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March 26, 1963
c. F. YOUNG
3,082,847
LOCKING AND OPERATING DEVICE FOR DOORS
Filed July 16, 1959
8 Sheets—$heet 1
rl05
INVENTOR.
CHARLES F. YOUNG
$24 JMM, (Mum.
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HIS ATTORNEYS
March 26, 1963
c. F. YOUNG
3,082,847
LOCKING AND OPERATING DEVICE FOR DOORS
Filed July 16. 1959
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March 26, 1963
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LOCKING AND OPERATING DEVICE FOR DOORS
Filed July 16, 1959
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CHARLES F. YOUNG
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March 26, 1963
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Filed July 16, 1959
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LOCKING AND OPERATING DEVICE FOR DOORS
Filed July 16, 1959
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CHARLES F. YOUNG
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3332,3427‘
Patented Mar. 26, 1953
2
operating and locking mechanism embodying the in
3,082,847
Charles F. Young, Covington, Ky., assignorto The Stew
vention.
FIG. 2 is a top plan view of FIG. 1.
FIG. 3 is an end view of the operating and control
art Iron Works Company, Inc, Covington, Ky., a cor
mechanism.
poration of Kentucky
‘FIG. 4 is a side view taken on line 4—4 of FIG. 3.
Filed .Iuly 16, 1959, Ser. No. 827,523
FIG. 4a is an enlarged view of the forked end of the
9 Claims. ((31. 189—7)
control lever.
FIG. 4b is an enlarged fragmentary view of the con
This invention relates generally to locking and operat
neotion between the forked end of the control lever and’
ing mechanism for sliding doors and more particularly
to manually and power operated gangs of sliding doors in 10 the control shaft.
FIG. 5 is a top view taken on line 5-5 of FIG. 3.
penal institutions which may be individually, selectively
FIG. 6 is a side view of FIG. 5.
or simultaneously operated from a central control station
FIG. 7 is a side view of an emergency hand crank.
preferably located at one end of the cell row.
FIG..8 is a top view of FIG. 7.
In pen-a1 institutions, such as jails and prisons, where
LOCKING AND OI’ERATING DEVICE FOR DOORS
FIG. 9 is a side view of a hand wheel mechanism.
FIG. 10 is -a sectional view taken on line Iii-It) of
individual cells or compartments are provided for con
?ning the inmates, said cells or compartments are prefer
ably disposed in long rows with a sliding door for each
FIG. 9.
FIG. 11 is a side View of the hand wheel mechanism
similar to FIG. 9 with the parts engaged.
FIG. 12 is a front elevation of the door operating de
‘ell or compartment opening into a common corridor.
In some instances, the rows of cells or compartments are
disposed in vertical tiers with the adjacent cells or com
vice in locked position.
partments of the tiers vertically lined or offset. Hereto
fore, the doors of the cells have been either operated by
power means or manually but not by both, and employ
ing diiferent operating mechanism for each.
Where power operating mechanism has heretofore been 25
employed, a separate motor unit and operating mecha
nism has been provided for the door of each cell or com.
FIG.
FIG.
FIG.
FIG.
FIG.
FIG.
13 ‘is a sectional view on line 13-13 of FIG. 12.
14 is a sectional view on line 14—14 of FIG. 12.
'15 is a front elevational view of FIG. 14.
16 is a front view of a door step.
17 is a side view of FIG. 16.
18 is ‘a front elevation of the door locking mecha
nism in neutral position.
partment. These have been electrically operated, and
accordingly are out of commission upon power failure.
FIG. 19 is a sectional view taken on line 19—I9 of
The main object of the invention is a gang of doors
mechanically or power operated through common con
FIG. 28 is a side view of FIG. 27.
Provision is usually made in such constructions for the 30 FIG. 18.
FIG. 2% is a side view of FIG. 18.
doors to be manually operated upon power failure but
FIG. 21 is a sectional view taken on line 2I—21 of
even in such, the doors are not only individually oper
FIG. 18.
ated but the manual operation for such individual opera
FIG. 22 is a top view of selector lug and slide bar.
tion is entirely separate from and independent of the 35
FIG. 23 is a series of sectional views taken along the
power operated mechanisrnf
_
control shaft showing selector lugs for consecutive doors.
In the present invention, each of the doors are auto
FIG. 24 is a front view of the safety pawls.
matically ‘locked in opened or closed positions and at
FIG. 25 is a sectional view taken on line 25-—25 of
both their top» and bottom ends, and a hollow lock post
FIG. 24.
or jamb is provided at the rear of each door opening to
FIG. 26 is a top view of FIG. 24.
eifect locking Without any projecting lugs at the front
FIG. 27 is a front elevation of the key lock and electro
of the door. The locking means is confined entirely
magnet selective controls.
within the door posts or jambs.
FIG. 29 is a view of the roller and cam plate assembly
at the top of the lock post.
necting mechanism.
FIG. 30 is a side view of the locking mechanism and
Another object of the invention is the provision of
the bottom of the lock post.
mechanically power operated gangs of doors with com
FIG. 31 is an enlarged view of an adjustable door stop.‘
mon connecting mechanism and adapted to be controlled
FIG. 32 is a front elevation of any door of the gang in
collectively, in selected groups or individually.
50
open position.
Another object of the invention is a gang of doors pro
FIG. 33 is a plan view of the bottom of FIG. 32.
vided with a top and bottom locking means for automati
FIG. 3'4 is an enlarged view of the operating bar guide
cally locking each door open or closed.
and stop;
Another object of the present invention is locking and
FIG. 35 is an end view of FIG. 34.
operating means for a gang of doors which is simple in
FIG.'36 is a view of bell crank lever.
construction and efficient in operation.
FIG. 37 is a view showing extreme positions of the
Another object of the invention is locking means for
bell crank.
a gang of doors which is mounted within a hollow post
FIG. 38 is an elevation of the power driven unit.
or jamb at the rear of each door opening and free of
FIG. 39 is a side view of a speed reducer in relation
projecting exposed parts.
60
to crank lever and hinged‘ reversible motor.
Another object of the invention is a locking and con
FIG. 40 is a side elevation of a compound lever ar
trol mechanism for a gang of doors in which any individ
rangement.
ual door or group of doors may be operated to either
open or closed position and locked independently of any
of ‘the other doors that may be in opened or closed posi
tion and locked.
Further objects of the present invention and certain
practical advantages will be referred to in or will be evi
65
FIG. 41 is a front view of FIG. 40.
Before describing in detail the herein disclosed em
bodiments of the invention, it is to be understood that
the present- invention is not limited to the structural
details or the particular arrangement of parts herein
shown, as devices embodying the present invention may
dent from the following description of the invention, as
take other forms. It also is to be understood that the
70
illustrated in the accompanying drawings, in which:
ph‘raseology and terminology herein used are for pur
FIG. 1 is a front elevation of a portion of a cell with
poses of description and not of limitation, as the scope
3,082,847
3
4
of the present invention is denoted by the appended
ber 27. The roller 28 is adapted to engage a cam slot
29 provided in a cam plate 30 which forms an integral
extension on the rear portion of a slide ‘bar 31. Cam
claims.
In the larger penal institutions, the cells or compart
ments, are disposed in long rows, with each cell of a
row opening to a common corridor or passageway.
Each
individual cell is usually provided with a sliding door
which forms a closure for the opening. The sliding doors
are preferably operated from a remote station, usually
slot 29 is provided with an inclined camming surface
29a which upon reciprocal movement of the slide
bar 31 to the right from the position shown in FIGURES
l8 and 29 raises the roller 28 to its highest level, as seen
inde?nitely while the faulty power equipment is under
in FIGURE 32. This has the effect of raising the lock
bar 24 which with the aid of inclined cam slots 25
withdraw the lock bolt 17 from engagement with the
door, to unlock the door.
A bracket plate 32 is rigidly attached to the door hanger
12 and projects vertically above said door hanger to
provide a support for a coupling link 33 which is pivoted
to the bracket plate 32 at 34. The coupling link 33
extends forwardly of the bracket plate 32 and has its
free end provided with a laterally extending lug 35 which
in its lowermost position engages the upper surface of
slide bar 31 and in its ‘alternate or uppermost position
engages in sliding contact a stationary slide rail 36. The
stationary slide rail 36 is constructed of an angle iron
repair.
?xed to the framework of the cell, as seen in FIGS. 18
located at the end of a row of cells. It is often neces
sary to move a great number of doors at one time and
such operation requires considerable force, therefore the
operating mechanism of the present invention is pref
erably connected to an electrical reversible motor or other
suitable driving means. Through the use of power driv
ing means the operator may stand at arms length from the
control cabinet for a better view of the cell rows and
inmates during opening and closing of the doors. How
ever, in case of power failure, manually operated con
trols are provided for the purpose of opening and closing
the doors. Such manually operated controls may be used
The operating and locking mechanism for each of the
doors of a series is substantially of a duplicate construc
tion and connected with a common operating bar and
control shaft extending along the row of doors.
Referring now to the drawings, a door 10, shown most
clearly in FIGURES 1, 2, l2, and 18-20‘ and 30 is pro
vided at its upper end with a hanger plate 11 which in
turn is rigidly secured to the door hanger 12 carrying a
pair of rollers 13, which are adapted to roll upon a
track 14. The track 14 is constructed of an angle iron
bar as clearly seen in FIGURES l8 and 20 and is secured
by any suitable means to the front wall of the cell. It
will be understood that the ?xtures used for hanging
the door may be of any suitable type which will permit
horizontal movement of the door in a direction parallel
to the length of the cell row while prohibiting vertical
displacement thereof.
The lower edge of the door is held in alignment by
a suitable U-shaped guide channel 15 which is attached
to the front of the cell and is adapted to receive a
similar but oppositely disposed U-shaped guide channel
16 which is rigidly secured to the bottom of the cell door.
A completely enclosed lock post or jamb 18 is ‘located
at the rear of the door opening; the jamb is of hollow
post construction to enclose a sliding lock bolt 17 which
is adapted to pass through holes 18a in the guide chan
nel 15 and engage either of two openings 19 or 26‘ pro—
vide at the leading and trailing edge of the door so
that the door may be locked in either its open or closed
position. The lock bolt 17 is supported at its rear by
a collar 21 which is rigidly secured to the jamb wall
as seen in FIG. 30. The forward end of collar 21 pro
vides a partial support for a pair of oppositely disposed
cam plates 22 and 23 as seen in FIGS. 18 and 30, which
are rigidly secured to the lower end of the vertically ex
tending lock bar 24. Each of the cam plates 22 and
23 is provided with an identical inclined cam slot 25. The
slots 25 are adapted to be engaged by identical spaced
rollers 26 mounted for rotation on lock bolt 17. When
the cam plates 22 and 23 are raised the lock bolt 17 is
moved horizontally inward and withdraw from a lock
ing position due to the camming action between the rol
lers 26 and the inclined cam slots 25'.
When the cam
plates are lowered the lock bolt is moved horizontally
forward into engagement with the openings in the guide
channels 15 and 16, thereby locking the door either in an
and 20.
The slide bar 31 is mounted for horizontal
reciprocal movement on brackets 37, as seen in FIGURE
21. The extent of movement of slide bar 31 is limited
by means of stud 38 which engages in elongated slots 39
in the slide bar to de?ne the limits within which the slide
bar may be reciprocated. A front cam tooth 46} is pro
vided on the upper edge of the slide bar and projects
vertically upwardly for engagement with the laterally
extending lug 35 of the coupling link 33 to swing the free
end of coupling link 33 upwardly into a position wherein
the laterally extending lug 35 is elevated to the level of
the stationary slide rail 36.
In its elevated position the laterally extending lug 35
of the coupling link 33 is in a position for coupling to
an operating bar 41 which extends parallel to the slide
bar 31 and forms a common power transmission means
for opening and closing one or more, or all of the doors
of a series or row of cells. The operating bar 41 is
mounted for horizontal reciprocation on the cell front
by means of supporting brackets 42, such as shown in
I-GURE 13. The operating bar is provided with a pair
of oppositely disposed latch pawls for each door of the
cell row. Each pair of pawls consists of a forward pawl
43 and a rear pawl 44. Each of said pawls is pivotally
mounted to the operating bar 41 at 45 and 46 respectively
with the free ends of the pawls spaced apart sufficiently
to engage between them the laterally extending lug 35
of the coupling link 33 when the link has been elevated
to a position, wherein, the lug lies in the plane of the
slide rail 36. Each of the latch pawls 43 and 44 is pro
vided with a laterally extending portion 47 and 48 respec
tively which is adapted to overlie the upper edge of
the operating bar 41 to form a stop for limiting the
downward pivotal movement of the pawls. The free or
forward end of pawl 43 is provided with a vertically
extending edge 49 which is adapted to engage the laterally
extending lug 35 of the coupling link 33 and move it
.along the stationary slide rail 35, toward the rear or to
the right, as seen in FIG. 13. Each of the pawls 43 and
44 is provided with a lower cam surface 50 and 51 re
spectively which automatically lifts the pawls when en
gaged with the laterally extending lug 35 of the coupling
link 33 thereby allowing the link to be engaged between
the pawls.
Means is provided for returning the slide bar 31 to a
neutral position during opening or closing movement of
open or closed position. Each of the inclined cam slots
the door. Said means comprise a tripper dog 52 which is
25 is provided with a vertically extending portion 2.5a 70 pivotally mounted at 53 on the cell front. The tripper
which functions to securely hold the lock bolt in its for
dog includes a lower arm 54 on one side of the pivot 53
ward locking position, as shown in FIGURES 201' and 30.
which is adapted to rest upon the rail 14 in the path
As seen in FIGURES 18, 20 and 29 the upper end of the
lock bar 24 is provided with a vertical extension mem
ber 27. A roller 28 is pivoted to the upper end of mem
of a roller 55 mounted upon the door hanger 12.
The
lower arm 54 is provided with a cam surface 54a which
is adapted to engage the roller 55 during a door opening
3,082,847‘
5
movement and a cam surface 54b which is adapted to be
engaged by the roller 55 during a door closing movement.
The tripper dog 52 is also provided with an upwardly or
6
gages the lower arm 54 of tripper dog 52 thereby shift
ing the slide ‘bar 31' to the left, into a neutral position
which brings the'rear cam tooth 59 forward of the rear
vertically extending arm 56 which is adapted to engage a
end of the slide rail 36 so that the ‘laterally extending lug
roller 57 mounted on the slide bar 31 and shifts or slides Cil 35 of the coupling link 33- may drop off of the rear or right
the slide bar 31 forwardly or to the left, as viewed in
end of the slide rail onto the upper surface of the slide
FIGURE 18, each time the tripper dog is actuated thereby
‘ban-as shown in FIGURE 18. As the laterally extend
returning the slide bar to a neutral position. Return of
the slide bar to a neutral position also advances the
ing lug 35 drops off of the rear end of slide rail 36 it is
released from engagement between the pawls 43 and 44.
front cam tooth 40 and rear cam tooth 59 which are lo 10 Thereafter the slide bar 31 must ‘be shifted to the right for
cated at spaced distances adjacent the front and rear re
rear cam tooth 59 to elevate the coupling link before the
spectively of the slide bar 31, a suitable distance from the
coupling link can be recoupled, by means of pawls 43 and
ends of the slide rail 36 to allow the laterally extending
44,- to the operating bar for a door closing operation.
lug 35 of the coupling link 33 to drop off of the end of
It will be further understood that ‘as the slide bar 31 is
the slide rail 36 when the door has reached either an 15 moved to a neutral position, the roller 28 drops into its
extreme open or extreme closed position, thereby locking
lower position when clear of travel rail 60 wherein the
the door in either extreme of travel. As the door moves
bolt 17 lockingly engages the bottom of the door, ‘as here
in either an opening or closing direction the tripper dog
tofore described.
52 returns the slide bar 31 and its associated cam plate
Thus, it is seen that the roller 28 will be caused to auto
30 to a neutral position, which action causes the roller
28 of the lock bar 24 to move to its lower position, as
matically position itself in its lower-most door locking
shown in FIGURE 18, whereby the lock bolt 17 lockingly
extreme closed position of thedoor, in response to the
tripper dog 52 returning the slide bar to a neutral position.
To close the door after it has been opened the slide
engages the door.
To positively lock the roller 28 in its lower position in
the cam slot 29 of the cam plate 35) a travel rail 69 is
position, as seen in FIGURE 18, at the extreme open or
bar 31 is shifted to the right so that rear cam tooth 59
rigidly secured, by any suitable means, to the door hanger
12. When the roller 23 is in its lower door locking posi
tion, the slide bar in neutral position, and the door closed,
as shown in FIGS. 18 and 29, the travel rail 60 is then
raises the laterally extending lug 35 of coupling link 33
seen to lie directly in front‘of the roller 28 to prohibit it .
moved into its highest position thereby withdrawing the
from moving upwardly along the inclined cam surface
2% until the slide bar is moved to the right into an un
locked position, as hereinafter explained. When the roller
28 is raised due to the slide bar moving to the right, and
the door is opened, the roller rides on the travel rail 60
and is maintained in its uppermost position throughout
the entire travel of the door. When the door has reached
its extreme open position the roller 28 then drops off
of the travel rail 60 at the same time that the laterally ex
to the elevation of the slide rail 36 While simultaneously
moving inclined portion Zeta of the cam slot 29 into en
gagement with the roller 28 and causing the roller to be
lock bolt 17 to unlock the door at the bottom, as hereto
fore described. The operating bar 41 is then advanced
so that the laterally extending lug 35 on the link 33 be
comes engaged between the pawls 4-3 and 44 which permit
the door to be moved to a closed position upon recipro
cating the operating bar 41 to the left. As the door is
closed by the operating bar 41, the roller55 on the door
hanger 12 actuates the tripper dog 52 which shifts the
slide bar 31 to a neutral position, this also moves the
tending lug 35 of the coupling link 33 drops off of the slide 40 front cam tooth 40 into a position, ‘as seen in FIGURE 18,
rail 36. Thus, the door is locked, in an open position,
whereby the laterally extending lug 35 of the coupling link
at‘the bottom by lock bolt 17, and at the top by the lateral
33 can drop oil” of the front end of the rail onto the
ly extending lug 35 of the coupling link 33 when it has
slide bar 31. Simultaneously, the roller 28 is caused to
dropped off of the right or rear end of the slide rail 36.
move
into its lowermost position wherein the lock bolt
In the closed position of the door the laterally extending
'17 engages the rear opening 20 of the door, automatically
lug 35 of the coupling link ‘33 has dropped off of the left
locking the door in a closed position. In a closed posi
or front end of the slide rail 36, the lock bolt ‘17 is in
tion
the door is locked at two upper points and one lower
locking engagement with the lower end of the door, and
point as heretofore described. A suitable stop 62 limits
the travel rail 6%} lies closely adjacent the roller .28, as
shown in FIGURE 18, thus locking the door at ‘three 50 the movement of the slide bar to the right as viewed in
FIG. 18.
points. In addition‘the door may be further locked by
The operating bar 41 is reciprocated by suitable means
moving the slide bar 31 to its extreme forward position,
or to the left as seen in FIGURE 18, to a deadlock posi
tion as hereinafter explained, wherein, the horizontal cam
groove 2% together with the end of the travel rail 66 sub
stantially surround and lock the roller 23 in its lower
housed within a cabinet located at one end of the row
of cells. A suitable reversible motor 64 is connected to
a vertically disposed shaft 65 by means of a multi-jaw
tooth clutch. The clutch consists of a stationary lower
portion ‘66a connected to the motor '64- and a separable
upper portion ‘66b. The upper end of the shaft 65 is
When a door is closed, as shown in FIGURE 18, the
provided with a bevel pinion 67 which meshes with a
slide bar 31 for that door, is either in a neutral or in a
deadlock position with the laterally extending lug 35 of 60 bevel gear 68 to which is attached a spur gear 69 adapted
to mesh with the rack teeth 79‘ provided on the lower
the coupling link 33 resting on the upper edge of the
edge of operating bar 41, as seen in FIG. 12, to move said
slide bar 31 and adjacent the forward edge of the slide
‘bar to the right or left depending upon the direction
rail 36 thereby locking the door against opening. Upon
in which the motor is driven. It will be understood that
moving the slide bar to the right by means hereinafter
described, the roller 28 is raised by inclined cam surface 65 as the operating bar 41 is reciprocated to the right, ‘as
seen in FIGURE 18, it will cause the doors to be opened
2% to withdraw bolt 17 and unlock the door and the
door locking position.
front cam tooth dd raises the laterally extending lug 35
of coupling link 33 to the elevation of slide rail 36. Si
multaneously with the lug raising operation the lug is
if proper engagement has been made with the coupling
link 33, or conversely if the bar is moved to .the left, as
seen in FIGURE 18, it will cause the doors to be closed
engaged between the coupling pawls 43 and ‘44 of the
upon properengagement with the coupling link 33. The
operating bar 41, thereby ‘connecting the coupling link
power means provide an easy and convenient mechanism
33 with the operating bar 41 to permit moving the door
into an open position upon reciprocating the operating
bar 41 to the right. As the door is opened by the op
erating bar 41 the roller 55 on the door hanger 12 en
for opening and closing a large number of doors simul
taneously and thereby relieve the operator from manually
moving a heavy load.
Manual means are provided for reciprocating the oper
3,082,847
8
ating bar 41 in case of power failure or should it be-de
sired to operate the bar by means other than the motor
64. Such manual means include a shift lever 71 having
an enlarged hub portion 72 which is connected to a cir
cular disk member 73‘ by means of a shaft 72a supported
for rotation in hub 81. The ‘disk 73 is provided with a
small projecting eccentrioally mounted pin 73a which is
adapted to engage the under surface of an upper projecting
ring 74 an raise the upper clutch half 66b to disengage
tion controlled by a double swing stop member 99 which
is pivotally secured at 100‘ to the wall of the cabinet. The
stop 99 is provided with a shoulder 101 to permit free
movement of the control lever ‘97 to an outward or un
locked position and back to a neutral position, without the
chance of being inadvertently locked in a deadlock posi
tion. The stop is provided with a notch 102 on its under
side to receive a pin 103 which also engages the shoulder
101 to prevent the control lever 97 from being inadver
the clutch while simultaneously engaging the horizontally 10 tently pushed into its deadlock position. The stop 99 is
disposed bevel gear 75 on shaft 65 with the pinion gear 76,
as seen in FIGS. 1, 3, 5 and 6. The outer surface of the
hub 72 is provided with a pair of spaced notches 77 and
78 which are adapted to be engaged by a spring urged
detent 79 mounted on a bracket 80 which is rigidly secured
to the cabinet wall. The bracket 80 also supports the lever
71 by means of bored hub 81. The detent 79 frictionally
retains the lever 71 in a ‘?rst position wherein the drive
motor 64 is connected to the vertical shaft '64 or in a
second position, wherein, the shaft 64 is disconnected from
the motor ‘and connected for manual operation. The
spring detent thus engages the crank in a number of
positions and maintains it in the selected position.
The pinion gear '76 is supported by a suitable bracket
82 which in turn supports a crank lever 83 which is driv
ingly connected to the bevel gear 76 by shaft 84 through
manually releasable and must be lifted upwardly from
the full line position, as shown in FIGURE 4, so that the
pin may clear the shoulder 101 and the hand lever shifted
into a deadlock position wherein the pin 103 engages the
notch 102, as shown in dotted lines in FIGURE 4. The
notch 102 is relatively deep and allows the stop 99 to drop
to a lower level, as shown by the dotted line position of
FIGURE 4, and is maintained in the dotted line position
of FIGURE 4, by a block 104, attached to the cabinet
door 105 passing over the stop when the cabinet door is
closed thereby locking the control lever 97 in a deadlock
position as seen in FIG. 1.
Thus, it becomes necessary to
first place the hand lever 97 in a deadlock position before
the door of the cabinet can be closed.
This insures that
25 an operator will not fail to positively deadlock the cell
doors before closing the cabinet door.
The upper end of control lever 97 is bifurcated to form
a fork 106. The fork 106 pivotally supports a pair of
spaced shoes 106a and 10612 which are engaged in a groove
formed between two connected but spaced collars 107a
it is desired to reciprocate the operating bar 41 by means
and 10717 rigidly connected to the control shaft 96, see
of the manual mechanism the crank 83 is pivoted from
FIGS. 4, 4a and 4b. The control lever 97 can thus recip
the dotted line position of FIGURE 7, to the full line
rocate the shaft 96 and its associated slide bars 31 while
position of FIGURE 7. In FIGURES 7 and 8, I have
permitting the shaft 96 to be revolved.
shown the details of the hand crank which may be used
The control shaft 96 is revolved by means of a hand
in emergency operation or in connection with a fully. 35
wheel 108 as best seen in FIGURES 3, 9, l0 and 11, which
manually operated device. Detent 87 is designed to lock
is drivingly connected to a pinion gear 109 by a shaft 110,
positively in a hole ‘88 provided in the crank 8-3 when the
pinion gear 109 is rotatably supported by bracket 111
crank is in a natural operating position, shown in full
which is connected to a wall cabinet 91. The hand
lines in FIGURE 7, or in a semi-positive locking position
with notch 89 when the crank is in a folded position, 40 wheel 103 is prevented from turning on the shaft 110 by
pin 112 which engages suitable slots provided in the
as shown in FIGURE 1, and in the dotted line position of
conical hub 113 of the hand-wheel. The pinion gear 109
FIGURE 7. The latter position being necessary in order
is locked in any selected position by means of a spring
to close the door provided on the cabinet 91. The detent
urged pawl 114 which is provided with a downwardly pro
87 is urged into positive engagement with the hole 88 by
jecting lug 115- which engages the teeth of the pinion gear
means of a spring 89. A push button 90 is associated
with the spring for disengaging the detent 87 from the
in any selected position. When the hand-wheel 108 is
pushed forwardly, or to the right, from the position as
hole 88 of the crank. To return the shaft 65 into engage
seen in FIGURE 11 to the position, as seen in FIGURE
ment with the motor 64 the shift lever 71 is rotated so
that the eccentrically mounted pin 73a engages the upper
9, the conical hub 113 of the hand-wheel engages a down
surface of the lower ring 92 thereby moving the clutch 50 wardly projecting portion of an L-shaped arm 116 to raise
into engagement while disengaging the gears 75 and 76.
the pawl 114 so that it frees the pinion 109 whereupon
A worm gear 93 is mounted on shaft 65 and is in driv
rotation of the hand-wheel causes the pinion 109 to be
ing engagement with a worm wheel 94 of a rotary limit
rotated. The pawl 114 is pivotally mounted at 117 to the
switch 95 which is adapted to control the forward and
rear wall of the cabinet. The pinion gear 109 is con
reverse movement of motor 64 by automatically shutting
nected to a vertically disposed rack bar 118 which is pro
off the motor in response to a preselected number of
vided with tooth segments adjacent its upper and lower
revolutions of said motor. This in turn controls the
ends. The pinion 109 is in mesh with the lower tooth
movement of operating bar 41.
segment and is adapted to raise or lower the bar in re
It will be understood that the horizontally disposed
sponse to rotation of the hand-wheel 108. The rack bar
bevel gear '75, hub 74a, supporting rings 74 and ‘92 and 60 is slidably supported on the rear wall of the cabinet by
upper clutch portion 6612 form a unit which is suitably
means of suitable brackets 119 and 120 as seen in FIG. 3.
splined on shaft 65 for limited axial movement along the
The upper end of the rack bar is in mesh with a pinion
shaft 65 while still maintaining driving engagement with
gear 121 which is splined upon the control shaft 96 for
said shaft so as to permit movement into and out of en
revolving the shaft in response to the raising or lowering
gagement with the pinion gear 76, or the lower clutch por 65 of the rack bar 118. A pointer 122 is attached to the
tion 66a without axially moving the vertical shaft 65 and
lower end of the rack bar 118 and projects through a slot
the pinion 67 at the upper end thereof.
123 provided in an indicator 124 to show the proper rota
The slide bar 31 for individually controlling the opera—
tional setting of the control shaft 96 for selectively open
tion of the several doors of the row of cells is manually
ing the desired door, or doors.
reciprocated by control shaft 96 extending longitudinally
Above the rack bar 118 is a plunger 140 which is urged
parallel with the operating bar 41 with its forward end
to the left, as seen in FIG. 4, by a spring 140a. The
extending into the control cabinet 91. The control shaft
plunger is supported by suitable brackets 141 and 141a.
96 is coupled to the upper end of a hand control lever 97.
The rack bar 1118 must be in its lowest or “all” position
The hand lever 97 is pivotally mounted on a bracket 98
before the cabinet door can be closed. When the door
which is ?xed to a wall of the cabinet 91 and has its mo
bracket 85. The crank lever 83 is pivoted at 86 to the
bracket 85 and when not in use is maintained as shown in
FIG. 1 and in the dotted line position of FIG. 7. When
3,082,847
1t)
is closed it locks the rack in its “all” position by extend
ing over the upper end of the rack bar.
As seen in FIGURE 22, ‘the control shaft 96 is pro
133a which is slidingly received within a hollow collar
member ‘137; The lever 135 has a ?nger portion 135a
which projects through suitable slots in the collar member
137 and body portion 136 to contact a stud 138 contained
in body portion 133a which has a coil spring 139 secured
to the reduced forward end 138a thereof. Thus, the lever
on the shaft so as to be disposed between a pair of
i135 exerts pressure on the locking shoe via the yielding
spaced ‘lugs 126 and 127, projecting from the slide bar 31
medium of spring 139.
of each door. Each key 125 for each door is constructed
Lever 135 is in a lowered inoperative position when
of a main collar 128 which is rigidly mounted to the con
trol shaft 96 and a pair of wings or bits 129 and 131i 10 it is positioned within the space provided between the
two enlarged conical members 131 and 132 and this oc
projecting radially outwardly from the outer surface of
curs only when the control lever 97 is in a neutral posi
the collar 128. One wing ‘130, of each key 125 is ar
tion. For this reason it is necessary to return the control
ranged to be in simultaneous alignment so that all of the
lever 97 from the unlocked position back to a neutral
doors of a series may be simultaneously control-led. Sec
position to cause the locking shoe 133 to be disengaged
ond wings 129a or 12% for example of each key have
‘from the rack .1314 in‘the operating bar 41 when it is de
relatively different angular dispositions from the aligned
sired to open the door.
wings 130 of their respective keys, for the other doors of
As seen in FIG. 32 two safety switches 142 and 143
a series, to provide an individual or selective door con
vided with a plurality of keys 125, one key is provided
for each door of the series of cells. Each key is located
common to each row of cells are also provided and each
trol, when adjusted or set to an intermediate registry with
the lugs 126 and 127 of the slide bar of a selected door. 20 is operated by an enlarged pair of opposed conical mem
bers 144-and 145 respectively on shaft 96 when the control
In other words, all of the doors may be selected and
lever 97 is in deadlock or unlock position. The safety
opened by using the wings 139, which are adapted to si
switches are so positionedas to be actuated by any po
multaneously align with each other whereas any one door
sition of the control lever 97 other than neutral. One of
may be selected through the use of its respective wing
129, 129a or 12%. Thus, when wing 129 is in registry 25 the switches 142 or 143 is connected by a suitable circuit
to the power supply of drive motor 64 which is cut off
with its particular door the wings 129a and 12912 for ex
when the switch is actuated. The other switch is connect
ample of all other keys ‘are not in registry with their doors
ed with solenoids 146 (the purpose of which is hereinafter
whereas when wing 1311 of a particular key is in position
described) by a suitable circuit and prevents energizing
then all the other wings 130‘ for the remaining doors will
said solenoids when the control lever 97 is in any position
simultaneously be in position for engagement with their
respective projecting lugs 126 and 127. Additional wings
may be added ‘to each key for operating the doors in two
other than neutral.
or more groups or combinations.
after the door is in a locked full open or full closed posi
tion, the control shaft 96 is moved to the left, which in
turn moves the slide bar 31 all the way to the left via
the keys 125, as seen in FIGURE 18, so that the hori
zontal cam groove 2%, see FIGS. 18 and 29‘, of the cam
When the control lever 97 is in a deadlock position
the wings of the keys 125 are in actual contact with their
respective forwardmost lug 126 of their respective slide
bar 31, thereby having a locking effect upon all of the
By placing the control lever 97 in a deadlock position,
slide bars in the sense that they cannot be reciprocated.
When the control lever 97 is moved to a neutral position
plate surrounds the roller 28, and locks it in this position.
the wings of keys 125 move into acentral position be
tween the proiecting lugs 126 and 127. When the control
deadlock position also causes the locking shoe 133 to
engage the rack 134 provided in the operating bar 41
and simultaneously causes switches 142 and 14-3 to-kill
the electric motor 64, and prevents energizing the
solenoids 146. In deadlock position the control lever 97
lever 97 is in a neutral position the control shaft 96 and
its associated keys can then be revolved by means of hand
wheel 108 so as to select any or all doors.
For example,
if the hand-wheel is rotated so as to position the pointer
122 at the “all” position then all of the wings 13%‘ will be
simultaneously aligned between their respective projecting
lugs 126 and 127 of all doors. Now assuming that a door
is in ‘a closed andlocked position, in order to unlock
the door the control lever 97 is moved to the unlocked
position which has the effect of reciprocating the control
shaft 96 and its associated keys 125 to the right, as viewed
in FIGURE 22, so as to abut against the rear lug ‘127 and
move the. slide bar 31 to the right and bring about the un
locking of the door, as heretofore described, by elevating
the laterally extending lug 35 of coupling link 33 to con
nect the same with the operating bar 41 and to release the
locking bolt 17 from engagement with the door, thereby
permitting the door to be opened upon actuation of the
operating bar 41.
It should be noted that when the control lever 97 is in
unlocked position, additional locking means as seen in
Furthermore, movement of the control lever 97 into a
is latched into notch 102 of stops 99 so that access by
an inmate to the operating bar 41 would not permit move
ment of the bar since it is locked in the control cabinet.
Therefore, in deadlock position the doors cannot be moved
manually or by the mechanical power means.
As seen in FIGS. 12 and 18 switches 150‘ and 151 are
provided to indicate Whether the door is closed and locked
‘respectively.
Both switches are in- a common circuit so
that both must be actuated in order for a light on the
control panel to be operated. For example, the door must
be in a closed position, as shown in FIGURE 18, for the
switch 150 to be actuated by an extended ?nger 152 con
nected to the coupling link 33 engaging the switch 150
when the coupling link 33 drops off of the‘ front end of
slide rail 36. Now, unless the lock bar 24 and its asso
ciated lock bolt 17 are in locking position, the switch 151
will not be actuated by a lever arm 152 which is pivoted
at 34 into engagement with said switch only when the
roller 28 is in its lowest position as shown in PEG. 18.
FIGURES 12, 14 and 15 come into play. -A pair of
In other words there are two switches 15%) and 151 in a
spaced, enlarged conical members 131 and .132 are rigidly
secured to the shaft 96. The opposed enlarged'conical 65 common circuit, both must be closed in order for the cir
cuit to be completed, and when the circuit is completed-a
members 131 and 1312 are provided to move. a locking
light in the cabinet 91 Will'either go on or off Whichever
shoe .133 into a rack or toothed segment 134 set ?ush
is desirable to indicate that the door is closed and locked
into operating bar 41. The enlarged conical members are
both at the front and at the rear endsthereof. It will
adapted to engage a lever 135 pivoted at 136 between sup
port brackets 136a, ‘when the control lever 97 is in a 70 be noted that both the coupling link 33 and the roller 28
must be in a downward locking position before the signal
deadlock or unlocked position, and raise the lever 135,
lights for any door can be operated. A switch 150a is
as seen in FIGURES 14 and 15 which moves the locking
provided, see FIG. 12, to indicate when the door is in an
shoe 133 into ‘locking engagement with the rack 134 of
open position. The extended ?nger 1521s adapted to
operating bar 4.1. As seen in FIG. 14 the locking shoe
133 is provided with an elongated hollow body portion 75 actuate ‘switch 159a when the coupling link drops off of
3,082,847
11
-the rear end of slide rail 36 and may be in a second com
mon circuit with switch 151 whereas both must be actu
ated before the circuit is closed.
The rows of lights entitled “open” and “closed” as
seen in FIG. 3 provided in the control cabinet 91 would
be responsive to the open and closed position of the doors.
For example, a “closed” light for a particular door could
go on when the door is closed and locked in response to
switches 150 and 151 being actuated. An “open” light
12
solenoid 146 to be effective upon energization. As here
tofore explained any position other than the neutral posi
tion causes the safety switches 142 and 143 to disengage
the solenoids 146 as well as the drive motor 64.
It should now be apparent that the slide bar 31 may
be moved only within a limited range and its move
ment to an unlocking position may be caused by mov
ing the control lever 97 from a neutral to an unlocked
position, by the solenoids 146, or by a key.
Each of
could go on when the door is open and locked in response 10 these means imparts the same movement to the slide
to switches 151 and 150a being actuated.
Means is provided whereby the door may be manually
unlocked when in either an open locked position or in a
bar and in substantially the same range. As the door
is opened or closed the slide bar 31 is always returned
to a central neutral position by means of the tripper dog
closed locked position, by means of a key, see FIGS. 1,
as heretofore described.
27. The key operated mechanism is located in the door 15
No special arrangement is needed for opening all the
jamb 154 located at the forward end of the door to prevent
doors by hand. With the operating bar 41 located in
tampering and includes a vertically extending rod 155,
its normal rearmost or deadlocked position, and the in
an upstanding ?nger 156 pivotally connected at 157 with
dicator 122 set on “all” (which is the necessary setting
a bracket 158 secured to the front wall of the cell row,
to close cabinet door) in case of ?re or other emer
and also pivotally connected for sliding pivotal movement 20 gency, the operator need only open the cabinet door, pull
within a groove 159 provided in a link 169 at the upper
the control lever 97 out to the unlock position and re
end of the rod 155. The upstanding ?nger 156 is adapted
turn the same to neutral.
Each inmate can then open
to move in a clockwise direction about the pivot 157 when
his own door immediately. The doors will automatically
the rod 155 is moved in an upward direction in response
lock in either an open or closed position as heretofore
to a key actuating said rod. It will be understood that a 25 described.
key inserted into the lock 161 containing suitable locking
Shock absorbing stop and guide means are provided
mechanism the details of which form no part of this in
for the operating bar 41, as shown in FIGS. 32 and 34.
vention, and therefore are not shown herein, is adapted
to move the rod 155 in an upward direction. The ?nger
A guide rod 175 is secured to the cell wall by spaced
brackets 176 and 177. A guide member 178 is rigidly
156 engages the front cam tooth 58 on the slide bar 31
and moves the slide bar to the right in response to turning
the key in lock 161. When the slide bar 31 shifts to the
right we have the same action as heretofore described
?xed on the free end of bar 41 and slidingly engages
the rod 175. A shock absorber is provided adjacent
each end of the rod 175 and consists of coil spring 179
inside of which is mounted a solid sleeve 180 of relatively
wherein the laterally‘ extending lug 35 of the coupling
shorter length than the spring to prevent the spring from
being compressed beyond its limit. Double nuts 181
provide an adjustment for the spring and sleeve. The
guide member 178 is adapted to strike the spring 179 in
either extreme of travel of the operating bar '41. Only
link 33 is raised to the elevation of slide rail 36 and the
lock bolt is disengaged from the door in response to the
lock bar and its associated roller 28 being raised. The
door may then be opened by operating bar 41. While
the door is being opened the tripper dog 52 returns the
one set of stop and guide means is needed for the bar
slide bar 31 to a neutral position and this in turn moves 40 41.
the ?nger 156 in a counter-clockwise direction about pivot
157 and lowers the rod 155 to its initial position before
the key unlocking operation. In order for the door to
be unlocked by the key the control lever 97 must be in a
neutral position for if it were in a deadlock position the
key would be ineffective since the slide bar would be
locked against movement by the key member 125 engag
ing the projecting lug' 126 and retaining the slide bar 31
in its most forward position.
Means is provided for electrically unlocking the cell
doors when in an open locked positioned or in a closed
locked position. Said means include a solenoid or electro
magnet 146, as best seen in FIGURES 27 and 28. A
solenoid 146 is associated with each door of the cell row
and is preferably rigidly mounted on bracket 158 adja
cent the forward end of each door. The solenoid is of
the pull type and has its operating arm 147 pivotally
attached at 148 to a lever 149. The lever 149 is pivoted
at its lower end on pin 165 and when the solenoid 146
is energized the arm 147 is moved to the right from the
position shown in FIGURE 27 thereby pivoting lever 149
about pin 165 in a clockwise direction so that it engages
a roller 166 on slide bar 31 and moves the slide bar to the
right into a door unlocking position. ‘It will be under
stood that the only function of the solenoid is to move
the slide bar into a door unlocking position. Electrical
push buttons 170 are provided in the cabinet 91 for each
of the solenoids 146. An “all” button 171 is also pro
vided, whereby, all of the solenoids can be energized
simultaneously thereby unlocking all of the doors at one
time. An ordinary simple circuit, the details of which
are not shown herein, is provided between the buttons 170
and 171, the solenoids 146 and a suitable source of elec
trical energy. ‘It will be further noted that the control
lever 97 must be in a neutral position in order for the
Another form of safety pawl is provided, as shown in
FIGURES 24, 25, 26 and 32. Said safety pawls or
latches include a front pawl 183 and a rear pawl 184
which are supported for limited vertical movement in
suitable grooves provided in a housing 185 which is slid
ably mounted on the operating bar 41. Pins 186 and
187 on the pawls 183 and 184 respectively engage slots
188 and 189 respectively of the housing 185 and limit
the vertical movement of the pawls. The housing 185 is
held in place on the operating bar 41 by means of a
spring urged plunger or detent 190 which has a pointed
lower end engaging in a notch 191 provided on the top
surface of the operating bar 41, as seen in FIGURE 25.
The plunger 190 is adjustable by means of screw 192
so as to break away from the bar 41 at any predeter
mined pressure for protection of both inmates and mech
anism. Two ?xed stops 193 and 194 are provided for
each door and connected to the cell front to limit the
movement of the safety pawls so that they can be easily
recovered after breaking away from the bar 41. Thus,
in the event that movement of the door is obstructed by
an inmate, for example, if he placed his hand, head or
any other obstruction within the opening between the
door and the jamb the plunger 190 would break away
from the notch 191 after a predetermined pressure has
been reached thereby stopping the closing action of this
particular door and permitting the operating bar to con
tinue its movement, This safety pawl construction pro~
tects both the inmates and the locking mechanism. It
will be noted that the notch in the upper surface of the
operating bar 41 need not extend along the entire length
of the bar but may merely be a conical notch located
at a speci?c point to receive the pointed end of the
plunger of detent member 198.
As previously explained during a door opening opera
3,082,847
13
14
tion the front'pawl 43 or 183 engages the laterally ex
tending lug 35 of the coupling link 33 and as the operat
ing bar 41 is reciprocated to the right or to the rear the
link 33 and the front pawl, =as heretofore described, and
thus leave the coupling link '33 free to drop at the rear
end of the slide rail 36. Following the counterclockwise
front pawl through its engagement with the lug 35 pushes
or reverse movement of the arm 205, the arm again
reverses its direction and travels in a clockwise direction
the door into an open position. However, it sometimes
happens that. when the operating bar 41 is moved too
slowly, or any undue restrictionprevents the door from
being freely opened, the frictional contact between the
front pawl and the laterally extending lug 35 of coupling
link 33 occasionally prevents the link 33 from dropping
off of the right or rear end of slide rail 36 as seen in
FIG. 18. Failure of the links to drop prevents the de
sired locking action which occurs when the coupling
link 33 drops off of the slide rail '36. Furthermore, since
it is often required to close a door by hand without the
use of the operating bar it is desirable to have the front
pawl partially pass over or overtravel the lug 35 when
in its rearmost position so that when the link is raised
to an over-travel position indicated by the dot-dash “over
travel” line of FIGURE 37. This entire door opening
motion of the arm 295 is provided by a single continuous
motion of the crank 269‘ as it moves from the full line
position to the dotted line position 2113’ of FIGURE 37.
Starting with the door in a closed position and the
arm 205 in the full line position of FIGURE 36, upon ro
tating the crank 209 in a clockwise direction from the
full line position toward the dotted line position 209' of
FIGURE 37 the crank pin 210‘ travels as follows within
the cam groove 211 of the base leg 264, to move the
arm from a door~closed position to a door open position.
Starting with the crank pin in the full line position of
FIGURE 36 it will move along the cam groove during
plained, the front pawl will also be raised and allow the 20 initial rotation of the crank ‘2439' until it engages the pro
laterally extending lug to slide under the pawl onto the
jection 214 which provides the reverse movement in the
slide rail 36 to a position wherein the door may be
arm 235, then as the pin moves into the dotted position
215 in groove 211 the crank 2G9 drops into the lower
closed by hand. However, when the coupling link 33
fails to drop away from the front pawl due to frictional
portion of its turn and pin 21%‘ engages the projection
engagement this overtravel is impossible. To avoid this 25 216 which again reverses the direction of travel of- arm
possibility a spur 195 is attached to pawl 43 as seen in
205 and moves it in a clockwise direction about the pivot
FIGURES 12 and 18 and is designed tostrike a roller
212 into ‘the “over-travel” position shown in dot-dash
1% which is attached to the wall of the cell and raise
lines in FIGURE 36. Depression 217 provides for a lirn~
the pawl 43 with an abrupt motion at approximately the
ited amount of dwell in the door closing movement but
instant link 33 is due to drop, upon reaching the right
due to the upward trend of the major portion of the
or rear end of slide rail 36. By means of the spur 195
curved path of the crank 299 and crank pin 21b during
the pawl is held in an upward position, as seen in FIG
a door closing operation wherein the crank 269 is re
URE 12, above the level of the slide rail 36 thereby
volved in a counter-clockwise direction from the dotted
permitting the coupling link and its associate lug 35 to be
line position 203' of FIGURE 37 to the full line position
raised and slid under the pawl so that the door can be
of FIGURE 37 the depression is bypassed. Likewise
by action of the rear cam tooth 59, as heretofore ex
closed by hand without the necessity. of ?rst moving the
operating bar and the pawls to their forward position.
In the modi?ed embodiment of the safety pawl, shown
in FIGURES 24, 25, and 26, the front pawl is raised by
means of a lever 193 which is pivotally attached at 199
to the. forward pawl 183 and designedto pivot about a
pivotal support member 290 secured to the housing 135
when the lever 19‘8 strikes roller 201.
In FIGURES 36, 37, 38 and 39 I have shown modi?ed
means for reciprocating the operating bar 41 which can
be used for any desired number of doors but is particu
larly suited for a smaller number than the structure here
tofore described. A bell crank lever is providedhaving a
relatively short base leg 294. and an elongated vertical
in a door closing position the projection 214 is bypassed
as the curved path of the pin 21% and crank 29? is down
ward during its initial counterclockwise movement from
the dotted line position 2G9’ of FIG. 37.
In moving the door from a closed position as shown
in full ‘lines in FIGURE 36, to the open position, shown
by the dotted lines of FIGURE 36, the cam pin 21%
moves from the full line position along the bottom sur
face of the cam groove 211, as the crank 209' travels
in a clockwise direction about shaft 213, and moves the
arm 205 from the full line position to the dot-dash
“Stop” line position of FIGURE 36. As the crank pin
‘210i begins its upswing in the lower portion of the clock
wise revolution about shaft 213 it contacts the upper
arm 205 connected to the operating bar 41 by means of a 50 surface of the cam groove 211 and upon contacting the
connecting link 206 which is pivoted at 207 to the arm
projection 214 provides the arm 235 with the reverse
205 and at 208 to the bar 41. The base leg 204 extends
‘movement thereby reversing the direction of the move
at substantially right angles to the arm 205. The bell
crank is actuated by -a power driven crank 299 which is
ment of the arm 235‘ and moving it into the position in
dicated by the dot-dash “reverse” line position of FIG
adapted to revolve in a forward and reverse direction 55 URE 36. Continued clockwise movement of the crank
somewhat less than a full turn. The crank 209 is pro
2053 causes the crank pin 21% to engage the projection 216
vided with a crank pin 210 which is received within a
on the lower surface of the cam groove 211 which again
cam slot 211 provided in the base of the leg 204. The
reverses the direction of the arm 295 and moves the
bell crank is pivotally mounted at 212 on a suitable
arm into the dot-dash “over-travel” position indicated
bracket not herein shown. Crank 2419 is keyed to a 60 in FIGURE 36. Depression 217 provides the dwell in the
shaft 213 which is suitably supported and adapted to be
door opening position which permits the crank to continue
driven by power means and preferably driven through
to revolve and allow the power drive to come to a stop
means which include a clutch and speed reducer, here
without undue shock. When moving from a door opened
inafter described. The purpose of the present structure
position to a door closed position the depression 217 is
is to move the door as follows. Starting from the for 65 bypassed and projection 214 is also bypassed when clos
ing the door. In this operation the crank pin begins its
ward or door closed position as indicated by the solid line
travel along the upper edge of the cam groove 211 by
position shown in FIGURE 36 the arm 205 is moved to
passing the depression 217 as well as bypassing projec
the right or to the dotted line position 205' where the
tion 214 since the curved path of the crank pin is down
door is in a full open position and the coupling link 33
ready to drop. At this point the clockwise movement 70 ward. Limit stops 21S and 219' are provided for the
crank 239 to insure that the momentum of the motor
of the arm 205 stops for an instant as indicated by the
will not move the crank beyond the desired stopping
dot-dash “stop” line of FIG. 36 then reverses to move in
point after the current has been cut off. The power is
a counter-clockwise direction for aslight amount as indi
cut off by suitable limit switches not herein shown.
cated by thev dot-dash “reverse” line to break any frictional
As heretofore mentioned the crank 209 is keyed to
contact between the laterally extending lug 35 of the
3,082,847
16
15
one end of a shaft 213 which has its other end journaled
in casing 220a which is keyed to a shaft 221a which is
connected to a speed reducing mechanism 221 of any
suitable form which is in turn driven by a reversible
motor 222 mounted on a hinged shelf or bracket 223
as seen in FIGS. 38 and 39. A clutch collar 220 is
outer surface of the quadrant 245 by means of a spring
250 to locate the arm 239 in a neutral position. A ?nger
engageable loop 251 is provided at the upper end of the
latch pin 249 in order to release the pin 249 from en
gagement with the shoulder 248 when it is desired to
move the arm 239 from a neutral position to a deadlock
position. The arm may be moved freely between the
unlocked and neutral position without disengaging the
the position, shown in FIG. 38, drivingly connects the
pin 249. Since thearm 239 is not positively locked in
casing 220a and drive motor 222 to the crank 2&9. In
its alternate position the collar 220 is disengaged from 10 a deadlock position and a limited amount of space is
provided between the ‘arm and the control cabinet in a
the casing 22% and engaged with the hub 234 by means
closed position, a certain amount of yield is provided
of teeth 234a whereby the crank 269 may be actuated
to compensate for the contraction and expansion of
by means of a hand crank 231 which has a worm 232
control shaft 96 due to temperature changes, thereby
which engages worm wheel 233 on hub 234 which trans
splined for reciprocal movement on the shaft 213 and in
mits its motion to the crank 269, through teeth 234a,
clutch collar 220 and shaft 213. The shifting mecha
nism at 223 for reciprocating the clutch collar 220, which
avoiding damage to slide bars 31 and the selector keys
125. The compound leverage of this device provides
the additional power which is required for the operation
has an eccentric 229 adapted to be received in a groove
230 on clutch collar 22%, is substantially the same as
that described in connection with the shift 71 of FIGS.
3, 5 and 6. The reversible motor 222 is adapted to drive
the crank 209 through the speed reducer 221 by means
of a large number of doors, and further eliminates re
bound of the slide bars 31 when thrown too abruptly
into an unlocked position. The bracket 244 is provided
with a plurality of mounting slots as seen in FIGURE
41 for adjusting the stroke of the lever 235 which may
of a belt 224. The hinged bracket 223 is held in a down
be accomplished by raising or lowering the ‘bracket. The
ward position by gravity and limited in its downward
arm 239 is provided with a handle 252 for engagement
movement by a ?xed bracket 225 having a plurality of
by an operator for manual operation thereof.
spaced notches 225a and 22512 adapted to be engaged by
an adjustable spring plunger 226 attached to the bracket
223. Under normal operation the hinged bracket 223
and motor remain ?xed in the position shown in FIG
URE 39, with plunger 226 in engagement with notch
225a, but, during the door opening or closing operation
should the door become blocked or the operating mech
anism become jammed, the sudden strain on the belt 224
would lift the motor by pivoting bracket 223 ‘about the
hinge 223a and said members would be caused to re
main in their lifted position by means of plunger 226
In FIGS. 16 and 17 I have shown a removable and
adjustable door stop.
A threaded sleeve 255 encloses
a suitable resilient material 256 which engages the rear
end of the door hanger 12. The sleeve 255 is provided
with a threaded stud 257, which in turn is threadedly
engaged in a bracket 258 and retained in selective ad
justment thereon by means of a nut 259. The bracket
258 is rigidly secured to the track 14, as seen in FIGS.
16 and 17.
In FIG. 31 a modi?ed form of front door stop is
shown and comprises ‘a hollow threaded sleeve 269 which
is rigidly supported in a front channel member 261. The
sleeve 260 encloses a suitable resilient material 262
against which the door may strike, as shown in FIG.
engaging notch 2251; of the bracket 225. This move
ment accomplishes two purposes, namely, it releases the
tension on the belt 224 and reduces its driving power and
is also eifective in tripping a safety switch not herein 40 19. A screw 2631b provides for ‘adjustment of the resil
shown which will automatically disconnect the power to
ient material 262 within the sleeve 260.
In view of the foregoing description, taken in con
the motor 222. Following correction of the trouble,
junction with the accompanying drawings, it is believed
pressure on a handle 227 which is rigidly secured to
the bracket 223 will return the bracket and the motor
that a clear understanding of the construction, operation
to a running position wherein plunger 225 engages notch
and advantages of the device will be quite apparent to
225a. It will be understood that the described crank
those skilled in this ‘art.
‘and lever mechanism may be directly driven by a power
Having thus described my invention, what I claim is
unit similar to that heretofore described in connection
new and useful and desire to secure by United States Let~
with FIGURES 1, 2 and 3 but the present embodiment
ters Patent, is:
is ‘a somewhat more ?exible arrangement and is especially 50
1. A gang of doors for a row of cells and operating
adapted for a cell row having a relatively small number
and connecting mechanism therefor comprising a single
of doors.
motor and a manually operated means disposed at one
In FIGURES 40 and 41 there is shown another em
end of said cell row, common power transmission means
bodiment of the present invention wherein a compound
selectively operatively connected to said motor or said
lever arrangement is provided for reciprocating the con 55 manually operated means for opening and closing said
trol shaft 96 and designed to replace the control lever 97
doors, connecting means for each of said doors for selec~
when a cell row is provided which has a large number
tively connecting one or more of said doors to said power
of doors. A main lever 235 is pivotally mounted at 236
transmission means, key actuated means operatively con
on a bracket 237 which is rigidly secured to the .end of
nected to said connecting means and adapted to actuate
the cell row within the cabinet 91. The upper end of the 60 said connecting means into coupling engagement with
lever 235 is provided with a yoke 238 adapted to engage
said power transmission means.
the control shaft 96. The lever 235 is connected to a
2. A gang of doors for a row of cells and operating
double bell crank having ‘a main ‘arm 239 and a short
and connecting mechanism therefor comprising a single
arm 240. The short arm 240 is provided with a roller
motor and a manually operated means disposed at one
241 which is adapted to engage a slot 242 provided in
end of said cell row, a common power transmission means
the lower end of the lever 235. The bell crank is piv
selectively operatively connected to said motor or said
oted at 243 on a bracket member 244 which is rigidly
manually operated means for opening and closing said
secured to the end of the cell row. The bracket 244 is
doors, connecting means for each of said doors for selec
provided with a quadrant 245 having a stop 246 which
locates the arm 239 in an unlock position. The deadlock 70 tively connecting one or more of said doors to said power
transmission means, electromagnetic means operatively
position of arm 239 is located by means of stop member
connected to said connecting means and adapted to actu
247, rigidly secured to the arm 239, engaging projecting
ate said connecting means into coupling engagement with
bracket 237. A stop shoulder 248 is provided on the
said power transmission means.
quadrant 245 and is adapted to be engaged by a latch
3. A gang of doors for a row of cells and operating
pin 249 which is normally urged into contact with the
3,082,847
17
18
and locking mechanism therefor comprising, an operating
said control bar and slide bar, said control lever having
dead lock, neutral and unlocked positions, said slide bar
moving said connecting means into'coupling engagement
bar for moving one or more of said doors, power means
for actuating said operating bar connecting means asso~
ciated with each door adapted to be coupled to said op
erating bar, a slide bar for each door, locking means
associated with each door for locking said doors in their
open or closed position, means operatively connected be
tween said locking means and said slide bar for each re
spective door whereby reciprocation of said slide bar in
one direction moves said locking means into a door un
locking position and reciprocation of said slide bar in the
‘opposite direction moves said locking means into a door
locking position and electromagnetic means for selectively
reciprocating said slide bar.
4. A sliding door operating mechanism, comprising, a
sliding door, an operating bar for moving said door, a
coupling link connected to said door, a pair of spaced
opposed pawls comprising a front and rear pawl pivotally
mounted on said operating bar, said pawls adapted to op
eratively engage said link, a stationary guide rail having a 20
length whereby said coupling link drops off of the front or
rear end of said stationary guide rail when said door
reaches a completely ‘closed or completely open position
respectively, means for moving said coupling link onto
with said operating bar in response to movement of said
control lever toits unlocked position, locking means as
sociated with said door and operatively connected with
said slide bar whereby reciprocation of said slide vbar in
response to movement of said control lever to a'dead lock
position moves said locking means into a door locking
position and movement of said slide bar in response to
movement of said control lever to an unlocked position
move said locking means to a door unlocking position,
means operatively connected to said control bar and
responsive to movement of said control lever and con
trol bar to lockingly engage said operating bar against
movement in all positions of said control lever except
neutral, and safety means operatively connected with said
drive means and responsive to movement of said control
lever and control bar to render said drive means inoper
ative in all positions of said control lever except neutral.
7. A sliding door operating mechanism, comprising a
sliding door, an operating bar for moving said door, a
coupling link connected to said door, a pair of spaced
front and rear opposed pawls mounted on said operating
said stationary guide rail‘for engagement between said 25 bar, said pawls adapted to operatively engage said coupling
link, a stationary guide rail having a- length whereby said
spaced pawls, said front pawl frictionally engaging said
coupling link drops off of the front or rear end of said
link and pushing it along said guide rail during a‘ door
stationary guide rail when said door reaches a completely
opening ‘operation in response to movement of said oper
ating bar, a lever projecting from said front pawl, means
adapted to engage said lever when said coupling link
reaches the rear end of said stationary guide rail and
causing said front pawl to be pivoted upwardly and there
by positively break ‘frictional contact with said link and
closed or completely open position, means for moving said
coupling link to the level of said stationary guide rail for
engagement between said spaced pawls, said front pawl
frictionally engaging said coupling link and pushing it
along said stationary guide rail during a door opening
operation, power driven means for actuating said operat
guide rail and said front pawl to overtravel said coupling 35 ing bar including means for moving said door via actua
permitting said link to drop off of the rear end of said
link.
tion of said operating bar to a position wherein said door
5. A sliding door operating mechanism, comprising, a
sliding door, an operating bar mounted longitudinally with
said door for opening and closing said door, a coupling
is in full open position and said coupling link ready to
drop off of the rear end of said stationary guide rail, and
at such point swing said operating bar to move slightly
link connected to said door, a pair of spaced opposed
pawls comprising a front and rear pawl slidably mounted
for vertical reciprocation within a housing, said housing
in a reverse direction to break all frictional contact be
an obstruction which prevents it from continued opening
or closing movement in response to movement of the op
rear and front edges of said door come into alignment
with said hollow lock post in door closed and door open
means for moving said coupling link onto said stationary
or open position, means for guiding the lower edge of
tween said coupling link and said front pawl and permit
ting said coupling link to freely drop off the rear end
of said guide rail.
mounted on said operating bar and means associated with
8. A sliding door locking mechanism, comprising, a
said housing frictionally engaging said operating bar at
a predetermined pressure and adapted to break away 45 sliding door, a hollow lock post, means supporting said
sliding door for movement wherein portions adjacent the
from said operating bar in the event said door engages
positions respectively, a lock bolt adapted to project
erating bar, said pawls adapted to operatively engage
said link, a stationary guide rail having a length whereby 50 through said hollow post by means of openings provided
in said post, said door being provided with suitable spaced
said coupling link drops off of the front or rear end of
openings to permit said lock bolt to pass therethrough
said stationary guide rail when said door reaches a com
for the purpose of locking said door in either a closed
pletely closed or completely open position respectively,
guide rail for engagement between said spaced pawls, 55 said door, said guide means including a ?rst U-shaped
channel member rigidly secured to said hollow lock post
said front pawl frictionally engaging said link and push-'
and extending longitudinally along the bottom of said
ing it along said guide rail during a door opening opera
tion in response to movement of said operating bar, a
lever projecting from said front pawl, means adapted to
door, a second U-shaped channel member integrally se
cured to the ‘bottom edge of said door and extending lon
gitudinally along said door, said second U-shaped mem
engage said lever when said coupling link reaches the rear 60 her being disposed opposite to said ?rst U-shaped member
end of said stationary guide rail and causing said front
pawl to be pivoted upwardly and thereby positively break
and adapted to interlock with said ?rst U-shaped member,
said ?rst U-shaped member having an opening provided
frictional contact with said link and permitting said link
therein to permit said lock bolt to extend therethrough,
drop off of the rear end of said guide rail and said front
65 said openings in said door being provided in said second
pawl to overtravel said coupling link.
U-shaped member and adapted to align with said opening
6. A sliding door operating and locking mechanism,
in said first 'U-shaped member when said door is in its
comprising, a sliding door, ‘an operating bar mounted 1on
extreme open or its extreme closed position whereby said
gitudinally with the door for moving said door, drive
means for moving said operating bar, connecting means
associated with said door adapted to be coupled with said
operating bar, a slide bare for said door for moving said
connecting means into engagement with said operating
lock bolt may pass through said aligned opening and
secure said door in either an open or closed position.
9. A sliding door locking mechanism, comprising, a
sliding door, a hollow lock post, means supporting said
sliding door for movement wherein portions adjacent the
bar, a control bar, means selectively connecting said con
rear and front edges of said door come into alignment
trol 'bar to said slide bar, a control lever for reciprocating 75 with said hollow lock post in door closed and door open
3,082,847
19
20
positions respectively, a lock bolt adapted to project
through said hollow post by means of openings provided
in said post, said door being provided with suitable spaced
openings to permit said lock bolt to pass therethrough
References Cited in the ?le of this patent
UNITED STATES PATENTS
' 1,966,422
2,287,423
2,313,416
2,686,577
2,792,917
for the purpose of locking said door in either a closed
or open position, means to actuate said lock bolt into a
locking or unlocking position simultaneously with said
door reaching a completely open or completely closed
position, and means for locking said door at the top
thereof.
'
10
2,841,252
2,899,027
2,961,076
Young _______________ __ July 10, 1934
Field ________________ __ June 23, 1942
Young _______________ __ Mar. 9, 1943
Hoppenjans __________ __ Aug. 17, 1954
Smith et al. __________ __ May 21, 1957
Adam ________________ __ July 1, 1958
Adam _______________ __ Aug. 11, 1959
White et a1 ___________ __ Nov. 22, 1960
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