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Патент USA US3100127

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Aug. 6, 1963
w. F. KNAPP
3,100,122
MECHANICAL DooR sToP MEANS
A? TTOE/VEYS
fire
1
3,100,122
3,100,122
Patented Aug. 6, 1963
2
FIGURE 2 is a bottom plan View of the door stop or
NECHANICAL DUUR STOP MEANS
Wiliiam F. Knapp, Hanghton, La.
check, FIGURE 2 `being taken substantially upon the
horizontal plane of line 2~2 of FIGURE l, looking Iin
(90S Wanda Drive, Bossier City, La.)
Filed Oct. 7, 196i), Ser. No. 61,243
the direction of lthe arrows;
FIGURE 3 is a detail cross-sectional view of the door
10 Claims. (Cl. 292-266)
stop or check, FIGURE 3 being taken substantially upon
This invention relates to the general field of limiting
lthe pivotal movement of one element with respect to a
the line 3_3 of FIGURE 2, looking in the direction of
the arrows;
FIGURE 4 is a detail .cross-sectional View of the door
ñxed stationary member and, more speciñcally, the in 10 stop or check illustrated in FIGURE l, FIGURE 4 being
stant invention pertains to the provision of means for
taken substantially on the vertical plane of line 4~4 of
locking a door at any degree of opening or closing with
FIGURE 3, looking in the direction of the arrows;
respect to its ‘associated iixed or stationary door jamb.
FIGURE 5 is a fragmentary det-ail cross-sectional view
Another object of this invention is to provide improved
of means operable to hold the door latch or door stop
means for securing `a door or other closure member in
means in inoperative position, FIGURE 5 being taken
a closed position or at any desired »angle with respect to
substantially on the horizontal plane of line 5_5 of
a door jamb when open.
FIGURE l, looking in the direction of the arrows;
Still another object of this invention is to provide a
FIGURE 6 illustrates the adaptation of the instant
device of the type brieñy described above which is oper
invention toa conventional house door;
able in conjunction with conventional door handle-s.
20
FIGURE 7 is an enlarged Idetail cross-sectional view
A further object of this invention is to provide a `door
check or devices for retaining a door or gate in any
desired open position, the door check being operable
automatically from a door latch yor door knob to permit
the door to `freely land easily swing from the door jamb 25
while the door check means are rendered inoperable.
A further object of this invention is to provide means
for securing »swinging doors, window sashes, and the like,
in a closed position or at any angle with respect to a
of the door and door stop or latch illustrated in FIGURE
6, FIGURE 7 being taken substantially on the horizon-tal
plane of line 7-7 of FIGURE 6, looking in the direction
of the arrows;
FIGURE 8 is an enlarged end elevational View of -the
door locking or lat-ching mechanism lshown in FIGURE
6, FIGURE 8 being taken substantially on the vertical
plane of line 8-8 of FIGURE 7, looking in the direction
of the arrows; and
door jamb when pivoted to an open position, and latching 30
FIGURE 9 is a side elevational view partly broken
the securing means 'against casual displacement when the
away, FIGURE 9 illustrating a second embodiment of
door or window sash, or similar device, is moved to an
this invention.
open position.
Referring now more specifically to FIGURES l to 5,
Another object of this invention is to provide a ine
inclusive, reference numeral ‘10 designates, in general, a
chanical door stop which will obviate the above-noted 35 door stop or check constructed in accordance 'with the
disadvantages inherent in =the constructions of prior art
teachings of this invention. The door stop 10 is shown
devices, and wherein the door check or stop will hold
in conjunction with the conventional automobile door 12
a door or other closure member from `opening or closing
and is disposed between the inner and outer door panels
at any degree of its arc of movement.
14, 16, respectively. Means (not shown) of a conven
Still another >object of this invention is to provide a 40 tional type secure one end of the door stop 10 tot -the
mechanical door stop or check which may be automat
upright end lwall 1S of vthe door 12, the end wall '1S
ically operated by the turning of a handle; that is, when
being provided with a substantially rectangular opening
the handle is turned to eiïect an opening of a door or
20 to serve a purpose to be described infra.
The end
closure member, the operation of the handle automat
wall 18 is normally disposed in confined relation relative
ically releases the locking mechanism to permit the door 45 to .a door jamb 22 when the door 12 is in its normally
or closure member to be pivoted to an open position,
closed position.
and when the handle is in its neutral or released position,
the door or closure member becomes automatically
In most conventional automobiles, handle or button
means are utilized to operate a normally horizontally
in -a chase or mortise in the door or between the side
gated strip member 26 supported for reciprocation adja
locked.
reciprocating door locking bolt. The arrangements are
It is still another object of this invention to provide 50 many and do not, per se, constitute a part of this inven
a mechanical door stop which may be readily attached
tion. However, and for the purpose of illustration of
to the conventional doors of automobiles, houses, cabi
the present invention, reference numeral 24 designates a
nets, etcetera.
conventional door handle which is depressible to actuate
This invention contemplates, las la still -further object
a door bolt (not shown), through suitable mechanisms,
thereof, the provision of a door stop or check wherein 55 to move the bolt to its unlocked position. Connected
the mechanism for operating the same may be placed
to this mechanism or to the ‘bolt is one end of an elon
walls thereof whereby the motif or design on either side
cent its other end on a pin 28 which extends transversely
of the `door is not affected.
between the door panels 14, 16 and engages within an
This invention has, as -another object thereof, the pro 60 elongated longitudinally-extending slot 30. The underside
vision of door ystop or door check means of the type
of the strip member 26 is recessed to- provide a shoulder
referred to supra, wherein the means is non-complex in
32 extending transversely thereof and a longitudinally
construction and assembly, inexpensive to manufacture,
extending tongue 34. Thu-s, as the handle 24 is depressed
and durable in use.
to unlock the ‘door 12, the strip member 26 is moved to
Other and further objects of the instant invention will 65 the right, as viewed in FIGURE l. Supported on a pin
become more evident from a consideration of the fol
36 which extends transversely between the panels 14, 16
lowing specification when read in conjunction with the
(see FIGURES l and 5) is a bell crank lever 38 and a
annexed drawings, in which:
normally depending arm ‘i0 on which is secured 'a roller
FIGURE l is a fragmentary -side elevation-al view of
42. The roller 42 engages the shoulder 32 beneath the
a `conventional automobile body including a door par 70 tongue 34 and is constantly biased «for movement in a
tially broken away :and illustrating this invention as in
corporated therein;
clockwise direction, reference again being made to FIG
URE l, -by virtue of means to -be described below, where
3,100,122
3
free ends thereof slidably received Within the bores 98,
100, respectively, and upon certain circumstances, the
guide pins are capable of being moved or extended into
the guide pockets 82, 84 when the ratchet bar 106 is
moved in a direction toward the bight member 92. Inter
posed between the bight member 92 and the adjacent side
of the ratchet bar 106 are a pair of helicoidal springs 114,
116, one end of the spring 114 being received within
odset from the arm 40. As is seen in FIGURES 1 and
the spring-keeper recess 102 while the other spring 116
5, means are provided to serve a purpose to be described
which cooperate with the free end of the arm 44 to pre 10 «has one of its ends received within the spring-keeper
recess 104. As is clearly seen in the drawings, the other
vent the bel-l crank lever 38 yfrom pivoting clockwise under
ends of the springs 114, 116 engage against the ratchet
the influence of said biasing means when the strip member
bar 106 and constantly bias the ratchet bar 106 for move
26 is moved to the left, reference being made to FIG
ment in a direction away from the bight member 92.
URE 1, that is, in a direction away from the roller 42.
The ratchet bar 166 is provided with a pair of bosses
The pivotal lock comprises a journal 46 secured by means 15
118 which project from that side thereof oppositely dis
4S to the inner door panel 14, the journal 46 having
posed with respect to the pins 112. As is seen in the
pivotally mounted therein a shaft 59. One end of the
drawings, the bosses 11S are disposed immediately ad
shaft S0 terminates in `a handle 52 which extends through
jacent each end of the ratchet bar 106.
an opening (not shown) formed in the panel» 14, and the
A shaft 120 (see FIGURES 2, 3 and 4) extends through
other end of the shaft 50 has rigidly secured thereto a disc 20
the end wall 58 and the bight `62, the shaft 1.20 traversing
54. The connection between the disc 54 and the »shaft
the slots 64, 66, and having an end received within the
50 is olf-center, whereby rotation of the shaft 50' effects
socket 78 for-med in the end Wall 60; Mounted on the
a swinging movement of the disc 54. The relationship be
by the roller 42 maintains constant engagement against
its adjacent shoulder 32. It will be understood, of course,
that lwith the shifting movement of the strip member 26 to
the right, the bell crank lever 38 pivots counterclock
Wise against the force exerted by the aforementioned bias
ing means.
The other arm 44 of the bell 'crank lever 38 is laterally
shaft 120 are the hubs 122 of a pair of levers 124, the
tween the disc 54 and the free end of the arm 44 is such
that when the `bell crank lever 38 is rotated in a counter 25 hubs 122 `being disposed `within the slots 64, 66 and are
clockwise direction the ydisc 54 may be moved by manual
manipulation of the handle 52 into the downward path
ñxedly secured to the shaft 120 for rotation therewith by
of movement of the free end of the arm 44 thereby effec
received Within the slots 72, '74, and the `free ends thereof
constantly engage against and r-ide on the rounded bosses
118.
The other end of the shaft 12% terminates in a crank
arm 128, and the construction is such (reference being
means of set screws 126.
tively preventing and locking the bell crank lever from
moving in a clockwise direction. The purpose of these
locking means will become more apparent as this specifica
tion progresses.
The door check or stop proper comprises a channel
The levers 124 are pivotally
made to FIGURE 4) that when the crank arm 128 is ro
tated in a counterclockwise direction, the shaft 120` will
longitudinally-spaced and confronting end walls 5S, 60 35 rotate in the same direction causing the free end of the
shaped main body portion S6 having oppositely-disposed
integrally connected together by a bight wall 62. The
bight Wall 62 adjacent each of the end walls 53, 60 is
provided With slots 64, 66, respectively, the end walls 58,
60 being slotted at 68, 70, respectively, the slots 63, 70
40
being disposed in alignment, one with the other.
The end walls 58, 60 are slotted at 72, 74,'respectively,
the slots 72, 74 extending perpendicular to the slots 68,
70 and opening, at their inner ends, into the slots 64, 66,
lever 124- to pivot and, through its engagement with the
bosses 118, force the ratchet -bar 106 to move inwardly
toward the bight 92 against the tension of the springs
114-, 116.
Slida-bly mounted on the inverted substantially U-shaped
guide mem-ber 86 and encompassing the ratchet ybar 106 is
a substantially rectangular slide member 130' having in
ternal teeth 132 adapted to mesh with the teeth 1%8 of
the ratchet Ibar 106 -in various adjusted positions relative
respectively. To serve a purpose to be described below,
the bight wall 62 is lformed With the longitudinally-ex 45 thereto. It will be understood from «the foregoing de
scription that when the crank arm 128 is pivoted in a
tending bore 76 which terminates in a socket 78 in the
counterclockwise direction, the teeth 108 will become
end wall 60, and as seen in FIGURE 2 of the drawings, the
disengaged 4from the teeth 132, thereby permitting the
bore '76 continues »at 80 through the end wall 5S.
slide member 130 to move longitudinally of the ‘guide
rPhe end members 58, 60 are provided, respectively,
with substantially cylindrical downwardly-opening guide
pockets 82, 84.
j Referring now more speciñcally'to FIGURE 4, refer
ence numeral 86 denotes, in general, an inverted sub
stantially U-shaped guide member having the opposed
50 member 86.
Rotation of the crank arm 12S» in the re
verse, or clockwise direction, will cause engagement of
the teeth 132 with the teeth 108, thereby locking the
slide member l13:0 in a given position.
A lever 134 has one of its ends pivotally secured to the
ends thereof disposed within the slots 68, 70, the guide 55 slide member 130 by means of a screw 136 and washer
138. The other end of the lever 134 is pivotally con
member 86 including a pair of oppositely-disposed, spaced
and parallel depending arms 90 connected along one of
their adjacent longitudinally-extending sides by means of
a bight member 92. The arms 88, 90, adjacent each end
nected at 140 by means of a rivet, or other suitable con
isl properly located, to align with the guide pockets 82,
or any other conventional means, is utilized to connect
nection, to a tongue 142 which projects outwardly from
the door jamb 22 through an opening 144, the tongue
of the guide member 86 are provided with a pair of con 60 142 forming an integral part of a bracket plate 146, the
latter being ?ixedly secured to the door jamb 22 yby means
fronting notched-out portions 94, 96, the function of which
of rivets `148.will be made app arent below.
One end of a lever 150- is pivotally connected with
The 'bright member 92, also adjacent each end thereof,
the free end of the crank arm 12S and is retained there
is ¿formed with transversely-extending bores or openings
98, 100 which are adapted, when the guide member 36 65 on -b-y means of a cotter pin 152. The pivot pin 154,
the other end of the lever 150 :to the ybell crank lever
84. The bight member 92 has, spaced inwardly trom the
arm 44 adjacent the outer end thereof. As is seen in
bores 98, 100, a pair of recessed spring-keeper recesses
FIGURE 1, the lever 150‘ passes behind the tongue 34,
102, 104.
Disposed for -reciprocation within the guide member S6 70 and it is for this reason that the arm 44 is oifset with
respect to the arm 40.
is an elongated substantially rectangular ratchet bar 106
Axial displacement of the ratchet `bar 106 is prevented
having inclined and downwardly-extending ratchet teeth
108 extending substantially throughout its length. Pro
by means of ñller blocks 156, 158 which are disposed
jecting upwardly from each end of the ratchet bar 106 are
Within the slots 68, 70, adjacent each end of the ratchet
a pair of guide pins 110, 112 which normally have the
bar 106, and the iiller blocks are held in their respec
5
3,100,122
6
tive positions by means of screws 161) which extend there
through and through the end walls 58, ‘60.
The ‘assembly of the door stop or check 16 is com
inentia, tend ‘to effect an automatic closing of the door 12.
Depending upon circumstances, the opposed vertical
ends of the slide member 1311 are provided with threaded
pleted by providing inverted, substantially U-shaped shock
screw openings 164, 166, to optionally receive therein
screws 136. Thus, the lever 134- may extend longi
absorbers 162 which are ñxedly secured to the end walls
58, 60 and which embrace the inverted, substantially
tudinally of the underside of the main body portion 56
or, the door stop 1t)` may be inverted from its position
U-shaped guide member 86.
Having described the ñrst embodiment of this inven
shown in FIGURES l and 3.
tion in detail, it is `believed that the operation thereof is
As has been set forth above, means are provided for
self-evident. However, and brieñy summarizing the same, 10 rendering .the door stop or latching mechanism in an in
it will be understood that when the handle 21t- is depressed,
operative position. To this end, the operator need but
the strip member 26 is caused to move laterally to the
yto depress «the handle 24- to cause the arm 44 to pivot up
right, as viewed in FIGURE l of the drawings. Move
ment of the strip member 25 causes pivotal movement of
wardly. Thereafter, the handle 512 is pivoted from the
dotted-line position shown in FIGURE 5 to its full-line
position illustrated therein, whereby the disc 5ft- moves
the bell crank lever 3S in a counterclockwise direction,
and in so moving, the lever 1S@ is raised. Since the
lower end of the lever 154)> is connected to the crank arm
128, the shaft 129 will be caused to rotate in a counter
under the free end of the arm 44.
In so moving, the
lever is pulled upwardly causing either of the bars 1116,
106’ to move out ‘of engagement with the slide members
clockwise direction, as viewed in FIGURE 4, thereby
1311, 13th’. The door 112 is, thus, free to rotatie about
causing the lever 124- to pivot in the same direction. 20 its pivotal axis without hindrance.
Since the free ends of the levers 124 engage yagainst the
The modification of this invention, as illustrated in
bosses 118 of the ratchet bar 106, the ratchet bar is
FIGURE 9 of the dnawings, is identical with respect to
forced inwardly toward the 'bight 92 of the inverted U
the first embodiment with but minor changes formed
shaped guide member $6. This occurs against the tension
therein. Consequently, elements shown in FIGURE 9
of :the helicoidal springs 114i-, 116. As the ratchet bar 25 having counterparts in the first embodiment may be dis
105 moves inwardly, its teeth 1013 are disengaged from
tinguished therefrom through the addition of prime marks
the teeth 132 formed on the slide member 13d', thereby
to the elements in common.
freeing the same for sliding movement longitudinally of
the guide member *86.
lIn the embodiment of the invention shown in FIGURE
9, the bar 1111il is provided with la plurality of depending
As soon as the ratchet bar 106 has been disengaged 30 rack gear teeth 1’70` which are adapted to mesh with rack
rom the slide member 136, the operator may now exert
gear teeth 172 formed on the slide member 130’. With
force on the door 12 in a direction such as to cause the
this construction the door 12 of the vehicle is positively
locked in its fully-open, fully-closed, or an intermediate
pivot points (not shown) in the conventional manner, the
open position, tand the ratchet feature, as described above,
lever 134 will also pivot and in so pivoting will cause the 35 is omitted. In this last case, the door handle 24 must
slide member 130 to move longitudinally of the guide
be op-enated each time the door 12 is moved to its closed
member 86.
position, or to any open position. In al1 other respects
The `degree to which the ‘door 12 is opened will deter
the inventions are identical.
mine the relative position of the slide member 130 with
FIGURES 6 to 8, inclusive, illustrate an application
respect to the ‘guide member 86. When the 'door is in its 40 of either of these two embodiments described above to
fully-opened position, the slide member will abut against
a conventional door. The door is herein designated by
the resilient shock absorber 166 at the extreme right
the reference numeral 2011y and is hingedly connected at
hand side of FIGURE 3 of the drawings, or if it should
202 in the conventional rnanner to a door jamb 204. The
be desired to open the door 12 only partially, the slide
door 201) includes the usual door stiles 206 between which
member 131i will resume a position intermediate the two 45 extend the usual door rails r2418. The latter are disposed
resilient shock absorbers 162 and 166.
in laterally-spaced relation and between the same is
The operator, upon opening the door 12 to the desired
located either of the above-described door checks or stops
degree, then releases the handle 24, whereupon the same
10, 10’. Any conventional means may be employed for
returns to its original position. The return of the handle
securing the door stop 10' to one of the rails 203.
24 `draws with it the strip member 26.
50
In ‘this ‘application of the invention, the strip member
It must now be remembered that the helicoidal springs
134» is pivotally connected at 210‘ Ito an eye screw 212
same to open. As the `door 12 pivots about its respective
114, 116 are so positioned as to bias the ratchet bar 106
in a direction away from the bight 92 and toward the
teeth 132 of the slide member 130i. Thus, when the
ratchet bar -teeth 168 eifect engagement with the teeth
132 of the slide member 131) a force is exerted upon the
levers 124 causing them to pivot in the reverse, or clock
wise direction. Clockwise movement of the levers 124
introduces the same pivotal movement to the shaft 120
and this, in turn, rotates the crank arm 123 in such a
direction as to draw downwardly the lever 150. Since
the lever 1511r is pivotally connected to the bell crank
lever arm 44, the bell crank lever 38 will pivot in a clock
wise direction and will maintain contact of the roller 42
with the shoulder 32 of the strip member 26.
With the teeth 10S of the ratchet member 1116 engaged
within the teeth 132 of Äthe slide member 131i, when the
latter has been moved to an adjusted position, funther out
ward movement of the door 12 is prevented. However,
the operator may, when so desired, pull «the door 12 to
ñxedly secured within the door jamb `Ztl/1J.
The shaft 120 terminates, in this application, in a
lever 214 disposed substantially at right angles to the
55 shaft 120 and the free end thereof lterminates in an angular
offset portion 216 substantially ñat in configuration. The
liat end 216` normally enga-ges >against the low side 217
of a cam, generally designated «at 21S. The cam 218 is
fixedly secured to one end of an elongated `shaft y221B
60 which extends between the rails 208 and is ñxedly secured
thereto and supported therefrom by means of journals
222.
Reference numerals 224, l2,26 denote the high sides of
the cam 2118, `and it will be understood that as the slnaft
65 220 is rotated to bring one or the other thereof into en
gagement with the free end 216 of the lever 214, the co
action therebetween will cause the shaft 121) to rotate in
a counterclockwise direction to effect movement of the
ratchet bar 106 or the rack gear bar 106’ toward the
70 bright 92 of the guide member S6. They door Ztl@ is,
its closed posit-ion without funther actuation of the handle
24. This, is, of course, in accordance with the con
ventional operation of ratchet mechanisms.
Lt should also be noted at this point «that any sudden
forward movement of the vehicle will, under the force of 75
thus, free .to pivot from the hull-line position shown in
FIGURE 7 to its dotted-line position las illustrated therein.
Means are provided for leffecting the rotation of the
shaft 220 from either side of »the door 2601 These means
comprise d‘oorknobs 228, 239i connected for rotation, one
3,100,122
. 7
8
_
teeth formed ion said sliding lblock member, said means
with the other, by means of a shaft 232, the shaft ,232
being connected with the conventional door-bolt actuat
ing mechanism 234 which forms no part of the instant
comprising -an elongated shaft extending longitudinally
of said guide member and rotatably supported thereon,
invention.
one end 'of said shaft terminating in a crank arm, said
'
Fixedly secured to «the shaft 232 for rotation therewith
is la bevel gear 236 which meshes with a second bevel gear
238 rigidly secured to the shaft 220. Thus, as either
of the knobs 228, 230 isV rotated to elîect a withdrawal
of the door bolt 240 from the door jamb i242, the shaft
220 is caused to rotate, and in so rotating to eiîect clock
wise movement of the lever 2M- whereby the door
stop or latching mechanisms are free to move relative to
one another. Rotation of the shaft 22d in the opposite
direction will, of course, cause the slide member 130, or
130’ to be Iengaged by the teeth carried on »the bar 1%,
106’ to hold ythe door 200 in any adjusted degree of open
shaft carrying a pair of levers `íìxedly secured thereto
for rotation therewith and positioned on said shaft at
opposite ends of said guide member, and said levers being
adapted ’to rotate into Contact with the remotely-disposed
ends of said ratchet bar upon rotation of said shatìt to
move said ratchet bar out of contact with said sliding
block member.
3. A door stop as defined in claim 2, including a mech
anism connecting said crank arm with a handle-operated
door latch to elîect engagement and disengagement of
said ratchet bar with said ratchet teeth formed on said
sliding block member.
4. A door stop as defined in claim 3, wherein said
mechanism includes a vertically-extending member hav
Having described and illustrated in detail, several em
ing its lower end pivotally connected to said crank arm
bodiments of -this invention, it is to be «understood that
fthe same are offered merely by Way of example, and 20 and its upper end pivotally connected 4to one arm of a
bell crank lever incorporated in said mechanism and in
that this invention is 'to be limited only by the scope of
ing desired by the operator.
the appended claims.
What is claimed is:
cluding a horizontallyeslidable strip member connecting the
other arm of said bell crank lever to lthe handle of said
door latch.
5. A door stop ‘las deñn'ed in claim 4, including a mech
to a door jamb, comprising ian elongated guide member 25
anism connecting said crank arm with a rotatable handle
adapted to be attached to said door in the manner ex
operated door latch adapted to transmit motion to said
tending normally to said door jamb when said door is in
crank arm, said mechanism including a vertically-extend
its normally closed position, a sliding block member
ing pulling member having its lower end pivotally con
slidably mounted on said guide member, a lever having
one of its 4ends pivotally connected to said slid-ing block 30 nected to said crank arm and its upper end connected to
said one arm of said bell crank lever incorporated in said
member and having its other end adapted to be pivotally
mechanism, and including a horizontally-slidable strip
connected to said door jamb `at a position olîset from the
member connecting the iother `arm of said bell crank lever
axis of rotation of said door on its hinges, means for
l. A door stop for use on a door adapted to be hinged
and said door latch, whereby operation tof said pulling
locking said sliding block member ion said guide member
member in la vertical direction will effect the engagement
at any position of travel of said sliding block member and
or disengagement of said ratchet bar teeth with said
comprising a mechanism connected to manually-operable
ratchet teeth formed on said sliding member.
door latch means, said mechanism including a reciprocable
6. A door stop as defined in claim 5, and means for
strip member positioned to slide in a path offset from,
but parallel to said guide member, said strip member 40 locking said ratchet bar out of contact with the ratchet
teeth formed on said sliding member.
terminating in a shoulder, a bell crank lever pivotally
7. A door stop comprising `an elongated substantially
mounted on said door and having one of its arms ter
channel-shaped member having a main body portion in~
minating in a roller adapted to Contact said shoulder of
cluding a bight from the ends of which project a pair of
said strip member, land a vertically-extending actuating
end walls, said main body portion Abeing mounted on
member connected to the other arm of said bell crank
lever and connected ‘to said means ior loclsing said slid 45 said door with an end wall 4facing the door jamb from
ing block member on said guide member, whereby said
means for locking said sliding block member on said
guide member may be operated by said manually-oper
which the door is suspended, a U-shaped guide member
having its ends ñxedly secured to said end walls and dis
posed in spaced relation relative to said bight, a bar
mounted for reciprocation Within said U-shaped guide
2.. A door stop comprising an elongated guide member 50 member, means disposed between said U-shaped member
and said bar constantly biasing said bar for movement
for attachment to `a hinged door, said guide member being
away from said U-shaped member, lever means pivotally
disposed substantially normally to the door jamb to which
supported on said main `body portion and engaging said
said door is hinged, a sliding block member slidably
able door latch means.
mounted on said guide member, a lever having one of its
bar to eiîect movement :of said bar inwardly of said U
ends pivotally connected to said sliding block member 55 shaped member when said lever means are pivoted in one
direction, said bar having teeth formed thereon facing
and having its other end pivotally connected to said door
outwardly of said U-shaped member, a substantially rec
jarnb ata position odset from the axis of rotation or" said
tangular sliding block member slidably mounted on said
door on its hinges, means for locking said sliding block
U-shaped member and engaging around said bar, said
member against said guide member at any position of
travel of said sliding block member on said guide mem 60 block member having `teeth formed thereon facing said
ber, said means comprising a ratchet bar mounted for
teeth formed on said bar and adapted to mesh therewith,
a lever pivoltally connected to said block and said jamb,
reciprocation on said guide member, said ratchet bar
and means connected with said lever and a door handle
having a pin projecting laterally from each end thereof,
for said door to effect disengagement oí' said teeth formed
said guide member having pockets Vformed therein to
slidably receive said pins, said ratchet b‘ar having ratchet 65 on said bar and block.
8. A door stop as deñned in claim 7, wherein said teeth
teeth projecting therefrom in a direction opposite said
pins, said sliding block member having formed thereon
-formed on said bar and said Iblock are of the ratchet type.
ratchet teeth adapted to mesh with said ratchet teeth
9. A door stop as deiined in @claim 7, wherein said teeth
formed on said guide member, resilient means interposed
formed on said bar and said block are of the rack gear
between said ratchet bar and said guide member, said 70 type.
resilient means constantly tending to urge said ratchet bar
10. In combination with `a door-bolt actuating mecha
teeth into contact with said teeth formed on said sliding
nism, a strip member having «an end thereof ‘connected
block member, and means for moving said ratchet bar in
with said mechanism and movable therewith as said mech
opposition to said resilient means to effect disengagement
anism
moves said door-bolt to its retracted position, said
of said ratchet teeth of said ratchet bar from said ratchet 75
3,100,122
strip member being supported on said door for reciproca
tion thereon, a lbell crank lever pivotally mounted on said
door «and having an arm thereof disposed in the path of
movement of said strip member, an elongated lever pivot
ally connected to the other arm of said bell crank lever
adjacent the -free end thereof, a door stop comprising an
elongated substantially channel-shaped main body por
tion including ya bight from the ends olf which project a
pair of laterally-spaced `and substantially parallel end
10
said -levers having `one of their respective ends tixedly se
cured to said shaft for rotation therewith and their re
spective other ends constantly engaging the opposed ends
of said bar, said shaft, upon movement in one direction,
causing said levers to turn and force said bar inwardly
within said U-shaped guide member, a sliding lblock mem
ber mounted for reciprocation on said U-shaped guide
mem-ber, a lever having one of its ends pivotally connected
to said sliding block member and its other end connected
walls, said main body portion being mounted on said door 10 to said jamb, and interlocking means on said -bar and
with an end wall facing the door jamb from which said
said sliding block engageable to prevent movement of
door is suspended, `a substantially U-shaped guide mem
said door when said bar is moved its maximum distance
ber having its opposed ends ñxedly secured to said end
away from said U-shaped guide member.
walls and disposed in laterally-spaced relation relative to
said bight, ian elongated -bar mounted for reciprocation 15
References Cited in the ñle of this patent
within said U-shaped member, means disposed between
UNITED STATES PATENTS
said U-shaped guide member rand said Ibar constantly
biasing said bar for movement away from said U-shaped
guide member, la shaft extending through said end walls
and said bight and being rotatably mounted therein, said 20
shaft having one of its ends terminating in a crank arm,
means pivotally connecting said crank arm with the other
end of said bell-'crank lever whereby movement of said
bell-crank lever will force said crank arm to rotate and
consequently said shaft, a lever `for each end of said bar, 25
411,557
942,310
1,738,381
Scarborough __________ __ Sept. 24, 1889
Daly _________________ __ Dec. 7, 1909
237,048
Germany ___________ __ July 19, 1911
16,856
Great Britain ________________ __ 1899
Matthews ____________ __ De'c. 3, 1929
FOREIGN PATENTS
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