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Патент USA US3091830

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June 4, 1963
T. c. SODDY
3,091,820
DOOR LATCHING ARRANGEMENTS
Filed Aug. 16, 1961
4 Sheets-Sheet 1
f‘
June 4, 1963
T. c. SODDY
3,091,820
DOOR LATCHING ARRANGEMENTS
Filed Aug. 16, 1961
lg Sheets-Sheet 3
W
c? 744)
6% M26 ¢
June 4, 1963
'r. c. SODDY
3,091,820
DOOR LATCHING ARRANGEMENTS
Filed Aug. 16, 1961
4 Sheets-Sheet 4
FIGS.
FIG.6.
//
C”.
United
sates
atent
ice
3-,hiih820
Patented June 4, 1963
2
3,091,820
DOOR LATCHING ARRANGEMENTS
Thomas C. Soddy, Downers Grove, Ill., asslgnor to Amer
ican Seal-Kap Corporation of Delaware, New York,
N.Y., a corporation of Delaware
Filed Aug. 16, 1961, Ser. No. 137,432
19 Claims. (Cl. 20-23)
The invention relates to doors for railway freight cars
mounted outwardly of the car wall and slidable therealong
on track 7 to a position clear of the opening. Main door
5 is latched in closed position by a lift handle 9, which
is vertically slidably mounted on main door 5 by guide
brackets 11 and 13, with its lower end adapted for abut
ting engagement with stop 15 on track 7. Additional
locking means 16 of conventional type is provided for re
taining the main door in locked position.
The remainder of door opening 3 is closed by an auxil
and consists particularly in improved latching arrange 10
iary ?ush door 17, the right hand edge of which underlies
ments for combination doors comprising a main sliding
door and an auxiliary ?ush door.
In cars provided with combination doors, part of the
door opening is closed by the auxiliary ?ush door, which,
the left hand edge of main door 5. Door 17 comprises a
rectangular ‘frame having upright members 19‘ and 21 at
each side, outer metal sheathing 23, and interior wood
when closed, is positioned in that part of the door opening 15 lining 25. Left hand frame member 19 mounts a hollow
rubber gasket 27 on its inside surface for sealing engage
and is opened by moving it outwardly of the car wall and
ment with the inner ?ange of the adjacent Z-section door
sliding it along the car wall until it clears the opening.
post 29 when the auxiliary door 17 is in the closed posi
Outward movement of the auxiliary door is usually init1
tion, with its exterior substantially ?ush with the car side
ated by rotation of one or more vertical shafts journaled
wall
1. Right hand door frame member ‘21 mounts a ver~
on the auxiliary door and actuated by handle levers piv 20
tical outwardly extending channel member 31 adapted to
oted to the shafts to swing parallel to the auxiliary door
underlie the adjacent edge of the main door and close the
when the latter is closed. The main door is slidably
gap between the outer surface of auxiliary door '17 and
mounted outside of the car side wall, to close the remain—
main door 5.
der of the door opening, and one of its vertical edges over
laps the adjacent vertical edge of the auxiliary door when 25 For properly positioning main door 5 relative to auxil~
iary door 17 when both doors are closed, right hand frame
the doors are closed. To ensure that the edge of the aux
member 21 of the auxiliary door also mounts throughout
iliary door, which the main door overlaps when closed,
its full height a vertically disposed stop member 32 of
is secured against outward movement, the auxiliary door
generally W-shaped cross section, as ‘best seen in FIG. 3,
is frequently provided with a lock comprising a vertical
one of its intermediate webs being perpendicular to the
bolt slidably mounted on the auxiliary door near the over
plane of the auxiliary door and in abutting relation with
lapped edge and receivable in a registering pocket on the
the protruding ?ange of the Z-section member which forms
side wall below the door. Door structures are often dam
the
edge of the main door when the main door is fully
aged when an attempt is made to ‘force the auxiliarydoor
closed so as to prevent movement of the latter past the
open by manipulation of the handle levers mentioned
above without previously having opened the main door a 35 closed position. The outer web and flange of stop mem
ber 32 are adapted to overlappingly nest with the Z-sec
su?‘icient distance to clear the overlapped portion of the
tion edge of the main door and thus provide weather pro
auxiliary door and/ or without releasing the edge lock bolt.
tection for the main door-auxiliary door overlap.
Also, if the edge lock is released before the main door has
Auxiliary door 17 is supported, for movement inwardly
been opened su?iciently to clear the overlapped portion
of the auxiliary door and the auxiliary door is moved out 40 and outwardly of opening 3 and lengthwise of the car
from and to its closed position, by track 33- mounted on
wardly, its overlapped portion will engage the overlap
the side walls below the door opening 3, and elongated car
ping portion of the main door with probable damage to
riage 35 carried by the track and pivotally mounting crank
the structure.
It is a main object of the invention to provide means
for preventing outward movement of the portion of an
auxiliary door overlapped by the main door while the
doors are in lapping relation with each other, i.e., until the
main door is opened sut?ciently to clear the auxiliary
door.
arms 37. At their outer ends crank arms 37 are secured
to upright stub shafts 39, which are journaled on the lower
portion of auxiliary door '17 as at 41. Additional crank
arms 42 are secured to stub shafts 43, which are jour
nalled on the upper portion of the door as at 44 and each
mounts a roller 40 engageable with guide track 45, which
It is ‘a further object to provide means for preventing 50 is mounted on side wall 1 above the door opening.
For locking auxiliary door 17 in closed position, and
the initiation of any outward movement of the auxiliary
initiating its movement to open position and completing
door from its closed position unless the main door is
its movement to closed position, a pair of vertical shafts
opened su?iciently to clear the auxiliary door.
46 are j-our-naled on the outer surface of door 17, as at
These and more detailed objects and advantages are
achieved by the structures illustrated in the accompany
ing drawings, in which:
47, and mount, at their upper and lower ends, offset lugs
48 which are received in slotted keepers ‘49 mounted on
side wall 1 above and below the door opening, when the
FIGURE 1 illustrates a portion of a car side wall and
door is closed. For rotating shafts 46 to initiate open
a combination door structure embodying a preferred form
ing and to complete closure ‘of the door, each shaft 46
of the invention.
FIGURE 2 is an enlarged view of a portion of FIG 60 is provided with a handle lever 51 pivotally mounted at
53 to swing vertically, i.e., parallel to the door when the
URE 1.
door is closed. When door 17 is locked in closed posi
FIGURE 3 is a top View corresponding to FIGURE 2.
tion,
the free ends of handle levers 51 rest in an upwardly
FIGURE 4 is an enlarged view of another form of the
open recess 55 in bracket 56 mounted on the door in
invention.
termediate shafts 46.
FIGURE 5 is an enlarged view of a third form of the
invention.
FIGURE 6 is ‘an enlarged view of a fourth form of the
invention.
In the drawings, the numeral 1 refers to a car side wall
formed with a rectangular door opening 3. The right
hand portion of opening ‘3 is closed by a main door 5
When auxiliary door 17 is closed, removal of handle
levers 51 from recess 55 is prevented by sector latch 57
which is pivoted to the door at 5? immediately above
bracket 56, so that its convex arcuate surface overlies
recess 55 ‘and mates with the concave arcu-ate upper
surface of ‘bracket 56 to prevent undesired removal of
handle levers 51 from recess 55 ‘and operation of shafts
3,091,820
3
45'. For convenience in operating latch 57, it may be
provided with ‘an operating handle 61.
Near \the vertical edge of auxiliary door 17, which ad
joins, and when closed, underlies, a portion of main door
5, a substantially upright bolt 63 is slidably mounted on
4
to the door and with its other arm pivotally connected to
bar 79, so that, until the main door is moved .to the right,
bar 79 cannot be moved, thus preventing retraction of
edge lock bolt 63 and release of handle lever sector latch
57'. When main door 5 is moved to the right a su?icient
the auxiliary door adjacent its bottom edge, by means
distance to clear the adjacent edge of the auxiliary door,
of a guide ‘bracket 65. When the door is closed, in order
to prevent outward movement of the adjacent edge of
auxiliary door 17, bolt 63 extends downwardly from the
bottom edge of auxiliary door 17 ‘and into a pocket 66 IO
lever release position and consequent upward retraction
on the car side wall below the door opening.
To prevent damage ‘to the structure because of inad
vertent attempts to force the door out of closed position,
bar 79 is free to move to the right, thus permitting clock
wise rotation of handle lever sector latch 57’ to the handle
of edge lock bolt 63 as bar 79 causes counterclockwise
rotation of bellcrank 85 about its pivot. The handle
levers can then be withdrawn from recess 55 and manip
ulated to force the auxiliary door out of its closed posi
tion without interference of the main door or edge
by use of the operating levers when the main door is
closed, and to prevent release of bolt 63 while the main 15 lock 63.
FIGURE 6 illustrates a fourth form of the invention,
door is closed, a linkage is provided to interlock opera
in which edge lock bolt 87 is pivotally connected at its
tion of sector latch 57, with operation of main door 5
upper end to one arm of bellcrank 89, which is pivoted
and bolt 63.
.
on auxiliary door at 91, to the right of its connection to
The preferred form of linkage, illustrated in FIGURES
bolt 87, so that clockwise rotation of bellcrank 89 will
1, 2 and 3, comprises a horizontal bar 67 pivotally con
cause retraction of bolt 87 from its pocket 66. The other
nected at one end to sector latch 57, and at its other end
arm of bellcrank 89 extends generally upwardly from
to one arm of a right angle bellcrank 639‘, which is pivoted
pivot Q1 and terminates in a projection 93 extending to
at 70 to auxiliary door 17 with its arms disposed 45°
and 135° from the vertical axis through its pivot 76,
the other arm of 'bellcrank 69 is connected to'a horizon
the right and abutting the adjacent edge of the main door
when the latter is closed and bolt 87 is in its downward or
tal bar 71, which is slidably mounted on the door by
locked position, thus preventing upward movement of
means of ‘bracket 73. The free end of bar 71 abuts the
edge of main door 5 when the latter’ is closed and pre—
vents counterclockwise rotation of sector latch 57 while
bolt 87.
ing handle 95.
that bolt 63 cannot be released while the main door over
lock bolt 87 until the main door is moved to the right
a distance su?icient to clear the overlapped edge of aux
iliary door 17. Conversely, the main door cannot be
Bellcrank 39 is provided with a suitable operat
Operation of this form of the invention is as follows:
main door 5 overlaps the right hand edge of auxiliary 30 When the main door is closed its left hand edge abuts
projection 93 of bellcra'nk 89, preventing clockwise rota
door 17. Intermediate its ends, bar 71 is pivotally con
tion of the bellcrank and consequent retraction of edge
nected at 75 to the upper end of edge lock bolt 63, so
laps the auxiliary door, andJalso, so that while bolt 63 is
in its locking position, sector latch 57 cannot be rotated
to release handle levers 51 and permit their manipula
tion to initiate opening movement of the auxiliary door.
Thus, by means of this linkage, neither edge lock ‘bolt
63 nor handle lever sector latch 57 can be released while
the main door is completely closed, nor can handle sec
tor latch 57 be released while edge lock bolt 63 is in
locking position.
Operation of the door from closed position is as fol
lows: Lock 16 is released, lift handle 9 is raised ‘to clear
stop 15 and main door 5 is slid to the right, clearing
the right hand edge of auxiliary door 17. This permits
bar 71 to move to the right, which in turn permits coun
closed su?iciently to overlap the adjacent edge of the
auxiliary door until bolt 87 is projected downwardly into
its pocket 66 in the car side wall. '
Substantial variations in the details of the construction
may be made without departing from the spirit of the
invention and the exclusive use of modi?cations coming
within the scope of the appended claims is contemplated.
What is claimed is:
1. Combination door structure for an upright Wall hav
ing an elongated door opening, comprising a main door
mounted on the wall for sliding movement in a plane out
ward of the wall between an open position clear of the
terclockwise rotation of sector latch 57 to release posi
door opening and a closed position located in said plane
tion and consequent retraction of bolt 63 from its pocket
and closing a portion of the door opening toward one end
65. Handle levers 51 may then ‘be lifted from their 50 thereof, a flush door mounted on the wall for outward
locked position in recess 55 and swung outwardly from
movement from a closed position within the door open
the door, to initiate opening movement of the door in
ing substantially ?ush with the wall and closing the re
the conventional manner. Conversely, this arrangement
mainder of the door opening, to a sliding position out
prevents full closing of the main door, because'of the
ward of said wall and for sliding movement on the out
projection of ‘bar 71 to the right of the auxiliary door, 55 side of said wall to, an open position clear of the door
until bolt 63 and handle lever sector latch are in their
opening, an edge of said main door overlapping the adja
locking positions.
FIGURE 4 illustrates a second form of the invention,
arranged-for clockwise rotation of sector latch 57' from
the closed to release position. This is accomplished by
repositioning bellcrank ‘69’ in the bottom quadrant of its
circle of rotation; i.e., with its arms disposed at 135° and
225° with respect to a vertical axis through its pivot.
Operation of this form of the invention is the same as the
?rst form, except that the sector latch in the second form
is rotated clockwise rather than counterclockwise to re
lease the lever handles.
_
FIGURE 5 illustrates a third form of the invention in
which a bar 79 is slidably mounted on the door by
brackets 81 and 83, with its one end connected to sector 70
latch 57’ and its other end positioned to abut the left
hand edge of the main door 5 when both doors are fully
closed‘and latch 57’ is in its locking position. In this
embodiment, edge lock bolt 63 is pivotally connected at
its upper end to one arm of bellcrank 85, pivoted at 87 75
cent edge of said flush door when both said doors are
closed, a ‘substantially upright bolt slidably mounted on
said ?ush door near the last-named edge thereof, a pocket
on the wall below said ?ush door receiving said bolt when
said ?ush door is closed, operating mechanism for said
bolt having a portion engageable with, the lastmamed
edge of said main door when said bolt is in said pocket
and operative to retain said bolt in said pocket when said
main door overlaps said flush door and'to. retract said
bolt from said pocket only when said main door is
opened su?iciently to clear the edge of said auxiliary door.
2.’ Combination door structure according to claim 1
in which said ?ush door mounts means for initiating its
opening and completingrits'closing movements, includ
ing a lever fulcrumed on an upright axis and swingable
in a plane parallel to the ‘surface of said ?ush door when
the latter is closed and rotatable outwardly therefrom to
initiate opening movements and inwardly thereto to com
3,091,820
plete closing movements, upwardly-open recess-forming
prevent such movement at that time, said bolt and said
structure on said ?ush door for receiving an end of said
5
,
lever when said ?ush door is closed, a latch pivoted on
said door above said recess-forming structure and having
a surface adapted to overlie the recess and prevent with
drawal therefrom of said operating lever and being ro
tatable ‘to clear the recess and permit withdrawal there
from of said operating lever.
6
,
member being connected to each other whereby retrac
tion of said bolt is prevented when said main door is fully
closed and permitted when said main door is opened a
predetermined amount.
11. Combination door structure according to claim 10
in which said connection is a bellcrank fulcrumed on
said ?ush door with its arms connected, respectively, to
3. Combination door structure according to claim 2
in which there is a connection between said bolt operat 10 said bolt and said member.
12. Combination door structure for an upright wall
ing mechanism and said latch for retaining the latter
having an elongated door opening, comprising a main
against rotation from its locking position when said main
door is fully closed.
4. Combination door structure according to claim 3
door mounted on the wall for sliding movement in a
plane outward of the wall between an open position clear
in which said connection includes a bellcrank pivoted on 15 of the door opening and a closed position located in said
plane and closing a portion of the door opening toward
said ?ush door, a bar connecting one arm of said bell
one end thereof, a flush door mounted on the wall for
crank to said latch, a second bar slidably mounted on
outward movement from a closed position within the
said ?ush door and extending from said bellcrank to the
door opening substantially flush with the wall and clos
edge of the main door, said mechanism portion compris
ing
the remainder of the door opening, to a sliding posi
ing the end portion of said second bar, said bolt being 20
tion outward of said wall and for sliding movement on
pivotally connected to said second bar between said bell
crank and the mounting of said second bar on said ?ush
door.
5. Combination door structure according to claim 4
the outside of said wall to an open position clear of the
door opening when both said doors are closed, an edge
of said main door overlapping the adjacent edge of said
flush door, elements carried by the wall above and
in which said bars extend crosswise of said ?ush door 25 below the door opening, a vertical shaft carried by said
and the chord between the extremities of the bellcrank
?ush door and mounting elements at its ends engaging
arms is substantially vertical when said doors are fully
said ?rst-named elements and being rotatable to cause
closed.
outward movement of the flush door from, and inward
6. Combination door structure according to claim 4
movement of the flush door to its closed position, an
in which said ibars are in substantial alignment crosswise 30 operating lever pivoted to said shaft for swinging move
of said ?ush door and the chord between the extremities
ments in a plane parallel to the surface of said ?ush door
of the bellcrank arms is in substantial alignment with
when the latter is in closed position, upwardly open
said bars when said doors are fully closed.
recess-forming means on said flush door for receiving an
7. Combination door structure according to claim 3
end of said lever when said ?ush ‘door is closed, a latch
in which the portion of said bolt operating mechanism 35 pivoted on said door above said recess-forming means
engageable with the main door edge comprises a bar
and having a surface adapted to overlie the recess and
slidably mounted on the auxiliary door near said edge
prevent withdrawal therefrom of said operating lever
and pivotally connected to said latch, and said operating
and being rotatable to clear the recess and permit with
mechanism includes a bellcrank pivoted on said auxiliary
drawal of said operating lever therefrom, an upright bolt
40
door with its arms connected respectively to said bar
vertically slidably mounted on the portion of said ?ush
and said bolt.
door adjacent said main door, a pocket on the wall below
8. Combination door structure according to claim 1
said ?ush door to receive said bolt when said ?ush door
in which said operating mechanism comprises a bellcrank
is closed, a bar mounted on said flush door for move
pivoted on said ?ush door and having one arm connected
ment, in a plane parallel to the surface of said door,
to said bolt and the other arm engageable with the adja 45 toward and away from the edge of said main door ad
cent edge of the main door when said doors are closed
jacent said ?ush door and adapted for abutting engage
and then preventing rotation of said bellcrank and re
ment with said main door edge, said bar being connected
traction of said bolt.
to said latch for retaining the latter against rotation from
its locking position when said main door is closed and
9. Combination door structure according to claim 1
in which said bolt operating mechanism includes a bell 50 slidable in the direction of the main door when the latter
is opened to permit rotation of said lat-ch from its lock
crank pivoted on said ?ush door with its arms connected
ing position when said main door clears said ?ush door,
respectively with said bolt and said mechanism portion
engageable with the main door edge.
said upright bolt being connected to said bar for retrac
tion from said pocket when said bar is in its last-named
10. Combination door structure for an upright wall
position.
having an elongated door opening, comprising a main 55
13. Combination door structure according to claim 12
in which the connection of said bar to said latch includes
door mounted on the wall for sliding movement in a
plane outward of the wall between an open position clear
of the door opening and a closed position located in said
plane and closing a portion of the door opening toward
one end thereof, a ?ush door mounted on the wall for
outward movement from a closed position within the
a bellcrank fulcrumed on said ?ush door and a second
60 to said bars.
14. Combination door structure according to claim 13
in which said bars are substantially horizontal and said
door opening substantially ?ush with the wall and clos
ing the remainder of the door opening, to a sliding posi
tion outward of said wall and for sliding movement 65
on the outside of said wall to an open position clear
of the door opening, an edge of said main door overlap
ping the adjacent edge of said ?ush door when both
said doors are closed, an upright bolt slidably mounted
on said ?ush door near the last-named edge thereof, 70
a pocket on the wall below said ?ush door receiving
said bolt when said ?ush door is closed, a member mov
able on said flush door in the direction of opening of
bar, said bellcrank having its arms connected respectively
bellcrank is normally disposed with the chord connecting
its arm extremities vertically positioned.
15. Combination door structure according to claim 13
in which said bars are in substantial alignment crosswise
of said ?ush door and the chord connecting the extremi
ties of said bellcrank arms is normally in substantial
alignment with said bars.
16. Combination door structure in accordance with
claim 12 in which the connection between said bar and
said latch is a direct pivotal connection and the connec
tion between said bar and said bolt comprises a bellcrank
said main door and engageable with the last-named edge
of said main door when the latter is closed whereby to 75 fulcrumed on said ?ush door with its arms respectively
connected to said bar and said bolt.
3,091,820
7
17. Combination door structure according to claim 12
in which there are a pair of said vertical shafts, one
being near each side of the door, and a corresponding
pair of said operating levers both received in said recess
when the door is closed and lockable therein by said
8
on saidwall beneath said ?ush door, carriagestructure
slidably supported on said track, and arms journaled on
said ?ush door on’ vertical axes near the sides thereof
and pivotally mounted on said carriage structure to per
mit movement of said ?ush door into and out of the door
opening.
latch. .
-
a
18. Combination door structure according to claim 12
in which said elements mounted on said shaft are oiifset
locking lugs and said elements carried by the wall are
10
slotted keepers for said lugs.
19. Combination door structure according to claim 18
in which there is a substantially horizontal track mounted
References Cited in the ?le of this patent ’
UNITED STATES, PATENTS
2,834,067
2,878,533
Beauchamp _____._______ May 13, 1958
Beaucharnp __________ __ Mar. 24, 1959
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