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Патент USA US2136274

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NOV. 8, 1938.
G‘ c_ CHRISTY
2,136,274
DOOR CONTROLLING DEVICE
Filed April 25, 19:57
2 Sheet's-Sheet 1
272,1.
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172706721507”
G’emye 67 $72,571‘?
NOV. 8, 1938.
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G. c, )CHRISTY
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DOOR CONTROLLING DEVICE
Filed April 23, 1937‘
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2,136,274
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Patented Nov. 8, 1938
2,136,214
PATENT OFFICE
UNITED STATES
2,136,274
noon CONTROLLING DEVICE
George 0. Christy, Chicago, Ill.
Application April 23, 1937, Serial No. 138.530
10 Claims.
(01. 292-110)
This invention relates to improvements in door
controlling devices and has for its object to pro
vide a new and improved device of this descrip
tion.
The invention has as a further object to
provide a door controlling device which auto
matically stops and holds the door in any de
sired position. The invention has as a further
object to provide a door controlling device where
in the movement of the handle for moving the
and at a point between the rollers 2 and 3, is an .
automatic acting holding device for holding the “
door in any desired position and for preventing
it from being moved by the‘ movement of the car,
or the variation in the speed ,of the car, or the
stopping of the car.
In this construction the ,
holding device is provided with two members
holds the door in any given position. The inven
tion has as a further object to provide a door
controlling device for controlling laterally mov
l5 and l6. s The member I5 is a cam member. and
the member l6 isan engaging member‘ for en
gaging a fixed part on the car.
These two mem
bers are preferably connected together in some _ ‘
moved except when moved by means of the , suitable manner so that they act together.
handle.
The invention has as a further object
to provide a door controlling device for’cars which
automatically prevents the movement of the door
in either direction, due to movement, change in
speed or stopping of the car.- The invention has
further objects which are more particularly
pointed out in the accompanying description.
works in a groove 20 in a member 2| attached
door.
The cam member I5 is‘ free to swing with re
25 door embodying the invention;
Fig. 2 is an enlarged sectional view taken on
line 2-2 of Fig. 1;
~
'
Fig. 3 is a sectional view taken on line 3-3 of
Fig. 2;
In
the construction shown in Figs‘. -1 to 5 inclusive,
these members are mounted upon a pin ll which
has a vertical movement, but is con?ned against
lateral movement. One end of the pin works
in a groove l8 in the stationary member H! at
tached‘ to the door and the other end of the spin
to the cover'y22, which cover is attached to the
Referring now to the drawings,
Fig. 1 is a side elevation showing one form of
so
The door is provided with the
door; renders inoperative the holding device that
_ able doors, which prevents the doors from being
is
slide laterally.
ordinary hasp l2, staple l3 and locking pin I4.
Attached to the door, preferably at the bottom,
'
Fig. 4 is a sectional view similar to Fig. 2 show
ing the parts in their holding position;
Fig. 5'is a front view of the parts in the posi
tion shown in Fig. 4;
Fig. 6 is a view similar to Fig. 2 showing a
lation to engaging member l6 and is provided
with the downwardly projecting corners 23 and
24, which project below theface 25‘ of the cam
member intermediate them. This face ‘25‘is pref
erably curved, but it may be of any desired shape
to secure the desired result. The engaging memé
so
ber I6 is provided with a hook 26 which hooks
under the ?ange 21 of the rail 6 and'prevents the
bottom of the door from being moved outwardly.
modi?ed construction; and
A handle‘28 projects through a slot 29 in the ’
Fig. '7 is a view similar to Fig. 3 showing a modi
?ed construction.
the two side members projecting inwardly along
cover 22.
This handle is preferably .U-shaped,
Like numerals refer to like parts throughout
the several ?gures.
Referring now to the construction shown in
the edges of the members I5‘ and‘ I6, as shown in
Figs. 2, 3, 4 and 5. There'is a stop member 30
Figs. 1 to 5 inclusive, there is illustrated a car
moval and which also acts as a shield for slot
29. The cam member l5 and the rail engaging
member l6 are held between the member l9 and
door I which is adapted to slide laterally back
and forth.
This door may be mounted in any
desired manner. As herein shown there are pro
vided rollers 2 and 3 rotatably mounted in the
fastened to the handle so as to prevent its ‘re
the members 2| and 30.
‘
When there is pressure ‘applied to the door
brackets 4 and 5 attached to the door, which
which is not applied by the handle, one of the cor
roll upon a rail 6 as the door is moved back and
forth. The brackets 4 and 5 are preferably pro
ners 23 or 24, depending upon the direction of the
force, engages the rail Band the cam member is
vided with guides ‘l and 8 which move along the
thus rocked so as to lift the engaging member l6
and cause'the hook 26‘ of the engaging member 50
Hi to engage the ?ange 21 of the rail 6 and hold
the door against movement. When it is desired
50 rail 6 so as to prevent outward or inward move
ment of the door at the bottom. At thetop the
door is provided with members 9’ and In which‘
preferably have parts on opposite sides‘ of the
guide I I' so as to hold the topof the door against
outward or inward movement, but permit ity to
to move the. door, the handle 28‘ is grasped and
moved. This handle engages the cam. member
['5 and moves it until it is parallel to the member 55‘
2
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2,136,274
\
Hi, This releases either corner which engages
the rail so as to cause the hook 26 to drop and
release the ?ange 21 of the rail 6, thus permitting
a free movement of the door.
In the modi?ed construction shown in Figs. 6
and '7 the holding device comprises a cam member
3| and the engaging member 32. The cam mem
ber in this case is provided with a slot 33 in which
is received the stationary guiding device 34 which
10 is fastened at one end to the casing 35 and at the
other end to a member 36 attached to the door.
In this construction the guiding device 34 may be
a bolt having a nut 31 which ?ts in a recess 38 in
the member 36 and a head 39 at the outer end
15 thereof. There is a pin 40 which extends through
the cam 3| and the engaging member 32 so as to
4. A door controlling device comprising a rail
along which the door travels, a holding device as
sociated with said door comprising a cam member
and a rail engaging member connected together,
the cam member, when pressure is applied to the 10
door, acting to move the rail engaging member
to engage the rail and hold the door against
movement, and a handle movable with relation
to said door and adapted, when moved, to move
the cam member to release the rail engaging 15
member and permit the door to be moved by
further pressure applied to the door.
This pin is free to move up and down with the
members 3| and 32. The cam member 3| is ar
5. A door controlling device comprising a rail
along which the door travels, a holding device as
sociated with said door comprising a cam member 20
and a rail engaging member connected together,
the cam member having a rocking movement with
relation to the rail engaging member and being
provided with separated projections, one of which
engages the upper face of the rail when pressure
ber l5, having the corners 23 and 24, and the
engaging member 32 is provided with the hook
4| which hooks over the flange 21 of the rail 3.
The handle 28 extends through the slot 29 and
25 is U-shaped, the side members extending along
the edge of the member 3| and 32.
When a pressure is applied to the door, to move
it laterally apart from the handle, the cam device
3| acts to lift the engaging member 32 and
30 cause the hook to engage the ?ange 21 of the rail
and prevent movement of the door. When the
handle is grasped and pressure is applied thereto,
it engages the edge of the cam 3| and moves it
so as to cause the engaging member 32 to lower
35 and release the flange 21 so as to permit the free
movement of the door by further pressure applied
to the handle.
The rail 6 at its end is provided with a stop 42
which limits the opening movement of the door.
40 When it is desired for any reason to remove the
' cam member and the rail engaging member and
'
is applied to the door, to hold the door against
movement.
6. A door controlling device comprising a rail
along which the door travels, a holding device as
sociated with said door comprising a cam member 30
and a rail engaging member connected together,
the cam member having a rocking movement
with relation to the rail engaging member and
being provided with separated projections, one of
which engages the upper face of the rail when 35
pressure is applied to the door, to hold the door
against movement, and a uéshaped handle be
tween the members of which the cam member and
rail engaging member are received and which,
when pressure is applied to the handle, engages 40
the cam and moves it to its releasing position
handle, it is only necessary to remove the stop
so as to release the rail engaging member and
42 and then move the door so that the cam and
permit the door to be moved by further pressure
applied to the handle.
7. A door controlling device comprising a rail
along which the door travels, a holding device as
rail engaging members are beyond the end of
the rail. The cam member and the engaging
member will then be dropped out through the
handle. When it is desired to remove the handle,
the bottom of the door is moved outwardly away
from the car and the handle is then pushed in
50 wardly, so as to remove it. The slot for the han
dle is large enough so that the outer end of the
handle can be tilted upwardly to permit the stop
30 to pass the edge 30a on the door.
I claim:
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55.
1. A door controlling device comprising a rail
along which the door travels, a holding device as
sociated with said door having two members on
opposite sides of said rail, means for moving said
members relatively towards each other when
60. pressure is applied to the door, to cause them
to engage said rail and hold the door against
movement.
2. A door controlling device comprising a rail
along which the door travels, a holding device as
65
sociated with said door adapted, when pressure
is applied to the door, to cause the holding device
to engage said rail and hold the door against
movement, and a movable handle movably con
70 nected with said door and adapted, when moved,
to release the holding device and to then move
the door.
3. A door controlling device comprising a rail
along which the door travels, a holding device
75
movement.
permit a relative rocking movement of the two.
20 ranged at the bottom similarly to the cam mem
4,5
ber and a rail engaging member connected to
gether, the cam member, when pressure is applied
to the door, acting to move the rail engaging mem
ber to engage the rail and hold the door against
associated with said door comprising a cam mem
sociated with said door comprising a cam member
and a rail engaging member connected together,
the cam member having a rocking movement with
relation to the rail engaging member and being 50
provided with separated projections, one of which
engages the upper face of the rail when pressure
is applied to the door, to hold the door against
movement, a cover for said cam member and rail
engaging member fastened to said door, and a 55
handle projecting through said cover and free to
move with relation thereto in a direction sub
stantially parallel to said door, the movement
of the handle causing it to move the cam member
so as to release it and the door engaging member 60
and permit the door to be moved by further pres
sure applied to said handle.
7
8. A door controlling device comprising a rail
along which the door travels, a holding device as
sociated with said door comprising two members 65
having portions on opposite sides of said rail,
means for moving said portions relatively to cause
said portions to move to lessen the distance be
tween them, to grip the rail on opposite sides 70
thereof when pressure is applied to the door, to
hold it against movement.
9. A door controlling device comprising a rail
along which the door travels, a holding device
associated with said door comprising two mem 75
2,136,274
3
bers having portions on opposite sides of said
rail, means for moving said portions relatively to
sociated with said door for holding the door when
pressure is applied to the door, said rail forming
cause said portions to move to lessen the distance
the support for supporting said holding device,
between them, to grip the rail on opposite sides
thereof when pressure is applied to the door, to
hold it against movement, and a handle associ
ated with said members which releases them
from the rail when pressure is applied to the
handle, so that the door may be moved by further
10 pressure applied to the handle.
10. A door controlling device comprising a rail
along which the door, travels, a holding device as
and a covering device attached to said door, for
covering said holding device, said covering device 5
open at the bottom, so that when the door is
moved to bring the holding device beyond the
end of said rail, the holding device may be re
moved through the open bottom of said covering
device.
GEORGE’ C. CHRISTY.
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