Car Door Fastener Page: 2 of 4
[1], 3 p. : ill. ; 23 cm.View a full description of this patent.
Extracted Text
The following text was automatically extracted from the image on this page using optical character recognition software:
UNITED STATES PATENT OFFICE,
DAVID W. CAMPBELL, OF BROWNWOOD, TEXAS, ASSIGNOR OF ONE-HALF TO JAMES A.
SNODDY, OF BROWNWOOD, TEXAS.
CAR-DOOR FASTENER.1,211,284.
Specification of Letters Patent.
Patented Jan.2, 1917.
Application filed September 20, 1916. Serial No.-121,267.
To all whom it may concern:
Be it known that I, DAVID W. CAMPBELL,
a citizen of the United States, residing at
Brownwood, in the county of Brown and
5 State of Texas, have invented certain new
and useful Improvements in Car-Door Fas-
teners; and I do hereby declare the follow-
ing to be a full, clear, and exact description
of the invention, such as will enable, others
10 skilled in the art to which it appertains to
make and use the same.
This invention relates to locks and latches,
and more especially to sliding door fas-
teners; and the object of the same is to pro-
15 duce a. fastener for sliding doors such as
used on the sides of freight cars, unitary
means for unfastening the device and open-
ing the door, and an attachment by. means of
which a seal can be applied. These objects
20 are carried out as set forth in the following
specification and .shown in the drawings
wherein:
Figure 1 is a perspective view of one side
of a freight car with its door, closed and
25 fastened with this improved device. Fig. 2
is a horizontal section showing the fastening
dog depressed, the lever turned outward,
and the door in the act of being opened.
Fig. 3 is a perspective detail of an amplifi-
30 cation.
I have shown my invention as applied to
an ordinary freight car whose side wall W
is usually composed of boards attached to
internal uprights U, and is provided with a-
35 central opening 0 across which moves a door
D suspended from above on a hanger H and
possibly guided at its lower edge as at G,
and when this door is slid over the opening
against a cleat or stop S, means are desirable
40 for holding it fastened in this its closed
position and perhaps also for sealing the
fastener so that it cannot be opened by un-
authorized persons. These objects are all ac-
complished by my invention, and in addi-
45 tion the lever which I employ for depressing
the fastener or dog is used also for moving
the door.
Coming now to the details of the present
invention, the numeral 1 designates a hous-
.0 ing or casing mounted on the inside of the
wall W and possibly extending from one up-
right U to another, .and this housing may
well be of metal so that it occupies but little
space. Its main function is to contain partsof . the fastener and to prevent dust from 55
getting into the car and grain or the like from
getting out of it. Its walls may be carried
through an opening 2 in the car wall W,
around which they may be continued into a
face plate 3; and the entire housing is lo- 60
cated beyond the rear edge of the door D
when the latter is closed. Within this hous-
ing is movably mounted a pawl or dog 4
whose shape is best seen in Fig. 2, and it
may well be provided with slots 5 loosely 65
engaging pins 6 in the housing. A spring 7
projects the dog normally as far as the slots
and pins will permit,*and at this time its
inner end 8 stands across the rear edge of
the door D when the front edge of the latter 70
rests against the stop S. Therefore the door
cannot be opened until the dog is depressed
into the housing and out of the plane of the
moving door. Then the door can move com-
pletely across the outer edge of the dog, but 75
when the door is again closed the dog springs
outward automatically and locks it closed.
Pivoted at 10 to the rear corner of the
door is a lever 11 whose outer arm may well
be round or enlarged as at 12 for a purpose 80
yet to appear and whose inner arm is slotted
as at 13 and provided with a handle 14. A
button 15 is mounted on the door in such
position that the slot may pass over it and
then the button can be turned as seen in Fig. 85
1 to hold the lever against movement. When
now it is desired to open a door which is
fastened by. the improved device above de-
scribed, the lever is unbuttoned and the op-
erator grasps the handle 14 and draws it 90
outward. This turns the lever around its
pivot 10 so that its outer arm moves across
the rear edge of the door and its enlarged
end 12 .strikes the edge of the dog and de-
presses the latter against the force of the 95
spring 7. . Continued movement of the han-
dle carries the lever 11 into a position at
right angles to the plane of-the door, and
when the outer arm strikes its rear edge the
lever is held from further swing and con- 100
tinted movement of the handle slides the
door on its hanger H. In order to again
close the door, the operator may .grasp the
handle and conveniently use it for this pur-
pose, finally buttoning it in place as seen in 105
Fig. 1.
For sealing the door when fastened by
this improved device I make use of what
Upcoming Pages
Here’s what’s next.
Search Inside
This patent can be searched. Note: Results may vary based on the legibility of text within the document.
Tools / Downloads
Get a copy of this page or view the extracted text.
Citing and Sharing
Basic information for referencing this web page. We also provide extended guidance on usage rights, references, copying or embedding.
Reference the current page of this Patent.
Campbell, David W. Car Door Fastener, patent, January 2, 1917; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth859379/m1/2/: accessed July 17, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu; crediting UNT Libraries Government Documents Department.