Lock Page: 3 of 4
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678,899
lever, and is also provided with an eye for
the reception of a transverse pivot -pin 21
thrust through the lever and forming a piv-
otal or hinged connection between the lever
5 and the locking-pin, so as to accommodate the
latter to the movement of the lever.
When the lock is unlocked, as shown in Fig.
2 of the drawings, the forward free or handle
end of the lever is thrown upwardly,whereby
1o the locking-pin is drawn upwardly out of en-
gagement with the tongue of the bolt, so as
to free the latter, and the opposite free end
of the lever, which has a pendent trip pro-
jection or knob 22, strikes against the flange
15 7 at the rear projecting end of the trip-slide
5, thereby pushing the latter forwardly, so
that its front end projects beyond the keeper
and the slot or opening 23 in the trip-slide is
disposed in advance of the locking - pin in
20 order that the latter may rest upon the im-
perforate portion of the slide, and thereby be
prevented from accidentally dropping down-
wardly into the perforations in the top and
bottom of the keeper, which would prevent
25 the bolt from again entering the casing. In
closing the door the tongue of the bolt first
enters the adjacent open end of the keeper,
after which the shoulder 12 comes in contact
with the front end of the trip-slide 5, thereby
30 pushing the latter rearwardly until the slot
or opening therein registers with the lower
end of the locking-pin, when the latter drops
by gravity and enters the several alined per-
forations to lock the tongue. It will be ob-
35 served that as the trip-slide moves rearwardly
it pushes against the rear end of the lever,
thereby forcing the opposite front end thereof
downwardly, so as to insure the prompt drop-
ping of the locking-pin into engagement with
40 the bolt. When the lever is again raised to
release the bolt, the rear end of the lever
pushes the trip-slide forwardly against the
shoulder 12 of the bolt, thereby giving the
door an initial shove, so as to open the same
45 to the limit of the play of the slide, thereby
facilitating the opening of the door, as con-
siderable power may be applied through the
lever to overcome any sticking or binding of
the door.
5o To permit of the lock being unlocked from
the interior of the car, there is provided an
operating cord or chain 24, which is connect-
ed to the forward free portion of the lever
and passes inwardly through an opening 25
55 in the adjacent side of the car, so that the
cord may be pulled to elevate the lever and
thereby release the lock without aid from the
exterior of the car,
It will be understood that the present lock
6o is more in the nature of a latch than a key-
operated lock, as it is merely intended to pre-
vent the door from becoming accidentally
opened, and a seal is employed to indicate
when the door has been opened.
65 What is claimed is-
1. The combination with a keeper, of a bolt
for engagement therewith, a bolt-locking pinfor engagement with the bolt when in the
keeper, an unlocking-lever for the pin, an
oppositely-movable pin-supporting trip for 70
holding the pin in its unlocked position and
located in the path of the inward movement
of the bolt to be tripped thereby in one direc-
tion, and a trip-resetting device carried by the
lever and constructed to move the trip in the 75
opposite direction by the pin-unlocking move-
ment of the levei.
2. The combination with a keeper, a bolt,
and a bolt-locking device for the bolt when in
the keeper, of unlocking means for said de- 8o
vice, a bolt-actuated .trip for the support of
the bolt-locking device in its unlocked posi-
tion, and means for resetting the trip by the
actuation of the unlocking means.
3. The combination with a keeper, a bolt, 85
and a bolt-locking device for locking the bolt
in the keeper, of a bolt-actuated oppositely-
movable trip for the support of the said de-
vice in its unlocked position and located in
the path of the inward movement of a por- 90
tion of the bolt, an unlocking device for the
bolt-locking device, and means for resetting
the trip by the unlocking movement of the
unlocking device, the bolt and the trip being
in operative relation to force the former out 95
of the keeper by the resetting movement of
the latter.
4. The combination with a keeper, a bolt,
and a bolt-locking device for the bolt when in
the keeper and which is normally supported 100
in its unlocked position, of means for auto-
matically tripping the said device by the in-
ward movement of the bolt, an unlocking de-
vice for the bolt-locking device, and means
for resetting the tripping means and for forc- 105
ing the bolt out of the keeper by the actua-
tion of the unlocking device.
5. The combination with a keeper, a bolt,
and a locking device for the bolt when in the
keeper, of an unlocking device for the lock- 1 i
ing device, and means for automatically forc-
ing the bolt out of the keeper by the actua-
tion of the unlocking device.
6. In a lock, a keeper having a perforation,
a slidable bolt having a perforation for aline- 115
ment with that of the keeper, an endwise-
movable bolt-locking pin constructed to en-
ter alined perforations of the keeper and bolt,
an oppositely-slidable pin-supporting bolt-ac-
tuated trip mounted upon the keeper, a pin- 120
unlocking lever fulcrumed intermediate of its
ends upon the keeper, the pin being connected
thereto at one side of the fulcrum thereof, and
a trip-resetting device carried by the opposite
rear portion of the lever and constructed to 125
strike the trip and reset the same by the un-
locking movement of the lever.
7. In a lock, a keeper, a bolt, an oppositely-
movable bolt-locking device for the bolt when
in engagement with the keeper, an endwise- 130
slidable supporting-trip for the bolt-lock and
projected at opposite ends beyond the keeper,
the front end of the trip being in the path of
the inward movement of the bolt, a pivotal
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Reference the current page of this Patent.
Ozment, David Brewer. Lock, patent, July 23, 1901; [Washington D.C.]. (https://texashistory.unt.edu/ark:/67531/metapth513686/m1/3/?rotate=90: accessed June 22, 2024), University of North Texas Libraries, The Portal to Texas History, https://texashistory.unt.edu.; crediting UNT Libraries Government Documents Department.