IMPROVEMENTS IN LOCKS FOR RAILWAY AND OTHER CARRIAGE DOORS, AND OTHER ANALAGOUS PURPOSES to be as follows
Year: 1884

page_text: PMI
I, WILLIAM WILKES of Mill Lane Works Bloxwich in the County of Stafford,
Railway Carriage Lock Manufacturer do hereby declare the nature of my invention
for "IMPROVEMENTS IN LOCKS FOR RAILWAY AND OTHER CARRIAGE DOORS, AND
OTHER ANALAGOUS PURPOSES to be as follows :-
"
The object of my improvements is the construction of double-action locks for the
before-mentioned purposes, inasmuch as those in ordinary use-that is to say, locks
which have but one locking action-have been found to bo very defective, and in
cases where but the one antiquated spring has been used, they were constantly
breaking, and the continual oscillation of the carriages upon which they have been
used, has caused the bolts of such locks to rise from their bearings in the striking-
plates, and the result being the flying open of the doors to the imminent danger,
and in most cases the loss of life of passengers.
My improvements in locks as before-mentioned consits "Firstly" in the con-
struction of locks having a double-action-that is to say a lock which shall strike
and sufficiently secure the door, and having also a second action-namely a locking
action-Thus it will be seen that inasmuch as my improvements consists in making
the bolt to strike, and that too in a most easy manner, the risk which is caused
by-in many instances-want of time on the part of the companys servants to
properly secure the doors of the carriages previous to the departure of a train, is
obviated or to some considerable extent overcome, from the fact that even the
slightest push, or the simple motion of the train would be sufficient to close the
door and thus effect its being secured by the bolt striking into the opposite side
of the door-case, or even by the slightest pull of the door by any of the inmates of
the carriage, the door would be securely fastened, though not actually having
received its second action-namely that of locking.
In constructing locks according to this principle as in each of the following cases,
in order to obtain a greater striking surface or bevil upon the bolts, I peferably
make the bolts the same thickness as the body of the lock between the two plates,
for about two-thirds of its length, and the remaining third or other part I increase
in thickness by the same thickness as the plate on the back side of the lock, and
this extra thickness necessarily works or moves in a corresponding hole made in
the plate on the back side of the lock,

page_text: Against the bottom and side part adjoining the axis of this bolt, I employ a -
lever having a flat surface, and bearing against it in such a way as by the pressure
of the springs to be hereinafter named, will retain the bolt in the position for
striking, and having been afterwards locked out by its second action, also securely
retains the bolt as locked.
"
Secondly" in constructing locks according to my improvements, I may either
employ a lever-the end of which has a convex and concave. surface-working
against and coinciding with corresponding concave and convex surfaces upon the
bottom and side adjoining the axis of the bolt, or I may preferably employ a lover
having a wheel in the end of the same, which shall be the same thickness as the
bolt, and also working against and coinciding with the before-mentioned concave
and convex surfaces of the bolt, and being actuated by springs also to be hereinafter
named. These locks I construct to be morticed into doors.
I also purpose constructing a lock to be fixed upon the outside of doors upon
precisely the same principle as the last named, but all the works shall be coverod
by a plate or cap of any suitable metal, thus will it be protected from rain, dust
and snow.
The springs I preferably uso in these locks are those patented by mo Jan 25th
1884 and numbered 2092 as shewn in diagrams of that specification.
.I do not however specially or strictly confine myself to the exact details herein a
contained, as the same may be open to some slight modification.
:
DOL
1004

page_text: and other Analogous Purposes.
I, WILLIAM WILKES, of Mill Lane Works Bloxwich in the County of Stafford,
Railway carriage Lock Manufacturer do hereby declare the nature of my invention
for "IMPROVEMENTS IN LOCKS FOR RAILWAY AND OTHER CARRIAGE DOORS, AND
OTHER ANALOGOUS PURPOSES" and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement :-
The object of my improvements is the construction of double-action locks for
the above purposes, inasmuch as those in ordinary use-that is to say, locks which
have but one locking action-have been found to be very defective, and in cases
where but the one antiquated spring has been used, they were constantly breaking,
and the continual oscillation of the carriages upon which they have been used, has
caused the bolts of such locks to riso from their bearings in the striking-plates,
and the result being the flying open of the doors to the imminent danger, and in
most cases the loss of life of passengers.
In constructing locks according to my improvements, in order to give the bolts
a double-action-that is a striking action and a second or locking action-on the
bottom and side of the bolts adjoining the axis on which they turn outward in a
circular direction, I form two convex and two concave surfaces—a. a—b. b Fig. 6
behind which I employ a lever-c-having a wheel-d-therein which is actuated
by the projection-e-bearing against the springs—f. f.
In order to obtain a greater striking surface I make that part of the bolt thicker
than the other, so that one side of it works in a hole-g-through the back-plate.-
This drawing, as well as each of the others shews the striking part of the bolt-
which is bevilled and rounded to a suitable form-projecting from the front of the
lock, the action of which is as follows.―
When the handle-h-in dotted lines is turned, or the bolt forced in by the
striking part of the bolt coming into contact with the striking plate upon
the door, the convex surface-a-prosses against the wheel-d-in the lever-c
and by virtue of the projection--thereon bearing against the springs-ƒ ƒ—so
Boon as the handle is looed, or the bolt brought opposito the space in the striking
plate, the bolt is instantly forced outward to its original position, and retained
there by the wheel-d-falling into the concave recess-b-So in like manner
in turning the bolt so as to give it the second or locking action, when its position
would be at right-agles with the front of the lock, the second convex surface is
forced over the wheel which falls into the second concave recess-b-and the bolt
thereby retained in a locked position.
The lever with wheel therein is the subject of my Patent numbered 2117 of
July 13th 1872—and the springs the subject of my Patent numbered 2092 of 1884,
both being particularly applicable to my present improvements.
I also claim the construction of locks to be fixed upon the outside of carriage
doors, either to be let into the doors flush, or secured to them flat.-The internal
construction of these locks is precisely the same as tho preceeding one, but all the
works are covered so as to protect them against dust, rain, and snow,

page_text: Fig. 1, shews one of these locks with cover plate removed.-Fig. 2, is the cover
plate. Figs. 3 and 4 are sections of the same.-Fig. 5, is a section of the lever-c
Fig. 7 is an end view of Fig. 6.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what 5
I claim is
1. The improved construction of railway carriage door locks with double action
device, substantially as hereinbefore described and illustrated by figure 6 of the
drawings.
2. The improved construction of outside locks substantially as hereinbefore 1
described and illustrated by figures 1-3 and 4 of the drawings.
Dated this 9th day of Inl– 1005