Improvements in Locks or Fastenings for Railway-carriage and other Doors.
Year: 1890

page_text: Date of Application, 10th Mar., 1890
Complete Specification Left, 10th Dec., 1890-Accepted, 7th Feb., 1891
-
PROVISIONAL SPECIFICATION.
Improvements in Locks or Fastenings for Railway-carriage
and other Doors.
I, THOMAS WILLIAM WILKES 11 Wolverhampton Road Bloxwich County of
Stafford Railway Carriage Door Lock Manufacturer do hereby declare the nature
of this invention to be as follows:-
My invention is designed to apply to locks called bang locks in which I provide
that the action of the bolt shall be that of full locking--and automatically so upon
the closing of the carriage doors.
My invention may be briefly described as follows.
Preferably I use a bolt with differential follows-that is an enlarged follow on
one side of the bolt, and an usual size follow on the other.
The object of the enlarged follow on one side-which I may place either on
the cap or plate side of the body of the lock is to enable me to fix in it a
stud or pin.
This stud or pin is to receive the weight or pressure of the springs through two
intermediate agents-which are a lever and a push rod, which I call the connector.
The connector being the communication between the aforesaid pin in the enlarged
follow and the said lever.
Preferably I use springs of the rolled flat steel type-either single or double
springs from the top to the bottom of the lock-or from the bottom to the top of
lock and then bent back as far as may be convenient to act upon the intermediate
lever.
When the bolt is moved into the body of the lock by hand power for the purpose
of opening the door the bolt shall be retained by a lever having a curved projection
and a corresponding notch in the end of the lock bolt.
This lever is forced down by pressure of suitable springs. This lever when
closing the door shall be brought into contact with the striking plate or staple―
and raised and thus release the lock bolt, which bolt shall then be free for automatic
full locking, and will thus instantly and fully secure the door locked.
Dated this the Eighth day of March 1890.
THOMAS WILLIAM WILKES.
THOMAS WILLIAM WILKES.
COMPLETE SPECIFICATION.
Improvements in Locks or Fastenings for Railway-carriage
and other Doors.
I, THOMAS WILLIAM WILKES, 11, Wolverhampton Road, Bloxwich, County of
Stafford, Railway Carriage Door Lock Manufacturer, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :-
My invention relates to that class of locks termed bang locks, and it has for
object to provide that the action of the bolt shall be that of full locking, and
automatically so, upon the closing of the carriage door.
My invention consists in providing the lock with a bolt having differential follows,
that is to say, an enlarged follow on one side of the bolt and a follow of the usuaĺ
size upon the other. The object of the enlarged follow, which I may place either
on the cap or the plate side of the body of the lock, to enable me to fix
a stud or pin which is to receive the weight or pressure of the springs through two
TD 1
upon
it

page_text: intermediate agents, which are a lever and a push rod, hereinafter termed the
connector as being the communication between the aforesaid pin in the enlarged
follow and the said lever. I preferably use springs of the rolled flat steel type,
and I may use either single or double springs; the spring, or springs, extending
from the top to the bottom of the lock, or vice versa, and being then bent back as
far as may be convenient to act upon the intermediate lever.
On the accompanying sheet of drawing
Figure 1 is an elevation of a lock of my invention with front plate removed and
the bolt shown within the lock,
Figure 2 is a similar view, but with the striking plate shewn in position and the
bolt turned out or locked,
Figure 3 is a front view of the lock,
Figure 4 a front view of the striking plate,
Figure 5 is an elevation of the lock box or case with bolt and spring removed, and
Figure 6 a view of the front plate.
Similar letters of reference indicating similar parts in each of the figures
respectively.
A indicating lock box or case,
B front plate,
C bolt,
D large follow,
E pin or stud on follow,
F notch in bolt,
G small follow,
H push rod or connector,
I lever,
K stud for lever,
.L spring,
M retaining lever,
N projection on same,
O stud for retaining lever,
P feather springs,
Qstud for feather springs,
R striking plate,
S curved or inclined projection on same.
When the bolt C is moved into the body of the lock by hand power (see Fig. 1)
for the purpose of opening the door, the bolt is retained by the curved projection N
on the lever M, being pressed into the corresponding notch F, in the end of the
lock bolt, by the pressure of the spring or springs P. The door is now free
to open.
To close and fasten the door, it is pushed until the projecting end of the lever M
is brought into contact with the curved or inclined projection S of the striking
plate R, the lever N then rises, releases the bolt C by removing the projection N
from the notch F, and the bolt is shot and automatically full locked by the pressure
of the spring L actuating the lever I and connector H, as shown in Fig. 2.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. A railway carriage or other door lock having a bolt with notch or recess in
its front end and an enlarged follow in connection by suitable levers with an
actuating spring, in combination with a spring lever having a projection corre-
sponding with the notch in the bolt and extending outside of the lock so that upon
the banging of the door the striking plate lifts this lever thereby releasing the
bolt which is then automatically full locked substantially as described.
2. A railway carriage or other door lock having the bolt C, enlarged follow D
with pin E, notch F, small follow G, push rod or connector H, lever I and spring L,

page_text: in combination with the lever M having projection N and actuated by the spring P
to take into the notch F of the bolt substantially as described.
3. In combination with a lock constructed substantially as hereinbefore described,
a striking plate having the inclined projection S, or its equivalent, for lifting the
lever M and releasing the lock bolt substantially as described.
Dated this Tenth day of December 1890
For the Applicant,
W. E. GEDGE,
Agent.