Improvements in Locks and Devices for Securing the Doors of Railway Carriages and other Vehicles.
Year: 1899

page_text: Date of Application, 15th Sept., 1899
Complete Specification Left, 2nd Apr., 1900-Accepted; 30th June, 1900
Improvements in Locks and Devices for Securing the Doors of Railway
Carriages and other Vehicles.
We, GEORGE BROMLEY ALLEN, of Albion Cottage, Northwick Road, Worcester,
in the County of Worcester, Engineer, and HENRY FRANCIS PRESCOTT CLARKE,
of Sandoline, Ombersley Road, Worcester, aforesaid Banker, do hereby declare
the nature of our said invention to be as follows:-
Our invention has for its object improvements in safety locks or devices for
securing the doors of railway carriages and other vehicles so as to enable the
guard or person in charge of the train to lock and unlock the doors of each
coach simultaneously.
In carrying our invention into practice we fix into the roof of the coaches
over the doors of each compartment a Y or other suitable shaped bolt or catch
pivoted in a suitable bracket. The lower part which forms the bolt or catch
proper protrudes through the door frame into a recess in the door when the
door is locked. Attached to the upper arms of this bolt are cords or their
equivalents passing over guide pulleys along the whole length of the train into
the interior of the guards van where they are connected to a lever or its equiva-
lent situated in a convenient position so that when the train starts the guard
can by pulling this lever operate the bolts so as to securely lock the doors.
When the train stops and the lever is released a spring attached to the opposite
ends of the cords tilts the bolts or catches thereby unlocking the doors of each
compartment simultaneously.
C1
1
1000
GEORGE BROMLEY ALLEN,
HENRY FRANCIS PRESCOTT CLARKE.
By George Barker,
Fellow of the Chartered Institute of Patent Agents,
Agent for Applicants, 77, Colmore Row, Birmingham.
Improvements in Locks and Devices for Securing the Doors of Railway
Carriages and other Vehicles.
I, GEORGE BROMLEY ALLEN, Albion Cottage, Northwick Road, Worcester,
in the County of Worcester, Engineer, and HENRY FRANCIS PRESCOTT CLARKE,
of Sandoline, Ombersley Road, Worcester, in the County of Worcester, Banker,
do hereby declare the nature of our said invention and in what manner the same
P71

page_text: is to be performed to be particularly described and ascertained in and by the
following statement:
.
Our invention has for its object improvements in locks or devices for
securing the doors of railway carriages and other vehicles, so as to enable the
guard or person in charge of the train to lock and unlock the doors of each
coach simultaneously.
In carrying our invention into practice we fit into the roof of the coaches
over the doors of each compartment a Y or other suitable shaped bolt or catch
pivoted in a suitable bracket. The lower part which forms the bolt or catch
proper protrudes through the door frame into a recess in the door when the
door is locked. Attached to the upper arms of this bolt are cords or their
equivalent passing under guide pulleys along the whole length of the train into
the interior of the guards van where they are connected to a lever or its equiva-
lent situated in a convenient position as that when the train starts the guard
can by pulling this lever operate the bolts so as to securely lock the doors.
When the train stops and the lever is released a spring attached to the opposite
ends of the cords tilt the bolts or catches thereby unlocking the doors of each
compartment simultaneously.
In order that our invention may be more clearly understood and easily
carried into practical effect we have appended hereunto two double sized sheets
of drawings upon which we have illustrated examples of our locking device
as applied to railway carriage doors.
Figure 1 is a front elevation shewing a portion of a railway coach with our
locking device applied thereto.
Figure 2 is an enlarged cross sectional view shewing a portion of the guards
van with our arrangement for locking and unlocking the doors along one side
of the train only.
Figure 3 is an enlarged cross sectional view of a portion of the guards van
shewing our arrangement for locking and unlocking the doors on both sides
of the train simultaneously.
In carrying our invention into practice we fit into the roof of the coach W
over the doors of each compartment the Y or other suitably shaped bolt or
catch A which is pivoted at a' in the bracket ². The lower part which forms
the bolt or catch proper protrudes through a slot in the roof and in the upper
portion of the door frame into a recess formed in the upper portion of the door
as clearly shewn at Figure 1. Attached to the upper arms of the bolt or
catch A are the cords B or chains or their equivalents passing under the guide
pulleys and along the whole length of the train into the guards van V.
Mounted in the brackets in the interior of the guards van is the pulley
over which the cord B passes as it enters through the roof of the van the end
being connected to one end of the lever L pivoted at to the end of the guards
van as clearly shewn at Figure 2. This lever L works in the rack 12 or its
equivalent as shewn at Figures 1 and 2 and when moved by the guard so as
to catch onto one of the teeth immediately before or as soon as the train starts
in the direction of the arrow into the position as shewn at Figure 2 it draws
the cord B downwards thus moving the bolts or catches A and bringing the
parts or ends a³ into the position as shewn at Figure 1 thereby simultaneously
locking the doors of each coach on the one side of the train. In a like manner
when the trains draws up at the station platform and the guard releases this
lever L into the position as shewn in dotted lines Figure 2 the spring S one end
of which is attached to the end of the cord B and the other end to the bracket s¹
fixed to the ends of that coach next to the engine will draw the cords B in the
direction of the arrow y thereby tilting the bolts A and bringing the ends or
parts clear of the doors D thus simultaneously unlocking the whole of the
doors on the one side of the train and allowing them to be opened for the
passengers to alight. It will be seen that as the doors of each compartment

page_text: are locked and under the control of the guard no passengers can alight until
the train has ceased moving thus preventing accidents through passengers
alighting while the train is in motion. It will be evident that our locking
device may be arranged so that when the guard releases the lever L the spring S
or its equivalent will draw the bolts or catches A into position so as to lock
the doors and when the lever is raised the bolts or catches will be tilted so as
to be clear of the doors thus allowing them to be opened.
At Figure 3 we have shewn an arrangement for locking and unlocking the
whole of the doors on both sides of the train simultaneously. In this case the
cords B and 132 pass over the guide pulleys b' and as they enter the guards
van and from thence to the guide pulleys and the ends being attached
to the Y shaped bracket F or its equivalent which is free to slide up and down
in the bracket F. The bracket is provided at its lower end with the peg or
roller fitting into the slot formed in the lever H pivoted at 2 to the side
of the van. The other end of this lever works in the rack or its equivalent
in which it is held. By raising or lifting this lever in the direction of the
arrow the cords B and B are pulled by the springs S thereby tilting the bolts
or catches so as to lock or secure each door along both sides of the train simul-
taneously but when the lever H is moved into the position as shewn at Figure 3
the bolts and catches are tilted so as to bring the lower parts a clear of the
doors thus allowing them to be opened for the passengers to alight. It will be
evident however that the bolts or catches may be tilted or brought clear of the
doors so as to allow them to be opened by lowering the lever H instead of lifting
or raising it in which case when the lever is released the action of the springs S
would draw the cords B, B2 and bring the ends of the bolts into the slots in
the doors thus in a like manner simultaneously locking each door along both
sides of the train.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that
what we claim is;-
CLAIMS.
First Locking or bolting the doors of railway carriages and other vehicles
by bolts operated simultaneously by cords chains, or their equivalents passing
over guide pulleys along the sides of the train into the interior of the guards
van the end or ends of the said cords chains or the like being attached to a
lever or levers actuated by the guard in the manner and for the purpose sub-
stantially as herein set forth and as shewn upon the accompanying sheets of
drawings.
Second: The device for securing the doors of railway carriages and other
vehicles consisting of bolts or catches such as A operated manually from the
interior of the guards van by levers such as L or their equivalents in the
manner and for the purpose substantially as herein set forth and as shewn by
Figures 1 and 2.
Third: The device for securing the doors of railway carriages and other
vehicles consisting of bolts or catches such as A operated manually from the
interior of the guards van by a lever such as H or its equivalent in the manner
and for the purpose substantially as herein set forth and as shewn by Figure 3.
Dated this 31st day of March 1900.
GEORGE BROMLEY ALLEN,
HENRY FRANCIS PRESCOTT CLARKE.
By George Barker,
Fellow of the Chartered Institute of Patent Agents,
Agent for Applicants, 77, Colmore Row, Birmingham.