An Appliance for Locking Railway Carriage Doors combined with an Arrangement for Indicating the Next Station the Train will Stop at.
Year: 1892

page_text: Date of Application, 1st Mar., 1892
Complete Specification Left, 30th Nov., 1892-Accepted, 1st Mar., 1893
PROVISIONAL SPECIFICATION.
An Appliance for Locking Railway Carriage Doors combined with
an Arrangement for Indicating the Next Station the Train will
Stop at.
RALPH STEEN Weighing Machine Maker St. Peter Street Blackburn Lancashire
do hereby declare the nature of this invention to be as follows :-
:―
An appliance for locking railway carriage doors combined with an arrangement
for indicating the next station the train will stop at.
The appliance consists of an arrangement of levers and catches, affixed to the
framework of the carriages, the said levers etc. being under the control of the guard.
By the operation of the aforementioned levers etc. locking of each door and the regis-
tration of next station at which the train stops is simultaneously attained.
The application of the above is so arranged that any one or more of the doors
may be unlocked, opened, closed, and relocked in the ordinary manner with officials
key without interfering with the effectiveness of the invention.
Dated this 29th day of February 1892.
RALPH STEEN.
COMPLETE SPECIFICATION.
An Appliance for Locking Railway Carriage Doors combined with
an Arrangement for Indicating the Next Station the Train will
Stop at.
RALPH STEEN, Weighing Machine Maker, St. Peter Street, Blackburn, Lancashire.
I 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:-
An appliance for locking railway carriage doors combined with an arrangement
for indicating the next station the train will stop at.
Fig. 1 is a longitudinal elevation and
Fig. 2 a transverse section of part of railway carriage shewing appliance and
mode of application.
A. A. is part of framework of carriage BB part of door joint along C C. DD is
a cord running along from carriage to carriage the whole length of the train and
under the control of the guard.
The cord D is attached to one end of the swivel E which turns upon the centre e.
to the other end of the swivel E is attached a flexible cord or wire F which passes
between two pulleys Q Q. These pulleys are merely to change the direction of
the force easily.
At the extremity of the wire F is fixed a spiral spring G which in turn is
attached to one end of a swivel catch H turning upon its centre J and having a
square hole recessed in about half through suitable in size for the ordinary carriage
key. On the underside of the swivel H is placed a how spring K in such a position
that it is always acting on the catch end of the swivel H with an upward pressure,
the bow spring is not really a necessity as the same effect may be produced by a
spiral spring placed over the catch. The bow spring K must not be more than
half the strength of the spiral spring G. On the wire F intermediate between the
spiral spring G and the swivel E is firmly fixed a catch L which actuates the
ratchet wheel M which is fixed to the axis of one of the two rollers N N. Round
the two rollers N N is placed an endless sheet of canvas or other material with
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page_text: the names of the stations in the district the train is travelling, placed at certain
fixed intervals to correspond with the pitch of the teeth on the ratchet wheel M.
The two rollers N N and ratchet wheel M are enclosed in a box O. O. with the
exception of a rectangular space P. which allows one name only to be seen at once
as Burnley.
In the present instance the box O. O. is placed near the roof of the carriage, but
it can be placed to suit the convenience of the people using it.
The arrangement in its normal state is shewn by the dotted lines, where the
swivel E is vertical and the catch H is inclined upwards so that it just clears the
door and allows it to be opened freely. When the cord D is pulled either to left
or right, the wire F is raised and with it the catch Land one end of the swivel
catch H but in raising one end of the catch the other is depressed against the
pressure of the bow spring K and the door is locked.
Simultaneously with the locking of the door the catch L pushes round the
ratchet wheel Mone space and displays the name of the next station.
When the tension on the wire F is relieved the bow spring K acts upwards on
the catch H and forces it to the position indicated by the dotted lines and leaves
the door free to open to prevent the ratchet wheel M from turning the wrong way
round on the pressure being relieved the fingers S S are placed in such a position
that no backward tendency is allowed.
In cases of emergency if the door is required to be opened after the guard has
locked it, it may be done by any official having a carriage key by inserting it in
the square hole J and overcoming the resistance of the spiral spring G which
for the purpose is made about twice the strength of the bow spring K acting
in the contrary direction.
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
1st. The two rollers N N covered by endless sheet of canvas or other material.
2nd. Ratchet wheel M and the catch L which actuates the rollers N N.
3rd. The swivel E.
4th. The swivel catch H.
5th. The bow spring K or spiral spring as may be most convenient for parties
using it.
6th. The spiral spring G.
7th. The general arrangement of the whole system.