Improved Arrangement of Apparatus for Safely Locking the Doors of Railway Carriages while in Motion.
Year: 1892

page_text: Date of Application, 20th Apr., 1892
Complete Specification Left, 20th Jan., 1893-Accepted, 4th Mar., 1893
PROVISIONAL SPECIFICATION.
Improved Arrangement of Apparatus for Safely Locking the Doors
of Railway Carriages while in Motion.
I, THOMAS GASSON, of St. James Road, East Grinstead, Sussex, Auctioneer,
do hereby declare the nature of this invention to be as follows:-
This invention has for object, safely or extra locking of railway carriage doors,
independently of the usual locks or catches.
For the purpose of my invention, I arrange a common cranked rod, or provide
a plain rod with cranks for operating links or other rods, to which locking levers
are connected, said levers when the rod is moved, such as when leaving a station,
being thrust into slots in the several doors on one side of a railway carriage for
locking them in a safe condition until the train arrives in a station when a reverse
motion of the rod releases all the extra fasteners, leaving the doors to be opened in
the ordinary manner.
The safety locking may be effected by hand or automatically from near the
platform on leaving a station and be similarly released on approaching a station or
on entering one.
By this invention railway carriage doors can be kept safely locked if desired
until a train has fairly stopped at a platform, and a guard or porter can fix all the
doors as the signal is given to depart.
Persons would by this invention be prevented from entering a train in motion at
starting, and also leaving it before it has stopped.
Dated 20th April 1809
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for T. Gasson.
COMPLETE SPECIFICATION.
Improved Arrangement of Apparatus for Safely Locking the Doors
of Railway Carriages while in Motion.
I, THOMAS GASSON, of St. James Road, East Grinstead, Sussex, Auctioneer,
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 :-
This invention has for object, safely or extra locking of railway carriage doors,
independently of the usual locks and catches.
The invention will be clearly understood by the annexed drawings.
For the purpose of my invention, I arrange a common cranked rod A, Figure 1,
or provide a plain rod with cranks for operating links B, or sliding rods C,
Figure 2, to which locking levers D, D, are connected, said levers D, D, when the
rod A or C is moved, such as when leaving a station, being thrust into slots in the
several doors E on one side of a railway carriage F for locking them in a safe
condition until the train arrives in a station when a reverse motion of the rod A
or C releases all the extra fasteners, leaving the doors to be opened in the
ordinary manner.
The safety locking may be effected by hand acting on the hand lever G, or
automatically from near the platform on leaving a station and be similarly released
on approaching a station, or on entering one. If the slide rod C be employed it is
readily operable by the bell crank appliance H shown at Figure 3.

page_text: By this invention, railway carriage doors can be kept safely locked, if desired,
until a train has fairly stopped at a platform, and a guard or porter can fix all the
doors as the signal is given to depart.
Persons would by this invention be prevented from entering a train in motion at
starting, and also leaving it before it has stopped.
I have referred to each carriage being operated separately, but where trains of
coaches are closely connected as on some railways, the rod A. or C can be coupled
by the fork I, Figure 2.
By making the lever catches D, as indicated at Figure 4, the doors can be
closed after the rod C, Figure 2, has been operated to hold the doors already
closed and locked. For this purpose, the catches D can be pivoted to lugs C¹ and
by curving the nose c, the bottom of the door in closing would depress the catch
which the weight & would return, and so lock the door.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The means or appliances by which railway carriage doors can be kept safely
locked while in motion, as described and shown, either through a cranked rod A,
or by a slide rod C, and lock levers D, D, as set forth.
1000
H. GARDNER,
Patent Agent, 166, Fleet Street, London,
Agent for the said Thomas Gasson.