Combined Hydraulic Brake and Railway Carriage Heating Apparatus.
Year: 1891

page_text: Date of Application, 8th Aug.. 1891
Complete Specification Left. 2nd Apr., 1992-Accepted, 14th May 1892
PROVISIONAL SPECIFICATION.
Combined Hydraulic Brake and Railway Carriage Heating
Apparatus.
THOMAS STEWARD LAPRAIK 7 Charnwood Street, Derby Engineering Student
do hereby declare the nature of this invention to be as follows:-.
A. hydraulic cylinder encased in a steam jacket, or an outer cylinder with a space
between to allow the steam a free passage.
The fore said steam jacket to be fed from the locomotive by a pipe, which
encases the water pipe feeding the inner cylinder thereby preventing freezing. The
fore said steam to be carried on, after circulating round the inner cylinder, either
to next carriage through flexible pipes, or to be returned through coils of pipes
placed in every compartiment or every other one, back into tank of the tender. The
above hydraulic cylinder to be connected to brakes as used at present by the
railway companies.
All hydraulic feed pipes, also flexible ones, to be encased in a pipe at least half
as large again as themselves, for the free passage of steam.
The pressure of water to be supplied by a pump on the locomotive, with a
connection into the tank of tender for relieving the pressure off the brakes.
Dated this 7th day of August 1891.
THOS. S. LAPRAIK.
COMPLETE SPECIFICATION.
Combined Hydraulic Brake and Railway Carriage Heating
Apparatus.
1, THOMAS STEWARD LAPRAIK, of 7 Charnwood Street, Derby, in the County
of Derbyshire, Student Engineer, 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, a combined hydraulic brake and railway carriage heating
apparatus, which consists of a hydraulic cylinder encased in a steam jacket, or an
outer cylinder with a space to allow the steam a free passage. The aforesaid steam
jacket to be fed from the locomotive engine by a pipe which encases the water pipe
feeding the inner cylinder thereby preventing freezing. The aforesaid steam to be
carried on after circulating round the inner cylinder either to next carriage through
flexible pipes or to be returned through coils of pipes placed in every railway
carriage compartment or every other one back into the tank of the tender.
The above hydraulic cylinder to be connected to brakes in the same or similar
way as used at present by the railway companies.
All hydraulic feed pipes also flexible ones to be encased in a pipe at least half as
large again as themselves for the free passage of steam.
The pressure of water to be supplied by a pump on the locomotive engine, with
a connection into tank of the tender for relieving the pressure off brakes.
I attain these objects by the mechanism illustrated in the accompanying drawing,
in which
Fig. 1 is a plan of a part of the locomotive engine with tender and the floor bed
or frame of a railway carriage fitted with the aforesaid apparatus; Fig. 2, is an
elevation of a part of the locomotive engine and tender, and a longitudinal section
of a part of a railway carriage. These figs. are broken off for want of space.
Similar letters refer to similar parts throughout the views.

page_text: To the locomotive engine p I construct a pressure pump c and from the said
pressure pump I connect an hydraulic feed pipe e enclosed in a larger pipe d. The
piped being a steam pipe to prevent the water in the hydraulic feed pipe e from
freezing. The pipes and are carried from the locomotive engine into the
tender o and connected to the railway carriage by the usual coupling. The pipe d
is supplied with a stop cock at each end of the carriage so as to break the steam
and water connection when there is no carriage beyond. At the centre of the
carriage is provided a hydraulic cylinder a with a steam jacket / so that the steam
pipe is connected to each side of the steam jacket and the hydraulic pipe e is
also connected to the hydraulic cylinder a in order to carry on through the whole
length of a train my apparatus.
k
At each end of each carriage I make a connection from the steam pipe d to the
coil connecting pipes for the purpose of supplying steam for heating to the
carriages through the coils,,, beneath the seats and the exhaust to pass into
the tender tank k. The aforesaid pipes are supplied with steam cocks g and i
connected by levers so that when is open is shut thereby turning the steam into
the coils at and back through a flexible pipe into tender tank k
i
At the bottom of the cylinder a is a shaft connected from the ram of hydraulic
The con-
cylinder to bars mm, to operate on the brakes n, n, of both boggies.
necting bars m, m, work on centre pins or pivots above the brakes n, n, and is also
used for releasing pressure off brakes by discharging water into the tender's tank k.
The aforesaid heating apparatus if preferable may be used without the brake.
It will be understood that the foregoing is given by way of illustration, and that
the shapes, material and the various parts may be varied in many ways within the
scope of my invention.
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. The combination of the hydraulic brake and railway carriage heating
apparatus, substantially as herein described and according to Figs. 1, and 2, of the
accompanying drawings.
2. In a hydraulic brake and railway carriage heating apparatus, the combination
of the hydraulic cylinder a steam jacket pressure pump c feed pipe e steam pipe d
stop cocks f, g, i, coils j pipe tank k, with the shaft I connecting bars m, m, and
brakes n, n, substantially for the purpose herein specified and according to the
accompanying drawings.
3. The combination of the hydraulic brake and railway carriage heating
apparatus, constructed of any material, shape or with any modification of the
various parts, substantially as herein described and for the purpose specified.
Dated this 2nd day of April 1892.
J. I. BAIL,
18, Fulham Place, W., Agent for the Applicant.