Improvements in or connected with Vacuum Brakes for Railway Vehicles.
Year: 1891

page_text: Date of Application, 27th Oct., 1891
Complete Specification Left, 27th July, 1892-Accepted, 22nd Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in or connected with Vacuum Brakes for
Railway Vehicles.
I, THOMAS BORE of 4 Ropemaker Street, Finsbury Pavement, London,
Gentleman, do hereby declare the nature of my said invention to be as follows :-
My invention has for its object improvements in or connected with vacuum
brakes for railway vehicles by which the brake may be operated upon an
emergency as an alarm from the interior of each and every compartment and this
I effect in an easy effectual and cheap manner and in such a manner that it must
be obvious to the guard which particular compartment the brake has been
applied from.
In carrying my invention into effect I form a valve which is connected with train
pipe having a bolt spindle kept closed by spiral springs and so placed as to be
readily operated from the interior of the compartment thus admitting air and
applying the brake on all the vehicles. One valve is utilized for two compartments
being operated by pulling a handle or other suitable attachment on the one side
and by pushing a button or knob on the other. Connected with the valve and
running to the outside of the carriage is a bolt having at its outside end an
indicator which upon the valve being operated from the inside of the compartment
is caused to project this being effected preferably by a double toothed incline one
half on the valve push and one half on the bolt. The valve is retained open by
the bolt being kept up to its work by a spiral spring and thus the valve may only
be closed from the outside of the carriage by the guard pulling the bolt still
further out by which means no one can tamper with the valve without being
detected.
Dated this and dow of Wah 1900)
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent.
COMPLETE SPECIFICATION.
Improvements in or connected with Vacuum Brakes for
Railway Vehicles.
I THOMAS BORE of 4 Ropemaker Street Finsbury Pavement London
Gentleman do hereby declare the nature of my said 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 has for its object improvements in or connected with vacuum
brakes for railway vehicles by which the brake may be operated upon an
emergency as an alarm from the interior of each and every compartment and this
I effect in an easy effectual and cheap manner and in such a manner that it must
be obvious to the guard which particular compartment the brake has been
applied from.
In carrying my invention into effect I form a valve which is connected with
train pipe having a bolt spindle kept closed by spiral springs and so placed as to
be readily operated from the interior of the compartment thus admitting air and
applying the brake on all the vehicles. One valve is utilized for two compartments
being operated by pulling a handle or other suitable attachment on the one side
and by pushing a button or knob on the other. Connected with the valve and
running to the outside of the carriage is a bolt having at its outside end an

page_text: indicator which upon the valve being operated from the inside of the compartment
is caused to project this being effected preferably by a double toothed incline one
half on the valve push and one half on the bolt. The valve is retained open by
the bolt being kept up to its work by a spiral spring and thus the valve may only
be closed from the outside of the carriage by the guard pulling the bolt still
further out by which means no one can tamper with the valve without being
detected.
In order that my invention may be clearly understood and more easily carried
into practise I have appended hereunto a double sized sheet of drawings upon which
I have fully illustrated the nature of my said improvements.
Figure 1 is a broken off sectional plan of the divisions between two com-
partments A and B.
Figure 2 is an elevation looking from the inside of compartment A.
Figure 3 is a vertical sectional elevation.
Figure 4 is an elevation looking from the inside of compartment B.
The valve D is connected with the train pipe by means of the connecting
pipe E and is kept closed upon its seating by the spring d¹ until required to be
used when by pulling the knob a' in the one compartment or pushing the knob 61
in the other compartment the valve is removed from its seating d, and the air
is admitted. Attached to the valve D are the inclined faces F which as the valve
moves press back the inclined faces on the rods f¹ which rods are also operated
in an outward direction until the knobs f project thus indicating from the outside
of the carriage where the alarm has been operated. By means of the jagged
surface of these inclines the valve D is prevented from again returning to its
seating except by operation from the outside of the carriage when by means of
pulling the knob f further out the valve D is released and returns to its seating
by means of the spring d¹.
It may be fitted to any vacuum brake without interfering with the action of the
brake in any way being connected to the main train pipe and fitted into T coupling
and carried up into the inside of the compartment against the wood partition H
to about the centre. An elbow is fitted into the pipe into which is screwed
the emergency valve D and a full or partial application is made by pulling out the
knob a¹ in one compartment or pushing the knob b' in the compartment B on the
other side of the partition, thus, one valve works two compartments and a full
application of the brake is made by pulling out or pushing in the knobs as far as
they will go which is equal to the application made by the driver or guards even
if the engine remains under full steam & will stop the train in a few hundred
yards. At the same time it indicates outside at each side of the compartments
where the brake has been applied and the noise inside of the compartment would
at once attract the passengers attention in the adjoining compartment while they
would also see the knob had been pulled or pushed.
It can only be released from the outside of the compartment on each side by
pulling the indicator or indicators farther out by means of the knobs f which will
require one or two guards, thus no one can tamper with it without being detected
and immediately the indicator or indicators are pulled out and released they shoot
back into their original position of their own accord by means of the spiral
springs and the valve D falls on to its seating and everything is again in good
condition. Even though the connections to the cylinder reservoir is cut off any
one vehicle through defect and only the through pipe connection remains the valve
will do its work as described by admitting air into the train pipe and opening all
the guards valves & automatically applying the brake immediately.
meets every requirement of the present working of the automatic vacuum brake
and is a great acquisition to the public also to the brake, as by more means of air
being admitted into the train pipe the quicker will the application be.
Thus it
The position of the valve prevents the frost affecting it in any way and it can
be fitted to work in any position.
It will be understood that I may vary the details considerably without departing

page_text: from the nature of my said invention & the whole of it may be similarly cased to
prevent any tampering with.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what
I claim is :-
The valve D connected with the main train pipe operating with indicators f
substantially such as and for the purpose herein set forth and shewn upon the
accompanying drawings.
Dated this 26th dor of Inl 180
GEO.
BARKER,
77, Colmore Row, Birminghan, Agent.