Improvements in connection with Railway Signalling Apparatus.
Year: 1891

page_text: Date of Application, 2nd Jan., 1891
Complete Specification Left, 25th Mar., 1891-Accepted, 4th July, 1891
PROVISIONAL SPECIFICATION.
Improvements in connection with Railway Signalling Apparatus.
I HENRY STRUDWICK, of 32 Vine Street, Lincoln, Ironmongers Assistant, do
hereby declare the nature of this invention to be as follows:-
A bar of iron hinged to chairs which fasten on side of the existing rails, so that
the bar may have an upward & forward, or vice versa motion. The bar to be
connected to a lever in signal interlocking frame in a manner that before the levers
connecting with the signals can be pulled off the lever connected with the fouling
bar must be pulled over first which would be an impossability if a vehicle was
standing over the fouling bar.
Dated this Want day of
1001
HENRY STRUDWICK.
COMPLETE
SPECIFICATION.
Improvements in connection with Railway Signalling Apparatus.
I, HENRY STRUDWICK, of 32 Vine Street, Lincoln, Ironmongers Assistant, 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 has reference to certain improvements in connection with railway
signalling annaratus
Improvements in connection with Railway Signalling Apparatus.
I, HENRY STRUDWICK, of 32 Vine Street, Lincoln, Ironmongers Assistant, 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 has reference to certain improvements in connection with railway
signalling annaratus
The object of my said improvements being to prevent the fouling of trains.
DESCRIPTION OF DRAWINGS.
Fig. 1, is a side elevation showing my improvements applied to rail.
Fig. 2, is a plan of Fig. 1.
Fig. 3, is a side elevation showing the rod pulled over.
In carrying out the said object I employ a rod or bar A which is hinged to chairs
or plates B (bolted on the rails C) by means of connectors or links D and E, so that
the said rod or bar may have an upward and forward or vice versú motion.
To the connector or link D is pivotted a rod F which at the other end is
connected with a bolt G that moves horizontally with the motion of the rod. The
said bolt G has a slot H for the reception (in one position) of a bolt J which moves
vertically with the motion of a plunger K which is actuated in the required manner
by the wheels of the train or vehicle passing over it. The rod or bar A at one end
is connected to the lever of the signal interlocking frame or signal box by means
of the rod L so that it is necessary, before the signals controlling the line to which
my improvements are applied, can be lowered for the passing of a train, that the
lever controlling such bar must be pulled over first. When a train has been
shunted from one line to the other it will pass over the rod A and depress_the
plunger K and by the same action the bolt J will be depressed into the slot H of
the bolt G so that the rod A would be locked, and it would be an impossibility for
the rod A to be pulled over until the train had repassed the plunger K, and passed
over the rod A, and while the train remained standing over the rod A and thereby
obstructing the line, the signal man could not lower the signals to admit a train to
collide with or run into the obstructing train or train standing over the rod A. or
fouling bar.
If the line was clear the rod A would be pulled over and the bolt G would be

page_text: drawn back by the same action, so that when the train passed over the plunger K
it would not lock the bolt G, and therefore not the rod A, and also after the train
had passed, the bolt G being taper at the point it would push up the bolt J, on
the rod A being put back, so that the bolt J would be ready to lock the bolt G,
and the rod A, should a train pass over it.
The bolt J has a steel spring M on the side which is nearest to the rail to over-
come the recoil of the plunger K so that it will keep up or down as a train passes
over it in either direction.
N are guides for the bolt G, and O guide for the bolt J, the said guides are cast
or affixed, to the plate P which is secured to the rail C.
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
1. In apparatus for railway signalling the employment of hinged or pivotted
rods A secured to the rails C and connected to signal interlocking frames or signal
boxes, so that before the signals controlling the lines can be lowered for the passage
of trains, the levers controlling the bars A must first be pulled over, substantially
as shown and described.
2. The arrangement and construction of apparatus operating as and for the
purposes such as shown and described.
Dated this 24th day of March 1891
JOHN E. WALSH,
Royal Exchange Chambers, Boar Lane, Leeds, Agent for the Applicant.