Improvements in Apparatus for Automatic Fog Signalling on Railways.
Year: 1895

page_text: Date of Application, 7th Feb., 1895-Accepted, 23rd Mar., 1895
COMPLETE SPECIFICATION.
Improvements in Apparatus for Automatic Fog Signalling on
Railways.
We, GEORGE COUSENS, of Alexandra Road, Shipley, in the County of York,
Carriage Inspector, and CHARLES GRAYSON of Brearton Street, Bradford, in the
said county, Gentleman, 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 :-
The object of this invention is to arrange apparatus that may be readily applied
to a railway track and to locomotive engines such as used on railways, and in such
a manner that, when the portion of the apparatus on the track is raised and the
locomotive on running over same in either direction, the apparatus on the
locomotive is operated, and the attention of the driver and other persons in charge
of the train called to the location of the train in relation to the signal box.
In describing our invention in detail, reference is made to the accompanying
sheet of drawings in which
Fig. 1 represents a diagramatic view of the front plate of a locomotive engine.
Fig. 2 is a plan of a portion of the track drawn to a reduced scale.
Fig. 3 a side elevation of a portion of the bars laid diagonally between the rails
of the track.
Fig. 4 a view of the bars showing the top bar lowered resting on the bottom
one, and
Figs. 5 and 6 details.
Similar letters indicate similar parts where they appear.
The front plate of a locomotive engine is indicated by the letter A. and the foot-
plate on which the driver and stoker stand by B. the lines or rails of the track are
shown at C. C. between which at some distance from the signal box are fixed in a
diagonal direction, two bars hinged together, the bottom bar D. is secured to the
sleepers to which the chairs of the rails C. are fixed, and the said bar D. is attached
by a number of links E. to a top bar D' both bars being by preference of the tee
section; but it will be obvious that other sections may also be applicable.
The top bar D' may be attached to the signal box by rods and levers similar
to those now used in connection with the operation of points and signals, and in
such a manner, that the said top bar D' may be drawn in the direction of arrow
and raised to the position shown by Fig. 3 or the said top bar D¹ may be raised
into that position by a chain attached thereto at one end and passed over a pulley
with a weight secured to the end, or it may be kept elevated by springs placed
between the said bars D. and D'.
Attached to the locomotive and between the rails of the track is a lever F.
mounted on a fulcrum pin G. secured to some convenient part of the engine frame,
one end of the said lever extending downwards, and the other in an upward
direction, the top of the upper portion projecting in either direction at H.
Resting upon the extended top H. is a bar J. having similar extended ends.
This bar is capable of sliding within a support K. and is coupled to the lever L.
which is mounted on a fulcrum pin at L'. The extended end of bar J. is kept in
contact with H. by a weight suspended to end of lever L. or a spring may be
utilized for the purpose.
Attached to the opposite end of the lever L. is a bar N. mounted within staple
brackets in a manner that it is free to slide therein. The bar is provided with
projections O. and P. for the purpose as hereinafter described.

page_text: It will be readily understood that on the locomotive fitted in the manner
described passing over the portion of track in which the bars D. and D¹ are placed,
the lever F. on coming in contact with the side of the diagonally placed top bar D'
the said lever will be operated on its fulcrum pin G. and cause one side of the
projecting ends H. to raise the bar J. which in turn operates the lever L. pulling
the bar N. in a downward direction as indicated by the arrow.
On the bar N. moving in the direction described, the projection O. on same
strikes the end of lever Q. mounted on fulcrum pin at Q' the opposite end of the
lever coming quickly in contact with the bell crank lever R. causes the latter to
strike the gong S. thereby drawing the attention of the driver of his approach to
the signal box.
In addition to the gong S. being struck, the projection P. at top of bar N.
comes in contact with the lever T. mounted on fulcrum pin at T'. The opposite
end of this lever at T2 is connected in any suitable manner by one or more rods or
levers either separately or combined with the lever of a boiler steam whistle tap,
so that when the lever T. is operated as described, the tap of the whistle is opened
and held in that position by the catch bar U. supported on a pin at V.
When the lever T. is in the position shown on drawing, it supports the catch
bar U. and when the said lever is operated in the manner described, the catch
bar U. falls by gravity into a more perpendicular position, and by the notch X.
resting on the top of lever T. it is held and the whistle kept blowing until the
catch bar is liberated from the lever T. and the catch bar and lever T. moved
back to the position shown by drawing.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is,
1. The general combination of the parts forming the complete apparatus
arranged substantially in the manner and for the purpose as hereinbefore set
forth.
2. The combination of the levers F. and L. the intermediary connections with
the gong S. and the diagonally placed bars D. and D' substantially in the manner
and for the purpose as hereinbefore described.
3. The combination of the levers F. and L. and intermediary connections with
an ordinary tap of a steam whistle and the diagonally placed bars D. and DI
substantially in the manner and for the purpose as hereinbefore described.
Dated this 5th day of February 1895.
JOHN WAUGH,
Agent.