Improvements in or relating to Railway Signals.
Year: 1892

page_text: Date of Application, 17th Dec., 1892
Complete Specification Left, 15th Sept., 1893-Accepted, 4th Nov., 1893
PROVISIONAL SPECIFICATION.
Improvements in or relating to Railway Signals.
We, EDWARD BARTON of 10 Johnson Street, Permanent-way Inspector, and
WILLIAM SEDDON of 42 Moncrieffe Street, Signal Fitter, both of Bolton in the
County of Lancaster, do hereby declare the nature of our said invention to be as
follows:-
In a
The
This invention refers to improvements in or relating to railway signals and
consists of a signal wire compensator and multiplying wheel for the purpose of
facilitating the movements of signals and ensuring of the action of the same.
suitable fixing is mounted an eccentric wheel or chain pulley attached to the
operating handle by a rod or its equivalent in any convenient manner.
eccentric wheel or chain pulley is provided with grips or catches which come in
contact with a chain coupled to the signal wire, and as the full or long side of the
wheel or pulley presses down the chain during the operation of the same it
multiplies or increases the speed of the signal. The chain passes beyond the
eccentric wheel or pulley and over another pulicy suitably mounted; the end of
the chain being attached to a frame carrying weights which comprises the com-
pensator and ensures of the signal dropping when the operating handle is released
by the pointsman. In close proximity to the eccentric or chain wheel is disposed a
pulley and guide to ensure of the chain being guided correctly to and from the
said eccentric or chain wheel.
Dated the 16th December 1802
EDMUND CHADWICK,
Agent.
COMPLETE SPECIFICATION.
Improvements in or relating to Railway Signals.
We, EDWARD BARTON of 10 Johnson Street, Permanent-way Inspector, and
WILLIAM SEDDON of 42 Moncrieffe Street, Signal Fitter, both of Bolton in the
County of Lancaster, do hereby declare the nature of our said invention and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:—
In a
The
This invention refers to improvements in or relating to railway signals and
consists of a signal wire compensator and multiplying wheel for the purpose of
facilitating the movements of signals and ensuring of the action of the same.
suitable fixing is mounted an eccentric wheel or chain pulley attached to the
operating handle by a rod or its equivalent in any convenient manner.
eccentric wheel or chain pulley is provided with grips or catches which come in
contact with a chain coupled to the signal wire, and as the full or long side of the
wheel or pulley presses down the chain during the operation of the same it
multiplies or increases the speed of the signal. The chain passes beyond the
eccentric wheel or pulley and over another pulley suitably mounted; the end of the
chain being attached to a frame carrying weights which comprises the compensator
and ensures of the signal dropping when the operating handle is released by the
pointsman. In close proximity to the eccentric or chain wheel is disposed a pulley
and guide to ensure of the chain being guided correctly to and from the said
eccentric or chain wheel.

page_text: DESCRIPTION OF DRAWINGS.
Fig. 1 is a longitudinal side elevation of a railway signal complete from operating
bandle to signal post with our improved signal wire compensator and multiplying
wheel applied for the purpose of facilitating the movements of signals and ensuring
of the action of the same, and Fig. 2 is a plan of our invention.
A is the operating handle in the pointsman's cabin or other place; B the signal
post, and C the signal. In any suitable position between the operating handle A
and the signal post B we provide the fixing D fitted with the centre E on which is
mounted the eccentric wheel or chain pulley G, which we term the multiplying
wheel This wheel is attached to the operating handle A by the rod H by means
of the pin I. The multiplying wheel G is provided with the arms J having the
holes K to alter the stroke of the same according to the requirements of the signal.
The multiplying wheel G is provided with the grips or catches L which operate on
the chain M coupled to the signal wire N, and as the full or long side of the said
eccentric multiplying wheel & presses down the chain M during the operation of
the same it multiplies or increases the speed of the signal. The chain M passes
beyond the multiplying wheel G and over the pulley O; the end of the said chain
being attached to the frame P carrying the weights R, which comprises the signal
wire compensator and ensures of the signal C dropping when the operating handle A
is released by the pointsman, by which the signal may be worked with more ease
and accuracy than under the existing system. In close proximity to the multiplying
wheel G we fix the pulley S and guide T to ensure of the chain M being guided
correctly to and from the said wheel G.
This invention acts as a perfect compensator and dispenses with adjusting screws;
the signal wire regulates itself for expansion and contraction, always keeping a
tight wire without any attention from the pointsman or signal fitter. It also
dispenses with heavy weights on tail end of operating levers A, therefore if the
wire N breaks the lever A will not injure the pointsman as is the case under the
present system.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim is :-
:-
In combination with railway signalling apparatus, the use of the signal wire
compensator and multiplying wheel, substantially as described and for the purposes
herein set forth.
Dated the 11th September 1893.
EDMUND CHADWICK, F.I.C.P.A.,
Agent.