Improvements in Railway Signalling Apparatus.
Year: 1892

page_text: Date of Application, 22nd Nov., 1892
Complete Specification Left, 24th May, 1893-Accepted, 15th July, 1893
PROVISIONAL SPECIFICATION.
Improvements in Railway Signalling Apparatus.
We, JOSEPH BENTLEY & JOSEPH PALMER, trading as Silversmiths & Silver-
plating Co. 7 Palace Street Buckingham Gate London S.W. Silversmiths do
hereby declare the nature of this invention to be as follows:-
The object of this invention is to cause a bell placed near a crossing or in the
signal box to ring when a train or engine has passed a prearranged spot or place.
To carry out this object we provide a suitable mechanical & electrical arrange-
ment, so that when it is placed in connection with the rails the flauge of the wheels
depress a spring and lever, the end of which acts against a metal contact in
the circuit of an electric current which rings a bell placed in any convenient and
desired place.
To carry out this invention we provide a lever which is pivotted upon a rest or
support near its centre, one end of this lever which is inside a box, rests upon a
spring immediately over two contact pieces. The outer end of this lever or arm
provided with a pin which works in a hole in a plate which is bolted to the
inside of the line. This plate carries a spring plate which is slotted at either end,
so as when any pressure is exerted upon it by the flange of the wheel or wheels it
can elongate. In connection with the aforesaid lever we provide a weighted catch
piece, so as when the lever is depressed by the action of the flange of the wheels,
acting upon the aforesaid spring, and forcing the aforesaid lever down, it is locked
down, pressing up one of the aforesaid contact pieces upon the other until released
by the signalman by disconnecting the locking catch and allowing the lever to fall
out of contact to its position of rest.
Dated this 22nd day of November 1892.
E. EATON,
Patent Agent.
COMPLETE SPECIFICATION.
Improvements in Railway Signalling Apparatus.
We JOSEPH BENTLEY & JOSEPH PALMER trading as Silversmiths & Silver-
plating Co. 7 Palace Street Buckingham Gate London S.W. Silversmiths 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 cause a bell placed near a crossing or in a
signal box to ring when a train or engine has passed a prearranged spot or place.
To carry out this object we provide a suitable mechanical & electrical arrange-
ment, so that when it is placed in connection with the rails the flange of the
wheels depresses a spring and lever, the end of which acts against a metal
contact in a circuit of an electric current which rings a bell placed in any
convenient and desired place.
To carry out this invention we provide a lever which is pivotted upon a rest or
support near its centre, one end of this lever which is inside a box, rests upon a
spring immediately over two contact pieces. The outer end of this lever or arm
is provided with a pin which works in a hole in a plate which is bolted to the
inside of the line. This plate carries a spring plate which is slotted at either
end so as when any pressure is exerted upon it by the flange of the wheel or wheels
it can elongate. In connection with the aforesaid lever we provide a weighted

page_text: catchpiece, so as when the lever is depressed by the action of the flange of the
wheels, acting upon the aforesaid spring, and forcing the aforesaid lever down,
it is locked down pressing up one of the aforesaid contact pieces upon the other,
until released by the signalman, by disconnecting the locking catch and allowing
the lever to fall out of contact, to its position of rest.
Referring to the annexed drawing,
Figure 1 is a plan view of my invention
Figure 2 sectional elevation of same.
Referring to Figure 1 a is the rail or line. is a plate carrying the curved
spring c which is attached to the plate 6 by bolts or studs d which slide in the
slots e, e. f is a lever pivoted at & controlled by the spring h. i is a catch
piece counterbalanced at j and having an inclined surface & pivoted at m to a
support. & are two spring contact pieces. The end of the lever f is con-
nected in any convenient manner such as by rivets or screws e' to the spring c.
The two spring contact pieces 1, & l' are connected to the signal box & are in a
circuit with a bell or signal & battery. The action is as follows. When the
spring c is depressed by the wheel of a passing train, the end n of lever causes
the contact piece to make contact with ', thus ringing the bell or signal in the
desired station. The lever is retained in this position by the catch piece i until'
the cordo is operated, thus freeing the catch piece & allowing the lever f to
return to the normal position. p is a pin attached to the end of lever fand
engaging in a hole cut in the plate 6 which ensures the lever f rising & falling
in a vertical direction. q is a convenient casing for protecting the mechanism.
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.
1. The combined arrangement of the various parts substantially as described and
illustrated in the drawings.
2. In railway signalling apparatus a plate attached to the line or rail and
carrying a curved spring attached to said plate by bolts or studs which slide in
slots in the plate; said spring being attached to a pivoted lever, one end of which
operates a contact piece for closing or opening an electric circuit; a pivoted catch
piece for engaging with leverf controlled by a weight & released by a cord in
combination with a bell or signal substantially as herein described and illustrated.
Dated this 24th day of May 1893.
E. EATON,
Agent for Applicants.