Improvements in and connected with Bells for Signalling Purposes.
Year: 1888

page_text: Date of Application, 23rd Nov., 1888
Complete Specification Left, 21st Aug., 1889-Accepted, 21st Dec., 1889
PROVISIONAL SPECIFICATION.
Improvements in and connected with Bells for Signalling Purposes.
I CHARLES PARKIN of Liversedge in the county of York Colliery Engineer do
hereby declare the nature of this luvention to be as follows:-
My invention consists of a gong or bell mounted on a stud attached to a plate
which can be screwed or fixed in any suitable position, upon the stud between the bell
or gong and the plate is a disc or wheel, upon this disc is a double tumbler catch,
and a finger working within a slot in the plate to regulate the amount of movement
of the disc and catch.
Mounted on a stud upon the plate is the hammer or striker, which is pivotted in
position upon the stud, and has a finger which when in position abuts against a stop
or projection upon the plate, it being returned to this position preferably by a coiled
spring attached from the finger to the stud, in some cases where required a coiled
spring is placed upon the stud of the gong to return the disc after striking, the disc
is provided with suitable arms to which may be attached wire or levers from any
direction; the apparatus being applicable to the signalling apparatus of mines,
railways, tramcars, and other purposes.
The action is as follows, the disc is moved by any suitable means and the tumbler
catch pushes back the hammer by means of the finger; as it passes the finger is
released and the hammer strikes the gong, the disc being heavier at one side than the
other returns and the tumbler catch resumes its position, or the disc can be returned
by spring to ensure more rapid action. Indicators may be attached to the signalling
apparatus.
COMPLETE SPECIFICATION.
Improvements in and connected with Bells for Signalling Purposes.
1, CHARLES PARKIN, of Liversedge, in the County of York, Colliery Engineer,
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:

page_text: Mounted on a stud H upon the plate is the hammer or striker J, which is pivotted
in position upon the stud H, and has a finger K, attached thereto the finger K abuts
against a stop or projection L, (upon the plate C) as the disc D is revolved the
finger E depresses the finger K, pushing back the hammer J and as it passes releases
it, thus striking the bell; it being returned to its position preferably by a coiled
spring M attached from the finger K to the stud H.
In some cases where required a coiled spring O is placed upon the stud B of the
gong A to return the disc D after striking; the disc Dis provided with suitable
arms N to which may be attached wire or levers from any direction.
The action is as follows:-For pit signals, the hanger-on pulls his lever at the pit
bottom the necessary number of signals, this rings the bell and each stroke is
registered by the Index on the plate. For tramcars and the like, the disc 1) is moved
by any suitable means, and the tumbler catch E pushes back the hammer J, by means
of the finger K, as it passes the finger K is released, and the hammer J strikes the
gong A, the disc being heavier at one side D, than the other, returns, and the tumbler
catch E resumes its position, or the disc can be returned by spring O to ensure more
rapid action. Indicators Pinay be attached to the signalling apparatus.
'S is the catch at one end of lever R pivotted to the plate C, S₁ is a finger upon
the lever R, the said finger passing to a projection on the underside of the catch S²,
the catch S² being pivotted to the underside of the finger K, T is the catch wheel, by
which every time the finger K is pushed back and released, the bell rings, the
indicating finger P¹ has moved forwards one number; when the finger reaches the
end of the indicator, the lever R is pulled, which releases the catches S and S2, and
the indicator finger P¹ is returned by its spring to the cypher.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what ]
claim is:-
1. The general arrangement and construction of apparatus, substantially as and for
the purposes shown and described.
2. The disc or wheel D, double tumbler catch E, and finger F within the slot G,
of the plate C, as and for the purposes substantially as shown and described.
3. The plate C having a slot G as and for the purposes substantially as described.
Dated this Eigth day of Annet 1880
JOHN E. WALSH,
Crossley Street, Halifax, Agent for the Applicant.