Improvements in Bicycle and like Bells.
Year: 1897

page_text: Date of Application, 7th Dec., 1897-Accepted, 8th Jan., 1898
Improvements in Bicycle and like Bells.
(A communication from abroad by JOHN BATCHELDER HUMPHREY, of the City of
Boston, in the County of Suffolk, State of Massachusetts, United States of
America, Mechanic.)
I, ALFRED GEORGE BROOKES, of 55 & 56 Chancery Lane, in the County of London,
Chartered Patent Agent, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
This invention relates more especially to that class known as double stroke bells,
and the object of the same being to obtain a sharp, decisive blow, and the imme-
diate retraction of the hammer, from the edge of the bell, also to lessen, and simplify
the parts, and the use of but one spring in its operation.
As shown in the drawings Fig. 1. is a top or plan view, with the bridge for
supporting the bell, broken away, and the bell removed, but shown in dotted lines,
and the hammer, lever, and spring, in their normal position.
Fig. 2 is a top or plan view, as shown in Fig. 1 with the tension on the hammer
spring, prior to its being released by the trip on the lever.
Fig. 3 is a top or plan view with the tension on the hammer spring prior to its
being released by the trip on the lever, and in opposite, operating position to Fig. 2.
Fig. 4 is a perspective view, with the bell broken away.
Figs. 5 and 6 are detail views of the operative parts.
As shown on the drawing A, is a section of the handle bar, to which is secured
the base B of the bell by a suitable clamp, a.
Forming part of the base or secured thereto is a bridge, a¹ having a screw
threaded portion a², for supporting the bell, and on the base is a projection a³.
The lever, is pivoted on a stud or projection a³, secured on the base of the
bell, on an end a, of the said lever made in a suitable shape to be easily operated,
the opposite end a, having two trips or cam surfaces a³ and a³ for the tripping of
the hammer spring, and at a point a¹0, is a projection a12, to engage with the loop
on the hammer spring.
To limit the movement of the lever the base is cut away at the point a¹³, forming
two shoulders.
On the stud or projection a, is the coiled spring a, one end as, provided with a
hammer a, and made a part of the coiled portion of the spring is a loop a", for
engaging with the projection 2, on the lever a for the purpose of giving the
hammer spring the required tension prior to its being released by the trips on the
lever, and the opposite end a18, is held against a projection a", and through its con-
nection by the loop a", with the projection a¹, a sufficient tension is obtained for
returning the lever a to its normal position.
It will be seen that by pulling the lever in the direction of arrow 10, the hammer
spring will receive tension through its connection with the projection a¹, on the
lever and that the lever at, will also at the same time be receiving tension and
when the trip or cam a³, has raised the hammer spring a¹5, a sufficient distance so

page_text: as it will clear the projection a³, the hammer spring will fly over and strike the
edge of the bell and immediately rebound to the dotted line position a20, and upon
the releasing of the lever it will be seen that the lever will have received enough
spring tension from the end a¹8, in engagement with the projection a¹, to return
the said lever to its normal position, and in so doing the trip or cam a³, will operate
on the hammer spring a¹5, in the same manner, and upon striking the bell will
return to the dotted line position a².
Although I have described my invention as applied to a bicycle bell, I do not
desire to limit myself, to the use of my device for bicycle bells only, as the same
could be used if desired for other kinds of bells.
my said
Having now particularly described and ascertained the nature of
invention, and in what manner the same is to be performed, I declare that what I
claim is:
1. In combination with a bicycle or like bell, the base with its projections, the
lever with its projection, engaging with a hammer spring, substantially as described
and for the purpose set forth.
2. In combination with a bicycle or like bell, the base with its projections, the
lever with its two trips, and projection, engaging with a hammer spring, substan-
tially as described and for the purpose set forth.
3. In combination with a bicycle or like bell, the base with its projections, the
lever with its two trips, and projection, engaging with a hammer spring and
giving the hammer spring a tension, prior to its being released from the projection,
on the base, by the trip on the lever, substantially as described and for the
purpose set forth.
4. In combination with a bicycle or like bell, the base with its projections, the
lever with its two trips and projection, engaging with a hammer spring, and giving
the hammer spring a tension prior to its being released from the projection on the
base of the bell, by the trip on the lever, one end of the hammer spring connecting
with a projection on the base of the bell, thereby giving the lever its reverse
movement, substantially as described, and for the purpose set forth.
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1007
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WM. BROOKES & SON,
55 and 56 Chancery Lane, London, Agents for the Applicant.
WM. BROOKES & SON,
55 and 56 Chancery Lane, London, Agents for the Applicant.