Аргосments in Dens, степy Designed for use оц уегострецов.
Year: 1897

page_text: Date of Application, 5th Mar., 1897-Accepted, 10th Apr., 1897
Аргосments in Dens, степy Designed for use оц уегострецов.
I, NELSON FOGG HUMPHREY, of 383 Washington Street, Boston Massachusetts,
United States of America, 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 :-
This invention relates to bells, and has for its object to improve and simplify
the construction of the striking-mechanism, whereby it is particularly adapted
for use on bicycles and similar vehicles.
In the accompanying drawing
Figure 1, is a plan view of the bell,
Figure 2 a plan view of the base and striking-mechanism, the gong being
removed.
Figure 3 is a partial vertical section of the bell,
Figure 4 is a side elevation of the bell, and
Figure 5, a detail of the actuator for the hanımer.
The base a is preferably made circular, and more or less concaved and is
designed to serve as a support for the parts and also as a protection against.
dust entering the bell, and said base has attached to it any suitable clamp by.
which it may be attached to the handle-bar of a bicycle or to any other
article.
A bridge is erected on the base, which consists of two vertical posts b, b', which
rise from the base, and a cross-piece 2 thereon, said posts being located so as to
serve as end supports for said cross-piece.
Rising from the cross piece 2 at a point substantially midway its length is a
screw-threaded stud which is screwed into a boss g¹ formed on the inner side of
a gong g, thereby supporting said gong above the base.
An actuating-lever fis loosely mounted upon the post 61, and projects laterally
through a slot a cut in the base a, and is formed at the end with a finger-piece f¹,
and said actuating-lever is held in its normal position of rest by a strong spiral
spring s, which encircles the post 61 and is attached at one end to the actuating-lever
and at the opposite end to the cross-piece, and thus acts torsionally.
The hammer h is made T-shape, and is loosely mounted upon the post 6, turning
thereon as a pivot.
A leaf-spring s is attached at one end to the actuating lever f, and at its opposite
end passes through a slit h formed in the hub of the hammer and engages the post b,
and said spring is made much longer than the distance between said post and
actuating-lever so as to curve to one side or the other of a straight line
representing the shortest distance between said parts, and said spring is set edgewise
to the base.
When the actuating-lever is moved in the direction of the arrow Figure 2,
against its torsional return spring s, the leaf-spring s will be compressed and moved
toward the centre of the cross-piece 62, and after passing such centre its curvature
will be suddenly reversed as shown in dotted lines Figure 5, quickly turning the
hammer from the full to the dotted line position, and causing it to strike a blow,
and when said actuating-lever is released, its return spring s, which is made
stronger than the hammer-actuating springs will return said actuating-lever f to
its normal position, and in so doing will again reverse the curvature of the spring st,
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page_text: restoring it to its normal position and by the sudden reversal of the curvature of
said spring the hammer will be caused to strike a second blow.
It will thus be seen that the hammer strikes two distinct blows, each time its
actuating-lever is operated.
The post is cut away at one side opposite the slit in the hub of the hammer, to
present two radial faces, and the end of the hammer-actuating spring which passes
through said slit engages the post at said cut away portion, and said radial faces
limit the movement or throw of said spring in opposite ways.
A rebounding spring e is provided for the hammer, it being represented as
attached at one end to the cross-piece 62, and at the other end to the hammer, and
said rebounding spring acts upon the hammer when the latter is moved to strike a
blow in either direction.
.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
:-
1. In a bell, the combination of a gong, a pivoted hammer, an actuating-lever,
and a curved spring connecting said actuating-lever and hammer, the movement of
the actuating-lever reversing the curvature of said spring to thereby operate the
hammer, substantially as described.
2. The striking-mechanism for bells comprising a pivoted hammer, an actuating-
lever and a curved spring connecting said hammer and actuating-lever, the
movement of the actuating-lever reversing the curvature of said spring to operate
the hammer, and a rebounding spring for said hammer, substantially as described.
3. The base, the gong, the hammer, the curved spring adapted by reversal of its
curvature to operate said hammer and strike a blow, an actuating-lever to reverse
the curvature of said spring, and an independent spring for returning said actuating-
lever to its normal position which is made stronger than the hammer-actuating
spring, to thereby return said spring to its normal position and to strike a second
blow, and a rebounding spring for said hammer, substantially as described.
4. The hammer, a post upon which it is loosely mounted,, a pivoted spring-
controlled actuating-lever, a curved spring attached at one end to said actuating-lever,
its opposite end passing through a slit formed in the hub of said hammer and
engaging the post upon which said hammer is pivoted, substantially as described.
5. The hammer, the post upon which it is loosely mounted, cut away to present
two radial faces, the pivoted spring-controlled actuating-lever, the curved spring
attached at one end to said actuating-lever, its opposite end passing through a slit
formed in the hub of said hammer and engaging the post at its cut-away portion,
movement of said spring in opposite ways being limited by said radial faces,
substantially as described.
Dated this 5th of Mal 1007
HASELTINE, LAKE & Co.,
45 Southampton Buildings, W.C., Agents for the Applicant.