Improvements in Driving Chains and Gear applicable to Driving Cycles, Motor Cars, and other Machinery.
Year: 1897

page_text: Date of Application, 25th Aug., 1897-Accepted, 25th Sept., 1897
COMPLETE SPECIFICATION.
Improvements in Driving Chains and Gear applicable to Driving
Cycles, Motor Cars, and other Machinery.
I, FREDERIC MARDEN WAKEHAM, of 1 Summer Row, Birmingham, in the County of
Warwick, Merchant, do hereby declare the nature of the said invention as
communicated to me from abroad by Giovanni Antonio Philipon, of Lima, Peru,
South America, Watchmaker, and in what manner the same is to be performed to be
particularly described and ascertained in and by the following statement :-
My invention has for its object improvements in driving chains and gear applicable
to driving cycles, motor cars and other machinery by which I minimise the friction
and thus reduce the power required for driving.
In order that my invention may be more clearly understood and easily carried into
practical effect I have appended hereunto a double sized sheet of drawings upon which
I have illustrated examples of my improved driving chain and gear wheel.
Figure 1 is a front elevation of my chain wheel and chain showing a portion of the
chain and wheel in section.
Figure 2 is a plan view of the chain wheel W.
Figure 3 is a sectional detail of one of the chain link connections.
In carrying my invention into practice I construct my chain from the hollow balls
or spheres A connected together by the links B. These balls are formed in two
halves and one of the enlargements b' on the ends of the links B is made detachable
so that that end of the link can be passed through one of the holes a¹. The enlarge-
ment b' is now fixed on to this end of the link and the next link passed through the
hole a¹ in the opposite half of the sphere, leaving the enlargement in the interior.
These half spheres are formed with a continuous rebate or notched rebate with holes
or notches in the washer or disc a² which is fixed between and they are then rivetted
together or they may be screwed or otherwise secured together. All the links are
connected together in a like manner. It will thus be seen that each connecting link
is free to move upon its enlargement enclosed in the sphere.
on the
My wheels W have a number of holes w² or cupped recesses formed
periphery at stated distances apart into which the balls A fit, and I also form the
groove w around the centre of the periphery parallel with the sides for the connecting
links to fit into, as clearly shown at Figure 1.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
CLAIMS.
First. Driving chains constructed of links such as B connected together by hollow
First. Driving chains constructed of links such as B connected together by hollow
spheres or balls such as A constructed in two parts in the manner substantially as
herein before described and as shown upon the accompanying sheet of drawings.
Second. Gear wheels for driving chains as claimed in the preceding claim having
holes or cupped recesses formed at equal distances around their periphery and a
groove also formed at the centre thereof in the manner and for the purpose
substantially as hereinbefore described and as shown upon the drawings.

page_text: Third. The improvements in driving chains and their gear applicable to driving
cycles, motor cars and other machinery substantially as described and shown.
Dated this 24th day of August 1897.
GEORGE BARKER,
77, Colmore Row, Birmingham, Agent for Applicant.