Improvements in Chains for Driving Machinery, specially applicable to Cycles, Motor Cars, and such like Vehicles, and in the Manufacture of the same.
Year: 1896

page_text: Date of Application, 10th Sept., 1896--Accepted, 7th Nov., 1896
COMPLETE SPECIFICATION.
Improvements in Chains for Driving Machinery, specially
applicable to Cycles, Motor Cars, and such like Vehicles,
and in the Manufacture of the same.
We, ERNEST CHARLES BRADLAUGH SMITH of 13 Avenue Road, Aston,
Birmingham, in the County of Warwick, Machinist, and SAMUEL BONSOR of
Victoria Road, Tamworth, in the County of Warwick, Accountant, do hereby
declare the nature of our said invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
Our invention has for its object improvements in chains for driving machinery
specially applicable to cycles, motor cars and such like vehicles and in the
manufacture of the same by which greater certainty is ensured against accident
being caused from the links riding upon the points of the driving or driven
sprocket wheels.
In order that our invention may be clearly understood and more easily carried
into practical effect we have appended hereunto a sheet of drawings illustrating
the same from which the principle will be clearly understood. We are quite
aware that it has been previously proposed to level the internal edge of the link
as well as to make cranked recesses in the same but we find that both these
modes require considerable force and interferes with general or internal condition
of the metal, whereas our invention avoids this and we simply bend the links
without doing any forging such as we have named. We do not however, confine
ourselves to the exact configuration shown as this may be varied within certain
limits.
Figure 1 is a side elevation of two lengths of links L of our new chain brought
together with their connecting blocks K being formed and made according to our
invention on one side of the links only.
Figure 2 is a cross sectional elevation on the line X, Y showing the enlarged
distance between our links L and the general formation where the teeth of the
sprocket wheel would enter.
Figure 3 is a plan of the two links L with their parts as brought together in
Figure 1.
Figure 4 is a side elevation of a pair of single links with our particular formation
applied to both edges of the link L.
Figure 5 is a cross section and elevation through the two links shown at the
previous figure.
Our invention consists in forming the links of our chains with notches such
as S, S, about the distance from the ends as shown and these notches may be
made on one side only of the links L as seen at Figures 1 and 2 or on both sides as
seen at Figures 4 and 5. The formation of the links with these notches enables
us to conveniently bend outwards the projecting portion 62 as in Figures 1 and 2 or
the portions 2 and 3 as shown at Figures 4 and 5 without interfering materially
with the constitution or molecules of the metal comprising the section of the links
and the formation is accomplished with about the same amount of sheering or
cutting as in the links now in general use. If it is desired to lighten these links or
to ornament them we may perforate them as shown by the holes H in the right
band link Figure 1 or as shown at Figures 4 and 5 without materially weakening
the strength of the chain.

page_text: 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 :-
The improvements in chains for driving machinery specially applicable to
cycles, motor cars, and such like vehicles and in the manufacture of the same
consisting essentially of the formation of the links L with the gaps S in one or
both sides and bending the parts 6, or 63 and 63 outwards whether perforated with
the hole H or not, substantially as herein set forth and as shown upon the
accompanying drawings.
Dated this 9th day of September 1896.
GEORGE BARKER,
77 Colmore Row, Birmingham, Agent.