Improvements in and relating to Driving Chains, and Chain Wheels for Velocipedes.
Year: 1897

page_text: Date of Application, 29th Jan., 1897
Complete Specification Left, 29th Oct., 1897--Accepted, 15th Jan., 1898
PROVISIONAL SPECIFICATION.
Improvements in and relating to Driving Chains, and Chain Wheels
for Velocipedes.
We, LANCE DE LA BERE, of Burbridge Hall, Hinckley, in the County of
Leicester, Engineer, and REUBEN WHITE, of No. 52 Castle Street, Hinckley, in the
County aforesaid, Cycle Maker, do hereby declare the nature of this invention
to be as follows: -
This invention relates to the improvements hereinafter described in and relating
to driving chains for velocipedes and consists in providing means whereby such
chains may be made much cheaper and more effective and not liable to become
disarranged from the wheels.
My invention consists essentially in making driving chains for velocipede
wheels with flat links alternatively the links being arranged to engage on and
between 'the teeth or projections on the periphery of the sprocket and chain wheel
whereby the single link is arranged to engage in a slot cut in each tooth or pro-
jection and so arranged that the chain circumvests the driving wheel and pinion
and is prevented from becoming disarranged therefrom owing to each single link
engaging in each tooth the number of teeth being reduced and each pitch of the
chain will gear in a two inch wheel.
In carrying our invention into practice we provide a number of suitably shaped
blanks which are strung together by inserting rivets in the holes the succession of
links of the chain being arranged one and two links alternatively. We provide a
sprocket and chain wheel similar to the ordinary kind but provided with a lesser
number of teeth on the periphery, each tooth being cut or slotted crosswise
forming a double set of teeth.
Our improved chain is intended to catch on the teeth or projections on the
wheels and the single links to engage in the slots or divisions of each tooth thus
taking up the bearing strain from the ends of the two links, also preventing the
chain from slipping off sideways, and taking a firm grip of the teeth.
ດ. Ja Tan 1807
Improvements in and relating to Driving Chains, and Chain Wheels
for Velocipedes.
We, LANCE DE LA BERE, of Burbridge Hall, Hinckley, in the County of
Leicester, Engineer, and RUEBEN WHITE, of 52 Castle Street, Hinckley, in the
County aforesaid, Cycle Maker, do hereby declare the nature of this invention

page_text: 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 the improvements hereinafter described in and relating
to driving chains and chain wheels for velocipedes and consists in providing means
whereby such chains may be made much cheaper and more effective and not liable
to become disarranged from the wheels. Our invention consists essentially in
making driving chains for velocipede wheels with flat single and double links
alternatively the links being arranged to engage on and between the teeth or pro-
jections on the peripheries of the sprocket and chain wheels, whereby the single
link is arranged to engage, in a slot cut in each tooth or projection and so arranged
that the chain partly circumvests the driving wheel and pinion and is prevented from
becoming disarranged therefrom owing to each single link engaging in each tooth
the number of teeth being reduced the pitch of the chain is arranged to gear with a
two inch wheel. In carrying our invention into practice we provide a number
of suitably shaped blanks, in which we punch two holes equidistant, which are
strung together by inserting rivets in the holes the succession of links of the chain
being arranged one and two links alternatively. We provide a sprocket and chain
wheel similar to the ordinary kind but provided with a less number of teeth on
the periphery each tooth being cut or slotted crosswise forming a double set of
teeth. Our improved chain is intended to catch on the teeth or projections on the
wheels and the single links to engage in the slots or divisions of each tooth thus
taking up the bearing strain from the ends of the two links also preventing the
chain from slipping off sideways and taking a firm grip of the teeth. In order
that our invention may be more clearly understood we will describe it by reference
to the accompanying drawings the same letters of reference indicating similar
parts throughout.
Figures 1 and 2 illustrate a side elevation and plan of our chain and wheel.
Figure 3 is an end elevation of a sprocket wheel with chain detached. Figure 4
shows a modification of the chain. Figures 5 and 6 show the blanks from which
the chain is constructed. A is a sprocket wheel and B the chain wheel or pinion
having slots or divisions D) cut in each tooth F. The chain is composed of links
made up of blanks C, E, cut preferably to the shape shown at Figures 5 and 6,
HH being holes punched or drilled in each blank by which they are connected
or strung together by rivets. Two blanks C shown at Figure are connected to
each end of. E shown at Figure 6 alternatively. The single link E engages in the
slots D of the teeth F and the ends I of the links C are arranged to receive the
impact of the face of the tooth D and take up the bearing strain on the links. In
Figure 4 the links are enlarged to take up a portion of the impact from the
blanks C, the ends of both links bearing on the tooth F.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:
1. A sprocket chain constructed of a pair of side links connected to single links by
rivets or their equivalent in parallel lines substantially as described and illus-
trated in the accompanying drawings.
2. In combination with a sprocket chain claimed above, the sprocket wheel having
divided teeth and a chain wheel or pinion arranged to engage with the links of
the said chain substantially as described and illustrated.
***Dated this 27th day of October 1907
4
WILLIAM HENRY BARACLOUGH,
:
36 Temple Street, Birmingham, Agent for the Applicant.