Improvements relating to Cycle and like Driving Chains.
Year: 1897

page_text: Date of Application, 4th Dec., 1897
Complete Specification Left, 5th Sept., 1898-Accepted, 8th Oct.,
1898
PROVISIONAL SPECIFICATION.
Improvements relating to Cycle and like Driving Chains.
I, JOSEPH APPLEBY, of the Firm of Joseph Appleby Limited, of Castle Chain
Works, Tower Road, Aston, in the County of Warwick, Manufacturer, do hereby
declare the nature of this invention to be as follows;-
-
This invention consists of improvements relating to cycle and like driving
chains, my object being to construct strong, light, and durable chains of the
block pattern, having inner and outer links or side plates so arranged as to
entirely relieve the blocks from tensional stress.
In the application of my invention I stamp or form the steel links or side plates
in any ordinary manner, and arrange them within and without each other with
the steel cross sleeves or bushes, and connecting rivets, as with roller chains.
But instead of rollers I mount blocks upon the cross or connecting bushes, such
blocks being made from steel tube suitable rolled, drawn, or otherwise formed
to the configuration of a solid block by the depression of the central portion to
a concave outline, thereby enabling the blocks to work easily on wheels of small
diameter.
As my improved tubular blocks are entirely relieved from the tensional force
imposed on the chain when in service, (such force being transmitted through
the links), they can be sufficiently hardened and tempered to resist the wear on
the rounded ends without risk of subsequent fracture.
With my improved tubular blocks the same links, sleeves, and pins or rivets,
can be used as with roller chains, and I employ such parts in varying forms
and combinations to meet the requirements of the particular services to which
the chains are to be applied.
Improvements relating to Cycle and like Driving Chains.
I, JOSEPH APPLEBY, of the Firm of Joseph Appleby, Limited, of Castle Chain
Works, Tower Road, Aston, in the County of Warwick, Manufacturer, do hereby
declare the nature of this invention and in what manner the same is to be

page_text: performed, to be particularly described and ascertained in and by the following
statement:
-
This invention consists of improvements relating to cycle and like driving
chains, my object being to construct strong, light, and durable chains of the
block pattern, having inner and outer links or side plates so arranged as to
entirely relieve the blocks from tensional stress.
In the accompanying sheet of explanatory drawings to be hereinafter referred
to:―
Figure is an elevation and Figure 2 a plan of a block chain constructed in
accordance with my invention.
Figure 3 is a plan and Figure 4 an elevation of one of the blocks.
Figures 5, 6 and 7 are three views illustrating one of the bushes of the inner
side plates.
Figure 8 is an elevation, of one of the inner side plates.
Figure 9 is a plan of one of the inner side plates with its pair of bushes in
position.
Figure 10 is a plan showing an inner side plate with its pair of bushes and with
the block mounted on such bushes.
The same reference letters in the different views indicate the same parts.
In the application of my invention I stamp or form the steel links or side plates
in any ordinary manner, and arrange them within and without each other with
the steel cross sleeves or bushes, and connecting rivets, as with roller chains.
But instead of rollers I mount blocks as A upon the cross or connecting bushes B
of the innerside plates C, such blocks being made from steel tube suitably rolled,
drawn, or otherwise formed to the configuration of a solid block by the depression
of the central portion to a concave outline (as shown at Figure 4) thereby
enabling the blocks to work easily on wheels of small diameter.
As my improved tubular blocks are entirely relieved from the tensional force
imposed on the chain when in service, (such force being transmitted through the
links), they can be sufficiently hardened and tempered to resist the wear on the
rounded ends without risk of subsequent fracture.
With my improved tubular blocks the same links, sleeves and pins or rivets,
can be used as with roller chains, and I employ such parts in varying forms and
combinations to meet the requirements of the particular services to which the
chains are to be applied.
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. Cycle and like driving chains having blocks so arranged as to be entirely
relieved from tensional stress, substantially as described.
2. In cycle and like driving chains, the combination of inner and outer side
plates, cross sleeves or bushes and connecting rivets, with tubular blocks mounted
on the sleeves or bushes between the inner side plates, substantially as described
and as illustrated.
Dated this 2nd day of September 1898.
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham,
Agents for the Applicant..
MARKS & CLERK,
18, Southampton Buildings, London, W.C., and
13, Temple Street, Birmingham,
Agents for the Applicant..