provements in Chains for Cycles.
Year: 1899

page_text: Date of Application, 36th Oct., 1899
Complete Specification Left, 30th July, 1900-Accepted, 8th Sept., 1900
PROVISIONAL SPECIFICATION
Improvements in Chains for Cycles.
I, ALBERT EADIE, Managing Duector of the Eadie Manufacturing Co. Limited,
of Redditch, in the County of Worcester, do hereby declare the nature of this
invention to be as follows.―
My invention has for its object improvements in chains for cycles and has
particular reference to the side plates which cary the bushes of roller chains
whereby the liability of the chain stretching or becoming laterally out of truth
18 materially reduced while at the same time greater facility is rendered for
the more substantial attachment of the roller lineis on bushes to the side plates
without increasing the cost of manufacture
In the manufacture of roller chains great difficulty is experienced in securely
attaching the ends of the steel bushes to the side plates with the result that
when in wear the side plates become more or less detached from the bushes or
work loose thereon, and the strain on the two sides of the chain becomes unequal
causing the bushes to take a diagonal position and frequently to bend or break.
at the ends thereby allowing of considerable stretch in the chain and causing
it to be more or less twisted out of truth
To obviate these objections, I cut, stamp or otherwise form each pair of side
plates so as to be of one piece of metal with a connecting budge or bridges
between the two parts forming the side plates such bridges being preferably
arranged so as to connect the two plates at or near the holes for the iivets and
thus strengthening the plates at those points. After being cut to the required
shape the budges are bent round until the plates are exactly opposite each
other with the requned space for the rollers between them and the bushes are
then inserted in the usual way
Little or no extra weight is added to the chain as the bridges may be per-
forated and the bushes in this case not equing such a thickness of metal in
the side plates for the attachment enables a saving of weight to be thereby
effected as against the extra weight of the budges
It will thus be seen that by my improvement it is impossible for the side
plates to open out from the ends of the bushes or to become out of alignment
with each other.
Deted this 30th day of October 1899
LEWIS WM. GOOLD,
Agent for Applicant, 5, Corporation Street, Birmingham.
COMPLETE SPECIFICATION
Improvements in Chains for Oycles.
I, ALBERT EADIE, Managing Director of the Eadie Manufacturing Co Limited,
of Redditch, in the County of Worcester, 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:-
My invention has for its object improvements in chains for cycles and has
particular reference to the side plates which carry the bushes of roller chaina
rn_... 31

page_text: whereby the hability of the chain stretching or becoming laterally out of truth
is materially reduced while at the same time greater facility is rendered for
the more substantial attachment of the roller liners or bushes to the side plates
without increasing the cost of manufacture
In order that my invention may be clearly understood and more easily carried
into practice I have appended hereunto a sheet of drawings upon which I have
fully illustrated my improvements together with modification of same.
Figure 1 is a plan of a pan of side plates before being bent over.
Figure 2 18 a side elevation of same after being bent over and the liners or
bushes inserted.
Figure 3 18 an end elevation of Figure 2.
Figure 4 18 a vertical section through Figure 2
Figure b is a plan of Figure 2.
Figure 6 is a similar side view to Figure 2 but illustrating a modification
Figure 7 16 an end elevation of Figure 6.
Figure 8 18 a plan of Figure 6 and shows a further modification.
Figure 9 is a view of a piece of chain made up with side links as illustrated
by Figure 6
In the manufacture of roller chains great difficulty is experienced in securely
attaching the ends of the steel bushes to the side plates with the result that
when in wear the side plates become more or less detached from the bushes or
work loose thereon, and the strain on the two sides of the chain become unequal
causing the bushes to take a diagonal position and frequently to bend or break
at the ends thereby allowing of considerable stretch in the chain and causing
it to be more or less twisted out of truth
To obviate these objections I cut stamp or otherwise form each pair of side
plates A so as to be of one piece of metal with a connecting bridge a¹ between
the two parts as shewn by Figure 1 After being cut to the required shape
the bridge a 18 bent round until the aide plates A are exactly opposite each
other with the required space for the rollers C between them after which the
bushes Baie inserted in the usual way.
I do not confine myself to the shape or number of bridges herein shewn as
I may connect the side plates A by two or more budges such as a² illustrated
by Figures 6 and 8 such bridges being preferably arranged so as to connect
the two plates A at or near the vet holes D thereby strengthening the plates
at those points.
Little or no extra weight 18 added to the chain as the bridges may be per-
forated such as shewn at a Figure 8 while the bushes B in this case not
requiring such a thickness of metal in the side plates A for their attachment
enables a saving of weight to be thereby effected as against the extra weight
of the bridges.
It will thus be seen that by my improvement it is impossible for the side
plates A to open out from the ends of the bushes B oi to become out of align-
ment with each other
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim 18
The side plates A connected together by a bridge or bridges in combination
with steel liners or bushes B having their ends attached to the said plates and
supporting rollers C substantially as and for the purpose herein set forth and
illustrated.
Dated the 08th dox of July 1900
LEWIS WM GOOLD,
Agent for Applicant, 5, Corporation Street, Birmingham.