Year: 1896

page_text: Date of Application, 10th July, 1896
Complete Specification Left, 10th Apr., 1897-Accepted, 22nd May, 1897
JOHN BARLOW 105 Annesley Street Kirkewhite Street Nottingham, Mechanic
do hereby declare the nature of this invention to be as follows:-
My invention relates to an improved method of making chains for cycles and
other vehicles.
According to my invention I make a chain the links of which, have one or more
projections on. The projection or projections of the link I prefer on the outer face
of the link, of which project a suitable length. Between the ends or end faces of
the projection or projections of the link a spring or springs, is placed or fixed, but
may be without a spring or springs, but a spring or springs preferred. The
spring or springs are for holding the outer ends of the projections apart as needed,
so that when a spring or springs is placed between each outer ends of the links, it
causes the chain to form a arch shape or bellied out shape. The spring or springs
I prefer placed or fixed to one end of each link so that when the links which are
biting on the wheels are free from pressure as needed. The spring or springs may be
fixed in such a maner so that the pressure of the spring or springs, only comes on
at the top part or top portion of the chain thereby allowing the part of the chain
biting on the wheels and bottom part of the chain free from pressure of the spring
or springs. When it is worked without a spring or springs, the ends of the links
with projections on may be made to meet in a suitable way so the chain forms arch
shaped where needed. "The link with projection or projections may be made all
in one or the projection or projections may be fixed in a suitable way. The
projection or projections on the link may form a V shape or other suitable shape
or the spring or springs may be fixed on the outer face without a projection or
projections but in any case it must be so arranged as to cause the chain to run
arch shaped where needed. The chain running in this form prevents it clicking
either when back pedaling or not, it also takes up slackness of the chain. The
spring or springs may be fitted on in a suitable way and the other parts made to
match same, or the links may be fitted with some other suitable article or articles
to act instead of springs.
OL TL1000
I, JOHN BARLOW, of 105 Annesley Street, Kirkewhite Street, Nottingham,
Mechanic 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 relates to an improved method of making chains for cycles and
other vehicles.
According to my invention, I make a chain, some of the links of which have one
or more projections thereon. These projections are formed on the outer face of
the link of a suitable length. Between the ends or end faces of these projections

page_text: :
of the link, I fix one or more springs. These springs are for holding apart the
outer ends of the projections in such a manner as to cause the chain to form a
curved or arched shape.
I prefer to place or fix these springs to one end of each link, so that when those
links which are riding on the chain wheels, a certain amount of pressure is taken
therefrom. These springs may be fixed in such a manner, that the pressure of the
springs only takes effect at the upper portion of the chain, thereby allowing that
part of the chain riding on the wheels, and the bottom part of the chain to be
released from any pressure from the springs.
When the chain is worked without springs, the ends of the links with projections
on may be made to meet in a suitable manner so that the chain forms an arched
shape where needed. Those links carrying the projections may be made all in one
with the projection, or they may be fixed thereon in a suitable manner.
The projection or projections on the links may be in the form of a V, or other
suitable shape; or the spring or springs may be fixed on the outer face without a
projection or projections; but in any case it must be so arranged as to cause the
chain to run in the shape of an arch. The chain running in this form prevents it
clicking either when back-pedalling or not; it also takes up slackness of the chain.
The springs may be fitted on in any suitable manner, and the other parts made to
match same; or the links may be fitted with some other suitable article or articles
to act instead of springs.
And in order that the said invention may be fully understood and readily carried
out and into effect, I shall now proceed more particularly to describe the same;
and for that purpose shall refer to the several figures on the annexed sheet of
drawings, wherein the same letters of reference indicate corresponding parts in all
the figures.
Fig. 1 is an elevation of one form of my improved chain.
Fig. 2 is a plan of the above.
Fig. 3 is an elevation of another form of my improved chain shewing another
method of spring.
Fig. 4 is a plan of the chain shewn by Fig. 3.
Figs. 5 and 7 are elevations of other forms of my improvements.
Figs. 6 and 8 are plans of the chain shewn by Figs. 5 and 7.
Fig. 9 shows one form of my improved chain as fitted to the driving and driven
wheels N. M. of a cycle or other vehicle.
In Figs. 1 to 6, I form every other link A, A with the projections or horns P, P.
at each end, either in one piece with the link, or attached thereto; and rivetted to
or attached by other suitable means to the intermediate link B. In the arrangements
shewn by Figs. 3 and 4 I have one or more curved springs S, which are inserted
between the projections P, P, under suitable compression.
In the arrangement shewn by Figs. 1 2, 5, and 6, the spring S is attached at one
end to a pin or cross-bar C carried by one projection of each alternate link at each
side of the chain; the spring S, in this case taking a bearing in compression against
the horns P, P, in contrary directions.
In the arrangement shewn by Figs. 7 and 8 I use the links of the chain of the
ordinary form as now used but on every intermediate link B I rivet or attach
by other suitable means a double curved spring S each end of which takes a bearing
under compression on the outer faces D, D, of the links A, A.
I may use any other suitable form and arrangement of spring than those shewn
on the drawings; and instead of fitting every alternate link with such springs,
I may fit the springs to links at any other desired intervals in the chain. But in all
these arrangements, what I wish to attain by my said invention is forming an improved
chain; which, between the driving and driven wheels N. M. assumes the form of a
curve as shewn in Fig. 9-so as to take up any looseness or slack in the chain,
and so render it elastic, and allows it at the same time to take a certain amount of
pressure from the wheels over which the chain is riding.

page_text: 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 :-
1st. In driving chains for cycles and other vehicles the combination of the
alternate links A. A having one or more horns P. P thereon with the springs S
suitably attached to the intermediate links B-as shewn by Figs. 3 and 4 or to the
horns P. P. as shewn by Figs. 1-2-5 and 6,-for the purposes mentioned and
substantially as hereinbefore described in the drawings herewith.
2nd. In driving chains for cycles and other vehicles the combination in an ordinary
chain of the links A, A with the springs S, S suitably attached to the intervening
links B, B-as shewn by Figs. 7 and 8-for the purposes named and substantially
as herein set forth and illustrated in the accompanying drawings.
3rd. In chain gear motion the combination of the springs S. S with the links A. A
and B. B upon which they take a bearing and to which they are attached
respectively, all for the purposes mentioned and as shewn in the drawings
herewith.
4th. The arrangement and combination of parts hereinbefore described for the
purposes named, and substantially as shewn on the drawings herewith.
D. Ninth done of Anul 1907
H. WALKER HILL,
2 Church Gate, Nottingham, Agent for the Applicant.