Improvements in or connected with Chain Links.
Year: 1890

page_text: Date of Application, 23rd May, 1890
Complete Specification Left, 25th Feb., 1891-Accepted, 28th Mar., 1891
PROVISIONAL SPECIFICATION.
Improvements in or connected with Chain Links.
I, JOHN SCOTT, of 109, Medlock Street, Liverpool, in the County of Lancaster,
Engineer, do hereby declare the nature of my said invention to be as follows:-
This invention has reference mainly to the construction of links of that kind of
chain or cables in which the links are provided with studs forming struts, such
studs being disposed in the inner axis of the links. This kind of chain is usually
called stud-link-chain.
The chief object of my invention is to provide a means, or construction of parts,
by which the studs can be, and are, fixed in position in the links after the link
proper is constructed, and in a manner which shall be easily and quickly effected,
and further, when fitted shall be rigidly held in position and adapted to take the
stress on the links, as it would be if the studs were an integral part of the link.
According to this invention the studs are made of two pieces, that is, they are
divided, and each part is formed with a forked or notched end adapted to fit the
interior shape of the ring, and these two parts are pressed apart when being
applied to the link, and kept apart and in contact with the inner surface of the
link, by a wedge which is driven in between the two abutting ends of the said two
parts.
To guide the wedge and keep it in position, a suitable groove or grooves or
recesses are provided in the two parts of the studs, and suitable corresponding
projecting parts are provided in the wedge, or vire cersa; and then besides these
the ends of the wedge are rivetted up into and fill spaces or recesses provided in
the said two parts to receive the rivetted or swollen parts. By these means it is
impossible for the stud to become slack or loose, or the wedge to slip.
The studs may be made of cast iron or steel or other suitable metal, and the
wedge may be made of any suitable malleable metal, such as iron or steel.
I wish it to be understood that I do not confine this invention to the particular
formation of the parts herein specified or the exact combination specified, as these
may be varied accordingly as the conditions of application of the invention, or
requirements generally, vary.
One of the chief advantages of this invention is the possibility of replacing a
broken or defective stud without removing the chain from a ship's deck or other
place where it may be in use, thus saving both time and money.
Dated this 22nd day of May 1890.
CHEESBROUGH & ROYSTON,
15, Water Street, Liverpool, Applicant's Patent Agents.
COMPLETE SPECIFICATION.
Improvements in or connected with Chain Links.
I, JOHN SCOTT, of 109, Medlock Street, Liverpool, in the County of Lancaster,
Engineer, 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 :-
This invention has reference mainly to the construction of links of that kind of
chain or cables in which the links are provided with studs forming struts, such
studs being disposed in the minor axis of the links. This kind of chain is usually
called stud link chain

page_text: The chief object of my invention is to provide a means of construction of parts,
by which the studs can be, and are, fixed in position in the links after the link
proper is constructed, and in a manner which shall be easily and quickly effected;
and further, when fitted shall be rigidly held in position and adapted to take the
stress on the links, as it would be if the studs were an integral part of the link.
According to this invention the studs are made mainly of two pieces, that is,
they are divided, and each part is formed with a forked or notched end adapted to
fit the interior shape of the ring, and these two parts are pressed apart, when being
applied to the link, and kept apart and in contact with the inner surface of the
link, by a wedge, which is driven in between the two abutting ends of the said two
parts.
To guide the wedge and keep it in position, a suitable groove or grooves or
recesses are provided in the two parts of the studs, and suitable corresponding
projecting parts are provided in the wedge, or vice versa; and then, besides these,
the ends of the wedge are rivetted up into and fill spaces or recesses provided in
the said two parts to receive the rivetted or swollen parts. By these means it is
impossible for the stud to become slack or loose, or the wedge to slip.
The studs may be made of cast or malleable iron or steel or other suitable metal,
and the wedge may be made of any suitable malleable metal such as iron or steel.
I wish it to be understood that I do not confine this invention to the particular
formation of the parts herein specified, or the exact form of their combination, as
these may be varied without departing from the essential features of the invention.
In the drawings which serve to illustrate this invention, and give one example of
the form of stud or stud parts
Figure 1 is a side elevation shewing a cable link with the stud fitted.
Figure 2 is a cross section through the link taken at the line X. X. Figure 1.
Figure 3 is a longitudinal section of same taken at the line Y. Y. Figure 1.
Figure 4 shews the three parts forming the stud before they are attached and
rivetted up.
With reference to the drawings a is the link proper, bare the two portions of
the stud, and c is the wedge. d represent grooves or channels in the stud portions b,
and e are ridges formed upon the wedge cand adapted to coincide or correspond with
and fill said grooves d when fitted.
The outer ends of the stud portions 6, that is, those portions which bear against
the inner surface of the link a are made of such form as to fit or bear on said
surface of the link; and at the outer sides at the parts marked, the stud portions
are cut away or narrowed inwards, as shewn in the drawings, for the purpose of
obviating weakness and liability of breakage of the stud at such parts, which
would exist and occur if carried up to a feather edge as denoted by the dotted
lines'.
To fit a stud to a link, all that is necessary to do, is to put the two parts of the
stud in position, within the link, then drive in between them the wedge c, and then
rivet up the ends of the wedge into the recesses in the stud parts b, and which
are provided in such portions to receive the metal resulting from the rivetting.
The head or riveted portion of the wedge c is clearly shewn in Figures 1, 2 and 3,
and is designated i therein.
In the application of the invention to the repairing of broken studs of chains
or cables it can be fitted on board ship by the carpenter or other hand and thus the
delay and great expense of mending these types of chains or cables in the usual
way, that is, by taking them to a smithy, and then bringing them back on board, is
entirely obviated.
It will also be seen by this invention the portions b and c may be sold as separate
articles, that is, as studs, by store keepers, or others, and kept also in stock or in
store on board ship, or otherwise, where required, they being, of course, made of
different sizes to suit different sized links.

page_text: Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. The herein described construction of chain links, that is to say, a chain link.
having a stud composed of two parts, and a filling or wedge piece placed or driven
in between said parts: substantially as described.
2. The chain link consisting of the link a, stud portion b b, and wedge c, riveted
at its ends as set forth with reference to the drawings.
3. The stud parts b, and the wedge c, constructed as or substantially as described,
for use in chain links.
D
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20
11
2
1001
CHEESBROUGH & ROYSTON,
15, Water Street, Liverpool, Applicant's Patent Agents.