Improvements in Coupling Links.
Year: 1893

page_text: Date of Application, 17th Jan., 1893
Complete Specification Left, 17th Oct., 1893-Accepted, 16th Dec., 1893
PROVISIONAL SPECIFICATION.
Improvements in Coupling Links.
ARTHUR LAMPLOUGH Gentleman 3 Colenso Road Clapton Park, N., do
hereby declare the nature of this invention to be as follows:-
It consists of a flatened link made of iron or other metal 3 inches more or less
in length with an opening 1 inch more or less in width cut in one side of the link-
one end of the link being at right angles and straight. In the cavity a jointed side
is fitted and made to open and fastened by a clip spring.
The object of this simple device is that in case of need the chain can be
instantly released whilst a strain is on it—no slack being required.
17th January 1893.
ARTHUR LAMPLOUGH,
3, Colense Road, Clapton Park, N.
COMPLETE SPECIFICATION.
Improvements in Coupling Links.
I, ARTHUR LAMPLOUGH, of 3 Colenso Road, Clapton Park, in the County of
Middlesex; Gentleman, 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 :-
The object of this invention is to provide a simple efficient and cheap device
by which in case of need the chain can be instantly released whilst strain is
on it, no slacking being required.
According to my invention I employ a flattened link made preferably of steel
though it may be of iron or other suitable metal, and of any size suitable to the
chain it is intended to couple. In one side an opening is cut or formed and one
end of the link is made straight and square or at or about right angles with the
sides of the link. To this opening a side bar or piece is hinged and fitted so
as to open outwardly, and it is secured in normal position by a locking spring clip.
I will describe my invention more fully in reference to the accompanying
drawing in which
Figure 1 is a side elevation and Figure 2 an edge elevation of my improved
link, inserted in an ordinary chain supposed to be in tension, showing the hinged
side piece closed and locked.
Figure 3 is a side elevation showing the side piece open and the chain about to
be uncoupled.
Figure 4.is a detail. The link is shown with a cross bur though that is not
essential.
a is the flattened link having one side open for a suitable length at b. The
end c of the link is carried up square or straight so as to allow the adjoining liuk
to slip off easily when required. d is the swinging side piece fitting the opening 6
and pivotted to the link at e so as to open; and it has or may have a tongue as
at g adapted to engage in a corresponding slot formed in the link as shown in
Figure 4, so that the piece d when closed fits solidly and securely to the link.
fis the spring locking and releasing clip, which is hinged upon the pivot e and
normally lies close alongside of the piece d. Its free end is fashioned so as to
embrace both the face and the upper and under sides of the opening joint. And to
facilitate manual operation it may be slightly bent or flanged outwards on one
side for example as shown at d, Figures 1 and 3.
D
•
"

page_text: Ine operation is as follows:
Assuming the link to be closed and inserted in a chain in tension (Figure 1),
and that it is desired to uncouple the chain, the spring clip is first pulled
out to the position shown dotted in Figure 2 and then thrown back clear of
the side piece d as dotted in Figure 1. Then the side piece is free to be thrown
over on its pivote to the position shown in Figure 3 and then a slight outward
pressure upon the link will effect the uncoupling and without slacking the chain.
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. A coupling link constructed and adapted for use substantially as set forth.
2. In a coupling link the combination of a swinging side piece d hinged to a
square or straight end piece c and adapted to close an opening b cut in one side of
the link with a spring clip arranged as specified, whereby the uncoupling may
be accomplished whilst the link is under tensional strain substantially as described
and illustrated.
Dated this 16th day of
1000
ARTHUR LAMPLOUGH,
Per J. G. Lorrain, M. Inst. E.E., M. Inst. M.E.,
Norfolk House, Norfolk Street, London, W.C., Chartered Patent Agent.