AN IMPROVED HOOK FASTENER
Year: 1882

page_text: LETTERS PATENT to James McKenny, of Stephen's Green, West, Dublin, in
the County of Dublin, Ireland, M.R.C.V.S., for an Invention of "AN IMPROVED
HOOK FASTENER."
PROVISIONAL SPECIFICATION left by the said James McKenny at the Office
of the Commissioners of Patents on the 20th January 1882.
JAMES MCKENNY, of Stephen's Green, West, Dublin, in the County of Dublin,
Ireland, M.R.C.V.S. "AN IMPROVED HOOK FASTENER."
My Invention has reference to an improved hook fastener of simple construction
suitable for horse chains and other purposes where an easy and secure mode of
fastening or attaching is required.
'
For this purpose I arrange two hooks with straight ends or legs working in the
centre on a pivot in such a manner that when closed by a lateral motion they..
overlap each other forming a complete ring.
On the straight ends or legs of these two hooks is mounted a slide swivel-key
which is free to move to and from the centre or pivot on which the two hooks
operate, so that while this swivel key is in a position at the extremities of the
straight ends or legs the two hooks will remain firmly in contact and cannot be
separated until the swivel key is brought to a certain position on the straight ends
or legs when in order to remove the hook a backward and forward circuitous
motion is necessary.
The novelty of the hook consists in the peculiarity of its construction and the
movements required for opening or loosening same.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said James McKenny in the Great Seal Patent Office ou the 20th July
1882.
JAMES MCKENNY, of Stephen's Green, West, Dublin, Ireland, M.R.C.V.S.
IMPROVED HOOK FASTENER."
«< AN
My Invention has reference to an improved hook fastener of simple construction,
suitable for horse chains and other purposes, where an easy and secure mode of
attaching or fastening is required.
For this purpose I arrange two hooks with straight ends or legs working in the
centre on a pivot in such a manner that when closed by a lateral motion they
overlap each other forming a complete ring. On the straight ends or legs of these
two hooks is mounted a slide swivel key which is free to move to and from the
centre or pivot on which the two hooks operate, so that while this swivel key is
in a position at the extremities of the straight ends or legs the two hooks will
remain firmly in contact, and cannot be separated until the swivel key is brought
to a certain position on the straight ends or legs, when in order to remove the
hook a backward and forward circuitous motion is necessary.
The novelty of the hook consists in the peculiarity of its construction and the
movements required for opening or loosening same.
The accompanying drawing will illustrate more clearly the construction of my
said Invention:-Fig. 1, is a front view, and fig. 2, a side view, showing the hook
fastener closed, in which condition it will be noticed the swivel key occupies a
position at the extremities of the straight legs, thus preventing any separation of
the hook legs. Fig. 3, represents the hook fastener open with the swivel key
occupying a position near the centre pivot. Fig. 4 shows one of the hooks or legs
detached. It is obvious that the ring or chain which may be slipped on to this
hook fastener cannot become detached seeing the peculiarity of its construction and
action.
Having thus described the nature of my said Invention, and the manner of
applying same, I would have it understood that what I claim as the Invention to
be secured to me by the hereinbefore in part recited Letters Patent is :-
The use and application of a hook fastener constructed and operating substan-
tially in the manner and for the purpose herein specified and set forth.
In witness whereof, I, the said James McKenny, have hereunto set my hand
and seal this Eighteenth day of July in the year of our Lord One thousand
eight hundred and eighty-two.
JAMES MŪKENNY M.K.C.V.S.
(L.B.)