A Screw-clasp Fastener for India Rubber or other Flexible Piping.
Year: 1888

page_text: Date of Application, 12th Oct., 1888
Complete Specification Left, 12th July, 1889-Accepted, 17th Aug.. 1889
PROVISIONAL SPECIFICATION.
A Screw-clasp Fastener for India Rubber or other Flexible Piping.
EDWARD JOBSON, Cail's Buildings, Quayside, Newcastle upon Tyne Shipowner,
do hereby declare the nature of this invention to be as follows:-
My object is to provide a simple means of attaching India Rubber or other flexible
piping or tubing to metallic or other rigid pipes tubes or cocks; to do this I propose
a light spring ring with a boss on one side said boss to be screwed and to have a thumb
screw attached; the boss & ring is split so that the ring can pass over the piping
& the adjusting screw will tighten the ring upon the flexible piping as screwed down,
thus securely fixing the flexible piping to the metallic pipe or cock.
Othon 1000
COMPLETE SPECIFICATION.
A Screw Clasp Fastener for India Rubber or other Flexible Piping.
I EDWARD JOBSON Cail's Buildings, Quayside, Newcastle-upon-Tyne, Shipowner
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 object is to provide a simple means of attaching India-rubber or other flexible
piping, or tubing, to metallic or other rigid pipes, tubes or cocks. To effect this I
propose to use a light spring ring, with a tapered boss on one side, said boss to be
screwed and to be fitted with a thumb screw having a tapered tapped nut. The spring
ring is split through the boss so that it can pass over and around the piping and the
thumb nut will tighten the ring upon the flexible piping, as it is screwed down, thus
securely fixing the flexible piping to the metallic pipe or cock.
The clasp fastener is so simple of application that no special skill is required to make
a perfect connection, without screwed couplings and wire wrapping, which are expensive,
and a hose can be connected and disconnected in less than a minute.
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DESCRIPTION OF DRAWINGS.
On the sheet of drawings herewith Figs. 1. 2 and 3 shew a clasp of ordinary size
for attaching an India-rubber tube or hose to a pipe, or to the unscrewed end of a
cock or valve, Fig. 1 shewing in section the clasp open, so as to pass over and around
the tube or hose, and Fig. 2 the clasp, also in section, closed so as to grip'the tube
or hose upon the pipe or cock; Fig. 3 shewing a side view of Fig. 2.
A is the clip having formed upon it the split tapered boss B upon which a screw is
cut and C is a thumb screw the thread in the tapered nut of which is tapped to fit the
screwed boss when the clip A is drawn together, as in Fig. 3, the nut in Fig. 1 being
shewn as just ready to enter upon the first thread of the boss, D is the end of the
pipe or cock and E is the India-rubber hose. The clasp is shewn with the clip A and
boss B formed in one piece and may be made of brass, steel or other suitable metal or
material, having the required elasticity, and the split opening may either be formed in
making it or may be cut out after the screw thread has been cut upon
it or, in some cases, the screw thread may be formed in the mould. Fig. 4 shews
another method of making the clasp which may be suitable for attaching a hose of
larger size such as for fire engines or other purposes. The boss B, in two parts, is
separate from the clip A, which may be a hoop of steel, or other suitable metal or
material, with an opening between its two ends the two parts of the boss being
secured to it by rivets. In this form the boss B may conveniently be formed in

page_text: one piece, as shewn by Fig. 5, and after being screwed, cut in two and riveted
to the clip, as shewn by Fig. 4, or, as before named, the screw thread may be
formed in the mould. For general purposes however I prefer to form the clip A
and the boss B in one piece.
Having now particularly described and ascertained the nature of said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
For the purpose of attaching India-rubber or other flexible piping, or tubing, to
metallic or other rigid pipes, tubes or cocks, the construction and application of a
screw clasp, comprising a clip with a tapered screwed boss split through, so as to open
and increase the diameter of the clip, and a thumb screw or nut, tapped with a tapered
thread, which will draw together the two parts of the boss and thus cause the clip to
contract in diameter and secure the flexible pipe upon the rigid pipe or cock.
T. J. DANSON, F.I.P.A.,
2, St. Nicholas' Buildings, Newcastle on Tyne, Agent for Applicant.