New or Improved Means for Connecting or Joining together Pipes.
Year: 1893

page_text: Date of Application, 23rd Dec., 1893
Complete Specification Left, 9th Mar., 1894-Accepted, 21st Apr., 1894
YIONAL DI MOLTIVATION.
New or Improved Means for Connecting or Joining together
Pipes.
I ARTHUR WILLIAM HILL of 10 Red Lion Square in the County of Middlesex
Gentleman do hereby declare the nature of this invention (communicated to me
from abroad by Edmund Howe Lilley at present on board the S.S. Caldy at
Genoa Master Mariner) to be as follows:-
This invention relates to new or improved means for connecting or joining
together in a simple and effective manner pipes for steam gas water and the
like.
According to this invention the connection or joint consists of a tube of brass
or other suitable material having a screw thread formed upon the exterior thereof.
Slits are formed in each end of this tube extending from the edge inwards; the
slits at each end of the tube being preferably of unequal length so as to avoid
weakening the tube too much at one point. The said tube or connection is
intended to be lined throughout with lead or other suitable slightly yielding
material. The connection should be of such internal diameter that when the
pipes to be connected are inserted within the split ends thereof the said split
ends will slightly expand or open out, then by screwing up suitable nuts threaded
upon the exterior of the connection the split ends will be caused to close again
and to grip the inserted tubes. Lock nuts would be provided to retain the
above mentioned nuts in the desired position. I prefer that the screw thread
before referred to should be right handed at one end of the connection and left
handed at the other end thereof, the right and left handed threads meeting in
the centre, thus in screwing up the nuts at one end of the connection the latter
may be prevented from rotating by applying a spanner to the nuts at the other
end thereof.
E. P. ALEXANDER & SON,
Chartered Patent Agents,
19, Southampton Buildings, Chancery Lane, London, W.C., Agents.
COMPLETE SPECIFICATION.
New or Improved Means for Connecting or Joining together
Pipes.
I ARTHUR WILLIAM HILL of 10 Red Lion Square in the County of Middlesex
Gentleman do hereby declare the nature of this invention (communicated to me
from abroad by Edmund Howe Lilley at present on board the S.S. Caldy at Genoa,
Master Mariner) and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement:-
This invention relates to new or improved means for connecting or joining
together in a simple and effective manner pipes for steam, gas, water and the
like.
According to this invention the connection or pipe joint consists of a tube of
brass or other suitable metal upon the exterior of which a screw thread is formed.
Slits are provided in each end of this tube extending from the edge inwards, the

page_text: slits at each end of the tube being preferably of unequal length so as to avoid
weakening the tube too much at one part. The said tube or connection is intended
to be lined throughout with lead, asbestos, or other suitable slightly yielding
material. The pipe joint or connection should be of such internal diameter that
when the pipes to be connected together are inserted therein the split ends thereof
will be slightly expanded or opened out, then by screwing up suitable nuts threaded
upon the exterior of the connection, and which may be termed "grip nuts," the
said split ends will be contracted again and caused to grip the inserted tubes. Lock
nuts would be provided to retain the grip nuts in the desired position. I prefer
that the screw thread before referred to should be right handed at one end of the
connection and left handed at the other end thereof, the said right and left handed
threads meeting in the centre, then when screwing up the grip nuts at one end of
the connection or pipe joint the latter may be prevented from rotating by the
application of a spanner to one of the other nuts.
In the accompanying drawings, in which similar letters refer to corresponding
parts in all the figures,
Figure 1 is a side elevation shewing the connection or pipe joint ready for the
insertion or withdrawal of the pipes to be connected.
Figure 2 is a similar view shewing the connection or pipe joint screwed up and
gripping the inserted pipes.
Figure 3 is a transverse section on line 1-2 Figure 1.
a is the tubular connection, provided on the exterior with right and left hand
screw threads which meet midway of the said tube a. bbare the slits formed in
each end of tube a, the said slits being preferably of unequal length for the reasons
before mentioned. c and d represent the pipes to be connected together by a.
e is the yielding lining of the connection a, preferably in the case of steam
pipe connections composed of asbestos. ff are the grip nuts by which the split
ends of a are caused to grip the inserted tubes cd, and yg are lock nuts.
The tubular connection a should be of such internal diameter that the insertion
of the pipes to be connected will slightly open out or expand the split ends
thereof, then upon screwing up the grip nuts as shewn in Figure 2 the
pipes c d will be securely gripped, the yielding lining e preventing any leakage.
The screw thread on the exterior of the connection a being both right and left
handed, when either of the nuts ff is being screwed up the said connection a
may be prevented from rotating by the application of a spauner to any of the
other nuts.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. A pipe joint or connection consisting of a tube split at each end and provided
with an external screw thread and grip nuts combined with a lining of yielding
material substantially as specified.
2. A pipe joint or connection consisting of a tube split at each end and provided
with external right and left handed screw threads and grip nuts combined with a
lining of yielding material substantially as and for the purpose specified and
illustrated.
3. The general construction and arrangement of pipe joint or connection
substantially as and for the purpose described and illustrated.
Dated this 9th day of March 1894.
E. P. ALEXANDER & SON,
Fels. Chartered Inst. Patent Agents,
19, Southampton Buildings, Chancery Lane, London, W.C.,
For the Applicant.