Improvements in Jointing Pipes, Tubes, and the like.
Year: 1894

page_text: Date of Application, 2nd Aug., 1894
Complete Specification Left, 1st May, 1895-Accepted, 1st June, 1895
PROVISIONAL SPECIFICATION.
Improvements in Jointing Pipes, Tubes, and the like.
I, LAURANCE SEAGER of Sittingbourne in the County of Kent Builder
Contractor &c. do hereby declare the nature of this invention to be as follows:-
--
My invention relates to improvements in jointing any description of pipes, tubes
& the like & has for its object to make a perfectly sound joint capable of with-
standing a great pressure.
When my invention is applied to steam or hot water pipes I use two or more
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"dogs or "gripping pieces" through which bolts & nuts pass in such a manner
that when tightened cause the dogs or gripping pieces to hold firmly on
the pipe, two composition rings & three metal rings being first placed on the pipe
in position.
In using these "dogs" or "gripping pieces" on metal pipes I form teeth
where they come in contact with the pipe to enable them to take a firmer hold,
I also form similar teeth on the pipe when necessary for resisting great pressure.
Some of the advantages of my invention are that as the joint is loose &
independent of the pipe any length of pipes can be used without waste whereas in
the case of flanged joints attached they must necessarily be made to the lengths
required or in the case of "socket & spigot" pipes the portion cut from a length
is useless.
As the joint is made with two composition rings, usually india rubber, sufficient
expansion & contraction is given so that in any length of pipes or tubing they may
be fixed without the usual expansion joints.
Dated this 30th day of July 1894.
LAURANCE SEAGER,
Sittingbourne.
I LAURANCE SEAGER London Road Sittingbourne Kent Builder and Contractor
do hereby declare the nature of this invention and in what manner the same is to
he performed, to be particularly described and ascertained in and by the following
statement:
My invention relates to improvements in jointing any description of pipes, tubes
and the like and has for its object to make a perfectly sound joint capable of
withstanding a great pressure.
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"
When my invention is applied to steam or hot water pipes I use two or more
dogs or "gripping pieces" through which bolts & nuts pass in such a manner
that when tightened cause the " dogs" or "gripping pieces" to hold firmly on
the pipe, two composition rings and three metal rings being first placed on the
pipe in position.
In using these "dogs" or "gripping pieces" on metal pipes I form teeth
where they come in contact with the pipe to enable them to take a firmer hold.
I also form similar teeth on the pipe when necessary for resisting great pressure.

page_text: Some of the advantages of my invention are that as the joint is loose and
independent of the pipe any length of pipes can be used without waste, whereas in
the case of "flanged" joints attached they must necessarily be made to the lengths
required or in the case of "socket" and "spigot" pipes the portion cut from a length
is useless.
As the joint is made with two composition rings, usually india rubber sufficient
expansion and contraction is given so that in any length of pipes or tubing they may
be fixed without the usual expansion joint.
And in order that my invention may be thoroughly understood I now proceed to
describe the accompanying drawings thereof reference being had to letters and
figures marked thereon."
Fig. 1. is a longitudinal section shewing the joint as fixed to the ends of two
pipes and the dogs or gripping pieces in position.
Fig. 2. is an outside elevation of Fig. 1.
Fig. 3. is a cross section of the pipe shewing the outer metal ring and position of
the dogs or gripping pieces.
Fig. 4. is an enlarged front elevation of the dog or gripping piece.
Fig. 5. is a side elevation of Fig. 4.
Fig. 6. is a hack elevation of Fig. 4.
a the outer metal rings which slip over the end of the pipes, is an inner metal:
ring covering the joint between the two pipes e, the pipes, d the two composition
rings usually of india rubber, which fit over the pipes between the inner ring band
the inside flange of the outer rings a. e the dogs or gripping pieces used in
conjunction with the joint, any number of which may be used, and are placed
through the holes or slots in the outer ring a and having teeth formed at which a
grip firmly upon the pipes when the bolts y which pass through the holes
dogs, are tightened up.
in the
It will be readily understood from the accompanying drawings that the dogs or
gripping pieces e are first placed through the holes or slots in the outer ring a
which is then placed upon the pipes r, then the composition rings d, and finally the
inner ring b, the whole being then drawn up tight by the bolt and nut g which
causes the teeth on the dogs or gripping pieces e to firmly grip the pipes forming
a perfectly sound joint and capable of withstanding a great pressure, also that the
joint is loose and independent of the pipe so that any length of plain pipes can he
used without waste, sufficient expansion and contraction being given by the
composition rings, making it unnecessary to use the usual expansion joint.
Any number of dogs or gripping pieces may be used to each joint according to
the pressure required to withstand.
When it is required to resist very great pressure, teeth may also be formed on
the pipes as well as the dogs to give a firmer hold.
I do not confine myself to any particular form or shape of rings or dogs and the
same may be used for jointing any description of pipes, tubes and the like.
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. In an improvement connected with the jointing of pipes, tubes & the like
consisting of a device whereby a perfectly sound joint, capable of withstanding a
great pressure when applied to steam or hot water pipes and may also be used in
jointing any description of pipes, tubes and the like, the combination of the
device, substantially as herein described and according to the accompanying
drawings.
2. In an improvement connected with the jointing of pipes, tubes and the like,
the combination of the two outer metal rings a, inner metal ring b, pipes c,
composition rings d, dogs or gripping pieces e, with teeth formed at f and bolt and
nut g, substantially as herein described and according to Figs. 1. 2. 3. 4. 5 and 6 of
the accompanying drawings.

page_text: 3. The manufacture and use of the improvements in jointing pipes, tubes, and
the like substantially as herein described and according to the accompanying
drawings.
Dated this Thirtieth dow of April 1895
LAURANCE SEAGER,
Applicant.