Improvements in Jointing Earthenware, Stoneware, Concrete, and other like Pipes.
Year: 1891

page_text: Date of Application, 19th Sept., 1891-Accepted, 24th Oct., 1891
CUMI LELE SPECIFICATION.
Improvements in Jointing Earthenware, Stoneware, Concrete, and
other like Pipes.
I WILLIAM SYKES, Surveyor, Town Hall, Walham Green, S.W. 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 invention relates to the jointing, of earthenware, stoneware, concrete and
other like pipes, by forming on the spigot and in the socket a male and female screw
or thread (as shown at C. Fig. 1.) by running, casting, or stamping, a liquid, semi
fluid, or molten cement or composition on same, by means of steel or other moulds
turned and bored, to truly and closely fit into each other, either straight or slightly
tapered.
In making the pipes a rim will be formed on same (as shown at A. Fig. 1.) on
which will rest a washer of india rubber vulcanite, or other flexible substance (as
shown at B. Fig. 1.) made to shape shown, and tapered at bottom, the edge of the
socket being also tapered to correspond, so that when the pipe is screwed home, the
india rubber washer will be compressed and the joint formed, to assist the screwing
up of the pipe, the spigot and socket may be wiped with Russian tallow, or other
like substance.
The same joint may also be applied to pipes made of concrete or the like
substances, where the process of burning does not take place, as in earthenware and
stoneware pipes, in this case it would not be necessary to run or cast a composition
in forming the thread as that can be done when casting the pipe, great care
being taken when casting that portion, where the thread is formed, which will be
of the same material as the pipes are made with the whole being cast in one piece.
The same joint may also be applied to ordinary earthenware, stoneware, concrete
and the like pipes where the rim (as shown at A. Fig. 1.) is not formed, in which
case, an india rubber washer, would rest at the bottom of the socket at D. Fig. 1.
The material of which the composition is composed to form the thread may be,
gas tar, pitch, silver, or fine sand, and sulphur, mixed and boiled together and run
whilst hot, the proportion may be varied according to circumstances as to prevent
the material cracking, or to assist its adhering to the pipe, the joint material may
also be formed with Roman or Portland cement, or any like substances the invention
not being limited to the material which forms the thread.
Fig. 1. represents the joint when made the rim A. is formed on the pipes against
which rests the india rubber or flexible washer B. The screw or thread is shown
at C.
Fig. 2. represents the spigot of a pipe before being screwed together.
Fig. 3. represents the socket of a pipe before being screwed together.
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. Improvements in the jointing of earthenware, stoneware, concrete and the
like pipes, as more particularly described in the before mentioned Specification and
the accompanying drawings.