Improvements in Pipes for Sanitary and other Purposes.
Year: 1891

page_text: Date of Application, 15th July, 1891
Complete Specification Left. 31st Mar, 1892-Accepted, 21st May, 1892
PROVISIONAL SPECIFICATION.
Improvements in Pipes for Sanitary and other Purposes.
I, WILLIAM DEEMING, of Summit, Littleborough, in the County of Lancaster,
Manufacturer, do hereby declare the nature of this invention to be as follows:―
This invention refers primarily to sanitary or drain pipes made of earthenware
or stoneware but may also be applied to iron or other pipes and is designed with
the object of providing a watertight and airtight joint between the ends of two
pipes without the use of liquid cement to be run into the joint.
It consists essentially in forming the pipe ends of such a shape that the cement
or clay can be placed on the spigot end and carried into the socket and when there
be bumped tightly into all the joints.
In carrying out the invention I construct the spigot end of the pipe with a
shoulder or ring which will be near the mouth of the socket when in position and
a corresponding shoulder or ring in the socket near its base so that when one is
placed inside the other the joint will zig-zag or in the form of one or more steps.
The spigot end and the socket end may be formed with one two or more of such
rings or shoulders but for ordinary work one on each will I consider be sufficient
and if desired the joint may be lined or coated with composition to make a truer
or more exact joint.
The cement is placed on the spigot end of the pipe before being inserted into
the socket and is carried in therewith. The cement coming against the shoulder
on the inner surface of the socket is compressed between that shoulder and the
shoulder on the spigot and is thereby forced or bumped into all the interstices.
The cement also forms a ring round the pipe besides filling the sides of the joint.
A tight joint is thus formed which on account of the cement being compressed
can be used almost immediately without waiting until the cement is fully dry.
If desired a lip may be formed on the spigot end outside the ring or shoulder.
Dated this 14th day of July 1891.
WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.
COMPLETE SPECIFICATION.
Improvements in Pipes for Sanitary and other Purposes.
1, WILLIAM DEEMING, of Summit, Littleborough, in the County of Lancaster,
Manufacturer, 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 :-
This invention refers primarily to sanitary or drain pipes made of earthenware
or stoneware but may also be applied to iron or other pipes, and is designed with
the object of providing a water-tight and air-tight joint between the ends of two
pipes without the use of liquid cement to be run into the joint.
The pipe ende or joints are formed of such a shape that the cement or clay can be
placed on the spigot end and carried into the socket, and when there, be bumped
tightly into all the joints.
It will be fully described with reference to the accompanying drawings which
show three modifications of a pipe joint constructed in accordance with this
invention.
The spigot end A of the pipe is constructed with a shoulder or ring a in such a
position thereon as to be near the mouth of the socket B when the two are in

page_text: position, and on the socket end B there is formed a corresponding shoulder or ring b
which will be near the base of the socket and sufficiently wide to allow the spigot
to enter it. The two rings a and b are so placed upon their respective ends A
and B of the pipes that when one end is placed inside the other the joint will
zig-zag or in the form of one or more steps.
The spigot end and the socket end may be formed with one, two, or more of such
rings or shoulders (see Figs. 1 and 3) but for ordinary work one on each as in
Fig. 1, will I consider be sufficient and if desired the joint may be lined or coated
with composition to make the inside of the socket more even and make a truor or
more exact joint.
The cement is placed on the spigot end A of the pipe before being inserted into
the socket B and is carried in therewith. The cement coming against the
shoulder 6 on the inner surface of the socket is compressed between that shoulder
and the shoulder a on the spigot and is thereby forced or bumped into all the
interstices. The cement also forms a ring round the pipe besides filling the sides
of the joint.
A tight joint is thus formed, which, on account of the cement being compressed,
can be used almost immediately-without waiting until the cement is fully dry.
If desired, a lipe may be formed on the spigot end outside the ring or shoulder
as shown in Fig. 2.
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
claim is :-
A pipe for sanitary or other purposes having a joint of zig-zag shape by which
clay or cement can be carried by the spigot into the socket formed substantially
as described and shown.
Dated this 16th day of March 1892.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, and London, Patent Agents.