AN IMPROVED JOINT FOR SOCKET PIPES
Year: 1885

page_text: "
I, JOHN COOPER of Barnsley in the County of York, Contractor do hereby
declare the nature of my invention for "AN IMPROVED JOINT FOR SOCKET PIPES
to be as follows:-
This Invention has reference to socket pipes, and my improvements therein
consist in certain means to be employed in forming a water tight joint.
For the purpose of carrying out my invention I form two annular grooves in the
spigot end of each pipe one of such grooves being formed in the butt end, and
the other groove in the periphery thereof.
I also form corresponding annular grooves in the socket end of each pipe; and
previous to inserting the spigot end of the pipe into the socket, a band of clay is
placed into the groove formed in the butt end, and a fillet of clay around the outer
edge of the socket as is customary. After this is done liquid cement is poured
through an opening from the outside communicating with the other grooves.
The cement thus poured in fills up the groove, and runs cach way until stopped
by the clay at the butt end, and by the fillet of clay placed on the outside of the
socket, by which means an absolutely water tight joint is formed, and one that will
not be easily disturbed by undulating ground.
An Improved Joint for Socket Pipes.
"
I, JOHN COOPER of Barnsley in the County of York, Contractor do hereby
declare the nature of my invention for "AN IMPROVED JOINT FOR SOCKET PIPES
and in what manner the same is to be performed, to be particularly described
and ascertained in and by the following statement :-
This invention has reference to socket pipes of earthenware or metal and my
improvements therein consist in certain means to be employed in forming a water
tight and rigid joint.

page_text: For the purpose of carrying out my invention I form two annular grooves in the
spigot end of each pipe, one of such grooves being formed in the butt end, and
the other groove in the periphery thereof as hereinafter shewu and for purposes
hereinafter explained.
Such being the nature and object of my invention I will now proceed to describe
same more fully, and for that purpose have annexed the accompanying sheet of
drawings wherein Figure 1 is longitudinal section of a pair of socket pipes made with
my improved form of joint, where A is the socket end of the said pipe, and B the
spigot end thereof. Figure 2 is cross section of the pipe. It will be observed that
the socket end of the pipes are made with annular grooves a and b fitting opposite
to corresponding annular grooves a¹ and b¹ formed in the spigot end of the said
pipe so that when the pipes are put together as shewn in the drawings the annular
grooves can be advantageously made use of as hereinafter explained.
When commencing to make a water tight joint by means of the grooves already
described I first place a band of clay or other material c into the grooves b and 6¹
and when the spigot end of the pipe is inserted into the socket I place a fillet of
clay or other material around the outer edge of the socket as shewn in the
drawings. When this is done I pour through the opening e liquid cement or other
material in a liquid state which runs both ways until stopped by the clay or
other material at points b and d whereby the space between the bands of clay
or other material is filled up with cement in a liquid state which hardens, and
thus an absolutely water tight joint is formed, and one that will not be easily
disturbed by any subsequent irregular subsidence or elevation of the ground.
Openings fand g are air rents for supplying air to the grooves so as to allow for
the free passage of the cement but these openings are not in all cases essential.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
Firstly. The formation of annular grooves in the ends of socket pipes for the
reception of clay or other material for purposes substantially as herein set forth.
Secondly. The formation of parts substantially as herein shewn and described
for the introduction and reception of cement or other liquid material for the
purpose of making a solid and water tight joint.
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