Improvements in Joints for Sanitary and other Pipes.
Year: 1895

page_text: Date of Application, 8th Aug., 1895
Complete Specification Left, 24th Mar., 1896-Accepted, 2nd May, 1856
PROVISIONAL SPECIFICATION.
Improvements in Joints for Sanitary and other Pipes.
JOHN PARNELL ALLEN, Surveyor, 23 Victoria Buildings, Grainger Street
West in the City and County of Newcastle-on-Tyne and WILLIAM HARRIMAN
ALLEN, Firebrick Manufacturer, Fenkle Street in the City and County of
Newcastle-on-Tyne do hereby declare the nature of this invention to be as
follows:-
An imperishable composition joint is cast on the spigot and faucet ends of the
pipes, the one fitting the other, and constructed alternatively of a parabolic "he
and she" form-but only fitting at two points, with intervening spaces so that a
close joint is maintained in cases of subsidence or irregularity in the laying of the.
pipes.
The improvement consists of an imperishable composition joint of special design,
cast into the socket of each pipe-and of a similar molding almost the reverse, cast.
on the spigot end of each pipe. The special form of the joint cast in the socket is
fully set forth in the drawing attached, from which it will be seen that at the
extreme depth of the socket there is a parabolic projection (A) with a similar
channel (B) beside it & on the spigot of each pipe an almost similar pattern, but.
reversed, is cast, so that when these two are put together the parabolic projection A
in the socket is fitted over by the reverse portion C on the spigot end, and the
channel B on the socket is partly filled by the reverse of same D on the spigot.
The sections are so arranged that they do not come in contact all over each
other as regards the parabolic forms A & C- but they are so designed that they
are always in contact at two points around the pipe continuously in whatever
position the pipe may be fixed-or moved by settlement of the ground afterwards-
thus always ensuing a tight fitting joint-which is rendered complete by the usual.
band of cement, resin & tallow, or the like--resulting in a joint which will resist.
more than the ordinary pressure of water when the pipe is filled completely.
זוזזז
COMPLETE SPECIFICATION.
Improvements in Joints for Sanitary and other Pipes.
We, JOHN PARNELL ALLEN Quantity Surveyor of Victoria Buildings,.
Grainger Street West and WILLIAM HARRIMAN ALLEN Firebrick Manufacturer
of Fenkle Street both in the City and County of Newcastle-on-Tyne, 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 relates to improvements in joints for sanitary and other pipes
whether of earthenware stoneware metal or otherwise.
Referring to the accompanying drawing which shows a sectional view of the.
improved pipe joint, 1 is the socket and 2 the spigot end of two pipes.
CD

page_text: The portion A A of the socket may incline slightly as regards the centre line of
the pipe.
Within the socket we mould or secure in composition of a sufficiently durable and
imperishable nature a lining L of special form and on the end of the spigot pipe we
similarly form a lining L¹.
The portion a where the linings are in contact with each other is parallel to the
pipe line.
The lining L has a projection 3 and a channel, 4 and the lining L' has a
projection 5 and a channel 6 so that there is always contact at two separate points
(viz. at a around the pipe and at around the pipe) in whatever normal position
the pipes may be fixed as well as when settlement of the ground subsequently
occurs.
Between the contact surfaces a and b there is an open space c and similarly there
will be an annular open space c¹ around the pipes within the contact points b.
The space 7 is filled with Portland cement.
We are aware that ordinary linings as applied to spigot and socket jointed pipes
are not new. We are also aware that in some cases cement is introduced between
such linings whereas in other cases such cement is omitted. There is no novelty in
linings per se whether with or without cement or in filling in cement above the
linings as at 7 above described.
By our invention we secure by the special formation of linings as above set forth
a new and improved joint and effect and therefore
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
The combination with the socket and spigot ends of pipes of respectively linings L
and L having contact surfaces at a and b and clearance spaces at c and the
several parts being arranged disposed or adapted for forming an effective pipe joint
substantially as herein set forth.
Dated this 23rd day of March 1896.
A. CRAWHALL CHAPMAN,
3 St. Nicholas Buildings, Newcastle-on-Tyne, Patent Agent.