Year: 1897

page_text: I, WILLIAM SYKES, 18, New Bridge Street, in the County of London, Civil
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to improvements in and relating to pipe joints and is
designed to provide for the connection of lengths of sewer pipes of stoneware
earthenware, concrete and the like.
A pipe joint according to this invention comprises a spigot and socket each
having securely connected thereto by casting an inner ring of composition (here-
after described) so that when the pipes are connected together the two faces of
the said rings may either be in contact or loosely fitting; the ring of composition
in the socket will extend only up a part of same leaving a portion of the socket
without any composition and the spigot will be correspondingly so jointed so that
an annular space is left on the outer portion of the socket capable of being filled
up with liquid cement grout poured in by means of two grouting holes made in
the socket of the pipes. To prevent the liquid cement grout from escaping I form
on the spigot end of the pipe a stoneware collar fixed in a position so that it will
butt against end of socket this collar may be made true on face by a flange of
composition (hereafter described) attached to same. A fillet of composition (made
in accordance with Patent No. 7499-1893, granted to me). Grease, or other suit-
able material is placed on the face of this collar and when the pipes are pushed
home is compressed and prevents the liquid cement grout from escaping during the
operation of pouring the same in.
By means of the two inner linings of composition one on spigot and one in socket
a watertight joint is secured when the pipes are pushed home which will prevent
the liquid cement grout from escaping into the sewer and likewise on the outer
portion the liquid cement grout is retained in the annular space by means of the
collar compressing the composition (referred to in Patent 7499-1893) between the
said collar and the end of the socket.
The two inner linings of composition are made preferably closely fitting but
they may be made to loosly fit and secured & made watertight with a luting of
composition (referred to in Patent 7499-1893) or other suitable material.
The composition linings may advantageously be formed by boiling together
gas tar, pitch, sulphur and ground limestone in suitable proportions and run into
position whilst hot by means of suitable dies.
T
1007

page_text: 17.
Improvements in and relating to Pipe Joints.
I, WILLIAM SYKES, of 18, New Bridge Street, Blackfriars, in the County of
London, Civil Engineer, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
This invention: relates to improvements in and relating to. pipe-joints and is
designed to provide for the connection of lengths of sewer pipes of stoneware,
earthenware concrete and the like.
In order that my invention may be clearly understood will proceed to explain
by the accompanying drawings.
Fig. 1 shows a section of my joint including a junction pipe.
Fig. 2 shows a section of my joint before being attached.
Fig. 3 shows a section of my joint when the two ends are attached.
...The joint as Fig. 3 shows comprises a spigot (1) and a socket, (2) each having
securely attached thereto by casting an inner ring (3) in the socket and a corre-
sponding ring on the end of the spigot (4) of suitable and noncorrodible material
(hereafter described) when the two lengths of pipe are connected together the
two rings of composition may either be in contact or loosely fitting. In case the
two linings are made so as to be in contact the joint is made by, merely pressing
the pipe home, but a more easy method of jointing the pipes would be to make
the two rings of composition fit loosely and jointed with ja luting of composition
as described in my Specification. No. 7499 granted to me on 12 April 1893. The
ring of composition in the socket will extend up about half of the socket (2) leav-
ing a portion of the socket without any composition (5) the ring. (4) of composition
on the spigot will correspond to that in the socket (3) so that when the two lengths
of pipe are connected together an annular space (11) is left as a receptacle for, Port-
land cement grout or other suitable jointing fluid. To prevent this liquid grout
from escaping from this annular space I form on the pipe a rim or collar (6) prefer-
ably made in stoneware which is substantially attached to the body of the pipe so
that when the two pipe ends are connected together this rim or collar abutts
against the end of the socket. During the process of burning the pipes there will
be great liability for this collar to become irregular and as it is of great importance
that it should closely and evenly abutt against the end of the socket attach to
this rim (6) a flange of composition (hereafter described) which is cast on the rim
by means of steel dies, supported on the spigot end of the pipe in the manner
described in my Specification No. 7498 of 12 April 1893 granted to me, this die
is made with a deep triangular groove so that by casting the composition (7) on
the rim or collar (6) a triangular projection (8) is formed. On the end of the
stoneware socket a corresponding triangular cavity (9) is formed in the stoneware
so that when the pipes are pushed home the projection (o) enters the cavity (9).
The joint is made by placing a fillet of composition made in accordance with
Specification No. 7499 of 12 April 1893 granted to me or other suitable composi-
tion or plastic material on the lining (3) and likewise a fillet against the triangular
projection (8) so that when the pipes are pushed home the respective faces are
brought together and the composition compressed which hermetically seals the
annular groove or cavity (11) to prevent the liquid cement from escaping.
On the socket (2) I form grouting holes (10) to allow. the space or cavity (11)
to be filled with Portland cement grout or other suitable material.
The composition linings or rings may advantageously be formed by boiling
together gas tar, pitch, sulphur and ground limestone in suitable proportions and
run into position whilst hot by means of suitable dies.
:

page_text: 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:-
A pipe joint fitted with inner rings of composition with an outer stoneware rim
attached to the pipe and faced with a flange of composition formed in triangular
shape, fitting in a corresponding triangular shaped cavity formed in the socket
so that when pushed home an annular space is formed to receive the Portland
cement grout.