Year: 1897

page_text: I, JOHN PRICE, of Swadlincote, in the County of Derby, Works Manager, do
hereby declare the nature of this invention to be as follows:-
My invention relates to pipe joints; particularly those known as Stanford joints.
According to my invention I form a joint with a socket deeper than that usually
made and with an inner annular shoulder of the same material as and integral
with the socket, forming practically an inner socket. Upon this shoulder I mould
a ring of composition similar to that in the Stanford joint. The interior of the
wider or outer socket in front of this annular shoulder is grooved circumferentially
with two or more deep lines or recesses. The spigot end has moulded upon its
exterior a ring of composition similar to that in the Stanford joint and immedi-
ately behind this ring, round the outside of the pipe are two or more deep lines
or grooves; so that when the composition covered spigot is placed in the composi-
tion covered inner socket formed by the annular shoulder a wide deeply grooved
outer chamber or socket of a width from the side of the spigot or inserted pipe,
equal to the combined thickness of the rings of composition on spigot end and
on socket, and of the annular shoulder of the socket is formed for the reception
and holding of Portland or other cement. I am aware that Stanford or similar
composition joints have been made with outer grooved chambers for the reception
of cement but practice has shewn that these outer chambers have not been wide
enough to hold a sufficient thickness of cement to withstand always hydraulic or
other pressure, as such chambers have derived their width round the spigot from
the thickness of the rings of composition alone; not as in the case of my improved
joint from the combined thickness of the rings of composition and an inner
annular shoulder of the same material as and integral with the socket of the pipe.
Dated this 11th day of November 1897.
I, JOHN PRICE, of Swadlincote, in the County of Derby, Works Manager, do
hereby declare the nature of the said 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 pipe joints; particularly those known as Stanford joints.

page_text: According to my invention I form a joint with a socket deeper than that usually
made and with an inner annular shoulder of the same material as and integral
with the socket, forming practically an inner socket. Within this shoulder I
mould a ring of composition similar to that in the Stanford joint. The interior
of the wider or outer socket in front of this annular shoulder is grooved circum-
ferentially with two or more deep lines or recesses. The spigot end has moulded
upon its exterior a ring of composition similar to that in the Stanford joint and
immediately behind this ring, round the outside of the pipe are two or more deep
lines or grooves; so that when the composition-covered spigot is placed in the
composition-covered inner socket formed by the annular shoulder a wide deeply
grooved outer chamber or socket of a width from the side of the spigot or inserted
pipe, equal to the combined thickness of the rings of composition on the spigot
end and on the socket, and of the annular shoulder of the socket is formed for the
reception and holding of Portland or other cement. I am aware that Stanford or
similar composition joints nave been made with outer grooved chambers for the
reception of cement, but practice has shewn that these outer chambers have not
been wide enough to hold a sufficient thickness of cement to always withstand
hydraulic or other pressure, as such chambers have derived their width round the
spigot from the thickness of the rings of composition alone; not as in the case of
my improved joint from the combined thickness of the rings of composition and
an inner annular shoulder of the same material as and integral with the socket
of the pipe.
In order that my invention may be fully understood I annex a drawing which
shows my improved pipe joint in longitudinal section.
In this drawing, A represents the socket end of a pipe B to which it is required
to joint the spigot end C of a pipe D. According to this invention the socket A
is made deeper than an ordinary socket, and it is also made with an inner annular
shoulder E integral with the socket A. and forming practically an inner socket.
Within the shoulder E there is moulded a ring F of composition similar to that
in the Stanford joint. The interior of the wider or outer socket A in front of
this annular shoulder E is grooved circumferentially with a number of deep lines
or recesses G. The spigot end C of the pipe D has moulded upon its exterior a
ring H of composition similar to that in the Stanford joint.
Immediately behind this ring H round the outside of the pipe D there is formed
a number of deep lines or grooves I so that when the composition-covered spigot
end C is placed in the composition-covered inner socket formed by the annular
shoulder E, a wide deeply grooved outer chamber or socket K of a width from the
side or the spigot end of the inserted pipe D equal to the combined thickness of
the rings F. and H, and of the annular shoulder E, is formed for the reception and
holding of Portland or other cement.
The forward edge of the ring of composition H on the spigot end is preferably
rounded as shown for the purpose of facilitating the insertion of the spigot end C
with its ring H into the ring F in the socket A.
The outer surface of the ring H on the spigot end is also preferably curved as
shown to approximately the form of a zone of a sphere struck from the centre line
of the pipe D so that the pipe D may be laid if required with a certain amount
of deviation from the axial line of the pipe B before the cement is run into the
splace K.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I déclare that what I
claim is:-
1. The mode of forming a pipe joint which consists in making a deep socket on
the one pipe with an inner annular shoulder integral with the socket, moulding
within said shoulder a ring of suitable composition then fitting into this ring,
a ring of suitable composition moulded upon and carried by the spigot end of

page_text: the other pipe, and then filling up the socket with suitable cement, substantially
in the manner herein before described.
2. The improved pipe joint constructed substantially in the manner hereinbefore
described with reference to the accompanying drawing.
Dated this 25th day of March 1898.
J. C. MEWBURN & ELLIS,
55 and 56, Chancery Lane, London, Chartered Patent Agents.