Improvements relating to Pipe-joints.
Year: 1890

page_text: Date of Application, 18th Mar., 1890
Complete Specification Lett 8th Dec.
1890-4ccented 17th Jan 1891
PROVISIONAL SPECIFICATION.
Improvements relating to Pipe-joints.
I, WALTER CLIFFORD TYNDALE, of Swallowfield, Ealing, in the County of
Middlesex, Civil Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to pipe-joints of the kind or class described in the Specifications
of the following former Letters Patent cic. :-No. 15520 of 1887 and 4039 of 1873
both granted to W. H. C. Stanford that is to say, pipe-joints such as are commonly
known as Stanford" joints. In these joints a ring or collar of bituminous or other
suitable material formed upon the extremity of one of the pipes to be united is adapted
To enter a socket upon the other pipe provided with a lining of similar bituminous or
other material the said ring or collar and lining having surfaces which, when the
pipes are placed together, will fit one within the other, and thus constitute a tight.
joint.
The object of my said invention, is to provide for making the joint, when com-
pleted, as rigid as a simple cemented joint, whilst retaining the advantage peculiar
to the Stanford joint of ease and rapidity in laying.
For this purpose. I make the socket of the pipe-coupling containing the aforesaid
lining of bituminous, or other substance, of greater depth than is necessary to
contain the said lining, so that when the pipes are joined there will be an annular
space at the mouth of the socket. Into this space I insert a quantity of cement,
which is securely packed all around the joint and which ensures great rigidity of the
joint.
In the portion of the socket in which the cement is placed I form one or more
recesses extending around the interior of the same in order to more effectually
secure the cement in place before the same has become hard or set.
To render the cement more readily accessible for being chipped out when it is
desired to remove or separate the sections of pipe, I sometimes provide the outer
end of the socket with a number of notches or scalloped-out portions 10 permit
the insertion and free use of a chipping tool.
Dated this 18th day of Moush 1800
HASELTINE, LAKE & Co..
45, Southampton Buildings, London, Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements relating to Pipe-joints.
I, WALTER CLIFFORD TYNDALE of Swallowfield, Ealing in the County of Middlesex,
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 ascertained in and by
the following statement :-
My invention relates to pipe joints of the kind or class described in the Specification
of the following former Letters Patent viz.: No. 4039 of 1873 and No. 15520 of 1887
both granted to W. H. C. Stanford, which pipe-joints are now con.monly known as
Stanford joints." In these joints a ring or collar of bituminous or other suitable
material formed upon the extremity of one of the pipes to be united, is adapted to
enter a socket, upon the other of the said pipes which is provided with a lining of
similar bituminous or other material, the said ring or collar and lining having surfaces
which, when the pipes are placed together, will fit accurately one within the other,
and thus constitute a tight joint.

page_text: The object of iny said invention is to provide for making the joint, when completed,
as rigid as a simple cemented joint, whilst retaining the advantages peculiar to the
Stanford joint of ease and rapidity in laying.
For this purpose I construct my improved joint as hereinafter described with
reference to the accompanying drawing which shows the same in horizontal ce
section.
A and B represent respectively portions of the two lengths of pipe to he joined
together; the pipe A is provided with the socket or enlarged extremity C having a
lining D of bituminous or other suitable material. The pipe B is provided with a
ring or collar E of similar material. The interior surface of the lining D is slightly
conical or taper as shown whilst the outer surface of the ring or collar E conforms
approximately to that of a segment or zone of a sphere, so that when the two pipes
are placed together with the extremity of the pipe B inside the socket C, the ring or
collar will accurately fit into the lining D.
I make the socket of the pipe A containing the aforesaid lining of bituminous or
other substance, of greater depth than is necessary to contain the said lining, so that
when the pipes are joined there will be an annular space at the mouth of the socket
around the pipe B. I fill this space with cement F, which is securely packed all
around the joint and which ensures great rigidity of the joint but is not subject to
action of the fluid passing through the pipes, the escape of such fluid being effectua
prevented by the ring or collar E and lining D. In the portion of the socket in
which the cement is placed, I sometimes form one or more annular grooves or
recesses G which extend around the interior of the same and into which the cem
will enter, so that the said cement when it becomes hard or set, will be m
effectually secured in place.
To permit access to the cement for the purpose of chipping the same out when it is
desired to remove or separate the setting of a pipe, provide the outer end of the
socket C with a number of notches C in which a suitable chipping tool can be readily
inserted and freely used.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed I wish it understood
that I claim
First. A pipe having a socket lined as above described and made of such depth
to leave a recess or cavity exterior to the lining for the reception of cement, si
stantially as and for the purposes set forth.
Second. The improved pipe joint constructed substantially as hereinbefore describ
and for the purposes specified.
Dated this 8th day of December 1890
HASELTINE, LAKE & Co.,
45. Southampton Buildings, London, Agents for the Applicant.