Improvements in Pipes.
Year: 1892

page_text: Date of Application, 10th Dec., 1892
Complete Specification Left, 3rd Aug., 1893-Accepted, 2nd Sept., 1893
Improvements in Pipes.
I, DANIEL PETER CRONIN, of 1 Mount Villas, Acton Green, in the County
of Middlesex, Contractor, do hereby declare the nature of this invention to be as
follows:-
This invention relates chiefly to an improved form of socket and spigot end for
sanitary earthenware and other pipes which do not admit of caulking and has for
its object to enable such pipes to be rapidly laid by unskilled labourers and to
ensure that such pipes when so laid shall not leak at the joints. The form of
jointing faces being also applicable to metal pipes for steam and hydraulic
purposes.
And in order that my invention may be fully understood I will proceed to
explain the same with reference to the accompanying drawing in which
Figure 1 shews a partial section of a sanitary earthenware pipe socket and spigot
constructed according to this invention.
Figure 2 shews my invention adapted to hydraulic pipes.
Now according to this invention I form the socket a conical instead of cylindrical
and at the bottom thereof I form a groove the portion e of the socket being
tapered. The spigot end of the pipe I form tapered at d and rounded at e to fit
into the socket of the next pipe in such a manner as to leave a gradually increasing
space between b and e.
The socket and spigot are preferably grooved as shewn to form a key for the
cement.
When the pipes are being laid, the man on the ground takes a pipe and fills
the groove b with soft cement and lowers it down to the man in the trench who
places the spigot in the socket of the pipe last laid and forces it well home by
which time the man above has ready another pipe to be laid.
When the pipes are in position the space is filled with stiff cement before the
joints are set in the usual way. Pipes constructed according to this invention can
be much more rapidly laid than by any other known method.
When the joints are set the line of pipes is very strong longitudinally and
transversely owing to the keying of the cement in the sockets and the joints are
watertight.
In applying my invention to hydraulic pipes I form the pipes with a groove A
at one end and a beading B at the other the inside edges being bevelled so as to
form a dovetailed recess C when the pipes are screwed up.
When the pipes are laid a gutta percha washer is placed in the groove A and
the bolts screwed up the gutta-percha then spreads and is forced into the recess C
and when the pipes are subjected to water pressure the gutta percha is forced into
the narrow end of the dovetail making a perfect joint.
Dated this 10th day of December 1892.
FREDK. WALKER,
11, Furnival Street, Holborn, London, E.C., Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
Improvements in Pipes.
I, DANIEL PETER CRONIN, of 1 Mount Villas, Acton Green, in the County
of Middlesex, Contractor, 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 chiefly to an improved form of socket and spigot end for
sanitary earthenware and other pipes which do not admit of caulking and has for
its object to enable such pipes to be rapidly laid by unskilled labourers and to
ensure that such pipes when so laid shall not leak at the joints. The form of
jointing faces being also applicable to metal pipes for steam and hydraulic
purposes.
And in order that my invention may be fully understood I will proceed to
explain the same with reference to the drawings filed with the Provisional
Specification in which :-
Figure 1 shews a partial section of a sanitary earthenware pipe socket and spigot
constructed according to this invention.
Figure 2 shews my invention adapted to hydraulic pipes.
Now according to this invention form the socket a conical instead of cylindrical
and at the bottom thereof I form a groove 6 the portion of the socket being
tapered. The spigot end of the pipe I form tapered at d and rounded at e to fit
into the socket of the next pipe in such a manner as to leave a gradually increasing
space between b and e.
The socket and spigot are preferably grooved as shewn to form a key for the
cement.
When the pipes are being laid the man on the ground takes a pipe and fills the
groove b with soft cement and lowers it down to the man in the trench who places
the spigot in the socket of the pipe last laid and forces it well home by which time
the man above has ready another pipe to be laid.
When the pipes are in position the space is filled with stiff cement before the
joints are set in the usual way. Pipes constructed according to this invention can
be much more rapidly laid than by any other known method.
When the joints are set the line of pipes is very strong longitudinally and
transversely owing to the keying of the cement in the socket and the joints are
watertight.
In applying my invention to hydraulic pipes I form the pipes with a groove A
at one end and a beading B at the other the inside edges being bevelled so as to
form a dovetailed recess C when the pipes are screwed up.
When the pipes are laid a gutta percha washer is placed in the groove A and
the bolts screwed up the gutta-percha then spreads and is forced into the recess C
and when the pipes are subjected to water pressure the gutta-percha is forced into
the narrow end of the dovetail making a perfect joint.
In conclusion I would remark that although I have shewn my improved pipe with
a tapered socket as being more easily jointed yet it will be seen that my invention
is also applicable to pipes having parallel sockets.
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 :-
I. The improved spigot and socket pipe having a socket a preferably tapered
with a groove or recess b at the bottom thereof and a tapering portion e substantially
as hereinbefore specified and for the purpose stated.
II. The improved spigot and socket pipe having the spigot end thereof rebated

page_text: to fit into a groove or recess at the bottom of the socket substantially as herein before
specified and for the purpose stated.
III. The improved hydraulic pipes having a recess A in one flange thereof and
a projecting ring B on the other flange thereof the internal edges of the pipes being
slightly bevelled as shewn at C substantially as described and shewn by Figure 2
of the drawings.
IV. The improvements in pipes substantially as hereinbefore set forth.
FREDK.
WALKER.
11, Furnival Street, Holborn, London, E.C., Agent for the Applicant.