An Improvement in Sanitary Earthenware Pipes
Year: 1897

page_text: Date of Application, 1st Oct., 1897
Complete Specification Left, 13th Nov., 1897-Accepted, 18th Dec.,
1897
PROVISIONAL SPECIFICATION.
"An Improvement in Sanitary Earthenware Pipes."
I WILLIAM COTTRILL, of Oak Bank, Linden Avenue, Ashton-on-Mersey, in the
County of Chester, Pattern Card Maker, do hereby declare the nature of this
invention to be as follows:-
This invention relates to sanitary earthenware pipes the object being to make
a good and perfect joint all around two adjacent pipes.
For this purpose I form a screw or helical thread upon one end of each pipe
and at the other end I provide a suitable socket or enlargement inside which I
form a thread into which the first named thread will fit.
The threads are preferably so long that it will require two or three turns of
the screwed end of the pipe in the socket of the adjacent pipe to fit the two com-
pletely together and in this way a more perfect joint is ensured. For sewage
pipes a washer of india rubber would be placed between the screwed end of the
pipe and the inner end of the socket.
GEO. DAVIES & SON .
Agents for the Applicant, 4, St. Ann's Square, Manchester.
“An Improvement in Sanitary Earthenware Pipes."
I WILLIAM COTTRILL, of Oak Bank, Linden Avenue, Ashton-on-Mersey, in the
County of Chester, Pattern Card Maker, do hereby declare the nature of this
invention and in what manner the same is to be performed to be particularly des-
cribed and ascertained in and by the following statement:-
This invention relates to sanitary earthenware pipes, the object being to make
a good and perfect joint all around two adjacent pipes
The nature of my said invention and the manner in which the same is to be
performed or carried into practical effect will be readily understood on reference
to the accompanying sectional drawing and the following explanation thereof.
The drawing represents a section of the adjacent ends of two of my improved
earthenware pipes showing clearly the improved method of making the joint.
For the purposes of my invention I form upon one end a* of each pipe a screw
or helical thread b, and at the other end I provide a suitable socket or enlarge-
ment inside which I form a thread or screw e into which the first named
thread will fit, the said threads being made in or on the earthenware itself.
The threaded portions b and c are preferably so long that it will require one or
Pine R71
•

page_text: two turns of the screwed end of one pipe in the socket of the adjacent pipe to fit
the two completely together, and in this way a more perfect joint is ensured.
For sewage pipes a washer of india rubber would be placed between the screwed
end of the pipe and the inner end of the socket, or preferably, a flange d would be
provided near the screwed end to form an abutment and the india rubber washer
would be made with a turned-up edge as shown at d.
Having now particularly described and ascertained the nature of my said in-
vention and in what manner the same is to be performed I declare that what I
claim is:-
The improvement in sanitary earthenware pipes consisting in forming a screw
thread on the spigot end of each pipe, and forming a corresponding screw thread
inside the socket end of the same, such threads being made in or on the earthen-
ware itself so that the said pipes can be connected together by screwing, substan-
tially as hereinbefore described and illustrated by the drawing annexed.
Dated this 9th. Day of November 1897.
GEO. DAVIES & SON
Agents for the Applicant, 4, St. Ann's Square, Manchester.
GEO. DAVIES & SON
Agents for the Applicant, 4, St. Ann's Square, Manchester.