AN IMPROVED METHOD AND APPARATUS FOR THE MANUFACTURE OF SANITARY AND OTHER POTTERY WARE PIPES
Year: 1876

page_text: LETTERS PATENT to James Smith, of the Firm of Thomas Smith and
Company, of Canal Potteries, Old Kent Road, in the County of Surrey,
for the Invention of "AN IMPROVED METHOD AND APPARATUS FOR THE
MANUFACTURE OF SANITARY AND OTHER POTTERY WARE PIPES."
PROVISIONAL SPECIFICATION left by the said James Smith at the Office of
the Commissioners of Patents on the 21st November 1876.
JAMES SMITH, of the Firm of Thomas Smith and Company, of Canal Potteries,
Old Kent Road, in the County of Surrey. "AN IMPROVED METHOD AND
APPARATUS FOR THE MANUFACTURE of SANITARY AND OTHER POTTERY WARE
PIPES."
Heretofore drain pipes and other sanitary pottery ware pipes formed with a
socket at one end have been produced from the machine in such a way that the
socket end is forced out of the machine first and then by another operation the plain
part and end. Now according to my Invention I make the plain part and socket
part all at one operation, and so that the plain part and end are pushed out of the
machine first and the socket end next, thus avoiding the necessity for turning over
the pipes end for end after they are made. By my method and apparatus con-
siderable saving of power is effected in the production of the pipe, and the whole of
the socket part is sound.
Instead of having a separate drum head for forming the socket part of the pipe as
heretofore I make the jaw of a socket shape and I place a corresponding core or die
therein so that the clay may be forced out between both. The jaw and core are also
formed with a lower cylindrical part corresponding to the plain part of the pipe.
The core or die is supported in its place at one or both ends.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said James Smith in the Great Seal Patent Office on the 19th May
1877.
JAMES SMITH, of the Firm of James Smith and Company, of Canal Potteries,
Old Kent Road, in the County of Surrey. "AN IMPROVED METHOD AND
APPARATUS FOR THE MANUFACTURE OF SANITARY AND OTHER POTTERY WARE
PIPES."
Heretofore drain pipes and other sanitary pottery ware pipes formed with a
socket at one end have been produced from the machine in such a way that the
socket end is forced out of the machine first, and then by another operation the
plain part and end. Now according to my Invention I make the plain part and
socket part all at one operation, and so that the plain part and end are pushed out
of the machine first and the socket end next, thus avoiding the necessity for turning
over the pipes end for end after they are made. By my method and apparatus con-
siderable saving of power is effected in the production of the pipe and the whole of
the socket part is sound.
Instead of having a separate drum head for forming the socket part of the pipe as
heretofore I make the jaw of a socket shape and I place a corresponding core therein
so that the clay may be forced out between both. The jaw and core are also
formed with a lower cylindrical part corresponding to the plain part of the pipe.
And in order that this my said Invention may be more fully understood I will
now proceed to describe the same with reference to the accompanying Drawings, of
.which―
Figure 1 is a plan of the foundation plate and parts connected therewith for hold-
ing the socket-shaped jaw.
Figure 2 is a vertical section through the whole apparatus, foundation plate, and
jaw.
Figure 3, a plan of the under side of the jaw; Figure 4, a side view of same.
Figure 5, a vertical section of an apparatus more particularly adapted for large
size pipes or pipes made of certain clays of a very plastic nature for example;
Figure 6, a plan of under side of same.
Figure 7, plan of disc for holding jaw; and Figure 8, a detached view herein-
after described and referred to.
At each of the above Figures the same letters denote corresponding parts.
F is the jaw or die which is divided into two halves; each half slides in a groove 3
formed in the foundation plate P which carries the whole apparatus. This bed
plate P is formed with a circular aperture which takes the round disc D. N is the
core for forming the inside of the pipe. The two halves of the die or jaw are held
together by means of a lever g at each end taking over the lugs f¹; fare lugs with
holes through for inserting a hook or tommy serving to draw the two halves of the 4
jaw apart at the completion of the moulding operation.
The apparatus may be made to manufacture two or more pipes at a time by
having two or more circular apertures in the plate P to take the dies. The clay
being forced into the space E from above in the usual or any other suitable manner
the plain part of the pipe is formed or forced out of the apparatus, the clay passing
out below at E' first, and the socket part round the swelled out part of the core N
last. The jaw or die being then opened by drawing the two halves F apart the top
part of the socket (that is the part above the point n) is cut off, which may be done
by means of a thin sliding knife or blade between D and F, and the pipe is ready
and can be left in the same upright position (socket upwards) not requiring to be
turned end for ond as heretofore. At Figure 5 it will be seen that an entire ring G
is fitted in the jaw. This is done so that the lower part of the jaw only may be
opened when the plain and enlarged or socket part of the pipe have been formed,
and by continuing the movement of the machine the said socket part of the pipe is
forced out of the machine, or the same effect may be produced by inaking the upper 5

page_text: part of the jaw entire and the lower part F in halves as shown at Figure 8. These
latter arrangements of apparatus are particularly suitable for pipes made of certain
clays and also those of a large size.
The above described apparatus is also suitable for making pipes with other
5 enlarged end portion than the ordinary socket pipe, such as flanges, for example.
And having thus described and ascertained the nature of this Invention, I declare
that I claim,
Firstly. Forming potters' ware socket pipes and other pipes formed with enlarge-
ments at one end by means of die or jaw appliance in such a way that the smaller
0 or plain part is formed first and the socket or other enlarged part last, as and for
the purposes set forth.
Secondly. The die or jaw appliance, as and for the purposes set forth.
In witness whereof, I, the said James Smith, have hereunto set my hand
and seal, this Eighteenth day of May, in the year of our Lord One
thousand eight hundred and seventy-seven.
JAMES SMITH. (L.S.)