IMPROVEMENTS IN AND MACHINERY FOR THE MANUFACTURE OF SANITARY PIPES, CHIMNEY POTS, AND OTHER SIMILAR FLANGED OR SOCKETED EARTHENWARE ARTICLES."
Year: 1878

page_text: LETTERS PATENT to Arthur Sabine and Timothy Sabine, both of Swadlincote,
in the County of Derby, for the Invention of "IMPROVEMENTS IN AND
MACHINERY FOR THE MANUFACTURE OF SANITARY PIPES, CHIMNEY POTS, AND
OTHER SIMILAR FLANGED OR SOCKETED EARTHENWARE ARTICLES."
PROVISIONAL SPECIFICATION left by the said Arthur Sabine and Timothy
Sabine at the Office of the Commissioners of Patents on the 25th March
1878.
ft
ARTHUR SABINE and TIMOTHY SABINE, both of Swadlincote, in the County of
Derby. IMPROVEMENTS IN AND MACHINERY FOR THE MANUFACTURE OF SANITARY
PIPES, CHIMNEY POTS, AND OTHER SIMILAR FLANGED OR SOCKETED EARTHENWARE.
ARTICLES."
The object of this Invention is an improved manufacture of sanitary pipes,
chimney pots, and other similar articles by one continuous process, and whereby the
same are not only more perfectly formed and present a better appearance, but are
uniformly homogeneous and free from cracks or other flaws throughout.
We feed the clay or other plastic material into a vertical cylinder in which
revolves a continuous screw, the blade of which is of varying pitch, wider at the
bottom than the top, and the internal surface of which cylinder is provided with
ribs or projections suitably disposed to prevent the clay rising again out of the
cylinder. To the bottom of this cylinder and below the ordinary die we apply one
portion of a moulding box (of a corresponding shape to the flange or socket required),
and the other portion of such moulding box requisite to complete the mould for
forming the said flange or socket is affixed to a platform or plate which is supported
in position in contact with the top portion of the moulding box herein-before
mentioned by means of a suitable crank actuated by a hand lever. This platform
.

page_text: or plate is capable of descending with the pipe or other article as it is pressed
through the ordinary die, and of rising again to its original position by the action
of weights passing over suitable pullies, or in any other convenient manner.
To permit the length of pipe or body to be cut off immediately below the die the
upper part of the moulding box is capable of descending a short distance on to 5
suitable stops, which action also serves, by letting in the air, to facilitate the
socketed portion leaving the moulding box.
The lower portion of the moulding box is pivoted or hinged to the platform to
allow of the removal of the moulded article without stopping the machine.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Arthur Sabine and Timothy Sabine in the Great Seal Patent Office
on the 25th September 1878.
ARTHUR SABINE and TIMOTHY SABINE, both of Swadlincote, in the County of
Derby. "IMPROVEMENTS IN AND MACHINERY FOR THE MANUFACTURE OF SANITARY
PIPES, CHIMNEY POTS, AND OTHER SIMILAR FLANGED OR SOCKETED EARTHENWARE
ARTICLES."
The object of this Invention is an improved manufacture of sanitary pipes,
chimney pots, and other similar articles by one continuous process, and whereby the
same are not only more perfectly formed and present a better appearance, but are
uniformly homogeneous and free from cracks or other flaws throughtout.
We feed the clay or other plastic material into a vertical cylinder in which
revolves a continuous screw, the blade of which is of varying pitch, wider at the
bottom than the top, and the internal surface of which cylinder is provided with
ribs or projections suitably disposed to prevent the clay rising again out of the
cylinder. To the bottom of this cylinder and below the ordinary die we apply one
portion of a moulding box (of a corresponding shape to the flange or socket required),
and the other portion of such moulding box requisite to complete the mould for
forming the said flange or socket is affixed to a platform or plate which is supported
in position in contact with the top portion of the moulding box berein-before
mentioned by means of a suitable crank actuated by a hand lever. This platform
or plate is capable of descending with the pipe or other article as it is pressed
through the ordinary die, and of rising again to its original position by the action
of weights passing over suitable pullies, or in any other convenient manner.
To permit the length of pipe or body to be cut off immediately below the die the
upper part of the moulding box is capable of descending a short distance on to
suitable stops, which action also serves, by letting in the air, to facilitate the
socketed portion leaving the moulding box.
The lower portion of the moulding box is pivoted or hinged to the platform to
allow of the removal of the moulded article without stopping the machine.
And in order that this our said Invention may be the more readily understood
and carried into practical effect, we have hereunto annexed a Drawing of our

page_text: improved machine for making sanitary pipes, and will now proceed to describe the
same, reference being had to the figures and letters of reference marked thereon.
Fig. 1 is a front sectional view, and Fig. 2 an exterior side view partially in
section of our improved machine drawn to a scale of about one inch to the foot;
and Fig. 3 is a plan of the platform shewing the lower portion of the moulding box
hinged thereto.
In all the views A is a vertical cylinder in which is mounted a shaft B provided
with the usual knives C at the upper end, carrying also a continuous screw D, and
at its lowest extremity a pair of knives E. The blade of the screw D is of varying
pitch, viz., wider at the bottom than the top; and the internal surface of the
cylinder surrounding the blade of the screw D is provided with ribs or projections' a
(seen in Fig. 2) arranged in diagonal form, as illustrated, or in any other suitable
direction, the object of the varying pitch of the blades of the screw and of such
projections being to prevent the clay turning round with the screw D and rising
again out of the cylinder.
Revolving motion is communicated to the shaft B by means of the driving shaft F
and bevil gearing G, the same being controlled by the fast-and-loose pullies H.
To the bottom of the cylinder A is affixed the usual die plate I, having suspended
in its centre the conical core J which determines the diameter of the pipe being
manufactured.
The moulding box for forming the socketed portion of the sanitary pipe in
accordance with this Invention consists of three parts, the upper part K being
affixed rigidly to the under side of the die plate I, the central portion L being
mounted upon the studs M so as to be capable, when released, of falling on to the
heads of such studs, and the lower portion N being hinged to the platform O, as
seen more clearly in Fig. 3. This lower portion N is furnished with a brass ring N1
fitting loosely in an annular recess; and the projecting part of which ring, when in
its highest position, also surrounds the lower extremity of the conical core J, as seen
in Fig. 1.
The platform O slides up and down upon the vertical rods P, which are secured
at their lower extremities to the plate Q, and a central rod R depending froin the
under side of the platform passes through a hole S formed in the plate Q. On the
under side of this plate is mounted a shaft T, which is cranked, as illustrated,
immediately beneath the central rod R in order that when turned by the hand
lever U to the position illustrated in Fig. 1 such crank may support the central
rod R, and so prevent the platform descending whilst the socketed portion of the
pipe is being formed, and when turned to the position illustrated in Fig. 2 may be
out of the way to allow the platform to descend with the length of pipe as it is
pressed through the ordinary die plate I. The platform rises self-actingly to the
position illustrated in Fig. 1 by means of weights suspended at the extremities of
the ropes V, which are affixed to each side of the platform and pass over pullies W
as illustrated.
The action of this machine may be described as follows:-The machine being in
motion, and the parts being in the position illustrated in Fig. 1, the clay or other
plastic material is introduced into the cylinder A through the opening X, and is by
means of the knives C and screw D prepared and forced down through the die
plate I into the moulding box, the operator meanwhile holding the platform O in
position by means of the hand lever U until he sees the clay oozing through the
perforations Y formed in the central part L of the moulding box, when he imine-
diately releases the hand lever U, and so allows the platform O, lower portion of
moulding box N, and brass ring N¹ to commence to descend along with the central
portion L of the moulding box, which now drops on to the heads of the studs M,
and the shock so produced, coupled with the admission of air at the to of the
moulding box, serves to facilitate the socketed portion leaving the said moulding
box. As the platform continues to descend the necessary length of pipe is forced
through the die plate I until the required length of pipe is obtained, when the
machine may be stopped by pushing the driving belt on to the loose pulley.

page_text: A wire passed between the upper and central portions of the moulding box serves
to cut off the newly-formed pipe, which may now be removed from the platform by
lifting up the handle Z (see Fig. 3) and so turning the lower portion N of the
moulding box upon its hinges until the pipe is received in a borizontal position
upon a suitable truck or cradle ready to be transported to the heating or drying
chamber. The brass ring N' is then removed from the pipe and replaced in position
on the lower portion N, and the platform O being thus relieved of its weight
ascends again by the action of the weights, and the same operation is ready to be
repeated.
Although we have only described the manufacture of sanitary pipes it will be
obvious that this construction of machine is equally useful for moulding chimney
pots and other earthenware articles having flanged or socketed oxtremities, the
moulding box being modified accordingly.
Having thus particularly described and ascertained the nature of this our said
Invention, together with the best methods with which wo are acquainted for
carrying the same into practical effect, we wish it to be distinctly understood that
we do not confine ourselves to the precise details, relative proportions, or dimensions
of the various parts of the machine herein-before described, and illustrated on the
accompanying Drawing, as the same may be considerably varied without departing
from the Invention; but that we claim,-
1st. The improved manufacture of sanitary pipes, chimney pots, and other, similar
flanged or socketed earthenware articles by one continuous moulding, process,
substantially as herein-before described.
2nd. The employment of a screw having a blade of varying pitch, substantially
as and for the purposes herein-before described, and illustrated on the accompanying
Drawing.
3rd. Forming the internal surface of the cylinder with ribs or projections, sub-
stantially as and for the purpose herein-before described, and illustrated on the
accompanying Drawing.
4th. The novel construction and arrangement of moulding box, and mode of
operating and admitting air to the saine, substantially as herein-before described,
and illustrated on the accompanying Drawing.
5th. The use and application of a crank for supporting the platform temporarily
in position, substantially as and for the purpose herein-before described, and
illustrated on the accompanying Drawing.
In witness whereof, we, the said Arthur Sabine and Timothy Sabine, have
hereunto set our hands and seals, this Twenty-fourth day of September, in
the year of our Lord One thousand eight hundred and seventy-eight.