An Improved Manufacture of Sink Stones and Gullies from Olay or other Plastic Material.
Year: 1893

page_text: Date of Application, 31st Jan., 1893
Complete Specification Left, 28th Oct., 1893-Accepted, 2nd Dec., 1893
PROVISIONAL SPECIFICATION.
An Improved Manufacture of Sink Stones and Gullies from Olay or
other Plastic Material.
I, JOHN JOHNSTON GREEN; of the Firm of Oates and Green, of Horley
Green Fire Clay Works, Halifax, in the County of York, Sanitary Pipe
Manufacturers, do hereby declare the nature of this invention to be as
follows:-
The primary object of my invention is to manufacture sink stones and other
flat, round, half round, or other shaped articles, and articles having one or more
sides and a bottom, from plastic material, but the apparatus is also applicable for
manufacturing gullies from the samo description of material.
According to my invention I employ a vertical machine somewhat after the
manner of a sanitary tube making machine, consisting of a rising table and a ram
above it for forcing down the clay, such description of machine I use in contra
distinction to a press.
•
In adapting the above named machine for the purpose of making sink stones,
I arrange the parts so that the sink is made with the bottom side uppermost, to do
this, I form on the top of the rising table a mould of the required size and shape.
The bottom of the upper oylinder is made with the required shaped dies, and after
the rising table with its mould has reached, or nearly reached, the top of its
upward movement, the ram within the upper cylinder forces down the requisite
supply of clay, which is forced upon the mould on the top of the table, whereby
with the additional aid of the dies the sink stone is quickly formed, after which the
dies are opened out and the column of clay is severed by any suitable form of instru-
ment, loaving the sink stone detached upon the table, after which, the table is made
to descend whon the sink stone is removed, and the operation is repeated
continuously, so that the sink stones can be made in quick succession. By
making these sink stones bottom side up, there is no joining of the clay midway
of the sink, as would be the case if the sink stone was made with the bottom
downwards.
In inaking gullies by the same process and the same machine, 1 propose to make
them with the bottom upward in the same manner as the sink stone, the requisite
mould being attached to the top of the table as in the previous case.
Dated this 30th day of January 1893.
TASKER & CROSSLEY,
Halifax, Agents.
COMPLETE SPECIFICATION.
An Improved Manufacture of Sink Stones and Gullies from Olay or
other Plastio Material.
I, JOHN JOHNSTON GREEN, of the Firm of Oates and Green, of Horley
Green Fire Clay Works, Halifax, in the County of York, Sanitary Pipe
Manufacturers, 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 :—
The primary object of my invention is to manufacture sinkstones and other flat,
round, half round, or other shaped articles, and articles having one or more sides
and a bottom from plastic material, but the apparatus is also applicable for manu-
facturing gullies from the same description of material.

page_text: •
Such being the nature and object of my invention, I will now proceed to describe
the same more fully, and for that purpose make reference to the accompanying
sheet of drawings illustrative thereof, wherein Fig. 1 is sectional elevation and
Fig. 2 plan view of my improved parts.
In carrying out my invention I employ a machine somewhat after the manner of 5
those used in making sanitary tubes consisting of a rising table and a ram above.
it for forcing down the clay, euch description of machine I use in contra distinction
to a press, the outlet of such machine being shewn at A. A table B is employed
forced up and down by hydraulic pressure through the medium of the ram Ĉ. ´In
adapting the above named parts for the purpose of making sinkstones I arrango 1
that the sink is made with the buttom side uppermost, one of which is shewn at D.
To do this I place a mould or core E on the top of the rising and falling table B.
The bottom of the upper cylinder, which is part of a sanitary tube making
machine, is provided with the dies or side pieces F, and after the rising table B
with its mould has reached or nearly the top of its upward movement, the ram I
within the cylinder forces down the requisite supply of clay which is forced upon
the mould E, whereby with the additional aid of the dies F the sinkstone is
formed, and in order to sever the column of clay so as to leave the newly shaped
sinkstone on its mould, 1 have connected the dies F with the part A. by means of
bolts G, but it will be observed that the nut or head a of the bolt G does not bind a
against the die, and this is done to enable me to sever the column of clay from the
sinkstone in the following manner :-
After the table has risen high enough to form the sinkstone, the said table is
lowered until the die comes in contact with the upper surface of the bolt head a,
thereby leaving a space between the underside of A and the sinketone in order to 2
insert a wire or cutter for severing the column of clay, thus the sinkstone is
detached and loft upon the tablo which is then made to descend when the sink-
stone is removed and the operation repeated continuously so that sinkstones can
be made in quick succession one after another. The dark lines 6 in the mould
indicate openings for the admission of air, and the horizontal dark line c indicates
a suitable length of felt or fustinn so that the sinkstone can more easily leavo
the top of the mould as I find a certain amount of atmospheric air passes
through the openings and under the fustian, and this prevents the moist clay from
adhering too strongly to the top of the mould..
By making these sinkstones bottom side up there is no joining of the clay midway
of the sink as would be the case if the sinkstone was made with the bottom
downwards.
In making gullies by the same process and the same machine I propose to
make them with the bottom upward in the same manner as sinkstones, the requisite
mould being attached at the top of the table B as in the previous case.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the saine is to be performed, I declare that what I
claim is :-
Firstly. The method of and apparatus for making sinkstones and other dish
shaped articles bottom side upwards in manner substantially as herein shewn and
described.
Secondly. The method substantially as herein shewn and described for con-
necting the dies loosely to the bottom of a sanitary pipe making machine for
purposes specified.
Dated this 97ch den of Databa– 1909
TASKER & CROSSLEY,
Halifax, Agents.