Improved Means for Manufacturing Sinks or like Articles in Olay, Earthenware, or like Plastic Material
Year: 1893

page_text: Date of Application, 13th Sept., 1893
Complete Specification Left, 13th June, 1894-Accepted, 14th July, 1894
PROVISIONAL SPECIFICATION.
Improved Means for Manufacturing Sinks or like Articles in Olay,
Earthenware, or like Plastic Material:
We REGINALD STANLEY of Nuneaton in the County of Warwick Manufacturer
and JAMES BATES of Manor Court Road in the same town and county Brick
Yard Foreman, do hereby declare the nature of this invention to be as follows:-
Our invention relates particularly to the manufacture of sinks for household or
general purposes and consists of an improved method of and means for moulding
such sinks from clay or other plastic substance which operation has been usually
performed hitherto by hand labour necessitating the expenditure of much time and
skill. By the use of our improved press we produce a sink not only in a very
short space of time but one perfectly moulded, solid, and hard pressed and far
superior to a hand made article.
The apparatus may be constructed as follows.
We take an ordinary screw press or one specially constructed of sufficient size,
the plunger rod or threaded shaft being free to rise and fall on being rotated by a
hand actuated fly wheel situated above the threaded block. In place of the
ordinary plunger, we mount in the usual manner a plunger consisting of a large
metal plate bent upwardly at its edges and with a small flange at top and of the
exact shape and size externally of the inside of the sink about to be moulded. The
underside of this plate may have a rib on its undersurface to impress a groove or
channel in the sink.
We also provide a strong rectangular frame of metal of somewhat larger
dimensions than the sink and provided with vertical bolts or pins at its corners or
at suitable points which loosely take into eyelets or rings fitted. to the plunger
which when raised thus causes the frame to follow, it being suspended therefrom
by said pins or bolts.
The outer portion of the sink mould consists of four rectangular plates of cast
iron or other metal which we call "moulding plates of height and length
corresponding to the sides and ends of sink and if desired prepared so as to leave
an impressed or embossed design on same, and the ends of these plates are bevelled
so as to make a tight joint at the corners.
The operation is as follows-The workman takes a slab of clay or plastic
substance previously worked to the required consistency and shapes it into a
rectangular slab of sufficient size to easily fit within the four moulding plates. Said
slab is then placed upon a board upon which a piece of cloth or sacking or like
material has been laid and then slid or pushed on to a table or platform under the
plunger. The four moulding plates are placed in position around the slab and
the fly wheel turned until the frame descending completely surrounds said moulding
plates holding them tightly together, to ensure which the sides of said frame may
be made to lean towards each other slightly. The frame should then be wedged or
held tightly down on to table by bolts or otherwise, and the fly wheel is again
turned the plunger descending upon the clay enclosed within the moulding plates
thus moulding the shape of a sink therein. After the rising of the plunger and
frame attached thereto, the moulding plates are carefully removed by hand and the
sink, now almost finished, is withdrawn on to a drying board by the workmen
pulling the cloth or sacking on which it rests. The drain hole may be cut out with
a die by hand or in the press and the sink otherwise trimmed off and completed
previous to firing.

page_text: Instead of a screw press we may prefer to use steam or hydraulic power and
may also apply this principle to the manufacture of pans and receptacles of a
like nature.
Dated 13th September 1893
POPPLEWELL & Co.,
17 & 18, Southampton Buildings, London, W.C.,
Agents for the Applicants.
Improved Means for Manufacturing Sinks or like Articles in Clay,
Earthenware, or like Plastic Material.
We REGINALD STANLEY of Nuneaton in the County of Warwick Manufacturer
and JAMES BATES of Manor Court Road in the same town and county Brick
Yard Foreman do hereby declare the nature of our invention and the manner
in which it is to be performed to be particularly described and ascertained
in and by the following statement :-
Our invention relates particularly to the manufacture of sinks for household or
general purposes and consists of an improved method of and means for moulding
such sinks from clay or other plastic substance, which operation has been usually
performed hitherto by hand labour necessitating the expenditure of much time and
skill. By the use of our improved pressing apparatus we produce a sink not only
in a very short space of time but one perfectly moulded, solid, and hard pressed
and far superior to a hand made article.
The apparatus is constructed as hereinafter described and for the purpose of
more fully explaining such apparatus and the method of forming sinks by pressure
we have attached to this Specification a sheet of drawings to which we shall refer
and whereon Fig. 1 is an end view of our apparatus partly in section and partly in
elevation and Figure 2 is a side view of the same.
We take an ordinary screw press A or one specially constructed of sufficient size
the plunger rod or threaded shaft B being free to rise and fall ou being rotated by
a hand actuated fly wheel C situated above the threaded block D. In place of
the ordinary plunger we mount in the usual manner a plunger consisting of a large
metal plate casting or forging E, bent upwardly at its edges E' E' of the exact
shape and size externally of the inside of the sink about to be moulded. The
underside of this plate may have a rib on its undersurface to impress a groove or
channel in the sink and a boss or core F to form outlet. Secured to the top of
this plate or die E are flanges or projections G. G. in convenient positions say at
each corner.
We also provide a strong rectangular frame of metal H of somewhat larger
dimensions than the sink and provided with lugs J.J, and vertical bolts or pins K. K.
at its corners or at suitable points which loosely take into eyelets or holes in
lugs JJ, and projections or arms G G fitted to the plunger E which when raised
thus causes the frame H to follow, it being suspended therefrom by said pins
or bolts.
The outer portion of the sink mould consists of four rectangular plates L, L, L, L,
of cast iron or other metal which we call "moulding plates of height and length
corresponding to the sides and ends of sink and if desired prepared so as to leave
an impressed or embossed design on same, and the ends of these plates are bevelled
so as to make a tight joint at the corners.
The operation is as follows: The workman takes a slab of clay or plastic
substance previously worked to the required consistency and shapes it into a
rectangular slab M of sufficient size to easily fit within the four moulding
plates LL LL, said slab is then placed upon a board N. upon which a piece of
cloth or sacking or like material O'has been laid and then slid or pushed on to a

page_text: table or platform P under the plunger E. The four moulding plates L L L L are
placed in position around the slab and the fly wheel C turned until the frame H
descending completely surrounds said moulding plates L L L L, holding them.
tightly together, to ensure which the sides of said frame may be made to lean.
towards each other slightly. The fly wheel is again turned the plunger descending
upon the clay enclosed within the moulding plates thus moulding the shape of a
sink therein. After the rising of the plunger and frame attached thereto, the
moulding plates are carefully removed by hand and the sink, now almost finished,
is withdrawn on to a drying board by the workman pulling the cloth or sacking on
which it rests. The drain hole may be cut out with a die by hand or in the press.
and the sink otherwise trimmed off and completed previous to firing.
Instead of a screw press we may prefer to use steam or hydraulic power and may
also apply this principle to the manufacture of pans and receptacles of a like
nature.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner it is to be performed we declare that what we
claim is
CLAIMS.
1. In manufacturing sinks and other analogous articles from plastic material the
use of a press having a plunger such as E corresponding to the interior face of the
article to be produced in combination with a mould composed of loose vertical sides.
or plates such as L L L L held in position by a frame such as H embracing them.
during the process of pressing.
2. The apparatus for and method of moulding sinks and analogous articles on a
canvas or like temporary backing or surface such as O substantially as hereinbefore.
POPPLEWELL & Co.,
32, Southampton Buildings, London, W.C., Agents for the Applicants.