Gunnies, Traps, and other like Articles.
Year: 1888

page_text: Date of Application, 20th Apr., 1888
Complete Specification Left, 19th Jan., 1889
Complete Specification Accepted, 23rd Feb., 188
Gunnies, Traps, and other like Articles.
I, WILLIAM OATES, of Claremount Halifax, Yorkshire, Sanitary Pipe Manufacturer,
do hereby declare the nature of this invention to be as follows:-
My invention relates to a method of and apparatus for manufacturing from plastic
substances gullies, traps, and other like articles, and my improvements consist in the
use of moulding and pressing mechanism for above purposes.
In carrying out my invention I form an internal mould on a suitably sized plate
which mould I cover with a suitable thickness of plastic material; the plate with its
mould covered with the plastic material is then placed onto a rising and falling table
working within a box. At a suitable position above the rising and falling table I
place a crosshead carrying two external moulds or dies opposite to each other, one of
therefore
which corresponds to the internal mould upon the rising and falling table;
when rotary motion is given to the machine either by steam or hand power the table
is caused to descend into its box, carrying the internal mould with it. At the same
time the crosshead is caused to descend in such manner that the external mould
follows after the internal mould and is brought to bear with pressure upon the plastic
substances, provision being made in the dies for the exit of the overplus of plastic
material, and as the machine continues to revolve the parts which have descended
commence to ascend, when it will be found that one half of a gulley, trap, or other
article has been successfully formed. The internal mould for forming the corre-
sponding part is now placed upon the rising and falling table and the crosshead
turned around so as to bring the other mould or die into position for the purpose of
forming the corresponding half of the trap or gulley. When this is done the two
halves are joined together in any well known and convenient manner.
The apparatus for giving the various motions to the crossheads and tables consist
of an arrangement of cranks, cams, eccentrics rods, and other like mechanical
devices.
By the employment of the self-acting mechanism such as is herein described,
gullies, traps, and other like articles can be accurately and expeditiously made.
TL 10th day of Anril
TASKER & CROSSLEY,
Halifax, Agents.

page_text: Gullies, Traps, and other like Articles.
I, WILLIAM OATES, of Claremount, Halifax, Yorkshire, Sanitary Pipe Manufacturer,
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:
My invention relates to a method of and apparatus for manufacturing from plastic
substances gullies, traps, and other like articles, and my improvements consist in the
use of moulding and pressing mechanism for above purposes.
In carrying out my invention I form an internal mould on a suitably sized plate,
which mould I cover with a suitable thickness of plastic material; the plate with
its mould covered with the plastic material, is then placed onto a rising and falling
table working within a box. At a suitable position above the rising and falling table
I place a crosshead carrying two external moulds or dies opposite to each other, one
of which corresponds to the internal mould upon the rising and falling table;
therefore when rotary motion is given to the machine either by steam or hand power,
the table is caused to descend into its box, carrying the internal mould with it. At
the same time the crosshead is caused to descend in such manner that the external
mould follows after the internal mould, and is brought to bear with pressure upon the
plastic substance, provision being made in the dies for the exit of the overplus of
plastic material, and as the machine continues to revolve the parts which have
descended commence to ascend, when it will be found that one half of a gulley, trap,
or other article, has been successfully formed. The internal mould for forming the
corresponding part is now placed upon the rising and falling table and the crosshead
turned around so as to bring the otlier mould or die into position for the purpose of
forming the corresponding half of the trap or gulley. When this is done the two
halves are joined together in any well known and convenient manner.
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 sheets
of drawings, wherein Fig. is end elevation of a machine constructed according to
my invention, and Fig. 2 is front elevation of the same. The machine comprises a
foundation plate A provided with pillars or standards B for supporting the table C,
on which table is placed the moulding box D for the reception of a rising and falling
piston or table. Upon the top of this moving table is placed the internal mould E,
which is covered by the workinan with a suitable layer or thickness of plastic material.
Frepresents a revolving crosshead, to which are attached two external moulds G
and H, one of which moulds is a right hand and the other a left hand, corresponding
to the internal mould upon the rising and falling table. In order to determine the
thickness or crust of the article being formed, the external moulds attached to the
revolving crosshead are made adjustable by means of packing a, which packing can
be thickened or otherwise so as to place the external moulds further or otherwise from
the centre of the revolving crosshead, by which means the thickness of the clay can
he varied. The machine is automatic in its action, where I is the main driving shaft

page_text: driven by strap or other means from pulley J; and K is a fly wheel fixed on the end
of the said shaft. The shaft also has keyed upon it a pinion wheel L for driving the
gear wheel M mounted on shaft N, upon which is mounted a cam O employed to lift
the piston through the moulding box. The crosshead is caused to rise and fall by
means of connecting rods P attached to cranks R keyed upon the shaft N, the cam Ŏ
and cranks P being set and arranged so as to cause the crosshead to be raised,
simultaneously with the piston in the moulding box, the arrangement being such that
the crosshead and internal moulds rise and fall together, and in order to ensure that
the crosshead descends perfectly vertical, I employ blocks S, which enter into grooves
formed in the upright guide pillars T.
The modus operandi is as follows:- -When commencing to mould one half of a
gulley or other article, the internal mould E is placed upon the rising and falling
piston or table working within the moulding box D, and a layer of clay or other
plastic substance placed thereon by the workman, after which the corresponding
external mould attached to the crosshead F is arranged to be over the internal mould,
and the machine set in motion when the internal mould descends into the table D, the
crosshead following, and when the parts meet a squeezing operation is performed, the
superfluous clay escaping through one or more perforations made in the external
mould. The parts then rise from the position when one half of a gulley will have
been produced. The internal mould is now removed, and another mould, shaped to
produce the corresponding half, is placed upon the rising and falling table, when a
layer of clay is placed thereon, and the crosshead is now turned over to bring into
position a corresponding external mould, when the operation of squeezing is repeated,
and another half of a gulley produced. The two halves, which of necessity must be
right and left hand, are afterwards joined together in any ordinary well known
manner of joining such like plastic material. The crosshead is capable of working
upon centres or studs, and it is caused to revolve by means of the fly wheel U,
which is weighted at V for assisting it to turn over easily, and in order to ensure
that the machine will stop when the crosshead is in the position shewn in the
drawings. A brake W is brought into contact with the fly wheel K, and this is
done by means of a vertical rod X; the upper end of which is connected to one of
the sliding blocks S, the parts being arranged and timed so that the brake is put on
the fly wheel each time the crosshead is required to assume the position shewn in the
drawings.
By the employment of self acting mechanism such as is herein shewn and described,
one half of a gulley, trap, or other like article, can be accurately and expeditiously
made by one operation, consequently reducing the cost of production to a minimum.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
:-
Firstly. A machine for moulding halves of hollow plastic substances, comprising a
revolving crosshead carrying external moulds, such crosshead having reciprocatory
motion in addition to rotary motion, substantially as described.
Secondly. In a machine for forming moulds, a rising and falling table or piston
carrying a mould in combination with a rotary crosshead carrying corresponding
moulds, substantially as shewn and described.
Thirdly. The general arrangement and combination of parts substantially as herein
shewn and described for forming halves of hollow plastic substances.
Dated this 18th day of January 1889.
TASKER & CROSSLEY,
Halifax, Agents.