IMPROVED APPARATUS OR MECHANISM FOR MOULDING OR FORMING TRAPS FOR WATER- CLOSETS AND OTHER PURPOSES, SAME BEING USEFUL FOR IMPROVING THE FORM OR CONSTRUCTION OF SAID TRAPS
Year: 1879

page_text: LETTERS PATENT to William Mills Smeaton, of Newcastle Street, Strand, in
the County of Middlesex, Sanitary Engineer, for the Invention of " IMPROVED
APPARATUS OR MECHANISM FOR MOULDING OR FORMING TRAPS FOR WATER-
CLOSETS AND OTHER PURPOSES, SAME BEING USEFUL FOR IMPROVING THE
FORM OR CONSTRUCTION OF SAID TRAPS."
PROVISIONAL SPECIFICATION left by the said William Mills Smeaton at
the Office of the Commissioners of Patents on the 2nd October 1879.
WILLIAM MILLS SMEATON, of Newcastle Street, Strand, in the County of
Middlesex, Sanitary Engineer. "IMPROVED APPARATUS OR MECHANISM FOR
MOULDING OR FORMING TRAPS FOR WATERCLOSETS AND OTHER PURPOSES, SAME
BEING USEFUL FOR IMPROVING THE FORM OR CONSTRUCTION OF SAID TRAPS."
This Invention consists of a machine for moulding or forming traps, whereby I
am enabled to complete a trap without having a seam or joint, and cast all in one
piece.
In carrying out my Invention I adopt mainly the following arrangements :—
On a bed plate or stand, which I prefer to be of a T shape, I mount on each side
or end a sliding frame. Each of these sliding frames is connected to a lever or
handle or worm and gearing to bring the frames together or to separate same.
At right angles to those two frames I fix free to move on the other part of the
T frame another frame, also free to slide backwards or forwards, and actuated in
a similar manner to the other frames.
On each of the two frames first mentioned I fix or secure a cheek or mould of the
form of half of the outside of trap, and on the other frame I fix or secure a core or
mould to form about half the outgo of the trap, the other half being formed by building
upon this half other cores to form the internal shape of the trap. Between the
frames carrying the cheeks is a mandril, which rises through an opening in the
frame of the machine, said mandril being to form the inlet or dip pipe of the trap.
This mandril is actuated by lever arrangements similar to those actuating the sliding
frames, to cause said] mandril to be raised or lowered as required. The mould
forming the half of the outgo of the trap is fixed to the sliding frame before described,

page_text: and is made of a semicircular form, the rounded part forming the shape of the upper
part of the outgo. On the flat portion I build up other cores to form the other half,
and also other cores to form the internal shape of the trap.
In making a trap the two side moulds or cheeks are brought together, the mandril
being raised between same. The sliding frame carrying the portion to form the
outgo is then brought up nearer to the mandril, but sufficient space is left to allow
the metal to run. The lead is then poured in by suitable opening at the top, pre-
ferably between the cheeks or moulds, and the trap is cast into form. To take the
trap out the levers of the cheeks or moulds are actuated, and withdraw same. The
mandril is then lowered, and then the mould forming half the outgo is withdrawn,
leaving the cores built upon it, as described, in the trap. The trap is then taken
off the mandril and the cores removed, leaving the trap complete, and same issues
from the mould in the form of trap known as the "D" trap, with the outgo pipe
running straight against the dip pipe without any break. At the upper part of
the mandril I prefer to form two sliding cores, which when the trap is being moulded
more or less overlap the cores forming the inside of trap, same forming bottom
edge of dip pipe. These sliding cores are fixed by hinge or otherwise to the mandril,
and are actuated by lever or other suitable arrangements inside the mandril forming
dip pipe of trap, and therefore are not withdrawn with the loose cores, which are
described as left in the trap till removed from the mandril. The above described
arrangements are arranged to mould the traps with the dip pipe downwards. It is
evident however that the trap can be cast with the dip pipe uppermost. In this
case the mandril would be carried by suitable arrangements on the upper side of
the sliding frame, and having screw or other arrangements running through the
mandril that forms the dip pipe, so as to secure the loose core forming the bottom
part of trap; the other cores rest on the core forming the bottom part of trap.
The action is similar to that described, except that the mandril is drawn up after
the screw is released from the core forming bottom of trap. The trap can be cast
leaving an opening in the bottom for cleaning purposes, with the screw thread cast
thereon, onto which a nut is screwed closing said opening.
According to my arrangements it is evident that a bend when required can be
cast with the trap on the outgo into the shape of a trap known as the "S" trap.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Mills Smeaton in the Great Seal Patent Office on the 2nd
April 1880.
WILLIAM MILLS SMEATON, of Newcastle Street, Strand, in the County of
Middlesex, Sanitary Engineer. "IMPROVED APPARATUS OR MECHANISM FOR
MOULDING OR FORMING TRAPS FOR WATERCLOSETS AND OTHER PURPOSES, SAME
BEING USEFUL FOR IMPROVING THE FORM OR CONSTRUCTION OF SAID TRAPS,"
This Invention consists of a machine for moulding or forming traps for water
closets and other purposes, whereby I am enabled to complete a trap without
having a seam or joint, and cast all in one piece. In carrying out my Invention I
adopt substantially the following arrangements:-
At
On a bed plate or stand, which I prefer to be of a T shape, I mount on each side
or end a sliding frame. Each of these sliding frames is connected to a lever or
handle or worm and gearing to bring the frames together or to separate same.
right angles to these two frames I fix free to move on the other part of the T
frame another frame, also free to slide backwards or forwards, and actuated in a
similar manner to the other frames. On each of the two frames first mentioned I
fix or secure a cheek or mould of the form of half of the outside of trap, and on the
other frame I fix or secure a core or mould to form about half the outgo of the trap,
the other half being formed by building upon this half other cores to form the
internal shape of the trap. Between the frames carrying the cheeks is a mandril,
which rises through an opening in the frame of the machino, said mandril being to
form the inlet or dip pipe of the trap. This mandril is actuated by lever arrange-
ments similar to those actuating the sliding frames, to cause said mandril to be
raised or lowered as required. The mould forming the half of the outgo of the trap
is fixed to the sliding frame before described, and is made of a semicircular form,
the rounded part forming the shape of the upper part of the outgo. On the flat
portion I build up other cores to form the other half, and also other cores to form
the internal shape of the trap. In making a trap the two side moulds or cheeks
are brought together, the mandril being raised between same. The sliding frame
carrying the portion to form the outgo is then brought up nearer to the mandril,
but sufficient space is left to allow the metal to run. The lead is then poured in
by suitable opening at the top, preferably between the cheeks or moulds, and the
trap is cast into form. To take the trap out the levers of the cheeks or moulds are
actuated, and withdraw same. The mandril is then lowered, and then the mould
forming half the outgo is withdrawn, leaving the cores built upon it, as described,
in the trap. The trap is then taken off the mandril, and the cores removed, leaving
the trap complete, and same issues from the mould in the form of trap known
as the "D" trap, with the outgo pipe running straight against the dip pipe without
any break. At the upper part of the mandril I prefer to form two sliding cores,
which when the trap is being moulded more or less overlap the cores forming the
inside of the trap, same forming bottom edge of dip pipe. These sliding cores are
fixed by hinge or otherwise to the mandril, and are actuated by lever or other
suitable arrangements inside the mandril forming dip pipe of trap, and therefore
are not withdrawn with the loose cores, which are described as left in the trap till
removed from the mandril. The above described arrangements are arranged to
mould the traps with the dip pipe downwards; it is evident however that the trap
can be cast with the dip pipe uppermost. In this case the mandril would be
carried by suitable arrangements on the upper side of the sliding frame, and having
screw or other arrangements running through the mandril that forms the dip pipe,
so as to secure the loose core forming the bottom part of trap. The other cores rest on
the core forming bottom part of trap. The action is similar to that described, except

page_text: DESCRIPTION OF THE DRAWINGS.
Fig. 1 is a front elevation, part in section, of a moulding machine constructed
according to my said improvements; and Fig. 2 is an end elevation of the same,
showing part of the framing and part of the outside boxes of the mould in section,
as also part of the core in section; Fig. 3 is a cross section of the core taken at the
dotted line A on Fig. 2; and Fig. 4 is another cross section of the core taken at
the dotted line Bon Fig. 2; all of which Figures are marked with the like letters
of reference to the several parts. C, C, C, are trussels on which the bed plate or
frame D (in the form of a T) rests; and E, E, and F are slide rests, to which motion
is given by the levors G, G, G, that work on the pivots a, a, a, and are connected
to the slide rests by the links b, b, b, and the pins c, c, c, c, c, c, and on each of the
slide rests E, E; one half of the outside box of the mould H, H, is fixed by the
screw bolts d, d, d, d, and on the slide rest F the tube J receives the end of
the outside box of the mould e, which is held in the desired position by the set
scrow f, and to this portion of the mould box the section g of the core is attached,
which section is hollowed for the screw to work in, and on this screw the nut i
works, which nut is connected to the link j by the joint and pin k, the other end
of this link being connected to the joint and pin 7 to the section m of the core,
which section works on the joint and pin n attached to the section g, and sections o
and rest on section g. The handle h³ is to give motion to the screw h. Section o¹
is also connected to the outside end box e by the joint and pin r, and this section is
held in the proper position by the spring s fixed to the plummer block t. Section u
I call the mandril of the core, and what would be called the print end of this
section works in the chambers v, v, in the bed plate D, and motion is given to this
andril by the lever K, which works on the pivot w, and to this lever the link x is
attached by the pin y, and the other end of this link is connected to the print end
of the mandril u by the pin z, and by means of the guard a passing through the
lever K the mandril u is held in the desired position by the set screw b¹, and on
the top of the mandril u the sections e¹ and f¹ are placed, and the sections c¹ and d¹
rest on the sections o and p, and section g³ is placed on the top of the several other
sections which constitute the core; and is tho pour hole, into which the metal is
poured to enter the mould, and the space k represents the section of the casting
taken from such mould, and the dotted lines m³ (Fig. 1) represent the circular form
of the outlet of the trap. To produce a casting from the mould and machinery
attached thereto, as herein before described and illustrated, I proceed by bringing
the several parts thereof into the position shown by the several Figures on the
Sheet of Drawings, and then I pour the metal into the mould through the pour
hole , and as soon as such metal is set I withdraw the mandril u of the core for a
short distance by means of the lever K, after which I lower within the core the
section n by actuating the screw motion by means of the handle ¹. I then with-
draw the slide rest F by means of the lever G, to which slide rest the outside end
box c of the mould, as also the sections y, m, and o¹ of the core are attached, the
spring s yielding to allow the sections o¹ of the core to pass out. After this 1
remove the casting from the mandril u, and remove by hand the other sections of
the core from the interior of the casting, and the operation is completed of taking
a casting from the mould, and by the machinery as described. For some purposes

page_text: I modify the foregoing arrangements by dispensing with the screw and spring
motion to any section of the core by dividing the sections of that part of the core
into more sections, when the whole of the core except the mandril is removed by
hand from the casting, and for some purposes I also dispense with the lever action
to withdraw the mandril of the core, and withdraw the same by hand when rapidity
of casting is not required. The several sections of the core are held in position by
studs, pins, or grooves and corresponding projections of ordinary construction.
As my said improvements are capable of various modifications without departing
from the principle thereof, I do not restrict myself to the precise form or number of
the several sections or parts thereof, nor to the metal or material to be employed
for the production of castings from such moulding machinery.
Having now described the nature of my said improvements, and in what manner
the same are to be performed, I declare that I claim as my Invention, the construc-
tion of moulds and cores in sections for the production of castings of lead or other
suitable metal or material for traps for sanitary arrangements and other purposes,
as also the machinery connected therewith, as herein before described and
illustrated.
In witness whereof, I, the said William Mills Smeaton, have hereunto set
my hand and seal, this Second day of April, in the year of our Lord
One thousand eight hundred and eighty.
Witness,
T. MORGAN,
Secretary,
Inventors' Patentright Assª., Ld.,
21, Cockspur Street,
S.W.
W. M. SMEATON. (L.S.)