IMPROVED MEANS OR APPARATUS FOR MOULDING AND CASTING LEAD SYPHON PIPES, OR STENCH TRAPS, OR OTHER BENT PIPES OR TUBES
Year: 1872

page_text: LETTERS PATENT to John Carter, Pattern Maker, and James Edward
Carter, Mechanical Draughtsman, of Halifax, in the County of
York, for the Invention of "IMPROVED MEANS OR APPARATUS FOR
MOULDING AND CASTING LEAD SYPHON PIPES, OR STENCH TRAPS, OR OTHER
BENT PIPES OR TUBES."
COMPLETE SPECIFICATION filed by the said John Carter and James
Edward Carter at the Office of the Commissioners of Patents, with
their Petition and Declaration, on the 11th May 1872, pursuant to
the 9th Section of the Patent Law Amendment Act, 1852.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
CARTER, Pattern Maker, and JAMES EDWARD CARTER, Mechanical
Draughtsman, of Halifax, in the County of York, send greeting.
WHEREAS we are in possession of an Invention for "IMPROVED MEANS
OR APPARATUS FOR MOULDING AND CASTING LEAD SYPHON PIPES, OR STENCH
TRAPS, OR OTHER BENT PIPES OR TUBES," and have petitioned Her Majesty
to grant unto us, our executors, administrators, and assigns, Her Royal
Letters Patent for the same, and have made solemn Declaration that wo
are the true and first Inventors thereof.

page_text: NOW KNOW IF, that we, the said Jonn Carter und James Duward
Carter, do hereby declare that the following Complete Specification,
under our hands and seals, fully describes and ascertains the nature
of the said Invention, and in what manner the same is to be performed,
in and by the following statement and accompanying Sheet of Drawings,
(that is to say):—
This Invention relates to the means of constructing syphon or bent
pipes or tubes employed in connection with drains and waterclosets,
for preventing the escape of noxious gases or vapours. Heretofore in
constructing such pipes, sheet lead has usually been beaten out or
blocked to the required shape in two halves or parts, and the said
parts were then united by soldering, or the said halves or parts have
been cast to the shape and afterwards soldered together, in either casc
the solder is found to be soon destroyed by the action of the noxious
gases, so that the pipes no longer remain serviceable in preventing
the escape of the said gases. It has also been the practice to solder
in the ferrule or seat for the plug after the syphon or pipe is completed,
which soldering is also liable to be destroyed and the ferrule become
disconnected, and thereby permit the escape of the water and the
noxious gases.
By means of our improved apparatus we are enabled to mould or
cast these pipes whole or without seam or joint, also with the ferrule
or seat for the plug inserted and cast in the said pipe, and thereby
dispense with the use of solder in the construction of such pipes.
The means or apparatus we employ to accomplish this result will
be readily understood by reference to the accompanying Sheet of
Drawings and the figures and letters marked thereon, wherein Fig. 1
is the side elevation of a moulding box suitable for this purpose; Fig. 2
is a plan of the same partly in section with the top part of the box
removed, and Fig. 3 is a cross section of the same taken on the line
X, Y, in Fig. 2.
It will be seen that this moulding box is for casting the double
curved pipes technically called "S pipes," the box being made to the
form of the outer surface of the required pipe, and the inside of the
said pipe is formed by cores as follows:-A is a metal core made
hollow as being lighter and affording greater facilities for fixing a
sand core B thereto. This sand core is made in a core box as usual,

page_text: except that the core bar or strengthening iron C is jointed at C', and
screwed at C to fit a screwed nut D formed on the end of a rod D'
which passes through the hollow core A, and has a thumbscrew D'
by which the said nut D is screwed on the core iron C, and thereby
the said sand core B is bound fast to the iron core A. A similar
hollow core bar A¹ and screw rod to connect to the iron of the said
core, is used at the other end of the moulding box, and handles E
and F are formed on or attached to the core bars A and A¹ for drawing
the said bars out of the moulding box. This core bar or iron O is also
formed with a socket joint at C³, so that when the metal cores A and A'
are drawn out by the two handles E and F, each bar A brings with it
one part of the sand core bar O separating at the socket joint O³. The
thumbscrew G is to secure the iron core A in position after it is put
into the mould. There are two handles H which screw on the studs I
for holding the top part of the box secure on the bottom when casting
or while the metal is being run into the mould, which is poured in at
the holes J from a lead pan in the usual manner. The ferrule K,
which is made of brass, is placed and held in the mould by means
of the screwed stud or pin L which may easily be regulated by the
thumbscrew M. The projecting part N of the pin L is not screwed
so that the ferrule may easily be placed thereon and the pin with-
drawn therefrom after casting.
I
:
The mould is so constructed as to allow an extra thickness and give
strength to the pipe at the bends (as will be seen) at N', in Fig. 2
and Fig. 3; Fig. 4 is a vertical section of a mould for casting
tops" for syphons or tubes, and Fig. 5 is a plan of the same.
$6
taper
The construction is as follows:-A is a cast metal mould bored out;
B is a cast metal block turned to form a core for the mould A, and so
that it will leave room or space suitable for the lead O which is poured
from a lead pan into the mould at D. The bolt E, Fig. 4, is to draw
the core B from the lead, and also to draw the lead O from the mould A
in manner following:-F is a wrought-iron bridge that swings on two
studs A', and has an open slot so as to clip on the bolt E, and G is a
loose plate to put between the bridge F and the handle H; K is a
stud for the loose plate G to work on. The handle H is screwed on
the bolt E and holds the core in position, and the head of the bolt E'
forms a bottom to the mould. After the lead is run into the mould
the plate G is removed, when the bolt E drops down, and then by

page_text: turning the bolt one quarter round the part E³ of the head takes into
a recess B¹ in the core, and then by a turn of the handle II the core
is withdrawn from the casting C, and by. again turning the handle H
the lead is withdrawn from the mould.
Figs. 6 and 7 are sectional elevation and plan of a similar apparatus {
in a reversed position. A is a cast-iron bonnett or top part of the box
turned out to the required shape. B is a cast-iron core or bottom part
turned to fit A, yet so as to allow the required thickness of lead for the
casting C; D, D, are the "runners or holes for the metal to be poured
into the mould.
"
Having thus fully described the nature of our said Invention, and
shewn by Drawings in what manner the same is to be or may be
performed or carried into practice, we would have it distinctly under-
.stood that we do not confine ourselves to the precise details, but what
we claim as of our Invention is,―
Firstly. The construction and employment of apparatus for moulding
and casting syphon pipes or other bent pipes or tubes, in manner herein
described and illustrated in the accompanying Drawings.
1
1
Secondly. The method or means of placing and casting the ferrule
or seat for plug K in syphon or other bent pipes or tubes, as herein 2
shewn and described.
In witness whereof, we, the said John Carter and James Edward
Carter, have hereunto set our hands and scals, this Ninth day
of May, in the year of our Lord One thousand oight hundred
and seventy-two
12
TATT
Witness,
JOHN CARTER.
(L.S.)
JAMES EDWARD CARTER. (L.S.)
WY. TASKER,
Tasker & Brierley,
Patent Agents,
Halifax, Bradford, & Blackburn.