A NEW AND IMPROVED METHOD FOR THE FOR THE CASTING AND MAKING LEAD D TRAPS
Year: 1872

page_text: * LETTERS PATENT to James Pullen, the elder, and James Pullen, the
younger, of 37, Camden Street, Walworth, in the County of Surrey,
Plumbers, for the Invention of "A NEW AND IMPROVED METHOD FOR THE
Scaled the 31st December 1872, and dated the 19th July 1872.
PROVISIONAL SPECIFICATION left by the said James Pullen, the
elder, and James Pullen, the younger, at the Office of the Com-
missioners of Patents, with their Petition, on the 19th July
1872.
We, JAMES PULLEN, the elder, and JAMES PULLEN, the younger, of:
37, Camden Street, Walworth, in the County of Surrey, Plumbers, do
hereby declare the nature of the said Invention for "A NEW AND
IMPROVED METHOD FOR THE CASTING AND MAKING LEAD D TRAPS," to be as:
follows:

page_text: make them of sheet lead, soldered together in all the angles, such solder
being very liable to decay from the ammonia contained in drainage
matter, and in great danger of being disturbed when the plumber solders
on the outgoing or wastes into the sides of the trap, which renders them
liable to leak, and downright faulty in a great many cases, besides being
very expensive to manufacture. The improvements in the mode of making
consist in casting the sides or cheeks and band of an ordinary-shaped
D trap in one in iron, brass, or gun-metal moulds, suitably formed
for casting the same of the necessary thickness, and the casting of the
dip and top of an ordinary shaped D trap in one, in iron, brass, or gun-
metal moulds, suitably formed for casting the same of the necessary
thickness; the halves so formed are then secured together by any system
of burning, entirely obviating the use of solder so liable to destruction
by acids, and otherwise, as before-mentioned, in any portion of the
trap.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Pullen, the elder, and James Pullen, the
younger, in the Great Seal Patent Office on the 15th January 1873.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JAMES
PULLEN, the elder, and JAMES PULLEN, the younger, of 37, Camden
Street, Walworth, in the County of Surrey, Plumbers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Nineteenth day of July, in the year
of our Lord One thousand eight hundred and seventy-two, in the thirty-
sixth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said James Pullen, the elder, and James Pullen,
the younger, Her special licence that we, the said James Pullen, the
elder, and James Pullen, the younger, our executors, administrators, and
assigns, or such others as we, the said James Pullen, the elder, and
James Pullen, the younger, our executors, administrators, and assigns,
should at any time agree with, and no others, from time to time and at
all times thereafter during the term therein expressed, should and
lawfully might make, use, exercise, and vend, within the United
Kingdom of Great Britain and Ireland, the Channel Islands, and Isle
of Man, an Invention for "A NEW AND IMPROVED METHOD OF CASTING AND
་

page_text: MAKING LEAD D TRAPS," upon the condition (amongst others) that we,
the said James Pullen, the elder, and James Pullen, the younger, our
executors or administrators, by an instrument in writing under our, or
their, or one of their hands and seals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the same
was to be performed, and cause the same to be filed in the Great Seal
Patent Office within six calendar months next and immediately after
the date of the said Letters Patent
MAKING LEAD D TRAPS," upon the condition (amongst others) that we,
the said James Pullen, the elder, and James Pullen, the younger, our
executors or administrators, by an instrument in writing under our, or
their, or one of their hands and seals, should particularly describe and
ascertain the nature of the said Invention, and in what manner the same
was to be performed, and cause the same to be filed in the Great Seal
Patent Office within six calendar months next and immediately after
the date of the said Letters Patent
NOW KNOW YE, that we, the said James Pullen, the elder, and
James Pullen, the younger, do hereby declare the nature of the said
Invention, and in what manner the same is to be performed, to be par-
ticularly described and ascertained in and by the following state-
ment :-
:
The said Invention relates to improvements in the manufacture of
5 lead D traps, as used by plumbers by casting and making them in two
halves, the body being one hälf, the dip and top being the other half;
the halves so formed are then burnt together; for this purpose we use
two sets of moulds, one set for the casting of the body, the other set for..
the casting of the top.
) And in order that the said Invention may be properly understood we
will now proceed more accurately to describe the same, and for that
purpose. we will refer to the several Figures on the Sheets of Drawings,
which will be understood by any person acquainted with casting in metal
moulds, and the same letters shall be taken to represent corresponding
5 parts in the Figures of each Sheet.
Figure 1 represents the mould used for casting the body of the trap
with side or check removed to show core C, with flange F of core, which
is held in its place by pins through flange of core into outer case M of
mould at P, P, of Figure 2, which is a longitudinal section of same
6 mould, showing the manner in which the outer case of mould is held to
the stand S which supports it; Figure 3 is a transverse section of mould
taken at the line 1, 1, of Figure 1, which shows the passage through which
the metal is poured; Figure 4 is a longitudinal section of mould used for
casting the top of the trap, which come apart at line 2, 2, showing section
of core C; Figure 5 is a transverse section of mould taken at line 2, 2,
of Figure 4, intervening spaces being left as marked by diagonal line 1°

page_text: for charging the mould; Figure 6 is another longitudinal section of
mould taken at the line 1, 1, of Figure 4.
Having now described the nature of the said Invention, and the.
manner in which it is carried into effect, we would have it distinctly
understood that what we claim as our Invention is the appliance for
casting and making lead ☐ traps, as herein described and illustrated in
the accompanying Drawings.
In witness whereof, we, the said James Pullen, the elder, and
James Pullen, the younger, have hereunto set our hands and
* seals, this Fifteenth day of January, in the year of our Lord One
thousand eight hundred and seventy-three.
j
JAMES PULLEN. (L.S.)
JAMES PULLEN. (L.s.)