An Improvement in Apparatus for the Manufacture of Lead or other Metal Pipes.
Year: 1886

page_text: Date of Application, 16th Sep., 1886.
Complete Left, 23rd Nov., 1886.
Complete Accepted, 11th Jan., 1887.
DECED
An Improvement in Apparatus for the Manufacture of Lead or
other Metal Pipes.
I, SAMUEL GRATRIX of Alport Town, Manchester in the County of Lancaster, Lead
Merchant and Manufacturer do hereby declare the nature of this invention to be
as follows:-
This invention relates to an improvement upon the subject matter of previous
Letters Patent granted to me, bearing date 13th day of February 1879, No. 568, and
the object of the invention is to modify the apparatus described in the Specification of
such Letters Patent in order to render the same applicable for the manufacture of gas
piping which requires an increased amount of pressure.
For this purpose it is necessary that the steel pillar which supports the core should
be strengthened, and it is desirable that this should be effected without weakening the
ram, and without increasing the diameter of the ram and cylinder.
According to my invention, I make the ram and the slot which works on the cross
bar, of the same dimensions as usual, and in order to strengthen the steel pillar
without widening the slot and hence weakening the ram I make the said pillar not of
a round section as heretofore, but of an oblong form, being of the same dimension as
before in one direction so as to work within the slot of the ram, but of an increased
breadth (say about one quarter to one half more) in the reverse direction, whereby I
gain increased strength in the pillar without increasing the width of the slot in the
ram, or, I make the pillar of a circular section about a quarter to one half larger in
diameter than the slot, and I flatten two opposite sides thereof until it will work insido
the slot.
GEORGE DAVIES,
4, St. Ann's Square, Manchester,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
An Improvement in Apparatus for the Manufacture of Lead or
other Metal Pipes.
I SAMUEL GRATRIX of Alport Town Manchester in the County of Lancaster Lead
Merchant and Manufacturer do hereby declare the nature of my invention for AN
IMPROVEMENT IN APPARATUS FOR THE MANUFACTURE OF LEAD OR OTHER METAL PIPES
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
This invention relates to an improvement upon the subject matter of previous
Letters Patent granted to me bearing date 13th day of February 1879 No. 568 and
the object of the invention is to modify the apparatus described in the Specification of
such Letters Patent in order to render the same applicable for the manufacture of gas
piping which requires an increased amount of pressure.
For this purpose it is necessary that the steel pillar which supports the core should
be strengthened, and it is desirable that this should be effected, without weakening the
ram and without increasing the diameter of the ram and cylinder.
My method of effecting this object will be readily understood on reference to the
annexed sheet of drawings and the following explanation thereof.
Fig. 1. is a side elevation (partly in section) of the pillar and upper part of the ram,
of a lead pipe machine.
Fig. 2. is a front elevation, and Fig. 3. a.plan view of the pillar detached.
According to my invention I make the ram a, a and the slot b, b which works on 'the
cross bar c, c of the same dimensions as usual, and in order to strengthen the steel
pillar d;d without widening the slot b,b and hence weakening the ram a, a I'make the
said pillar, not of a round section as heretofore, but of an oblong form (see Fig. 3.)
being of the same dimensions as before in one direction (see Fig. 1.) so as to work
within the slot b, b of the ram a, a but of an increased breadth (say about one quarter to
one half more) in the reverse direction (see Fig. 2) whereby I gain increased strength
in the pillar did without increasing the width of the slot b,b in the ram. Or I make
the pillar d, d of a circular section about a quarter to one half larger in diameter than
the slot and I flatten two opposite sides thereof until it will work inside the slot b, b (as
shewn at Fig. 4.
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 :-
In apparatus for the manufacture of lead or other metal pipes the construction of the
steel pillar which supports the core substantially in the manner and 'for the purpose
hereinbefore more particularly set forth and illustrated by the drawings annexed.