AN IMPROVEMENT IN MACHINERY FOR THE MANUFACTURE OF PIPES AND PROVISIONAL SPECIFICATION TUBES PROM LEAD AND OTHER SOFT METALS AND ALLOYS
Year: 1854

page_text: LETTERS PATENT to John Anthony and William Treeby Chafe, both of
Devonport, in the County of Devon, Engineers, for the Invention of
"AN IMPROVEMENT IN MACHINERY FOR THE MANUFACTURE OF PIPES AND
PROVISIONAL SPECIFICATION left by the said John Anthony and
William Treeby Chafe, at the Office of the Commissioners of Patents,
with their Petition, on the 10th May 1854.
We, JOHN ANTHONY and WILLIAM TREEBY CHAPE, both of Devonport, in the
County of Devon, Engineers, do hereby declare the nature of the said In-
vention for "AN IMPROVEMENT IN MACHINERY FOR THE MANUFACTURE OF PIPES
AND TUBES PROM LEAD AND OTHER SOFT METALS AND ALLOYS" to be as follows:-
Hitherto, in the manufacture, of pipes and tubes from lead and other soft
metals and alloys by hydraulic or other pressure, it has been usual to employ
only one die or mouth-piece and core bar, and consequently to produce one pipe
or tube only at a time; the inconvenience of this method is more especially
felt when the pipes are of small diameter. Now, our Invention consists in
combining two or more dies or mouth-pieces, either separately or in the same
plate, with core bars to fit in each; the dies or mouth-pieces to receive their
supply of metal from the same retaining cylinder or metal-reservoir, and to be

page_text: placed at the bottom or top of the retaining cylinder or metal reservoir, as at
present used, or at the sides, or at any other part of the same. By this
arrangement we are enabled to produce several pipes or tubes simultaneously,
and with the expenditure of no greater power than is employed for producing
a single pipe or tube.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said John Anthony and William Treeby Chafe in the Great
Seal Patent Office on the 10th November 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JOHN
ANTHONY and WILLIAM TREEBY CHAFE, both of Devonport, in the County of
Devon, Engineers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Tenth day of May, in the year of our Lord One
thousand eight hundred and fifty-four, in the seventeenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us,. the
said John Anthony and William Treeby Chafe, Her special licence that we,
the said John Anthony and William Treeby Chafe, our executors, adminis-
trators, and assigns, or such others. as we, the said John Anthony and William
Treeby Chafe, 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 "AN IMPROVEMENT
IN MACHINERY FOR. THE MANUFACTURE OF PIPES AND TUBES FROM LEAD AND OTHER
SOFT METALS AND ALLOYS," upon the condition (amongst others) that we, the said
John Anthony and William Treeby Chafe, or one of us, by an instrument in
writing under our hands and scals, or under the hand and seal of one of us,
should particularly describe and ascertain the nature of the said Invention, and
in what manner the same was to be performed, and causo 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 John Anthony and William Treeby
Chafe, do hereby declare the nature of our said Invention and in what
manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement thereof, reference being bad to
the Drawings hereunto annexed, that is to say :-

page_text: Hitherto, in the manufacture of pipes and tubes from lead and other soft
metals and alloys by hydraulic or other pressure, it has been usual to employ
only one die or mouth-piece and core bar, and consequently to produce one pipe
or tube only at a time; the inconvenience of this method is more especially felt
when the pipes or tubes are of small diameter. Now, our Invention consists in
combining two or more dies or mouth-pieces, either separately or in the same
plate, with core bars to fit in each; the dies or mouth-pieces to receive their
supply of metal from the same retaining cylinder or metal reservoir, and to be
placed at the bottom or top of the retaining cylinder or metal reservoir, as at
present used, or at the sides, or any other part of the same. By this arrange-
ment we are enabled to produce several pipes or tubes simultaneously in the
same machine, and with the expenditure of no greater power than is employed
for producing a single pipe or tube.
The Drawings annexed represent several different arrangements of dies or
mouth-pieces and core bars for manufacturing two or more pipes or tubes
simultaneously, according to our Invention; we do not, however, confine
ourselves to these particular arrangements, as they may be varied without
departing from our Invention.
Figure 1 is a vertical section, and Figure 1ª a sectional plan, of an arrange-
ment of dies or mouth-pieces and core bars for manufacturing two pipes or tubes
simultaneously in a downward press. Figures 2 and 2ª are similar views of an
arrangement for manufacturing three pipes or tubes in a downward press.
Figures 3 and 3ª are similar views of an arrangement for manufacturing four
pipes or tubes in a sideway press. Figures 4 and 4ª are similar views of an
arrangement for manufacturing four pipes or tubes in an upward press.
Figures 5 and 5 are similar views of an arrangement for manufacturing
four pipes or tubes in a downward press. Figures 6 and 6ª are similar views
of an arrangement for manufacturing two pipes or tubes in a sideway press.
Figures 7 and 7 are similar views of an arrangement for manufacturing three
pipes or tubes in a sideway press; and Figures 8 and 8 are similar views of
an arrangement for manufacturing three pipes or tubes in an upward press.
a, a, in all the Figures is the retaining cylinder or metal reservoir; b, b, are
the dies or mouth-pieces; c, c, are the core bars; and d, d, is the plate or
bridge in or to which the core bars are fixed.
All these arrangements are represented as adapted for manufacturing the
pipes or tubes hydraulic pressure; but we do not confine ourselves thereto,
as other suitable pressure may also be employed.
And having now described the nature of our said Invention, and in what
manner the same is to be performed, we declare that we claim as "An
0

page_text: Improvement in Machinery for the Manufacture of Pipes and Tubes from
Lead and other soft Metals and Alloys," the combining of two or more dies or
mouth-pieces and core bars, in such manner as to allow of two or more pipes
or tubes being manufactured simultaneously in the same machine.
In witness whereof, we, the said John Anthony and-William- Treeby
Chafe, have hereunto set our hands and seals, this Fifth day of
November, One thousand eight hundred and fifty-four.
JOHN
ANTHONY.
(L:S:)
WM TREEBY CHAFE. (L.S.)