IMPROVED MACHINERY FOR FORMING AND WELDING, AND FINISHING COUPLINGS USED FOR CONNECTING STEAM, GAS, AND WATER PIPES
Year: 1873

page_text: LETTERS PATENT to William Tasker (of the Firm of Tasker & Brierley),
of Halifax, in the County of York, Patent Agent and Consulting
Engineer, for the Invention of "IMPROVED MACHINERY FOR FORMING
AND WELDING, AND FINISHING COUPLINGS USED FOR CONNECTING STEAM, GAS,
AND WATER PIPES."- A communication from abroad by Mildred
Blakey, of Etna, Allegheny County, Pennsylvania, United States of
America.
Sealed the 2nd June 1874, and dated the 4th December 1873.
PROVISIONAL SPECIFICATION left by the said William Tasker at the
Office of the Commissioners of Patents, with his Petition, on the
4th December 1873.
.
I, WILLIAM TASKER (of the Firm of Tasker & Brierley), of Halifax,
in the County of York, Patent Agent and Consulting Engineer, do
hereby declare the nature of the said Invention for "IMPROVED MACHINERY
FOR FORMING AND WELDING, AND FINISHING COUPLINGS USED FOR CONNECTING
STEAM, GAS, AND WATER PIPES," a communication to me from abroad by

page_text: Mildred Blakey, of Etna, Allegheny County, Pennsylvania, United
States America, to be as follows:-
This Invention has for its object the construction of improved
machinery for forming and welding, and finishing metallic couplings
used for connecting steam, gas, and water pipes, at one operation, and
ensuring accuracy of size, together with great facility of production.
I employ a series of rollers having collars thereon arranged around a
central roller or mandrill. The thickness of the couplings to be made
determines the space between the periphery of the geared squeezing
rollers and the central mandrill.
The several rollers are driven by means of gear wheels and square
shafts entering square holes in the bosses or necks of the several
rollers.
The central roller or mandrill is provided with a handle at one end,
and a guide piece is introduced into the space between the two nearest
or leading rollers for purposes herein-after explained.
The action of the machinery is as follows:-A strip of metal of
suitable length, or a “blank” from which to make a coupling, is heated
to welding heat, and its end introduced between one of the rollers, the
mandrill, and the guide, whereon it is by the rotation of the several
rollers carried around the central roller or mandrill, and welded by the
pressure. The continued action of the rollers and the collars thereon
finish and smooth the periphery and ends of the coupling, whereon the
top rollers are raised and the mandrill, by means of its handle, is lifted
out and the finished coupling is removed.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said William Tasker in the Great Seal Patent Office
on the 4th June 1874.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
TASKER, of the Firm of Tasker Brierley, of Halifax, in the County 3
of York, Patent Agent and Consulting Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Fourth day of December, in the

page_text: The central roller or mandril is provided with a handle at one end,
and a guide-piece is introduced into the space between the two nearest
or leading rollers for purposes herein-after explained.
'
The action of the machinery is as follows:-A strip of metal of
suitable length, or a "blank" from which to make a coupling, is heated
to welding heat, and its end introduced between one of the rollers, the
mandril, and the guide, whereon it is by the rotation of the several
rollers carried around the central roller or mandril and welded by the
pressure. The continued action of the rollers and the collars thereon
finish and smooth the periphery and ends of the coupling, whereon the
top rollers are raised, and the mandril, by means of its handle, is lifted
out and the finished coupling is removed.
In order that this Invention may be fully understood, I herein give
reference to an accompanying Sheet of Drawings marked with figures
and letters of reference, the same letters referring to the same parts in
the various views or figures.
Fig. 1 is a side elevation; Fig. 2, a plan; and Fig. 3, a cross section
taken through the line a, b, in Fig. 1; Figs: 4 and 5 are details.
A is the framework, and B a series of rollers having collars C thereon;
these rollers are arranged round a central roller or mandril D, which is
provided with a handle D².
The series of rollers B are driven by gear wheels E mounted on square
shafts, which enter square holes in the bosses or necks F of the several
rollers.
The action of the machine is as follows: - A strip of metal G of
suitable length for forming a coupling, is first heated to welding heat,
and its end introduced between one of the rollers (say B¹), the mandril D
and the guide piece H, whereon it is by the rotation of the several rollers
carried around the central roller or mandril D and welded by the
pressure. The periphery and ends of the coupling are finished and
smoothed by the continued action of the rollers, whereon the top rollers
are raised by any suitable or convenient means, the mandril lifted or
drawn out from the rollers and the coupling removed therefrom.
In the manufacture of couplings by this process, it sometimes happen's
that the pressure necessary to make a perfect joint forces out the iron at
both ends of the weld, and forms what is termed a "fin." In Fig. 4 I

page_text: shew the roller B formed with cutting edges B² for the purpose of
cutting off this "fin" or surplus iron.
Having thus fully described the nature of this Invention, and shewn
by Drawings how the same is to be performed or carried into practical
operation, I would have it distinctly understood that I do not confine or
restrict myself to the precise details of construction of the machinery or
the number of rollers employed, as it will be evident such may be varied;
but what I claim is the construction, combination, and arrangement of
machinery for forming and welding, and finishing metallic couplings,
substantially as shewn and described.
In witness whereof, I, the said William Tasker, have hereunto set
my hand and seal, this Second day of June One thousand eight
hundred and seventy-four.
5 Witness,
J. W.
TASKER,
Clerk to Tasker & Brierley,
Patent Agents,
Halifax & Bradford.
WILLIAM TASKER. (L.S.)