IMPROVEMENTS IN MACHINERY FOR FINISHING AND POLISHING CIRCULAR METAL RODS, BABS, AND SHAFTS, APPLICABLE ALSO TO THE MANUFACTURE OF METAL TUBES AND PIPES
Year: 1862

page_text: LETTERS PATENT to George Walter Dyson, of Tinsley, in the County of
York, Forge and Mill Manager, for the Invention of "IMPROVEMENTS
IN MACHINERY FOR FINISHING AND POLISHING CIRCULAR METAL RODS, BABS,
AND SHAFTS, APPLICABLE ALSO TO THE MANUFACTURE OF METAL TUBES AND
PIPES."
Sealed the 20th February 1868, and dated the 29th August 1862.
PROVISIONAL SPECIFICATION left by the said George Walter Dyson
at the Office of the Commissioners of Patents, with his Petition, on the
29th August 1862.
I, GEORGE WALTER DYSON, of Tinsley, in the County of York, Forge and
Mill Manager, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN MACHINERY FOR FINISHING AND POLISHING CIRCULAR METAL
RODS, BARS, AND SHAFTS, APPLICABLE ALSO TO THE MANUFACTURE OF METAL TUBES
AND PIPES," to be as follows:-
My machinery consists of a pair of rolls, set slightly at an incline, and each
inclined in an opposite direction to the other, both rolls being driven in the
same direction. The rod, bar, or shaft is introduced between guides and
between the ends of the rolls, and at right angles or nearly so to the direction
in which the rolls. are driven; then upon the rolls being made to rotate
through toothed gear, the rod, bar, or shaft is drawn between the rolls-in-a-

page_text: direction at right angles or nearly so to the circumference thereof, and is
thereby rendered cylindrical, smooth, and polished.
Instead of placing the rolls at an incline, my Invention also consists in
placing them parallel, and in fixing the guides between the rolls at an angle,
although I prefer the arrangement first described.
When applied to the manufacture of pipes and tubes the machinery remains
as before described, but in addition to the guides I employ a mandril between
the rolls, over which the pipe or tube is drawn.
SPECIFICATION in pursuance of the conditions of the Letters Pateut
filed by the said George Walter Dyson in the Great Seal Patent Office
on the 28th February 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
WALTER DYSON, of Tinsley, in the County of York, Forge and Mill Manager,
send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-ninth day of August, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-sixth year of
Her reign, did, for Herself, Her heirs and successors, give and grant unto
me, the said George Walter Dyson, Her special licence that I, the said
George Walter Dyson, my executors, administrators, and assigns, or such
others as I, the said George Walter Dyson, my 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 "IMPROVEMENTS IN MACHINERY FOR FINISHING AND POLISHING
CIRCULAR METAL RODS, BARS, AND SHAFTS, APPLICABLE ALSO TO THE MANUFACTURE
OF METAL TUBES AND PIPES," upon the condition (amongst others) that I, the
said George Walter Dyson, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals, should par-
ticularly 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 imme-
diately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said George Walter Dyson, do hereby declare
the nature of my said Invention, and in what manner the same is to be

page_text: performed, to be particularly described and ascertained in and by the
following statement thereof, reference being had to the Drawings hereunto
annexed, that is to say:-
My machinery consists of a pair of rolls, set slightly at an incline, and each
inclined in an opposite direction to the other, both rolls being driven.in the
same direction. The rod, bar, or shaft is introduced between guides and
between the ends of the rolls, and at right angles or nearly so to the direction
in which the rolls are driven; then upon the rolls being made to rotate
through toothed gear, the rod, bar, or shaft is drawn between the rolls in a
direction at right angles or nearly so to the circumference. thereof, and is
thereby rendered cylindrical, smooth, and polished.
The manner in which I construct the finishing and polishing machinery
and apply ordinary driving gear to it is shown in the accompanying Drawings.
Figure 1 is a front elevation; Figure 2, a plan; Figure 3 is an elevation
of the "housings". for the rolls, and Figure 4 is an elevation of the
housings for the pinions or toothed driving gear. These pinions are
arranged to drive both rolls in the same direction, and being such as are
generally used in driving rolls, need no further description.
A, A, are the housings for the rolls; B, B, are the rolls, the barrels of
which are inclined horizontally, and each in an opposite direction to the other;
C, C¹, and D, D', are the chocks supporting the brasses E, E, in which the
necks of the rolls revolve; F, F, are the tenors of the rolls, which I prefer to
form of the shape shewn at Figure 3; G is a strap fixed to the housing. A
similar strap, not shewn in the Drawings, is fixed to the corresponding part
of the housing. These straps receive the spindles of guide rollers H, H,
which keep the rod or other article, while being acted on by the rolls, in its
proper position between them, although I prefer to use guides in the shape of
rollers, yet guides in the form of flat bars or square blocks may be used, and
in some cases I use both rollers and bars. To keep up the upper roll I insert.
spiral springs between the chocks C and D ; K is a pressure screw for
regulating the pressure between the rolls; L, shows the position of a rod
passing between the rolls. It will be observed that the axes of the rolls and
of this rod are not in the same vertical plane; M, M, are coupling boxes
shaped on the inside to correspond with and receive the tenors on the inner
sides of the rolls, and also the coupling spindles N, N, which are similarly
shaped in section to the tenors; 0, 0, are other coupling boxes connecting
the spindles N, N, to the tenors of the driving gear; P is a support on
which the rod or other article is received after passing between the rolls and
-guided out through the pinion housings. The rod, bar, or shaft-should-be-first

page_text: prepared by being made more or less round in the ordinary manner by means
of grooved rolls, and while still hot is introduced between the outer ends of
the inclined rolls, before described. The rotation of these rolls causes the
rod, bar, or shaft to pass through the rolls and to issue from the opposite end
circular, smooth, and polished.
When applied to the manufacture of pipes and tubes the machinery
remains as before described, but in addition to the guides I employ a mandril
between the rolls, over which the pipe or tube is drawn. I do not limit
myself to any particular driving gear, nor to the particular form of housings,
before described.
And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that I claim, as my " Improve-
ments in Machinery for Finishing and Polishing Circular Metal Rods, Bars,
and Shafts, applicable also to the Manufacture of Metal Tubes and Pipes,"-
First, the employment of rolls, the barrels of which are inclined, and are
made to rotate in the same direction, through and between which metal rods,
bars, or shafts are made to pass by the rotation of such rolls, aided by guides,
substantially in manner and for the purposes herein-before described and
illustrated in the accompanying Drawings.
And second, the application of the finishing and polishing machinery,
herein-before described, to the manufacture of metal tubes and pipes.
In witness whereof, I, the said George Walter Dyson, have hereunto set
my hand and seal, this Twenty-sixth day of February, One thousand
eight hundred and sixty-three.
GEORGE WALTER DYSON. (L.S.)