IMPROVED APPARATUS FOR CUTTING, TURNING, AND SMOOTHING METAL PIPES, AND THE SURFACES OF BOLTS, RODS,
Year: 1865

page_text: LETTERS PATENT to George Mountford, of Grasscroft, in the County of
York, Manager, and Edward Worroll, of Upper Mill, in the County of
York, Plumber, for the Invention of "IMPROVED APPARATUS FOR CUTTING,
TURNING, AND SMOOTHING METAL PIPES, AND THE SURFACES OF BOLTS, RODS, OR
Sealed the 31st October 1865, and dated the 11th May 1865.
PROVISIONAL SPECIFICATION left by the said George Mountford and
Edward Worroll at the Office of the Commissioners of Patents, with
their Petition, on the 11th May 1865.
We, GEORGE MOUNTFORD, of Grasscroft, in the County of York, Manager,
and EDWARD WORROLL, of Upper Mill, in the County of York, Plumber, do
hereby declare the nature of the said Invention for "IMPROVED APPARATUS FOR
CUTTING, TURNING, AND SMOOTHING METAL PIPES AND THE SURFACES OF BOLTS, RODS,
OR SPINDLES," to be as follows:-
Our Invention consists in adapting to an ordinary screw stock or to an
apparatus of analogous construction a cutter or cutters which are capable of
being advanced by screws as is well known for the purpose of cutting into,
smoothing, or turning cylindrical surfaces of metal such as pipes, bolts, shafts,
or spindles. When the cutters are fixed in the stock or in any other equivalent
instrument which will embrace the pipe, bolt, or spindle to be operated upon
the stock is moved round by the handles and will cause the cutters to cut

page_text: into the metal. Cutters can also be applied for chasing screw threads at
once on the cylindrical surfaces; the dies may be traversed in connection with
the cutters which can be applied or secured to the stock in various ways, such
as by means of screws, wedges or excentrics.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Mountford and Edward Worroll in the Great Seal
Patent Office on the 11th November 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, GEORGE
MOUNTFORD, of Grasscroft, in the County of York, Manager, and EDWARD
WORROLL, of Upper Mill, in the County of York, Plumber, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of May, in the year of our Lord One
thousand eight hundred and sixty-five, in the twenty-eighth year of Her reign,
did, for Herself, Her heirs and successors, give and grant unto us, the said
George Mountford and Edward Worroll, Her special licence that we, the
said George Mountford and Edward Worroll, our executors administrators,
and assigns, or such others as we, the said George Mountford. and Edward
Worroll, 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 "IMPROVED APPARATUS FOR CUTTING,
TURNING, AND SMOOTHING METAL PIPES AND THE SURFACES OF BOLTS, RODS, OR
SPINDLES," upon the condition (amongst others) that we, the said George
Mountford and Edward Worroll, 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 George Mountford and Edward
Worroll, 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, reference being had to the Drawing
hereunto annexed, and to the letters and figures marked thereon (that is to say):-
Our Invention of "Improved Apparatus for Cutting, Turning, and Smoothing

page_text: Metal Pipes and the Surfaces of Bolts, Rods, or Spindles," consists in adapting
to an ordinary screw stock or to an apparatus of analogous construction a
cutter or cutters or other suitable tools which are capable of being advanced
by screws (as is well known) for the purpose of cutting into, smoothing, or
turning cylindrical surfaces of metal such as pipes, bolts, shafts, or spindles.
When the cutters are fixed in the stock, or in any other equivalent instrument
which will embrace the pipe, bolt, or spindle to be operated upon, the stock is
moved round by the handles, and will cause the cutters to cut into the metal.
Cutters can also be applied for chasing screw threads at once on the cylindrical
surfaces, the dies may be traversed in connection with the cutters which can
be applied or secured to the stock in various ways, such as by means of screws,
wedges, or excentrics.
In the accompanying Drawing we have shown two modes of carrying our
Invention into effect. Figures 1 and 3 represent plan views, and Figures: 2
and 4 edge views of a pair of screw stocks with cutters, adapted thereto for the
purpose of cutting a pipe, bolt, rod, or spindle. In Figures 1 and 2 only one
cutter, a, is employed, and this is mounted in a socket b, which is firmly bolted,
screwed, or otherwise secured to one arm of the screw stock. The pipe or
other article to be operated upon is held. between the dies d, d, while the
cutter a is operating upon it, and as the latter cuts away metal it is advanced
from time to time by means of the screw c; Fig. 3, is a plan view and Fig. 4
an edge view of a screw stock provided with two sets of dies d, d, and two
cutters a, a. In this instance the cutters are mounted in sockets b which
are screwed or bolted to the sides of the stock, and the cutters are made to
pass through recesses cut out of the stock. It should be understood that if
it be only required to cut or sever a pipe or other article the dies d, d, merely
act as holders to keep the pipe or other article in a central position while the
cutter a is operating, and the dies may therefore if desired be "dumb dies,"
or merely holders. In such cases the stock with the cutter is moved one and
a half times round the pipe, and back again, taking care to screw up the cutter
from time to time as the metal is cut away by the backward, and forward
motion of the cutter until the pipe is cut through.
From the above it will be understood that the cutter may be put in either
in a line with the handles or at right angles thereto, or it may be put in
obliquely or in any other desired position. If it be desired to cut screws or
threads the screw stocks and dies may be of the ordinary kind; the cutter a
may be made to cut the thread roughly, leaving the dies as they follow the
cutter to clean up and finish the thread. By employing a cutter or cutters
with edges of suitable form the outer scale or skin of a cylindrical tube, bolt, or

page_text: spindle can be removed by means of a screw stock fitted with cutters as above
described, the same as can be done in an ordinary lathe.
Having now described our Invention of "Improved Apparatus for Cutting,
Turning, and Smoothing Metal Pipes, and the Surfaces of Bolts, Rods, or Spin-
dles," and having explained the manner of carrying the same into effect, we claim
as the Invention secured to us by Letters Patent as aforesaid the adaptation
to screw stocks of a cutter or cutters as and for the purpose herein set forth.
In witness whereof, we, the said George Mountford and Edward
Worroll, have hereunto set our bands and seals, the Eighth day of
November, in the year of our Lord One thousand eight hundred and
sixty-five.
Witness,
EDWARD VENABLES.
GEORGE MOUNTFORD. (L.S.)
EDWARD WORROLL. (L.S.)