IMPROVEMENTS IN THE CONSTRUCTION OF TOOLS USED FOR CUTTING TUBES OR PIPES."
Year: 1880

page_text: LETTERS PATENT to Samuel Buckley, of Guide Bridge, in the County of
Lancaster, for an Invention of "IMPROVEMENTS IN THE CONSTRUCTION OF
TOOLS USED FOR CUTTING TUBES OR PIPES."
PROVISIONAL SPECIFICATION left by the said Samuel Buckley at the Office
of the Commissioners of Patents on the 2nd July 1880.
"
SAMUEL BUCKLEY, of Guide Bridge, in the County of Lancaster.
"IMPROVEMENTS
IN THE CONSTRUCTION OF TOOLS USED FOR CUTTING TUBES OR PIPES."
This Invention relates to the construction of that class of hand tool employed for
cutting gas and other tubes or pipes wherein the cutting is effected by means of a
small steel chisel-edged disc, which is forced forwards by moans of a screw, the disc
being mounted at or near one end of a lever provided with a claw for holding the
tube or pipe. In some cases these tools are made simply with one cutting disc and
the claw, whilst in others two other cutting discs are mounted in the latter, so that
the cutting is effected by the combined action of three discs, one of which is forced
up by the screw as required.
An objection to pipe cutters of this class has always been that as the pipe is cut or
forced asunder by the wedge-like action of the disc or discs, a "burr" was always
raised on the two severed edges, which had to be removed by filing or otherwiso
before the end of the tube or pipe could be, entered into the screwing stocks for
cutting the screw thread.
My Invention is designed for the purpose of removing this "burr" at the time
that the tube or pipe is being cut, so as to prevent the necessity of its being
removed afterwards as above-named, and consists principally in combining with a
tube-cutter (of the class above referred to) a small adjustable chisel, which projects
inwards through the claw, its cutting edge being at right angles (or thereabouts) to
that of the cutting discs, so that as the cutting proceeds this chisel removes the
burr
as fast as it is thrown up by the cutting disc or discs. The cutting edge of
this chisel I form, by preference, with a double bevil or of a flat V-shape, so that it not
only removes the "burr," but at the same time chamfers off the edge of the ends of
the cut tube, so as to facilitate its introduction into the screwing stocks.
"
The chisel is adjusted by means of a screw, and is provided with a strong spring,
which allows it to give way slightly if submitted to too great a strain.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Samuel Buckley in the Great Seal Patent Office on the 31st
December 1880.
SAMUEL BUCKLEY, of Guide Bridge, in the County of Lancaster.
"IMPROVEMENTS
IN THE CONSTRUCTION OF TOOLS USED FOR CUTTING TUBES OR PIPES."
This Invention relates to the construction of that class of hand tool employed for
cutting gas and other tubes or pipes wherein the cutting is effected by means of a
small steel cutting disc, which is forced forwards by means of a screw, the disc being
mounted at or near one end of a lever provided with a claw for bolding the tube or
pipe. In some cases these tools are made simply with one cutting disc and the
claw, whilst in others two other cutting discs are mounted in the latter, so that the
cutting is effected by the combined action of three discs, one of which is forced up by
the screw as required.
An objection to pipe cutters of this class has always been that as the pipe is cut
or forced asunder by the wedge like action of the disc or discs, a "burr" was always
raised on the two severed edges, which had to be removed by filing or otherwise
before the end of the tube or pipe could be entered into the screwing stocks for
cutting the screw thread.
My Invention is designed for the purpose of removing this "burr" at the time
that the tube or pipe is being cut, so as to prevent the necessity of its being removed
-afterwards as above_named.
Such being the nature and object of my said-Invention, I will now proceed to
describe in detail the manner in which the same is to be or may be performed or
carried into practical effect, and in order that the same may be clearly understood,
I have annexed hereunto a Sheet of Drawings illustrative thereof, and have marked
the same with figures and letters of reference corresponding with those in the
following explanation thereof:-
Fig. 1 in the annexed Drawing is a side elevation, and Fig. 2 a section of the
head of a tube cutter with a single disc made according to my Invention. a, a, is
part of the handle or lever; b, b, is the claw; and c, c, the disc cutter.
My Invention consists principally in combining with a tube cutter (of the class
above referred to) a small adjustable tool d, d, which projects inwards through the
claw b, b, its cutting edge being at right angles (or thereabouts) to that of the
cutting discs c, c, so that as the cutting proceeds this tool d, d, removes the "burr"
as fast as it is thrown up by the cutting disc or discs.
The cutting edge of this tool I form, by preference, with a double bevel or of a
flat V-shape (as shown in front view, Fig. 3), so that it not only removes the "burr,"
but at the same time chamfers or tapers off the edges of the ends of the cut tube, so
as to facilitate its introduction into the screwing stocks.
The tool is adjusted by means of a nut f, f, working on its screwed end, and is
provided with a strong spring g, g, which allows it to give way slightly if submitted
to too great a strain.
The tool d, d, works in a cross groove formed in the claw. The screw at the end
of the tool and its nut can be dispensed with by providing notches in the side of the
tool, into which the forked end of the spring g,g, fits, but I prefer the nut and screw
as a simple and more accurate means of adjustinent.
Fig. 4 in the Drawing shows the application of my Invention to a tube cutter
with three cutting discs.
Having now described the nature and object of my said Invention, together with
the manner in which the same is to be or may be performed or carried into
practical effect, I wish it to be understood that I claim as my Invention, the
combination with a tube cutter (of the class above referred to) of a tool capable of

page_text: adjustment in a cross groove in the claw, for the purpose of removing the "burr" at
the time that the tube is being cut, substantially as hereinbefore described and
illustrated by the Drawings annexed.
In witness whereof, I, the said Samuel Buckley, have hereunto set my hand
and seal, this Twenty eighth day of December, in the year of Our Lord
One thousand eight hundred and eighty.
SAMUEL BUCKLEY. (L.S.)