AN IMPROVED APPARATUS FOR CUTTING IRON GAS OR OTHER PIPES
Year: 1865

page_text: LETTERS PATENT to William Edward Gedge, of the Firm of John Gedge
and Son; of No. 11, Wellington Street, Strand, in the County of Middlesex,
Patent Agent, for the Invention of "AN IMPROVED APPARATUS FOR CUTTING
IRON GAS OR OTHER PIPES."-A communication from abroad by Jules
Chartiez, of 39, Faubourg St. Martin, Paris, France.
Sealed the 6th July 1865, and dated the 11th January 1865.
PROVISIONAL SPECIFICATION left by the said William Edward Gedge,.
at the Office of the Commissioners of Patents, with his Petition, on
the 11th January 1865.
I, WILLIAM EDWARD GEDGE, of the Firm of John Gedge and Son, of No.
11, Wellington Street, Strand, in the County of Middlesex, Patent Agent,
do hereby declare the nature of the said Invention for "AN IMPROVED APPA-
RATUS FOR CUTTING IRON GAS AND OTHER PIPES," a communication to me from
abroad by Jules Chartiez, of 39, Faubourg. St. Martin, Paris, France, to be
as follows:-
This improved apparatus for cutting iron gas pipes will be best understood
by reference to the accompanying Sheet of Drawing; A, A, indicating the

page_text: form of cut. B, a flat knife of the shape shewn (Fig. 2), it may slide verti-
cally in a groove in the length and body of the screw-threaded knob E, E;
this knife B is governed in its vertical movement by a nut B¹, B', which
penetrates into the cut a, b, c, d, made in the knife. A bearing C, C, C, C,
may be set in motion by a recall screw D, to which is fixed a wrench D, D¹,
and may thus come and press the pipe which it is desired to cut against the
sides a¹, a¹. The bearing C, C, C, C, is guided in its movement by two tenons
which may slide in a groove made along the parts A, A. This improved
arrangement of screw stock has the great advantage of permitting the cutting
of pipes of different dimensions by the same apparatus, by elevating more or
less the bearing C by the aid of the recall screw. To cut with this apparatus
the pipe is placed in the screw stock, then by means of the recall screw D the
bearing C, C, C, C, is lifted so as to press the pipe against the sides a¹, a¹,
then the flat knife B is lowered by means of the nut B, B', so that it penetrates
the pipe, then having fixed in a vice one of the ends of the pipe to be cut, an
entire turn is given to the screw stock by means of the wrench levers K, K,
and the pipe is cut. When a pipe to be cut has at its extremity an extra
thickness or protuberance which prevents its entering the screw stock, then
by simply withdrawing the pins j, the lower piece P (which is joined with
the two vertical pieces A, A, as shewn Fig. 3) may be removed.
SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said William Edward Gedge, in the Great Seal Patent Office on
the 7th July 1865.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
EDWARD GEDGE, of the Firm of John Gedge and Son, of No. 11, Wellington
Street, Strand, in the County of Middlesex, Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Eleventh day of January, 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
me, the said William Edward Gedge, Her special licence that I, the said
William Edward Gedge, my executors, administrators, and assigns, or such
others as I, the said William Edward Gedge, my executors, administrators, and
assigns, should at any time agree with, and no others, from time to time

page_text: 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 IMPROVED APPARATUS FOR CUTTING IRON GAS OR OTHER PIPES," (a com-
munication to me from abroad by Jules Chartiez, of 39, Faubourg St. Martin,
Paris, France), upon the condition (amongst others) that I, the said William
Edward Gedge, my executors or administrators, by an instrument in writing
under my, 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 I, the said William Edward Gedge. do hereby
declare the nature of the said Invention, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the fol-
lowing statement, reference being had to the accompanying Sheet of Drawing
forming part of this Specification, and to the figures and letters of reference
marked thereon.
The apparatus for cutting pipes, the subject of this Invention, has the shape
indicated at A, A, Figure 1. The flat knife B has the shape shewn Figure 2 ;
it may slide vertically in a groove made in the length and body of the screw-
threaded cylinder, knob, or stock E, E; this knife B is governed in its vertical
movement by a nut B, B, which penetrates into the notch a, b, c, d, made in
the knife. A moveable bearing C, C, C, C, may be set in motion by a recall
screw D, to which is fixed a wrench D', D', and may thus come and tighten
against the sides a³, a¹, the pipe which it is desired to cut.
The bearing
C, C, C, C, is guided in its movement by two tenons, which may slide in a
groove made along the parts A, A. This new system of screw stock has the
great advantage of permitting the cutting of pipes of different dimensions with
the same apparatus, by lifting more or less the bearing C by the aid of the
recall screw. The process of cutting pipes with this apparatus is as follows :-
The pipe is introduced into the screw stock, then by means of the recall screw
D the bearing C, C, C, C, is raised so as to press the pipe against the sides a¹, a²,
the flat knife B is then lowered by means of the nut B³, B', so that it pene-
trates the pipe; then having fixed one of the ends of the pipe to be cut in a
vice one entire turn is given to the screw stock by means of the wrench
levers K, K, and the pipe is cut. When the pipes to be cut have at their
extremity an extra thickness which prevents their entering the screw stock by

page_text: simply withdrawing the pins j, the lower piece P may be removed, this piece
being joined with the two vertical pieces A, A, as shewn Figure 3.
In witness whereof, I, the said William Edward Gedge, have hereunto
set my hand and seal, this Seventh day of July, in the year of our
Lord One thousand eight hundred and sixty-five.
WE GEDGE (L.B.)