AN IMPROVED COMBINED KNIFE AND GLASS CUTTING INSTRUMENT."
Year: 1871

page_text: A
LETTERS PATENT to George Haseltine, of the "International Patent
Office," Southampton Buildings, London, for the Invention of
"AN IMPROVED COMBINED KNIFE AND GLASS CUTTING INSTRUMENT."
communication from abroad by Thelesphore Spénard, of Coaticooke,
Jeweller, and C. H. Letourneux, of Montreal, Merchant, both in the
Province of Quebec, Canada.
Sealed the 8th August 1871, and dated the 23rd February 1871.
PROVISIONAL SPECIFICATION left by the said George Haseltine at
the Office of the Commissioners of Patents, with his Petition, on
the 23rd February 1871.
I, GEORGE HASELTINE, of the "International Patent Office," South-
ampton Buildings, London, do hereby declare the nature of the said
Invention for "AN IMPROVED COMBINED KNIFE AND GLASS CUTTING INSTRUMENT,”
a communication, to be as follows :-
The object of this Invention is to produce a steel glass cutter in con-
nection with an ordinary pocket knife which will be simple, cheap, and
effective.

page_text: In the cutting of glass a diamond is usually employed, but as this
process necessitates a special instrument it is frequently impossible on
ordinary occasions for persons to avail themselves of its use.
Steel instruments for cutting glass have also been in use, but the same
objection as to special instruments applies to them.
This objection will be removed by my Invention, attached as it is in
a simple manner to a common instrument in general use like a pocket
knife.
The cutting steel is arranged in the form of a small circular disc or
wheel, with its outer sides bevelled to a sharp cutting edge. A slot is
provided in the metal end of the knife into which the steel wheel is
introduced, being held in placo and revolving on an axlo formed by a
small screw passing through the wheel into each side of the metal, and
thus so arranged that if the cutting edge of the wheel becomes impaired
it may easily be removed and repaired or a new one put in its place.
This cutting wheel is made of finely tempered steel. The knife may be.
of any of the ordinary forms in use. The glass to be cut is placed on a
firm level table or bearing, and a straight edge or other guide for the
line of cutting placed in the required position on the glass. The knife
is then taken in the right hand, and with the revolving steel wheel
resting on the glass and guided by the straight edge is drawn firmly
over the glass in the required direction, the sharp revolving edge of the
cutter in contact with the glass will operate like a diamond, and leave
the glass in such a condition that it can be casily broken in the line
traversed by the cutter.

page_text: WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-third day of February, in
the year of our Lord One thousand eight hundred and seventy-one, in the
thirty-fourth year of Her reign, did, for Herself, Her heirs and suc-
cessors, give and grant unto me, the said George Haseltine, Her special
licence that I, the said George Haseltine, my executors, administrators,
and assigns, or such others as I, the said George Haseltine, my
exccutors, 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 "AN IMPROVED
COMBINED KNIFE AND GLASS CUTTING INSTRUMENT," a communication to me
from abroad by Thelesphore Spénard, of Coaticooke, Jeweller, and C. H.
Letourneux, of Montreal, Merchant, both in the Province of Québec,
Canada, upon the condition (amongst others) that I, the said George
Haseltine, my executors or administrators, by an instrument in writing
under my, or their, or one of their hands and scals, 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 George Haseltine, 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 following statement, reference being had to the accompanying
Drawing forming a part of this Specification :-
The object of this Invention is to produce a steel glass cutter in con-
nection with an ordinary pocket knife, which will be simple, chcap, and
effective.
In the cutting of glass a diamond is usually employed, but as this
process necessitates a special instrument it is frequently impossible on
ordinary occasions for persons to avail themselves of its use.

page_text: This objection will be removed by my Invention attached as it is in
a simple manner to a common instrument in general use, like a pocket
knife.
The cutting steel is arranged in the form of a small circular disc or
wheel, with its outer sides bevelled to a sharp cutting edge. A slot is
provided in the metal end of the knife into which the steel wheel is
introduced, being held in place, and revolving on an axle formed by a
small screw passing through the wheel into each side of the metal, and
thus so arranged that if the cutting edge of the wheel becomes impaired
it may easily be removed and repaired or a new one put in its place.
mut di whool is made of finely tempered steel.

page_text: A pocket knife or other knife constructed with a revolving glass
cutter, substantially as described.
In witness whercof, I, the said George Haseltine, have hereunto
set my hand and seal, this Twenty-second day of August, in the
year of our Lord One thousand eight hundred and seventy-
one.
Witness,
E. C. JACKSON.
GEORGE HASELTINE. (L.S.)