AN IMPROVED MODE OF AND APPARATUS FOR COMBINING INFLAMMABLE GAS WITH AIR
Year: 1871

page_text: LETTERS PATENT to Colin Mather, of the firm of Messieurs Mather.
and Platt, of Salford, in the County of Lancaster, Engineer, for the
Invention of "AN IMPROVED MODE OF AND APPARATUS FOR COMBINING
INFLAMMABLE GAS WITH AIR."
Sealed the 16th May 1871, and dated the 16th March 1871.
PROVISIONAL SPECIFICATION left by the said Colin Mather at the
Office of the Commissioners of Patents, with his Petition, on the
16th March 1871.
I, COLIN MATHER, of the Firm of Messieurs Mather and Platt, of
Salford, in the County of Lancaster, Engineer, do hereby declare the
nature of the said Invention for "AN IMPROVED MODE OF AND APPAratus
BAD COMBINING INFLAMMADIO GIC WIMU ATD " to be as follows

page_text: that the gas and air should be united in certain definite proportions_to
obtain the most beneficial result, but in drawing gas from the ordinary
town's main pipes such a result is found difficult, if not impracticable,
owing to the variations in the pressure on the gas; now my Invention
consists in the use of a fan, the casing of which is provided with an
opening for the supply of the gas, another opening for the supply of air,
and a discharge pipe through which the combined gas and air is con-
veyed to the burners. It is evident that by varying the size of the
openings for the air and gas they can be combined in any desired
proportion.
SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said Colin Mather in the Great Seal Patent Office on
the 15th September 1871,
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, COLIN
MATHER, of the Firm of Messieurs Mather and Platt, of Salford, in
the County of Lancaster, Engineer, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Sixteenth day of March, 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 successors,
give and grant unto me, the said Colin Mather, Her special licence,
that I, the said Colin Mather, my executors, administrators, and assigns,
or such others as I, the said Colin Mather, 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 terin 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 MODE OF AND APPARATUS FOR
COMBINING INFLAMMABLE GAS WITH AIR," upon the condition (amongst
others) that I, the said Colin Mather, my executors or administrators,

page_text: .
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 inmediately after the date of the said
Letters Patent.
NOW KNOW YE, that I, the said Colin Mather, do hereby declare the
nature of my said Invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the
following statement (that is to say) :—
In combining gas with air for singeing fabrics, gassing yarns, soldering
metals, heating calender bowls, and for other purposes, it is essential
that the gas and air should be united in certain definite proportions to
obtain the most beneficial result, but in drawing gas from the ordinary
town's main pipes such a result is found difficult, if not impracticable
owing to the variations in the pressure on the gas; now my Invention
consists in the use of a fan, the casing of which is provided with an
opening for the supply of the gas, another opening for the supply of air,
and a discharge pipe through which the combined gas and air is con-
veyed to the burners. It is evident that by varying the size of the
openings for the air and gas they can be combined in
proportion.
any desired
In performing my Invention I employ by preference an ordinary
suction fan with central apertures at each side, the apertures at one side
5 I leave open for the admission of atmospheric air, and the apertures at
the other side are enclosed within a case to which the gas pipe is con-
nected so that when the fan revolves it draws in the air and gas in the
required proportions, and the air and gas when combined are discharged
through the usual opening to which the pipe leading to the burners is
) connected.
My Invention may be modified by using two fans, one for the gas and
other for the air, the discharge pipes of which are connected before the
combined gas and air is conveyed to the burners.
Having thus stated the nature of my Invention and described the
5 manner of performing the same, I declare that I claim, the improved

page_text: mode of and apparatus for combining inflammable gas with air as
described.
In witness whereof, I, the said Colin Mather, have hereto set my
hand and scal, this Thirteenth day of September One thousand
eight hundred and seventy-one!