IMPROVEMENTS IN THE MANU- FACTURE OF GAS AND IN THE APPARATUS EMPLOYED THEREIN
Year: 1854

page_text: LETTERS PATENT to Thomas Kaye, of Huddersfield, in the County of
York, Ironmonger, for the Invention of "IMPROVEMENTS IN THE MANU-
FACTURE OF GAS AND IN THE APPARATUS EMPLOYED THEREIN
PROVISIONAL SPECIFICATION left by the said Thomas Kaye at the
Office of the Commissioners of Patents, with his Petition, on the 15th
March 1854.
I, THOMAS KAYE, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN THE MANUFACTURE OF GAS AND IN THE APPARATUS EMPLOYED
THEREIN " to be as follows:-
Firstly, I propose to have a flue or flues through the centre of the
retort.
Secondly, to have the side flues curved, whereby I obtain a greater heating
surface, and consequently generate a greater quantity of gas from the same
amount of fuel, than can be done by the present system.
Thirdly, to have a vessel over the mouth-piece supplied with a continual
stream of cold water to prevent the accumulation of tar in the escape,
pipe.
And, fourthly, to have a bonnet and flue to take off the unpleasant effluvia,
whilst charging the retorts.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Thomas Kaye in the Great Seal Patent Office on the 14th
September 1854.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, THOMAS
KAYE, of Huddersfield, in the County of York, Ironmonger, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Royal
Letters Patent, bearing date the Fifteenth day of March, in the year of our Lord
One thousand eight hundred and fifty-four, in the seventeenth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Thomas Kaye, Her special licence that I, the said Thomas Kaye, my
executors, administrators, and assigns, or such others as I, the said Thomas
Kaye, 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
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 "IMPROVEMENTS IN THE MANU-
FACTURE OF GAS AND IN THE APPARATUS EMPLOYED THEREIN," upon the condition
(amongst others) that I, the said Thomas Kaye, by an instrument in writing
under my hand and seal, 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 Royal Letters Patent.
NOW KNOW YE, that I, the said Thomas Kaye, 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
(that is to say)—
My Invention relates, firstly, to making gas retorts with a flue or flues
through their centres, partially closed on the top for the concentration of the
heat, which afterwards circulates through openings to the upper flue and
chimney, by which plan I gain a much greater heating surface than is obtained
by the retorts now in use.
Secondly, to making the side flues thereof curved, so as to give a greater
heating surface, and consequently to generate a greater quantity of gas from
the same amount of fuel than can be done by the present system.
Thirdly, to fixing a vessel over the mouth-piece supplied with a continual
stream of cold water, to prevent the accumulation of tar in the escape-
pipe.
And, fourthly, to placing a bonnet at the upper part of the front of the retort,

page_text: connected with a flue leading to the chimney, to take off the unpleasant effluvia
when the retorts are being charged.
These improvements will be clearly understood by reference to the accom-
panying Sheet of Drawings, in which the same letters of reference are used to
represent the same parts in all the Figures. Fig. 1 is a plan, shewing the top
of the retort with the openings leading to the flue; Fig. 2 is a horizontal section
of a retort, shewing the interior with the flue; Fig. 3, a front elevation,
shewing the mouth-piece and cooling vessel; Fig. 4, a section at the lines
A, B; Fig. 5, a back elevation; Fig. 6, a section at the lines C, D; Fig. 7, a
section at the lines A, B, shewing the fire-flue, brickwork, and casing; Fig. 8,
a section at the lines C, D, shewing the action of the fire on the retort through.
the medium of the centre flue. a represents the retort; b, the centre flue
through it; c, the openings; c', fire-brick damper for regulating the flues;
d, the fire-place; e, the side curved flues; f, the chimney; g, the vessel
supplied with water to prevent the accumulation of tar; h, the bonnet; i, the
flue leading from it to the chimney; and k, a damper for closing the effluvia
flue after the retort is charged.
Having thus fully described the nature and particulars of the said Invention,
I desire it to be distinctly understood that I do not confine myself to the exact
details herein set forth, as such may be varied or modified without departing
from the principle thereof; but I claim the form and shape of the retort with
a flue or flues through its centre, the side flues curved, a vessel over the
mouth-piece, and a bonnet at the upper part thereof, as herein described, and
illustrated in the accompanying Sheet of Drawings.
In witness whereof, I, the said Thomas Kaye, have hereunto set my
hand and seal, this Eleventh day of September, One thousand eight
hundred and fifty-four
Signed, sealed, and delivered by the within-
named Thomas Kaye in the presence of
WM TASKER,
Patent Agent,
THOMAS KAYE. (L.S.)
•Halifax.