IMPROVEMENTS IN APPARATUS FOR CONSUMING GAS FOR THE PURPOSE OF LIGHT
Year: 1840

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, JOHN
INKSON, of Ryder Street, Saint James', in the County of Middlesex, Gentleman,
send greeting.
WHEREAS Her present most Excellent Majesty Queen Victoria, by Her
Letters Patent under the Great Seal of Great Britain, bearing date at West-
minster, the Thirtieth day of April, in the third year of Her reign, did, for
Herself, Her heirs and successors, give and grant unto me, the said John
Inkson, Her especial licence, full power, sole privilege and authority, that I,
the said John Inkson, my exors, admors, and assigns, or such others as I, the
said John Inkson, my exors, adiňors, or assigns, should at any time agree
with, and no others, from time to time and at all times during the term of
years therein expressed, should and lawfully might make, use, exercise, and
vend, within England, Wales, and the Town of Berwick-upon-Tweed, the
Invention of "IMPROVEMENTS IN APPARATUS FOR CONSUMING GAS FOR THE PURPOSE
OF LIGHT;" communicated to me by a certain foreigner residing abroad, in
which said Letters Patent is contained a proviso that I, the said John Inkson,
shall cause a particular description of the nature of the said Invention, and in
what manner the same is to be performed, to be inrolled in Her said Majesty's
High Court of Chancery within six calendar months next and immediately
after the date of the said in part recited Letters Patent, as in and by the
same, reference being thereunto had, will more fully and at large appear.

page_text: NOW KNOW YE, that in compliance with the said proviso, I, the said
John Inkson, do hereby declare the nature of the said Invention, and the
manner in which the same is to be performed, are fully described and ascer-
tained in and by the following statement thereof, reference being had to the
Drawing hereunto annexed, and to the figures and letters marked thereon
(that is to say):
The Invention relates to a mode of regulating gas which is permitted to pass
to gas burners, and in such manner that the size or quantity of flame of each
burner may be adjusted with great nicety, notwithstanding that several burners
are open to the same supply pipe; and the closing or shutting off several burners
will not cause a prejudicial rush or pressure of gas through the other burners,
but each burner left lighted will continue to produce a flame according to that
to which it has been regulated, and thus will the adjustment of the cock of a
burner from time to time by hand be rendered unnecessary.
DESCRIPTION OF THE DRAWING.
Figure 1 represents the section of a gas cock having the Invention applied
thereto; Figure 2 shews a section of the gas cock without the apparatus.
Figure 3 is the apparatus shewn separately; in each of these Figures a is the
gas cock, b is a coupling screw. The apparatus applied to regulate the
supply of gas to the burner consists of a cylinder c, having one end closed,
through which a hollow screw d is passed. The cylinder c fits into a recess
formed in the cock a, in such manner that the opening through the
screw forms a continuation of the passage for gas from the supply pipe to the
cock. In the cylinder c is hung a valve e, which rests against the hollow
screw d, and according as the valve is more or less close against the opening
through that hollow screw d, the less or larger quantity of gas will be permitted
to pass through to the burner; and as the screw d is capable of movement
through the end of the cylinder c, the position in which the valve shall rest
against the hollow screw can be regulated with great nicety, and may be varied
from time to time whenever a different sized flame may be required, but
having been once regulated the burner will continue to burn the same sized
flame. Figure 4 shews another arrangement for carrying out the Invention.
A is the brass plate communicating with the valve B, by the wire C. D, E,
are two small supports for the purpose of maintaining the plate and valve in the
proper position. F is a spring acting upon the plate, and keeping the valve
B constantly open; the gas entering in the direction of the arrow presses upon
the plate A, and causes the valve to close; now, if the pressure diminish, the
spring F will overcome the power of the gas and re-open the valve B.