IMPROVE- MENTS IN GAS REGULATORS
Year: 1867

page_text: LETTERS PATENT to Bristow Hunt, of No. 1, Serle Street, Lincoln's Inn,
in the County of Middlesex, Gentleman, for the Invention of "IMPROVE-
MENTS IN GAS REGULATORS."-A communication from abroad by Joseph
Summers Wood; John Jackson Carberry, John Baker, junior, and Oscar
Dunreath McClellan, all of Philadelphia, Pennsylvania, United States of
America.
Sealed the 23rd July 1867, and dated the 30th January 1867.
PROVISIONAL SPECIFICATION left by the said Bristow Hunt at the
Office of the Commissioners of Patents, with his Petition, on the
30th January 1867.
..
1, BRISTOW HUNT, of No. 1, Serle Street, Lincoln's Inn, in the County of
Middlesex, Gentleman, do hereby declare the nature of the said Invention for
"IMPROVEMENTS IN GAS REGULATORS," (a communication to me from abroad by
Joseph Summers Wood, John Jackson Carberry, John Baker, junior, and
Oscar Dunreath McClellan, all of Philadelphia, Pennsylvania, United States
of America,) to be as follows:-
This Invention relates to improvements in that class of gas regulators in
which the gas is admitted to an inverted vessel partly immersed in water and
furnished with a valve which increases or diminishes the opening for the

page_text: escape of the gas to the burners, and maintains the gas there at an uniform
pressure; and the improvements consist of a peculiarly simple arrangement of
pipes described hereafter for admitting the gas to and discharging it from the
receiver which is guided by the said pipes. Placed within a vessel of tinned
plate or other suitable material, closed above and below, is the receiver, which
is closed at the top but open at the bottom, two air-tight vessels being secured
to or forming part of the receiver for imparting to it the necessary buoyancy.
There are two pipes secured within the vessel (outside the receiver) and passing
through the top of the same, the lower ends of the pipes being secured to a
hollow base which rests on and is secured to the bottom of the vessel; to this
base are also secured the two other pipes inside the receiver, the interior of
the base being so partitioned that one portion forms a communication between
one of the outer and one of the inner pipes, the other portion forming a com-
munication between the two other pipes. Both of the pipes contained within
the receiver terminate a short distance above the water level in the same, one
pipe being open at the top, but the other pipe being covered by a cap in
which is a central opening for the reception of a conical valve, the latter being
so suspended to the top of the receiver that it can be readily adjusted therein.
Near the top as well as near the bottom of the receiver are two projections
made in the form of rings so as to embrace the outer pipes, the latter thus
serving as guides for the receiver, and the rings being such that the said
receiver can move up and down freely. Water is poured into the vessel until
it reaches the level which coincides with the lower edge of the outlet. The
gas from the meter passes down one of the outer pipes, up the corresponding
inner pipe, through the valve into the receiver, and passes thence down the
second inner pipe, and up the other outer pipe to the burners. The pressure in
the main being generally four inches the receiver is so weighted that when the
gas admitted to it exceeds half an inch pressure it will be elevated, carrying
with it the conical valve which gradually contracts the area of the opening in
the cap to such an extent as to restrict the flow of gas into the receiver to an
extent sufficient to reduce the pressure therein to the desired half inch of
water.
. It will thus be seen that the instrument so regulates the flow of gas to the
burners that there is always an uniform pressure there.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Bristow Hunt in the Great Seal Patent Office on the 30th
July 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, BRISTOW
IIUNT, of No. 1, Serle Street, Lincoln's Inn, in the County of Middlesex,
Gentleman, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Thirtieth day of January, in the year of our Lord
One thousand eight hundred and sixty-seven, in the thirtieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, tlie
said Bristow Hunt, Her special licence that I, the said Bristow Hunt, my
executors, administrators, and assigns, or such others as I, the said Bristow
Hunt,
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 GAS
REGULATORS," being a communication to me from abroad by Joseph Summers
Wood, John Jackson Carberry, John Baker, junior, and Oscar Dunreath
McClellan, all of Philadelphia, Pennsylvania, United States of America,
upon the condition (amongst others) that I, the said Bristow Hunt, 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 per-
formed, 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 Bristow Hunt, do hereby declare the
nature of the said Invention, and in what mauner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement in writing, and on reference to the accompanying Sheet of
Drawings, that is to say:-
This Invention relates to improvements in that class of gas regulators in
which the gas is admitted to an inverted vessel partly immersed in water and
furnished with a valve which increases or diminishes the opening for the
escape of the gas to the burners, and maintains the gas there at au uniform
pressure, and the improvements consist of a peculiarly simple arrangement of

page_text: pipes described hereafter for admitting the gas to and discharging it from the
receiver, which is guided by the said pipes.
Such being the nature and object of the said Invention for "Improvements
in Gas Regulators" I will now proceed to describe more in detail the manner
in which the same is to be or may be performed or carried into practical
effect; and in order that the same may be distinctly understood I have annexed
hereunto a Sheet of Drawings illustrative thereof, and have marked the same
with figures and letters of reference corresponding with those in the following
explanation thereof, that is to say :-
On reference to the accompanying Drawing, Figure 1 is a vertical section
of the improved gas regulator; Figure 2, a sectional plan on the line x, y,
Figure 1; Figure 3, a vertical section of the receiver C on the line 1, 2,
Figure 2; and Figure 4 a modification. Similar letters refer to similar parts.
throughout the several views.
A is a vessel of tinned plate or other suitable material closed above and
helow, and within this vessel is the receiver C closed at the top but open at
the bottom; two air-tight vessels D being secured to or forming part of the
receiver for imparting to it the necessary buoyancy; E and F are two pipes,
secured within the vessel A, and passing through the top of the same, the
lower ends of the pipes being secured to the hollow base G, which rests on
and is secured to the bottom of the vessel; to this base are also secured the
two pipes F2 and E2, the interior of the base being so partitioned at m' that one
portion forms a communication between the pipes E and E, the other portion
forming a communication between the pipes F and F³. Both of the pipes
E and F are contained within the receiver C, and terminate a short distance
above the water level in the same, the pipe F2 being open at the top, but
the pipe E being covered by a cap 9, in which is a central opening for the
reception of a conical valve h, the latter being so suspended to the top of the
receiver C that it can be readily adjusted therein by means of the nut k. Near
the top as well as near the bottom of the receiver are two projections m, m,
made in the form of rings, so as to embrace the pipes E and F; the latter
thus serving as guides' for the receiver, and the rings being such that the
said receiver can move up and down freely. Water is poured into the vessel A
until it reaches the level indicated by the blue line, which coincides with the
lower end of the outlet B. The gas from the meter passes down the pipe E
and up the pipe E² into the receiver C, and passes thence down the pipe F*
to the burners. The pressure in the main being generally four inches, the
receiver C is so weighted that when the gas admitted to it exceeds balf an
inch pressure it will be elevated, carrying with it the conical valve h, which
'

page_text: gradually contracts the area of the opening in the cap 9 so as to restrict the
flow of gas into the receiver to an extent sufficient to reduce the pressure
therein to the desired half inch of water. It will thus be seen that the instru-
ment so regulates the flow of gas to the burners that there is always an
uniform pressure there.
Although the Inventors prefer to secure the pipes to the hollow base G,
and to arrange them in the manner described, simple bent pipes, as illustrated
in Figure 4, may be used. It is not absolutely necessary that the projec-
tions m should embrace the pipes E and F, they may pass only in part round
the same, or pulleys may be so hung to the receiver, and so adapted to the
pipes that the latter will serve as efficient guides.
Having now described the nature and object of the said Invention for
Improvements in Gas Regulators," together with the manner in which the
same is to be or may be performed or carried into practical effect, I would
remark in conclusion that I claim as the Invention (communicated to me by
the above-named Joseph Summers Wood, John Jackson Carberry, John
Baker, junior, and Oscar Dunreath McClellan),-
Firstly, the arrangement of the pipes E, E, for admitting the gas to and
pipes F and F, for discharging it from the receiver C.
Secondly, using the pipes E and F, as guides for the receiver, substantially
in the manner described.
Thirdly, the combination of the vessel A, pipes E, E, F, F2, receiver C,
and valve h, the whole being arranged and operating substantially as
described.
In witness whereof, I, the said Bristow Hunt, have hereunto set my
hand and seal, this Twenty-ninth day July, in the year of our Lord
One thousand eight hundred and sixty-seven.