Improvements in Governors for Gas Burners.
Year: 1894

page_text: Date of Application, 25th Jan., 1894-Accepted. 3rd Mar., 1894
COMPLETE SPECIFICATION.
[Communicated from abroad by The Buffalo GAS SAVING COMPANY, of the
City of Buffalo, in the County of Erie and State of New York, United
States of America.]
Improvements in Governors for Gas Burners.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent
Agents, 45 Southampton Buildings, in the County of Middlesex, do hereby
declare the nature of this invention, and in what manner the same is to be
performed to be particularly described and ascertained, in and by the following
statement:-
This invention relates to the governors or regulating devices which are employed
in connection with gas burners for automatically regulating the supply of gas
thereto, and more especially to governors of this kind which are adjustable, so
that the supply of gas may be increased or diminished.
:
My invention has for its object to construct a compact governor of simple
construction, in which the gas is permitted to pass freely to the burner at a very
low as well as at a high pressure, thus always insuring a sufficient supply
of gas.
In the accompanying drawing,
Figure is a sectional elevation of the improved gas governor drawn to an
enlarged scale showing the valve in a raised position.
Figure 2 is a similar view showing the valve in its lowest position.
Figure 3 is a horizontal section of the governor on the line 2-2, Figure 1,
looking downward, and
Figure 4 is a similar section on the line 2-2, Figure 1, looking upward.
Like letters of reference refer to like parts in the several figures.
.
:
A represents the cylindrical shell or casing of the governor, provided in its
lowest portion with an internal screw thread a for attaching it to a gas pipe, and
at its upper end with an externally screw threaded stem a' for the attachment of
the burner B.
C is the governor float or disc arranged within the casing and fitted sufficiently
loose in the same to permit it'to rise and fall freely in the casing in response to the
fluctuations of the gas pressure.
D is a horizontal diaphragm arranged in the casing below the float and having
a number of gas passages d. The float is provided on its underside with a
central guide stem e which slides in an opening e' formed centrally in the
diaphragm D.
valve seat.
fis an abrupt annular shoulder or offset arranged above the float, at the junction
of the body of the casing with its contracted hollow screw stem a', and forming a
The float Cis provided opposite the shoulder or valve seat f with a
number of gas ports g which are adapted to be restricted by said valve seat, so as
to reduce their area and diminish the supply of gas to the burner. The gas ports
of the float are so arranged with reference to the shoulder f, that when the float
is in contact with the latter, the gas ports are only partly closed, so as to reduce
the supply of gas to the burner, but not entirely shut it off. The shoulder also
forms a stop which limits the upward movement of the float, thereby dispensing
with a head or other stop device on the guide stem of the float.
His a vertically adjustable sleeve arranged in the tubular stem a¹ of the
casing and provided with an external screw thread which engages with the internal
thread of an opening i formed in the closed upper end of said tubular stem. This

page_text: adjustable sleeve is open at both ends and is provided in its sides, near its lower
end, with gas ports whereby the interior of the sleeve communicates with the
surrounding portion of the casing.
k is an upright cylindrical stem or valve projecting upward from the float and
entering the lower portion of the sleeve. The bore of the latter is somewhat
larger than the valve so as to leave a narrow annular passage between the valve
and the sleeve. The sleeve is provided at its upper end with a milled head / for
turning it, so as to raise or lower it with reference to the valve. l is a raised
marginal flange or rim formed on the upper side of the diaphragm, whereby the
float when in its lowermost position, is held out of contact with the diaphragm and
prevented from adhering to the same from any cause and interfering with the
operation of the governor. This flange also forms with the upper side of the
diaphragm a shallow chamber or space which allows the gas to pass from
the portion of the casing below the diaphragm into the adjusting sleeve when the
pressure is so low as to permit the float to rest upon the flange of the diaphragm.
When the gas is turned off, the governor float rests loosely upon the marginal
flange of the diaphragm. Upon turning on the gas, the float is lifted to a greater
or less extent according to the pressure of the gas, causing the ports g, of the
float, to approach the shoulder or valve seat f and restricting the passage of the
gas through the ports correspondingly, thus governing the supply to the burner.
The fluctuations of the float cause the valve & to project into the adjustable
sleeve H a greater or less distance according to the gas pressure, thus allowing a
corresponding quantity of gas to enter the sleeve through its side ports j and pass
to the burner.
When the gas pressure rises, the float is lifted higher, causing the valve to
project further into the sleeve and reducing the supply to the burner, while when
the pressure diminishes, the float descends, causing the valve to recede and
permitting an increased supply. In order to increase the supply, the sleeve is
turned in the proper direction to raise it with reference to the valve, and when it
is desired to reduce the supply the sleeve is lowered. The governor can thus be
adjusted with great nicety to supply any desired number of cubic feet of gas per
hour. As the ports in the diaphragm are never entirely closed, neither in the
lowest nor in the highest position of the float, a supply of gas to the burner is
always maintained, even when the gas pressure is very low.
By effecting the adjustment of the governor from a point above the float and
also locating the stop shoulder fabove the float the upward movement of the float
is limited without the necessity of riveting or heading the lower end of its guide
stem and the disturbance of the adjustment liable to occur from the blows of the
rivetting machine, is obviated.
When the governor is used in connection with artificial gas, the adjusting sleeve
is preferably provided with the lateral gas ports, but when the same is used in
connection with natural gas, they may be omitted. In the latter case the supply
of gas is regulated partly at the open lower end of the sleeve by the approach and
recession of the float and partly by the valve seat and the ports in the float.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondent, I declare that what I claim is :-
1. In a governor for gas burners, the combination with the casing, of a diaphragm
arranged in the casing and having gas passages, a governor float arranged above
said diaphragm and having a gas port, a shoulder arranged above said float,
opposite said gas port and forming a valve seat, a stem depending from the under-
side of said float and guided in an opening in said diaphragm, a vertically
adjustable sleeve arranged above the float and a valve or stem projecting upward
from the float and entering said sleeve substantially as set forth.
2. In a governor for gas burners, the combination with the casing, closed at its
upper end by a head having a screw threaded opening, of a diaphragm arranged in

page_text: the casing and having gas passages, a governor float arranged above said diaphragm
and having a gas port, a shoulder arranged above said float opposite said gas port
and forming a valve seat for said port a guide stem depending from the underside
of said float and guided in an opening in said diaphragm, a screw threaded open-
ended sleeve, arranged in the threaded opening in the top of the casing and baving
a lateral gas port, and a valve or stem projecting upward from the float and
arranged in said sleeve, substantially as set forth.
3. In a governor for gas burners, the combination with the casing, of a
diaphragm arranged in the casing and having gas passages, a governor float fitting
loosely in said casing above said diaphragm, a vertically adjustable sleeve open at
its ends, and arranged above the float, and a valve or stem projecting upward from
the float and entering said sleeve, substantially as set forth.
4. In a governor for gas burners, the combination with the casing, of a diaphragm
arranged in the casing and having gas passages, a governor float arranged above
said diaphragm and having a gas port, a shoulder arranged above said float
opposite said gas port and forming a valve seat for said port, and a guide stem
depending from the underside of said float and guided in an opening in said
diaphragin, substantially as set forth.
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1004
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicant.