Improvements in Gas Regulators.
Year: 1897

page_text: I, JOHN FREDERICK SIMMANCE, of 81, Page Street, Westminster, in the County
of London, Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to regulators for controlling the supply of gas to burners,
rendering it regular, notwithstanding variation of pressure.
For this purpose in the passage to the burner I form a cylindrical chamber having
its inlet below and its outlet above, and around the outlet I form an annular
recess. Within the chamber there is placed a light disc free to ascend and descend,
this disc having through it a small hole or several of these, but not in line with
the outlet hole, which is surrounded by a downwardly projecting conical lip forming
the inner periphery of the annular recess above mentioned. Should the pressure
of the gas increase the disc is raised so as to approach more or less closely to the lip
of the outlet, thereby more or less throttling the passage to the burner. The holes
through the disc may be adjusted by enlarging them or lessening them by burring
them in, or covering them more or less by a shutter. According to a modification
instead of making holes through the disc, I provide a by-pass passage outside
the cylindrical chamber, and I regulate the passage by a screw plug.
1007
ABEL & IMRAY,
Agents for the Applicant.
Improvements in Gas Regulators.
I, JOHN FREDERICK SIMMANCE, of 81, Page Street, Westminster, in the County
of London, Engineer, 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:-
My invention relates to regulators for controlling the supply of gas to burners,
rendering it regular notwithstanding variations of pressure, as I shall describe
referring to the accompanying drawings. Fig. 1 is a vertical section of a gas
regulator according to my invention. Fig. 2 shews a modification.
These figures are drawn to a scale very much enlarged in order the better to
shew details.
As shewn in Fig. 1 the governor comprises a cup A with gas inlet B, and a

page_text: cover C with gas outlet D. The cover is made with a central nipple E projecting
downwards and a lip F all round projecting to the same level as E. Within the
cup free to move up or down is a disc G having through it several holes, but none
of them in line with the outlet D.
When the pressure of the gas supplied varies the disc G is more or less raised
towards the outlet, more or less throttling the passage for the gas to the burner, the
pressure of which is thus maintained constant or nearly so, notwithstanding vari-
ations of the service pressure.
As shewn in Fig. 2 the disc G is made without holes through it, and a by-pass H
is provided to the space above the disc, this being regulated by a screw plug K.
Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim is :-
1. In a gas regulator the combination of a cup containing a perforated disc and
a cover having a downwardly projecting central nipple and circumferential lip,
substantially as described.
2. In a gas regulator the combination of a cup containing a disc, a cover having a
downwardly projecting central nipple and circumferential lip, and at the side of
the cup a by-pass with an adjusting screw-plug, substantially as described.
Dated this 9th day of February 1898.
ABEL & IMRAY,
Agents for the Applicant.