Improvements in Gas Governors or Regulators.
Year: 1890

page_text: Date of Application, 12 h July, 1890-Accepted, 23rd Aug., 1890
COMPLETE SPECIFICATION.
Improvements in Gas Governors or Regulators.
I JAMES KIDD BROWN of 27 Holyrood Quadrant Glasgow in the County of
Lanark North Britain Gas 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 which relates to Improvements in Gas Governors or Regulators has
especial reference to the arrangement and construction of the valve, and consists in
the employment of a hollow cylinder, or the segment of a cylinder or tube in which
are cut through the thickness of metal at the top, and three radial slots of a sufficient
depth down the tube relative to the different pressures the governor or regulator is
intended to be worked. The range of motion being regulated by the pressure of the
gas; the maximum pressure determining its highest position, and the minimum
pressure its lowest position. The said valve by virtue of its construction is free to
slide up and down through a corresponding opening or openings formed in the
bridge or bridges of the governor or regulator. As for instance any undue sudden
pressure of gas passing into the governor or regulator, acting upon the diaphragm or
bell shaped float, to which is attached the valve spindle, would raise the tube so that
the slots would be at a sufficient height above the bridge to cut off or practically so,
the undue supply of gas from passing from the inflow pipe into the inner chamber or
body of the governor or regulator. As the pressure became reduced the diaphragm
or bell shaped float would be acted upon inversely and the valve consequently would
drop into a normal position. Therefore, by the sensitiveness of its construction a
uniform pressure of gas would be constantly maintained.
The valve and spindle are formed in two pieces. The latter being connected to the
former by tangent screws, the ends of which enter an annular recess or groove cut
in the bottom end of the valve rod.
This arrangement allows of the valve being adjusted when required and so prevent
jamining. In order that my invention may be the better understood and readily
carried into effect I have hereunto appended an explanatory sheet of drawing.
A. represents the valve a. a. a. the three radial slots of which two only are seen in
the drawing, is the valve rod or spindle c. c¹ are jam nuts securing the valve rod
or spindle b, to the diaphragm or bell shaped float B. C. Care weights when
required for adjusting the position of the valve A. to any desired pressure D
and D are the upper and lower bridge cast in one piece with the regulator in
E is the
which the valve A works through the circular openings or holes d. d.
mercurial cup and e, the aperture formed at the apex for giving a passage to the
gas to act upon the diaphragm or bell shaped float B. The outer rim of the said
cup E is provided with a flange which fits into a corresponding recess formed in
the lower flange of the governor or regulator as shewn in the drawing. F. F. are the
inflowing passages of which two are shewn and are intended for convenience in
fixing the governor or regulator to the gas meter or other suitable place of gas
supply. Gis the outflowing passage H is the cap at the top of the governor or
regulator. . i represent the tangent screws working in the annular groove or
recess j formed in the rear end of the valve rod or spindle b, described as
aforesaid.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what I
claim is :-
1st. In gas governors or regulators the employment of a hollow cylinderical valve
having three, or a less, or a greater number of radial, semicircular oblong, eliptical

page_text: or square shaped slots cut upon it near to, or at the upper end of the valve, working
in a corresponding shaped opening or openings, actuated by the pressure of gas
acting upon a
diaphragm or float substantially as and for the purposes herein before
described and shewn on the drawing.
2nd. In combination with the said valve the device for attaching the valve spindle to
the valve by the employment of three or a more or less number of tangent screws
or studs, passing through the top of the valve and entering an annular groove or
recess formed at the lower end of the valve spindle operating substantially as and for
the purposes hereinbefore described and shewn on the drawing.
3rd. In gas governors or regulators the special construction whereby the working
parts are easily removable from the top without interfering with the body of the
governor or regulator when fixed to the meter or otherwise substantially as and for
the purposes herein before described and shewn on the drawing.
JAMES KIDD BROWN,
27, Holyrood Quadrant, Glasgow, Applicant.