Improvements in Gas Controllers.
Year: 1891

page_text: Date of Application, 10th Feb., 1891
Complete Specification Left, 11th Sept., 1891-Accepted, 21st Nov., 1891
PROVISIONAL SPECIFICATION.
Improvements in Gas Controllers.
ERNEST BROWNHILL "Holmlea" Fairfax Road Hornsey, N. Gas Engineer do
hereby declare the nature of this invention to be as follows:-
The object of my invention is to effect certain improvements in controllers,
which regulate the supply of gas by a float sealed in mercury or other liquid.
By means of these improvements I obtain greater steadiness in the action of the
float & also a double way for the inlet of gas to the valve, combined with greater
simplicity of construction.
The method by which I accomplish these results is as follows:-
I make a box of brass or other metal having a hole at the top & another at the
bottom, for the reception of an equilibrium valve.
In the bottom of this box I also make two openings for the inlet of gas to valve,
which openings are extended by means of two sector shaped tubes.
At the end of these tubes I fix a plate, drilled to act as a guide for the valve
spindle & with a projection which fits into a hole drilled in the "inner chamber"
hereafter referred to.
At the top of the valve box I fix a bridge, with a hole drilled in centre, which
acts as a further guide for valve spindle.
Thus I secure steadiness of action.
I construct an outer casing preferably of cast iron, with an "inner chamber" for
the inlet of gas from the main, & I make the chamber project past the centre of
casing, so that I may obtain a central position for the valve box.
Thus I secure simplicity of construction, with accurate working.
ليمي
.
1
1001
ERNEST BROWNHILL.
COMPLETE SPECIFICATION.
Improvements in Gas Controllers.
ERNEST BROWNHILL of "Holmlea" Fairfax Road Hornsey, N. in the County
of Middlesex 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:-
The object of this invention is to effect improvements in gas controllers which
are actuated by an inverted cup sealed in mercury or other liquid.
By means of these improvements I obtain great steadiness in the action of the
float & also a double way for the inlet of gas to the valves, combined with greater
simplicity of construction.
For the purpose of my invention I construct an outer casing preferably of
cast iron with an inner chamber projecting past the centre of casing, so that I
obtain a central platform on which to secure my valve box hereinafter mentioned.
I also construct a box of brass or other metal, which I call a valve box, having
a fixed seating at the bottom & a loose seating at the top of same, for the insertion
of an equilibrium valve.

page_text: In the bottom of this box I make two openings for the inlet of gas to the valve
which openings are extended by two "sector" shaped tubes.
At the end of these tubes, I fix a plate drilled to act as a guide for the valve
spindle, with a projection which fits into a hole bored in the platform before
mentioned, centre of said hole coinciding with centre of outer casing, the said
projection & said hole being turned to a guage, this effecting speed & simplicity
in construction.
My invention will be more fully understood by the annexed drawings.
Figure 1. is a sectional elevation of a gas controller constructed according to my
invention.
Figure 2. is a plan of the valve box taken across Fig. 1. at points X. X. shewing
the double inlet 1 I for uncontrolled gas & aperture M for guide plate K.
Figure 3. is a plan of the hole in platform of inner chamber, in which the guide
plate K is fitted, taken across Fig. 1 at points S. S.
Referring to said drawings, A is the outer casing or body of the controller,
preferably made of cast iron, B is the trough containing mercury or other liquid,
C the spindle upon which is fixed the float D & equilibrium valve E. E. F is the
weight carrying spindle, to carry regulating weights if required. G brass cap
for protecting weight spindle. H. H. is the improved valve box with double
inlet I. I.
K is the guide plate which fits into hole bored in platform L.
M aperture for guide plate K.
NN inlets for uncontrolled gas from main.
O outlet for controlled gas.
P hole bored in platform for guide plate K.
Corresponding parts are indicated by the same letters in the different figures.
It will readily be seen that the gas in its passage to the valve is not throttled,
the said passage being greater than the capacity of the main pipe, so that when the
pressure of gas falls below that at which the controller is set, the flow will not in
any way be impeded in its passage to the burners &c.
It will also be seen that the guide plate K & the said opening P being both
turned to one guage (centre of said opening P coinciding with centre of outer casing)
will ensure the valve box being fitted in a central position without any difficulty &
in as simple a manner as possible. I make no claim to the trough B above
referred to.
Having now particularly described & ascertained the nature of my said inven-
tion & in what manner the same is to be performed, I declare that what I
claim is,
First. The improved valve box, with the double way for supply of uncontrolled
gas, fitted with guide plate, as herein described, by means of which I obtain great
steadiness.
Secondly. The peculiar construction of the platform in combination with the
opening as described, by which I obtain a central position for the valve box with
the least possible amount of labor & with the utmost simplicity.
Dated this 10th day of September 1891.
ERNEST BROWNHILL.