Improved Apparatus for Regulating the Flow of Gases and Liquids.
Year: 1888

page_text: Date of Application, 12th Dec., 1888
Complete Specification Left, 12th Sept., 1889-Accepted, 9th Nov., 1889
PROVISIONAL SPECIFICATION.
Improved Apparatus for Regulating the Flow of Gases and Liquids.
I JOHN FOXALL of Trostey Street, Caerleon Road, Newport, Monmouthshire, Gas
Engineer do hereby declare the nature of this invention to be as follows :-
The chief object of the present invention is to provide a regulator or governor for
gas for domestic purposes, and consists principally in the application thereto of an
adjustable weighted lever, by means of which the admission of gas to the house pipos
may be readily controlled according to requirement.
According to my invention, the gas is passed through a receptacle provided as
usual with a cover capable of receding and advancing according to the pressure of the
gas within the receptacle. The cover is in connection with the admission valve, so
that the movements of the said cover are communicated to the valve, and its capacity
thereby enlarged or contracted according to circumstances. The adjustably weighted
lever is pivotted near the summit of the receptacle upon the cover of which it bears.
Upon this lever the weight slides, and by its position upon the lever, and its distance
from the pivot, the weight upon the receptacle is regulated. Thus, if the supply of
gas is in excess of the requirements, the weight is moved along the lever until the
leverage is reduced sufficiently to permit of the further contraction of the capacity of
the admission valve; should more gas be required, the opposite course is adopted.
The admission valve may be an ordinary drop valve, or may consist of an inverted
bell with a contracted mouth surrounding a hollow inverted pyramid, up which passes
the incoming gas into the bell. The bell being pendent from the outer case of the
receptacle, the receding of the latter causes the lip of the bell to near the circumference
of the pyramid as its greatest diameter is approached, and thus contract the passage
between the bell and the outer receptacle.
Dated thin 15th day of Ion 1880
NEWTON & SON,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improved Apparatus for Regulating the Flow of Gases and Liquids.
I JOHN FOXALL of Trostey Street Caerleon Road, Newport Monmouthshire, 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 :-
This invention relates principally to the improvement of regulating apparatus for
gas for domestic purposes but the improvement is applicable also to apparatus for con-
trolling the flow of other fluids.
The object of the invention is to make the regulator adjustable so as to provide for
the regulation of varying pressures of gas or other fluid to suit varying circumstances
and also to prevent vibration in the regulating valve.
According to my invention I apply to the movable diaphragm or dome which is in
connection with the controlling valve of a gas or similar regulator, a weighted lever.
This lever is so mounted and weighted that it shall bear upon the movable diaphragm
or dome and steady its action the weight being capable of a sliding movement along
the lever so as to increase or decrease its efficiency as required.
In the accompanying drawing I have illustrated my invention as applied to gas
regulators, two forins of which are shewn.
Fig. 1 is a vertical section and Fig. 2 is a plan view of one form of regulator and
Fig. 3 is a vertical section of another form.

page_text: Referring to Figs. 1 and 2. A is a sheet metal casing containing the regulator
and A¹ is an easily removable covering secured by thumb screws a a. B is the
inlet for the gas and B¹ the outlet. C is a flexible diaphragm of prepared leather
or similar material upon the upper side of which bears the weighted lever D
pivotted on the rod d. extending transversely across the casing. D₁ is the weight
sliding longitudinally of the lever D by means of which the acting weight of the
said lever may be. more or less augmented or diminished. E is a partition
extending between the inlet and outlet pipes and provided with a central aperture e
which forms with the plate c carried by the pendent rod c¹ attached to the flexible
diaphragm C, a valve through which all the fluid that enters the regulator has to
pass. is a perforated chamber which receives the gas as it enters and serves to
distribute it evenly before coming to the valve. The plate c is preferably screwed
onto the pendent rod ¹ which in its turn is screwed into plates placed centrally
of the flexible diaphragm through which it passes.
The lever D may be of any suitable form but in the accompanying drawing I
have shewn it as consisting of a pair of rocker shaped plates braced together at
their ends and carrying other plates which form guides for the stem with which
the sliding weight D₁ is provided. The weight has upon it a pointer and the
lever has on it a number plate to indicate the position it is desired the weight
should assume.
In the position shewn in the drawing the weight is exercising its influence
against the weight of the lever but on pushing it to the right the weight of the
lever acting on the diaphragm is augmented by the additional weight D¹ and by
the increasing leverage as the weight D¹ is moved further and further to the right.
The weight is maintained in the position in which it has been set by screwing it
down and clamping the guide between it and its back plate.
It will be seen that the flow of gas entering at B and passing the valve
formed by the plate cand aperture e is controlled by the pressure of the
said gas acting on the diaphragm C which closes and opens the said valve as
the diaphragm is raised or lowered by the gas pressure, and, that the movement
of the diaphragm and consequently of the valve is regulated to suit the require-
ments of supply by the position of the weight D¹ upon its lever.
In Fig. 3 of the drawing the casing is composed of two parts A and A* and the
regulating valve is formed between the inlet pipe B which has the shape of an
inverted cone and a bell c formed with contracted mouth, and pendent from the
rod c¹, the cylindrical vessel C from which the rod c¹ depends takes the place of
the leather diaphragm, embracing the upper part of the lower casing A*. In the
trough X formed between the two parts of the casing there is a mercury or other
seal or lute, arranged in a manner that is well understood. The lever D pivotted
as before, rests upon the vessel (and steadies and regulates its movement, and
with it the admission valve, under the influence of pressure from below.
removable cover is provided as before to allow of access to the adjustable weight.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is.
A
The application to apparatus for regulating the flow of gas and the like of a
weighted lever in the manner described and for the purpose set forth.
NEWTON & SON,
Agents for the Applicant.