of Gas Regulators
Year: 1889

page_text: Date of Application, 14th Feb., 1889
Specification Accepted, 16th Mar., 1889
1, WILLIAM FREDERICK FLETCHER, of the firm of G. J. Parkinson & Co., of Penn
Street, Curzon Street, Birmingham, Warwickshire, Patentees and Manufacturers of
Gas Regulators, 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 consists of the improvements in gas pressure regulators or governor
herein described which are designed to govern or control the flow of gas through pipes
so as to pass only a certain definite amount of gas in a certain time and the objects of
this invention are to simplify the construction of the said regulators and to render
them more reliable and effective.
I will describe iny invention by referring to the accompanying drawings in which
the same letters of reference indicate corresponding parts in all the Figures.
One of my said improvements consists in regulating the pressure of the ascending
gas after it has passed through the valve; this I effect by means of a regulating screw
placed in the gas governor so as to open or close the passage leading from the
regulating valve. Another of my improvements consists in the peculiar construction
of the regulating valve, and in the arrangement of the passages and parts of the
governor for an ascending current. In the example illustrated by Figs. 1, 2 and 3,
Fig. 1 represents in sectional elevation and Fig. 2 in plan a gas governor for an
ascending current constructed according to this invention and Fig. 3 shews parts of
the same separately. In this example of my invention the base B of the governor has
an inlet b and is provided with a cylindrical chamber b' containing the float the
chamber has an upper cover d fitting thereon and surrounded by the outer casing A
at the top of which is the outlet a' from the governor. The float c has a tubular
spindle c which is guided by the base band by fitting in a hole e in the cover d. In
the cover d is a passage passing from the side of the cover through the hole e and
then opening out at the top. There is also a passage g in the cover d communicating
from the upper side to the chamber 6. In the valve spindle c' is a small side passage
or passages c³. is the regulating screw by which the pressure of the gas is regulated
[14]
C,

page_text: 1,1
after it has passed through the valve. This gas governor operates as follows:-The
ascending current enters at the hole band passes up through the hollow float spindle c
through the side passage c² into the hole fand then up through the outlet a¹ and also
through the passage foutside the cylinder through the holes 2 to the underside of
the float c. The pressure of the gas above the cover d is regulated by the regulating
screw h. and this regulated gas, or gas at a reduced pressure, passes through the hole,
to the top side of the float. When the pressure of the gas entering the governor at
the inlet and underneath the float c exceeds what the governor is arranged to pass
the float rises so that the hole c² is above the passage thus regulating the flow of gas
through the passage f. If the pressure of the gas at the inlet b and below the float c
falls the float e falls also and allows more gas to pass through the hole c² so as to
maintain the pressure. at the outlet. al. By arranging the regulating screw h to
regulate the pressure of the ascending current after it has passed through the valve,
the governor is found to be more sensitive than when a regulating scraw is employed
to regulate the pressure of the gas before passing through the valve.
Fig. 4 illustrates a modification of my invention in which the parts are arranged
similarly as above described and illustrated by Figs. 1, 2 and 3 except that instead of
the gas being cut off on the outside of the hole in the tubular float spindle the gas
is cut off on the inside thereof by employing a plug e on the cover d fitting in the
top of the hollow float spindle c¹ so that as the float rises or falls this plug will close
or open the opening c².
Fig. 5 illustrates an example of my invention as applied to a combined gas governor
and burner and Fig. 6 shews parts of the same separately. In this example the outer
casing A forms the cylinder containing the float and the gas impinges directly on the
underside of the float through the inlet b. The passage is formed by a disc i fixed
a certain distance up the outer casing A and the outer casing is also provided with the
hole e in which the upper end of the hollow float spindle c¹ works. Immediately
I above the float c is a small hole communicating with the upper side of the float.
The open lower end c of the tubular spindle c¹ is made of a certain area according to
the amount of gas which the burner is required to pass. When this combined burner
and regulator is in use the gas enters at the opening b and impinges directly upon the
float c and also passes into the tubular shank c' through its lower open end cand
through the hole c² into the passage fand so on out through the top of the burner.
The gas also passes from the tubular spindle c' through the hole c³ to the space above
the float c. When the gas below the float exceeds its normal pressure, the float is
forced upwardly so that the hole c² passes up into the opening e and regulates the
outlet as above described; when the gas below the float falls below its normal
pressure the float falls and allows more gas to pass through the hole to the
burner.
Another of my improvements is applicable to gas regulators or governors for
descending currents and is designed to prevent the gas rushing on to the float and
causing the flow to fluctuate. This I effect by providing a fixed disc or partition
above the float against which the gas impinges before it reaches the float a small hole
generally being provided in the disc for the gas to pass through on to the float. The
said dise or partition and the arrangement of the passages also prevent any accumula-
tion of dust or dirt upon the float. These improvements are illustrated by Figs. 7
to 14 both inclusive of which Fig. 7 represents in sectional elevation a gas pressure
regulator for a descending current; Fig. 8 is a sectional plan of the same and Fig. 9
shews parts of the same separately; Fig. 10 represents a governor in which the
passages are arranged similarly as shewn by Figs. 7, 8 and 9 but the regulation of
the gas is effected by the side opening c² in the float spindle instead of by cutting off
on a flat surface; Figs. 11 and 12 illustrate a similar governor with the regulating
screw arranged to regulate the current after passing through the valve, and Figs. 13
and 14 shew a modification of the same.
In the examples illustrated by Figs. 7, 8, 9 and 10 in which the pressure of the gas
is regulated by the regulating screw before passing through the regulating valve,
the
gas enters the upper opening a in the outer casing A and then passes through the

page_text: side opening into the recess above the fixed disc i and then up and along the
passage k down the passage k and finally issues at the outlet in the base B. By
the opening being at the side of the inlet a any dust or dirt falling down the supply
pipe would accumulate at the bottom of the recess a and would not be liable to choke
tho passage or if any dirt should pass down the passage, it would, by the disc i, be
prevented from falling on to the float c. The disc prevents any rush of gas on to
the float c. Unregulated gas passes by the passage from the inlet a to the underside
of the float c and gas at the regulated or reduced pressure passes to the top of the
float e through the opening in the disc i so that the float is caused to rise or fall
as usual in accordance with the pressure. In the example illustrated by Figs. 7, 8°
and 9 the gas is regulated by the flat top of the tubular spindle c¹ of the flont opening
or closing the hole k. By making the flat top of the float spindle to serve as a
regulating valve and to cut off against the flat surface at the end of the hole kit is
not influenced by expansion which is a defect in corresponding valves of other shapes.
In the example illustrated by Fig. 10 the lower end of the valve spindle c' is closed
and near the upper end is the side hola e forming the regulating valve as above
described. The example illustrated by Figs. 11 and 12 is similar to that herein before
described and illustrated by Figs. 7, 8 and 9 except that the regulating screw his
applied in the base B to regulate the current after it has passed through the regulating
valve and the passages and gl are dispensed with, the unregulated gas passing to the
lower side of the float by a side hole 61 out of the passage and the regulated
gas, or gas at a reduced pressure, passing up the tubular float spindle and through
the small hole in the side thereof to the top of the float. In the example
illustrated by Figs. 13 and 14 the top of the float spindle c is closed and by
preference made conical so as to cut off the gas by crossing the passage f. This
construction enables the passages ƒ and ¹ to be a continuous descent down to the
outlet and effectually prevents any accumulation of dust or dirt therein.
I apply my invention to a pressure regulator for a horizontal flow of gas as
illustrated by Figs. 15, 16 and 17, of which Fig. 15 represents the gas regulator
in sectional elevation, Fig. 16 is a sectional plan of the same and Fig. 17 shews
parts of the same separately. The outer casing Ahas an inlet a at one side and an
outlet a at the other side the float e being contained in a plug m by preference
screwed into the outer casing A from the top thereof. In the plug m is the outlet
hole the area of which is regulated by the regulating valve formed either with
the side hole as above described and illustrated or with a flat, conical, or other
shaped top part. The gas entering by the inlet a passes through the hole into
the space above the fixed disc and then past the regulating valve along the
passage to the outlet a¹. The unregulated gas gains access to the underside of
the float by the passage and small hole n and the regulated gas gains access to the
space above the float through the hole g' in the fixed disc i. The entering current is
regulated by turning the plug m through a slight angle so as to partly close or open
the inlet or instead of the plug m being arranged to turn round, the regulating
screw may be employed in the passage j.
Figs. 18 and 19 shew how my invention is applied to a governor for a descending
current when the governor is required to take the place of a bend or elbow. Fig. 18
shews the said governor in sectional elevation and Fig. 19 shews parts of the same
separately. In this example of my invention the outer casing A is furnished with an
inlet a at the top and an outlet a' at one side and the float c is arranged in a chamber
underneath the inlet a which is accessible by a loose cover o underneath. The gas
enters the governor by the top opening a and then passes down the passage i past, the
regulating screw into the recess f above the fixed disc i and then up and along the
passage k down to the outlet a'. . Unregulated gas passes down the passage from the
inlet a through the hole n to the underside of the float c and the regulated gas gains
access to the upper side of the float through the opening g' in the disc i so as to cause
the float to rise or fall as usual in accordance with the pressure.
Figs. 20, 21 and 22 illustrate how my invention is applied to a governor for an
ascending current when such governor is required to take the place of a bend or elbow.

page_text: '
The outer casing A has a side inlet a and a top outlet a¹ and the float and fixed disc i
are contained in a plug m somewhat similarly to the horizontal governor illustrated by
Figs. 15, 16 and 17. In this example the gas enters by the inlet a and passes along
the passage and up the tubular float spindle c¹ then out through the regulating
valve into the passage fand so on up to the outlet a'. The unregulated gas finds
access to the underside of the float by the hole n ard the regulated gas finds access to
the upper side of the float by the hole c³. The quantity of gas passing through the
and
regulator is regulated by the space between the flat top of the regulating screw
the underside of the cylindrical nose o¹; or instead of a regulating screw with a flat
top the regulating screw may be conical as shewn by Fig. 22 or of other form.
Another of my improvements consists in so constructing and arranging the parts of
the said gas pressure regulators that they can be used either for an ascending or a
descending flow. An example of this part of my invention is illustrated by Figs. 23
to 28 both inclusive, of which Fig. 23 represents the gas governor in sectional eleva-
tion; Fig. 24 in sectional plan Fig. 25 in sectional elevation on line of Fig. 23 of
the gas regulator shewing the parts in the positions which they occupy when used for
an ascending current; and Figs. 26, 27 and 28 represent similar views with the parts
in the positions which they occupy when used for a descending current. Above the
chamber in which the float e works I provide two circular plugs or reversing valves
marked respectively p² p² which can be turned axially around their centres. A passage 7
extends from the lower opening a to the valve p' and a similar passage 92 from the
lower opening a to the valve and there is a passage from the upper opening a¹ to
the valve p and a passage q from the upper opening to the valve p. From the hole
in which the plug pl works a passage s¹ extends down to the space and from the hole
in which the plug p² works a passages extends down to the central passage e which is
opened or closed by the regulating valve. A bye-pass t extends from the underside of
the float e to the side of the hole in which the valve p' works. In the valve p¹ there
are openings at about right angles to each other. When the governor is used for
an ascending current as illustrated by Figs. 23, 24 and 25 the gas enters at the
opening a passes up the passage ql into the plug p¹ down the passages to the space f
then past the regulating valve (which may be formed by the flat top of the valve
spindle c¹ or otherwise) into the passage e up the passages through the valve p² up
the passage and finally issues at the opening a. The passage q¹ can be more or
less opened or closed by turning the valve p' thus the valve p¹ serves as a regulating
screw. Regulated gas passes to the top of the float through the hole in the fixed
disc i and unregulated gas passes from the passage through the valve p¹ through the
bye-pass t to the underside of the float. When the governor is required to be used for
regulating a descending current the valve p¹ is turned through about a quarter of a
revolution and the valve p through half a revolution as shewn by Figs. 26, 27 and 28.
The gas now enters by the opening a¹ passes down the passage through the valve pl
along the passages to the space then up past the regulating valve into the passage e
along the passages through the valve p² along the passage q2 and finally issues at the
outlet a. The regulated gas passes to the upper side of the float through the hole g
in the fixed disc i as before and the unregulated gas passes from the passage q³ through
the valve pl along the bye-pass t to the underside of the float.
The drawings show what I consider to be the best way for carrying my invention
into effect but it is to be understood that my said invention is not limited to the precise
details illustrated.
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
1st. In gas pressure regulators or governors for ascending currents and in combina-
tion with the float and regulating valve thereof, the employment of means for
regulating the pressure of the gas after it has passed the said regulating valve, sub-
stantially as hereinbefore described and illustrated by the accompanying drawings.
2nd. In gas pressure regulators or governors, the float c having the tubular float

page_text: spindle c with a side opening or side openings e² near the top thereof, the said side
opening or openings being opened or closed as the float falls or rises substantially
as and for the purpose hereinbefore described and illustrated by the accompanying
drawings.
3rd. In gas pressure regulators or governors for descending currents the employ-
ment of a disc or partition i fixed immediately above the float to prevent the rush
of gas thereon substantially as hereinbefore set forth.
4th. A gas pressure regulator or governor for either a descending or an ascending
current constructed and arranged substantially as and for the purposes hereinbefore
described and illustrated by Figs. 23, 24, 25, 26, 27 and 28 of the accompanying
drawings.
5th. The combination and arrangement of parts forming the improved gas regulator
or governor for an ascending current constructed as herein before described and illus-
trated by Figs. 1, 2 and 3, and by Fig. 4, of the accompanying drawings.
6th. The combination and arrangement of parts forming the improved combined gas
regulator and burner for an ascending current constructed as hereinhefore described
and illustrated by Figs. 5 and 6 of the accompanying drawings.
7th. The combination and arrangement of parts forming the improved gas regulator
or governor for a descending current constructed as hereinbefore described and illus-
trated by Figs. 7, 8 and 9, and by Fig. 10, of the accompanying drawings.
8th. The combination and arrangement of parts forming the improved gas regulator
or governor for a descending current constructed as hereinbefore described and illus-
trated by Figs. 11 and 12 of the accompanying drawings.
9th. The combination and arrangement of parts formning the improved gas regulator
or governor for a descending current constructed as hereinbefore described and illus-
trated by Figs. 13 and 14 of the accompanying drawings.
10th. The combination and arrangement of parts forming the improved gas regulator
or governor for a horizontal current constructed and arranged to operate as lierein-
before described and illustrated by Figs. 15, 16 and 17 of the accompanying
drawings.
11th. The combination and arrangement of parts forming the improved gas regulator
or governor for a descending current constructed to take the place of a bend or
elbow, as herein before described and illustrated by Figs. 18 and 19 of the accompanying
drawings.
12th. The combination and arrangement of parts forming the improved gas regulator
or governor for an ascending current constructed to take the place of a bend or elbow,
as herein before described and illustrated by Figs. 20, 21 and 22 of the accompanying
drawings.
TL 19
C
1000
CHARLES BOSWORTH KETLEY,
Agent for the Applicant.