Year: 1898

page_text: We, JOHN HAWKYARD, Foreman, of The Hollies, Upper Mill, Saddleworth, in
the County of York, and JOSEPH BRADDOCK, Gas Engineer, of 72, Windsor Road,
Oldham, in the County of Lancaster, do hereby declare the nature of this inven-
tion to be as follows:-
This invention relates to gas regulators used for governing the pressure in a
supply main, and the objects of the invention are to combine compactness of
construction and adaptability to varying conditions of position and available
space, with the greatest accuracy in action, and also to compel the valves to move
or travel a considerable distance, to supply a small quantity of gas in proportion
to their motion when supplying larger quantities thereof.
The regulator consists as usual of a gas chamber in which a second similar
chamber is cast or fitted.
The inner chamber is provided with two valve seatings, loose or otherwise,
one above the other and two valves on one spindle on the well known principle
of the equilibrium valve, both valves opening and closing simultaneously.
The side or sides of the apparatus is or are preferably removable and common
to both chambers so that the valves and seatings are easy of access.
If of cylindrical form (which we prefer) these valves are each closed at one end
and open at the other, and in the periphery of the cylinder we form slots length-
wise, that is to say in the direction of the axial line thereof. Each slot is
preferably made in the form of an isosceles triangle (or similar form) with its
apex or pointed end towards the closed end of the valve. We may make any
suitable number of these slots in the cylinder commencing at or about the same
distance from the open end but one extending nearly to the closed end, the others
being shorter say by about three or four inches, according to the size of the
governor, so that they will not open to allow gas to pass so soon as the longer slot.
By this construction the valves and spindle must travel a considerable distance
to supply a small quantity of gas and need not move so far in proportion to
supply larger quantities.
This will be found a great advantage in the case of what are known as self-
loading governors.
On the top of the outer gas chamber is placed a tank containing water in
which works a bell or holder attached to the valve spindle which passes through
a central scaling tube and actuates the valves in the usual way, and in order
to ensure a minimum and unvarying amount of friction in this valve action we
counterbalance the two valves and their adjuncts by suspending them from the
are or end of a beam supported on knife edges, or other anti-friction bearings by
a suitable pillar and suitably weighted at its other end.
It will be evident that the pillar supporting the beam can be fixed in any
position around the tank and bell as may be required by special circumstances;

page_text: and the whole governor is very compact in construction besides possessing the
advantages set forth in the above description.
Datad this 5th love of .... 1000
GEO. DAVIES & SON,
Agents for the Applicants,
4, St. Ann's Square, Manchester.
pros asegurators,
We, JOHN HAWKYARD, Foreman, of The Hollies, Upper Mill, Saddleworth, in
the County of York, and JOSEPH BRADDOCK, Gas Engineer, of 72, Windsor Road,
Oldham, in the County of Lancaster, do hereby declare the nature of this inven-
tion 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 to gas regulators used for governing the pressure in a
supply main, and the objects of the invention are to combine compactness of
construction and adaptability to varying conditions of position and available.
space, with the greatest accuracy in action, and also to compel the valves to move
or travel a considerable distance, to supply a small quantity of gas in proportion
to their motion when supplying larger quantities thereof.
The manner in which our said invention may be performed or carried into
practical effect will be readily understood on reference to the annexed sheet of
drawings and the following explanation thereof.
Fig. 1 is an elevation (partly in section) of our improved gas regulator, Fig. 2
is a plan view of the same, and Fig. 3 á horizontal section taken through the
valve chamber.
The regulator consists as usual of a gas chamber a in which a second similar
chamber is cast or fitted.
The inner chamber is provided with two valve seatings c d loose or other-
wise, one above the other and two valves e, f on one spindle y on the well known
principle of the equilibrium valve, both valves opening and closing simultaneously.
The side or sides h of the apparatus see Fig. 3 is or are preferably removable
and common to both chambers so that the valves and seatings are easy of access.
If of cylindrical form (which we prefer) these valves are each closed at one
end and open at the other, and in the periphery of the cylinder we form
slots lengthwise, that is to say in the direction of the axial line thereof.
Each slot is preferably made in the form of an isosceles triangle (or similar form)
with its apex or pointed end towards the closed end of the valve. We may make
any suitable number of these slots in the cylinder commencing at or about the
same distance from the open end but one extending nearly to the closed end,
the others being shorter say by about three or four inches, according to the
size of the governor, so that they will not open to allow gas to pass so soon as
the longer slot.
By this construction the valves and spindle must travel a considerable distance
to supply a small quantity of gas and need not move so far in proportion to supply
larger quantities.
This will be found a great advantage in the case of what are known as self-
loading governors.
On the top of the outer gas chamber a is placed a tank i containing water in
which works a bell or holder k attached to the valve spindle g which passes
through a central sealing tube and actuates the valves e, f in the usual way,

page_text: and in order to ensure a minimum and unvarying amount of friction in this
valve action we counterbalance the two valves and their adjuncts by suspending
them from the are or end of a beam m supported on knife edges, or other anti-
friction bearings by a suitable pillar n and suitably weighted at its other end.
It will be evident that the pillar supporting the beam m can be fixed in any
position around the tank and bell as may be required by special circum-
stances; and the whole governor is very compact in construction besides
possessing the advantages set forth in the above description.
By continuing the back pressure pipe p into the inner chamber b instead of
into the chamber a as shown it is evident that the inlet may be at B instead
of at A.
We prefer to fix in the governor bell a central chamber or tube t covering
the sealing tube as shewn, but this tube t may be dispensed with when the
inlet is at A as shown in the drawing, and in such case the tube p might also
be dispensed with.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:-
-
1. The construction arrangement and combination of the various parts con-
stituting the improved gas regulator as herein before described and illustrated
by the drawings annexed.
2. The novel form or construction of equilibrium drum valves with taper
openings of varying lengths as herein before described and illustrated.
1000
GEO. DAVIES & SON,
Agents for the Applicants,
4, St. Ann's Square, Manchester.