Year: 1898

page_text: I, JENKIN WILLIAMS, of 1501, Spruce Street, Pueblo, in the County of Pueblo,
and State of Colorado, United States of America, Millwright, do hereby declare.
the nature of this invention to be as follows:--
This invention relates to fluid pressure regulators for gas, water, air, steam, or
other supply pipes. The regulator comprises a valve chest connected with the
main, and a slide valve seated over ports one of which connects with the service
pipe and the other leading to the atmosphere, the slide valve having corresponding
ports so arranged that when the service port is full open the other is closed.
The valve is held to its seat by an adjustable spring and the valve stem is
connected to, and operated by, an expansible bellows chamber in communication
with the service pipe so that when the pressure therein rises in consequence of an
abnormal rise of pressure in the main, the valve is moved so as to cut off the supply
to the service pipe and open the escape to the atmosphere. The valve rod carries
a spring acting in opposition to the bellows and the valve rod stuffing box is
preferably formed with a chamber to be filled with oil, to prevent leakage through
the stuffing box and lubricate the rod.
In case of the breaking of the service pipe by accident or through fire or
otherwise, it is suddenly released of its pressure and consequently the bellows
collapse and move the slide valve to shut off the supply to the service pipe. Thus
in case of a fire in a house, the supply of gas, for instance, or that of water, is
automatically shut off.
The escape port may be dispensed with but in that case, when the pressure in
the main falls below a normal pressure the valve cuts off the connection with
the service pipe completely and does not return automatically into an operative
position on a subsequent increase of pressure. Thus no gas can pass to the supply
pipe on such increase of pressure in the main or to the burners in the house which
are usually left open and consequently the house or other building is not filled with
gas and explosions are not liable to result.
In order to again set the valve in operative position on return of pressure it is
necessary to expand or draw out the bellows by hand so as to shift the valve and
thereby open connection between the valve chest and service pipe.
Dated this 5th day of An: 1900
I, JENKIN WILLIAMS, of 1501, Spruce Street, Pueblo, in the County of Pueblo,
and State of Colorado, United States of America, Millwright, do hereby declare
[Price 8d.]

page_text: 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 invention relates to fluid pressure regulators for use on supply pipes
conveying natural or artificial gas, water, air, steam, or other fluid, and it has
for its object to provide a new and improved safety pressure regulator which is
simple and durable in construction, very effective,, and, automatic in operation.
The invention consists of certain parts and combinations as will be fully
described hereinafter and then pointed out in the claims.
Reference is to be had to the accompanying drawings forming part of this
specification in which Figure 1 is a side elevation of the improvement with parts
in section; Figure 2 is a face view of the chest with the cover removed; Figure 3
is a sectional side elevation of a modified form of the improvement; and Figures 4
and 5 are face views of the springs for holding the valve to its seat in the chest.
Similar characters of reference indicate corresponding parts in all the figures.
The improved pressure regulator comprises a chest A connected by a pipe B
with the main through which passes the natural or artificial gas, water, air,
steam, or other fluid. In the chest A is formed a valve seat A', from which leads
a port a which connects with the service pipe C leading into the house or other
building or connects with a machine, apparatus or other device. On the valve
seat A is mounted to slide a valve 1 having a port b adapted to register with
the port a to allow the fluid entering the chest A from the main to pass through
the said ports into the service pipe C and from the latter to the burner, machine,
or other apparatus. The valve D is also provided with a second port e adapted to
register with a port d opening into a pipe E leading to the atmosphere, the ports
and being normally disconnected when the ports a and b are in full register with
each other, as indicated in Figure 1. The valve D) is held to its seat by a spring F
secured to the inside of the cover of the chest and the tension of the spring can be
regulated by a screw F1, screwing through the cover against the spring so. as to
press the latter with more or less force against the valve to hold the latter properly
to its seat so as to prevent leakage between the valve and its seat A. The service
pipe C has a short branch pipe C, which opens into a bellows G rigidly connected
at its top G with the rod H passing through a stuffing box I into the chest A
and connected with the valve ]). A spring Jis coiled on the rod H and is confined
between the gland of the stuffing box and the base of a cup I attached to ibe
top G¹ of the bellows. The said cup abuts against the gland when the bellows G
are fully expanded and thus prevents breaking of the spring J by compression
thereof beyond a certain limit. The stuffing box I is preferably formed with a
chamber to be filled with oil whereby to prevent leakage of the fluid through
the stuffing box and lubricate the rod.
The operation is as follows:-In the position shewn in Figure 1 the fluid from
the main can pass through the chest A and ports ab to the service pipe C and
thence to the burners or other places to which it is to be supplied, the fluid also
entering the bellows G and expanding the latter so as to hold the valve D in the
open position shewn. Now when the pressure in the main increases beyond a
normal pressure, the pressure in the pipe C causes the bellows G to expand still
further whereby the slide valve D is moved upward to cut off the ports a and b
and to connect the ports d and c with each other to permit the escape of the fluid
from the chest A through the pipe E. When the pressure decreases, the bellows G
collapse correspondingly and the ports de are closed and the ports a and b are
again opened.
In case of the breaking of the service pipe by accident or through fire or
otherwise, the sudden release of pressure causes the bellows G to collapse and
move the valve D into a closed position by cutting off the ports a and b and thus
shutting off the supply of the fluid to the pipe C. Thus in case of a fire in a
house, the supply of gas, for instance, or that of water, is automatically shut off.
In Figure 3 the pipe E is omitted but otherwise the construction is the same

page_text: as above described, that is the chest A is connected by the pipe B' with the main
and the fluid passing from the chest to the service pipe C is controlled by the
valve D¹, pressed on by a spring 12 and connected by the rod H' with the bellows.
By the arrangement described the valve D regulates the connection between
the main and service pipe on an increase of pressure, but when the pressure in
the main falls below a normal pressure the valve D cuts off the connection
between the chest A and service pipe C completely, and the valve does not return
automatically to an operative position on a subsequent increase of pressure. Thus
no gas can pass to the supply pipe C on such increase of pressure in the main or to
the burners in the house, which are usually left open, and consequently the house
or other building is not filled with gas and explosions are not liable to result.
In order to again set the valve D in operative position on return of pressure
it is necessary to expand or draw out the bellows G by hand so as to open connection
between the ports a and b by shifting the valve D) or D¹ accordingly.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is:-
1. In a fluid pressure regulator the combination of a chest having an inlet and
an outlet orifice and having a valve seat formed around the outlet orifice, a slide
valve mounted on the seat and commanding the outlet orifice, a spring attached to
the interior of the chest and pressing the slide valve against the seat, a rod
attached to the slide valve, a spring actuating the rod, and a bellows in connection
with the rod whereby to actuate the same.
2. In a fluid pressure regulator the combination of a chest having an inlet
and an outlet orifice, the chest having a valve seat formed around the outlet orifice,
a slide valve mounted on the valve seat and commanding the outlet orifice, a
spring attached to the interior of the chest and pressing the slide valve against
the seat, a rod attached to the slide valve and moving through a gland in the
chest, and means for actuating the rod whereby to move the slide valve.
3. In a fluid pressure regulator the combination of a chest having an inlet and
an outlet orifice, the chest having a valve seat formed around the outlet orifice, a
slide valve moving on the valve scat and commanding the outlet orifice, a spring
attached to the interior of the chest and pressing the slide valve on the seat, a rod
attached to the slide valve, a packing gland in one wall of the chest through
which gland the rod reciprocates, a bellows in connection with the rod and
having communication with the outlet orifice of the chest, and an expansive
spring surrounding the rod and bearing against the bellows and against the
packing gland.
4. In a fluid pressure regulator the combination of a chest having an inlet
and an outlet orifice therein a slide valve commanding one of the orifices, a rod
attached to the slide valve, a packing gland in one wall of the chest through which
gland the rod reciprocates, a bellows attached to the rod and having communication
with the orifice commanded by the valve and an expansive spring surrounding
the rod and bearing against the gland and bellows.
1000
A. M. & WM. CLARK,
Chartered Patent Agents, 53, Chancery Lane, London.