Year: 1888

page_text: do hereby declare the nature of this invention to be as f
My invention relates to water and gas cocks for use in connection with geysers and
other water-heaters.
In the use of geysers and similar apparatus inconveniences frequently arise from the
fact that the gas is lighted before the water is admitted or that the water is turned off
without the gas being extinguished.
The chief objects of my invention are to combine in an improved manner the water
and gas cocks in such a manner that the gas cock cannot be turned to allow gas to
pass before the water is turned on and that the water cannot be turned off until the
gas is extinguished, the improved arrangement allowing the supplies of water and
gas to be regulated independently of each other.
According to my said invention the water and gas cocks are arranged side by side,
and the plug of the water cock is operated by means of a plate or shield. When the
gas valve
plug is turned to stop the flow of water this shield covers the handle of the
so that the latter cannot be turned, but when the said plug is turned from its closed
position the gas cock is uncovered so that it can be operated.
The gas valve is preferably provided with a screw stem so that when the gas cock
is opened it projects sufficiently to prevent the water cock from being closed until the
gas cock itself is turned to shut off the gas. In some cases I employ a gas valve
which is normally held in a closed position by a spring. The plate on the plug of
the water cock is provided with a cam surface so that when the water plug is turned
the said cam surface acts to depress the valve stem and open the gas valve.
In cases where the gas cock can only be operated after the water cock has been
turned fully on 1 provide a second cock for regulating the quantity of water passing.

page_text: through the apparatus, or I arrange in conjunction with the plug of the water cock
a valve stem which is adapted to be screwed more or less into a longitudinal opening
in the said plug to correspondingly open or close the water passage through the
plug. This valve stem however is so arranged that it will not completely stop the
flow of water.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in and relating to Water and Gas Cocks for Use with
Geysers and other Water Heaters.
I, ELIOT ARTHUR DE PASS, of 3, Coleman Street, in the city of London,
Merchant, 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:-
My invention relates to water and gas cocks for use in connection with geysers and
other water heaters.
In the use of geysers and similar apparatus inconveniences frequently arise from
the fact that the gas is lighted before the water is admitted or that the water is turned
off without the gas being extinguished.
The chief objects of my invention are to combine the water and gas cocks in such
a manner that the gas cock cannot be turned to allow gas to pass before the water is
turned on, and that the water cannot be turned off until the gas is extinguished,
the improved arrangement allowing the supplies of water and gas to be regulated
independently of each other.
According to my said invention the water and gas cocks are arranged side by side,
and the plug of the water cock is operated by means of a plate or shield. When the
plug is turned to stop the flow of water this shield covers the handle of the gas valve
so that the latter cannot be turned, but when the said plug is turned from its closed
position the gas cock is uncovered so that it can be operated.
The gas valve is preferably provided with a screw stem so that when the gas cock
is opened it projects sufficiently to prevent the water cock from being closed until
the gas cock itself is turned to shut off the gas. I arrange in conjunction with the
plug of the water cock a valve stem which is adapted to be screwed more or less into
a longitudinal opening in the said plug to correspondingly open or close the water
passage through the plug. This valve stem however is so arranged that it will not
completely stop the flow of water.

page_text: WILL LOSCITOC чте
WYTULL
reference to the accompanying drawing, in which,
Figure 1 is an elevation of a combined water and gas cock arranged according to
my invention.
Figure 2 is a section on the line a. a Figure 1.
Figure 3 is a section on the line y, y Figure 1, and,
Figure 4a section on the line 2, 2, Figure 2.
Figure 5 is a view illustrating a modification.
a is the shell of the water cock and the shell of the gas valve, which shell is
attached to or formed integral with the shell a as shown most clearly in Figure 4.
c is the plug of the water cock and d is the plate or shield by which the plug is
operated. As shown in the drawing this shield is of segmental shape but it may be
made in the form of a disc or of any other desirable form. In some cases I find it
advantageous to attach a handle d¹ to the edge of the shield, as shown in Figure 1, to
facilitate the operation of the same.
e is the stem of the gas valve which is connected to the flexible diaphragm,
Figure 2, so that the said diaphragm can be raised from or pressed upon its
seat by rotating the said stem, which is screw threaded, in one or the other
direction.
In the plate or shield d is formed an opening g. so located that when the plug of
the water tap is turned "full on" the said opening will be opposite to the stem e
of the gas valve as shown in Figures 1 and 2, so that the said valve can be operated.
The shield d is arranged in such close proximity to the stem e that when the latter
is rotated to turn on the gas the head of the stem projects into the opening g of the
shield and so prevents the water cock from being operated until the gas valve is first,
closed. It will be understood that with this arrangement the water has to be turned
fully on before the gas valve can be operated.
h is the valve stem for regulating the quantity of water passing through the water
cock, and consequently the heat of the water. This valve stem projects into a hollow
in the plug c and serves to more or less obstruct the flow of water through the passage
in the said plug, but at no time to entirely stop it.
If desired I can regulate the flow of water through the cock by means of the plug
itself. In this case the opening g in the shield d is made larger than that herein-
before described, so that the gas-valve can be operated before the water cock is in
its "full open" position. In the drawing the said cock is shown in this latter
position.
i is a socket adapted to be secured to the wall of a room to support the improved
cock, the said socket being adapted to receive a screw-threaded projection on the
cock. I can, if desired, make the said projection tubular and allow the water to flow
through the same, so that the cock forms an angle cock.
In some cases employ a gas valve which is normally held in a closed position by
a spring. The plate or shield on the plug of the water cock is provided with a cam
surface so that when the water plug is turned the said cam surface acts to depress
the valve stem and open the gas valve.
Although in the foregoing description the water cock and gas valve are referred
to as being united together I wish it understood that I do not limit my invention to
this construction as it is obvious that the cock and valve may be separate from each
other. In this case however it is necessary that the shield attached to the plug of
the water cock should be sufficiently large to cover the gas valve, when the water is
shut off and be prevented from being closed until after the gas valve has been operated
to extinguish the gas.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
1 claim is :-
(1). The improvement relating to water and gas cocks for use with geysers and
other water heaters consisting in providing the plug of the water cock with a plate

page_text: gas
or shield which, during the time that the apparatus is inoperative, covers the stem
of the gas valve so that the latter cannot be operated, and which, after the valve
is opened, is prevented from being moved to shut off the supply of water until the
gas valve is operated to extinguish the gas, substantially as, and for the purpose,
described.
(2). In a water cock for geysers and other water heaters, a hollow plug in combi-
nation with a screw stem for regulating the flow of water through the said plug,
substantially as described.
(3). The manufacture and use of combined water and gas cocks, substantially as
herein before described with reference to the accompanying drawing.
Dated the 12th day of January
G. F: REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.
G. F: REDFERN & Co.,
4, South Street, Finsbury, London,
Agents for the Applicant.