Improvements in connection with Valves for Baths and other purposes.
Year: 1894

page_text: Date of Application, 31st Oct., 1894
Complete Specification Left, 16th May, 1895-Accepted, 22nd June, 1895
PROVISIONAL SPECIFICATION.
Improvements in connection with Valves for Baths and other
purposes.
GEORGE GREGORY 23 Brooksby Street Islington in the County of Middlesex,
Engineer do hereby declare the nature of this invention to be as follows :--
My invention relates to valves chiefly for the use of baths for supplying hot and
cold water or the two in a mixed state from one valve. Also to afford increased
repairing facilities to reduce concussion, and increase its durability.
In carrying out my invention the body of the valve will be made in two
sections, so that the top part can be easily removed to repair or replace the valves
seating's.
The body of the valve will be so formed as to have two distinct water chambers,
through which the valves will work independently of each other, by the action of
a small crank motion, which will be supported by a standard cast on the body of
the valve, and on the motion being given a rotory action will push the valves away
from their seating's to allow the water to pass freely.
A spiral spring is combined with the said valves and spindles in such a manner
as to keep the valves against their seatings, moreover the water pressure assist's
the said springs in keeping the valves water tight.
For the purpose of making the valve spindles both strong and light, I find it
advantageous to use steel spindles, cased with brass or other metal to prevent
corrosion.
Another feature of my invention is to prevent the shock caused in most valves
on shutting the liquid off to suddenly. In this case I use a travelling seating
made of india rubber or other suitable material, slightly cuped so as to act as a
cushion against its top seating. Also the shoulder of the valve will be grooved
out to retard the action of the water and prevent the valve closing to suddenly.
Dated this 30th day of October 1894.
Improvements in connection with Valves for Baths and other
purposes.
I, GEORGE GREGORY, of 23 Brooksby Street, Islington, in the County of
Middlesex, do hereby declare the nature of this invention, and in what mauner
the same is to be performed, to be particularly described and ascertained in and
by the following statement :-
This invention relates to improvements in that class of valve apparatus specially
applicable for controlling the supply of hot or cold water or mixed hot and cold
water to baths, and which are generally provided each with two separate chambers
connected respectively with the hot and cold water supply, two spring-controlled
valves for allowing the water to enter a chamber (common to the hot and cold
water) an outlet to the bath and suitable crank or lever mechanism for opening one
or other of the valves, or both of them at the same time.

page_text: The invention will be best understood by reference to the accompanying drawings
in which
Figure 1 is a front elevation (partly broken away) of the valve and a portion of
the bath-capping.
Figure 2 is a view showing, in side elevation, the valve, and in section, a portion
of the bath-capping and a portion of the partition forming the wall of the bath-
room; the valve in this figure and Figure 1 is allapted to be operated from the
outside of the partition as in public baths.
Figure 3 is a view of one of the valves.
Figures 4 and 5 are elevations of the upper part of the valve as arranged for
operation from within the bath-room.
Like letters indicate like parts throughout the drawings.
A indicates the valve body which comprises two separable parts, viz.;-a
casing A and a plate or cover A² secured together as by screwed studs B and
nuts B' these latter being so arranged that the parts which have to be unscrewed,
when it is desired to separate A¹ from A² or vice versa, are not exposed to the
corrosive action of the water. The plate or cover A2 is formed with lugs A³ by
which it may be secured to the partition C and the joint between the casing A' and
plate A is made with any suitable material, brown paper is found to answer very
well for the purpose.
The casing A is divided by a horizontal partition A into upper and lower
compartments or chambers the latter being divided by a partition A into two
separate chambers A' A' each of which is provided with a valve D controlling the
passage of water from it into the upper chamber A³.
The hot and cold water supply pipes E E' are connected to the chambers A A'
respectively, or vice versa. The partition A* is provided with seatings for the
valves D each of which prefer to construct as follows;—
I take a steel spindle D' screw threaded at the lower end as shown in dotted
lines in Fig. 3 and upon this I cast the winged body D2 whose head or piston D³
I form with peripheral recesses D' to prevent the too-sudden shutting off of the
water supply as will be well understood.
Below the head D³ of the winged body D2 I provide a washer D' of india rubber
preferably having one or more plies of linen embedded in it this washer fitting into
a recess in the upper side of the cap or disc D secured on the spindle D¹ by means
of the nut D. The washer D' may however be of other suitable joint-making
material than rubber and the disc De may be of spun metal. By this device the
edge of the washer D7 (which is made to fit tightly into the recess of the disc D³)
is entirely protected from the fraying action of the water, which is a feature not
hitherto provided in other valves, of this class.
In fitting the valve in position in the casing A I place on the upper end of the
spindle D¹ a sleeve D' of brass gun-metal or other not readily corrodible material;
this, together with the spindle D' is passed up through the valve seat and through
the stuffing box A³ and gland A10. The spring F is then placed around the
sleeve D³ and spindle D₁ and a cap D secured by a split pin or equivalent Do
upon the upper end of the spindle D' so that by the spring exerting its pressure
upon the gland A10 and cap D it serves both to maintain a tight joint in the
stuffing-box. A and to hold the valve D hard against its seat until it is depressed,
and return it to its seat when it is released.
At the upper part of the case A. I provide a standard A" (preferably cast in
one with it) and in the upper part of this I mount a horizontal shaft G which at
one end carries a crank pin G' engaging with the arm H of a three armed
lever H H H pivoted by a slot H³ on a pin or stud I projecting outwards from the
standard A". Each of the lever arms H' H2 extends over and is adapted to
depress one of the valve spindles D', this operation depending upon the manner of
operating the shaft G for example when the shaft G is turned in the direction
indicated in Fig. 1 by the arrow g the left hand of the valves D in that figure will
be depressed, and the water from the pipe E only, will be admitted to the bath,

page_text: when however it is turned in the reverse direction, as indicated by the arrow gl the
right hand of the valves D will be depressed and only the water from the pipe El
will be admitted to the bath. When it is necessary to supply a mixture of hot
and cold water to the bath the shaft G must be turned 180 degrees, from the
closing position, in either direction, so that both of the valves D will be opened
at once.
One end of the shaft G (in Fig. 2 the outer end and Figs. 4 and 5 the inner
end) is shaped so that it may receive a suitable key J (Figs. 4 and 5) so as to
enable it to be readily turned either from the outside or inside of the bath room,
a suitably-engraved index plate K being provided to indicate the different
positions to which the shaft must be turned to bring the valves D to their various
closing or opening positions.
In existing valves of the class upon which my invention is based the chamber A
is formed in a separate casting from that in which the chambers A' A' are formed,
these latter being provided in a casting of which the plate A² forms au integral
part. In that arrangement the joint between the two separate parts of the casing
is formed with a sheet of rubber against which the metallic heads of the valves
bear when in their closed positions. When this rubber wears out say only at one
of the valves (the one exposed to the action of the hot water generally wears out
quicker than the other) it necessitates the renewal of the whole piece whether the
rubber at the other valve is in good condition or not, whereas when the apparatus
is constructed as before described each valve can be fitted with new rubber or
other material independently of the other and this with considerably less
expenditure for rubber or other material than what has before been necessary.
By constructing the valve spindle D' of steel in the manner before described I
not only economise in the cost of production owing to the decrease of gun-metal
used but I also render it proof against bending by sudden concussion as they
sometimes do when made wholly of gun-metal or like material.
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is ;-
1. In valve apparatus such as described a casing such as A comprising two
separable parts one having formed in it three chambers such as A6 A7 A8 and the
other constituting a cover plate substantially as described and illustrated in the
accompanying drawings.
2. In valve apparatus such as described the combination with a movable valve
of the rubber or equivalent joint-face movable with it substantially as described
and illustrated in the accompanying drawings.
3. In apparatus such as described a valve consisting of a screwed spindle with a
winged body D D' cast upon it and the valve proper placed over the spindle and
pressed against the winged body by a nut D' substantially as and for the purpose
described and illustrated in the accompanying drawings.
4. In apparatus such as described protecting the edge of the valve rubber
against the fraying action of the water substantially as described.
5. The combination and arrangement of parts constituting the complete valve
substantially as described and illustrated in Figure 3 of the accompanying
drawings.
6. The combination and arrangement of parts constituting the complete valve
apparatus substantially as described and illustrated in Figures 1 and 2 of the
accompanying drawings.
Llotod
1000
Loto L
16th day of May 1895.
GEORGE GREGORY.
Boult & Wade,
Agents for the Applicant.
GEORGE GREGORY.
Boult & Wade,
Agents for the Applicant.