Improved Hot-water Apparatus.
Year: 1893

page_text: Date of Application, 4th Dec., 1893-Accepted, 27th Jan., 1894
COME UNED OI MOITICATION.
Improved Hot-water Apparatus.
1, THOMAS REDFERN LEIGH, of 67 Deansgate, Manchester Iron-monger,
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 :-
The improvements relate to apparatus for heating cold water by means of steam
or by mixing the same with boiling or hot water, and have for object the mixing
of steam and water, or hot and cold water, in one vessel, and by one operation, in
such manner as to give approximately the degree of temperature required.
To accomplish this, and to effect my improvements, I form a twin or double
valve in such manner that one hand wheel or lever handle is capable of simul-
taneously actuating the pair. One of these valves closes or controls the water
supply, and the other the steam supply, and, by preference, are adjustable to the
volume of steam or water desired to be emitted from cach supply to produce the
required temperature.
By this means, when the hand wheel or lever handle is operated, both valves
are opened, and, in the case of steam and water, by preference in such manner
that the water valve is set so as to be opened slightly before the other, when the
water and steam are allowed to enter the mixing vessel-which may be an
intermediate vessel between the valves aforesaid and the receptacle, such as a bath
or any other container, where the heated water is required-or the steam and
water may be permitted to mix, in some cases, in the final receptacle intended for
its use.
I employ, for the purpose of actuating the twin or double valve, a screw spindle
and hand wheel with a cross-head connecting the two valve spindles, or I may
employ for this purpose cones or cams, which are operated upon or by the spindle
of the hand-wheel, or by the lever handle.
But that the improvements may be better understood, 1 will, with the aid of the
accompanying drawings, proceed more fully to describe means employed by me.
DESCRIPTION OF DRAWINGS.
Fig. 1. is a front elevation, and Fig. 2. a plan view, partly in section, of
apparatus arranged in accordance with my improvements.
being connected
The same letters indicate corresponding parts wherever they occur.
a. a. and b. b. are the casings of the twin or double valve, a.
with the cold-water pipe c, and b, with the steam, or hot-water pipe d.
The cold-water pipe c. is, by preference, continued within the mixing vessel or
intermediate receptacle e. as shewn by dotted lines, and is perforated to allow of
the water escaping into such vessel, in jets; by which means, the water may be
more equably heated, prior to passing, through the delivery pipe g. into the final
receptacle for use.
h. k. are the valve spindles, controlling the valves l. m.
The valve m. is formed, in this case, and by preference, with an extended closing
surface m, which causes the steam or hot water passage to remain closed for some
time after the cold-water valve 1. has been opened; but, in lieu of this extended
closing surface, other means for accomplishing this object may be employed, if
desired, or the two valves may be caused to open simultaneously.
The valve spindles h. k are connected by the cross-head o, which receives motion
through the screw p. actuated by the hand-wheel or equivalent r.

page_text: Variations may be made in the details of the apparatus, without departing from
the peculiar character of the invention, which mainly consists in the actuation of
a double or twin valve, one controlling the cold water, and the other the steam or
hot water supply, by means of a single direct operating hand-wheel or lever
handle, as the case may be, which controls the relative supply of the two fluids, so
as to obtain approximately the desired temperature of the water thus heated.
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 :-
In hot-water apparatus, the employment of a double or twin commingling or
delivery valve, controlled or actuated, at one operation, by a single hand-wheel or
handle, for the purpose and in manner substantially as herein shewn and described.
Dated this 2nd day of December 1893.
WILLIAM GADD, C.E.,
64, Barton Arcade, Manchester, Agent.