Improvements in Kitchen Boilers.
Year: 1891

page_text: COMPLETE SPECIFICATION.
Improvements in Kitchen Boilers.
ALFRED BETTS of 43 Coninghain Road Shepherds Bush London W. Builder
and JOHN ALEXANDER FORRESTER of 18 Godolphin Road Shepherds Bush
London W. Clerk 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:—
Our invention relates to improvements in kitchen boilers and has for its object
the application of a three-way cock to such boilers, whereby, either cold, luke-
warm, or hot water, may be supplied as required; said cock establishing, when not
in use, a communication between the boiler and the cistern, for the purpose of
feeding the former.
In the accompanying drawings,
Figure is a diagrammatic view showing the relative positions of the boiler,
provided with our improved cock, and of the cistern.
Figures 2, 3, 4, 5, 6, and 7 are diagrams illustrating the various positions assumed
by our improved three-way cock.
Referring to Figure 1, B is the boiler, C the cistern, and A the three-way cock
connecting the boiler to the cistern by means of the pipe P.
With reference to Figures 2 to 7, is the shell of the three-way cock; p is the
plug in section; and, a, b and c are the three ways of said cock.
In Figure 2, the cock establishes a communication between the boiler and the
cistern. The water from the latter enters at and passes through a into the boiler
in the direction shown by the arrow. If a quarter turn is now given to the plug p
it will assume the position shown in Figure 3, hot water from the boiler being
supplied by the cock, in the direction shown by the arrow; that is to say, through
the ways and b. Another quarter of a turn brings the plug into the position
shown in Figure 4, cold water being then supplied from the cistern through b
and a in the direction of the arrow. A further quarter of a turn brings about an
intermediate stage, hot water being now supplied from the boiler through the
way at the same time that cold water is supplied from the cistern along the
way a, as clearly indicated by the arrows, the result being that semi-hot or luke-
warm water is delivered by the cock through the way c. A last quarter of a
turn (Figure 6) brings the tap back in the same position as at starting (Figure 2).
Should the cistern be on the left hand side of the boiler instead of on the right
hand side as shown in Figure 1, the arrangement would be reversed as shown in
Figure 7, wherein the cock is closed and establishes a communication between the
cistern and the boiler, cold water running into the latter in the direction of the
arrow from c to a. The various turns which have to be given to the cock according
to the kind of water required, would be suitably indicated on the outside of the
cock.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
The application to a kitchen boiler of a three way cock arranged constructed
and operating substantially as herein described and shown, for the purpose of
supplying at will either hot, cold or lukewarm water while establishing when not in

page_text: use a communication between the boiler and the cistern and thus replenishing the
former.
Dated this 21st day of July 1891.
JAMES STEVENSON,
Gray's Inn Chambers, 20, High Holborn, London, W.C.,
Agent for Applicants.