Improvements in Valves for Cisterns, Tanks, Reservoirs, Hoppers, Drums, and like Vessels.
Year: 1888

page_text: Date of Application, 19th May, 1888
Complete Specification Left, 15th Feb., 1889
Complete Specification Accepted, 13th Apr., 1889
Improvements in Valves for Cisterns, Tanks, Reservoirs, Hoppers,
Drums, and like Vessels.
We WALTER STONE and HENRY EDWARD TURNER of Dorking in the County
of Surrey Engineers do hereby declare the nature of this invention to be as
follows:-
This invention relates to improvements in valves for cisterns, tanks, reservoirs,
hoppers, drums, & all like vessels for containing liquids, the object being to enable
a portion of the contents to escape from the vessel by a valve which closes
automatically when the required amount of liquid has passed out. For this purpose
we use a valve which is considerably lighter when immersed than when partially
exposed, this we accomplish either by a boyant substance such as a piece of cork &c.
or a cup, cylinder, or vessel, attached to or connected with the valve; or we use a
valve the upper portion of which is hollow, or cup shaped, & the valve on being raised
is kept open by a counter balance weight or spring and when the liquid has run off
below the level of the cup portion of the valve, the weight of the valve is sufficiently
increased by the liquid retained in the cup as to cause the valve to close.

page_text: We WALTER STONE & HENRY EDWARD TURNER of Dorking in the County of
Surrey, Engineers 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 object of this invention being to withdraw liquid from a vessel by means of
a valve which closes automatically before the vessel is emptied or when a required
quantity of the contents shall have passed out.
For this purpose we use a valve or a substance or vessel attached to or connected
with the valve, which is considerably lighter when immersed than when wholly or..
partially exposed, this we accomplish either by a boyant substance such as cork &c.
or a cup cylinder or vessel attached to or connected with the valve or we use a valve.
the upper portion of which is hollow or cup shaped; the valve on being raised is
kept open by a counterpoise, weight, lever, spring, trigger stop or similar means,
and when the liquid has run off below the level of the cup portion of the
valve, the weight of the valve is sufficiently increased by the liquid retained in the
cup as to cause the valve to close.
Fig. 1. on the accompanying drawing represents a section of a flushing cistern
with the valve closed, the valve in this case being required to close while there yet
remains a portion of water in the cistern. A represents the cistern B. a section of
the valve cup C the counterpoise which, as in this case, may be adjustable to
regulate the depth of water left in the cistern on the valve closing. D represents
the crank.
Fig. 2. represents a crank arrangement for a similar cistern as Fig. 1. but in this
case two cranks are used instead of a single one a being a crank for lifting crank b
which raises the-valve; the two cranks are hung on different centres (or separate
bearings which are not in a line with one another), crank a being provided with a
hinged tongue or pall e, crank 6 having a fixed stud d projecting over the pall c; on
crank a being raised by a pull on the chain e, crank b is lifted by the pall c until the
counterpoise has sufficient power to keep the valve open; and supposing the chain e
to be, held down either by error or design, the valve will close notwithstanding at the
proper time as the cranks are now in such a position that the stud d will pass the
pall c as is shown in Fig. 3. which represents Fig. 2. with the valve open the crank a
being weighted at g to bring it back into its original position, the pall c dropping
down on to its seat after passing the stud d.

page_text: Having now particularly described & ascertained the nature of our said
invention and in what manner the same is to be performed, we declare what we
claim is―
1. A valve which closes automatically as shown in the accompanying drawing.
2. A crank arrangement which improves the self-closing powers of the valve.
3. Ecconomy in water supply & the use of other liquids.
4. Prevention of the sucking noise which would be occasioned by the vessel being
emptied.