IMPROVED AUTOMATIC DISCHARGE VALVE
Year: 1887

page_text: Date of Application, 21st Apr., 1887
Complete Left, 17th Oct., 1887
Complete Accepted, 18th Nov., 1887
WILLIAM LEWIS HOLLAND Brassfounder 141 Adelphi Street Preston do hereby
declare the nature of my invention for IMPROVED AUTOMATIC DISCHARGE VALVE to
be as follows :-
This invention has for its object the discharging of all the water in a cistern or tank
although the lever, handle or whatever other means may have been adopted to set it
in action may have been released, and after all the water or other liquid has been
discharged to close again automatically.
In the accompanying drawings Fig. 1 represents a cistern complete such as would
be used for flushing a water closet, A is the cistern shown in section, B is an ordinary
ball cock for regulating the filling of the cistern with water, G is the automatic
discharge valve for the efficient discharge of the water contained in the cistern A,
it is brought into action by the valve lid D being raised by means of the link E and
a lever F which communicates with the outside of the cistern, the link E is so formed
as to raise the lever B' of the ball cock at the same time that it lifts the valve lid D
thus closing the ball cock B and preventing waste of water through the valve G being
kept constantly open.
Fig. 2 is a section of the improved automatic discharge valve as used for waste valve
of closet cistern.
Fig. 3 is a section of the aforesaid valve when open and allowing the contents of
cistern to escape.
Fig. 4 is a plan of the valve before mentioned.
Fig. 5 is an end elevation of Fig. 4.
Fig. 6 is a plan and elevation of the small copper ball and lever which prevents the
valve from closing before the contents of the cistern has escaped.
D is the valve lid made of brass, iron or other suitable material, and is cast with two
ears C. C. and has a rubber or leather washer J upon the face secured by means of a
plate and nut K H is the body of the valve and has a suitable face for the valve lid D
Price 11d.1

page_text: to make a water tight joint by means of the washer J on opposite sides of H are cast
two plates or wings L L having a slot in them of sufficient depth for the ears C C to
slide in when the valve is closed, for convenience of manufacture the plates or
wings LL may be made in a separate casting as it is shown in the drawings, and
have a collar or flange which by placing a washer N of rubber or leather between it
and a similar flange on H a water tight joint will be made, on one of the wings La
stop S is cast, M is a lever shaped as shown in Fig. 6 having a copper float ball O
at one end and at the other ends of M are two studs P P which fit into and work
easily in two holes drilled in the plates or wings L and has also two projections or
catches R. R.
The principle of its action as applied to a closet cistern is this, when the lever F is
pulled it raises the valve lid D by means of the link E when the valve D is raised a
sufficient height the copper float ball O can raise itself and the lever M working upon
the pins or studs P P bring the catches R R across the slots wherein the ears CC
slide but the catches R R are prevented from going too far by means of the stop S
when the lever F is released the cars C. C. fall upon the catches R R thus preventing
the valve lid D from closing, when the water has got below a certain level the float
ball O will no longer float and its weight by lowering the lover M draws the catches R R
from across the slots in I. L thus allowing the valve lid D to fall, as the cistern fills
again the float O attempts to rise again but is prevented by the catches R R pressing
against the sides of CC thus being ready to slip under immediately the valve is
raised.
Having thus particularly described my said invention and the manner of applying
the same what I claim as novel is this method of making a valve which when closed
shall resist the pressure of water in a cistern and when opened will remain open until
the cistern is emptied of its contents and shall then close again and remain closed
until opened by means provided for that purpose and what I particularly claim is the
ears upon the valve lid D and the slots in which they slide also the lever M with the
catches R R and float ball O and the manner of applying the same.
Dated this. 20th day of Anril 1887

page_text: I WILLIAM LEWIS HOLLAND, of 141 Adelphi Street, Preston, in the County of
Lancaster, Brass Founder, do hereby declare the nature of this invention and in what
manner it is to be performed to be particularly described and ascertained in and by the
following statement:―
This invention has for its object the construction of valve apparatus for discharging
the contents of a cistern or tank in such manner that when the ordinary discharge
lever, handle, or other appliance has been actuated or pulled and then released all (or
nearly all) the water or other liquid will thereby be allowed to dischargo itself from
the cistern or tank whereupon the discharge outlet will be automatically closed.
In the accompanying drawings
Fig. 1 shews an arrangement of cistern apparatus suitable for flushing a water
closet. A is the cistern (shown in section) and b'is an ordinary ball cock for regulating
the filling of the cistern with water. My improved automatic discharge valve com-
prises a valve lid d connected by means of a link e to the ordinary pull-down lever f
which is operated in the usual way from the outside of the cistern The link e is
formed with the usual slot through which the ball cock lever 6 passes. When the
link e is pulled upwardly it lifts the valve lid d the lever 6 being simultaneously lifted
thereby closing the ball cock b whilst opening the discharge valve below and preventing
waste of water as will be well understood.
Fig. 2 is a side view of my improved automatic discharge valve (detached from the
cistern) with the lid d in its raised or open position when allowing the contents of a
cistern or tank to escape.
Fig. 3 is a sectional view and
Fig. 4 an end view of my improved valve with the lid d in its closed position.
Fig. 5 is a plan view of my improved valve.
The valve lid d may be made of brass, iron, or other suitable material and (in one
arrangement) is cast or otherwise formed with ears c. c. one on each side and is
provided with an india-rubber or leather washer upon its under side secured by means
of a screw bolt i and nut k. The lower screw threaded tubular part à constitutes the
body of the improved valve and has a suitably formed face or seating (preferably
as shewn in the drawings) the valve lid d by its own weight when closed making a
water tight connection with the seating. The tubular part is formed with an annular
flange gand (in the arrangement referred to) from the two opposite sides of the flange
rise a pair of slotted guides or standards within which the ears c. c on the valve
lid d are free to slide up and down. Or, for convenience of manufacture, the slotted
guides may be made in a separate piece with a bottom collar or flange w (as shewn
in the drawings). By placing an india-rubber or leather washer n between the two
collars 10 and a water-tight joint may be made when the valve apparatus is screwed
down in position at the bottom of the cistern (as shown in Fig. 1) by means of the
screw nut r. s is a stop formed on the flange w. t is a heel and catches on the
pivotted forked lever m which is preferably shaped as shewn in the drawings. A
copper float ball o is carried upon the outer end of the lever m and the other ends of
the forked lever work upon two studs or pivots pp which fit into and work easily
within corresponding holes in the lever m.

page_text: l
The action of my improved automatic discharge valve as applied to a water closet
cistern is as follows:-When the lever is pulled downwards from the outside of the
cistern the valve lid d is pulled upwards by means of the link e whereupon the copper
float ball is at liberty to rise to the position shewn in Fig. 2 thereby lifting the
lever m so as to bring the upper edges of the catches rr across the guide slots in the
standards (see Fig. 2) and therefore underneath the ears e c, the catches being
prevented from being moved too far by the heel meeting the stop 8. When the
lever is released the valve lid d drops until the ears c c rest upon the catches r. (as
shown in Fig. 2) the valve lid d being held up and prevented from closing until the
water level falls below a certain point whereupon the float ball o will also descend and
by its descending weight lower the lever m thereby withdrawing the catches from
underneath the cars cc thus allowing the valve lid d to drop on to its seating and so
to close the valve. Thereupon the cistern A will be again filled with water from the
ball cock band the float fall will endeavour to rise but will be prevented from so
doing by the vertical adjoining edges of the catches meeting the sides of the cars co
under which they will be in readiness to slip when the valve lid d is again raised by
the action of the lever and the upward movement of the link e.
2°
Fig. 6 shews in plan view another arrangement of guides or standards for guiding
the valve lid d vertical rods passing through the perforated ears ce being employed
in lieu of the slotted standards 11 hereinabove described and shewn in the preceding
figures.
Figs. 7. 8. and 9 are respectively a side elevation, a sectional elevation, and plan of
a modified arrangement of my improved automatic discharge valve apparatus the valve
lid being carried on a central vertical guide spindle sliding through the vertical
bearing a. In lieu of the ears ce as above described a projecting flange plate u is
employed the forked lever mearrying fingers which piss into a vertical position.
under the projecting flange plate it when the valve lid d is raised the fingers y being
withdrawn from thereunder when the float ball o descends as first hereinabove
described.
The above described arrangements of apparatus provide a valve which when closed
will resist the pressure of water in a cistern or tank and when-opened will romain
open until the contents or nearly all the contents of the cistern or tank have been
discharged whereupon the valve will automatically close and remain closed until again
opened by the action of the pull-down lever or other lifting appliance.
Having now particularly described and ascertained the nature of this invention
and in what manner it is to be performed I declare that what I claim is
1. In water closet cisterns or tanks the use or employment of automatic discharge
valve apparatus in which the valve is caused to be opened and retained or held in its
open position until the contents of the cistern or tank have been so far discharged that
the water level has fallen below a certain point whereupon the valve is at liberty to
close in manner substantially as described.
2. The use or employment of automatic discharge valve apparatus in which a valve
lid connected to the ordinary pull down lever of a cistern or other equivalent lifting
appliance is retained or held in its open position by a pivotted float ball lover having
catches or fingers operating substantially as described and shewn in the drawings for
the purpose set forth.