Improvements in Discharge Valve Apparatus for Water Closet Cisterns, Tanks, or other Vessels
Year: 1890

page_text: Date of Application, 22nd Apr., 1890
Complete Specification Left, 22nd Jan., 1891-Accepted, 18th Apr., 1891
PROVISIONAL SPECIFICATION.
Improvements in Discharge Valve Apparatus for Water Closet
Cisterns, Tanks, or other Vessels.
We, JOIN ECKERSLEY, of 3, Bath Street, Preston, in the County of Lancaster
Engineer, THOMAS CALVERT, of 132, Oxford Street, in the same town, Engineer,
and WILLIAM HENRY TIPPING, of 9, Schleswig Street, in the same town,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to discharge valve apparatus of the kind referred to in the
Specification of Letters Patent No. 6784 of 1888 granted to William Lewis
Holland and John Eckersley and has for its its object to simplify the construction
of such apparatus and to make its action more efficient and reliable.
As applied to water closet cisterns one arrangement of the patented apparatus
referred to comprises a weighted valve lid or disc (faced with india-rubber on its
lower side) which when down or in its closed position closes by its own weight the
upper end of the vertical outlet aperture through which the water is discharged.
The weighted valve lid or disc hangs or is suspended by a chain from the inner
arm of the ordinary pull-down lever and immediately above the valve lid or disc
is an elongated slotted link the said link when the disc is raised by the action of
the pull-down lever being pushed over on to a projecting horizontal arın by the
pressure of a finger on a supplementary float ball.lever and being also pushed off
again by the said lever when the water level has fallen below a given point and so
causing the disc to drop and close the outlet aperture.
In practice it is found that the limited length of the supplementary lever and
the size of its float ball practicable in a water closet cistern of ordinary dimensions
have not sufficient power to reliably push the link on to and off the projecting arm
hereinabove mentioned.
Now according to our invention we dispense with the supplementary float ball
and lever and so arrange the horizontal projecting arm on which the slotted link
carrying the valve lid or disc hangs that upon the valve lid or disc being pulled
upwardly the link swings of itself on to the said arm the link being pushed off the
arm by a bent finger projecting downwardly from the ordinary float ball lever which
gradually assumes a lower position as the water level lowers during the discharging
operation as will be well understood.
By this arrangement we are enabled to utilize the greater power or leverage of
the ordinary float ball lever for effecting the closing operation and to simplify the
construction of the apparatus by doing away with the supplementary float ball
lever.
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Discharge Valve Apparatus for Water Closet
Cisterns, Tanks, or other Vessels.
We, JOHN ECKERSLEY, of 3, Bath Street, Preston, in the County of Lancaster,
Engineer, THOMAS CALVERT, of 132, Oxford Street, in the same town, Engineer,
and WILLIAM HENRY TIPPING, of 9, Schleswig Street, in the same town,
Engineer, do hereby declare the nature of this invention, and in what manner the

page_text: same is to be performed, to be particularly described and ascertained in and by
the following statement:-
This invention relates to discharge valve apparatus of the kind referred to in
the Specification of Letters Patent No. 6784 of 1888 granted to William Lewis
Holland and John Eckersley and has for its object to simplify the construction of
such apparatus and to make its action more efficient and reliable.
As applied to water closet cisterns one arrangement of the patented apparatus
referred to comprises a weighted valve lid or disc (faced with india-rubber on its
lower side) which when down or in its closed position closes by its own weight the
upper end of the vertical outlet aperture through which the water is discharged. The
weighted valve lid or disc hangs or is suspended by a chain from the inner arm of
the ordinary pull-down lever and immediately above the valve lid or disc is an
elongated slotted link the said link when the disc is raised by the action of the
pull-down lever being pushed over on to a projecting horizontal arm by the
pressure of a finger on a supplementary float ball lever and being also pushed off
again by the said lever when the water level has fallen below a given point and so
causing the disc to drop and close the outlet aperture.
In practice it is found that the limited length of the supplementary lever and
the size of its float ball practicable in a water closet cistern of ordinary dimensions
have not sufficient power to reliably push the link on to and off the projecting arm
hereinabove mentioned..
Now according to our invention we dispense with the supplementary float ball
and lever and so arrange the horizontal projecting arm on which the slotted
link carrying the valve lid or disc hangs that upon the valve lid or disc being
pulled upwardly the link swings of itself on to the said arm the link being pushed
off the arm by a bent finger projecting downwardly from the ordinary float ball
lever which gradually assumes a lower position as the water level lowers during
the discharging operation as will be well understood.
By this arrangement we are enabled to utilize the greater power or leverage of
the ordinary float ball lever for effecting the closing operation and to simplify the
construction of the apparatus by doing away with the supplementary float ball
lever.
In the accompanying drawings,
Fig. 1 is a side elevation;
Fig. 2 an end elevation; and
Fig. 3 a plan view shewing the method of applying our invention to an ordinary
form of water-closet cistern.
Fig. 4 is another side elevation to further illustrate the action of our improved
apparatus.
In Figs. 1, 2 and 4 so much of the cistern as is included in the said figs. is
shown in section; and at Fig. 2 part of the float-ball is omitted for the sake of
clearness.
A is the cistern, B the float ball lever, C the inlet cock or tap, D the pull-down
lever, and E the overflow outlet-all of which are of the usual kind.
a is the weighted valve lid or disc hanging by means of the chain & and the
slotted link from the inner arm of the pull-down lever D. is the vertical
outlet aperture through which the water is discharged. e is the horizontal arm
projecting from the upright or standard and g is a bent finger attached to and
projecting downwardly from the float ball "lever B. is a supplementary
arm projecting beyond the arme the said arm having a cross bar i at its outer
extremity which answers as a stop to determine the sidewise movement of the
link in one direction and jj are projections or stops on the arm e to determine its
movement in the other.
At Fig. 1 the valve lid a is shewn (in solid lines) in its closed position and (in
broken lines) when the inner end of the pull-down lever D has been raised and the
slotted linke has swung itself on to the arm e in which suspended position the

page_text: valve lid a will remain until the contents of the cistern have been discharged and
the water level lowered as shewn at Fig. 4.
te
At Fig. 2 the valve lid a is shewn in its raised or open position; and Fig. 4
illustrates the relative position of parts when the water level in the cistern has
been so far lowered that the bent finger g has pushed off the link e from the arm e
(that is to say from the position indicated in broken lines at Fig. 1) and has
thereby caused the valve lid a to drop on to its seating and so close the discharge
aperture .
Having now particularly described and ascertained the nature of the said inven-
tion, and in what manner the, same is to be performed, we declare that what we
claim is :-
:―
In discharge valve apparatus of the kind hereinabove described or referred to
the combination or arrangement of parts whereby the valve lid when raised or
lifted is caused to swing on to the projecting arm of a bracket and there to remain
suspended until the water level in the cistern or other vessel in which the discharge
valve apparatus is placed has so far fallen or receded that the lowering or down-
ward movement of the ordinary float ball lever causes (by means of an arm or
finger upon the said lever) the valve lid to be pushed off the said projecting arm
thereby bringing about the closing of the outlet aperture of the valve substantially
as described.
Dated this 22nd day of January 1891
W. LLOYD WISE,
Per F. J. Brougham,
46, Lincoln's Inn Fields, London, W.C., Agent for the Applicants.