in valve apparatus for water closets
Year: 1886

page_text: I, ROBERT MASON Junior of 19 Monkland Street Glasgow, in the County of
Lanark, Plumber, 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:-
This invention which relates to improvements in valve apparatus for water
closets is especially applicable to pan water closets and it has for its object to.
dispense with the cistern usually employed to contain the flushing water.
On the accompanying drawings fig. 1 is a vertical section and fig. 2 a plan of an
ordinary pan water closet having the improved valve apparatus constituting my
said invention applied thereto fig. 3 being an elevation of the said valve apparatus
at right angles to fig. 1.
As shown by these figures the lever A, to which the pan B, of the closet is
connected and by which the pan is operated in the usual way is extended beyond
the point C, where it is centred or fulcrumed in the shears or bracket D, a vertical
rod E, being connected at its lower end by a pin to the said extended part of the
lever. The upper extremity of the rod E, is bent at right angles as seen at fig. 1
and it bears upon one end of a lever F, which is fulcrumed at G, figs. 2 and 3, in a
jaw or bracket made on the cover or upper part of a valve box or vessel H, which
may be supported on the container I, by a bracket J, as shown or otherwise as in
the situation may be most convenient.
The valve box H has a branch K connected to a water supply pipe led direct
from the main so as to dispense with a cistern or it may be connected to a cistern
in cases where that is deemed advisable and it has also a second branch L, leading
to the flushing horn or branch M, of the water closet basin, both branches K and L,
being preferably near the hottom of the valve box. The inner end of the inlet
branch K is closed by a valve consisting of a rectangular or other shaped plug the
face of which next to the inlet is recessed to receive a piece of india rubber,
leather or like material the said material when the valve is closed bearing against
the end of the inlet branch so as to make it water tight. The valve is connected
by a rod or spindle N, to the lever F, and the said lever has at its end opposite to
that acted on by the cranked rod E, an adjustable weight O, whilst between its
fulcrum G, and the rod E, the lever has one end of a spring P, attached to it the
other extremity of the said spring being secured to a rod or bracket R projecting
from the side of the valve box H,

page_text: The effect of this arrangement is that when the spear S, is pulled up so as to empty
the contents of the pan B, the cranked rod E acting on the extremity of the lever F
depresses the said extremity and through the spindle N, raises the valve plug from
opposite the end of the inlet branch K thereby permitting water to flow through
the box and flush the closet. When the spear S is again lowered to the position
shown the cranked rod E moves away from the lever which is forced back into
the position indicated so as to lower the valve and close the inlet K. by the com-
bined action of the spring P, and weight O, the spring having been compressed by
the downward pull of the rod E. The difference in time between the raising of
the cranked arm of the rod E and the forcing of the end of the lever F up into
contact with it is sufficient before the valve closes to permit of the requisite
quantity of water to constitute the after flush and seal for the pan B, to flow
through the inlet K. before the said inlet is closed by the valve.
In lieu of employing both a weight O, and spring P, as set forth one of them
may be dispensed with and instead of the inlet K being in the side of the valve
box H as set forth the said inlet may be from the bottom of the valve box and be
closed by a clack, plug or other convenient valve connected to the spindle N.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is
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1. The general arrangement and combination of parts constituting the improved
valve apparatus for water closets substantially as herein before described with
reference to the drawings annexed.
2. In valve apparatus for water closets the combination of the lever A, cranked
rod E, lever F with its accessories valve and valve spindle N whereby the admission
and cut off of flushing and after flushing water to the basin of the closet is effected
substantially as described.
3. In conjunction with water closets a valve box and valve adapted substantially
as set forth to admit flushing water direct from the main or service pipe and
whereby the use of a cistern is or may be dispensed with.
Dated this Fourth day of May 1886.
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CRUIKSHANK & FAIRWEATHER,
Agents.