Year: 1888

page_text: I, WILLIAM DUNDAS SCOTT-MONCRIEFF of 86 Newman Street, Oxford Street
London W. in the County of Middlesex, Engineer M.I.M.E. do hereby declare the
nature of this invention to be as follows
This Invention has reference to certain improvements in or relating to valve water
closets, the special object of the Invention being to provide an improved means for
making the handle of the closet move in a more easy and perfect manner and also to
provide a means for working the tumbler or Quadrant of the closet out let valve more
smoothly and efficiently.
To this end the Invention consists in providing the weighted lever which actuates
the said valve with supplementary connections so as to communicate a practically
parallel vertical movement to the handle when it is raised or lowered and also in fixing
a spiral or other suitable spring in an improved manner at or near the working joint or
pivot of the said weighted lever so as to bring a horizontal strain upon the tumbler or
quadrant of the discharge valve and so close it in what I believe to be a more direct
and efficient manner than hitherto has been done.
In carrying the Invention into effect, according to a modification possessing con-
siderable advantages as regards both effectiveness and inexpensiveness of manufacture,
I fit or cast a snug or projection upon the iron frame of the closet at the most con-
venient point so as to provide a joint or pivot for a rocking lever below the weighted
lever which actuates the discharge valve. At the further extremity of this rocking
lever I fix a vertical link which pivots at its lower extremity upon the end of the said
rocking lever and has another joint or pivot about its centre working upon the said
weighted lever of the valve, with a third pivot or joint working in connection with
the lower extremity of the closet handle.
The effect of this arrangement is somewhat similar to the parallel motion in a beam-
engine inasmuch as the movement from a vertical parallel direction produced by the
weighted lever working on a centre and describing an are of a circle in its upward
and downward movement is corrected as regards the lower end of the handle rod,
because, as the centre point or pivot of the link moves in one direction out of the true
vertical line the upper pivot to which the handle is attached moves to an approximately

page_text: similar extent in the opposite direction and the result of these two opposite movements
is to produce the approximately parallel motion at the point of connection with the
closet handle which is one of the principal objects of my Invention.
Another part of the improved movement has reference to a new and better means
of adjusting the action of the weighted lever so as to bring a direct horizontal pressure
to bear upon the quadrant or tumbler of the closet outlet-valve. With this object, I
fix a spiral or other suitable spring at the end of the lever beyond its joint or pivot in
such a manner as to give a direct thrust against the pin upon which the lever works
and this has the effect of drawing the quadrant or tumbler towards the said joint or
pivot so as to close the said discharge valve in an improved manner.
Dated this 25th day of February 1888.
Improvements in or relating to Valve Water Closets.
1, WILLIAM DUNDAS SCOTT-MONCRIEFF Engineer of 86 Nowman Street in the
County of Middlesex, 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:-
Invention relates to certain improvements in or relating to the construction of
Valve Water Closet Apparatus & its special object is to improve the arrangement of the
parts thereof & to combine them in such a manner as to allow of the better & more
efficient use and working of the same. The present invention has especial reference to
an improved method for making the handle of the Closet move in a more easy & perfect
manner and also to provide a means for working the Tumbler or quadrant of the closet
outlet valve more smoothly and efficiently and locking same.
The present improvements are illustrated on the accompanying drawing in which
Fig. 1 represents a front elevational view of the apparatus & Fig. 2 a sectional elevation
of the locking apparatus.
In accordance with the present Improvements the lever is projected beyond the
pin or fulcrum 2 so as to form a small cylinder 3 shewn in section upon cylinder 3
shewn in section upon a larger scale in Fig. 2. A spiral 4 spring is inserted in this
cylinder and kept in its place by the split pin 5 so that the other extremity of the
spring thrusts against the pin 2 by means of the small piston 6 thus drawing the valve
quadrant 7 in the direction of the fulcrum 2 so as to lock the outlet valve of the closet
and take up any wear which may take place in the said valve or quadrant at the same
time allowing the apparatus to work more smoothly and efficiently. In order to provide

page_text: for the easier working of the handle 8, instead of connecting the rod 9 direct to the
lever 1 attach the said rod to the link 10 which works upon a pin 11 the lower
extremity being attached to the pin 12 which connects with the horizontal link 13
rocking upon the fixed pin 14. In this manner I obtain a practically true vertical
movement of the point 15 and an improved and easier movement of the rod 9 and the
handle 8.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed I declare that what I
claim is―
1. The herein before described improved method and means of locking the outlet
valve of a valve-closet with a spring 4 fixed in a cylinder 3 and bearing against the
pin 2 the same being combined formed and operated in the improved manner herein-
before described.
2. The use in combination with such parts or as a separate & substantial improve-
ment of link motion for the more vertical movement of the handles of valve water
closets substantially as hereinbefore described.