Improvements in or relating to Valve Water Closets.
Year: 1889

page_text: Date of Application, 11th Nov., 1889
Complete Specification Left, 9th Aug., 1890—Accepted, 13th Sept., 1890
PROVISIONAL SPECIFICATION.
Improvements in or relating to Valve Water Closets.
I, WILLIAM DUNDAS SCOTT-MONCRIEFF of 86 Newman Street London W.
Engineer do hereby declare the nature of this invention to be as follows :-
This invention has for its special object an improvement in the method of opening
and closing the basin valvo of valve water-closets by which the motion of the lover of
the handle is communicated to the quadrant or tumbler which moves the basin valve
in such a manner that the quadrant may be horizontal when the the valve is closed and
the pin connected to the levor sufficiently far out from the centre of the quadrant to
insure the maximum amount of leverage where it is most wanted at the same time
the motion of the lever through less than 90° being sufficient by means of the
improvements which are the subject of this application to make the quadrant travel
through an are of fully 90° which is required in order to give the necessary opening to
the basin valve. By a modification which possesses advantages on account of its
efficiency and simplicity I connect a link to the weighted lever vertically to the pin
of the quadrant when it is horizontal and the basin valve closed and at the same time
I connect another and longer link to the quadrant pin this latter link being made to
pivot upon a fixed point above and to one side of the quadrant pin the link being
inclined to the horizontal line of the quadrant at an angle of about 35°. By this
improved apparatus the pin which actuates the quadrant is thrust towards the centre
upon which the quadrant moves in the act of raising the lever by the handle and in
this way a rapid tumbling movement is communicated to the quadrant and conversley
when the handle and lever are lowered the quadrant pin with its suspended link
attached to the lover is drawn rapidly away from the centre of movement of the
quadrant so that the greatest amount of leverage and a direct closure of the valve by
means of the weighted lever is obtained in a simple improved and efficient manner
obviating the necessity for having any lateral frictional strain upon the quadrant.
Date 8th day of Novombon 1980
W. D. SCOTT-MONCRIEFF.
COMPLETE SPECIFICATION.
Improvements in or relating to Valve Water Closets.
I, WILLIAM DUNDAS SCOTT-MONCKIEFF of 86 Newman Street London W.,
Engineer, 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 has for its especial object an improved method of opening and
shutting the valve of valve water-closets, by which the motion of the lever of the
handle is communicated to the quadrant or tumbler in such a manner that the
maximum amount of leverage is obtained when the handle is depressed, and at
the same time a sufficient amount of movement is given to the quadrant to carry it
through an angle of 90 degrees, although the travel of the lever in connection with the
handle may be considerably less.
:-
The improved arrangement is illustrated in the accompanying drawing
1, represents the valve spindle, to which the notion through 90 degrees of a circle is
required to be given 2, is the quadrant or tumbler; 3, is a pin working through a
sliding block in the slot as shewn; 4, is a link working on the pin 3 at one end and
on a pivot 5 fixed to the closet framing at its upper extremity; 6, is another link,
also working on the pin of the sliding block 3 at one end, and upon a pin 7 attached
to the lever 8 as shewn.

page_text: The effect of this arrangement is to bring out the sliding block in the quadrant 2
so as to give the weight 9 its maximum of leaverage on the tumbler when the handle
is depressed, and the effect of this arrangement when the handle is raised is to push
the sliding block and pin 3 towards the valve spindle 1 so that the required movement
of the valve through an angle of 90 degrees is obtained by raising the handle through
an arc of a circle considerably less than the quarter circle required for the proper
discharge of the closet valve.
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 :
The general arrangement and combination of the parts hereinbefore described, and
the application thereof for the purpose stated.
Dated this 8th day of August 1890.
W. D. SCOTT-MONCRIEFF.