Improvements in or relating to Ball-cocks.
Year: 1890

page_text: Date of Application, 1st Feb., 1890
Complete Specification Left, 1st Nov., 1890-Accepted, 6th Dec., 1890
PROVISIONAL SPECIFICATION.
Improvements in or relating to Ball-cocks.
I, JOHN MERRILL of Albany Road, Sheffield, in the County of York, Manufacturer,
do hereby declare the nature of my invention to be as follows:-
My invention relates more particularly to the ball or float and lever of ball cocks,
and refers to an improved means of adjusting the position of the ball or float
vertically.
Hitherto this vertical adjustment has been made by bending the lever which is
usually made of brass, but such a method is not satisfactory.
I therefore propose to construct the end of the lever to which the float or ball is to
he attached with a ring or ferrule or boss having a vertical hole through it provided
with a screwthread, and I construct the ball or float with a pin or rod with a
corresponding screwthread.
To adjust the float it is only necessary to turn the float round in the required
direction, and if desirable, it may be secured in position by a locknut. If a lock-
nut is placed on both sides of the lever, the hole through the boss may be plain.
Instead of a screwthread being used, the rod may be plain, and gripped by
contracting action of the lever end.
Dated this 30th day of January 1890.
it
ROBT. F. DRURY,
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Ball-cocks.
I, JOHN MERRILL of Albany Road, Sheffield, in the County of York, Manufacturer
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 refers more particularly to the lever and float of ball cocks, and
to a means of adjusting the position of the float, other than by the usual trouble-
some method of bending the metal lever or arm.
When it is desired to adjust the position of the float or ball of an ordinary ball
cock to regulate the waterline of the cistern, or for other purposes, it is usual to
do this by forcibly bending the brass arm up or down as the case may be, and in
addition to the risk of breaking the arm (usually a casting) there is the difficulty
of getting it to the exact position required, in fact this method is not satisfactory,
and in large towns may result in a large waste of water.
The annexed sheet of drawings clearly illustrates my invention; similar letters of
reference indicate similar parts in either of the figures.
Both figures represent the lever or arm of a ball cock, and the adjustable float
or ball made according to my invention.
1 construct the lever or arm A, to which the ball or other form of float B is to
be attached with a ring or boss C, the hole through which may be plain, or tapped
with a screw thread; the one shown in Fig. 1. is intended to be provided with a
screw thread.
The float B, is usually in the form of a ball or sphere as shown, but it may be of
other shape if preferred, and I attach to it a length of screw threaded red, or tube, D,
to fit into the ring or boss C; therefore, to adjust the vertical position of the float
in relation to the arm, it is only necessary to turn the float round in the required
direction.

page_text: A locknut placed on the screw D, would enable the two parts to be locked in
position.
If two nuts are used as shown in Fig. 2, the hole in the boss C, may be left with-
out screw threads; or instead of using a screw thread on either of the parts, the
boss C, may be constructed so that it can be contracted upon a plain cylindrical rod
on the float, or be adjustable, and fixed by other equivalent device of a similar
nature.
.
Having now particularly described and ascertained the nature of my inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1-The improvements in the construction of the arm or lever, and float, of ball
cocks, for the purposes of adjustment, substantially as hereinbefore described and
shown.
2-As an improvement relating to ball cocks, making the float adjustable in
relation to the arm, substantially in the manner hereinbefore described, and
illustrated.
3-In relation to ball cocks, the arm or lever for opening and closing the cock
provided with a float having a vertical adjustment.
Dated this 31st day of October 1890.
ROBT. F. DRURY, Fel. Inst. P.A.,
Bank Buildings, George Street, Sheffield, Agent for Applicam.