Year: 1886

page_text: WILLIAM ROSS of 196 Eglinton Street, Glasgow, in the County of Lanark, Brass-
founder do hereby declare the nature of this invention to be as follows:-
The complete valve consists of three main parts viz:-the valve proper, cover,
and seat. The valve proper is formed of a semi-spherical cup of India rubber,
having a flat circular flange extending inwards and outwards. The india rubber
cup may be made cylindrical or conical in form instead of semi-spherical. The
interior of the cup is filled by a weight of lead or other metal, which is held in
place by the inner flange of the cup, and through which is passed a hollow spindle
fixed at the top end with a screwed nut, the bottom end being closed by a button
shaped plug a little larger in diameter than the spindle.
The cover is of lead or other metal, dish shaped, and having its inner edge
bevelled to press closely on the outer flange of the cup, forming a cavity which
enables the valve to be lifted by suction. Into the cover is fixed a solid spindle
which passes down into the hollow spindle of the valve, forming a guide the upper
end being formed into an eye, by which the valve is lifted.
The seat is a simple ring of brass, with a bridge having a circular hole in centre,
through which the hollow spindle of the valve is passed before being fixed to the
weight; the button on the bottom end of the spindle forming a stop to prevent
the valve being thrown from its seat.

page_text: Improvements in Water Waste Preventers.
I WILLIAM Ross of 196 Eglinton Street, Glasgow, in the County of Lanark,
Brassfounder do hereby declare the nature of my invention for "IMPROVEMENTS
IN WATER WASTE PREVENTERS" and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement :-
The complete valve consists of three main parts viz:-the valve proper, cover,
and seat. The valve proper is formed of a hemi-spherical cup of india rubber A
having a flat circular Hauge extending inwards and outwards. The india rubber
cup may be made cylindrical A' in form, as in Fig. 2 or conical A" as in Fig. 3,
instead of bemi-spherical as in Fig. 1. The interior of the cup is filled by a weight B
of lead or other metal, which is held in place by the inner flange of the cup, and
through which is passed a hollow spindle C, the valve and weight being fixed on
the spindle by a screwed nut c. The bottom end of the spindle is closed by a
button shaped plug D, a little larger in diameter than the spindle.
The cover E is of lead or other metal, dish shaped, and having its lower edge
bevelled to press closely on the outer flange of the cup A, so forming a cavity which
enables the valve to be lifted by suction. Into the cover is fixed a solid spindle F,
which passes down into the hollow spindle C, the latter forming a guide. The
upper end of the spindle formed into an eye, by which the valve is lifted.
e is a regulating screw having a tapered slot ou one side, through which the
vacuum in the cavity is broken.
The seat G is a simple ring of brass with a bridge G' having a circular hole in
the centre, through which the lower part of the hollow spindle C is passed; the
button D on the bottom end of the spindle C forming a stop to prevent the valve
being thrown from its seat.
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,
i
1. In apparatus of the class referred to, the improved valve A constructed and
operating substantially as described with reference to the drawings annexed.
2. The arrangement and combination of the parts constituting the water waste
preventer substantially as described with reference to Figs. 1. 2 & 3 of the appended
drawings.