Improvement in Flexible Valves.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvement in Flexible Valves.
CHRISTIAN FREDERICK ADOLPH BELL, 48, All Saints Street, Hull, Yorkshire,
Marine Engineer, do hereby declare the nature of this invention to be as
follows:
The seat of this valve, is as ordinary in shape, square or round, as the case
may be, but it's orifice has a clear way, not being obstructed with grate or
bars across, this, is covered with a flexible valve, (without joint) which has a
metallic bar across one edge of it, by which the valve, with screws, (through
bar & valve) is firmly held to one edge of the seat, leaving the other part, owing
to it's flexibility, to regulate it's own lift and to perform its duty in a regular
manner.
Dated this 24th day of August 1898.
I, CHRISTIAN FREDERICK ADOLPH BELL, 48, All Saints Street, Hull, Marine
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:-
My invention relates more especially to pumps that deal with water charged
with sand, ashes, or other solid matter, which is liable to get between the valve
faces, and thus prevent the proper working of the pump. The valve, may be
of rubber; or any other flexible material, there are no bars across in valve seat,
in the way of the aperture, through which the water passes, thus, leaving at
all times a clear passage.
The invention is illustrated by the accompanying plan and elevation in which
Figures 1 and 2 are sections and elevations of parts to be fixed in the pump
valve box, the same letters or numerals indicate the parts in each view.
Fig. 3, is a sectional view.
A
The seat A, Fig. 1 may be of brass or any other suitable material not liable
to corrosion, and of any shape or form best adapted to the circumstances.
sectional view is shown in Fig. 3, generally a square frame (like a small picture
frame) without cross bars or any other obstacle across the orifice. Fig. 1, shows
how the same is secured to the seat A, preferably at the upper part, by screws C
through the cross bar D, resting on the valve B, and thus acting in the place of
a hinge, on which the valve 13, works. There are no stops for adjusting the

page_text: "lift" of the valve, for, owing to its flexible nature, it is self adjusting, and
returns to it's seat in the usual manner. The valves are adaptable to any kind
of lift pump, and are simply a square frame, with a square orifice, covered with
a flexible flap, fastened across one end of the frame, to allow for it's working.
Having now particularly described & ascertained the nature of my said in-
vention, and in what manner the same is to be performed, I have to state that I
do not restrict myself to the precise details herein described and illustrated, but
that, what I believe to be novel and original and claim is:-
1. A plain valve without hinges or the like to get out of order.
2. A valve, which would not be kept off its face upon which it works by
any small solid matter getting between valve & face, as it would be pressed into
the valve, and removed by the next stroke.
3) A valve, which owing to its flexible nature would act as a cushion, in
case of discharge pipes becoming choked and would never allow a pipe to burst
and under ordinary conditions be allways tight.
Dated this 19th day of August 1899.
CHRISTIAN FREDERICK ADOLPH BELL.