An Improved Method for Actuating a Valve for Water Motors.
Year: 1899

page_text: Date of Application, 24th Mar., 1899
Complete Specification Left, 23rd Dec., 1899-Accepted, 10th Feb., 1900
An Improved Method for Actuating a Valve for Water Motors.
We, EDWIN BLAKE SMITH, WILLIAM HENRY ASQUITH, and EDMUND ASQUITH,
all of 2, John Dalton Street, Manchester, in the County of Lancaster, Engineers,
do hereby declare the nature of this invention to be as follows:-
This invention relates to the method of actuating the working valve of a
water motor and is meant to apply particularly to that class of reciprocating
motors for the compression of air.
Our improvement consists in the application of a tappet rod with plate, and
valve rod with springs and collars, to a water and air cylinder in the following
manner.
The air cylinder consists of a single tube having a cap at the bottom to which
is also secured by screwing or other means a water cylinder or tube, working in
the water cylinder is a piston packed with suitable packing material the piston
rod passing up through the air cylinder and forming a piston at the top by means
of a plate and packing rings, the top cap of air cylinder being provided with
air suction and delivery valves.
The valve for actuating the water piston is placed at the bottom of the water
cylinder, our improved method consists in operating this valve automatically
from the movement of the piston in the air cylinder.
Into the plate forming a part of the piston of the air cylinder we screw or
otherwise attach a rod, this rod passes through the bottom cap of the air cylinder
and is provided at its bottom end with a flat tappet plate which is drilled in a
suitable position to received the rod which actuates the water valve, this rod
being guided at one end in the valve chest and at the other by a suitable pro-
jection on the air cylinder. Attached to the valve rod are two collars for
regulating the travel of the valve, and to receive the impact we place a light
coil spring above and below the tappet plate; for the purpose of accelerating the
down stroke of the two pistons we attach a suitable weight to the rod which
passes through the bottom cap of the air cylinder.
An Improved meta
We, EDWIN BLAKE SMITH, WILLIAM HENRY ASQUITH, and EDMUND ASQUITH,
all of 2, John Dalton Street, Manchester, in the County of Lancaster, Mechanical
Engineers, do hereby declare the nature of this invention and in what manner
[Price 8d.1

page_text: the same is to be performed, to be particularly described and ascertained in and
by the following statement:-
Our invention relates to the method of actuating the working valve of a water
motor and is meant to apply particularly to that class of reciprocating motors
for the compression of air.
Of the drawings sent along with this specification Fig. 1 is a sectional elevation
of the main working valve of a water motor together with the water and air
cylinders and valves. Fig. 2 is a sectional elevation showing the auxiliary valve
which works the main valve.
Both Figs. 1 & 2 show our improvement as applied to the compression of air
by means of water under pressure, but we may also apply it to the compression
of any kind of fluid using any suitable fluid as the motive power. The air
cylinder a is provided at the top with suitable delivery valve 6 and suction
valve e placed in a convenient position for the free egress and ingress of the air
or other fluid. To the bottom of the air cylinder a a water cylinder d is attached.
In the water cylinder d is a piston e suitably packed and the piston or tappet
rod f attached to the piston passes up into the air cylinder and is there attached
to the piston in the air cylinder a which is also suitably packed.
On the piston or tappet rod f is a tappet collar 9 for the purpose of striking
the lever h which in turn actuates the valve rod which is guided at the bottom
end in the auxiliary valve box j and at the top by means of a bracket k secured
to the cylinders a or d. On the valve rod i we place two collars / 1 and two
springs m m the former to regulate the travel of the auxiliary valve and the
latter to receive the impact. The valve for operating the water piston is placed
at the bottom of the water cylinder d and is in turn actuated by the auxiliary
valve o which receives its motion automatically from the movement of the piston
or tappet rod f.
The down stroke of the apparatus is accomplished by means of a loaded or
heavy piston or by creating a vacuum under the water piston.
The action of our improved method is as follows: Assuming that the piston
rod with its two pistons and e is falling by gravity or by a created vacuum,
just before the piston ? reaches the bottom of the air cylinder a it strikes the
lever hand carries it downwards, this lever h then gives a downward motion to
the valve rod i by striking on one of the collars the spring m taking any shock
there may be. At the bottom of the valve rod in the auxiliary valve box j is
an auxiliary valve o which when moved downwards allows the water or other
fluid under pressure to pass into the top cylinder 9 which contains a piston r
which is attached by means of a rod s to the main valve n. The pressure of
water on the piston forces the main valve n down, the travel being regulated
by stops &in the ends of the cylinders q & q', this operation allows the water 4
or other fluid to pass into the water cylinder which immediately ascends and
forces the air or other fluid out of the air cylinder a. As the air piston p
arrives at the extremity of its travel the tappet collar 9 strikes the lever h carry-
ing it upwards and at the same time raising the valve rod i and auxiliary valve o
so reversing the water to the lower cylinder q' which causes the main valve n 4
to be reversed and to open the underside of the water piston e to exhaust when
by gravitation or by means of a vacuum cylinder placed in connection with the
underside of piston e, the two pistons e and p again descend and the operation
is continued automatically until the total pressure in the air cylinder balances
that in the water cylinder.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is
司
1. In a motor for compressing air or other fluid the combination of a tappet
rod and tappet collar attached to the moving pistons actuating an auxiliary valve 5
working in conjunction with a main valve by tanning a lever on the unward and

page_text: downward strokes which causes the auxiliary valve rod to take its motion from
that of the piston, all as hereinbefore described and as illustrated by drawings
herewith.
2. In a motor for compressing air or other fluid the combination of an air and
water cylinder, the air cylinder having delivery and suction valves and the water
cylinder main and auxiliary valves with a tappet collar lever and valve rod
provided with smail adjustable collars and springs for actuating the valve of the
water cylinder from the motion of the main pistons, all as herein before described
and as illustrated by drawings herewith.
3. A valve motion for working a water motor all as substantially described and
illustrated herewith.
Dated this 22nd day of December 1899.
EDWIN BLAKE SMITH,
WILLIAM HENRY ASQUITH,
EDMUND ASQUITH.