An Improved Double Acting Force Pump.
Year: 1891

page_text: Date of Application, 9th Dec., 1891-Accepted, 16th Jan., 1892
COMPLETE SPECIFICATION.
An Improved Double Acting Force Pump.
We, WILLIAM HENRY KNIGHT, of 78 Claremont Road, Forest Gate, in the
County of Essex, Saccharum Manufacturer, and GEORGE ALBERT MORGAN, of
83 Keppoch Street, Roath, Cardiff, Glamorganshire, South Wales, Superintendent
of the Provident Association of London, 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 our invention has reference to a new and improved double acting force
pump.
The object of the invention is to provide a pump which shall have no valves to
get out of order, and consequently the troubles and delays occasioned by the valves
sticking owing to the introduction of foreign matters into the valve chest is avoided.
Moreover, a pump made in accordance with this our invention is simple in con-
struction, consequently cheap to manufacture, neat in appearance, and not liable to
get out of order.
We now proceed to describe our said invention, reference being bad to the
accompanying drawings and the figures of reference marked thereon, similar figures
representing like parts throughout.
Fig. 1 is a side elevation of our improved pump.
Fig. 2 is a front elevation thereof.
Fig. 3 is a side elevation of the cylinder.
Fig. 4 is a side elevation of one of the cylinder supports, and showing the
cylinder in dotted outline in two positions.
Our improved pump comprises a cylinder 1, which is provided with the usual
covers 2, 3, the former of which is provided with the usual stuffing-box 4 and
gland 5. The cylinder is formed on both sides with flat and true faces 6 in each of
which is formed a circular groove 7. Ports 8 and 9 lead from the groove 7 to the
respective ends of the cylinders shown by dotted lines in Fig. 3.
The cylinder 1 is supported by pins or the like 10 which engage sockets or
bearings 11 in the cylinder supports 12. These supports 12 have circular grooved
ports 13 (Fig. 4) which coincide with grooves or ports of the cylinder. These
ports 13 do not form a complete circle, but are closed at 14. Ports 15 lead to the
suction-pipes 16 and ports 17 lead to delivery pipes 18.
A shaft 19 is mounted in bearings 20 secured to the bed-plate 21, and carries, a
crank 22, a pulley 23, and a fly-wheel 24. The crank is connected by a cross-
head 25 to the piston-rod 26 which has an ordinary piston adapted to reciprocate
within the cylinder.
The delivery pipes 18 may be either carried up and be provided with an air-
cushion chamber 27 and terminate in one delivery pipe 28, as shown, or may lead
separately to different places. The suction pipes 16 may also, if desired, be
carried to different wells or both be united to act together, as will be readily
understood.
The manner in which our improved pump operates is as follows,-reference being
had more particularly to Figs. 3 and 4 of the drawings.
A belt from an engine or other motor imparts rotary motion to the pulley 23,
shaft 19, and crank 22. The crank 22 reciprocates the piston and oscillates the
cylinder. The faces 6 of the cylinder form water-tight but movable joints with the
faces of the cylinder-supports 12. Reference being had to Fig. 4 it will be seen
that when the cylinder is in the position shewn by dotted lines, that the port 9 is in
open communication with the lower part of the port 13. Now supposing the crank
to be turning in the direction of the arrows (Figs. 1 and 4) the piston would be

page_text: moving towards the stuffing-box and water would be drawn in through pipes 16,
ports 15, lower part of port 13, and port 9 (shewn in dotted lines) into the cylinder
at the rear of the piston. Simultaneously the water in front of the piston would be
expelled through port 8, upper part of port 13, and port 17, into delivery pipes 18.
When the crank is in its lowest position (still continuing to rotate in the direction
of the arrows) the cylinder takes the position indicated by lines made up of a dot
and dash. In this position the piston is moving on its return backward stroke and
the port 8 coincides and is open to the lower part of the port 13, so that water is
drawn through the suction pipes 16, ports 15, lower part of port 13, and port 8 into
the cylinder in front of the piston. At the same time the water at the rear of the
piston is expelled through the ports 9, upper part of ports 13, ports 17 into the
delivery pipes 18.
Having now particularly described and ascertained the nature of this our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :
The herein described double acting force pump, comprising the cylinder 1
provided with opposite side faces 6 and ports 7, 8, and 9, said cylinders mounted to
oscillate in cylinder supports 12, provided with ports 13, 15, and 17, also suction
pipes 16, and delivery pipes 18, and said cylinder supports secured to any suitable
bed-plate 21; the shaft 19 mounted in bearings 20 and carrying the crank 22,
pulley 23, and fly-wheel 24, the said crank being connected to the piston by means
of a cross-head 25 and piston-rod 26, all arranged in combination substantially as
and for the purposes hereinbefore described and illustrated in the drawings hereunto
annexed.
Dated this Oth day of Decomshan 100i