An Improved Double Acting Lift and Force Pump.
Year: 1893

page_text: Date of Application, 20th June, 1893
Complete Specification Left, 20th Mar., 1894-Accepted, 16th June, 1894
An Improved Double Acting Lift and Force Pump.
We, FREDRIC WILLANS, and JOHN FREDRIC WILLANS, of 1 Spring Terrace,
Rhosddu, Wrexham, Engineers, do hereby declare the nature of this invention to
be as follows:-
In our improved pump the "lift" is obtained by suction and the "force" by
steam.
Upon a hollow base communicating with the liquid or liquids to be raised, one or
more pairs of upright tapering columns are erected. The hollow base is divided
into two or more separate parts one column communicating with each part. The
suction valves are single or combined valves furnished with air vessels on the top
and fitted to the base or cast solid with the pump. The combined valve can serve
for any number of columns having one or more suction pipes to feed the several
pumps. Each pair of columns is connected at the top preferably by a horizontal
tube, which tube communicates with a pipe through which a steam jet is
introduced. On each side of the steam pipe a valve seating is made. One
valve which may be of the ordinary mushroom reciprocates between the two
seatings.
The steam presses upon the surface of water in the column and drives the
whole of the liquid in the column through the delivery valve and a vacuum being
thus formed the liquid rushes up from the chamber at the base through the suction
valve, and this action being alternately produced in each column the delivery is
almost continuous from each pair of columns.
The delivery valve or valves are fitted upou the base and are made single or in
one combined casting with air vessels and one or more delivery pipes.
Dated this 20th day of June 1893.
W. H. MUNNS,
Agent for Applicants.
COMPLETE SPECIFICATION.
An Improved Double Acting Lift and Force Pump.
We FREDRIC WILLANS and JOHN FREDRIC WILLANS of 1 Spring Terrace,
Rhosddu, Wrexham, Engineers, 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 :-
"
In our improved pump the "lift" is obtained by suction and the "force by
steam.
Upon a hollow base communicating with the liquid or liquids to be raised, one
or more pairs of upright tapering columns are erected or cast solid on the base.
The hollow base is divided into two or more separate parts, one column com-
municating with each part. The suction valves are single or combined valves.
Air vessels may be provided as is customary in force pumps. The single or
combined valves can serve for any number of columns having one or more suction
pipes to feed the several pumps. Each pair of columns is connected at the top
preferably by a horizontal tube which tube communicates with a pipe through
which a steam jet is introduced. On each side of the steam pipe a valve seating
5271

page_text: is made. One valve which may be of the ordinary mushroom type or other make
reciprocates between the two seatings.
To show clearly how our invention is carried out we furnish drawings in which
the same parts are represented by the same letters throughout.
Fig. 1 is external front view of the pump with internal working parts indicated
by dotted lines. Fig. 2 is external side view.
A is suction pipe. B is base upon which tapering columns E are erected.
C is suction valve on scating C¹, D are air vessels, F is cross tube connecting
columns E. G is steam valve in the same with seatings G', G'. H is steam pipe,
..J is delivery valve on seating J. K is delivery pipe.
The steam from pipe H presses upon the liquid in one of the columns E and
drives the whole of the liquid in the said column E through delivery valve J
and a vacuum being thus formed the liquid rushes up through the suction
valve C. By means of reciprocating valve G this action is alternately produced
in each column so that the delivery is almost continuous in each pair of columns.
The valve G reciprocates by the power of the vacuum in the cavity of pump
allowing sufficient steam to pass to act on the surface of liquid below and force it
through the delivery valve every alternate stroke.
Figs. 3 & 4 show modifications of the position of the suction valves but in other
respects the mechanism is the same as that already described.
Fig. 3 shows an elevation partly in section of an arrangement in which the loose
suction valve C is mounted in the base B.
Fig. 4 shows similarly the suction valve C fitted inside the base B, the side of
the base being cut off at K, K, to show this arrangement.
The base B can be extended to any length and as many pairs of tapering columns
attached to it as would be found necessary. Each pair of columns forms a double
pump. The whole of the pumps upon the base are supplied from one steam pipe H
with separate taps for each pair of columns and with one suction pipe A for the
whole base B or a separate suction pipe is used to each pair of columns or to each
single column as may be thought necessary.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. A double or single acting lift and force pump in which the suction pipe
communicates with a hollow divided base which communicates through suction
valves to one or more pairs of tapering columns from which columus liquid is
forced alternately by the action of steam through delivery valves.
2. In a pump covered by Claim 1 the arrangement of loose suction valves
attached to base substantially as shown in Fig. 3.
3. In a pump covered by Claim 1 the arrangement of suction valves fitted inside
the base substantially as shown in Fig. 4.
Dated this 20th day of March 1894.
W. H. MUNNS,
Agent for Applicants.