IMPROVEMENTS IN PUMPS
Year: 1884

page_text: .
JULES ALBERT BERLY, Civil and Electrical Engineer, 3 Deronda Road Herne
Hill do hereby declare the nature of my Invention for IMPROVEMENTS IN
PUMPS, and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:-
"
The improvements which I have introduced in the manufacture of pumps are
related to the description of elevating pumps known as "bellows pumps and
which in the majority of cases replaces the chain pump for the elevation of water
in mansions, works of irrigation, etc.
The said improvements consist in the simple and rational combination of parts
easy of access for inspection, maintenance or repairs.
The pump for which I claim the exclusive property consists, in principle, of a
rectangular casing made of two longitudinal or side walls to which are secured two
transversal sides or walls and one cover.
The piston, which moves. between these sides or walls is provided with packing.
at one end only and has a central opening in which a hinged or suction valve is
lodged.
.
At the top of the casing is placed. another hinge valve opening from inside the
pump outside and acting as a check valve.
When the piston is lowered; the pump being immersed in the water which it is
intended to elevate, the suction valve opens and let the water in the pump which
it fills.
When the piston is raised, the water previously admitted in the pump is forced,
through the check valve, in the delivery pipe and retained there, by the action of
the said check valve, during the following downward motion of the piston..
-
A new volume of water is thus admitted in the pump at each downstroke and
forced into the delivery pipe at each upstroke of the piston.
The alternating motion of the piston is given by means of a lever, a crank or a
wheel, and transmitted through a suitable gearing to the piston itself by means of
a lever attached to it.
-
By coupling two such pumps together it is possible to obtain a very regular
supply.

page_text: A reference to the Drawings will enable the description to
understood.
Fig. 1 is a profile view of the pump.
Mully
Fig. 2 is a longitudinal and vertical section through line A B of Plan Fig. 4.
Fig. 3 is an elevation.
Fig. 4 is a plan.
Fig. 5 is a bottom view of the piston and
Fig. 6 is a top view of the same.
The body or casing of the pump is made of two rectangular walls c. c. provided
with bottom flanges P P so as to allow the pump to be fixed. to its foundation,
and with side flanges to which the plane side c² at the back and the curved side c³
in front are secured. b is the cover, having in its center a circular opening over
which is mounted an intermediary valve plate a..
-
The check valve d and the force pipe e are fixed to this plate, as shewn.
The piston is formed of a rectangular plate f cast together with two axles f. f².
(Figs. 5 & 6) and these two axles are mounted in the lateral sides C. C¹. of the
casing of the pump.
In the center of this piston is fixed the suction valve g which is surrounded by
a plate h. At one end of the latter is attached a packing of leather or any other
suitable material and which forms a joint with the curved side C³ of the casing
of the pump.
Another similar piece of leather or other suitable material is attached at the
other end of the plate h, inj (Fig. 2) at the center of oscillation of the piston and
so as to completely shut from the outside the room in which the forcing of the
water takes place.
kis the lever fixed under the piston. It is connected by means of a rod of a
convenient length to a lever or some cranks or wheels placed at the surface, and
from which it receives its alternating angular motion.
Z is a stop which limits the stroke of the piston.
Two such pumps can be coupled and worked from a double crank mechanism in
order to obtain a more regular delivery of water.
.
It will be readily understood from the Drawings that all the parts of the pump
are easy of access for the various purposes of inspection, maintenance or repairs,
and that such a pump is of a very simple description and consequently cheap. and
not liable to get out of order; also that the working of the pump requires very
little power.
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:
The special arrangement of elevating pumps
known as "bellows pumps" as
described and illustrated by me, and in which the various parts are so combined
that the pump is of extreme simplicity and cheapness, requires very little power
to work and every part of it is very easy of access for the purposes of inspection,
maintenance or repairs, and as substantially described and illustrated in the
accompanying Specification and Drawings.
19
1004