IMPROVEMENTS IN FORCE-PUMPS
Year: 1885

page_text: I, MICHAEL GUGGENHEIM, of 12 Southwark Street, in the County of Surrey,
Merchant, do hereby declare the nature of my invention for "IMPROVEMENTS IN
FORCE-PUMPS" and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement :—
0
This invention relates to force-pumps of that class known as oscillating pumps,
and is designed to simplify the construction and increase the efficiency of the same.
In the accompanying drawing
Figure 1 is a vertical central section of one of my improved pumps.
Figure 2 is a section on the line x, x, Figure 1.
Figure 3 is a plan showing part of the induction chamber and the suction-
valves, and
Figure 4 is a plan of an oscillating plate or diaphragm which carries the delivery
valves as hereinafter described.
a indicates a chamber or casing, which has the form of a short hollow cylinder
closed at one end. b is a cover, which is secured to the said cylinder or chamber
by bolts and nuts as shewn, or otherwise. c is the induction pipe or passage, and
d the eduction or delivery pipe or passage. e is a removable bridge-piece or
partition, which is fitted in the cylinder or chamber a above the pipe c, and is held
in place by a pin or stud f (fixed in the end of the cylinder a and fitting into a
hole in the partition e) and by the cover b. If desired, however, the said partition
may be secured in any other convenient manner so that it can be readily removed.
from the cylinder. This partition is provided with apertures e¹, e, and, together
with the cylinder a, forms the induction chamber g.
h, h' are the suction-valves, which are ordinary flap-valves hinged or pivotted
ath to the partition e, and arranged to close the apertures e¹, e².
is a plate or diaphragm, which is fitted in the cylinder a and is fixed upon a
shaft j, whereby oscillatory motion can be imparted to it for the purpose herein-.
after specified. This diaphragm is provided with apertures i¹, i².
k, kare the delivery valves, which are ordinary flap-valves hinged or pivotted:
at k to the oscillating diaphragm i, and arranged to close the apertures 21, 22.
The shaft extends through the cover b, which is provided with a stuffing-box 7,
to ensure a tight joint around the said shaft. If desired, the said shaft may also.
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page_text: "
extend through the closed end of the cylinder, which would, in such case, be
provided with a suitable stuffing-box.
A handle m is fixed upon the shaft j to enable it to be operated by hand. But,
in some cases, I provide for imparting oscillatory motion to the said shaft in any
suitable manner from a steam-engine or other motor.
I prefer to make the shaftj with a square portion to receive the handle m, and
to provide it with a screw-nut j' for retaining the handle thereon. By these means
I provide for placing and securing the said handle upon the shaft in such a manner
that it will extend either upwards or downwards therefrom and can be worked
horizontally to and fro, or so that it will extend in either direction horizontally and
can be worked up and down to operate the pump.
The bore of the cylinder a is shown slightly taper, but it is, in some cases, made
parallel the partition e and oscillating diaphragm i are made of such shape that
their edges are in close contact with the inner circumferential surface and with the
end of the said cylinder. The cover b is made with a projecting portion 6' which
enters the cylinder a and bears against the partition e and diaphragm i without,
impeding the motion of the latter.
The operation of the improved pump is as follows, viz:-The valves are shown
in Figure 1 in the positions which they occupy when the plate or diaphragm i is
being moved in the direction indicated by the arrow, the valves h, k¹ being closed
and the valves h¹, k open. Under these conditions, assuming the pump to have
been operated until it has commenced to deliver water, then, by reason of the
partial vacuum created between the diaphragm i and' the valve h¹, water is forced
by atmospheric pressure from the induction chamber g through the aperture e².
At the same time any water between the valve h and the diaphragm i will-be
forced through the aperture ¹, and any water between the valve and the
eduction pipe d will be forced up the said pipe. When the motion of the
diaphragm is reversed, the valves h', e, are closed and the valves h, k' are opened,.
so that water is forced from the induction chamber g through the aperture e¹; and,
at the same time, the water between the valve h¹ and the diaphragm i is forced
through the aperture 2, and the water between the valve and the eduction pipe d
is forced up the said pipe. An almost continuous stream of water can thus be
delivered by the said pump. I sometimes arrange an air-vessel on, the delivery
pipe to provide for enabling the pump to discharge water in a continuous stream.
The removable partition e can, if desired,' be dispensed with and the suction-
valves arranged in any suitable manner upon a fixed plate or partition separating
the interior of the cylinder from the induction pipe or passage. But I prefer to
construct the improved pump in the manner shown in the drawing, as I am
thereby enabled to very readily take the said pump to pieces for cleaning or repairs
and put it together again. For example, should the valves become choked or be
· rendered inactive by mud or other impurities in the water, the cover b and
diaphragm can be removed and the partition e lifted out; and, after cleaning
the valves, the said parts can be replaced; and these operations can be effected
very rapidly.
My improved pump affords the following advantages, amongst others, viz:-The
cost of its manufacture is very small. It requires very little power to work it, as
compared with the pumps heretofore employed, the friction being reduced to a
minimum. It can be easily taken to pieces and put together again by an unskilled
person. Moreover the valves can, without much trouble, be taken out and new
ones substituted therefor.
Having now particularly described and ascertained the nature of the said
invention, and in what manner the same is to be performed, as communicated to
me by my foreign correspondent, I declare that what I claim is
First. A force-pump wherein an oscillating plate or diaphragm carrying the
delivery valves is arranged substantially as above described within a cylindrical, or

page_text: nearly cylindrical, chamber to operate in combination with suction-valves for the
purpose specified.
Second. In the said pump, the employment of a partition for supporting the
suction-valves, and separating the interior of the said chamber from the induction
pipe or passage, which partition is so constructed and arranged that it can be
readily removed, substantially as, and for the purpose, set forth.
Third. The improved force-pump consisting of the parts constructed and com-
bined substantially as described with reference to the accompanying drawing and
operating as above set forth.