Improved Means of Preventing Waste or Drip from Beer and other Liquid Engines.
Year: 1899

page_text: Date of Application, 23rd Jan., 1899
Complete Specification Left, 23rd Oct., 1899-Accepted, 20th Jan.,
1900
PROVISIONAL SPECIFICATION.
Improved Means of Preventing Waste or Drip from Beer and other
Liquid Engines.
I, WILLIAM OLIVER, of 391E, Mile End Road, London, E., in the County of
Middlesex, Inventor and Manufacturer, do hereby declare the nature of this
invention to be as follows:-
This invention relates to an automatic valve, which I term a compensating
valve, and attachments, applied to pumps of beer or other liquid engines in
such position that they become self-acting for the purpose of preventing waste.
or drip.
The compensating valve is of suitable form and material. It is caused to act
alternately by the weight of the column of liquid in the outlet-pipe and pump-
barrel, assisted by the slight pressure caused by the descent of the pump-rod
with its piston and valve and the down or back stroke filling the compensating
valve with liquid, and the suction or pumping stroke emptying it. Thus by
taking advantage of the position between the pump valves I obtain a perfect
waste-preventing arrangement which is simple and comparatively inexpensive.
According to this invention, at the bottom part of a pump-barrel either in
the side or in the bottom in such position that will not interfere with the action
of the pump-piston with its valve or the lower or suction valve, I bore a hole
through the metal or other material of which the barrel is composed. To this
hole I apply a tap or cock, and to the tap or cock I apply the compensating.
valve. I form the said compensating valve of indiarubber or other suitable
material or combination of materials. It is preferably composed of two flat
pieces cemented together all round except at one end where a piece of tubing is
inserted all so cemented together that the valve has but one entrance and
exit, that through the tube. The compensating valve, being, air and water
tight, when affixed to the tap or cock is inflatable and collapsable by the action.
of the pump and liquid therein.
In cases where the contact of liquid and rubber may be objected to, I provide a
chamber of suitable form, composed of metal or other material, to receive the
liquid instead of passing. it direct into the compensating valve. I apply the
chamber to the tap or cock, and apply the valve by suitable means to the.
chamber. In that case, when the action of the pump forces liquid into the
chamber, the valve inflates with the air forced out and acts as an air-cushion to
regulate the quantity of liquid allowed to pass into the aforesaid chamber.
Instead of applying a cock or tap to the pump-barrel, in cases where it may
be found more suitable (as where the head of liquid in the outlet-pipe is above
the top of the piston-rod) I apply the compensating valve, or the chamber and
valve, to the top of a hollow piston-rod open at both ends and suitably formed.
027

page_text: The hollow piston-rod by this arrangement takes the place of the cock or tap,
and the compensating valve is operated in the same manner and by the same
forces as before mentioned.
Dated this 23rd day of January 1899
BROWNE & Co.,
Agents for Applicant, 9, Warwick Court, W.C.
CORDELE DI MUIFICATION.
Improved Means of Preventing Waste or Drip from Beer and other
Liquid Engines.
I, WILLIAM OLIVER, of 391E, Mile End Road, London, E., in the County of
Middlesex, Inventor and Manufacturer, 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 invention relates to an automatic valve, which I term a compensating
valve, and attachments applied to pumps of beer and other liquid engines, in
such position that they become self-acting for the purpose of preventing drip
or waste on the back stroke of the engine.
The compensating valve is of suitable form and material: It is caused to act
alternately by the weight of the column of liquid in the outlet pipe and pump
barrel, assisted by the slight pressure caused by the descent of the pump-rod
with its piston and valve and the down or back stroke filling the compensating
valve with liquid, and the suction or pumping stroke emptying it. Thus by
taking advantage of the position between the pump valves I obtain a perfect
waste preventing arrangement, as regards the liquor displaced by the pump
rod or back stroke of the engine, which is simple and comparatively inexpensive.
In order that my invention may be better understood I will refer to the draw-
ings accompanying this specification in which Fig. 1 shews partly sectional
elevation of beer engine fitted with my improvements. Fig. 2 partly sectional
elevation of modified arrangement. Figs. 3 4 and 5 shew details hereafter
referred to. The same letters denote the same parts in all the views.
According to this invention, at the bottom part of the pump barrel a, I bore
a hole through the metal or other material of which the barrel is composed.
Over this hole I solder a boss or thickening piece into which I screw a tap or
cock and to this tap or cock I apply the compensating valve d. I form the
compensating valve d of india rubber or other suitable material and preferably
of two flat pieces cemented together all round except at one portion where a
piece of tubing e is inserted, the pieces are so cemented together that the valve
has but one entrance and exit, through the tube e.
The compensating valve being air and water tight, when affixed to the tap
or cock c is inflatable and collapsable by the action of the pump and liquid
therein.
Instead of applying a cock or tap to the pump barrel in cases where it may
be found more suitable (as where the head of liquid in the outlet-pipe is above
the top of the piston rod) I apply the compensating valve, to the top of a hollow
piston-rod open at both ends and suitably formed. The hollow piston rod f by
this arrangement takes the place of the cock or tap c, and the compensating
valve is operated in the same manner and by the same force as before mentioned.
This modification is shewn at Fig. 2.
Figs. 4 and 5 shew a device for lessening the capacity of the compensating

page_text: :
valve d. This device consists of two bars 9 and h between which the com-
pensating valve d is gripped the bars g h being drawn tightly together by means
of thumb screws i by means of this device any desired portion of the valve may
be cut off.
It will be seen that on the down or return stroke of the piston, the liquid
displaced by the piston rod instead of being forced through the outlet pipe, as
is usual, will pass into the compensating valve d. On the up stroke of the
piston this liquid will flow from the valve d (which had been inflated on the
down stroke) and the said valve will collapse.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed I declare that what
I claim is:-
1. Constructing beer engines, substantially as and for the purpose set forth.
2. In beer and other liquid engines, the employment of a collapsable valve,
for the purpose set forth.
BROWNE & Co.,
Agents for the Applicant, 9, Warwick Court, Gray's Inn, London, W.C.