Improved Hand Ejector for Liquids or Semi-fluids.
Year: 1889

page_text: Date of Application, 27th July, 1889
Complete Specification Left, 24th Apr., 1890-Accepted, 17th May, 1890
PROVISIONAL SPECIFICATION
An Improved Hand Ejector for Liquids or Semi-fluids.
I, THOMAS WILLIAM STONE of 189 Gold Hawk Road, W., in the County of London,
Engineer, do hereby declare the nature of this invention to be as follows:-
My invention relates to an improved apparatus whereby the contents if liquid or
semi-fluid of any cup, bottle, or other vessel may be ejected by hand pressure instead
of by raising the vessel and pouring from it as is usual.
My apparatus consists of a forcing plunger tube, the plunger being operated by
band pressure and sliding in a water tight stuffing box or collar in the said forcing
tube. The plunger presses against a spring whose recoil is made sufficient to lift
the plunger back again after the downward forcing stroke has been completed.
The said forcing tube communicates with a small reservoir at foot which is provided
with a suction valve and may be fitted with a sliding piston or diaphragm.
From the same reservoir at the opposite side of the diaphragm to that of the forcing
tube, rises a delivery pipe, of smaller diameter than the force plunger, another suction
valve being also provided at the foot of this pipe.
Placed in such delivery pipe is a jet nozzlo by which the delivered jet of fluid is
delivered over the mouth of an induction pipe having an open orifice at its foot.
The action of my apparatus is as follows:-
The downward hand pressure on the forcing plunger is communicated to the fluid
in the reservoir either direct or through the intervention of a sliding piston or
diaphragm.
A delivery at high velocity of the fluid is thereby induced in the delivery pipe.
Should a jet of considerable velocity be required it may be thus produced in propor-
tion to the relative areas of the delivery and forcing tubes.
Should however a quantity delivery be desired, the velocity of the first delivery jot
is utilized to induce a further suction through the induction pipe aforesaid, upon the
mass of fluid in which the apparatus is placed so as to induce a large flow of liquid
toward the jet and thus to utilize its speed by increase of quantity.
I keep the dimensions of the forcing and delivery tubes small in diameter so that the
apparatus may be inserted into a narrow necked bottle or can, such as for discharging
wine, beer, or spirits, and oils such as petroleum.
The smaller types of apparatus may be used with the cups of infants' or invalids'
food warmers, to obtain a supply therefrom without having to lift or handle the cup
for_pouring.
The apparatus may also be used with a tea or coffee pot or other similar vessel from
which fluid is to be drawn without handling or pouring from the vessel.
The high speed jet may be employed in garden engines for watering purposes.
Dated this 4th of T-1– 1000
FELL & WILDING
1, Queen Victoria Street, E.C., Agents for the Applicant.
1, Queen Victoria Street, E.C., Agents for the Applicant.
COMPLETE SPECIFICATION.
An Improved Hand Ejector for Liquids or Semi-fluids.
I, THOMAS WILLIAM STONE, of 189, Goldhawk Road, W., in the County of London,
Engineer, do hereby declare the nature of this invention to be particularly described
and ascertained in and by the following statement :-
My invention relates to an improved apparatus whereby the contents (if liquid or
semi-fluid) of any cup, bottle, or other vessel may be ejected by hand prossure instead
of by raising the vessel and pouring the liquid, or semi-fluid from it as is usual.

page_text: In order that this invention may be the better understood I now proceed to
describe the same in relation to the drawings hereunto annexod. Take letters refer
to like parts throughout the drawings.
Figure 1. is a sectional elevation of my ejector as applied to discharge from a ten or
coffee pot.
Figure 2. is a sectional plan of the same.
Figure 3. is a genoral elevation of my ejecting apparatus as applied to a can, or
bottle of wine for decantation.
5
My apparatus consists of a forcing plunger A, fitted with a piston a, working in a
tube C, the plunger being operated by hand pressure and sliding in a water tight 1
stuffing box, or collar-B, in the said forcing tube C.
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The plunger A, works against a spring D, confined between a collar d at the top of
the plunger and the stuffing box B, the recoil of the said spring being made sufficient
to lift the plunger A back again, after the downward forcing stroke has been
completed.
The pumping tube C, is provided at foot with a suction valve E which is
conveniently made in the form of a metal disc, with a ring of perforations through
it resting on the bottom of the pump over a central hole and provided with wings e, to
check its riso.
1
The foot of the external pump case or barrel C, below this valve is perforated with 2
holes F by which communication is given for the entrance of the liquid or semi-fluid
in the cup or vessel, to the interior of the pump barrel C.
At the bottom of the plunger barrel are provided two delivery orifices one G, and
the other H. Through the orifice G is descharged a portion of the contents of the
pump barrel C by the tube passage g to the jet nozzle leading into a delivery pipe K,
the point of the nozzle being placed above a vertical induction tube L.
This induction tubo L is open at the bottom so as to be in direct communication
with the liquid, or semi-fluid contents in the cup, vossel, or bottle.
The other delivery orifice H from the bottom of the pump barrel C leads into̟,a
bent jet nozzle h turning upwards into the said vertical induction tuba.
The action of my apparatus is as follows:―
When the barrel of the forcing pump C, has been filled with the liquid or semi-fluid
from the cup, pot, or vessel, by a preliminary down and recoil up-stroke, on the
second down stroke the contents are doscharged from the two said, orifices H, and G,
the liquid so ejected entering as jets. The one at the foot of the induction pipe L,
and the other in the horizontal part K of the said induction pipe, the latter jet.
issuing across the mouth of the induction pipo L.
The issue of the liquid through these nozzles his at high velocity, and thereby
induces an upward flow of the liquid through the induction pipe, L, K from whence
a total quantity of liquid is discharged greatly in excess of the mere contents of the
forcing barrel C.
This arrangement affords a large quantity of liquid delivered, by, the pressure exerted
which would otherwise be waste in mero velocity of discharge of the fluid.
The normal high velocity of the fluid as delivered from the jets is converted into
larger quantities delivered by, induction at a slower speed.
I may keep the dimensions of the apparatus small in diameter to render it suitable
for admission into narrow necked bottles, or cans, such as for discharging wine, beer,
spirits, or oils such as petroleum, as shown in Figure 4.
The smaller types of apparata are used with cups for infants' or invalids' food-
warmers, to obtain a supply therefrom without having to lift.or.handle the cup, or
warmer for pouring.
5
The apparatus may also be used. with a ten, or coffee pot or other, similar, vessels,
from which fluid is to be drawn without handling or pouring from the vessel.
The apparatus may also be adapted, by suitable modification in dimensions for an
ordinary hand pump or a garden engine for watering purposes.
It is obvious that two of my before described single acting hand ejectors may be
combined, and the plungers connected to reciprocate alternately by a 1 lever or

page_text: other equivalent device so that the flow from a combined delivery pipe would be
constant and the combined apparatus would be in the nature of a double acting pump
for any convenient purpose.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1st. An ejector hand pump consisting of a hand pressed plunger and recoil spring,
a pump casing and suction valve, in combination with an induction pipe provided
with two internal jet nozzles supplied from the forcing pump, substantially as
described.
2nd. In a force pump one or more delivery jet nozzles placed in one or more
convenient positions in an auxiliary induction pipe to utilize the velocity of the
said jets to induce an additional flow of liquid at a slower speed through the said
induction pipe.
3rd. The combination of two single acting ejectors as before described and claimed
connected to a single delivery pipe and with the plungers operated alternately so as
to produce a constant flow of liquid as from a double acting pump.
Dated this 24th day of April 1890.
FELL & WILDING,
1, Queen Victoria Street, E.C., Agents for the Applicant.