Improvements in Coin-freed Apparatus for the Automatic Sale of Liquids.
Year: 1894

page_text: Date of Application, 7th Mar., 1894
Complete Specification Left, 15th Sept., 1894-Accepted, 1st Dec., 1894
PROVISIONAL SPECIFICATION.
Improvements in Coin-freed Apparatus for the Automatic Sale of
Liquids.
We, ROBERT ALEXANDER SLOAN and JOHN EDWARD LLOYD BARNES,
both of 26 Castle Street, Liverpool in the County of Lancaster, Consulting
Engineers, do hereby declare the nature of this invention to be as follows:-
Our present invention has reference to coin-freed apparatus for the automatic
sale of liquids, and it is specially applicable in cases where the liquid sold consists
of two or more liquids which are mixed for each purchaser at the time of sale.
For example, in apparatus constructed according to our invention, a cupful of hot
coffee or bovril may be freshly prepared for each purchaser, by mixing hot water
and coffee essence containing sugar and milk, or hot water and bovril.
In most cases, the liquid delivered consists mainly of water to which a small
quantity of the appropriate essence or other liquid is added, and it has been found
by experience that any valve arrangement for measuring and delivering the
essence at the proper time is unsatisfactory, and especially so when, as is generally
the case, the essence is viscous and the quantity to be delivered small.
According to our invention, we dispense with valves for this purpose, and
measure and deliver the essence by means of a spoon or cup which dips into a tank
of essence and withdraws the proper quantity; the essence is mixed with, and
the cup cleansed by the water in a manner which will be more fully described
hereinafter.
We prefer to construct the apparatus so that it may be quite automatic, that is
to say the purchaser has nothing to do but to put the coin in the slot, whereupon
the mixed liquid will be delivered without the necessity of his operating any
handles or drawers. It will be seen therefore, taking for example a machine
designed to supply say hot coffee, that a proper quantity of water has to be
measured and delivered, the proper quantity of coffee essence (containing sugar
and milk) measured, and that these have then to be mixed and the mixture
delivered from the machine; we find the energy obtainable from the descending
coin is insufficient to effectually operate the mechanism necessary to accomplish the
foregoing, and we prefer therefore to store the water in a tank as high up in the
machine as possible, and to make use of the energy yielded by each cupful of
water as it descends from the tank to the delivery spout of the machine, and to
make use of the coin merely to liberate either the water or the mechanism operated
by the water.
The energy of the descending water may be used to operate the mechanism
either directly, by causing the coin to operate a cock or syphon which allows the
water to flow into a pivoted cup which, as it descends under the weight of water,
operates the essence cup mechanism and, when full, cuts off the water supply and
finally empties itself either by tipping over or by charging a discharge syphon; or
indirectly by means of two articulated floats, the buoyancy of each float being
alternately altered by the liberated water. In the latter arrangement, two tanks
are provided, in each of which a float is located; the floats are balanced and are
connected to opposite ends of a lever fulcrummed at its centre; a valve is provided
which at each operation of the machine alternately fills the one tank and empties
the other, and a detent is arranged to engage with the float lever at each end of
its stroke. It will be seen that if one tank (A) is full and the other (B) is empty,
the float lever if free would turn so that the float in A would be up and that in B
down; if however, the float lever be moved so that the float in A is down and

page_text: "
that in B up, and held there by the detent, it will be urged from this position by
an upward pressure of the submerged float due to the displaced water, and further
that if the inserted coin be allowed to free the detent, the float lever will move to
the opposite end of the stroke in accordance with this pressure.
This movement is made to operate the essence cup and also to operate the valve,
so that the latter allows the tank A to be emptied and B to be filled, the detent
in the meantime engaging with the float lever and holding it at the opposite end
of its stroke; the tank A will now be empty, B full, the float in A will be up
and that in B down, and on the next coin liberating the detent, the action will be
repeated.
The tanks may be either open or closed (that is closed with the exception of a
small bore air pipe to act as a vent); we prefer the latter form as it enables us to
obtain a greater portion of the energy of the falling water than the former.
Assuming that closed tanks are used the arrangement is as follows;-The floats
are made preferably heavier than the weight of water displaced, so that their
connections to the lever are always in tension; the tanks are circular in cross
section, and the floats are also circular in cross section and there is but a small
lateral clearance between the floats and the tanks.
The valve, whose function is to alternately fill one tank and empty the other,
may be of any well known form adapted (after the manner of an ordinary slide
valve) to alternately connect two ports, one to supply and the other to exhaust.
We prefer however, to use a special form of valve to provide against the
contingency of the float lever moving so slowly over that the full tank empties
and the empty tank fills to such an extent as to arrest the motion of the floats
before the end of the stroke, in which case, of course the machine would become
inoperative.
We overcome this by allowing the float lever to move beyond the position in
which the detent engages to arrest its return, and by giving the valve a small
stroke or by operating it by means of a tipping weight which is raised during the
first part of the float lever stroke and which operates the valve as it descends.
We thus arrange for the valve to be actually operated after the engagement of
the detent. We prefer to make the valve a circular slide valve having lateral
ports connected to the tanks, a supply port and a central exhaust port in which the
spindle works.
We carry the cup which measures the essence etc., on a pivoted spindle
operated by the float lever, so that in one position it is immersed in the essence
and in the other position it is just under the exhaust spout of the valve, so that
as the water flows out of the latter, it mixes with the essence and washes the cup.
We prefer to provide two cups carried from the one spindle and dipping into tanks
laterally arranged with reference to the exhaust spout, under which the cups come
alternately, and we provide a deflector to prevent the water which washes the one
cup from flowing into the tank in which the other cup is submerged we also, if
necessary provide a deflector in the cup to direct the stream of water to the best
advantage for washing the cup.
When a pivoted descending cup is used to utilise the energy of the descending
water as described, it operates the essence cup and brings the latter under the
spout out of which the water flows.
A balance weight may be attached to the float lever above its pivot to further
assist the action. All the working parts are as far as possible balanced so as to
reduce the energy required to operate the machine. Any suitable mechanism may
be used to enable the coin as it descends to release the detent.
In some cases we prefer to substitute for the tanks and floats described, two
closed cups carried on opposite ends of a lever fulcrummed at its centre; in other
respects the arrangement is similar to that described in connection with floats and
tanks excepting that the valve now alternately fills and empties the cups, the full
cup being kept in top position till the detent is released. In this form it is found
advantageous to provide each cup with an exhaust valve operated as the cup

page_text: descends and to arrange for the main valve to regulate the admission only, or to
provide each cup with both exhaust and admission valves.
The machine may be adapted to deliver a paper cup in which the liquid may be
held, by arranging a suitable tipping shoot operated by the coin which deflects the
first of two coins to operate a goods delivery mechanism.
Dated this 6th day of March 1891
SLOAN & LLOYD BARNES,
Castle Chambers, 26, Castle Street, Liverpool,
Agents for the Applicants.
Improvements in Coin-freed Apparatus for the Automatic Sale of
Liquids.
We, ROBERT ALEXANDER SLOAN and JOHN EDWARD LLOYD BARNES,
both of 26 Castle Street, Liverpool in the County of Lancaster, Consulting
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 :-
Our present invention has reference to coin-freed apparatus for the automatic
sale of liquids, and it is specially applicable in cases where the liquid sold consists
of two or more liquids which are mixed for each purchaser at the time of sale.
For example, in apparatus constructed according to our invention, a cupful of hot
coffee or beef essence may be freshly prepared for each purchaser, by mixing hot
water and coffee essence containing sugar and milk, or hot water and beef essence.
In most cases, the liquid delivered consists mainly of water to which a small
quantity of the appropriate essence or other liquid is added, and it has been found
by experience that any valve arrangement for measuring and delivering the essence
at the proper time is unsatisfactory, and especially so when, as is generally the
case, the essence is viscous and the quantity to be delivered small.
According to our invention, we dispense with valves for this purpose, and
measure and deliver the essence by means of a spoon or cup which dips into a tank
of essence and withdraws the proper quantity; the essence is mixed with, and the
spoon cleansed by the water in a manner, which will be more fully described
hereinafter.
We prefer to construct the apparatus so that it may be quite automatic, that
is to say the purchaser has nothing to do but to put the coin in the slot, whereupon
the mixed liquid will be delivered without the necessity of his operating any
handles or drawers. It will be seen therefore, taking for example a machine
designed to supply say hot coffee, that a proper quantity of water has to be
measured and delivered, the proper quantity of coffee essence (containing sugar
and milk) measured, and that these have then to be mixed and the mixture
delivered from the machine; we find the energy obtainable from the descending
coin is insufficient to effectually operate the mechanism necessary to accomplish the
foregoing, and we prefer therefore to store the water in a cistern as high up in
the machine as possible, and to make use of the energy yielded by each cupful
of water as it descends from the cistern to the delivery spout of the machine, and
to make use of the coin merely to liberate either the water or the mechanism operated
by the water.
The energy of the descending water may be used to operate the mechanism
either indirectly by means of a pair of articulated floats immersed in a
pair of
tanks, the buoyancy of each float being alternately altered by the liberated water;
or directly by its weight in operating a pair of closed cups, carried at opposite
ends of a lever fulcrummed at its centre, which are filled and emptied alternately.

page_text: In the former arrangement, two tanks are provided, in each of which a float is
located; the floats are balanced and are connected to opposite ends of a lever
fulcrummed at its centre; a valve is provided which at each operation of the
machine alternately fills the one tank and empties the other, and a detent is
arranged to engage with the float lever at each end of its stroke. It will be seen
that if one tank (A) is full and the other (B) is empty, the float lever if free
would turn so that the float in A would be up and that in B down; if however,
the float lever be moved so that the float in A is down and that in B up, and held
there by the detent, it will be urged from this position by an upward pressure of
the submerged float due to the displaced water, and further that if the inserted
coin be allowed to free the detent, the float lever will move to the opposite end of
the stroke in accordance with this pressure.
This movement is made to operate the essence cup and also to operate the
valve, so that the latter allows the tank A. to be emptied and B to be filled, the
detent in the meantime engaging with the float lever and holding it at the opposite
end of its stroke; the tank A will now be empty, B full, the float in A will be up
and that in B down, and on the next coin liberating the detent, the action will be
repeated..
The tanks may be either open or closed (that is closed with the exception of a
small bore air pipe to act as a vent); we prefer the latter form as it enables us to
obtain a greater portion of the energy of the falling water than the former.
We carry the spoon which measures the essence etc., on a pivoted spindle
operated by the float lever, so that in one position it is immersed in the essence
and in the other position it is just under the exhaust spout of the valve, so that as
the water flows out of the latter, it mixes with the essence and washes the spoon.
We prefer to provide two spoons carried from the one spindle and dipping into
tanks laterally arranged with reference to the exhaust spout, under which the
spoons come alternately, and we provide a deflector to prevent the water which
washes the one spoon from flowing into the tank in which the other spoon is
submerged; we also, if necessary provide a deflector in the spoon to direct the
stream of water to the best advantage for washing the spoon.
When a pivoted descending cup is used to utilise the energy of the descending
water as described, it operates the essence spoon and brings the latter under the
spout out of which the water flows.
A balance weight may be attached to the float lever above its pivot to further
assist the action. All the working parts are as far as possible balanced so as to
reduce the energy required to operate the machine. Any suitable mechanism may
be used to enable the coin as it descends to release the detent.
In the alternative. form mentioned we 'substitute for the tanks and floats
described, two closed cups carried on opposite ends of a lever fulcrummed at its
centre; in other respects the arrangement is similar to that described in connection
with floats and tanks excepting that the valve now alternately fills and empties the
cups, the full cup being kept in top position till the detent is released. In this
form it is found advantageous to provide each cup with an exhaust valve operated
as the cup descends and to arrange for the main valve to regulate the admission
only, or to provide each cup with both exhaust and admission valves.
In the accompanying drawings, Figs. I and II show the general arrangement of
the apparatus where closed tanks and floats are used; Figs. III, IV and V are
detail views of the valve which regulates the flow of the water in order to fill and
empty the tanks alternately, and Fig. VI shows the general arrangement of the
modified form of the apparatus in which swinging closed cups are used in place of
the tanks and floats.
Throughout the drawings, similar parts are indicated by the same reference
figures, and in the case of sections, the direction in which they are viewed, is
indicated by the small arrows placed adjacent to the letters denoting the plane of
section.
Referring first to Figs. I and II, Fig. I is a sectional elevation on the line C. C

page_text: of Fig. 11, and Fig. II is a sectional elevation on the line D. D. E. E, of Fig. I ;
in each case a few of the parts of the mechanism in front of the respective planes
of section are shown.
1 is the casing in which the apparatus is enclosed; it may be of any suitable
contour and ornamented as desired. 2 is the water cistern which is placed high in
the casing and heated by the gas burner 3 or any convenient source of heat.
Where convenient, the cistern may be supplied directly from a water main through
an ordinary ball cock, and where a main is not available, it is desirable, though
not essential, to provide an additional store cistern arranged to feed 2 through a
ball cock, in order that the temperature in the latter cistern may not be lowered
by suddenly replenishing it with a large quantity of cold water.
4 is an air jacket
to localise the heat so as to economise the latter and prevent its diffusion through
the casing.
A and B are the tanks, closed with the exception of the passages 27 and the air
pipes 7. The tops of the tanks enter the cistern as shown, in order that the charge
of water in the former may not be cooled during the interval between the filling
and emptying of the tanks, which may be considerable. The tanks are jointed to
the cistern bottom by the flanges 8 and the washers 9, through both of which the
bolts pass.
10 and 11 are floats within the tanks A and B; these floats fit rather
closely laterally but quite freely within the tanks, and their volume is such as to
leave space in each tank for the proper charge of water. The floats are slung by
the wires and chains shown from opposite ends of the sway-beam 12, secured to the
weigh-shaft 13, to which are also secured the lever 14 and the detent lever 15.
The floats are made heavier than the weight of displaced water in order that their
connections may always be in tension.
16 is a pawl carried on the spring arm 17 and adapted to engage with the ends
of the detent lever 15 and hold it either in the position shown or in a position
symmetrically similar with respect to the line D. D. Under normal circumstances,
one tank is always full (as A) and the other empty, and the float in the full tank is
in lower position, and it is clear that there is thus stored up ready for instant
service, an amount of energy represented by the weight of water above the float
multiplied by the height through which it descends in falling to the bottom of
the tank as the float rises, or in other words, energy equivalent to the weight of
water displaced by the float, multiplied by the height through which the float can
rise. This energy is quite sufficient to effect the various functions of the machine,
and the only work to be done by the falling coin is to release this energy by
disengaging the pawl 16 from the detent lever 15. This may be effected in a
variety of ways, but the arrangement illustrated is found to work well. The
tube 18 conveys the coin from the slot 19 into the receptacle 20 formed on the end
of the lever 21; the side of this receptacle is open but the coin is prevented from
falling out of it by the fixed fence 22 until the stroke of 21 is completed. The
motion of 21 is conveyed through the spindle 23, short lever 24 and connecting
link 25 to the spring pawl arm 17, the elasticity of which returns the lever 21 to
normal position after the coin has dropped therefrom. The central part of the
link 25 is broken away in Fig. II so as not to obscure the rest of the mechanism.
The valve for regulating the flow of the water may be of the ordinary four-way
cock type, designed to work with a minimum of friction, but we prefer to use a
hollow rotary slide valve which is shown in detail to larger scale in Figs. III, IV
and V. In Figs I and II it is shown conventionally as a four-way cock, as the
connections and action are thereby rendered more obvious. The shell of the cock
has four ports leading respectively to the cistern by the pipe 26, to the tanks by
the pipes 27, and to the spout 28. The plug 5 of the cock is shown connecting the
tank A to the supply and B to the spout, and when it is moved into a symmetrically
similar position, it connects B to the supply and A. to the spout. The cock is
operated from the lever 14 by the link 29, but we find that it is not advisable to
make the connection positive, because if so, the full tank would commence to empty
and the empty one to fill before the stroke would be completed, the pawl might

page_text: -
then fail to engage and the apparatus might so settle down into a neutral position
with both tanks partially filled. To obviate this, we arrange matters so that the
cock is not operated until very near the end of the stroke-after in fact the pawl
has engaged with the detent lever-and it is then moved over promptly. The
lever 30 which is operated by the link 29 rides quite freely on the cock spindle, and
on the extension 31 which is integral with 30, we fix the pins 32, between which
plays the lever 33 carrying the load 34 at its outer end. This latter lever which
directly operates the valve, plays through a large angle (say 120 degrees), but
through the greater part of its stroke it is inoperative, only driving the cock plug
through a few degrees as it approaches the ends of its stroke. The stroke of the
pin 32 drives the lever 33 a little beyond the vertical position (without operating
the cock) and the lever then falls over to a position on the opposite side
symmetrically similar to that shown, being arrested by the other pin 32 and operating
the cock towards the end of its stroke. The pawl 16 is arranged to engage
with 15 when the lever 33 is vertical, but to ensure that the lever 33 shall fall over,
the stroke is continued a little further. It is clear that after the cock has been
operated, the detent 15 will return until arrested by the pawl, and it is for this
reason that the floats (which are in normal position) are not shown at their extreme
positions; the clearance shown at the slotted upper end of the link 29 is to
provide for this slight return movement and to prevent it from operating the lower
mechanism.
As described so far, the apparatus forms a perfectly automatic machine for
delivering measured quantities of a liquid on dropping a coin into the slot..
The device for measuring, and delivering the essence and mixing it with the water
is as follows;―
35 are a pair of containers arranged symmetrically, in which the essence is stored,
and 36 are a pair of spoons of suitable capacity, carried rigidly from the spindle 37
by the bow frame 38 and arms 39; the spoons are arranged symmetrically so that
when one is immersed in its container, the other is just under the spout 28, and they
are made portions of spheres, or approximately so, in order that, irrespective of the
level in the containers, they may always (if submerged) carry away approximately
equal charges.
The spindle 37 is operated from the lever 30 by the link 40 and lever 41;
42 and 43 are balance weights which respectively balance the bow frame 39 and
its attachments, and the various levers and links.
At each stroke of the apparatus, a spoonful of essence is withdrawn from one or
other of the containers, and it runs out of the trough-shaped shank of the spoon
between the arms 39 into the hopper 44, whence it drains by the tube shown into
the delivery spout 45. It will be seen that in its delivery position, the
spoon is brought immediately below the spout 28 in order that it may be
washed out by the latter, and the water and essence thoroughly incorporated.
This is especially necessary if the essence is viscous (as beef essence). It is
advisable to so place the spoon that the stream of water washes both the inside and
outside, and in some cases it may be advisable to fit a deflector on the spoon on its
concave side, so as to more effectually deflect the water into the concavity; this is
indicated by dotted lines in Fig. I, but we find that the tendency of the water to
cling to the surface is usually sufficient to make it follow the concavity and
effectually wash it.
The shanks of the spoons are only made long enough to ensure that they will
not commence to deliver until they are over the hopper, and the sides of the latter
are preferably inclined to prevent the essence from lodging thereon. 46 is a
deflector with side cheeks 47 carried on the bow frame 38, to prevent the water
from flowing into the containers or splashing over the hopper sides.
With a comparatively limpid essence, the charge will be practically uniform in
quantity, but with a very viscous one which clings to the spoons, a somewhat
larger charge will be removed when the spoons are more deeply immersed. Where
this is of sufficient importance, it may be^ readily obviated, either by arranging to

page_text: maintain a constant level in the containers, or by always dipping the spoons to the
same depth below the surface. In the former case, a separate additional closed
store cistern at a higher level may be provided for the essence, and connected to
the containers 35 by the well known bird drinking fountain arrangement; in the
second case, each spoon, instead of being rigidly attached to 38, may be attached
by a yielding connection, and arranged to abut against a float in the container, so,
as always to dip to the same depth below the surface.
As already mentioned, the tanks A and B may be made open instead of closed,
but the arrangement illustrated is superior in several respects. Open tanks would
have to be carried up to the top of the cistern 2 and the floats similarly prolonged,
and the charge instead of being lodged in a definite space above the floats would
occupy the annulus surrounding them; and the amount of the charge would thus
be materially affected by changes of level in the cistern. Moreover, as the centre
of gravity of the charge would be at the centre of the height of the annulus, only.
about half of the possible energy would be available, the other half being dissipated
in the act of charging the tank.
Referring now to Figs. III, IV and V which show the valve in detail;
Fig. III is a front elevation with the cover removed and the valve in section;
Fig. IV is a section on the line F. F. of Fig. III and Fig. V is a section, the valve
box being on the line G. G. and the valve on the line G. H. of Fig. III.
The valve box 48 fitted with the cover 49 has four branches 26, 27, 27 and 28
which correspond to the branches similarly numbered and already described,―that
is to say, 26 leads to the cistern 2, 27 and 27 lead to the respective tanks, and 28
is the spout. These branches communicate with the ports, (which are similarly
numbered) in the port face; it will be observed that the delivery port communi-
cating with the spout is concentric with the spindle 50.
The valve 51 is a hollow rotary slide valve with a pair of ports and adapted to
alternately couple the ports 27 to the supply port 26 and to the delivery port 28.
The valve is guided and operated by the spindle 50 to which the lever 33
(Figs. I and II) is secured, the necessary play, which has already been referred
to, between the spindle and the valve, being provided for by the cross pin 52
which plays between the stops 53 on the valve. The function of the spring 54
is to maintain a gentle and equable pressure on the back of the valve, just sufficient
to keep it water tight.
Referring now to Fig. VI; this is a view, analogous to Fig. 1, of the arrange-
ment where a pair of closed cups mounted on a pivoted lever are used instead of
tanks and floats.
The principle involved is identical, but here the energy of the water operates
directly by its weight instead of indirectly by means of the buoyancy of the floats.
The cups 55, which are closed with the exception of the vent pipes 7', (which are
carried above the level of the water in the cistern 2 and made flexible if need be),
are mounted at opposite ends of the tubular lever 56 which is fulcrummed fluid-
tight on the hollow spindle 57, supplied by the pipe 26'.
The cups are supplied and emptied through their respective three-way cocks 58,
provided with the levers 59, adapted to engage with the fixed tappet pins 60; the
cocks deliver into the common funnel 61 and thence into the spout 281-analogous
to the spout 28 of Figs. I and II. The remaining details are identical with or so
closely analogous to those already described as to call for no further reference,
the lever 14 and detent lever 15¹ being now co-axial with and secured to the
tubular lever.
The action is so closely analogous as to be obvious without further description.
It is to be noted that in this as in the previous arrangement, the cocks are not
operated until the detent has engaged and the stroke is almost completed, and it is
for this reason that the cock levers are shown clear of the tappet pins by the
amount that they have retreated until arrested by the detent.
It will be observed that the broad distinguishing feature of our invention
consists in making use of the energy of the descending liquid (which is much

page_text: greater than that of the coin), to effect all the functions of the apparatus, it being
only necessary for the purchaser to insert a coin to free the mechanism operated by
the said energy; and as the work to be done by the coin is very small, there is
practically no risk of failure.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is ;-
1. Coin freed apparatus for the automatic sale of liquids in which the energy
of the descending liquid is used to operate the valve which regulates its flow and
in which the coin merely liberates the mechanism operated by the said energy;
substantially as set forth.
2. Coin freed apparatus for the automatic sale of liquids, in which the energy of
the descending liquid is used to operate the valve which regulates its flow and to
measure, deliver, and mix therewith an essence, and in which the coin merely
liberates the mechanism operated by the said energy; substantially as set forth
3. In coin freed apparatus for the automatic sale of liquids, a pair of floats
whose buoyancy is alternately altered by the liquid to be delivered, and which are
adapted to operate the valve which regulates the flow of the liquid, and to
measure, deliver and mix therewith an essence, and means for utilising the coin
for liberating the mechanism operated by the energy of the said floats; sub-
stantially as described and illustrated.
4. In coin freed apparatus for the automatic sale of liquids, a pair of cups
mounted on a lever, which are alternately filled by the liquid to be delivered and
their equilibrium so disturbed, and which are adapted to operate the valves which
regulate the flow of the liquid, and to measure, deliver and mix therewith an
essence, and means for utilising the coin for liberating the mechanism operated by
the energy of the said cups; substantially as described and illustrated.
5. In apparatus as claimed in Claim 1, a valve so articulated to the operative
mechanism that it is not operated until the said mechanism is locked by a detent;
substantially as and for the purpose described and illustrated.
6. In coin freed apparatus for the automatic sale of liquids, and in combination
with the operative mechanism, the means for operating the valve which consists of
a loaded lever loosely connected to the valve; the load being raised by the
operative mechanism and the lever completing its stroke by its stored energy
after it has ceased to be propelled by the operative mechanism; substantially as
described and illustrated.
7. In coin freed apparatus for the automatic sale of liquids, the use of one or
more spoons adapted to oscillate and to alternately dip into a liquid and to be
brought under a spout delivering a second liquid with which the first is to be
nixed; substantially as described.
8. The combination of the tanks A and B, the floats 10 and 11, the detent
operated by the coin, the supply valve, and the connecting levers and links;
substantially as described and illustrated in Figs. I and II.
9. The combination of the tanks A and B, the floats 10 and 11, the detent
operated by the coin, the supply valve, the device for delivering and mixing the
essence with the liquid, and the connecting levers and links; substantially as
described and illustrated in Figs. I and II.
10. The combination of the pivoted cups, the detent operated by the coin, and
the valves operated by the motion of the cups; substantially as described and
illustrated in Fig. VI.
11. The combination of the pivoted cups, the detent operated by the coin, the
valves operated by the motion of the cups, the device for delivering and mixing the
essence with the liquid, and the connecting levers and links, substantially as
described and illustrated in Fig. VI.
12. The combination of the essence containers 35, spoons 36, rock shaft 37 and
the deflector 46; substantially as described and illustrated.

page_text: 13. The improved coin freed apparatus for the automatic sale of liquids ;
substantially as described and illustrated in Figs. I and II.
14. The improved coin freed apparatus for the automatic sale of liquids ;
substantially as described and illustrated in Fig. VI.
Dated this 12th day of September 1894.
SLOAN & LLOYD BARNES,
Castle Chambers, 26, Castle Street, Liverpool,
Agents for the Applicants.