US2037688A - Automatic drink vending machine - Google Patents

Description

Aprll 14, 1936, T, BRADY 2,037,688

AUTOMATIC DRINK VENDING MACHINE Original Filed Sept. 20, 1932 4 Sheets-Sheet l @j Y HIM/w? M" Il Hl April 14, 1936D T BRADY 2,037,688

AUTOMATIC DRINK VENDING MACHINE original Filed sept. 2O, 1932 4 sheets-sheet 2 INVENTOR.

Za/Wdf M@ @d A TTORNEY April 14, 1936. T. BRADY AUTOMATIC DRINK VENDING MACHINE Original Filed Sept. 20, 1932 4 Sheets-Sheet 3 T/Wms E A TTORNE Y April v14, 1936.

AUTOMATIC DRINK VENDING MACHINE Original Filed Sept. 20, 1932 T. BRADY 4 Sheets-Sheet 4 IN V EN TOR.

ATTORNEY lll) Patented Apr. 14, 1936 UNITED STATES PATENT OFFICE Original application September 20, 1932, Serial No. 633,942. Divided and this application April 13, 1935, Serial No. 16,177

5 Claims. (Cl. 225-21) This invention relates, generally, to the vending of soft drinks; and the invention has reference, more particularly, to a novel coin controlled automatic vending machine for dispensing a plurality of carbonated soft drinks of various avors.

This application is a division of my copending patent application Serial No. 633,942 filed September 20, 1932, Patent No. 2,000,556, May 7, 1935. Said copending patent application disclosed and claimed a coin operated controlling means for a fluid and cup dispensing structure, whereas the present application claims the specific uid dispensing structure with the circuit closing means included therein broadly.

The principal object of the present invention is to provide a vending machine of the character described, including means for supplying carbonated water. additional means for supplying syrup, and valve means for intermixing the carbonated water and syrup in response to the operation of suitable circuit closing means, thereby producing a carbonated drink.

Other objects of this invention, not at this time more particularly enumerated, will be clearly understood from the following detailed description oi the same.

The invention is clearly illustrated in the accompanying drawings, in which:

Fig. l is a view in front elevation oi the novel automatic drink vending machine oi this invention.

Fig. 2 is a plan View of the structure shown in Fig. l.

Fig. 3 is an enlarged fragmentary, part sectional View taken substantially along line 3-3 o Fig. 2, looking in the direction of the arrows.

Fig. 4 is a fragmentary view taken substantially along line 4--4 of Fig. 3 looking in the direction ci the arrows.

Fig. 5 is a fragmentary view taken along line 5-5 of Fig. 3 looking in the direction o the arrows. I

Fig. 6 is a view similar to Fig. 4 but illustrates the machine in operation just after a coin has been inserted thereinto.

Fig. 'l is a view looking at the reverse side ci the structure shown in Fig. 6 and illustrates the purchaser in the act of removing the filled cup.

Fig. 8 is a wiring diagram illustrating the circuits involved.

Fg. 9 is a schematic sectional view taken subst: tially along line -Si oi Fig. 2.

Fig. l is a fragmentary plan View with parts broken away of the mixing valve employed in the machine.

Fig. 11 is a fragmentary view in side elevation with parts broken away of the mixing valve.

Fig. 12 is a fragmentary view in side elevotion of the machine; and

Fig. 13 is a sectional view taken along line i3-I3 of Fig. 6.

Similar characters of reference are employed in all of the above described views to indicate corresponding parts.

Referring now to the said drawings, the reference-numeral I designates the novel automatic drink vending machine of this invention as a whole. This machine comprises a cabinet 2 having front and back walls 3 and ll, side walls 5 and and relatively narrow walls 'l and 8 interconnecting the front and side walls. Cabinet 2 has a hollow translucent or transparent advertising device 9 at the top thereof within which is preferably contained a suitable electile light and on the exterior walls of which are depicted suitable advertising rnatter il. The front, side and interconnecting walls of the cabinet 2 are each provided with a compartment door l2, each of which doors is disposed substantially centrally oi its respective wall.

Above each door is depicted the name or" a respective drink, thereby designating the type of drink served through such door, Slightly to the right of each door i2 is provided a coin receiving aperture i3 of a size conforming to a particular denomination of coin, for example, a rive cent piece. Further to the right of each door l2 is provided a used cup receiving aperture ll of a shape adapted to receive a cup when the same is held in a vertical position. The used cup apertures it are symmetrically arranged with respect to the doors l2, thereby causing the cabinet i2 to have a neat and attractive appearance. ln the form of the invention shown in the drawings, the cabinet is illustrated as having five cup corr.- partment'doors, adapting the same to serve ve diierent drinks, but it is to be understood that this cabinet may have a lesser or even greater number of such doors, if desired. Also two cabinets may be arranged back to back when desired, thereby presenting a handsome appearance and enabling the sale of ten different carbonated drinks.

Substantially centrally disposed within the lnterior of the cabinet is a casing i (see Fig. 2) containing an electric refrigerator consisting of a refrigerator unit i6 (see Fig. 9) connected by piping il to the cooling jacket it ci a closed car-A bonated water cooler container it. An expansion valve 2@ is provided in piping ll Where this piping joins the cooling jacket |9 so that refrigerant expanding within jacket |9 will effect the cooling of the carbonated water 2| contained Within water container I8. Carbonated water under pressure is supplied from a pressure tank 22, situated in the lower part of cabinet 2, by means of piping 23 to container I8, within which container the carbcnated water is cooled to a relatively low temperature by the refrigerating action of the refrigerator unit. Y

Container I8 is provided with outlet piping 24 to the upper end of which is connected a plurality of branch pipes 25. The branch pipes 25 are adapted to conduct the cooled carbonated water to mixing valves 26, ve of which valves are illustrated in the drawings, corresponding to the number of differing drinks dispensed by the machine. Valves 43 are included in pipes 25 adjacent the respective mixing valves 26 in order to shut off the supply of `cooled carbonated water to these valves, when desired. A plurality of removable jars 21 are" contained within the upper part of cabinet 2, which jars are adapted to contain the various ilavors or Syrups dispensed by the machine. Jars 21 are mounted in inverted position with their necks 28 projecting downwardly into hoppers 29, which hoppers serve to support the jars and are illustrated as having gaskets 30 for sealing the joint between the tops of the jars and the hoppers. Hoppers 29 are connected by pipes 3| to the mixing valves 26. Ihe lower portions of hoppers 29 are illustrated as having valves 32 which permit the shutting off of the supply of syrup when desired.

One of the mixing valves 26 is shown in detail in Figs. l0 and 11 and consists of a casing having a cylindrical valve recess 33 therein, within which is slidably contained a piston 34 that has a piston rod 35 extending therefrom. A coil compression spring 36 contained within recess 33 bears against the piston 34 and urges the free end of piston rod 35 against a plunger 31 that is reciprocally mounted within a cylindrical recess 38 provided in the casing of valve 26. An annular stop shoulder 39 is provided within valve cylinder 33 for limiting the motion of piston 34 under the action of spring 36. With piston 34 abutting stop shoulder 39, the said piston serves to close a port 40 in the valve casing, which port communicates, by means of a passage 42, with one of the pipes 25 leading to the outlet piping 24.

Acamming lever 44 is pivotally mounted upon a projection 45 formed on the casing of valve 26, which camming lever has cams 46 formed thereon. One of the cams 46 is adapted, upon the turning of lever 44, downwardly, to affect the inward movement of plunger 31 and piston rod 35, thereby causing piston 34 to compress spring 36 and eiect the opening or port 46 so that in use, carbonated water under pressure may iiow from the pipe 25 through passage 42, port 4|) and into cylindrical recess 33. The cylindrical recess 33 is provided with a relatively small aperture 48, which communicates through a short tube 49 to the interior of a small mixing chamber 5|) formed in the casing of valve 26. Thus, the carbonated.

water under pressure within cylindrical recess 33 will ow through aperture 48 and tube 49 into the mixing chamber 5D when plunger 31 is depressed by the action of camming lever 44.

The casing of valve 26 is also provided With a. second cylindrical recess 5| which extends parallel to the recess 33. Recess 5| has a piston 34 movable therein which is similar to piston 34.

I'he piston rod 35 of piston 34' is urged against a plunger 31 by the action of the coil spring 96. With piston 34 in engagement with an annular shoulder 39 under the action of spring 36', the said piston serves to close a port 52 which communicates, by means of a short tube 53, to the interior of the small mixing chamber 50. Pipe 3| leading to one of the jars 21 is adapted to convey syrup into e ,ierture 54 which communicates with the cylindrical recess 5|. When plunger 31' is pressed inwardly by cam 46 of camming lever 44, piston 34 uncovers the port 39 so that syrup flowing through pipe 3|, passage 54 and cylindrical recess 5|, will enter port 52 and pass through tube 53 into the small mixing chamber to be there intermixed with the pre-cooled carbonated water. VFrom the small mixing chamber 50, the intermixed carbonated water and syrup will flow into a large tubular mixing chamber 55 which extends vertically downwardly from valve 26. A spout 56 is attached to the lower end of mixing chamber 55 and serves toconduct I the intermixed syrup and carbonated water to a drinking cup as will further appear.

Ihe outer free end of camming lever 44 is plvotally connected to the upper end of a depending link 51 which has its lower end pivotally connected, as by a pin 58, to the upper end of an armature 59 lthat is adapted to telescope within a solenoid 60. Armature 59 is normally held in its upper and withdrawn position with respect to the.

solenoid 60 by means of a coil tension spring 6| which has its lower end connected to the pin 56 and its upper end connected to a bracket arm 62 which is, in turn, carried by a bracket 63 projecting outwardly from the refrigerator casing l5. Since spring 6| normally holds the armature 59 in its uppermost position, the link 51 is also held in its uppermost position, causing camming lever 44 to be held in its upper position, as shown in Fig. 4, in which position the ports 40 andv 52 of valve 26 are closed.

As especially shown in Figs. 3 to 5, the bracket 63 has a bell crank lever 64 pivotally mounted thereon as by means of a pivotal pin 13. One arm of bell crank lever 64 depends downwardly and is pivotally connected, as by a pivotal screw 65, to the operating arm 66 of a cup dispenser 61. known construction and is thought to require no detailed description. The preferably waxed paper cups 66 of the dispenser 61 are confined in a vertical position, as by vertical rods 69, extending upwardly from the main portionpf the cup dispenser. actuated, a cup 68 will be dropped vertically downwardly from this dispenser and past the discharge mouth of spout 56. The other arm of bell crank' lever 64 is inclined upwardly somewhat to the horizontal, and has the upper end of a depending tension spring 10 connected to its free end portion. The lower end of spring 10 is connected to a screw 1| which is threaded into the depending link 51.

The tension of spring 10 tends to turn bell crank lever 64 in a counterclockwise direction, as viewed in Fig. 5, thereby tending to cause an operating movement of operating arm 66 of the cup dispenser 61. Movement of bell crank lever 64 under the action of tension spring 10 is normally prevented, however, by a roller stop 12 that is carried by the depending link 51 and engages the underside of the upwardly inclined arm of bell crank lever 64. When depending link 51 is pulled downwardly, however, as when sole- 'I'he cup dispenser 61 is old and of well V Each time the operating lever 66 is noid 60 is energized, the roller stop 12 will move downwardly as will also pin 1i, so that spring "I will cause the actuation of bell crank lever 64, resulting in the operation of the cup dispenser 61. The cup dispenser 61 thus acts to discharge a cup which falls downwardly past the drink discharge mouth of spout 56 and passes into the hollow interior of a cup embracing bracket 15. The cup then comes to rest in an upright position with its bottom resting upon a tipping platform or pan 14 and with its sides embraced by bracketl 15.

The cup embracing bracket 15 is of C-shape, as viewed in plan, and is open at the front so that a cup can be readily withdrawn therefrom, although this bracket i serves to maintain the cup in an upright position upon the tipping platform or pan 'iii until the user'rernoves the same therefrom. The cup embracing bracket le is supported at its rear upon the upper end portion of a strut 1li which extends downwardly and through an aperture provided in the platform 'it and has a. forwardly directed flange at its lower end which is secured to a beam 11.

A substantially vertical panel it is fixed to the rear surface of the strut l5 and serves as a rear wall for a cup compartment which has one of the doers i2 at the front thereof. Tipping platform or pan 1d is supported upon the 'lower portion of strut 16, as by means of a transversely extending angle bar which is secured to the under-surface of the tipping platform and to the strut 15. The strut thus serves to support the tipping platform 'ld upon beam lll. Beam 11 is formed with transverse extensions @il at its sides, which extensions have down-turned ears 89' at their ends, which ears are pivotally mounted upon a transversely extending pivotal rod 8|. Pivotal rod 8| has its ends supported by upwardly directed ears 83 formed at the sides of a horizontal bracket 82 which is attached to the casing I5.

Owing to the pivotal mounting of the beam 11 upon pivotal rod 8| carried by bracket 82, this beam and the platform 14 are adapted to turn somewhat about a horizontal axis. The beam 11 is provided with stop screws 85 and t5 near its ends, which screws, by engaging the bracket 82, serve to limit the turning or tipping movement ofthe beam 11 and of the platform or pan 14. The beam 'l1 carries an adjustable weight 85 which may be nicely adjusted so that the tipping platform 14 will normally remain in a somewhat forwardly and downwardly inclined position, '(see especially Figs. 4 to 6) with the stop screw 85 in engagement with the bracket B2. rIhe weight 86 is so adjusted, however, that when a cup 68, resting upon the tipping platform 14, receives the desired quantity of drinking uid, the weight of the cup and its contents will serve to tip the platform 'lili forwardly somewhat by overbalancing the weight 05, thereby moving the screw 85 into engagement with bracket 82, as illustrated in Fig. 7.

The tipping platform or pan itl is provided with flanges at its sides and with a V-shaped flange 01, which flanges project upwardly from the upper-surface of platform 14 and serve to conduct any liquid spilt upon this platform to a spout 08 formed in the forward portion thereof. Owing to the inclination of the platform or pan 14, liquid spilt thereon will flow naturally to spent 80 and will be discharged from this spout into the flared upper end portion of a depending waste pipe 89, which serves to convey such spilt liquid downwardly and into a sump or pan 90 positioned at the bottom of the cabinet.

A mercury bulb switch 3| is mounted upon a clip 92 that is secured to the upper surface of platformld at the rear of panel 18. Mercury bulb switch Sii is so positioned with respect to the cup platform tl that when this platform is in its normal slightly inclined position, i. e. with the stop screw 85' in engagement with bracket 82, the mercury within this bulb switch will engage the terminals of the switch so that, in effect, this switch is closed. A lead 03 is connected to one terminal of mercury bulb switch Si and a second lead 0d is connected to the other terminal of this mercury bulb switch. Lead @f3 extends to one terminal of the solenoid 6i), the other terminal of which solenoid is connected by a lead 95 to one lead @ii of a current supply line having a second lead Si.

A second mercury bulb switch 90 is mounted upon a clip 99 that is also secured to the upper surface of platform 'lli at the rear of panel i8. Mercury bulb switch 98 is so positioned with respect to the cup platform 1li, that when this platform is in its normal slightly linclined position, i. e. with the stop screw 05 in engagement with bracket 82, the mercury within this bulb switch is out of engagement with the terminals of this switch so that, in effect, this switch is open. When the platform is tipped forwardly, however, undcr the weight of a filled cup Gil, the mercury within bulb switch 98 will shift so as to complete a circuit across the terminals of this switch, as especially shown in Fig. '7, whereas the circuit through bulb switch 9i will be broken, owing to theflowing of the mercury away from the terminals of switch Si when the platform tips forwardly.

One terminal of mercury bulb switch 98 is connected by a lead M to the supply lead Sl. The other terminal of switch e3 is connected by a lead |0| to one terminal of a door operating solenoid |02, the other terminal of which solenoid is connected by a lead 503 to the supply -lead 96. The core |05 of door operating solenoid |02 is mounted upon a bracket |04 that is xed to the casing i5. An armature Illo` is adapted to telescope within the hollow interior of solenoid |02 and extends downwardly from this solenoid.

A depending rack |01 is pivotally connected at its upper end, as by a pin |08, to the armature |06 and has its lower end portion sli-dably guided in a slide bearing projection |09 formed en the bracket |04. A depending circular rod I0 has its upper end secured to the lower end of rack |01 and the lower end portion of this rod Ilil projects downwardly through the top of an air check cylinder il. The lower end of depending rod ill) has a check piston 'E42 fixed thereto for reciprocation within check cylinder lil. The upper and lower portions of check cylinder ill are provided with relatively small apertures it and M3 which may be made ad- -justable as to size, if desired, in a manner well known to those skilled in the art. Aperturcs lf3 and H3 serve to check the movement'of check piston H2 within cylinder iii and hence serve to check reciprocating movements of rack |01 in use. The teeth of rack i-l' mesh with a gear i |4 that is fixed upon a forwardly extending shaft I5. The rear cnd portion of shaft ||5 is turnably mounted upon a bearing provided in the bracket |04, whereas the front end portion of this shaft is mounted in a bearing provided vin an extension IIS of the bracket |04.

A sheave ||1 is fixed upon the forward end portion of shaft ||5 and has a chain ||8 passing thercover. One end of the chain ||8 is fixed to the periphery of sheave ||1 and the other end of this chain is attached to a bracket ||9 that is secured to the upper portion of a cup compartment door |2. The door I2 is adapted to slide upwardly in moving from closed to open position and is guided in its movement by vertical guides |25 attached to the inner Wall surface of cabinet 2. Door I2 is preferably transparent and may be made, for example, of any suitable cellulosic material. A knob or handle |20 is shown attached to the lower central portion of the door |2, which handle projects outwardly of the cabinet 2. A transverse bar, such as an angle bar, extends across the lower rear portion of door |2 and has a horizontal flange |2| projecting rearwardly of this door, which flange is adapted to cooperate with pivoted latches |22 which are pivotally mounted, as by screws |23, upon upturned ears formed at the two sides of bracket 82.

The latches |22 have enlarged or weighted portions S24 positioned forwardly of the pivotal screws |23 so that these latches are normally urged by gravity into cooperativerclation with the iiange |2|. Thus, in Fig. 6, for example, the enlarged portions |24 of the latches |22 urge these latches in a counterclockwise direction so that they will engage ange |2| and thereby serve to retain the door I2 in closed and locked condition. Latches |22 have rearwardly directed releasing projections |26 which are adapted to cooperate with a transversely extending bar |21 carried by the forward portion of the cup platform 14. With the door |2 in closed position, as shown in Fig. 6, and with the cup platform 14 in its normal position (i. e. with stop screw 85 engaging bracket 82) the latches |22, by engaging the flange |2|, will serve to lock the door in closed position, while the releasing projections |26 are positioned immediately below the under surface of bar |21.

After a cup 68 has been filled with a predetermined quantity of drink, however, causing platform 14 to tip forwardly as shown in Fig. 7, the transverse bar |21 will act to move the releasing projections |26 downwardly, thereby turning latches 22 rearwardly about their pivotal connections with the bracket 82 and eifecting the unlocking of the door |2. The forward tipping of the platform 14 also completes a circuii through mercury bulb switch 98, thereby effecting the energization of door operating solenoid |.2 (see especially Fig. 8) and causing upward movement of armature |06, resulting in the turning of gear I4 and sheave ||1, to thereby raise door |2 to open position and permitting the purchaser to insert his hand, as shown in Fig. '1, and remove the filled cup.

The coin control mechanism consists of a depending flattened conveying tube |29 which extends -downwardly and rearwardly from the coin receiving aperture |3 (see especially Figs. 3 to '7). The conveying tube |29 has an internal cross section substantially conforming to that of the denomination of coin used, i. e. when the coin is viewed edgeways, and this tube serves to convey the coins to the forward end portion of a. pivoted beam |30. The coins are delivered so that their strike the beam |30, the faces of the coin exing transversely of the beam as shown in dot dash lines in Fig. 13. Beam |30 is pivotally supported substantially midway of its length as upon a. pivotal pin |3| carried by a bracket |32 that is xed to the casing I5. As especially shown provided with a slot |33 immediately underlyingl the discharge end of tube |29. `Slot |33 is of slightly lesser Width than the diameter of a genuine coin intended to be used in the machine, so that fictitious coins of smaller diameter than genuine coins will fall through slot |33 and will not serve to turn the beam |30. A coinv box |40 is provided below the forward end of beam |30 for receiving coins dropped from this beam`.

A .genuine coin will not fall through the slot |33, but the edges of such a coin will strike the beam |30 at the sides of slot |33 and move the forward end of the same downwardly somewhat until this end of the beam engages the upper surface of the pivoted armature |34 of a holding coil |35. Armature 34 is pivoted' at |39 upon the core frame of holding coil |35. A tension spring |49 pulls upon one end of armature |34 and urges the other end thereof upwardly and toward the under surface of beam |30. A suitable stop |44 serves to limit the upward turning movement of armature |34, thereby serving to hol-d this armature somewhat spaced from beam |30. The beam |30 is nicely balanced so that the weight of a. lgenuine coin will cause this beam to turn about the pivotal pin |3| until the turning motion of the beam is stopped by the same contacting with the upper end of pivoted armature |34. The beam is stopped in its turning movement by the armature |34 before this beam has turned sufliciently to completely dislodge the coin from the tube |29, so the beam will come momentarily to rest with the coin still resting thereon. The beam|30 is not engage the terminals of the switch as shown in Figs. 4 and 5.

In use, the tipping of the beam |30, caused by the insertion of the proper coin into-coin aperture I3, causes the mercury in bulb switch |31 to engage the terminals of this switch, thereby completing a circuit for holding coil |35. This circuit (see Fig. 8) is from supply lead 91, by Wayof lead |4| through switch |31, lead 93, switch 9|, lead 94, lead 42, holding coil |35, lead |43 and lead 95 to supply lead 96. Thus, as soon as a coin strikes the beam |30 causing the same to tip downwardly until stopped by pivoted armature |34, a circuit is completed for holding vcoil |35 which immediately acts to draw armature |34 down to the core of this coil and causing beam |30 to tip still lower and effect the complete dislodgment of the coin from tube |29, which coin falls into box |40, as especially illustrated in Fig. 6. 'I'he beam |30 is shown as having an iron piece |46 on the under surface thereof, which piece is attracted by the magnetism of the holding coil so that the beam |30 is held in its down tilted position shown in Fig. 6 after the coin has dropped from this beam.

The closing of switch |31 also completes a circuit for the soledoid 60. As especially shown in Fig. 8, this circuit extends from supply lead 91, through lead |4|, switch |31, lead 93, switch 9|,

lead 94, solenoid 6D, lead 95 to supply lead et. The energization of solenoid 6|! causes downward movement of armature 59 against the tension of spring 8|. As armature 59 commences to move downwardly, the link 51 also moves downwardly so that the tension of spring 1li causes movementl of bell crank lever 6d and effects an operation of cup dispenser 61, resulting in the discharge of a cup from this dispenser 61, which cup falls downwardly and is received upon the cup platform 14. Continued downward movement of armature 59, causes the cams of carnming lever 44 to press plungers 3i and 3l' of mixing valve 26 inwardly. This action of the camming lever causes intermixed carbonated water and syrup to flow from valve 26 downwardly through mixing chamber S5 and through-spout 56 into the cup iid.

The mixed drink continues to flow into cup 6B until this cup is substantially nlled, whereupon the weight of this cup and its contents causes cup platform 1d to tip forwardly until stop screw 85 engages bracket 82. The forward tipping of platform it causes the opening of switch 9| and eects the deenergization of solenoid 50 as well as the deenergization of holding coil |35.` Alllie deenergization of solenoid 60 permits tension spring Si to immediately return armature 59 to its upper position, thereby turning camming lever ed upwardly to effect the shutting off of the supply of mixed drink through valve 26. At the same time, bell crank lever iii-3 is returned to its initial position ready for another Aoperation of the cup dispenser. The deenergization of the holding coil E35 permitsbeam |30 to swing upwardly into its initial position, i. e. in abutting relation to the lower end oi coin conveying tube |29.

The forward tipping of cup platform 14, due

to the weight of the filled cup, also effected the unlatching of latches |22 and likewise caused the closing of switch 98, resulting in the energization of door operating solenoid |02, which effects the raising of the door |2 so that the purchaser may insert his hand, as shown in Fig. '1, and remove the lled cup 68. When the purchaser removes the cup 68, the forward portion of cup platform 14 will turn or tip upwardly owing to the presence of weight 86, thereby opening switch 98 and reclosing switch 9|. The opening of switch 98 permits the door I2 to descend by gravity, the dash-pot serving to suitably check the downward movement of the door.

-When the door has reached its lowermost position, the latches |22 snap over the angle bar |2|, thereby locking the door in closed position and the appartus is again in condition for another operation. The purchaser when through with his cup may insert the same in an upright position through one of the cup apertures lfZ provided in the machine, and such cup will be conducted downwardly, while still in a vertical position, by avertical guide tube iid (see Figs. 3 and 5). The cup will thus fall in an upright position upon pan 90 and subsequently deposited cups will stack up upon this first cup, thereby forming a compacted mass of used cups which will require relatively little space within cabinet 2.

Since the machine of this invention is provided with ve independently operating drink dispensing mechanisms, two or more diifering drinks may be dispensed simultaneously so that a number of persons may have access simultaneously to the machine, thereby enabling the machine to have a large output of the various drinks. Owing to the use of the cooling jacket i9 surrounding the carbonated water reservoir 2l, the drinks are supplied in a cold condition such as would be obtained from an ordinary soda fountain. Applicant, by using the cooling jacket i9, also eliminates the multiplicity of complicated and expensive cooling coils as heretofore used in devices of this character.

It will be apparent that the door operating solenoid 02 and associate mechanism may be omitted, if desired, thereby simplifying the machine, in which event each door l2 will be opened by the purchaser grasping handle 20 and manually raising the door. After removing the iilled cup of beverage, the purchaser will release the door handle, whereupon the door will close by gravity and will be locked in` closed position by the latches i.

As many changes could be made in the above d construction and many apparently widely diierent embodiments of this invention could be made without departing from the scope thereof, as 'defined by the following claims, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

What is claimed is:

l. 'in a machine of the character described, a mixing valve, a carbonated water supply device communicating with said mixing valve for supplying cold carbonated water'under pressure to said valve, a syrup container communicating with said mixing valve for supplying syrup thereto, said mixing Valve having a mixing chamber therein, a second mixing chamber depending from said valve and communicating with said rst mixing chamber, and circuit closing means for causing operation of said mixing valve, whereby carbonated water and syrup are initially intermixed within the mixing chamber of said valve and are further intermixed in said second depending mixing chamber.

2. In a machine of the character described, a mixing valve, a carbonated water supply device communicating with said mixing valve for supplying cold carbonated water under pressure to said valve, said carbonated water supply device having a jacketed carbonated water reservoir and refrigerating means for circulating cooling iluid through the jacket of said reservoir, a syrup container communicating with said mixing valve for supplying syrup thereto, said mixing valve having a mixing chamber therein, and circuit closing means for causing operation of said mixing valve, whereby carbonated water and syrup are intermixed within the mixing chamber of said valve.

3. In' a machine of the character described, a mixing valve, a refrigerated carbonated water supply device communicating with said mixing valve for supplying cold carbonated Water under pressure to said valve, a syrup container` communicating with said mixing valve for supplying syrup thereto under the action of gravity, said mixing valve having a mixing chamber therein, a second mixing chamber depending from said valve and communicating with 'said rst mixing chamber, solenoid actuating means for operating said valve to open position, and circuit closing means for causing the energization of said solenoid actuating means, whereby cold carbonated water and syrup are initially intermixed within the mixing chamber of said valve and are theree after further intermixed in said second depending mixing chamber.

4. In a machine of the character described, a mixing valve, a refrigerated carbonated water supply device communicating with said mixing valve for supplying cold carbonated water under pressure to said valve, a. syrup container communicating with said mixing valve for supplying syrup thereto under the action of gravity, lsaid mixing valve having a mixing chamber therein, motive means for operating said mixing valve, and circuit closing means for causing operation of said motive means to eiect the opening of said mixing valve and the admixture of carbonated water and syrup in the mixing chamber thereof.

5. In a machine of the character described, a mixing valve, a refrigerated carbonated water supply device communicating with said mixing valve for supplying cold carbonated water under pressure to said valve, a syrup container communicating with said mixing valve for supplying syrup thereto under the action of gravity, said mixing valve having a mixing chamber therein, motive means for operating said mixing valve, circuit closing means for causing operation of said motive means to effect the opening of said mixing valve and the admixture of carbonated water and syrup in the mixing chamber thereof, means for further intermixing the carbonated water and syrup and for delivering the resulting drink for use, and circuit opening means responsive to the delivery of the drink for causing the deenergization of said motive means to eiect the closing oi.' said mixing valve.

THOMAS BRADY.

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