US1794641A

US1794641A - Liquid-dispensing device

Info

Publication number: US1794641A
Application number: US326008A
Authority: US
Inventors: Aurin E Payson; Miner P Wetmore
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-12-14
Filing date: 1928-12-14
Publication date: 1931-03-03
Anticipated expiration: 1948-03-03

Description

Mal'h 3, 1931- A. E. PAYsoN ET Al.- 1,794,641 LIQUID DISPENSING DEVICE 1928 2 Sheets-Sheet 1 Filed Dec.

lNvENToR ATTORNEY .N m UM. M. W. .U A.

Patented Mar. 3, 1931 *l i osi-rs AUninn`1=AYsoN nNnMNn-n r.wETivroniaorfnonwicmooimncriour v LierT1D -insrnnsinGfl Janvier.

l Alipiication'fiied Decemberii, 192s. seran No. 326,008.

' Our invention is for a novel construction of dispensing apparatus having a spherical heat-insulated container connected at the bottom with discharge mechanism which 'auto 5 matically measures a predetermined quan-l tity of cooled or Vhot liquid'. Thefdischarge mechanism, which maybe coin-controlled or operable as a reedispenser, has a valve connected to a dash pot for. so tindingthe' movementv of the valve to closing position lthat a measured amount 'of liquid is discharged at each operation ofthe device. The spherical container iter the liquid is preferably a donc# ble-walled vacuum jar of glass having a filling openingat the topandV a discharge opening at the bottom, these'openings being in substantially diametric alignment as inte* gral tubular vextensions of the ar; The dis'- charge opening of the jar. is littedwithan velasticplug or bushingto which a pipe is connected. 'loprotect the spherical glassj ar from injury, it is enclosedk in a spherical casing, usually of metal, .andhsupportedat the top and bottom vby shock-absorbing means,A

such as rings,l or collars of cork, rubber and the like. These rings or collars also serve as heat insulators'. by holding the jar outV of contactwith the metal of the casing.

|The lpractical advantagesand novel features of our invention will lbe understood from a detailed description of the accom- .panying drawings, in whichp lig.- 1 showsv avertical section through a liquid dispenser embodying our invention,

f 35 the coin-controlled dischargermechanism bespheri-cal sections 12 `and 13. The ends of these sections overlap iat 14C to form tight joint, and screws 15y or otherv removable fas? front viewof thelower tenin'g members holdthe sections rigidly together to form a spherical outer casing. The

parts

10,12 and 13 may be cast of iron, aluminum, bakelite, or other suitable; material,

and'the lower section 13 Lmay be. .cast inte.-

graliwith the hollow stand 10. The basel portion of stand 10 has a. recess 16? to permit-the placing of a glass or cup 17 incorrect receiving position'. I

` A 'spherical ycontainer J is supported in the -vertical casing C, and this container is preff erablyia double-walled lvacuum jar of glass'v having an inner wall'18 and an outer wall'19, A The space'20 between these'walls is evacuated 1 v for heat-insulating purposes. f The: inner wall 18 has anuppercylindrical (or slightlyfconil cal) extension 21 and a similar extensionv 221 at the bottom. Likewise,.the outer Wall19' is provided at the top and bottom'with tubularextensions 23 and 24..' The twopairs of extensions 21-23 and 22-24 are sealed or fused togethery at the annular edges .25"and 26l respectively. It is usual to `insert spacing pads k27 between the' spherical .glass walls 18 'andlQ of the jar, these pads'bei'ng generally asbestos disks held together bya Wire'28'. The

Vprimary. purpose of these pads is touh'o-ld the walls 18 and19 iii-concentric spacedrela-v l tion during the assembly of the jar,'and they also serve as. shock-absorbers durin'gthehan dling anduse ot'theapparatus... It will be noticed that the vacuum spacel2OJoijar extends into the double-walled: top .extension 21-28 `and bottomfextension22T-24sl The f jar'may be'assembled in thiswayir rI he inner'an'd--outer walls 1 8.` andj-19 with Atheir integralrextensions. areblown separatelyin suitable molds. The'outer spherical wall or bulb 19 is cracked along its; equator to form twohemispherical halves@ The up.;V

per'lia'li' ofbulb 19 isinserted over the top vrof the inner bulb 18, the twoparts beingheld in spacedl concentric relationby the pads 27,. I

The neck extensionsY 2lr and 23 areV fused atV the `circular. edge 25. vThe nextv ,step is to 9* place the lower half of buflb119 over the lower halfofthe inner bul-bor wall 18, whereupon the two halves of the outerbulb are sealed togetheralong the previouslysevered edge;v Thefbottom.extensions 221and 2e aresea-led at When the jar J is of large size, it is. preterably made of pyreX glass, or other glass capable of standing up under conditions of use. The spherical shape of the jar gives it not only unusual strength, but also a ,maximum capacity in a minimum space. Y To hold the double-walled vacuum -jar J irmly in the outer spherical casing C, Vwe provide the latter with a cylindrical or slightly conical extension 29 adapted vto hold a collar 30 oi' cork, rubber or similar material.'

The extension 29 terminates in a horizontal flange 31 against which the collar 30 Vis jammed tight, and it may be glued orV cemented in position if desired. The collar 30 has a central opening 32 tor receiving the cylindrical extension'23 of the ar in a tight fit. The rounded top edge 31 ot the jar engages an annular shoulder'33 of collar13O. A lat ring 34 of cork, rubber or similar material is placed on the bottom of 'casing section 13 to engage the bottom of the spherical jarv J; lt is clear from llig. 1 that the jar is heldiirmly in casing C by the collar 30 and ringV 34in such a way thatthe jar is positively held against lateral and axial movement. 1 The glass of the jar does not touch the metal ot the casing. Thecork or rubber supports` 30 and 34 not only act as shock absorbers, but also as heat insulators. The bottom extension 22-24 of the passes through aligned

openings

35 and 36 in ring 34 and casing section 13.

The bottom opening ot jar .l is closed by a rubber bushing 37 which carries va metal sleeve 38 having a ilange or collar 39 at its upper end. The elastic bushing 37 has an annular shoulder 40 at the bottom adapted to bear against the lower edge 36 of the The lower endV 41 of sleeve 38 is screwthreaded and has mounted thereon a flanged nut 42,

It is evident `from Fig. 1 that, by tightening the nut 42, the rubber bushing 37 is compressed and forced against the` cylindrical glass wall 22 to make an airtight joint. T he lower end of sleeve 38 is threaded insid'eat 43 to receive a standard pipe fitting 44 having a horizontal extension 45, which projects through an opening 46 in the hollow stand 10.

The4 discharge pipe/l5 is connected to a -faucet 47 which carries a recipr cable valve 48 to control the outlet 49. rllhef valve stem 50 is connected to a plunger 51Vwhich carries a piston 52 mounted to operate in a cylinder 53 withY an airtight fit'. An expandingA coil spring 54 surrounding fthe valvestem 50 in VV'the cylindrical housing 55 normally holds the valve 48 pressed against its seat 56. The

piston 52 `may be a flanged disk of flexible' material like leather or rubber clamped on the rodY 51 between pair of metal disks 57 and 58. The disk 58 has a cylindrical flange 59 which slides easily in cylinder53. It is evident that the parts 52 and 53 constitute a dash pot for controlling the movement of the discharge valve 48. The chamber 60 ofthe dash pot has an air intake opening 61 controlled by a flap valve 62. An air bleed or exhaust opening 63 is regulated by a screw 64 vto time the action of the dash` pot when the spring 54 movesthe valve 48 to closing position. "yV hen the piston 52 moves toward the lett, the flap valve 62'automatically opens to Vlet air in through 'the opening 6l, so that the valve 48is opened easily and quickly. The

' air intake 6l is open to the atmosphere through an opening 65 in the casing 66 which encloses the valve-operating mechanism. When the piston 52 returns to normal posi* tionvunder-the action oi spring 54, the valve 62 automatically closes and the air in chamber 60 escapes slowly through the opening 63.

valve'plunger 5lrcarries anV upright arm or bracket 67 which terminatesin an eX- tension 68 arranged to form amovable wall or continuation oa coin chute 69. The iront wall of casing 66 has a coin entrance slot 7 0 through which 'deposited coin rolls down the chute 69 until it strikes the projecting shoulder 7l. As shown in Fig. 1, the deposited coin 72is supported in upright position between the lined shoulder 71 andthe entension 68. of the movable arm or bracket 67. A plunger 7 3, which may be a flat bar or plate, is slidably mounted in a horizontal housing 74 arrangedv in vertical alignment with the coin'chute 69. The plunger 73 has an entension 75 which passe tirough a chamber 7 6 `and terminates in a push button 7 7. An eX-` panding coil spring 78 in chamber 76 bears againsty a disk 7 on extensionv 75 and holds the plunger 73 in extreme outer position, as illustrated in Fig. 1. 1Whenthe plunger 7 3 is pushedin after. the deposit of a coin*D the Vnose 8O at the rear end of the Vpir-.ngerengages the edge oi coin 7 2 and pushes the latter rearward, at the same time moving the arm 67 and all connected parts in the same direction. ln other words, -tlie deposited coin 72 forms a temporary. mechanical connection` betweenV the hand-operated plunger 73 and the valve 48 where'bT .the latter is moved into o en osition when thel knob or button 77 is pushed in.

J ust before the plunger 73 reaches the end of its rearward movement, the cam edge 81 forces the Vcoin 7 2 `downward. ont of engagement `with the shoulder-71 and the upper end 68 of theV movable arm 67. `Being thus deprive/cl ot its support, the coin 72 drops out of the coin chute 69 to the bottom ot the casingV suitable lock 83 normally closesthe casing against tampering. Y Y

When the-'discharge 'valve `48 is opened ,by the inward movement of plunger Z8 afterthe deposit vofancoin, the flap valve 62 Iis opened STO bythe sucking actionofthe-piston 52, so'that the'discharge val-ve 48 is quickly opened Withf out opposition. .x I-IoWevenafter thecoin7-2 has been discharged-during the `final inward movement of plunger 73, the. air intake valve 62 `is automatically closed, yand the return movement of valve 48 tonormal` position is re'-V f tarded by the air. in chamber 60.' f v Thisv .air vgradually escapes to the'atmospherethrou'gh the air bleed 63, Which lis so `adjusted'gthat aV predetermined quantityof liquid lovvs intov the receiverv 17 before the valve 48 is 'closed against-its seat 56 by the coil springv54. 1 'The recess 16 in the base of vstand Y10y acts as va guide :tor the correct positioning of lthe -cup or glass 17 -beneaththe discharge v'ende of Pipewf' 1 'i f 7 Thevspherical vacuum jar vJ may contain any 'suitable liquid. to. be dispensed, either hot or cold, such as coffee, orangeade, llemonade and so forth. Iii' the apparatus ijs to be usedfor free dispensing 4(like a Water cooler inyan oliice) the parts 68 and 73l are permanently `connected-in any practicalvvay, so that no coinis necessarytollthe receiver 17;

The top opening ofijar. Jis 'closed by'a stopper Y 84 Which may be cork, rubber andthe like. The stopper'84is attached toa sheet metal cap 85, which isfshaped'to' iit over the extenv invention, any other suitable form of vacuum f' cal coin-controlled device.

jarimay be combined With any other practimay use a ycylindrical or'fbottle-shaped jar supported in Vupright or inverted position. v

' Changes and `modifications in the apparatus Aen will probably occur tothose skilledvin the art Without departing from the scope of Vour v invention as delinedin'the appended claims Ve claim as our invention: l. Liquid dispensing apparatus compris ing a double-Walled vacuum jar substantially spherical in shape and having diametrically opposite openings at the top-'and bottom,"

an outer casing in Which said jar is supported in upright position, a discharge pipeconnect* ed to the bottom opening of said jar and extending out of said casing, and a'valve for controlling said discharge pipe.` p

2. In. liquid dispensing apparatus, the combination of a sphericalk meta-l casing, a spherical double-Walled vacuum jar ofkglass mounted in said casing, said jar having dou- For example, We

ble-Walled tubular' extensions arranged ydiametrically opposite `to form topr and bottom openings, heat-insulating means in said casing for firmly supporting said jar at the top andfbottomifn upright positioniout'.oi1 contact Withthe metal of said casing, and* adis- ,Y 3. Liquid'- dispensing apparatus comprising a; double-Walled vacuumzj arfsubstantially `spherical in rshape andfhav'ing-ldiametrically` oppositefopenings at the` top and bottom,an outer casing in which said Yjaris supported in upright position, anfelastic bushing supported: in' :the bottom opening vof :said jar, a :tube v S0 nected tosaidftube and extending out of said W carriedby saidbushing, a discharge ,pipeconcasing, `and means forI controlling saiddischargey pipe.

.charge pipe connectedfjto said lower opening. v

4. In liquid dispensing apparatus, theco-m;

bina-tion of a container having a neck at `the top and a discharge opening atthe bottom',

va pipe vconnectedtosaid discharge opening,

a slidable valve in said'pipe, a dash pot op. erated by said valve to retard the return of the valve to closing position, Wherebya predetermined quantity of vliquid is discharged ateach operationvof thedevice, and ineansfor manually opening said valve.

' 5. Liquid dispensing apparatus compris ingajar having diametrically opposite openings at the top Aand bottom, I`an outer casing infvvhich. said V'jar is supported in upright position, adischarge .pipe connected to the bottom. opening of said-J ar and extending out f rofsaidcasing,*ai'handsoperated valve in said discharge pipe, and-means for timing there- :turn mov'ementoi:l said'valve to cause apredetermined quantity fofrliquid f to vbe discharged at each operation of the valve. 6. In liquid dispensing apparatus, the

combination Vvo a spherical casing having an kfo'peningat :thetbottom and :a tubular'. extension o n top, said extension ybeing provided With an annular flange defining an opening,

a" non -metallic lannular member `held' in said extension, a sphericaldouble-,Walled vacuum 'jar lhaving-.a Ineck fitting firmly'in saidfganp nularmember,saldfjarhavingatubularprof.r

" jection fat the -bottom extendingthrough'the bottomvopening of. said casing, anon-metallic ringinterposedbetvveen the adj acent bottoms fof the casing andthe jar, and a discharge pipe connected tofsaid tubularprojection. p 1 7.- In liquid dispensing apparatus,. the f combination of a spherical casing having an Aopening at thebottom andl a tubular extension on top,!s' aidv extension being providedwith anv t' annular vr`iangedefining-*an opening, `a' nonmeta'llic annular member'held yinfsaid extensionya "spherical doub'l'eftvalled vacuum.jj'ar I) having `a neck ii'tt-ingirmly in" said :annular 'Y member, said jar'havin'g a tubular-projecv tion atthebottomextending through the. bot'- tom fopening -oii` said `casing,V a nonmeta'llic l'rin,f Jj` interposed -Jb'etvveenl the'. adjacent bot*- toms of the casing and the jar, an elastic bushing adjustably mounted in the bottom projection of said jar, and a discharge pipe connected to said bushing.

8. Liquid dispensing apparatus compris.

ing a double-walled vacuum jar substan-tially spherical in shape and having diametrically opposite openings at the top and bottom, an

' outer casing in which said j ar is supported in Y upright position, an elastic bushingsupported in the bottom opening of said jar, a tube mounted in said bushing and having a flange at one end, the other end of'said tube being screwthreaded outside, a nut mounted on the Y screwthreads of said tube, .whereby the tighteningof said nut expands said bushing radial- Vly against the wall of said opening to make an airtight joint, a discharge pipe connected to the lower end of said tube and extending out oic said casing, and an operable valve in said discharge pipe.

Y Y9. In liquid dispensing apparatus, an outer spherical casing comprisii'ig a pair of hemispherical sections separably connected along an equatorial line, a stand projecting downwardly from the-lower' section, a spherical double-walled vacuum Jar in said casing, said jar being provided with tubular extensions' arranged diametricallyopposite to orm'an upper inlet opening and a lowerV discharge opening, a non-metallic member at the bottom of said casing for supporting said jar,

a non-metallic member at the top of said p casing for engaging the upper tubular eX- tension of jar, whereby the latter is firmly supported out of contact with said casing, Ya valve-controlled discharge pipe connecte-d to the lower extension of said jar, and a removable stopper tting into said upper eX- ltension. Y

Y l0. In liquid dispensing apparatus, `an outer spherical' casing comprising apair of hemispherical sections separably connected mechanism for controlling said outlet to discharge Va measured quantity of liquid.

12. In liquid dispensing apparatus, the

combination of a heat-insulated jar having is discharged at each operation ofthe mechanism.

l 14. In liquid ldispensing apparatus, the combination otra double-walledfvacuum jar supported in substantially vertical position7 said jar having an outlet at the bottom, a dis-V charge pipe connected to said outlet, a valve in'said discharge pipe, and mechanism for vautomatically closing said; valve afterV aV deiinite time interval'. 1

l5. In liquid dispensing apparatus, the :y

combination of'a container jar having an outlet` at Vthe bottom, al discharge pipe connectled to said outlet, a valve for controlling said pipe, and aV dash pot, connected to saidlvalve for timing-the. return movement thereof,

whereby a predetermined quantity of liquid isrdischarged at each operation oi' the valve.

AURIN'E. vPAYSO.

' MINER P. VETMORE.

along an equatorial line, a stand projecting downwardly from the lower` section, a sphericaldouble-walled vacuum Jar in said casing,

said jar being provided with tubular exten# Y sions arranged diametrically Opposite to form an upper inlet opening and a lower dis'f charge opening, a non-metallic member at the bottom of said casing for supporting said b j ar, a non-metallic member at thetop of said .casing for engaging the upper tubular eX- tension of said jar, whereby the latter is ifirmly Vsupported out of 'contact with said casing, a valve-controlled discharge pipe-con- I nec-tedto the lower extension of said jar,va

housing attached fto the lower part of said casing, and hand-operated mechanism in said housing for actuating said valvegto deliver a measured quantity vof liquid at each operation.,V ifi M 1l. VIn liquid dispensingapparatus, the combination of a heat insulated jar having -an voutlet,"and i-automatically timed" valve