US1530074A - Liquid dispenser - Google Patents

Description

March 17, 1925.

A. E. ECKERT LIQUID DISPENSER Filed Sept. 24

Patented Mar 1?, 1925 V Ul'll 5 ADQLEF'H nnonnn r, OF OAK PARK, ILLINDIS.

LIQUID {)1SItIzlIN'SER.

Application filed September 24, 1924. Serial No. 739,450.

To aZZ 11:71am ii may eonccrn:

Be it known that I, ADOLPH E. ECKERT,'

a citizen of the United States of America, and a resident of Oak Perl c Cook County, Illinois, have invented a certain new and useful Improvement in Liqnid Dispensers, of which the following is a specification.

' This invention relates to improvements in liquid dispensing devices, and particularly in to apparatus used, for dispensing syrups in connection with fountain equipment for serving soda water, ice cream and various mixed beverages, such as disclosed, in my prior application Serial No. 657,663 filed if; ln u'st 16. 1823. i

1 6 object of the invention to provide an'irnprove l construction for a dis-- )ensin device characterized es eeiallv h l 27: 7

" the simplicity of mechanical detail, uni- --formit3; and regulation of the volume oi liquid dispensed, of operation and other features tending to promote greater economy and better service.

A further object of the invention is to :5 provide a dispenser in which the mechanieal and moving parts are so designed and constructed as to permit. the complete and ready disnmnl-li'ng of the apparatus for the purpose of cleansing; and sterilizing, if'neo- 3o essary. As can be readily appreciated,

40 without the use is illustrated Figure l is a View in vertical. section oi the dispensing le ice.

Figure 2 is an enlarged cletuii View of the pomp operating mechanism showing the parts disconnected for the purpose of removal.

I taken on .line i, 4, of Figure 1.

Figure 3 is an enlarged (let-ail View incross sectiontaken on line 3, 3, of Figure l, and

Figure I} a detail view in cross section The dispensing device is housed within and forms a part of a jar or container 1 from which the liquid is dispensed. The jar 1, is removably mounted Within an ice compartmens 2, and having oblique front wall 2* and an oblique portion in its top wall having an opening in which the jar is inserted, the latter assuming an inclined position of say 30 to the vertical, and fee"- ing rearwar lly from the service counter.

The jar 1 is provided with a shoulder 1 at its upper end which engages around the opening in the compartment 2.

The jar hasn relatively large opening in its top well, preferably of an oval slm )Q and surrounded by a flange or lip 1". A. flanged plate 3, fits over the openings, and not only forms a closure for ihe jar, but serves as 21 supporting plate for the dispensing niechar nism, so that all parts can be removed as n unit in the refilling or cleaning of the ar.

Near the lower edge of the plate 3, is a fixecl spout 4, exicnding rearwardly in horizontal position, and having a slowntnrnetl end. The spout is provided with an extension, below the plate 3, having the form of apipe 5, extending parallel to'ihe axis of the jar and connected with a cylinder ti, inonntcii n shori distance below the plate 3,

and located generolly in the upper portion of the The cylinder is further connectecl with the plate 3, by means of a slotted stud or post '7 soirl post and pipe 5 aciing to support ihecylinder at (limnetrically opposed points "to the plate 3 above.

'Within the cylinder is :1 piston 8, secured to a piston r-nrl 1? extending through the upper end or head of the cylinder.

{he eml of the PlS -Ull roil is 0 slot} S) extending a short distance ongitnilinnlly' of the rod. Supported my the post 7' is n lever ll pro- \iileil lniilwzi its lower ed e will! a notch or recess 11*, zulapti-(l to engage u pin 7* oxlmnling: transversely oi the lot in the post 7, snitl notch between its ends and along and pin forming a fulcrum removably supporting the lever 11. At the end of said lever adjacent the piston rod 9 is formed a cam-like head or enlargement 12, which enters and engages in the slot 9 at the upper end of the piston rod. At the opposite end of the lever is another and slightly larger head 13, having a rounded cam surface at its upper edge. This end of the'lever has a similar form of connection with a plunger consisting of a rod.14, passing through the plate 3, and provided at its upper endwith a head 15. At the lower end of the rod is formed a cam slot 11 opening downwardly and adapted to straddle the cam head 13 of the lever 11.

As clearly shown in Figure 3 the fulcrum pin 7 extends outwardly at each end, these end portions forming a support for a spring 16, which acts to oppose the pressure on the plunger head, in operating the pump and to restore the parts to their initial position after the pressure has been released. This spring is of a special form consisting of wire bent to form two coils 16 arranged in axial relation to each other and connected by a U-shaped portion 16'. The opposite ends of the coils extend in straight free end portions 16, 16, at right angles to the U- shaped portion 16" and terminate in semicircular hooked extrcmities 16, 16", bent at right angles and toward each other. This spring is supported on the ends of the pins, each coil 16 being inserted on one of the pins, with the U-shaped portion )6 extendmg lengthwise of the lever 11 toward the piston end, and straddling the top edge thereof, the free end portions 16, 16 extend in the direction of the top plate 3, and along the post 7, the hooked ends passing around the post from opposite sides. The spring wire is sulliciently flexible to permit the spring to be easily removed by springing the hooked ends free of the post, thus allowing the coils to be taken from the pins, thereby releasing the entire spring. To replace the spring the reverse operations are carried out-a matter of a few seconds.

The plunger rod 14, as already explained, passes through the plate 3. and as a bearing therefor a cylindric bushing or collar 17 is mounted on'the plate and projects upwardly therefrom. Extending lengthwise of the initial base of this collar is a slot 17 adapted to be engaged by a pin 14" projecting from the plunger rod it near its lower end at right angles to the cam' slot 14 adjacent thereto. The slot 14: in the base of the collar is disposed at an angle of 90 to the normal position of. the p n. so that it is necessary to rotate the plunger rod through this angle before the two will register". Obviously, this cannot be done unless the lever 11 is released from the cam slot 11", and 1s a. result, the plunger is prevented from sliding upwardly through the collar by the pin 14 so long as itis held against axial rotation by the lever 11.

However, by removing the spring 16 in the manner described, the lever 11 can be moved endwise sufficiently to release one end from the slot in the piston rod, and then completely removed. This permits the plun ger rod to be turned until the pin 14" registers with the slot 17* whereupon the plunger rod can be withdrawn entirely. Thus it will be manifest that all of these parts can be readily disconnected and entirely removed from the apparatus.

Associated with the plunger rod is a regulating sleeve 18 which surrounds the plunger rod and encloses the collar 17, Inside of this sleeve 18 is a plurality of longitudinal slots 19 which vary in length. These slots are adapted to register with and engage a key 20 extending axially along the outside of the collar. By lifting the sleeve to disengage the key from a particular slot. 19 engaged thereby, the sleeve can be rotated to bring another slot opposite said key, thereby elevating or lowering the sleeve with respectcto collar 17, and likewise decreasing or increasing the stroke of the plunger. In this way the volume of liquid dispensed by a single stroke of the piston can be regulated. This feature of the apparatus has been fully discussed in the prior applica tion, and since it is not an essential part of the present invention. need not be discussed further. However, it is to be observed that with the removal of the plunger rod from the bearing collar 17. his regulating sleeve also becomes readily tached.

Referring again to the cylinder 6, and the piston 8, the latter consists of a metal disk secured to the lower end of the piston rod and having passages 20 therethrough offset on either side of the axis of the piston rod. On top of the piston is a check or flap valve 21, which opens and closes as the piston travels in its downward and upward stroke. Further details of the piston valve may be omitted as it is more fully described elsewhere. At the lower end of the cylinder is a removable head 23, having screw threaded connection with the cylinder through the medium of an internally threaded flange 23". At the central portion of the cylinder head is a. hollow boss 24 into the bottom of which is screwed'an inlet pipe 25, extending axially to a point just clear of the bottom of the container 1. The upper end of the inlet pipe projects a short distance into the inte; rior of the hollow boss 24 and forms a. lip on which seats a flat metal disk 26, forming a check valve for controlling the intake of 3: liquid into the lower end of thecylin- Just above the-valve disk 26 is a pin extending diametrically across the va ve cavity above the disk. As shown in Figure 4 this pi? ed at r This to permit the complete disasmamlfly l. pump and operating l'nemlwars.

a liquid dispenser, the combiuiit-im'i snnp con'lprising a cylinder. {mum ton mil a pump support comp Eng 1 and a POSl PGlUlQCtlllg said plate mil index", a plunger rod mountmi will lever fulcrumwl intemnecliatu 011m :t-nsl having cum slot cunnecfi i in may ()Sli! ends wlth said piston and plun- Of a 2i and, a spmng msmmcl adjcmmt ths mm of said lever and (letaclmblv. to new w-iamflval of said lav/er and Saul p mia, a liquid dispenqor, Hm cnmlximnun up mmiprising 1L {:ylinilm a plstun Yon 1nd, a pump support mmpii ing ml {L post (mmwting said plate anal Kiev, 9. plunger Y")l mounted ll? said :1 law? i'uli'rmnr-xl intm'mmlmu;in; l'lavir Pill-1 and slot comm-rim: wt-

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a spring mnumw'l niljzw-ont In? I "rum 0f Said levvr mill swing to 2% L Tr on its fulvmm, said spring 2; ,bali'lle {0 permit flu 'ltlaalrmwl li "yr, out of opv'rativc vounwtiw sink lam I tfe'z'lu." l pv'mn and plunger rods,

lm in 2i lzquinl (llspvnsw, film comlumhmi i lriie, a cylinder (lepmulmg from 21ml commuting said plate with mm Y. M mud cylinder, :1 pwlon :11 said (glinmg: :1 plsfon rocl exlr'mling axially i mm), nl cylinder ad acent said pus! :1 age?! lzmgm rml nmunlcrl. for enrlwiw movmiient 1m; said post a 1mm flzlcimnml lfllkifit? mi ls in a slut insulin! in Slllfil '7 Wal of Fillx'l lm'vr mgugmg mm 1 flu: M515; of Said piston Llllii plunger Eng ileiaPllably mammal on will living :1 pm'llon :ulap ml to engage ii In a liquid dispenfivr, the combination a support-for said vlin lur, plat:- and a pust commuting ill one end of said cvlindei. ii on mzllrl cylinder having a iston all (10ml i nxially r'mm said cylinder an:

H1 post, :1 plunger rod mounted adja- Ll post and pm'nllvl therewith, lever I :lu'mwli a lwngitudinal alot in mid Hlltl fulurumwl intvrmmlinh: it"s r-mls Hm vwla nf ltl lever engaging a Film" in will piston lUll mail an apmling in Said ylungri r031 21 ii-united on wild post and having a 1'1 zulnpiml to Engage said li' -13 said 1 19 :ioz'nm v holding suicl lPVf'l on its T. 1 21 0. liquid llispcnse'r, tlm cmnhimatiun ml a wimp mmz n'ising a cylinder, piswn and eud uai support compms' ll; 2;"6321 I plate and a post connecting said plate and said cylinder, and provided with a longitudinal slot theretln'ough, a lever passing through said slot and l'ulcrumed intermediate its ends, a plunger rod extending through said plate, said piston and-plunger rods having cam slots adapted to be engaged by the ends of said lever, and a spring detachably mounted on said post and engaging said lever.

8, In a liquid dispenser, the combination o t' a pump comprising a cylinder, piston and piston rod, :1 pump support comprising a plate and a post connecting said plate and said cylinder, and provided with a longitudinal slot therethrough, a lever passing through said slot, :1 pin extending transversely of said post and supporting said lever intermediate its ends, a plunger rod supported in said plate and provided with an endwise opening slot adapted to be en.- gaged by one end of said lever, the other end being insertable in a slot forn'ied in said piston rod, and a tension member comprising coils mounted on the ends of said pin, and end portions engaging said lever and said post, said spring being detachable to ell'ect the removal of said lever and said plunger.

2). In a. liquid dispenser, the combination of a pump and a support therefor, and pump actuating mechanism, comprising a lever remo ably supportml intermediate its ends on a fixed fulcrum, and provided with cam surfaces at its opposite ends, said pump including a piston and piston rod, the latter being provided at: its end with a slot adapted to be engaged by one end of said lever, a plunger mounted in said pump support and pre vided at its lower end with an endwise opening cam slot adapted to engage the opposite end of said lever and a removable tension member acting on said lever.

10. In a liquid dispenser, the combination of a cylinder and a support therefor, a piston in said cylinder and a piston rod extending through the head of said cylinder, a lever removably fulcrumed intermediate its ends adjacent said cylinder, and having at -am and slot connection with said piston rod, a plunger rod mounted in a bearing in said pump support, and having a cam slot at its free end adapted to engage the adjacent end of said lever, and pin adapted to register with a notch in said bearing whereby said plunger may be removed when disengaged from said lever.

11. In a liquid dispenser, the combination of a cylinder having a removable head at 'one end, a support for said cylinder, a piston in said cylinder having a piston rod extend ing through the supported end of said cylinder, a lever fnlcrumed intermediate its ends adjacent said cylinder and having a cam and slot connection with said )iston rod, a plunger rod extending through said cylinder support, and having a, cam and slot connection with the opposite end of said lever, and a spring reinovably supported on said pump support and acting on said lever, whereby on the removal of said spring, said lever and plunger can be detached from said support and upon the removal of said cylinder head the piston and rod can be removed from said cylinder.

Signed at Chicago, 11]., this 13th day of September, 1924.

ADOLPH E. ECKE RT.

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