US1826603A - Counting and indicating device - Google Patents

Description

Oct. 6, 1931. J. M. DAYTON COUNTING AND INDICATING DEVICE Filed Jan.

21, 1929 5 Sheets-Sheet Oct. 6, 1931.

J. M. DAYTON COUNTING AND INDICATING DEVICE Filed Jan. 21, 1929 5 Sheets-Sheet 2 Oct; 6 1931. DAYTON 1,826,603

COUNTING AND INDICATING DEVICE Filed Jan. 21, 1929 5 Sheets-Sheet 3 Oct. 6, 1931. J. M. DAYTON COUNTING ANb INDICATING DEVICE 5 Sheets-Sheet 4 Filed Jan. 21. 1929 IIiI Jawnesfllpay fora,

0st. 6, 1931. M, DAYTON 1,826,603

COUNTING AND INDICATING DEVICE Filed Jan. 21, 1929 5 Sheets-Sheet 5 f a tent ecl (jet. 6

l Inseam PATENT orrrce "JAMES it. narrow, or 'ronnme'ron, CONNECTICUT countrrne anninnroarrno DEVICE A l icai-ion filed January 21,1929. Serial No. 334,634f

@This invention relates to improvements in counting and indicating devices, andmore particularly to such type of devices as may be applied to dispensing apparatus. v

One of the objects or" the presentinvention is the provision of g a compensating mechanism by which the devicemay 'beattached to any one ofanumber of pumps having diliermg lengths or" stroke for the delivery or a calibrated quantity, for the purpose of compensating for this differing length of stroke.

rinother obj ectofthe presentinvention is the provision of a driving systemwhereby the movements in both directions of the pump to which the device is attachedmay'be totalized,

' I vthe particular connection for this purpose be- "ing characterized by its Simplicity, and the small number of parts employed.

' A "further object of this invention is the provision of a driivlng system and the employment of a fast andfa slowfindicating hand, movements of the pump in both directions being totalize'd by respective trains, the

final elements of each train being coupled'together for movementin un son, with the provision of aClJLIIlCt trains-for driving respectively the slow and the fast-hands.

f Stillanother object ofthis invention is the provision ofa resetting means for portions of the countingand indicating device whereby such portions may be reset to a predetermined minimum quantity ing asingle and quickoperat on and a single mampulatmn. f

' A still further object ofzthis invention is the provision. of means whereby the resetting accomplished by a disconnection of the driving. system leadingto such portions of the counting and indicating device.

Stillanother object of this invention is the provision oi. a resett ng mechanism for'parts :of the counting and indicating device which normally is without operation upon the system and is not prepared for such operation withthe inclusion ofnieans whereby a simple manipulation will prime such resetting means ioroperation, -.while' retaining the m wdby. an abrupt release of the parts thereother parts in 1 their' normaPposition, folby reset so that they are quickly andfimme- Fig-l1, showing parts of diately returned to a predetermined position.

Still another object of this invention resides in theprovision of fast and slow hands for indicating the quantities dispensed, with separate drivingtrains therefor, and an audible'alarm' which is actuated upon the completion of a predetermined angular movement of such indicating hand.

Other ob ects and features of this inventionwill appear in the course of the following specification and claims, taken in conunction with the drawings which represent one illustrative form of the construction of the device embodying the present invention. In the accompanying drawings, the device is illustrated as contained within a casing adapted to be mounted upon the enclosing and supporting standard of a gasoline dispenslng pump having a cylinder which usually is slightly difierent in diameter for dilferent pumps of a series, with areciprocating piston moving therein to suck and force the gasoline at each direction of movement.

' In the drawings:

Figure l is a conventional view showing the relationship of the dispensing pump with the counting and indicating device, showing f the latter from'the rear with the usual supporting and containing case removed. Fig. 2 s a vlewon alarger scale but similar to the showing ofthe rear'of the indieating and counting device of Fig. 1, with cerbut withithe parts in a position occupied fol lowing a resetting operation. Fig. 7 1s a sim1lar section on line 7-7 '0 F ig. 11, showlng the rock arm which supports the slovvwhand, and parts ofithere 7 settingpl'ungerin section.

ltially on line 8-8 of Fig. 7. v

'Fig. 9 is a viewsimilar to-that'of Fig. 7,'

- sta ntial ly on line 13%13 of Fig.6.

Accor Fig. 8 is a sectional view taken substan Fig 11 is a sectional vievvftak'eii substantial 1y on line 11 11;o Fig. 6.

Fig.12 is a similar sectioiial view taken on '7 I the axis ofthe hand stafl.

'Fig. 13 is adetail sectional vievv'taken'sub- Fig. 14 is adetail'view taken substantially ding; to this lnven tion, a reciprocat- V l linggpumpiis Connected by a variable'raek arm toithe'aetuat ns rieiqn o ail hd a ea 1 counting jdevice,; with means to "establish a given p i dftha gef. t nda jrflfi i adjustment of the e-effect of the rack upon the pinion. This pinion is caused to operate gear I to move the cou'n'tingor total ployed, the slow hand will -move around I ijzingmechamsm itself, and to move a pair o f ha- '1ds atgdiiieringspeed ratios. F or example, theindicating dial is graduated to indicate gtvventy gallons, and a pumplhavi ng "a, capacity of one gallon, per stroke is em;

- by one complete revolutiou for each 1 tvgenity complete T strokes: While the; fiast, [hand Will move aro'undthe dial oncfei for each cOmplete'strOlm It Willthus be seen thatthe f cfast i hand furnishes a readymeans for estimatingftheffrictional parts of a gallon which are delivered by partial strokes of the a trated example of such ractions fifths of "The is atall tiinesconnected to the actuating pinion so that any movement ofithe'p'u'mp will result in a totalizing'of such delivered quantity; Onthe other hand,'the

; driving system. rqr theindicatiiighandsmay betemporarily disconnected'orbrokenso that the hands maybe restored to Zero irrespective of-the positidn of movement ofthe pump.

" accomplishedbythesainedevice which prepares and operatestheyresetting mechanism iszalvvays'preceded byga disconnection; of the u driv'ing. trains,'and aiu'll resettingis-neces sarily accomplishedfbeforethe driving trains f maybe returned to operating engagement. If

1 i, *lhe arrangement ofa the-partspermits and r-. includes"the provision of gears-of large dif l-itsel f; and' nemb'er's are provided in suchrelationship toone another that theresetting ameter; having a large numberi'of teeth for establishing the driving connections; afore 4 said,,;,. j g-t t in he v n of; ai ai ure 0f gears to immediately accurately "mesh manner} I n :The piston rod Roflth'e pump-carries a transversebracketlE having lugs 1O thereon I airis jof sleeve 19 pump; giving a direct indl'cationm the 'lllUS- upon ret'urnto appropriate driving engage ment; avery'small percentage of a revolution will be occupied by initial movement of the driving train before 'the fi'nal and accurate engagement occurs. In the illustratedcylinder C and apistonP moved relatively to :o'n'e'i another by? any csuitable mechanism (not shown); This pump is provided with [the inlet conduit 1 land tljie dispensing conduit D connected to a .four w'ay valve V 7 example of execution, at V double-actingliquid dispensing pump has a whichcontrolsthedeiiveryof liquid through one of the'lvalvej conduits B to oneend of the 7 cylinder (Land discharged from the other end of-the cylinder through the other valve conduit-LB to pipe" D'; AalLin Well known which support and permit the rotation of an usting; screw 11' having ahead 12 and bearing aftravelin'g nut 13 lvvhic'h in turn supports a pivotl l for] the vrack arm 15 having teeth engaging with the drivingor actuatingpinion 16 tithe indicating and counting device, Itobe described hereinafter. 'As shownlm F1g;j,3, the rack-15has a guide bar "15a fastened thereto and presenting'its sedge against a "noseil7' "of theifsupporting bracket ofthe shaft for the pinion 16 A sleeve '19 ii on this lattershaft} receives" a swinging plate 20 having a pfairof rollers- ;p vot'e'd thereto to engage Withthe'opposite edge of-the'guid'e rail-15a. The washer 22 and: nut 23 cooperate "in maintaining the swinging plate 20in position and permita free rocking. or" thiss' vinging plate about the .111 o raeo as the piston "rod B M 1s:

cates, the rack 15' is translatedu'p and down therevvith, but reason of the offset rum tlonship' oiithe; pivot 14 With respect to'the engagementof the rank teeth with thepinion 16; the rack is caused to make a slight rela- 4:

tiv'e' rotative' movement counterlockwise with respect to the axlsfof the s'leeveY19, being at times held in engagement With the drivpinion 16"by' the operation of the rollers 7 v '21 andthe' noselZupon the guide' raillfia. This bre'akageof the driving connection is l During the dovvnvfv'ard imovemen t' of; thejpisn ton rod R, theirack lamakes a correspondng clockwise movement; soi'that the total ei feet, upon the pinion 116:;is nil. However,

since the': angle eithermk 15 ithrespe'ct'to E the d rectionof movement of the'piston ro d R' maybe-varied, ameansis. presentedof compensating' fon different lengths of 7 stroke of the pist'o'nfP for the delivery 'of-a calibrated quantity, since when the rack 151 moves sole ly' inthe direction of its length, as when the traveling nut l3 is -adjacenti;thepiston red,

B -then the number of teeth which operateato 'ijseaeoe I when the'traveling nut at the end I the screw 11 away from the piston rod R, the

same movement of the piston rod R will cause a greater number of teeth on the rack to move past and operate the teeth of the pinion 16 :and obviously the position of the travelingnut 13 along the screw 11 will determine the axis rotation thusgivento the 'drivingpinion l6.

Obviously, the opinion 16 is rotatedfirst in one direction and then in another by equal amounts. It is therefore necessary to provide a'uni-directional drive between the actuating pinion 16 and the trains to be driven,

'in'ord'er to add up ortotalize the respective movements of the pistonPand' of the pinion I in th'eplate 18a' which supports the bracket" 16 driven therefrom. p

I As'shown in Figs. 2 and 11, the sh'aft'16a 3 of the pinion 1 6 carries a: gear which 2e meshes with two gears 31 and 32 fastened respectively to shafts 31a and 32a journaled 18 above referred to, and which itself is mounted in spaced relationship to the-back plate M of the indicating and counting device by spacing-and securing bolts 33. Each of these shafts 31a, 320, carries a ball or roller clutch31b, 32?) whereby tooperate a further gear34 or 35 carried by the respective other member of the clutch. 31b, 32?). 'These clutches are designed to operate in opposite directions, i. e., when the gear 30is turned in a clockwise direction, the gear32 meshing :therewithdrives its clutch 32b and therewith I "the gear35, while the gear31 turns freely withoutdriving through its own clutch member 3116. On the contrary, when the gear 30 isturned a counterclockwise direction, the gear 32 turns freely without driving through :its clutch member 32b, while the gear 31 now drives gear 34 through. the clutch member 31?). The two gears 34, 35 mesh together a 2) so that a movement of one of these Qul.

. corresponding gear 35, 34;and vice versa.

gears is attended by a movement of the other gear lnthe reverse direction. Such movement is permitted by the respective ball clutches 31b, 32?), so that alternatelyone of the gears 31, 31b isturning with its corresponding gear 34, 35 while the other gear '32, 31 isturningin the opposite direction to its The shafts 31a, 32a pass through therear plate M and at the opposite side of this plate *ca'rry'the respective drivingpinions 31d, 32d

(Figs. 5 and 11), whichintermesh. Pinion '3ld meshes with the intermediate gear 36 The pinion 32a mesheswith the gearllfl v r which'hasthe small diameter pinion e2fas-r 65.

"having the gear 37 fixed thereto, both gears turning together about a pivot pin 38 secured to the backplate The gear 37 in turn meshes with an idler 39 fastened to the small pitch driving ,wheel401of large diameter (Figs 6, 6a).

tened thereto, which in turn meshes withithe two gears 43 and 50. The gear 43 is an idler having a; small gear 44 fastened thereto to drive a further idler 45 which in turn oper ates acounting device represented conventionally 'at- T, but it will be understood to provide a plurality of disks having numerals thereon for exhibition through the viewing windows 46', whereby an inspector can determinethe total quantity of liquid which the front plate, and of the indicating and counting device This gear 50 is connected by a sleeve 53 with a small-pitch gear 54.

Inthe front plate'N is fixedly mounted a bushing in which may freely rotate a sleeve .61 having a plate 62 to support the slow hand 3' (Figs. 4 and 11) on the outer side of the dial L (F i 11), and rigidly connected to the large diameter slow wheel 63 having a large number of teeth on its periphery and likewise having fixed thereto a slow resetting gear 64. A spindle 65, rotatable within the sleeve 61, is fixedly connected to a similar large diameter wheel 66 having a large' number of teeth on its periphery, and being in turn rigidly connected to the resetting fast gear 67: in front of the dial L, the spindle carries the fast hand F. p r I I It is preferred to form the large diameter gears 63 and 66 of substantially the same diameter, and to provide each of them with a respective arcuate slot 63a, 66a which respectively receive the enlarged ends 68 and Q 69 of the motion-limiting stops 7 0, 71 which are carried by pillars 72 fastened to the front plate N of the indicating and counting device. 'As indicated by the dotted circles 73 in Fig.

6, each ofthe arms 70, 71 has an aperture larger than the screw of the columns 72,

whereby the angle of presentation of the respective stop members 70, 71, as well as the distance from the respective column 72 to the extreme end 68, 69, may be adjusted.

The spindle 65 likewise has a hub 7 4 which 7 supports a cam 75: as wellas a stud pin 76 which is presented in the bracket 77 (Fig.

I 2) of the back plate M. The bushing 60 and thebracket 77 thereforefor'm journals for the hand carrying parts at each end thereof,

so that these parts aremaintained for their rotat-ive movement. A gong 7 Sis fastened in the cavity'79 of the gear plate M by'a rivet 80. A heavy clapper head 81 is carried by a resilient arm 82 supported on a-block 83 mounted on a pivot pin '84 of the back plate M (Fig. 2) The. resilient arm 82 has: an offset'dog 85which rides along the periphery ofthe cam 75. A coil spring 86 is connected to the arm 82 and to a pinion 88'fixed on the .1;

"r ite a e M and; assis i firmineth arm P 82 nd: t l ppetheed fild w iietd t i rtl 7 thQg ngBQ; It w l, 10W -e F g. lr at'h actio ,1 1 g W919i) 1 clapper he'adgSl -;Wi 1'1 ;n0 rmelly draw. itdown} e, fitted; i

Ward-wh nthe dog 8.5 m re eased y i e c m w '15..- Irwin-fer hepbeapp ent ha theam r turns by. one Q rotationg for eechrotetien f' the ffasti 'hanc1 F," whieh pep;resents; in turn h Y BYJ f sine un t uan t 12 li l fd andfhence the gengwill sonndeeenratelya t the. moment thzttthe-hend F passesthezem 1ine,;011 in;0thep word s, thegeng will sti ik eat e elizdele yni 0. 1 al o cpot new thehan fi, mt ii n s e a e i d itioncp rfresp'onding to -the isLieL'indiCatiOn of the hind: F, in making; a ;revQluti"0n. It will tendingpin 91; carrying. one .endj'of a coil spring} 92 whieh engeges the pin- 931 01; the

V pocket? arm52 Eig SsQend mm thns eonstantly "tends to pull shifting jpltite' a "cre t ve y n ieic ee i ise d g n with-pre- 'spect to theme-keg. m nt-'52 -The shifting plate" 9 0a supportsi the Pivot. 9T4: f'fa ,vi he el 95' having small-pitch teeth (in its edgeiajnd meshing @64 1 times w t the im' r W 5 pi otediebp ttheipin; Th meterrm ;52has a slot-orie l gef opening QGthenei'n whieh the feelzer arm 52, as determined by'thejnieve- .mnt th shift g pee 901a: Mme-9 f stened inpe the ee arm.- 2 'efe ie with the cylindrical sleeve \98 *of the wheel 95,"

' end thns li nitthes movement-6f the latter jt'oward-thelarge wheelfifif enqekerdrr n 52itse1'f i'sdrtiwniin' a eunr .7 .tepcleelgwme ,dlreet on by fa p011 spring 99' "ee eeineieim 1 1 he f e P e" N:

is limited in it's nioveinent by fan eidjii ing angle membeinlMiha'iringla slot'1Q5 therein 7 t0guic1e the i eclier arm 52in its moveinnte It is apparent; that-thejdintopefationpof the adjusting screw 101-i11 respect to the rocker this Wheel 95 into engagern'e'nt th Wheel 7 V Withhn excessive pressure i andte ppei entf ,the hammefingei' mutilation {of the sihall I teeth during the mo ementincid nml tofthe s'hing of these parts {fell'ewing mesa;-

arm 52, an d ofjthe'stop platefi'fwith respect tov the vWheel 95; to prevent the fei'eing 'of fem,

- h rese n .e echan ms p s ely-feetuatedpnsh button .110 Whichis f0 block 113 "and the fade plate N; and an 1119- I st-ending. erm1'18 whieh wipes al eng'thehi vjheentedgefof the rocking paW1119 having the heek 12Q and the operating C am portion .121; 21nd WI "eh rtefelockwise. difectioni iibbut'Z its pivot, [pin is eonst'antly ,u'rgedin l8) connze i'n b16615; 11 3 b the. spring 123. The thirdarmlQOf the T-sh'apedmember 116 is. connected to a spring 125 engaginga pin 126i0h theiface plateN and constantly tends t6 1151111 theT-shaped member: 116, together I with the bushing 112, so as tQ return 'itiagainst the manual egiere ti n 6f] the *blittdn 110. i 1

3A stein '127,is:reletively slideble "in the bushing 112e'nd'has a 111128 engaging ine slet v129 Of this hiishing'te; limit the relative inevenientofthe stem 127t0the length ofthe islet 129, this slot'hein'g' closed. it the end' o f the bnshing l12 by'the T-"shiajped plate 116 e fixed to the bushing 1-12. The stem 127 czt ries v handstafi @l'JhlfigT lgo which slides in apert 13 1 ofth'e 1010011113 :(Fig. 7 While a hem vely heavy c'eilf spring 132 is le'czited af b nnd the stent127 and between theshonl- :dei'p'f jp'lunger 130* and the T-haped plate 116; :A pin 133' holds ithe s'tem 1'27 and tinned;upw ardend downWafd'KFig. 8) so' thait itinay be'engalged hy the hook 1200f the ffdfetent ef'l ltching deviee 119 on the one hand;

"and i's uided by a 81013134111' the faeeplate 5N nthe otherihand', whereby t0 preyenta'rotation of the plunger 130 about the axisof the steni 127 'Piv ted by a pin'135t0 the end of thep'hmger'1'30 is" a c0nne'cting*1ink136 which fhas aisiet 1371 at its other endto receive the 'pih'1'38bn the ro'ck-ei' mm: 52, so that npdn movement of the plunger 130 toward the right in Fig, '17; the link 136167111 move the rocker frein' the wheel 63 (Fig. 7) and'the wheel iO Tespeeti e'dri ving trains, and at-the same timerelnevlng anyrestra nt'against the move- Likewise fastened ihthe e plat; .N isje jji'vet 1401113011; Wh-ieh i's p ivotallymennted the lei 1141- hwiingai'detent finger 142 fix'ed the e toi "'The l'evei "14:1 has an enlarged" end ute-withtweapeemies;meynitth ethmugh iio iece'ive the respective co n-springs 145, 146

eenn ohejeiiettd the respetivje reset? V Itih glseginents 147,}148,1itnieaeh having a f larg e reeetiqnv shoulder 1459 r a getinstfwhich "thelever;extensi0n 1412z:1nay epei'ate;

e 'ei ttie weete 1& -me tthefwheel fiti (Fig; 6(1),:1111113 freeing the whee1s 63a-ncL66 ifi'oin 'aetuation through their 1 ed on theipivot 150 fastened to the face plate N, and are each providedwithfteeth to engage with the respective resetting gears 67, 64 ,(Figs. 6a, 7 and 12).

r In Figs. 4 and 11, it is'clearlyshown that the back plate M and the face plate N are held ri idly in spaced relationship one to another by pillars 160 having reduced ends passing through apertures in the respective platesand riveted; over to prevent accidental separation of these parts after assembly. The dial L'is similarly held in spaced relationship to the faceplate N by spacing collars 161 and screws. This dial itself is pro-' tectedby-a gear G carried by the enclosing jacket J which protects the entire mechanism. It will be understood that normally thef'back plate M is formed with anex- 7 tended, flange 162 having apertures therethrough by whioh'the device may befastened onto the customary east-iron standard of I the dispensing pump.v It is likewise preferred to provide a hopper-shaped guard163 around the push-button 110, so that an acci dental contact withthe push-button 110 will not result in a resetting operation of the device.

The *oper ation ofithe device as follows: Asthe pump rod It moves up and down,

with a stroke adjusted bya calibrating screw '8, it delivers a unit quantity, say one gallon, for each stroke. A right-angled trivangleis in eflect .formedby a line representis equal substantially to a maximum predetermined movement for the piston P. In other words, when the piston P is making this maximum movement, the rack moves up and downjin a straight line" in parallelism with the movement of the rod R, but as the movement of thep'iston I is shortened by the set screw S, the pivot point 14 is more and more offset from thisstraight line position. In thls way, the calibrated movement of the piston l for one 'gallon will'cause a movement of the rack 15 in the direction of its own length,

l which is equal to the predetermined maximum, and thus cause at all times a unit rotary displacement of the pinion 16.

This'rotation of the pinion 16 is transmitted through the double clutches ascontinual movements ofthetwoipinions 31d, 32d alf'waysjfin the same direction, each for each.

The pinion 31d operates through a gear train 36, 37, 39 to move the finetoothed large wheel 40 and thereby the'fine toothed wheel 66 and thus to move the fast hand F: the gear train ratios are so selected for the desired units of delivery that the fast hand F makes one full and exact revolution for each unit delivery from the pump cylinder C, while at the same time the cam 75 makes a full revolution, and the clapper 81 sounds the gong 78 at the instant thatthe fast hand F returns to Zero.

At the same time, the pinion 32d drives a gear train and operates the totalizing mechanism T to indicate the total number of units dispensed through the pump: and further this pinion 32d operates a further gear which in turn drives through finetoothed gears 54 and 95 ,the other fine toothed wheel 63, and thus moves the slow hand 8.. It is preferred to form the gear ratios-of this drive train such that the slow hand makes one revolution for a dispensed quantity well above the usual maximum of delivery to a single customer, for example twenty gallons: since in this way the customer receives a direct indication of thetotal number of gallons which have been delivered to him. i It will be understood that during the time that the slow hand has moved from a zero position to a position of eighteen gallons, for instance, the fast hand has made eighteen completelrevolutions and the gong 78 has been sounded eighteen times. V

During this movement of the hands, the gears 64 and 67 have been rotated therewith, and have operated upon the resetting segments 148, 147 to move two sectors in a clockwise direction in Figs.6 and 6a to the position shown in Fig. 6. During this movement,the resetting springs 145 are slightly tensed so that the detent 142will ultimately engage these segments and hold theinf'in the position "shown in Fig. 6. The engagingsurfaces 'ofthe detent 142 and of the'segments 147,148 may be constructed. to occasion a withdrawal of the segments from any engagement with their'respective gears 64, 67.

. After completing'adesired delivery to a customer, and it is desired to reset the hands and associated mechanisms to zero so that a dispensing operation may be begun fora new customer, the thumb button 110 is depressed.

As'a result of this single operation, the gear trains driving the fast and slow hands are disconnected and these hands arereturne d immediately and positively to a zero position, one independently of the other, and the parts are so disposed that this return is so produced that no partial operation of the button 110. will causela partial return of either or both of the hands to a partially restored position. The way in which this is effected is as follows: 4 7

Normally, the returning sector 147 for the fast hand is held free of the gear 67 of this hand by the detent 142: and both the turning sectors 147, 148 are without spring tension from'theirsprings 145,146. The fine toothed wheel 40 is in mesh with the fine toothed wheel 66, and the fine toothed gear 95 is in mesh withthe fine toothed wheel 63.

' f theiind icatingparts.

insane time not dpi sseej he tna 1'18 compresses the spring 132, but for the moment the plunger=130 is held immovable by'fthefengagement of the pin133'bey-ondthe hoolr 120. At'thefsame' time, the' plate 1'18 causes a rocking'ofthe lever system 141, "142';

141 a and tliusrelea'ses the sector platesjl'f,

I48 and brings tension 7 upon the {returning springs 145', I46. All oiflthi's has Occurred .without any movement otthefplunger l',"

132', fl tvvill be noted that Ipreferably the t'woilargetoothedf Wheels 6:3. and 6'6 have'fbeen heldagain'st re'turnbythe action of their respectivedriving trains and the "ball" clutch a members-f3ib,,1,325.,'The movement of the "plunger l30,-,however, causes a relative endwise movement of the link;13, 6, at firsttreely with'respect to the 138,, and" then asud' and abrupt clockwise 'movement of the i'ockiarm bz about its pivot 51, thus disen gagingthefinetoothedllargeWheel 40 from its meshing wheel 66.;and of the fine. toothed gearf95 from itsrmeshing wheel' fig 'Theosec: tors 147' and-1&8 rare novvfree to drive the respective gears 61 andMandlthus-to restore vtheLlazrge;toothed wheel 63,."66, toge her with the handsI-f and S and; the cam tothe 'zeroupositi-on: the respective gears; ape ,nroaclr th-is'=pos1t1on, the stop sprmgyarms .70, bring their detent ends 69 intothe S. to a stand-still exactly at.:the zero position.

It noted that thisfhas occurred al- A-m/ostinstantaneously: and so quickly that the operator doesnot have time ;to relieve his finger fi'oin the; button 110 betore the reset- 3 tinglh as-occurredg. 1

Attereresetting, when the button l l O is re- ;leased;c-the plate ll8 travels backagain by the action of the spring j-125:, and theiresid-nal tension; the springs 145., 146, causes the lever -systen1.- 1&1, 142 141a to return with thez'plateill-8, The 128 is likewise .en-

' gauged bythe plate 118 and. the plunger 130 and/itslink l36 are pulled; back permitting theretu rnof the rock arm 52 byithe action of itsi'spring; 9 91, until the rockarin 52 comes 7 -agai-nstitheAstop 101 and the-:dri-ving-gears are again in mesh. I

V Itwvi'll: be notedv that toothed. large wheels 40, 66' enterpositively into mesh at not' greater 1/260th of a revolution, as

snnaing-that each gear has 260 teeth: this representing an error of less than l-v/th-of onenpercenrt for the-indication given by the Eliand.v 'Likevvisefa similar: distance .is the maximum of error: for 'thetslow hand, J

by LettersPatent-is: V V a v'1. In a cleviceof the class describedia mom I linear movement.

since the 95 is spring-pressedby spring SQintoengagement vvith'thelarge wheel 68; V i If the tops btthe t'eeth in the largewheel V 63 and the fine toothedgear 95 should chance to come opposite each other inf returning 'to-' Vw'ardnie'shing, this'iis forthe momentiabe sorbe'd byl'the spring f92'zbutupo1'1 a slight movement of the driving; gear 5 iand-hence Oithigeal t Pa t movequick1 'ma meshing relatio hip 1 1 The t 0 s l tsjni fdisaneefbe- 't'vveen the axi's'oii' the 'largewheel's 50andi66 :so that they mesh 'e'xactly: hile the plate providesfor a similar maintenance ofthe meshing relationship of'the gear 95'With1-the Wheel'63, V o V.

It W111; be noted that cl'uring the entire resettingoperation, thevarious geartrains up to and including the l'arge'vvheel 40 and the toothedgear 95 are continuously conthough such quantities may not be' indi- V oated bythe hands Sand'l andv the gong 778V:

injother vv0rds,an operator cannot defraud theovvner of the pnmp by dispensing liquid with the button 110 continuouslypushed in.

" hat I claim as new anddesire; to secure ber adapted to be f attached to any one of .a

nected to the driving system from the pint ion 16.:1andthat the totalizing device'Tfconv tlnues to add. up quantities dispensed even:

numberrof pnmns having difi'ering-lengths of a stroke for the delivery of a calibrated-j quantity-sothat the member is moved linearly in proportion; to the movement'ofthe pump, a pinion, a rack meshing with said pinion,

meansl'connecting said member and said rack sothat the rack is moved with said member te-rotate said pin'ion and; means to -adjust [saidrack angula-rlywith ii espect to said 2;- In a device of piston'stroke forthe delivery of a. calibrated quantity so that the track is moved linearly in proportion to the movement of the pump piston, apinion meshing with said 1 rack, means for con-necting said rack to aselecte'd one 'of'saidwpumps -so that the rackis moved to rotatesaid pinion, and means to adjust said! rack angularly with respect to said linearmoveinent. I o 1 8; device of'the class described for employment with any one of :a number of I theclass described;arac k acla ptedito be'attachecltoany one of anum- .1 her oi pumps having differing lengths off pumps having diifering lengths of, piston stroke "for the delivery of a calibrated "quantity and eachhaving a member reciprocated in proportion to the piston movemenh the combination of a bracket connected to said;

memberand extending transversely of the direction of movement of said member, a :pivot {mounted on: said-bracket, a rack connected tosaiol pivot, a;rpini o-n,-, and :asvvinging rock arm pivoted coaxially with said pinion, said I armhaving guide members for the movement of said rack whereby to maintain said rack inmesh with said pinion. 4:, A device as in claim 3 including means for'movingsaid pivot to and securing it at 3 difi'erent points of saidbracket.

. 5; A device of the class described for employment with any one of a number of pumps I i having difi'ering lengths of piston stroke for the delivery of a calibrated quantity, including a bracket connected to and reciprocated by the pump piston so that its linear movec ment is proportional to the piston movement, a rack. a pivot connection on said rack, a pinion meshing with said rack; means for securing said pivot connection to said member at varying distances from a line passing through the pinion axis and parallel to the line of said linear movement, and a swinging rock arm pivoted coaxially with said pinion, said arm havingguide members for the V movement of said rack whereby to maintain said rack in mesh with said pinion while moving withfsaid member and turning about the axis of said pivot connection regardless s of the position of said pivot connection on i said member. I

6. In a device offtheclass described for employment with any one of a number of pumps having differing lengths of piston stroke for the delivery of a calibrated quantity and eachhaving a member reciprocated in *proportionto the piston movement, the 5 combination of a bracket rigidly secured to said member and extending transversely of the direction of movement of said member, a pivot,cmeans for supporting said pivot'on said bracket at any one of a number of points 4001 said bracket at differing distances from said member, a rack connected to said pivot,

a pinion, and a swinging rock arm pivoted coaxially with said pinion, said arm having guide members for the movement of said rack whereby to maintain said rack in mesh with said pinion.

In testimony whereof, I afiix my signature.

' JAMES M. DAYTON.

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