US1693092A - Recording and sales-check mechanism for fluid-dispensing pumps - Google Patents

Description

Nov. 27, 1928.

A R. MASON ET AL. RECORDING AND SALES CHECK MECHANSM FOR FLUID DISPENSING PUMPS Filed Aug. 17, 1927 Flig Patented Nev. 27, 192s.

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ARTHUR n. MASON AANDfO'r'ro o. r'AimNG, 'or MEDronDyOnndoN, Ass'iGNORs "fro AOCURATEGASOLINE RECORDING COMPANY, A CORPORATION 'or OR-nsfON.l

RECORDING AND fsAL-Es-GHEK ivreorrnNisM ron rLurD-DIsrENsrNG Trui/frs."`

Application .mea August 17, 1927. :semi No. erases.

Our invention has for its lobject means whereby the customer and salesmen are each provided with a check ori printed'slip showpenfsed `is provided with a vslip on which is 'distinctly registered the actual fluid 'dispensed 'exclusively to `him .in any 'given 'trans action.

Vlvloreover :the vsalesman loperating the pump lis-provided 'with aV similar' slip by 'which' the fluid 'dispensed by him from any given pump i'sseparat'ely recorded, while the owner of the pump is provided with a vrecord of fthe total fluid x'disfp'e'nsed and a record ofy ea'ch transaction.l

Afurther -obj ectofour invention is lmechanisin adapted to beV operated @in comhin ation with a fluid dispensing pump such as that generally employed for dispensing` gasoline.

or fuel oil fait service stationsand "oil inimeasured quantities Vfrom containers.

Our mechanism iis simple, eicient and readily accessible andld'oes not 'further complicate any ofthe operations heretofore performed on conventional pumps.

By referring to the accompanyingvdrawing our invention will be made clear.

In Ythedrawing Fig. 'lis a side view partly iin section showinga conventional"gasoline dispensing pump Ito whicl'i'ou'r :invention has 'been applied.

1F ig. 2 is a plan view of `a portion of the operating mechanism with the dispensing pump operating handle and piston rack fand withY certain olf the parts left out 'to better illustrate the operation. y

Fig. 3 is aside view 'of yfragmentary portionsof Fig. 2.

Fig. Zfis an enlarged detail illustrating the operation of `the'. pa-wl 'and ratchet mechanism of Figs- `1.a'nd'2.

Fig. "5 is a `fragmentary section through a front :portion ofthe casingof the mechanism showing fthe manner in which the record slips are discharged.

Throughout the figures *similar numerals 'refer to ridentical parts;

Y The cylinder nf 'a conventiimal fluid dise placement pump is shown at 1 wherein is operated fthe piston 2, to Withdraw gasoline-for other fluid from `the `tank 3` and ,distribute the same `from the nozzle-4L, thegasoline being transferred from the 'tank 3 through the pipes to the'container 6 upon ythe operation offtherack 7 by the handle'S fall 1in 'the 'con- Vventional manner.

Referring particularly tof Fig. 2-the track 7 is operated Yby Vthe hand'le 8 which rotates the pinion 9-which in turn rotates the second pinion `10 actuating the recording mechanism gear lfl. Y

This latter is the latter being supported `in the `bones13` 14;.

Mounted on the gear `1'1 `are a plurality o`f posts 15, 16 supportinga Ylike-plurality of pawls 17, 18 respectively. f 1

These pawls-are fadaptedto engage fthe skew ratchet wheel 19 which is integrally connected with ,the strip feeding idrum`l20, so

vthat with amoti'on of the gear inthe direction of arrow/21, lthe p'awls Vengage the ratc'het i vand' causef'the drum 20 to rotate, advancing the paper strips "22, .23, y24C in synchronism with the movement ofthepist-on 2 andtherefore .in direct proportion `fto the vfluid Adispensed by the pump.

YThe ratchet 19 and feeding wheel 20 :are freely mounted `upon the 'shaftk12 and are frictionally engaged vtherev'v-ith through the friction id-isc 25 lsplined tothe shaft 12 at 26 and held against the wheel .2Q by the helical spring 2.7f, the ratchet bearing against the f collar 28 carried lon `the shaft 112 on the 4other side.

`Any conventional characters yor printing or embosslng may beprov1ded on theypaper strip orstrips or they may be .impressed as.

issued with suitable characters or embossing -fas follows.V

he 'clutch :plate :25 actuated .byv the spring rprovides Va [driving friction against lthe Vdrum 20 to enable the drum to be movedupon overcoming the said Afriction into lanydesired aposition Withprespect to the shaft and gear train and so as to secure la .perfectjregistration of theipapfer strips when inserted, and moreover, to prevent vtearing of :the paper strips, should they, for any reason, stick during the operation of the machine.

At v37 is a 'printing or embossing wheel carried vfreely-onitheshaift 12, y

Vfgearedto the drum`20 having raised graduations Vor :pifinehed strips' 38, su th at 'th several strips of paper being delivered between. the drum 20 and the wheel 37 may be punctured or embossed to indicate the proportional movement of the pump piston and therefore the fluid delivered from the pump.

The paper strips are supplied from any conventional source reels, positioned elsewhere in the box, well-known but not shown, and the said strips 22, 23, 24. are passed between the drum 2O and wheel 37.

After passing between the wheels 2O and 37 the paper record advances through the carrier tube 39 and after the pumping operation is completed, is ready for delivery from the safety casing a() hinged at 11.A

This safety casing and the cutting knife combined therewith for severing the paper strips is made the subject of a separate and co-pending application by us, Serial No. 213,689 filed Aug. 17, 1927, to which reference is herein made.

' The paper strip 22. is a complete record of all of the pump transactions to date and the two additional slips 23 and 24 which are duplicates thereof are, one for the customer and one'for the particular salesman who has handled the transaction. f

A spring 29 likewise forces .the gear 11 causing its hub 3() to ride against the fixed pin 31.

AThis pin has a wedge shaped end and normally during operation rides against the face 31 of the hub'30 and when the piston 2 is in the lowest possible or Zero position, the end of the pin 31 engages within the slot 33 while as soon as the handle 8 isv rotated, the first movement of the gear' 11 causes the Vface 32 to advance, forcing the slot 33 against the wedge face of the pin 31 causing the gear to move from the full line to the dotted line position of Fig. a and thereafter ride with the face 32 against the end 33 of the pin 31, with the pin free of the slot.

This movement is for the purpose of causing an immediate engagement between the pawl end 35 with the tooth- 36, the lateral motion'from the full line to the dotted line position of the pawl causing the pawl end 35 to contact immediately against the ratchet tooth.

It is to be understood that I employ a plurality of pawls as 17, 18 and that these have their engaging ends spaced on a pitch different from the pitch of the skew teeth of the ratchet, so that one or the other of said pawls is nearest to actual engagement with the ratchet tooth; and that then upon the first movement above described, when the gear 11 and pawls 17, 18 are laterally displaced from the full line to the dotted position the pawl which was originally nearest to the tooth is caused immediately to engage the tooth.

In this way, any lost motion between the pawls and ratchet teeth will 'be taken up and a perfect accuracy of the paper movement synchronous with the movement of the pump piston 2 is obtained. Y

lt will thus be seen that the motion is transmitted from handle 8 and pump actuating rack 7 through lthe pinion 10, gear 11, and

in the limits of the friction the drum 20 moves in exact proportion vto the pump piston c and therefore the paper strip or strips advance in exact synchronism with the pump piston 2. f

If the paper sticks or if a new roll or rolls be inserted they maybe adjusted so that-their graduations v38 are corresponding exact-ly with the position of the pump piston by ro.

tating the drum 20 against the friction 25.

Vle claim:

1. Sales check mechanism for fluid dispensing appara-tus comprising a member constrained to rotate in synchr'onism with said dispensing apparatus, a shaft on Awhich said member is adapted to slide, va skew toothed ratchet on said shaft, means fixed to said ratchet for advancing record strips, and a plurality of pawls carried on said member and adapted to selectively engage the -said ratchet teeth when the saidl member is rotated.

2. Sales check mechanism for fluid dispensing apparatus comprising a member constrained to rotate .in synchronism with Vsaid dispensing apparatus, a shaft on which said member is adapted to slide, a. skew'toothed ratchet on said shaft, mechanism fixed to said ratchet for advancing record strips, and a plurality of pawls carried on said member and adapted to selectively engage the said ratchet teeth when the said member ris rotated, means adapted to force said member laterally on the first increment of rotative movementthereby causing the pawls to move laterally and one offsaid pawls to engage the skew teeth on a minimum of rotative movement and a spring holdingsaid member against said means.

3. Mechanism as set forth in claim 2 wherein the said mechanism includes a drum and in combination therewith with a plurality of paper strips adapted to be advanced by said drum on the rotation of said member.

4. Sales check mechanism for a fluid reciprocating pump comprising` a member constrained to rotaterin synchronism with said pump, a shaft on which said member is adapted to slide,askew toothed ratchet on said shaft, mechanism fixed to said ratchet foradvancing record strips, and a plurality of pawls carried on said member and adapted to se- IUS lectvely engage the said ratchet teeth when the sad member is rotated.

5. Sales cheek mechanism for a fluid recproeatng pump comprising a member eenstranecl to rotate in synehronism with said pump, a shaft on which said member is adaptecl to slide, a skew toothed ratchet on said shaft, mechanism xed to said ratchet for advancing record stripe, and a plurality of pawls carried on sacl member and adapted to selectively engage the Said ratchet teeth When the Said member s rotated, means'l increment of rotative movement thereby causing the pawls to move laterally and one of said pavvls teengage the skew teeth on a mnimam of rotative movement and a spring holding said member against said means.

ARTHUR R. MASON. OTTO O. FAILING.

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