US1701445A - Indicating and counting mechanism with compensator - Google Patents

Description

Feb. 5, 1929.

J. M. DAYTON INDICATING AND COUNTING MECHANISM WITH COMPENSATOR Filed Aug. 10, 1927 2 Sheets-Sheet W Jr Feb. 5, 1929. 1,701,445

J. M. DAYTON INDICATING AND COUNTING MECHANISM WITH COMPENSATOR Filed Aug. 10, 1927 2 Sheets-Sheet 2 Patented Feb. 5, 192 9.

UNITED STATES,

PATENT OFFICE.

JAMES H. DAYTON, OF TORRINGTON, CONNECTICUT.

Application filed August 10, 1927. Serial No. 211,945.

This invention relates to an indicating apparatus, which is more particularly employed with a liquid dispensing system.

In my pending'applications Serial No.

5 167,799, filed Feb. 12, 1927 and Serial No. 191,368 filed May 14, 1927, I have disclosed a compensating mechanismfor inclusion in the driving train between the pump of the dispensing system and the indicating apparatus proper. In these applications it has been set forth that with pumps as usually employed in gasoline dispensing stations, owing to slight differences in construction, certain errors arise if a counting and indieating mechanism be directly connected to the pump to be actuated therewith. Particular ly, if a reciprocating pump be employed, as is at present customary, the cylinders are made of drawn tubing which may vary by several percent in internal diameter. It is therefore apparent that to attain a standard or normal volume of delivery, it is necessary to have a longer stroke with the-pump cylinder of smaller diameter than with the pump cylinder of greater diameter. This difference in length of stroke causes such difliculties of accurate registration that it is necessary to provide some type of compensating device between the pump and its actuating system and the counting and indicating mechanism. Such devices hay e been shown in my aforesaid co-pendin applications, and in my Patent No. 1,571,57

In present day gasoline dispensing pumps ard of some six or eight feet in height alongside the driveway, on which standard is' mounted the handle for actuating the pump, the indicating and counting mechanism, the connections for the delivery hose, usually a transparent visible container for the gasoline to be delivered, etc. It is desirable to mount indicating devices on both sides of this standard, so that the indication may be read by a purchaser seated-in his machine, whether he is on one side or the other of the standard itself. Hence one of the features of the presentinvention is to provide means whereby two indicating mechanisms may be attached to such a standard, without interference with the apparatus contained within the standard and required for the operation it is customary to provide anupright stand-' of the two dials may be brought into conso- I nance with each other, so that both dials will read zero or five or ten or any other reading at the same time, being moved together by their mutual connection; Further, itis preferred insuch arrangement to drive one of the indicating devices through a compen sat-ing system located within that device: and to establish a connection between this main device and the other device known as a dummy, and to mount thesignal gong referred to in application Ser. No, 191,368 on this dummy device where there is greater space available for its location.

This-invention therefore likewise comprises means on this main indicating device for driving the dummy device.

Furthermore, it has been found desirable in practice to provide a manually controlled automatic reset, whereby the indicator is returned to the zero position instantaneously upon the actuation of the resetting system. Further, since it is sometimes desired to dispense quantities of liquid which are greater than the maximum indication of the apparatus, it is essential that not only should the indicator itself be returned to zero, but that all parts of the driving and return system, except the actuating train itself, should be returned to zero, so that when a spring or similar return device is employed, there will not be a'storing up of power within this device each time a delivery of more than the maximum indication is made. This invention' therefore presents a structure according to which the movement of a resetting device causes the release of the indicator from'the driving train, andproduces a return'of the indicator to the established -zero position independently of the driving train: and in particular the provision of such a system whereby the movement of the indicator past 360 produces a movement of a return system such ployed.

that no power remains stored in the system after the reset mechanism has functioned.

With these and other objects in view as will appear in the course of the following specification, the construction of the present device is illustrated in connection withthe compensating train disclosed in my copending applicatlonsabove referred to. Since these compensating mechanisms are not claimed, except as a means of drivin the indicator of the present application, an preventing a return thereof, no more detalled description or illustration of such asystem will be given, for clearness of disclosure, and

it will be understood that any other type of dummy indicating device'of Fig. 1, showing the correcting system, the gong arrangement,

etc.

Fig. 5 is a horizontal section throu h the main drive of Fig. 1, showing the ban staff and the reset assembly, together with the connection to the driving shaft leading to the dummy device.

Fig. 6 is a section through the device of Fig. 5, at a right angle to the axis of the hand staff, showing the driving connection for the dummy device and the-mechanism for returnin the handto zero.

ig. 7 is a detail view of the friction mechanism for regulating the movement and position of the reset knob.

Fig. 8 is a detailed view in section through the hand staff spindle of Fig. 5 at right angles to the axis, and showing on a larger scale the relationship of the clutch members.

In these drawingsthe dis ensing system has been illustrated in Fig. 1d) vention, as having the standard 10, 10", comprising two castings which are arranged upright and secured together when the system is placed in position at the dispensing sta tion. These castings have the apertures 11, 11' respectively which are substantially diametrally opposite each other. It will be understood that these standards are of various forms, some being square in horizontal section as shown in Fig. 1, others oval or round, etc., but that the principle of adaptation of the present invention remains the same in any instance; and that indeed so far as many features of the device are concerned, they are entirel independent of the standard emway of conithin the hollow standard 10, 10

moves the piston rod 12 of the liquid dispensing pump, having a rack 13 connectedthereto to drive a pinion 14 which is mounted on a shaft 15 journaled on a bracket 16 of the frame 10. It will be understood that this shaft 15 is the direct actuating means for the indicating system, and is the driving shaft which operatcs the driving train including the compensator, as described in my copending applications: this compensating mechanism and driving train being located within the main indicating device represented in Fig. 1 as the casing 17, and comprising a train whereby the arbitrary longitudinal movements of the piston rod 12 are compensated to effect a standard or normal registration within the indicator 17. This indicator also is provided with a driving train, Q

as will be more closely described hereinafter, by means of which a shaft 18 is rotated whereby to transmit the movement from the main device 17 to a dummy device 19, as will be described hereinafter.

Themain device 17 is securely bolted to a door 20 hinged at 21" over the respective aperture 11 of the standard 10, 10". The

dummydevice 19 is similarly bolted to a door a universal joint 23 and to the dummy device 19 through a universal joint 24, and is itself extensible, as will be more closely described hereinafter. It is therefore apparent that the shaft 18 may be assembled to the main device 17 while'the door 20 is open. The dummy device 19 is then mounted on the door 20, the door bein open for easy access to the securing bolts. t will be noted that in each instance the bolts may be of the stove-bolt type so that an'unauthorized person cannot remove them to gain access to the interior of the standard to remove the devices or change their position or block the action of any of the parts. Since it is customary to lock the standard in order to prevent an unauthorized person from gaining access to the adjusting means for the stroke of the piston 12, this furnishes a further assurance against any 20 may now be closed and locked to the standard, the shaft 18 telescoping for the purpose, and the devices are now entirely protected against u iauthorized handling. It will be noted that by the specific arrangement of the shaft 18 in a horizontal plane with respect to the axis passing through the devices 17, 19, that the shaft is removed or offset from the path of the piston rod 12. Furthermore, the employment of the universal joints 23,24 makes it unnecessary to havethe devices 17, 19 exactly alined with each other to be-coaxial and they may depart from such relationship by a relative dislocation of one device either laterally or vertically from the .axis of the other: or even by an angularity of the respective axes, without affecting the gccpracy of the indication of the dummy In Figs. 2 and 3 is shown one form of the extensible shaft 18 which is especially adapted for employment in the construction of Fig. 1. In these figures, the shaft members 18 and 18 are formed identical, and are arranged to slide with respect to each other at their central portions, each being provided with a respective clip 25, 25" which fits around the other member and holds the two together for their free sliding and telescoping relationship. At the end of the respective shaft member 18 18 which is to be connected to the device 17 or 19, is provided a universal joint member 23 or 24 having the pivots 26, 27 at right angles to each other for the purpose set forth above. As shown in Fig. 5, the shaft member 18 has the universal joint member 23 with the pivots 26, 27, the latter pivot securing the member 23 to the end of the shaft 29 which passes to the casing of the main device 17. I

The dummy device 19 of Fig. 1 is represented in section in a vertical plane at right angles to the axis of the indicator in Fig. 4. In this figure, the outer casing 110 is shown as closely surrounding a split sealing band 120 having at one end a lug 124', which in the position shown passes through a notch or aperture in the other end of the band. A screw 127 is passed through the base and through a threaded hole in the lug 124": and may be provided with a seal as described in my copending application Ser. No. 167,799, whereby the parts contained within the dummy device are sealed against access by an unauthorized person. An aperture is provided through the base 110 and the band 120 to be filled by a screw plug 110 The end of the extensible shaft 18 connected to the dummy device is fastened to one end of a shaft 200 which passes through the base plate 10 and serves as a pivot for a gear 201 which is loosely mounted thereon. This gear has an upstanding lug 202 on its face with a threaded aperture therethrough in a plane parallel to the face of the gear 201 to receive the screw 203 which has its head 204 received against the outstanding arm 205 fastened to the shaft 200. It is apparent that by turning the screw 203 by its head 204, the relative angular distance between the lug 202 and the arm 205, as subtended at the axis of the shaft 200, may be varied. Further, when the plug 110 is removed and the screw 127 withdrawn downward, as described in my copend'ing ap plication Ser. No. 107,799, a screw-driver may be inserted through the aperture, thus freed and engaged with the head 205 to rotate the screw 203: while the spring 200 engages between arm 205 and the lug 202, and thereby cooperates with the screw 203 in maintaining device shown in Fig. 5, and as already set forth in my aforesaid copending applications.

Since the construction and arrangement of this dial and indicator forms no part of the present invention, it is not described in greater detail. and reference is made to the copending applications for the full disclosures. willbo understood that for the purposes of the present dessription the hand H is represented as rigidly secured to the hand staff shaft 207 which in turn is pivoted in some fashion on the base plate 10 Rigidly fastened to this hand staif shaft 207 is a gear 208 in mesh with the gear 201, to be driven thereby. Likewise fastened to the hand staff 207 is a ratchet wheel 209 having a number of teeth equal to the number of divisions occurring on the dial used in conjunction with the hand H. It is assumed in this application, as in my copending appli ations. that the dial is divided into twenty units for its 360 degrees of circumference. and hence the ratchet wheel 209 is provided with twenty teeth. A rocker 210 is mounted on a pivot 211 of the base plate 10 and is provided with a tension coil spring 212 fastened at its other end to the base plate 10. This coil spring tends constantly to pull the dog 213, which is pivoted to the rocker 210 eccentric to its pivot 211. into contact with the periphery of the ratchet wheel 209. A second spring 214 normally holds the dog'213 in the position shown. in conjunction with the stop member 215 on the rocker 210. So long, therefore, as the hand H is rotated in a clockwise direction in Fig. 4, corresponding to its drive from the hand staff 207 by the gear train aforesaid, the successive ratchet teeth force outward upon the dog 213 and swing the rocker 210 about its pivot 211 and force the clapper 216 away from the surface of the gong 217 which is fastened to the base plate 10. It will be noted that the spring arm 218 is fastened to the rocker 210 at one end and is bent near its other end to pass through a slot 219 of the base plate 10" into the interior of the gong 211. WVhen one ratchet tooth has passed beneath the dog 213, this dog is drawn rapidly downward onto the next tooth by the spring 212, and the rocker 210 moves and a stroke of the gong 217 is produced by the clapper 216. On the other hand, during the resetting movement to be described hereinafter, when thegears 201 and 208, and hence the hand staff 207 and ratchet 209 are rotated backward to return the hand H to zero, the radial face of each successive tooth encounters the dog 213 and rocks it about its pivot against the spring 214, without producing any movement of the rocker 210. and hence without sounding the gong 217. This has in general been dessribed in my copending application Ser. No. 191,368 to which reference is made for further details which do not form a part of the present invention.

It will be noted that by this arrangement, the gong is located on the dummy device 19, where there is afforded greater space and freer access than is possible on the driven main device 17.

On the main device 17, which is shown in a horizontal sectional view in Fig. 5, the casing-110 surrounds a safety sealing band 120 which is received between the base plate 10 and the deck plate 14, as shown in my copending applications, and as above referred to with respect to thesealing band 120 of the dummydevice. A bearing sleeve 230 is mounted in the base plate to receive and guide the shaft 29. This shaft has secured thereto a gear 231 which is in mesh with an idler gear 232 j ournaled on the deck plate 14. This idler gear 232 in turn meshes with a gear 233, which is driven during registration from the shaft 15 of Fig. 1, through the compensating device described in my copending applications, and as set forth hereinafter. This gear 233 likewise has formed integrally therewith an upwardly extending portion 34 to support the hand I of the main device, which plays over the scale D thereof and indicates the quantity of liquid being delivered by its successive movement-in a clockwise direction about the axis of the gear 233. It will be understood that the hand staff 207 and the gear 233 are mounted substantially coaxially in the position of Fig. 1, so that looking. at the faceof the main device of Fig. 5, when the hand I moves in a clockwise direction, the gear 233 turns similarly, while the idler 232 turns counterclockwise and the gear 231 and extensible shaft 18 turn clockwise, together with the arm 205 and the gear 201, thus producing a counterclockwise rotation of the gear 208 and hence an apparent counterclockwise movement of the hand H, when viewed from the rear of the dummy device 19. This, however, is a clockwise direction when viewed from the face of this dial, and hence it is is clear that the two hands I and H both move in an apparent clockwise direction when their dials are viewed and, provided that the fastened'to a clutch core member 42 to drive the same, and is likewise secured to a sleeve 234 which is loosely mounted on the staff spindle 235, and has a radial flange 236 at its upper end, so that a second clutch core membar 237 may be mounted between the flange 236 and the first clutch core member 42 for loose rotation upon the sleeve 234. An,

outer-clutch member is formed with a bottom plate 238, which is secured to the outer clutch member 239 proper, and to the upper spool member 240 which has a peripheral groove 241 and has a forced fit on the sleeve 244 of gear 233. The outer clutch member 239 is provided with the balls 241 and springs 242 to engage between the clutch member 239 and the respective clutch core 42 or 237 as hereinafter described. The staff spindle 235 extends through the base plate 10 and is provided with a nut 46 to hold the same in fixed position. This staff spindle 235 has successively increasing diameters upwardly, wherebythe first shoulder is received against a disk 243 on the base plate 10, so that the separation between the first two shoulders of spindle 235 permits a free rotative movement to the assembly of the gear 41 and its sleeve 234 and associated parts. The upper or maximum diameter of the staff spindle 235 affords a free journal for a sleeve 244 formed integrally with the gear 233, and fitting tightly within the spool 240 to be driven thereby.

The resetting system comprises the knob 250 mounted on a shaft 251 extending through the casing 110 and the sealing band 120 and supported in the stirrup 60'" fastened to the base plate 10 A coil spring 252 is mounted about this shaft and at one end is engaged therewith, and at the other end is engaged with the stirrup 60*, so that at all times the torsion of this spring tends to move the knob 250 to an end position in one direction, At its inner end the shaft 251 carries a disk 253 (Fig. 7 having an outstanding antifriction roller 254 which engages in the peripheral groove 241 of the spool 240. This disk 253 also has a peripheral notch 255 thereon to receive the pin256 mounted on the 'detent 257 pivoted about the pin 258 of the stirrup 60 A coil spring 259 engages a pin 260 of this detent 257 to maintain the pin 256 in constant contact with the periphery of the disk 253. A pin 261 extends away from the disk 253 and through an arcuate slot 262 of the stirrup 60", to limit the rotation of the shaft 251.

In operation, so long as the shaft 15 through the compensating train is driving the gear 41 and the resetting knob 250 is in the unactuated position, the movement of the gear 41 is transmitted to the clutch core member 42 so that this core member engages the balls 241 and hencedrives the external clutch member 239, and hence the spool 240 and the gear 233 and the hand I. Through the gear train and extensible shaft 18, the hand H is, also driven as hereinbefore described, and the number of gallons dispensed is indicatedon the two dials for ready inspection by the customer. As soon as the full delivery has been made, the pump attendant will actuate the knob 250 so that the pin 254 raises the spool 233 and therewith the hand I. As the spool 240 is raised, the outer clutch member 239 is raised and the balls and springs therein are carried upward by the bottom plate 238 until the balls no longer rest on the clutch core 42, but are brought onto the clutch core 239. It will be understoodthat during this raising, the gear 41 has been retained in its position by the driving clutch described in my copend ing application Ser. No. 167 ,7 99, and that all backlash or play in the connecting train, including the compensator, has been taken up by the work of overcoming the friction of the system and by the return spring to be described hereinafter.

Meshing with the gear 233 is a gear 270 mounted on a spindle 271 journaled in the deck plate 14. The gear 272 is fixed to move with the gear 270 and in .turn meshes with the resetting gear 27 3 which in turn is mounted on a pivot on the deck plate 14*. This resetting gear 27 3 has a number of upstandin lugs 274 on its face which have flat faces a apted to meet with the end of a resetting detent or pawl 275 which is pivoted by a screw 276 on the deck plate 14, and is held in an end position for such meeting engagement by a stop pin 277, and is forced against such stop by the spring 278. A resetting spring lever 280 is pivoted by a screw 281 on the frame, and is provided with the tension coil springs 282 and 283, the main coil spring 282 being substantially at right angles to the line of the lever 280 in the central position ofits movement, while the spring 283 exerts its effect substantially at the end of the movement of the lever 280 when the action of'the spring 282 is the least. The springs 282 and 283 therefore in a measure compensate each other, so that an even returning force is exerted upon the lever 280. The free end of the lever 280 engages with one of the lugs 274. It will be understood that in the position of Fig. 6, the lever 280 is hand, if the resetting gear 273 has six lugs Y 274, then after the gear 273 has moved through 60 in a counterclockwise direction as-driven from the gear 233, the lever 280 will have disengaged one lug 27 4 and engaged the next succeeding lug 27 4: and a similar action will have occurred with the detent 275.

It will be understood that the gear ratiofrom the gear 233 to the gear 273 is such that one rotation of the gear 233 corresponds to one-sixth of a rotation of the gear 273, or a passage of one lug 274 through an angle of 60.

Therefore, as the gear 41 is turned, the gear 233 is driven with it through the clutch systern, and hence the resetting gear 273 increases the tension on the springs 282 and 283, which prevents the existence of back lash in the gear trains. As the balls 241 are raised from the retained core 42 to the free core 237, the springs 282 and 283 can now act tov rotate the resetting gear 273 in a clockwise direction, and hence the gear 233 in a clockwise direction in Fig. 6, which corresponds to a resetting of the hand I, since this view is from the back of the dial. The movement of the lever 280 is therefore limited by the engagement of a lug 274 against the detent 275, and hence the returning movement comes to a standstill when thehand I has been reset to the zero position, and with it the hand of the dummy device, A further safeguard is provided by the provision of the sto 71 on the dial D for engagement with the and as described in my copending application.

If during the liquid dispensing operatlon, the hand has moved through more than 360,

at the exact moment that the hand passed the maximum indication and proceeded on its second revolution, the detent 275 snaps down behind the next succeeding lug 274, to determine a stoppage of the hand at this polnt. On

the contrary, the lever-280 is so designed with respect to its length and the position of the pivot 281, that it does not snap down from one lug 274 to the next lug 274 until the hand passed a substantial distance, such as onequarter or one-half of a division beyond the maximum indication. In this way, if a delivery be made of 20 gallons with a devlce calibrated to a maximum of twenty gallons,

the returning movement is only that corresponding to one-quarter gallon on the scale of the dial D, but is accomphshed by a full tension ofthe spring 282, so that there is assured a full return to 'zero.

A great advantage of this is that the overlap between the angular position at which the detent is reset and that at which the lever 280 of the return spring is reset safeguards the return of the system to zero: so that by no misadventure in assembling, by reason of a short lever 280 or detent 275, does the lever 280 drop from one lug 274 before the detent 275 drops from its corresponding lug 274: so that at all times a sufficient tension is maintained upon the system to permit a full return of the gear 273, which would not be necessary were the system designed so that the lever 280 and the detent 275 were calculated to drop at the same instant, i. e., at the passage of the maximum indication. It will be understood that the detent 275 must at all times drop at the maximum indication: and that the relationship of the position of the hand I, the lugs 27 4 and the pivot 276, with respect to the detent 275, must be such that this action is effected.

It is preferred to have the spring 282 under an initlal tension when the hand I is at zero so that a return from even an indication of one-quarter of a llon is complete. Thus, for example, if a elivery' of two gallons has occurred, the spring 280 will immediately and positively return the indicating system to zero: although its movement will correspond only to a movement of the hand by of a revolution.

If a delivery of say twenty-two gallons has been accompllshed, the detent 275 will snap down behind the next lug 274 at the passage of the maximum indication: while the lever 280'will snap down at say the P215521 e of the ing the movement of the knob 250, and swings back until retained by the auxiliary stop 71'. It will therefore be understood that the stop 71" and the detent 275 cooperate in restoring the hand to an exact zero. In particular, it will be noted that the indication of the hand I in a clockwise direction when viewed in face occurs at a plane close to the dial D: while its return to zero occurs in a plane ferther removed from the dial, as set forth in my co ending application before mentioned. For t is ur the auxiliary stop 71"- is fixed to the dial at a point outside of the path of the hand I and projects over the path a of the hand when mo in its indicating plane byintereepting the nd during its return movement 1n the resettin plane. This auxiliary stop 71"therefore -o are no resistanee or obstruction to the free movement of the hand I in indicating, even though more than the maximum indication be exceeded. This has been pointed out and described and claimed in my aforesaid applicatlon, and since it is not claimed herein, this feature is not described in further detail.

During the first part of the rotation of the knob 250 the roller 254 has moved the spool 240: but the disk 253 has pressed outward against the pin 256 and the springs 259- by reason of the notch 255, so that there is at first considerable resistance to this movement: but this resistance is overcome as the pin 256 leaves the notch 255 and passes onto the circular-periphery of the disk 253: and at.

this moment also the spool-240 has raised the balls 241 onto the loose clutch core 237. In this way, it is impossible for the attendant to fraudulently release the hands from the control of the actuating train and permit a partial backward movement, and then allow the hand to fall down onto the dial and the train to re-engage throu h the balls 241 engaging with the core mem er 42. The returning moment of the spring 252 is so slow in action that the lever 280 has meanwhile brought the hands H and I back to the zero position.

When the knob 250 is released, however, the sprin 252 acts to force the roller 254 downwar with the spool 240, and again bring the balls 241 into engagement with the core member 42. Since the movement of the spool 240' is contrary to the movement of the gear 41 during the train actuation, there is no force tending to move the gear 41 out of its true position during this resetting: and in fact any friction existing between the loose clutch core 237 and its surrounding elements tends to hold the ear 41 in'such position that no play or bac -lash arises in the driv ing gear train: so that a registering device as described in my copending application as being meshed with the gear 41 and driven thereby, remains in its same position during the resetting.

,Further, owing to the width of the face of the gear 233, this gear remains in mesh with the idler 232 throughout the returning movement, so that the hands H and I are reset to ther.

Alt ough the device ma be applied for the registration of any desire quantities: it may be indicated that in conjunction with a. system such as described in my aforesaid applications, for the delivery of twenty gallons as a maximum indication, I- provide the gear 233 with eighteen teeth, the gear 270 with thirty-two teeth, the gear 272 with sixteen teeth and the reset gear 273 with fifty-four teeth: so that a six to one gear reduction is established. Likewise, in the driving system for the dummy dial, the gears 201 and 208 are formed in an illustrative exam le constructed with sixty teeth so that the and H travels at the same speed in angular movement as the telescoping shaft 18, The gear 231 is provided with eighteen teeth to correspond to eighteen teeth on the gear 233 while the idler 232 may have any desired diameter to mesh properly with the two gears 231 and 233, the axes of which are respectively determined by the separation of the shaft 18 from the axes of the hands H and I. These figures are merely illustrative and are given to show a particular form of construction:

but it will be understood that by a suitable selection of other gear ratios the separation of the axes of the shaft 18 and the hands H and I may be varied as desired.

It is particularly pointed out with respect to the device that by the employment of a movement reducing train for the resetting system, the movement of the resetting lever 280 is limited to any amount, and that the disk or gear 273 itself moves through a maximum of for each resetting. Since in practice it is found that 90 or 92% of the sales of gasoline are of five gallons delivery, it is immediately apparent that the springs acting on the lever 280 usually have a relatively small movement, and are seldom stretched even to their maximum extension corresponding to approximately a twenty gallon delivery. 'lhe springs therefore have very long life.

Atlhough an illustrative example has been set forth of the apparatus, it will be understood that the invention is not limited solely thereto but that it may be modified in many ways within the scope of the appended claims.

l/Vhat is claimed as new is:

1. In an indicating apparatus for a liquid dispensing system having a hollow standard, a plurality of indicating devices mounted on said standard and having moving parts connected and enclosed by said standard, and a shaft connecting moving parts of said devices so that they are adapted to be actuated together to give the same indication, said shaft being extensible so said devices may be moved with regard to each other while being placed on and removed from said standard.

'2. In an indicating apparatus for a liquid dispensing system having a hollow standard with apertures thereirrsubstantially diametrally opposite one another, a first indicating device mounted on said standard over one of such apertures, a second indicating device pivotally mounted on said standard over the other aperture, and a shaft connecting moving parts of said devices so they are adapted to be actuated together to give the same indication, said shaft having a universal joint therein and being extensible so that said second device may swing on its pivot after said shaft is connected to both said devices.

3. In an indicating apparatus for a liquid dispensing system having a hollow standard with apertures therein substantially diametrally opposite one another, a first indicating device mounted on said standard over one of such apertures, a second indicating device.

pivotally mounted on said standard over the other aperture, and means connecting moving parts of said devices so that they are caused to move together and give the same indication, said means permitting the devices to be moved with respect to each other.

4. In an indicating apparatus for a liquid dispensing system having a standard, a pair of oppositely directed indicating devices mouhted on said standard and individually movable with regard thereto, and means for connecting moving parts of said devices so that they are caused to move together and given the same indication, said means permitting the movement of the devices with respect to each other while in such connected relation. 1

5. In an indicating apparatus for a liquid dispensing system having a standard, a pair of oppositely directed indicating devices mounted on said standard, means for connecting moving parts oi said devices so that they are caused to move together and to move through proportional distances for a given volume dispensed, and means to initially correct said devices so that both will give the same indication.

6. In an indicating apparatus for a liquid dispensing system having a standard, a pair of oppositely directed identical indicating devices mounted on said standard, each of said devices having a relatively movable dial and pointer, means for connectingsaid devices so that they move together, and the relative movements are equal, said connecting means including a device to reverse the movement of one device relative to the other so that they both move in the same apparent direction when individually viewed in face, and means in said connecting means to initially correct said devices so that both will indicate correctly on its respective scale.

7. In an indicating apparatus for a liquid dispensing system having a hollow standard with parts ofthe dispensing system disposed centrally therein, a pair of oppositely directed indicating devices mounted on said standard and each comprising a dial having a pointer moving about a horizontal axis, said axes substantially coinciding and passing through the center of said standard, and means for connecting said devices to cause said pointer to move together, said connect ing means including gearing and a shaft horizontally offset from the axes and substantially parallel thereto.

8. In an indicating apparatus for a liquid dispensing system, a base member, a driving shaft journaled in said base member, a gear member loose on said shaft, an indicating llll scale element and a pointer element, one of said shaft, whereby the relative position of said elements being fixed to said base memsaid scale and pointer elementsmay be varied her and the other said element being driven independently of the movement of said shaft. 10 by said gear member, and means to drive said In testimony whereof, I aflix my signagear member from said shaft, said driving tnre.

means including devices to permit adjustment of the angular relation of said gear to J AMES M. DAYTON.

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