USRE21041E - Signal device for dispensing pumps - Google Patents

Description

April 1939. c. s. HAZARD SIGNAL DEVICE FOR DISPENSING PUMPS ori inal Filed March 16, 1956 5 Sheets-Sheet 1 lllll INVENTOR (liar/ls (S- Hazard W A A ATTORNEYS April 4, 1939. c. s. HAZARD v SIGNAL DEVICE FOR DISPENSING PUMPS Original Filed March 16, 1936 3 Sheets-Sheet 2 INVENTOR marks off/ 120M Fill um II Ill @M m ronusvs April 4, 1939.

c. s. HAZARD Re. 21,041

SIGNAL DEVICE FOR DISPENSING PUMPS Original Filed March 16, 1936 3 Sheets-Sheet 3 4 1E 15 W A AT OFQNEYS Reiuued Apr. 4, 1939 Charles S.

Jersey 13 Claims.

This invention is directed to a warning signal interconnected with an indicating register on a liquiddispensing pump for informing customers whether or not the indicator was at zero position at the beginning of a dispensing operation.

Dispensing pumps are known in which a means for controlling the flow of the liquid is interconnected with a means for resetting the indicating register to zero position. One type of device is provided with switch connections for starting or stopping the pump, either simultaneously with the return of the indicator to zero position, or after the indicator has been returned'to zero. Devices of this type are shown in the U. S. Patent Nos. 1,970,361 and 1,953,598.

Another type of dispensing pump is provided with a valve in the liquid conduit which upon actuation by a manually controlled device either permits the liquid to flow through the dispensing hose or prevents it from doing so, depending upon whether or not the indicator has been reset to zero. This type of interlocking dispensing device is shown in the U. S. Patent No. 2,022,932.

The present invention is directed to a dispensing device in which the pump motor is controlled ported, the operation of the motor being entirely independent of theposition of the indicator at the beginning of a dispensing operation. In order to insure that the pump will be so operated as to give an accurate indication of the amount of liquid dispensed, the pump is provided with a warning signal device which informs the customer as to the condition of the indicator at the beginning of a dispensing operation.

More specifically, the warning signal is interupon actuation resets the indicator to zero posiinto such a position that a designation will appear in the indicator dial showing that the indicator-has been reset to zero. If the indicator is movement through a different distance, at the end of which movement the device'is stopped, thereby moving the signal into such a position that a designation showing that the indicator has not been reset to zero wlllappear on the indicator dial.

The specific means for limiting the movement of the warning signal preferably consists of a con-, trol member which is dsplaceable only after the indicator is at zero position. 'The operation of the positive engagement of stop means on the indicator so that the control member cannot be UNITED STATES- 21,o41 SIGNAL nnvrcr: FOR DISPENSING PUMPS Hazard, Andover, N. J., assignor to Neptune Meter Company, a corporationot New v by a movable hook upon which the hose is suption and releases the signal device for movement 1 not reset to zero, thesignal device is capable of v the control member is entirely-dependent upon,

PATENT OFFICE Original No. 2,061,538, dated November 17, 1936, Serial No. 69,059, March for reissue June 27, 1938,

16, 1936. Application Serial No. 216,190

displaced until the indicator at zero position.

It will thus be understood that the purpose of this invention is to inform the customer as to whether or not the indicated amount of liquid has actually been dispensed, thereby causing the operator of'the dispensing device to reset the indicator prior to every dispensing operation to avoid the loss of patronage through argument with customers.

The present invention has the further desirable is positively located feature that if the customer desires to obtain an additional quantity oi liquid after a dispensing operation has been completed and the dispensing hose has been returned to the hose hook stopping the motor; the removal of the hose from the hook will again start the motor and pump to dispense an additional quantity of liquid andthe two quantitles of fluid will be totalized on the indicator, the signal being oii a character to warn the attendant and customer of the fact that the indicator has not been reset but which at the same time permits accurate reading of the quantities dispensed.

With this explanation in mind, reference is made to the accompanying drawings in which:

Figure 1 is an elevation of the dispensing-device with a portion of the housing removed;

Figure 2 is a plan view partially broken away of a detail of the resetting mechanism for the indicator and the interlocking controls for the signal device;

Figure 3 is a view in elevation of the resetting mechanism for the indicator and the interlocking controls for the signal device; also partially broken away; 4 Figure 4 is a perspective view of a detail of the latch lever and the camlever;

Figure 5 is a sectional view of the lost motion connection between the resetting crank shaft and the shaft for resetting the indicator;

Figure 6 is a sectional view of the lost motion connection taken on line 6-45 of Figure 5;

Figure 7 is a view in elev tion of the lost motion connection with the housing removed;

Figure 8 is a view in elevation of a detail of the signal operating means with the latch lever shown diagrammatically in three positions; and

Figure 9 is a view in elevation of the signalplate carrying the designations.

The dispensing device indicated generally as A in Figure 1 includes uprights .2 for supporting various elements. A cross member 4 carries the motor 6, provided with a switch I, for driving a pump 8 to pump the liquid from a source of sup ply (not shown) Supported on upper cross memher I6 is a meter I2 of any desired type. A conduit I4 connects the inlet side of the pump 6 to the source of liquid supply. A second conduit I6 leads from the outlet of the pump to the meter I2; and a third section of the conduit I6 leads from the outlet of the meter to a dispensing hose 26 having a nozzle 22. The nozzle 22 has a hand controlled valve 24 thereon of any well known type.

Connected to the meter I2, through gearing and a friction clutch (not shown). is an indicator provided with an aperture 26, the purpose of which will be later described. It will be understood that any conventional type of gearing may be provided between the meter and the indicator hands, and that two hands may be provided for indicating the number of gallons and fractions of gallons of fluid dispensed, these elements forming no part of the present invention. The purpose of the clutch between the indicator and the meter is to permit rotation of the indicator hands to zero position without necessitating the nutation of the disk in the meter, or turning the gears between the meter and the indicator.

In one wall of the housing C for the device an aperture 36 through which projects a supnozzle 22'pivoted at 34. A

is port 32 for the hose I hand crank 36 on shaft 36 is journalled in bearing 46 in the housing C. In alignment with the shaft 36 and connected for movement therewith and also relatively thereto, as hereinafter explained, is another shaft 42 journalled in bearings 44 and 46 in journal plates 45 and 41, supported in any desired manner in the housing. Pinned to shaft 42 for rotation therewith is pinion 46 (Figures 2, 3 and meshing with gear 56 to turn gears 56, 52 and 54 upon rotation of shaft 42. Gears 56, 52 and 54 are supported for rotation on lever 56 which is loosely supported on shaft 42 for free movement thereabout.

The end gear 54 of a train of gears is arranged to engage with a pinion 56 pinned to shaft 66 journalled in bearings in journal plates 45 and 41 (as shown in Figure 2). At the outer end of shaft 66 is a bevelgear 62 engaging a similar bevel gear 64 which is in turn pinned to shaft 66 for rotation therewith. Shaft 66 is journalled in bearings 66 in the housing C and drives a gear train mechanism (not shown) for operating two hands on the indicator for indicating whole and partial gallons of fluid dispensed. For purposes of illustration, however, it will be assumed that a shaft 66 is directly connected.

to the hands 16. To shaft 66 is also connected the gearing (not shown) from the meter I2 and shaft 66 is rotated thereby-to register the quantity of fluid passing through the meter. As shown in Figure l the shaft 66 also carries a single tooth cam 12, which upon rotation in a counterclockwise direction is engageable with a pawl 14 mounted the indicator dial zero position on the dial.

54 is engaged with pinion crank 36 will cause rotation shaft 66, and will return the terclockwise direction to zero position pawl 14 will engage the tooth of cam 12 and to stop the indicator hand at Assuming that gear 56, rotation of the of shaft 42, shaft 66, hands 16 in a counstop rotation of the shafts 66, 66 and 42.

As previously mentioned, shafts 36 and 42 are relatively movable through the mechanism disclosed in Figures 5, 6" and '7 and indicated generally as D. As shown in Figure 5, the mechanism D consists of a recessed disk 16 pinned to shaft 42 for rotation therewith. Supported in the recess of the disk and secured thereto is a on the housing or the back of where the cam member 16, having diametrically spaced lobes 66. Attached to the recessed disk 16 by stud bolts 62 is a housing member 64 which is shiftable away from the disk16 against the compression of springs 66. Supportedrigidly in the housing 64 is a bearing plate 66, through which shaft 36 projects and is rotatable with the relation thereto. Passing diametrically through the shaft '36 is a pin 92 carrying at each end a set of independently rotatable rollers 94 and 66, roller 96 being of greater diameter than 94, as best shown in Figure 6. The roller 94 engages the cam lobes 86 when the shaft 36.is rotated relatively to shaft 42, the rollers riding upon the cam and displacing the housing 64 axially of the shaft 36, with rollers 96 bearing against the plate 66. Thus when the indicator is stopped at zero position by engagement of pawl 14 and cam 12, the shaft 42 is also stopped as previously indicatechand a further rotation of shaft -by crank 36, causes an axial displacement of housing 64, against the compression of springs 66.

Supported on a bracket I66 by a pivot pin I62, is a control member I 64 having a projection I66, extendng across the flange 96 and adapted to be rocked in a counterclockwise direction as viewed in Figure 2, by displacement of housing 84. At the opposite end of the control member I64 is a projection I61,'having along one lateral to be described.

Journalled in plates 45 and 41 is a shaft II6, as shown in Figures 2, 3, and 4, having pinned thereto at opposite ends a latch lever H2 and a signal actuating lever H4. The latch lever I I2 carries at its free end a pair of spaced lug members H6, H6 between which is pivotally supported latch I26 which normally overlies, but does not engage the projection I61 on the control member I 64, as shown in the full lines in Figures 3 and 8. Projecting from a lateral edge of the latch lever H2, is a. stop lug I22 for a purpose to be described.

Loosely supported on shaft H6 is a yoke member I24 having arms I26 and I26 through which passes the shaft II6. Attached to the yoke member I24 is a lever I36 which is shown as ,being integral with the yoke member. At the outer end of lever I36 is an inclined cam surface I32 which is engageable with an edge of the projection I61 when the control member I64 is in a displaced condition. Upon movement of the lever I36 in a counterclockwise direction, the control member I64 is returned from a displaced position clockwise to the position shown in Figure 2. The yoke I24 is also provided with a stop arm I33 which projects in the opposite direction from the lever I 36 and which is engageable with a portion of the housing to limit the movement of the lever to the lowermost position indicated in broken lines in Figure 8. Connecting the lever II2 for movement with lever I36 is torsion spring I 34 which tends to hold stop lug I22 against the lever I36. Also connected to yoke I24 is a lever I36 having an offset portion I36. Pivotally connected to lever I36 is one end of a link I46, the other end of which is pivotally connected to lever 56 for moving the gear 54 into and out of engagement with pinion 56 on shaft 66, as levers I36 and I36 are moved up. and down around shaft II6. Connecting the inner end -of the hose-support and offset I36 of lever downwardly.

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switch 1, through arm I46. A weight I48 is provided on arm I46 for moving the lever I36, I38 downwardly and for throwing the switch 1 into on position to start the motor and pump. The weight of the hose 20 and nozzle 22 is sufficient to move the switch arm I46 with weight I48; link I44, levers I30 and I38, I38 to ofi position to stop the motor and pump, and to engage gear 54 with pinion 58.

Thus when the hose is removed from the hook, the weight I48 pulls switch arm I46 down to on position, rotates the lever I38, I36 in a counterclockwise direction to disconnect gear 54 from pinion 58, move lever I30 downwardly and through torsion spring I34, pull latch lever II2 down to engage the latch I20 with projection I01 on the control member, and also move lever II4 Connected to the free end of-lever II4 by pivot I50 is one end of a link I52, the opposite end of which is connected by pivot I54 to a pawl carrying member I56'having pawl I58 pivoted thereon. Pawl I58 is biased in a counterclockwise direction by spring I60. The pawl carrying member I56 is supported for oscillatory movement on shaft 60, and the pawl engages with a' four toothed ratchet I62, integral with or rigidly attached to gear I64, also loosely rotatable on shaft 60. Meshing with gear I64 is a pinion I66, rotatably mounted on stud shaft I68 supported on plate member 41. The gear I64'and pinion I66 are so proportioned that one revolution of gear I64 causes four revolutions of pinion I66. Projecting from the pinion I66 is a crank pin I10, engaging in an arm I12 on the signalling device. Arm I12 is pivotally connected at I14 to the signal carrying arm I16 which is in turn pivotally supported at I18 for oscillatory movement as the crank pin I10 is rotated. Attached to the opposite ends of signal carrying arm I16 are signal members I80 which areapproximately twice as wide as the vertical width of the aperture 28 in the signal dial and fall directly behind the aperture. As shown in Figure 9, the upper half of the signal member intended to be moved up and down with respect to the dial aperture 28 on the left side of the dispensing device, as viewed in Figure 8, is provided with a designation indicating that the indicator has not been.reset to zero position and the lower half of the signal member is provided with the designation indicating that the indicator has been resetto zero. The signal member at the right side of the dispensing device has the location of the designations reversed. With this arrangement, the designations exposed through opposite dial apertures will be the same, no-

matter what the'position of arm I16 may be.

The operation of the device is as follows: Assuming that a dispensing operation has been completed and the dispensing hose has been returned to the movable hose support 32, and that a 10 gallon quantity of fluid has been delivered in the dispensing operation; the indicator will then read 10 gallons, the motor will be stopped and the control member projection I01 .will be located under the latch I20 on latch lever I I2 with the latter in its highest position as shown in Figures 3 and 8.

To dispense another quantity of fluid, the hose is removed from the hook 32 permitting it to swing upwardly, thereby closing the switch, starting the motor and pump,movlng the gear 54- out.

of engagement with pinion 68 on the shaft 60', and moving latch lever H2 and lever I30 downwardly.

latch I20 engages the projection I01 on the control member I04, thus moving only approximately one-half of the distance through which it is capable of moving (see Figure 8). Lever II4 also moves through a corresponding arc and the pawl I58 moved by link I52 engages the ratchet I62,

turning gear I64 through one-eighth of a revoludownwardly, rocking signal carrying arm I16 counterclockwise, and exposing through the aperture in the indicator the designation warning the customer that the indicator has not. been reset to zero. nozzle 22 is then opened to dispense the fluid, the warning signal will remain in the indicator aperture, informing the customer that the final amount of the reading on the indicator dial is inaccurate.

Assuming the same situation to exist as that set forth in the first paragraph of the description of the operation of the device; to cause the signal to indicate that the indicator has been reset to zero, the resettingcrank 36 is turned to cause the indicator to return counterclockwise to zero position through the rotation of shafts 38, 42,

thetrain of gears, 48, 50, 52, 54 and 58, shaft 60, gears 62 and 64 and shaft 66. The indicator shaft 66 turns until stop means 12 and 14 engage,

If the valve 24 in the dispensing thereby preventing further rotation of shaft 66,

gears 48, 50, 52, 54 and 58, shaft 42, and cam surface-18, 80. Further rotation of crank 36 relatively to cam lobes 80, the rollers 94 riding up on the lobes 80 of the cam 18 displacing the housing 84 axially of shaft 36, and swinging the projection I01 on control member I04 from beneath the latch I20. Upon removal of the discauses rotation of shaft 38 and rollers 84, 96

pensing hose from the hose hook, the motor is the control member I04 turning the latter clock- The cam surface wise, as viewed in Figure 2. I08 engages latch I20, tilting it back so that the projection I01 may pass thereabove as the latch moves downwardly. Lever I I4, moving with latch lever II2, causes pawl I58 to rotate ratchet I62 and gear I64 through one fourth of a revolution, thereby turning the gear I66 and crank pin I10 through 360, and oscillating signal support arm I16, but finally returningthe arm and signal to the position shown in Figure 8. whereby the designation indicating that the indicator has been reset to zero position is exposed through the aperture in the indicator dial. The hand valve on the nozzle is then opened to dispense the fluid, the quantity of fluid being registered on the indicator.

A dispensing operation having been completed,

the replacement of'the hose upon the support H2 is.

lifts switch arm I46 to oif" position, thereby T5 stopping the motor. As the lever llll reaches its highest position, the lever I36, I38, acting proper operation of the pump has occurred. It

will also be apparent that while the signal operates to warn the attendant and customer whenever a dispensing operation is attempted without first resetting the indicator to zero position, the indicator is adapted to totalize accurately the quantities dispensed in a plurality of dispensing operations so that after completion of a dispensing operation, an additional quantity may be delivered at the request of the customer without having to take the time usually necessary to reset the indicator.

It will be evident that there may be many variations in the specific manner of actuating the signal, falling within the range of mechanical equivalents of the structure disclosed; that there may be many variations in the usage to which the signal device and the dispensing apparatus, as a whole, may be put, all falling within the scope of the invention, as defined in the following claims.

I claim:

1. Ina warning signal for dispensing pumps, a member having two designations thereon, each of which is individually exposable to view, a movable arm carrying said member, a latch lever operatively connected to said arm for moving the member, and control means movable to two posi tions, in one of which the latch lever is engageable with the control means and in the other the latch member passes beyond the control-means, to thereby expose the designation corresponding to the position of the control means.

2. In a warning signal for dispensing pumps, a member having two designations thereon, each of which is individually exposable, a movable arm supporting the said member, means including a pawl and ratchet for movingsaid arm, a lever carrying said pawl, a latch lever connected to the pawl carrying lever for movement therewith, and control means movable to two positions, in one of which the latch lever engages the control means and in the other the latch member passes beyond the control means, to thereby expose the designation corresponding to the position of the control means.

3. In a warning signal for dispensing pumps, a control member movable to a plurality of positions, a pivoted latch lever engageable with the control member in one position of the latter, and

free of the control lever in another position of the latter, a second lever connected to and movable with the latch lever, a signal device including a member having a plurality of individually exposable designations thereon, and means connecting the second lever to the signal device member for moving the latter to expose the designation corresponding to the position of the control member.

4. Ina warning signal for dispensing pumps, a control member movable to a plurality of positions, a pivoted latch lever engageable with the control member in one position of the latter, and

free of the control lever in another position of I the latter, a. second lever connected to and movable with the latch lever, a signal device including a member having a plurality of individually exposable designations thereon, and means in-. cluding a pawl and ratchet and a crank for connecting the second lever to the signal device member for moving the latter to expose the desig nation corresponding to the position of the control member.

5. A dispensing pump having a housing, an indicator on the housing, means for resetting the indicator to a predetermined position, an aperture in the housing, a signal device including a member having two designations thereon, one of which indicates that the indicator has been reset to the predetermined position and the other indicates that the indicator has not been reset to the predetermined position, and means connected to the resetting means for moving the member to expose through the aperture one of said designations corresponding to the position of the indicator.

6. A dispensing device, comprising a housing having an aperture therein, fluid flow producing means, a pivoted hose hook connected to said I means for controlling the fluid flow, an indicator on the housing, means for resetting the indicator to a predetermined position, a signal device ineluding a member having two designations thereon, one indicating that the indicator has been reset to the predetermined position, and the other indicating that the indicator has not been reset to the predetermined position, and meansoper atively connected to the signal, device, the resetting means and the hose hook, for exposing through the aperture only the designation corresponding to the position of the indicator.

7. In combination with a dispensing device having an indicator and means for resetting the indicator to zero; means displaceable from one position to another positicn by the resetting means after the indicator has been reset to zero, a pivotally supported latch lever engageable with the displaceable means in said one position and movable to said another position, a second lever connected to and movable with the latch lever operatively connected to a signal means for moving the latter to one of two positions to indicate that the indicator has or has not been reset to zero.

8. In a fluid dispensing device, an indicator for registering the quantity of fluid dispensed, means for resetting the indicator to zero, a control member displaceable by the resetting means when the indicator has been reset to zero, a movable signal having actuating means movable into engagement with the control member prior to displacement of the latter and movable beyond the control member after the latter has been displaced.

9. In a fluid dispensing device, the combination of a fluid pump, a meter for measuring the quantity of fluid pumped, an indicator connected to the meter for r gistering the quantity of fluid pumped, movable means for resetting the indithe ratchet, a latch lever movable with the pivoted lever and engageable with the control memher in one position of the latter and movable beyond the control member when it has been displaced, and a third lever connected to the latch. lever for starting and stopping the pump.

10. In a fluid dispensing device, the combination of a fluid pump, means for actuating the pump, a meter for measuring the quantity of fluid dispensed, indicating means for registering the quantity of fluid dispensed, movable means for resetting the indicator to zero, means connected to the resetting means, displaceable by movement of the resetting means after the indicator has been reset to zero, a control member engageable with the displaceable means, and movable upon displacement of the latter, a movable signal device including a pivotally mounted arm, a latch lever operatively connected to the pivotally mounted arm for movement therewith engageable with the control member in one position of, the latter, but movable beyond the latter upon displacement thereof by the resetting means, another lever flexibly connected to the latch lever but capable of movement relatively thereto,'said another lever being connected to the pump actuating means for moving the latch lever into engagement with or beyond the control member.

11. In a dispensing device, the combination 01 means for dispensing fluid, means for starting and stopping the dispensing means, an indicator for registering the quantity oi fluid dispensed,

positions for exposing designations indicating whether or not the indicator has been reset to the predetermined position, a latch member operatively connected to the signal device and resiliently connected to the means for starting and stopping the dispensing means for movement with and relatively to the latter for exposing the designation corresponding to the condition 01' the indicator with regard to its relation to the predetermined position.

12. In a liquid dispensing device, the combination of an indicator movable away from an initial position in proportion to the quantity oi liquid dispensed, means for resetting the indicator to initial position, means for initiating a dispensing operation, and signalling means operatively connected to said indicating means and said resetting means to signal when the indicator has not been reset to said initial position prior to the initiation of a dispensing operation, said signalling means being clear of readings indicated by said indicator.

13. In a liquid dispensing device, the combination of an indicator movable away from an initial position in proportion to the quantity of liquid dispensed, means for resetting the indicator to initial position, means for initiating a dispensing operation, and signalling means op- CHARLESRHAZARD.

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