US2390605A - Check controlled stop device - Google Patents

Description

Dec. 11, 1945. H. E. MARVEL I 2,390,505

CHECK CONTROLLED STOP DEVICE Filed Dec. 25, 1942 4 Sheets-Sheet 1 Fi .2 2 g 54a 533 545 54/ 55/ 535 Q. m 297 INVENTOR.

// V ATTORNEY V HARVEYEMARVEL\ Dec. 11, 1945. H. E. MARVEL CHECK CONTROLLED STOP DEVICE Filed Dec. 23, 1942 4 Sheets-Sheet 2 HARVEY MARV EL INVENTOR. lax/WV! I ATTOR N EY 11, 1945. H. E. MARVEL I CHECK CONTROLLED STOP DEVICE 4 Sheets-Sheet 3 Filed Dec. 23, 1942 HARVEY E MARVEL INVENTOR.

- BY WJZ/ ATTORNEY Dec. 11, 1945. H. E. MARVEL 7 CHECK CONTROLLED STOP DEVICE Filed Dec. 23, 1942 4 Sheets-Sheet 4 -H4Rv y E MAR-v51.

' INVENTOR ATTORNEY ing nozzle 21.

Patented Dec. 11, 1945 r UNITED STATES PATENToFFlcE CHECK CONTROLLED STOP DEVICE Harvey E. Marvel, Fort Wayne, Ind., asslgnor to S. F. Bowser & Company, Incorporated, Fort Wayne, Ind., a corporation of Indiana Application December 23, 1942, Serial No. 469,963

6 Claims.

' check or checks, to deliver a predetermined quantity of liquid and to thereafter close a valve in the dispensing line and prevent the opening of the valve until an additional check or checks are inserted in the machine.

An object of the invention is to provide means for setting a control device manually to permit dispensing and for looking it in dispensing posiion.

Yet another object of the invention is to provide means for automatically returning a control device to dispensing preventing position and for preventing its movement from such position untila required conditioning operation is performed.

Still another object of the invention is to provide means for releasing the control device for manual setting to dispensing position when a credit is posted on the predetermining mechanism.

These and other objects will be apparent from a study of this specification in connection with the drawings which are attached hereto and made a part hereof, andin which:

Figure 1 isjan elevation with parts broken away of a dispensing apparatus showing the control mechanism connected to it.

Figure 2 is a view of the trip mechanism and valve control mechanism in the actuated or flow preventing position.

Figure 3 is an expanded view of the trip mechanism and its drive gearing. I

Figure 4 is an elevation showing the valve-control and the check handling mechanisms.

Figure 5 is a sectional view of the valve and valve control mechanism. I

Figure 6 is a sectional view taken on line 5-6 of Figure 5 showing the valve and valve operator.

Referring now to Figure 1, numeral II represents a suction pipe which is connected at-one end to a source of liquid, such' as gasoline in a storage tank, and to a pump I5 at the other end. A motor I1 drives the pump and the liquid discharged therefrom pa'sses through an air separator I9, through pipe I to a meter 2I and thence through suitable piping and a hose to'a dispens- A switch 29 controls the motor I1 and is operated by a rod 3| which is connected to a-nozzle support 33. The support is controlled by a reset interlock mechanism 4| which prevents it from being moved up to themotor on position until the registering mechanism indicated generally by 13 has been reset to zero. This is accomplished by the shaft 41 and crank 33.

The meter drives a shaft 53 through suitable gearing 1| and the shaft drives a gear reduction mechanism 15. This mechanism drives alflexible shaft IOI housed in the tube 11, and drives the pinion I23 (Fig. 3) of the check operated predetermining mechanism indicated generally by numeral 19 in Figure 1.

Pinion I23 drives lever 20l through gears I33,

I4|,-I45, I41, a sector gear Ill, a multilated pinion l11, gears I81 and I91, the latter of which carries the lever. As is shown in Figure 2, lever 20I carries a pawl lever 205 which is provided with a tooth 201 and an extension 209 which has a nose 2| I. A spring 2 connects a pin 2|3 on 209 with a pin 2I5 on gear NH. The tooth 201 rides upon the periphery of a disk 313 which is provided with a notch 313, while the nose 2" is adapted, when it is drawn downby the spring 2", to engage a tooth 321 on starwheel 33L The starwheel is mounted for free rotation on the hub of the disk 313 and has connected to it a link 323 which is p.voted at 295 to one arm of a lever 291 which is, in turn, pivotally mounted on a pin 203. A spring 30I (Fig. 2) normally urges the lever in a clockwise direction. The starwheel is actuated by pawl 2 when the tooth 201 rides into the notch 319 of disk 313. The arm 20l moves in a clockwise direction (Fig. 2) when it is driven by the meter and is never moved in the opposite direction.

The disk 313 is rotated counterclockwise (Fig. 2) nine-tenths of a revolution foreach token inserted in the machine to position the notch 313 I to form token receiving pockets 243 and 245. The disk has two sets of ratchet teeth 231 on its periphery which are adapted to be engaged by a yieldable, non-return pawl 255. A pawl 215 is mounted to enter the check pockets and prevents rotation of the ratchet 241 to the place where it would be engaged by pawl 255 so long as no check is in the uppermost pocket. This pawl is cammed out of the way by a check in the pocket. and the other pocket is then caught by the pawl to limit the rotation of the handle.

A gear sector plate 323, having groups of teeth 333 and 335 on its periphery, is mounted to rotate with the knob. The teeth mesh with a gear 345 which drives a gear train 301,369 and the disk 313 described above. A locking sector disk 331 carrying sectors 353 and 351 serves to lock the sector 363 and, consequently, the gear train against rotation when the gear sectors are out of mesh with gear 345.

A cam 289 is also mounted to rotate with the knob and operates a cam follower lever 28!. This. lever is pivoted on pin l6! and engages pin 295 on the lever 291 as the knob is rotated so as to enough to receive a check, is actuated by a link 4 !9 and a crank 229 which is operated by the meter driven gear 123 through gears I33, !4!, I45, I41, !5I. I53 and 2!9.

Near the end of the advance of the cam follower lever 205, each one-tenth revolution, the crank 229 completes a revolution and discharges a check from the check tube 401 to the check safe or drawer 403 through an opening 40! in the slide support.

.The mechanism thus far described is disclosed in the patent to R. H. Damon et al., Number 2,247,480, issued July 1, 1941.

, Referring now to Figure 1, a valve 50! isconnected in the pipes and serves to permit flow from the pipe to the nozzle 21 when it is open and to stop the flow when it is closed. The valve is operated by a rotary stem 503 (Figs. 2, 5 and 6) which is housed in a sheath pipe 505 which passes through the back plate 504 of the mechanism 19.

A valve port 501 (Figs. 5 and 6) is closed by a poppet type valve 509 which is held on itsseat by a spring 5l3. A collar 5l9 is fixed on the stem 5l5 of the valve and a bifurcated shifter 5!1 mounted on shaft 503 coacts with the collar 5!9 to open the .valve against the spring 5I3 which normally holds the valve closed.

A check slide 4| having an opening 413 big pawl 521 which is urged in a counterclockwise direction (Fig. 4) by spring 529. A spring 53! is supported on shaft 523 and bears on arm 525 and on the bracket 52! to urge the 'arm 525 and lever 524 in a clockwise direction (Fig. 2).

In Figure. 5, 533 is a hub which is fixed on shaft 503 and which has fixed on it a ratchet 535 having two teeth or notches 531 and 539. The

pawl 521 is adapted to .engage notch 531 while a holding pawl 54! which rotates on a pivot pin 543, supported by bracket 52!, is adapted to engage notch 539. A spring 545 urges the pawl into engagement with the ratchet 535. The pawl v521 and ratchet 535 constitute a clutch for transmitting motion from lev'er 524 to shaft 503 A pawl knockout device comprises a bifurcated element 541 which straddles the hub 53:, riding- Two stops 555 and 551 are alsoset in the bracket 52! and engage the arm 525 to limit its movement.

Operation .Assuming. that there is no credit established on,the predeterminer and that the valve is closed, the operator will place a check in the uppermost check pocket. Upon rotation of knob 233, the latch 215 will be cammed out and the non-return pawl 255 will engage the teeth 231 ,to compelthe operator to complete the stroke. 7

As theknob' rotates, the gear teeth 333 or 335 of sector gear 329, whichever ones are in operating relation with pinion 345, will operate the trip cam 313 nine-tenths of a revolution to position notch 315 one-tenth of a revolution ahead of pawl 201 out of notch 319, the lever 2" is v lifted against spring 2!! to permit starwheel 38! and lver 291 to be rotated by spring 30!. The

motion of 291 being clockwise,-Figures 2 and 4. the link 552 will be pushed to the right and the periphery 55! of the knockout element will be moved to the right, to the.Figure 2 position, to permit the pawls 521- and 54! to ride on the periphery of the ratchet 535. a

By moving lever 524 to the right (Fig. 4) the hollow shaft 523',=arm 525' and pawl 521 will be rotated counter-clockwise (Figs. 2 and 4) away from stop 555 and pawl 521 will engage notch I 531 in the ratchet. When this occurs, shaft 503 will be picked up and, upon further rotation, the valve will be opened against the action of spring 5!3. Pawl 54! will engage notch 539 in the ratchet and hold it against return by-valve spring 5!3. The stop 551 limits the movement of the lever 524 and arm 525 and as soon as pressure is released on .the lever, the spring 53! returns it, arm 525 and paw! 521 to the; Figure 4 position with arm 525 against stop 555.

As soon as a check has been deposited in the tube 401 and the valvehasbeen opened, 3 the operator may reset the register 13, remove the nozzle from the hose hook and lift the hose hook 33 to start the motor !1 and pump I5, whereupon liquid will be delivered under pressure to the nozzle and it may be dispensed undercontrol of the usual nozzle valve. As dispensing occurs. the meter 2! drives the register 13 and the trip arm 2!0 by means of the shaft I0! and'the gear train described above, to advance the pawl 20! toward notch 319 in the cam 313. Near the end of each one-tenth revolution of the arm M0.

the crank 229 will position the opening M3 in slide 4!! over the opening 40.! and a check'will drop into the safe 403.

As the last deposited check isekpended, the

trip pawl 201 rides into the notch 319, the spring 2" causes the nose 2!! of lever 209 to-be pulled down upon a tooth 321 of the starwheel and over-' shaft 503 and the valve will befmov ed b y the valve spring M3 to the valve closing position.

. and serves to rotate lever 29! and actuate the associated parts to cause the valve to close. Consequently, the valve must be reopened after the insertion of every check. This mechanism serves a to prevent an operator from dispensing liquid with disk 313 m an intermediate position and to thus prevent the delivery of more than the amount of liquid represented by the check.

It is obvious that various changes may be made in the form, structure and arrangement of parts without departing from the spirit of the invention. Accordingly, applicant does not desire to be limited to the specific embodiment disclosed herein primarily for purposes of illustration; but

instead, he desires protection falling fairly within the scope of the appended claims.

What I claim to be new and desire to protect by Letters Patent of the United States is:

1. In a stop mechanism, the combination of a check presettable predetermining mechanism having preset and stop positions, means for receiving checks and variably presetting said mechanism in proportion to the value of the checks received, a control device having starting and stopping positions, manual means for moving said control device to startingposition, including a manually operable element and disengageable means for connecting said element to actuate said control devic'e, means operable by said mechanism when it occupies its stop position for actuating said disengageable means to dis-- connect said element and said control device, and

releasable means for holding said control device in starting position, said operable means also being adapted to release said holding means when credit is exhausted;

2. In a stop mechanism, the combination of a check presettable predetermining mechanism having preset and stop positions, means for receiving checks and variably presetting said mechanism in proportion to the value of the checks inserted therein, means for actuating said mechanism to its stop position, a control device having starting and stopping positions, manual means for moving said control device to starting position element movable between running and stop positions, means for receiving checks and variably presetting said mechanism in proportion to the checks received and for moving said element to running position, means for moving said element to stop position when said mechanism occupies its stop position, a stopv device having stopping and starting positions, a manually operable member, means including an automatically engageable clutch for transmitting motion from said manually operable member to said stop device and adapted to move the latter to starting position, yieldable means for normally holding said pawls against the ratchet, means for releasably holding said device in starting position, means operable by said element as it is moved to stop position for releasing said holding means and for disengaging said clutch, and means for moving said stop device to stopping position.

-4. In a stop mechanism, the combination of a check presettable predetermining mechanism having preset and stop positions, means for receiving checks and variably presetting said mechanism in proportion to the value of the checks inserted therein, means for actuating said mechanism to its stop position, a control device having starting and stopping positions, manual means for moving said control device to starting position comprising an actuator, a ratchet connected with said device, a pawl connected with said actuator and adapted to releasably engage said ratchet, a pawl adapted to engage said ratchet to hold said device in starting position, yieldable means for normally holding said pawls against the ratchet, a cam connected for operation by said mechanism and adapted to cam said pawls from said ratchet when said mechanism occupies its stop position, and means for returning said control device to stopping position.

5. In a stop mechanism, the combination of a check presettable predetermining mechanism having preset and stop positions, means for receiving checks and variably presetting said mechanism in proportion to the value of the checks received, means for actuating said mechanism to its stop position, a control device having starting and stopping positions, manual means for mov-' ing said control device to starting position comprising an actuator, a ratchet connected with said device, a pawl connected with said actuator and adapted to releasably engage said ratchet, stop means for limiting the movement of said actuator. a pawl adapted to engage said ratchet to hold said device in starting position, means for yieldably holding said pawls against said ratchet, and-a cam connected for operation by said mechanism and adapted to earn said pawls from saidratchet when said mechanism occupies its stopposition.

6. In a stop mechanism, the combination of a check presettable predetermining mechanism having preset and stop positions, means for receiving checks and variably presetting said mechanism in proportion to the value of the checks received, means for actuating said mechanism to its stop position. a control device having starting .and stopping positions, manual means for moving said control device to starting position comprising an actuator, a ratchet connected with said device, a pawl connected with said actuator and adapted to releasably engage said ratchet, stop means for limiting the movement or said actuator, yieldable means for holding said actuator in position against said stop means, a pawl adapted to engage said ratchet to hold said device in starting position, yieldable means for holding said pawls against said ratchet, and a cam connected for operation by said mechanism and adapted to cam said pawls from said ratchet when said mechanism occupies its stop position.

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