US2293333A - Dispensing pump register and ticket printer - Google Patents

Description

A118. 1942- E. E. EICKMEYER ET AL ,293,333

DISPENSING PUMP REGISTER AND TICKET PRINTER Filed March 22, 1938 10 SheetsSheet 1 GALLONS v l: i "-115 :5 4 f l 'l |I if 15 ,i I. I

a FI EE.

(TH/5 SPACE OPTIONAL mg FOR ADVERT/S/NG 1 OR THE um) l1 INITIAL-0O- 1 FINAL 0 s 4 (/D'NT/F/CA TION OF 4 SERVIC STAT/0N) F71 E 54 94 5. f/CAMEYEA 10 Sheets-Sheet 2 mus/atom f/IFL E. Dex/vamp ANTHONY 6. #0 m TH Hzzor/ze z J Filed March 22, 1958 E E EIGKMEYER ETAL DISPENSING PUMP REGISTER AND TICKET PRINTER Aug. 18, 1942.

A 1942- E E. EICKMEYER ET AL 2,293,333

DISPENSING PUMP REGISTER AND TICKET PRINTER Filed March 22, 1958 10 Sheets-Sheet 3 N l L\ a: a

\ fill/6722075 5,421 f. f/C/(MEYEA? 3 ANTHONY G. HO/FVAT M M Attorney:

- 10 Sheets-Sheet 4 [APL E.

Aug. 18,1942 E E EICZKMEYER ETAL DISPENSING PUMP REGISTER AND TICKET PRINTER Flled March 22, 1938 18, 1942- E. E. EICKMEYER ET AL 2,293 333 DISPENSING PUMP REGISTER AND TICKET PRINTER Filed March 22, 1938 10 Sheets-Sheet 5 EARL f. f/C/(MEYER J I ANTHONY 6. Ham/4TH "II/IIIIIIIIII 1942- E. E. EICKMEYER ET AL 93,333

DISPENSING PUMP REGISTER AND TICKET PRINTER Filed March 22, less 10 Sheets-Sheet 6 Attarnggs Aug. 18, 1942. a. E. EICKMEYER ETAL 2,293,333 DTSPENSI'NG PUMP REGISTER AND TICKET PRINTER Filed March 22, 1938 10 Sheets-Sheet 7 F1 .1 4 177 f IE 1 l. 12 j 176 22 20 J "HEM/0115, EARL E. EICKMEYER, ANTHONY G. HOR VATH,

a ra-M0041,

g- 1942- a. E. EICKMEYER ETAL 2,293,333

DISPENSING PUMP REGISTER AND TICKET PRINTER" Filed March 22, 1938 10 Sheets-Sheet 8 l lv. 53.20 g

J46 14 5f Q39 J45 144 156 161 Anni-nay:

Aug. 18, 1942. E. E. EICKMEYER AL ,29333 DISPENSING PUMP REGISTER AND TICKET PRINTER:

' Filed March 22, 1938 10 Sheets-Sheet 9 ANTHONY G. Ho)? v4 Th A mm gm ug. 18, 1942. E. E. EICKMEYER Em 2,293 333 DISPENSING PUMP REGISTER AND TICKET PRINTER Filed March 22, 1958 10 Sheets-Sheet 10 5 ANTHONY 6. HORVA TH A sitar/2 eg/d Patented Aug. 18, 1942 DISPENSING PUMP REGISTER AND TICKET PRINTER Earl E. Eickmeyer and Anthony G. Horvath, Dayton, Ohio, assignors to The Dayton Pump and Manufacturing Company, Dayton, Ohio, a corporation of Ohio Application March 22, 1938, Serial No. 197,524

2 Claims.

This invention relates to gasoline dispensing pumps.

It is the object of our invention to provide a gasoline dispensing pump in which a visual indicator, a recorder and printer are operated by a meter through which the gasoline passes as it is being dispensed.

It is a further object to provide for such an arrangement of the printer that the ticket is printed and delivered upon the placing of the hose nozzle upon its supporting hook prior to the return to zero of the visual indicator so that the customer can compare the printed amount on his ticket with the maximum indication on the visual indicator.

It is a further object to provide for an interlocked manually operable means for returning the visual indicator to zero, together with the printer wheels, after the ticket has been printed and issued subsequent to the hanging of the nozzle on the hook.

It is an object of the invention to provide a support or hook for the hose nozzle which is so arranged that when the nozzle is removed and this hook is moved upwardly, the condition of the visual indicator and its associated printer wheels will be indicated by the taking of an impression of such registration on the ticket to be issued; and upon the completion of the dispensing operation and the downward movement of said hook, then the final printing will take place of the number of gallons visually indicated as having been dispensed.

It is a further object to provide means of severing the printed ticket.

It is an object to provide means of printing on the ticket various advertising matter, station identifications and the like.

It is a further object of this invention to provide means associated with said hook for connecting a motor to an electric circuit to operate a pump which supplies the gasoline to the meter.

It is an object of this invention to provide the printer wheels on the same shafts as the indicator wheels so that they will turn together to insure that the visual indication and the printing registration are identical.

Referring to the drawings:

Figure l is a front elevation of a pump embodying this invention with the front wall thereof broken away to show the motor, pump and meter.

Figure 2 is a side elevation of the printing and indicating mechanism boxes with the cover removed to display the interior of the printer mechanism box. This view is taken on the line 22 of Figure 3.

Figure 3 is a front elevation with the cover I partially broken away from the indicator and the parts of the indicator wheels broken away to show the totalizer mechanism. This view also shows in front elevation, partially in section, the printer mechanism and its relationship to the visual indicator.

Figure 4 is a detailed enlarged view of the hose supporting hook and its connections to the motor switch and the printer mechanism.

Figure 5 is a top plan view, partially in section, showing the visual indicator and printer mechanisms.

Figure 6 is an exploded, isometric view with the type wheels moved to one side and shown in detail, illustrating the feeding, printing and shearing mechanism of the printer.

Figure 7 is an isometric view, partially in section, showing the arrangement of the feed wheels for feeding the paper strip. These rollers or wheels are in the position they occupy between the initial and final printing operations.

Figure 8 is an isometric view of the paper feeding rollers and associated gearing and a portion of the vertically moving actuator bar. The parts are in the position where the reset handle has returned the feed rollers to their initial feeding position, but the gearing still has some distance to move in order to return to the initial position. This gearing returns to its initial position and, when it does'so, it is in the position shown in Figure 6, just prior to a new cycle of dispensing gasoline.

Figure 9 is a side elevation, in detail, of the vertically moving shifter rod, on which are cams for actuating the halves of a fork, that serve to control the printing mechanism. This figure shows the parts as the bar is moving downwardly when the hook has been taken off the handle at the initial stages of dispensing gasoline so as to bring about the initial printing operation which consists of pressing the carrier, having the platen on one end, against the paper and carbon sheet to take an impression from the type wheels. Figure 9 shows the forked end of this carrier for the platen.

Figure 10 is a similar view showing the cam and bar in a lower position, with one of the pivoted fingers on the fork elevated.

Figure 11 is a top plan view of the detail assembly of the chopper mechanism with the sheet in section and with the supporting walls of the frame in section.

Figure 12 is a section on the line |2|2 of Figure 11, looking in the direction of the arrows.

Figure 13 is a section on the line |3-| 3 of Figure 5.

Figure 14 is a section on the line l4l4 of Figure 15.

Figure 15 is an elevation looking at Figure 14 from the righthand side to show how the type wheels are supported.

Figure. 16 is a section on the line Iii-I6, looking in the direction of the arrows in Figure 11.

Figure 17 is a section on the line Il-I'I of Figure 20, showing the position of the paper strip, the carbon sheet, the feed rolls, the type impression wheels, the platen and the chopping mechanism.

Figure 18 is a detail enlarged view of the cam chopper spring release.

Figure 19 is a detail View of Figure 18, looking in the direction of Figure 18 from the righthand side thereof.

Figure 20 is a section on the line 20-2El of Figure 2, looking in the direction of the arrows, showing the relative position of the paper feed roll's, iprinter wheels, chopper and associated "mechanism. 7

Figure 21 is a section on the line 2'I-2I of Figure 2, which shows a sliding support for the pivot of the linkage system actuatedby the hose hook for actuating the vertically reciprocable bar and associated mechanism.

Figure 22 is a section on the line 22-22 of Figure 11, looking in the direction of the arrows, showing in detail the position of the control mechanism for the ticket chopper. The parts in Figure '22 are in the position of rest of the machine prior to its initial operation.

Figure 23 is a similar view to Figure 22, showing the parts in the position when the vertical bar moves down and the chopper controlling cam has forced the locking .ipawl out of locking position so far as the spring is concerned, but this also looks the spring again through placing another type of locking pawl into engagement with a square peg.

Figure 24 is a similar view showing the parts in position with the spring released, the cut-off mechanism in motion and the cut-off eccentric at the extreme of its throw. The vertical bar is also looked against return movement to insure that thecut-off operation will be completed withouta-downwa'rd movement of the bar. This prevents a further unwinding of the spring before it can here-wound. The parts in this position are-in cutting position and the ticket is now being cut off. This is indicated by the eccentric being at its maximumtoward the left.

Figure 25 is a similar view showing the parts in position so that the locking pawl is being moved into locking position which it initially had, as in Figure 22. This first locking pawl locks the spring that does the cutting against movement.

Figure 26 is a similar view showing the parts in position, where the bar is about to be unlocked.

In this figure, the parts are at rest after the chopping movement and before the start of the re-winding of the spring movement.

Figure 27 is a similar view showing the parts in such-a position where the bar is unlocked and the resetting operation is "taking place, which results-in re-winding the spring and storing energy in it for anothercutting operation.

Figure 28 is an exploded isometric 'view showingthe. chopper mechanism partially in section.

"The parts are pictured in the at rest position,

prior to any actuation.

Figure 29 is a View of a typical ticket after printing.

Referring to the drawings in detail, Ifis "a base 'of'a gasoline dispensingicabinet having side walls 2 and front and rear walls 3. Mounted upon this base upon legs 4 is a pump 5 and a motor 6. The

motor is provided with a switch I that is opened and closed by a rod 8 that is connected to a hose handle 9 pivoted at It). This hose handle is adapted to support the free end of the dispensing hose that is shown at II.

The gasoline pumped by the pump 5 passes upwardly through the pipe i2 through the trap I3, meter I4, pipe I5 and thence to the hose I I. The meter M is provided with a driven shaft I6 which performs the multiple function of actuating the visual indicator, the printing wheels and paper feeding mechanism. It also actuates a total gall'on counter that is associated with the visual indicator and actuates the shield that is intermittently interposed over the face of the indicator wheels.

Visual indicator mechanism The drive shaft I6 actuates the bevel gear I! which meshes with the bevel pinion I8 on the shaft I9. This, in turn, actuates the bevel gears 25 and 2i and the gears 22 and 23 which turn the counter wheels 24. These counter wheels are reset by the reset device 25, the exact nature of which forms no part of this invention.

The shaft I9 carries -a pinion 26 which meshes with the indicator gear 21 mounted upon the shaft 28. This gear meshes with gear 29 on the shaft 38 rotating on that shaft and also rotating the indicator wheel 3| which is connected to the gear 29. The indicator wheel 3| has on its opposite face a gear 32 also freely mounted on the shaft (i0. Gear 32 then drives gear 33 which is mounted upon a sleeve 3 on the shaft 28. The other end of this sleeve 34 is connected to the gear 35 which drives the gear 3 5 freely mounted on the shaft 3?. The gear 36 is connected to the indicator drum 31a so that drums 3'I and 31a turn together.

Returning to gear '32, there is mounted on one face thereof a disk 38 which has a pair of transfer teeth marked 39 that intermittently engage, once each revolution of drum 3 I, with the pinion A51 to move that pinion sufficiently to cause the next drum 4|, through gear Ma, to move onetenth of a revolution. The drum 41, in turn, has

a gear 32, a plate 63 and transfer teeth 44 engaging with the pinion 45 which, in turn, meshes with gear 46 that rotates the drum 4! one-tenth of a revolution.

Drum 41 has a gear 48 which meshes with the gear 49 on the sleeve 50. This sleeve carries a gear 5! which engages with agear 52 on the drum 5?, so that drums 53 and 41 travel together. Likewise, the gear d2 of drum Al meshes with the gear 54 on the sleeve 55 which carries a gear 56 that engages with the gear 51 of the intermediate drum 53 to actuate that drum so that drums II and 58 travel together.

The connection "between gear i Iaandthe dr 4| is as follows: The drum il is free upon the shaft 30. Likewise, the gear Ma is free on the shaft 30. When the meter is driving the gearing to rotate the indicator wheels such as @I ,lthe-gear Ma is moving. It carries a ratchet 59 whose teeth are inclined in-One direction. These teeth are engaged in one direction by'a pin mounted on a swinging lever that is pivoted on a boss on the inside of drum H. The movement of the gear, therefore, causes the drum, through this ratchet and pinion construction, to m'ovewith it. This is during the movement cf the drum for indication purposes.

The said lever has connected at its freeend a helical spring, the other end of which is connected to another bosson the drum 4 I. The first mentioned boss has pivoted on it a pawl that is spring pressed by another spring into engagement with a notch in the shaft 30. This comes into play only when the mechanism is being reset to zero by manual operation, so that the latter pawl then engages with the notch and the shaft 30. As the reset mechanism operates the shaft 30, this serves to carry the drum M in the direction to return it to zero for a new indication. In this manner, the wheels are cleared of their indication and are brought back to zero registration through the reset mechanism.

Printing mechanism The printer wheels I35, I36 and I31 respectively indicate, reading from left to right, fractions, units and tens, as will be more fully seen in Figure 6. Type wheel I35 is mounted upon the sleeve I38 which is connected to the drum 31a. The type wheel I36 is mounted on the sleeve I39 and is connected to the drum 58. The type wheel I31 is mounted on the sleeve I40 which, in turn, is connected to the drum 53. Therefore, thes type wheels rotate with these drums so that the setting or actuation of these drums will correspondingly set or actuate these type wheels.

The paper strip is wound into a roll MI and is mounted upon the axle I42. The strip itself is designated I43 and is fed between the two feeding 'rollers I44 and I 45. The roller I 44 is a resilient roller and the roller I45 is a hard roller. The roller I45 carries advertising or identifying data to be printed on the strip. As hereinafter described, this particular printing operation (other than the numerical) takes place when the return-to-zero mechanism feeds the paper strip preparatory to a new cycle of operations so that these designations are printed prior to the initial printing operation of the status of the visual indicator at the beginning of the dispensing operation.

There is also fed between the rollers I44 and I45, in engagement with the paper strip, a carbon strip or carbon ribbon I46. This is a continuous ribbon that passes over a guide I41, and thence over the type wheels. It is guided over the type wheels by the guide I48. It passes between the face of the type wheels and the paper strip I43. On the other side of this paper strip is the platen I49 that forces the paper and carbon strip against the type wheels. The carbon strip then passes around the guide I50, guide II, guide I52, guide I53, guide I54, and guide I55, back to the feed rolls.

Returning to the roller I45, it will be observed that it is mounted upon the shaft I56 that is mounted in the respective walls of the enclosing cabinet for the printer. The connection between this shaft and the roller I45 consists of a cross pin I51 which is adapted to work within the slots I58 on the inside of the roller I45. The purpose of this loose connection is to permit of the advancing of the roller I45 a limited distance before the shaft I56 turns.

The shaft I56 carries a pinion gear I59 which meshes with a gear I60. These gears I59 and I60 turn freely on the respective shafts I56 and I6I. Gear I59 is connected by the rivet or rOd connection I62 to the roller I45 to turn with it.

The gear I60 is connected by a rod or rivet I63 to the roller I44 and to the cam look I 64 by the rod or rivet I65.

This cam lock consists of a cam body having a nose I66 and a cut-away portion I61. The

nose engages with a bell crank pawl having one end designated I69. This pawl is pivoted at I10 upon the vertical reciprocable bar slide I1 I. This pawl I69 is forced in one direction by the spring I12 mounted at I13 upon the bar I1I. The successive positions of this pawl are shown in Figures 6, 7 and 8.

The actuation of these rollers I44 and I45 is effected in the first place by the bar I1I through the engagement with the cam disk I 64 of the pawl I68 with the cam nose I66. This takes place when the bar moves upwardly upon the return of the hose to the hook and the downward movement of the hook. The hook 9 is connected to this bar I1I through the lever I02, shaft I03, and link I04.

The pivot pin I04a connects the link I04 to the bottom of the bar I1I. This pin also is a guide which projects between the spaced guide members I 14 and I15. This is shown in elevation in Figure 2 and in a detail section in Figure 21. These guide members I14 and I 15 are carried upon the enclosing housing for the printer, generally designated I16. The purpose of this movement of the bar, so far as the feeding of the paper is concerned, is to move the paper to its final printing position from the initial printing position so that it can receive its final impression from the type wheels I35, I36 and I31 to indicate the same amount that appears upon the visual indicator at the end of the dispensing operation. Thereafter the chopping or severing operation takes place for severing the ticket so printed. This will be hereinafter explained.

After the severing operation takes place, there is a further movement of the paper through these rollers I44 and I 45 in order to place it in position for the initial printing operation at the beginning of a new cycle of operations. This positioning of the paper at this time is a part of the resetting operation and a part of, and subsequent to, the cut-off operation. Therefore, it is necessary to describe the operation of this mechanism by now referring to the zero resetting mechanism which performs the several functions of bringing the type wheels I35, I36 and I31 and the several indicator drums 3|, M, 41, 53, 58 and 31a to their zero positions, and which also serves to cause the paper strip to be fed to its new position after a portion of it had been cut, upon which the previous printing operations have been performed.

The zero resetting mechanism is actuated by the handle I29 which is mounted upon the shaft I30. The shaft I30 carries the gear I11 which is pinned to the shaft. Shaft I30 is known as the reset shaft. This gear meshes with another gear I18 which is carried on the shaft I19 loosely. In practice this is simply a screw bolt forming a short axle. Gear I18, loosely mounted on I19, is connected by rivets or pins I to a companion fragmentary gear I8I that is also loosely mounted on I19. This gear is provided with teeth I82, a portion of which are cut away at I83. It meshes with the pinion gear I84 that is pinned to the shaft I 56. It is connected by rivets or pins I85 to the cam follower disk I86 having a nose I81 carrying a cam follower roller I88. This roller follows the periphery I89 of the cam disk I 90 loosely mounted on the shaft I 19 and connected by pins I9I to the gear ISI. This cam I 90 is provided with a low point I92 which receives the roller I88 and the nose I81 of the disk I86.

203 and -When the handle I29 is rotated, it rotates the shaft I36, the gear IITI, the gear I18, the fragmentary gear IN, the pinion I85, the shaft I56, the roller I 15, the gears I59 and IBI] and the roller Hid. It also rotates the disk I86 and the cam disk I90. The result of these movements is to advance the paper to a positionfor its initial printing operation for the next succeeding cycle of printing which will be initiated by the upward movement of the hose hook 9 when the new dispensing operation it started. The function of I92 is merely to accommodate the roller I88 and its nose IS'I due to the revolution of several .parts.

It will be observed that, after the gear I'Sfi has been given a complete revolution by the fragmentary gear teeth I82, the shaft I39 continues to revolve and, during that period, the cut-away portion I83 of the disk I8I clears the teeth of I84 so that it is not rotated, and at the same time, the roller I38 can roll freely upon the surface I-89 of the cam I98. This, therefore, permits the continued operation of the handle I29 and shaft I39 for other purposes after having performed the primary feeding function of the initial feeding of the paper by the rollers I64 and I 35.

We now come to the imprinting of the final impression upon the paper of the ultimate amount of liquid dispensed, as shown by the type wheels. This printing operation takes place by reason of the movement of the platen [49.

This platen is carried upon a carrier bar I93. The bar is provided with a yoke at its right-hand end having a pair of spaced arms I94 and IE5 to form the yoke. There is pivoted on either side of this yoke, pivoted yoke fingers I96 and I97. The finger I96 is drawn upwardly by the spring I98 that is connected to it at one end and to the stationary yoke arm I9 at the other. A similar spring IEiSa holds the pivotal yoke finger IS'I downwardly.

These yoke fingers are operated by cam H39 carried on the loop 2% of the bar HI and by the cam fit-I carried on the face of a second loop 202 which is also carried by the bar I'II. One of these cams, such as cam I99, engages with the nose Idea when the bar I'II is moving downwardly. The purpose of this is to flex the .plate spring 233 which is supported at 2% so as to store energy in that spring and the helical spring 285 to push the carrier I93 with its platen Hi9 against the paper carbon strip and type wheels.

When the cam I99 passes by the nose I96a, the carrier I93 is released and this snap action brings about the printing operation which is the initial printing operation. It will be recalled that the bar ITII is moved for this purpose by the upward movement of a hook 9 after removing the hose at the starting of the dispensing operation.

The final printing operation takes place when the bar I'II moves upwardly when the hose hook 9 is pulled downwardly at the conclusion of a dispensing operation. In this instance, the cam 28I operates in the same manner upon the pivoted finger IQ? for storing energy in the springs 2% which, when released by the movement of the nose IQ'Ia from the cam 2%, results in another printing operation which is the final printing operation. Thus, both printing operations are performed through the reciprocation of the bar III, which reciprocation takes place as the result of actuation of the hose hook 9.

When one finger is operative, the otherrcan slide over its cam. This is shown by Figures 9 and 10., which illustrate such an action when the bar III is moving downwardly. I

Chopper The ticket, as it descends, is fed into a guide 286. It drops into this guide when it is severed. This severing operation is performed by a knife 207 which is drawn back with its carrier 208 by a connecting link 269 connected to an eccentric disk 2I0 mounted on the shaft I35]. As herein after described, energy is stored in the spring which, when released, causes the carrier 208 to carry the knife 20'! forwardly to shear the paper strip to form the ticket.

It will be recalled that the shaft I30 is a reset shaftiturned by the handle I29. The wind- .ing of the spring .2II is effected by the reset shaft, ISII when it is turned back by the handle I29 to .zero resetting position. The release of this spring tension to cause the chopping operation is by the bar I'II when it makes its upward movement as a result of hanging the hose on the hook 9.

With particular reference to the storage of the energy in spring ZII, the shaft I3 is connected by a .pin 2I2 to a hub 2'I3 which carries at one end the stub shaft 2M, upon which the handle I29 is directly mounted. It is also pinned to a disk 2I5 that, in turn, is connected by the stud 2i? 'to the spring 2i I. This spring is wound on a drum Z'II mounted on the shaft I3fi. This is a loose mounting. The other end of the spring 2 is connected at 2I8 to a stud 2I9 on a disk 22%. This disk is also loosely mounted upon the shaft I3'II. This disk, in turn, is connected by a pin 22I to the eccentric 2I0. This eccentric is loosely mounted-on the shaft I36.

'T-he eccentric 2H3 is connected by the pin 222 to a disk mounted on a hub 224 that is loosely mounted on theshaft I 38. The other end of this hub 224 carries a disk 225 which is provided with a cross pin 226 having a projecting end 22'! so that it projects completely through the disk 225 and on either side thereof. The end 221 of this pin engages with the nose 228 of a pawl 229 which is mounted pivotally by the screw 230 upon the stud 23 I. This pawl is provided with a locking nose 232 and with a. pin 233.

Returning to the disk 225: it is provided with a square pin 234 adapted to engage it with a shoulder 235 in a pivoted lever 2S6 carried on the stud 23I. This stud carries a transverse locking finger 237 having a locking nose 233 that is adapted to engage with the notch 239 in the bar I'II. Returning to the shaft I30: there is mounted on that shaft, loosely, a finger 240. This finger is adapted to engage the two pins E -II and '242 mounted in the face of the gear I'II. This gear is pinned by the pin [11a to the shaft I30.

The wall I16 supports the shaft I38 and also the boss 2 33 that acts as a support for the screwthreaded shoulder stud 23L The reciprocating bar III carries a pin 244 which serves to engage with the lever 236 to disconnect it at its other end from the square pin 234 when the bar I'II is moving upwardly. This .is the means of releasing t'he mechanism so that the spring 2 can unwind and cause the lefthand movement of the carrier 268 to press the chopper blade 201 against the paper strip to sever a ticket.

The lever 236 is urged into engagement, normally, before it is unlocked, with the bar 234 by the spring 236a which is mounted upon the stud 23| and is connected atone end to the lever 236, and at its other end to the locking pawl 231. It performs the further function of causing the nose 238 to engage with the pawl 239 in the bar III to maintain it against downward movement. The purpose of this is to prevent an undesired amount of unwinding of the spring 2H and to limit the unwinding to that sufficient to bring about a chopping operation so that it will not become completely unwound and so that it will be held against complete unwinding until it can be re-wound.

The several positions of this mechanism during these several operations just described are shown in Figures 22 to 27. Figure 22 shows the parts at rest, at the beginning of a dispensing operation. Figure 23 shows the parts getting ready to be moved to unlocking position to permit the spring to unwind. In this position, the bar III is going down so that the cam 245 will engage with the pin 233 to move the pawl 229 and its nose 228 out of the path of the pin 221.

It will be noted that, in Figures 22 and 23, the nose 238 is out of engagement with the shoulder 239 so that this downward movement of the bar "I can take place. This nose is held out by the pin 226.

Turning to the next view, Figure 24, when the bar III has moved upwardly, then the parts are shown with the bar I'II locked against downward movement by the nose 238 being in the notch 239. The parts are shown, in Figure 24, in the extreme cutting position.

In Figure 25, the parts are shown with the pawl 232 being engaged with the pin 22! to restore 228 and 229 to their position shown in Figure 28.

Figure 26 shows the parts at rest after the chopping operation and ready for the resetting operation.

Figure 27 shows them in re-winding position.

Sequence of operations The following is a summary of the sequence of operations:

The pump is assumed to be at rest with the hook carrying the hose handle; the motor is stationary and the current is out 01f. The mechanism has been returned to zero. The visual indicator and the type wheels indicate zero.

The operator lifts the hose nozzle off the hook 9 and pushes up the hook. He thereby closes the switch I by actuating the rod 8. The pump starts to deliver gas through the pipe I2 and meter I4. The gas will flow through the meter I 4 if the hose nozzle is open. This will rotate the shaft I6, turning the indicator wheels and the printer wheels.

The action of the operator in lifting the hook 9 results in printing the zero designation upon the strip, which designation is also the condition of the visual indicator. The strip has already received printing from the hard roller I45 of the advertising and other identifying data, This was accomplished when the return-to-zero mechanism actuated by the handle I29 fed the paper strip ready for the initial printing operation, at which time the chopper spring 2II was also wound.

The dispensing operation continues for the amount of gas desired. The operator then hangs the nozzle on the hook 9, pulling the hook down. This causes the bar I II to go up and results in three things happening. The paper strip is fed one step so as to receive the final printing operation, which final printing operation is caused by the downward movement of the hook 9. Then, the further movement upwardly of the bar I'II results in the release of the chopper spring 2 and the actuation of the chopper 201 that severs the ticket that drops through the chute 206, all of which takes place before the mechanism returns to zero.

Then, the operator grasps the return-to-zero handle I29 and rotates its shaft I39, again storing up energy in the spring 2I I, feeding the paper strip to a new printing position and printing the advertising matter upon it. This also returns the indicator and the type wheels to zero.

If this is not done, and the operator attempts to again lift the hose from the hook 9 and repeat a cycle of operations, then the guard over the visual indicator wheels will drop and cover them to prevent him from finding out how much gas he is dispensing to the new customer.

This assumes that, in order to start the second illegal dispensing operation, he has pushed up hard enough on the hook 9 to cause the bar I'II to descend and break the hook 238, which would otherwise lock it. It will be understood that you cannot dis-engage 238 from 239, a shoulder on I II, until you have returned the mechanism back to zero. So this machine provides a dual protection to a legal dispensing of gasoline: the first is the hook 238, and the second is the shutter release mechanism. Additionally, the third safeguard is that, as the paper strip has not been re-fed for a new printing operation, because there has been no zero resetting, there would be no ticket issued to be printed upon and the second customer would not get a ticket which he would properly demand.

It will be understood that we desire to comprehend within our invention such modifications as come within the scope of the claims and the invention.

Having thus fully described our invention, what we claim as new and desire to secure by Letters Patent, is:

1. In a printing mechanism, hard and soft feed rolls geared together, one of which rolls is loosely supported for limited movement on a shaft, means for driving said shafts together, a vertically reciprocable bar, means thereon to lock said feed rolls against movement, a spring actuated printer, printing wheels, and means associated with said bar for storing energy in said spring and thereafter releasing it as the bar reciprocates to cause a printing operation.

2. In a ticket printing and issuing mechanism, hard and soft feed rolls geared together, one of which rolls is loosely support-ed for limited movement on a shaft, means for driving said shafts together, a vertically reciprocable bar, means thereon to lock said feed rolls against movement, a spring actuated printer, printing wheels, means associated with said bar for storing energy in said spring and thereafter releasing it as the bar reciprocates to cause a printing operation, ticket severing means, a spring to actuate it, means for storing energy in the spring actuated by the means for moving said feed rolls, and means associated with said bar for releasing said ticket severing means and the energy in the spring at a predetermined movement.

EARL E. EICKMEYER. ANTHONY G. HORVATH.

Images