US2592706A - Type ribbon feed device for race totalizator ticket issuers - Google Patents

Description

April 15, 1952 A. F..JuL1Us ETAL 2,592,706

TYPE RIBBON FEED DEVICE FOR RACE TOTALIZATOR TICKET IssuERs f2 l f3 6 prl 15, 1952 A. F. JuLlus ETAL 2,592,705

TYPE RIBBON FEED DEVICE FOR RACE TOTALIZATOR TICKET ISSUERS Filed June 30. 1948 5 VS11ee"r,s-Sheet 2 April 15, 1952 A. F. JULlUs ErAL TYPE RIBBONv FEED DEVICE FOR RACE TOTALIZATOR TICKET ISSUERS 5 Sheets-Sheet 3 Filed June 30, 1948 Patented Apr. 15, 1952 UNITED STATES PATENT' FFlCE TYPE RIBBON FEEDDEVIC FOR RACE p TOTALIZATOR TICKET ISSUERS Application June 30, 1948, Serial No. 36,164

In Australia June 30, 1947 2 Claims.

This invention is referable to race totalisator ticket issuers of the type broadly classifiableas incorporating an operating vhandpiece which on suitable manipulation, causes closure of an operating circuit for a Winf place or other adding `unit for a particular competitor, lthus to record a required ticket issuing transaction relative to that competitor. In addition to being instrumental in the recordingofeach transaction, operation of the handpiecealso conditions printing ortype devices in readiness for printing the 'required ticket. Operation of the handpiece also actuates interlock means for locking the handpiece against further operation until the `printed ticket has actually issued, and is also instrumental in closing the circuit of a magnetic clutch associated with the drive shaft of a continuously .running motor. Closure of the clutch circuit, and

Vconsequent drive through the clutch, causes rotation (through worm or other gearing) of a cam shaft, which on completion of a single revolution `is halted by automatic opening of the clutch circuit. i

A revolution of the mentioned cam-shaft (working throughthe agency of suitable gearing, camfollowers, bell-cranks, links, levers, or the like) operates:

(a) A platen or backing pad whereby va ticket .portion of a ticket strip or roll is pressed towards the previously conditioned type devices, an inked ribbon being disposed between the type and the yofthe camshaft revolutionrto record a `total printed ticket output of the issuer.

The present invention is concerned withmeans for travelling ari-inked ribbon through :a printing station forming part of a ticket issuer of thegeneral type indicated above.

Eiisting ribbon feeding devices comprise a winding reel which for each actuation of the is- :.:-suef r camshaft is turned through a small angle give short step-by-step motiongof the ribbon through the printing station. These prior ar- (CI. IUI-336) rangements are `defective in that provision has only been made for automatically winding Vthe ribbon in onedirection, and when the ribbon has been completely Wound in this direction-it has been necessary to rewind the ribbon manually, back from one reel to the other. This frequently causes serious delay when the ribbon runs-out during a busy period of ticket issuing.

The object of this invention is to overcome the stated disability vby the provision of simple ribbon feed devices in which, when the ribbon has completely unwound `from one reel on to a second reel, the reel drive is automatically reversed and the ribbon slowly rewindsin reverse sense, thus enabling both the 4forward and reverse traverses of the ribbon to be effective Working traverses.

rihe invention may be summarised as'the provision, in or for a race totalisator ticket issuer, of type ribbon Vfeed devices preferably comprising, a pair of independentlyfrevoluble reels, intermittent unidirectional drive devices for both of the reels, a pair of cam levers having throws (or humped portions) able to idle the drive devices in respect of either one of the reels, a pair of `ribbon guide or throw-over. rollers mounted respectively on the cam levers, a link pivotally `connected to both of the levers, and a spring-loaded toggle able to impose either one oftwo stableand eiective working positions on the cam levers.

An example of the invention is illustrated by the ,drawings herewith. i

Figur-e 1 is a side elevation of a winding reel assembly.

:Figure 2 is a'plan projected from Figure `1. y

Figure 3 is a sectional endelevation takensubstantially on line 3-3 in Figure 1.

Figures 4 and 5 are schematic side elevations of the assembly shown in the remaining iigures, showing the main parts in their two stable working positions respectively. i

The ribbon feeding means comprise a rpairrof Winding reels independently revoluble on parallel shafts 6 and 'l mounted on a frame 8 adapted for conventional mounting on an issuer chassis, indicated at S. AEach of these reels consists of a central barrel (Ioland Hiwithiianges (I2-and I3) at one end thereof. The reel barrels are furnished with conventional means '(not shown) for attachment `of inked ribbon ends thereto. Each of the reels has a ratchet drive `wheel (I4 and I5) rigidly mounted concentrically thereon. These drive wheels arepreferably about equal in diameter to the reel flanges and function as ribbon guide flanges for the `reels in the same `mannerf as iianges I2` `andgI-I.

The ratchetuwheels are adapted for respective engagement by a pair of drive pawls I6 and and a pair of stop pawls |8 and |9 able to prevent back rotation of the ratchet wheels. The two stop pawls maybe formed as a single element from a piece of spring wire having a short helical coil therein which forms a convenient mounting for the element by tting loosely on a pin 2| or the like homed in the frame 8. Y

The two drive pawls are pivotally mounted, by way of holed U-shaped end portions 22 and 23, on a pin 24 carried by a U-shaped swing bracket 25 which is radially oscillatable about a pin 25. Bracket 25 isV disposed between the winding reels. Each of the drive pawls is furnished with a loading spring (21 and 28) which iniluences it to remain in driving engagement with its respective ratchet wheel. The swing bracket 25 has one end of a driving link or pitman 29 pivoted thereto. The other end of this link is adapted to be riciprocated by a cam, crank or the like keyed on or otherwise driven from the issuer cam shaft. Y Two ribbon guide of throw-over rollers 30 and 3| are respectively mountedv on a pair of plate- likecam levers 32 and 33 which are freely mounted on the respective reel shafts 6 and 1. The rollers 30 and 3| are thus orbitally movable relative to their respective reels. The cam levers are connected by a link rod 34 pivotally connected to both levers at 35 and 36. The cam lever 32 has two cam lobes 31 and 39 and the cam lever 33 has two Vcam lobes 38 and 40 thereon.

The cam throws have a slightly greater radius than the ratchet drive Wheels and are so arranged that upon bein-g placed in their limit positions, as shown to the right of Figure 4 or the left of Figure 5, they are able to hold the drive pawl and the stop pawl for the particular ratchet wheel clear thereof. In such condition these two pawls idle or ride ineffectively on their respecthe associated f apart that on rotation of the cam lever the toggle spring passes resistingly Vtowards and unstable dead centre position in which the pivot centres of the cam lever, the/toggle pin frame connection and thev drilled boss are in line. Equi- Y angularly on either side of this line are two limit positions (as shown by Figures 4 and 5 respectively) which either because of stops being provided or because the Vexpansive thrust of the spring 44 falls to zero, dene the limits of angular rotative movement of both cam levers. Both levers are thus affected by reason of their being joined by link 34. One of these limit positions (as shown by Figure 4) defines the working position for cam lever 32 and the idling position for camv lever 33, and the other limit position (as shown by Figure 5) denes the idling position for lever'32 and the working position for lever 33. When either of the cam levers is in idling positionits cam throws are so placed as to render the two pawls, for the related ratchet wheel, ineffective as described above.

.Assuming lever 32 is in working position (Figure 4) then its reel is conditioned to wind 4 up the inking ribbon 45, drawing it from the idling, that is freely revoluble, reel associated with lever 33. The ribbon passes round the throw-over rollers 3|) and 3| as shown. Upon reciprocation of the driving link or pitman 29,

`due to rotation of the issuer cam shaft in pery unwind from barrel because its end is anchored thereto, and when this tension is imposed as a side thrust on roller 3| and is such as to overcome the loading eiect of the toggle spring (by -a pull transmitted through lever 33, link 34 and lever 32) the toggle passes through its dead centre. position, moving the throw-over rollers orbitally, thus setting cam lever 32 in idling position (Figure 4) wherein its stop and drive pawls (I8 and I6) are rendered ineffective, by being held :of ratchet |4 by the cam throws 39 and 31, and placing cam lever 33 in working position so that its ratchet |5 becomes an effective driver, and the ribbon is then wound upon barrel until completely unwound from barrel l0 when tensioning of the ribbon about roller 30 again elects the changeover as described above. v Y

What we claim is: Y

1. In a type ribbon feed device for a race totalizator, a frame' adapted to be secured to a ticket issuer chassis, a pair of parallel shafts xed on said frame, a pair of winding reelsrespectively mounted on said shafts and freely rotatablethereon, oppositely positioned ratchet wheels xedly mounted on and forming parts respectively of said winding reels, an oscillatory bracket pivoted at one end on said frame between ,said winding reels, two oppositely extending'drive pawlsboth pivoted on the free end ofsaid oscillatory bracket and selectively engageable respectively with said ratchet wheels, springs mounted on said oscillatory bracket for biasing. said drive pawls into engagement with said ratchetwheels, an operating link Ypivotally connected to the free end of said oscillatory bracket, reverse rotation preventing pawls pivotally mounted 'on said frame and selectively engageable with said ratchet wheels, two cam members iireely mounted respectively on said shafts, said cam members each having two lobes respectively engageable with the associated reverse rotation preventing pawl and the associated drive pawl to hold same out of engagement with the associatedl ratchet wheel, a link interconnecting said cam members for conjoint operation, a pair of throw-over rollers respectively mounted on said cam members and adapted to remain constantly in contact with a type ribbon wound on both of said reels, and a spring loaded toggle device pivotally mounted on the frame and connected to one of said cam members for holding said cam members in either a first position wherein the lobes on one cam member are respectively in engagement with the associated drive and reverse rotation preventing pawls, or in a second positionwherein the lobes on the other cam member are respectively in engagement with the Yassociated drive and reverse rotation preventing pawls.

2. In a type ribbon feed device for a race totalizator, a frame adapted to be secured to a 'ticket issuer chassis, a pair of parallel shafts u. fixed on said frame', a pair of winding reels respectively mounted on said shafts and freely rotatable thereon, oppositely positioned ratchet Wheels lxedly mounted on said shafts and freely rotatable thereon, oppositely positioned ratchet wheels xedly mounted on and iforming parts respectively of said winding reels, an oscillatory bracket pivoted at one end on said frame between said winding reels, two oppositely extending drive pawls both pivoted on the free end of said oscillatory bracket and selectively engageable respectively with said ratchet wheels, springs mounted on said oscillatory bracket for biasing said drive pawls into engagement with said ratchet wheels, an operating link pivotally connected to the free end of said oscillatory bracket, reverse rotation preventing pawls pivotally mounted on said frame and selectively engageable with said ratchet wheels, two cam members freely mounted respectively on said shafts, said cam members each having two lobes respectively engageable with the associated reverse rotation preventing and the associated drive pawl to hold same out of engagement with the associated ratchet wheel, a link interconnecting said cam members for conjoint operation, a pair of throw-over rollers respectively mounted on said cam members and adapted to remain constantly in contact with a type ribbon wound on both of said reels, and a spring loaded toggle device for holding said cam members in either a first position wherein the lobes on one cam member are respectively in engagement with the associated drive and reverse rotation pawls, or in a. second position wherein the lobes on theother cam member are respectively in engagement with EVA DRONGHSIA ODIERNA JULIUS, AWDRY FRANCIS JULIUS, RUSSELL STUART HICKS, Eecutors of the Estate of George Alfred Julius,

deceased.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 1,065,531 Kavle June 24, 1913 1,594,800 Spear Aug. 3, 1926 1,876,687 Kappler Sept. 13, 1932 1,923,978 Coxhead et al Aug. 22, 1933 1,937,145 Gollwitzer Nov. 28, 1933 2,065,362 Brendel Dec. 22, 1936 FOREIGN PATENTS Number Country Date 404,658 Great Britain Jan. 18, 1934

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