US1673375A - Tiengesellscttatt - Google Patents

Description

June 12, 1928.

P. RIEGGER FARE INDICATOR Filed Nov. l1, 1924 Fig- 4 Patented June 12, 1928.

, UNITED STATES PATENT OFFICE.

PAUL RIEGGER, OF BADEN, GERMANY, ASSIGNOR TO KIENZLE UHRENFABRIKEN AK- TIENGESELLSCHAFT, OF SCHWENNINGEN-ON-THE-MAIN, GERMANY, A CORPORA- TIoN 0F GERMANY.

FARE INDICATOR.

Application led November 11, 1924. Serial No. 749,205.

My invention relates 'to improvements in fare indicators.

Fare indicators such as are now in use are provided with three digit members or numeral wheels, the first one representing the tens of the smaller denomination ofthe money, such for example as the cents, while the other digit carriers represent the units and tens of the larger money denomination, such for example as the dollars. If by each operation of the indicator each step in the addition is in ten units of the smaller money denomination (cents) then a stationary zero indication may be used and onlyy the units of the tens advanced by the indicator operation. Fare indicators of this type are satisfactory in case of currencies of median value. But incase ofv currencies of low value it is frequently necessary to indicate amounts havlng more than 99 units ofthe large denomination so that the standard fare 1nd1- cator is insufficient. Onthe other hand in case 'of 'currencies of higher value, such for example as the dollar currency, it is desirable to advance the smaller units, vnot by ten l but bysmaller numbers, such as ve.

The object of the improvements is to provide a simple construction adapted to be a0 mounted in standard fare' indicators for increasing the number of the figures, so that the fare indicators are capable of registering `larger numbers incase of currencies of low value and of registerin units of the small denomination incase o currencies of high i value; With thisobject in view myfinvention consists in providing a fourth digit carrier behind the third one and connecting the same by a suitable mechanism to the third carrier for being shifted in a similar way as the second and third digit carriers. In the preferred form of the invention I do not vuse a mechanism comprising interlocking gearsf for driving the fourth digit carrier, but I use mechanism requiring less power and comprising a cam operated by the mechanism of the third digit carrier and adaptedto rock a spring pressed member carrying a pawl engagin in aratchet wheel connected `with the fourt digit carrier.

Another object of the improvements is to provide an improved setting member or wing lever for setting the fare indicator in the desired operative or inoperative positions,and with this object in view I connect the Wing member or handle with its shaft by casting the wing member to the end of the shaft. Thereby a reliable joint between the shaft and the wing member is obtained, and the wing member is strong in construction.

For the purpose of explaining the invention an example embodying the same has been shown in the accompanying drawing in which the same reference charactershave been used in all the views to indicate corresponding parts. In said drawing,

' Fig. 1, is an elevation of the fare indicator with the front plate removed to show the parts of the mechanism to which my invention relates,

Fig. 2, is an elevation showing the end of the 'shaft of the setting member or wing lever andthe win carried thereby, the Wing or handle beings own in broken lines, and

Fig. 3, is a plan view of Fig. 2.

In the example shown in Fig. 1 the fare indicator comprises a driving sha-ft mounted in bearings 1 and 2 and adapted to be operated from a wheel of the carriage or a clock work, as is known in the art. A worm 4 provided on the shaft 3 is in engagement with a worm gear 5 secured to a shaft 6 carv rying'a ratchet wheel 7 The teeth 8 of the ratchet wheel 7 are engaged by an arm 10 of a bell crank lever having a rocking support at 11 and acted upon by a spring 9 tending to hold the same in engagement with the said teeth. The other arm 12 of the said bell crank lever carries a pawl 13 pressed by a spring 14 into engagement with the teeth of a ratchet wheel 15 mounted on a shaft 16 carrying a gear wheel 17. The gear wheel 17 is in mesh with a gear wheel 18 mounted on a shaft 19 and carrying the first digit disk 20.

Further, the shaft 19 carries a disk 21 provided with a tooth 22 adapted for engagementwith pairs of teeth 23 projecting from the circumference of a disk 24. The disk 24 carries ten pairs of teeth 23, and it is secured to the shaft 25 of the second digit disk 26. To the shaft 25 a second disk 27 is secured which carries at its circumference a tooth 28. The latter is adapted for cooperation with pairs of teeth 29 projecting beyond the circumference of a disk 30. The disk 30 is secured to a shaft 31 of the third digit disk 32, the disk 30 likewise carrying ten pairs of teeth 29. Y

To the shaft 31 a cam disk 33 is secured which is engaged by a pin 34 of a lever r364 having a! rocking support at 35. @n a pin-37- of the said lever a pawl 38 and a plate 39 are vrockingly mounted. The pawl 38is yacted* upon by a spring (not shown.) tending to vtends to hold the arm 36 in the position shownin Fig. V1 in which the pin 34 1s j pressed' on the circumferential face ofthe The plate carries. pins 44l and 45, the pn45 having a link 46 jointed thereto. The

saidv link is jointed withits opposite end to an arm 47 of a lever rockingly mounted ona. pivot bolt 48pr0vided on the lever 36. The other arm49 of the saidlever is in position for engagement by a pin '50 secured to an'arm 51 of abell crank lever 51, 53 thearm i 53 of which carries a roller 54 adapted-to be engaged by an varm 57 secured to a setting shaft y carrying' the setting or wing lever 56, aspring 58 tending to hold the bell. crank lever 51, 53 in the position shown inF ig. 1. The lever 47, 49fis acted upon by the spring 43 passedarounda pin 59 secured to the arm 49 and tending to hold the lever 47, 49 in the positionshown in the figure. .A shoulder60 provided on the lever 47, 49 is adaptedfforengagement with a pin 61 secured to the lever 36. On apivot bolt 62a pawl 63 is mounted which is pressed by a spring 64 into engagement with the teeth of the ratchet wheel 40. kFurther the said teeth are engaged by a pin 65 secured to the lever 36 and provided for preventing overthrowi-ng of the ratchet wheel 40.

,In the operation of the apparatus the rotary movement of the vshaft 3 istranSmitted through the parts 4, 5, 7, V8, 10, 12,113 and 15 tov the shaft 16 and from the latter through Vthe gear wheels 17,18 to the shaft 19. The'movement of the shaft `19 .is transmitted `by the tooth 22 andthe pairs of teeth 23 to the shaft 29Y and fromA the Vlatter through( the tooth ,28 ,and the pairs of teeth 29 to the shaft31. Y 'i From the shaft 31 the fourth digit carrier 42 is moved as follows: j As the shaft 31` rotates the pin l34' is pressed outwardly by the cam 33. Thereby lthe lever 36 and the pawl 38 are rocked to the left, and the pawl 38 is .pressed by a spring (not shown) into position at .the rear ofthe next tooth of the ratchet wheel 40. After complete rotation of the cam 33 the pin 34 is released from the cam faceso that it can be returned 'into the position shown in Fig. 1. Therefore, the lever 36 is retracted y by the spring 43 the pawl 38 advancing the ratchet wheel 40, the shaft ,41 and the disk 42 mounted thereon one step.

The first disks 20, 26, and 32 are connected VVin thel usual way by interlocking gears 22,

23, 28, 29, while the third and fourth disks `32 and 42 are connectedby acam disk 33and the parts operated thereby. Y A gear of-.this

type requires comparatively little power.

parts in standard fare indicatorsV provided' with three disks.

Thefthree ` disks 20, 26,32 are provided witliresetting means of ordinary construction `and'I deem it not necessary-to describe thesaid'm'eans, the resetting mechanisms being op'erated'when moving the winglever 56 from'the 270o position into the` Zero position,

so that the arm`57 acts on the roller '54 Yand lifts the arm 53. Thereby `the arm 51 'and thefarm 49 are rocked downwardly.l Thereby the link 46 rocksy the plate 39 about the pin 37 so. that the pin 44 retracts the pawl 38 away from the teeth of the ratchet wheel 40.

Thereafter, the shoulder `60 engages thepin 61 of thearm 36 which is therefore rocked tothe left thus retracting the pin 65 away from the teeth of the ratchet wheel'40. Further, a pin 66'secured to the arm 49 acts on the freeend 0f the pawl 63'and' lifts the same out ofengagement with the` teeth of the ratchet wheel 40. to rotate the disk- 42whichis done bymeans setting-the same.

When'the win lever '50 isinv the vmild-position thel `parts o the mechanism are in the positions shown in Fig.` 1.

Now the shaft 41 A is freeA A ofV a resetting spring (not shown)V for re- As appears from Fi 2 the wing or 'handle 56 is connected with t e shaft 55 by casting. In order toy insure a reliable joint between the shaft 55 and the wing 56 `when casting the parts together, the shaft-55is provided atV onev end with an angular groove 67 and two plane faces v68, 69 preventing displacement of the wing 56 'on the shaft 55 when the jointshould be loosened. I have found that thereby a reliable jointbetween 'the shaft l55 and the'wing 56 is insured. Y f y v .,Preferably, tables 71 carrying the inscription Free are secured to one or both sides yofthe plate 70 of the wing 56, which plates are secured in position by means of thin short tubular rivets 72 of copper passed through .corresponding bores of the tables 71 and the plate 70 and upset at their ends.

To insurev correct position of the tables 74 of the plate 7 0 I prefer to provide the plate 70 with projecting rims 7 3 running all around the tables 71. Thus the tables 71 do not project beyond the margin of the plate 70.

To prevent rattling of the tables when loosened on the rivets a spring 75 is Vdisposed in a hole 74. of the plate 70, which spring acts onk the inner faces of the tables and tends t0 push the same outwardly.

I claim:

l. In a fare indicator, the combination, with a plurality of digit carriers of lower order connected by interlocking gears of a digit carrier of higher order, a cam rotatable with a carrier of lower order, and mechanism operated by said cam for moving the carrier of higher order.

2. In a fare indicator, the combination, with a plurality of digit carriers of lower order connected by interlocking gears, of a digit carrier of higher order, a cam rotatable with a carrier of lower order, and pawl and ratchet mechanism operated by said cam for moving the carrier of higher order.

3. In a fare indicator, the combination, with a plurality of digit carriers of lower order connected by interlocking gears, of a digit carrier of higher order, a cam rotatable with a carrier olfp lower order, a ratchet wheel connected with the digit carrier of higher order, a lever adapted to be operated by said cam and carrying a feed pawl in engagement with said ratchet wheel for advancing the same, means on said lever adapted for engagement with said ratchet wheel for preventing overthrowing thereof, and a stop pawl engaging said ratchet wheel for preventing return movement thereof when retracting said feed awl on the lever away from said ratchet w eel.

In testimony whereof I hereunto affix my signature.

PAUL RIEGGER.

Images