Patent GB-204758-A (GB)
Abstract: 204,758. Huber, H. June 30, 1922. Multiplying and dividing apparatus; differential mechanism. - In a machine wherein the partial products are formed by repeated addition, the setting is effected by means of toothed segments mounted for relative rotation on a driving-shaft which is subsequently rotated to lock the segments and to effect the engagement of the segments sooner or later with the pinions of a totalizing- counter mounted on a rockable frame. The pinions are actuated until the segments have been brought to rest, whereupon the totalizing-counter is thrown out of engagement and into engagement with the transfer actuating-members, the segments being then returned to their initial position. The differential-setting mechanism comprises toothed segments 21, rotatable in slots in bars 20 connected to collars or discs 18, 19 fixed to a main driving- shaft 4, the segments being retained in set position by a spring comb 23 secured to a bridge 22. The discs 18, 19 have pivoted arms 24, 25 connected by a rod 26 normally retained free of the teeth of the segments but adapted to be moved into engagement therewith, to lock the segments to the shaft 4 on the rotation thereof, by means of pins 35, 36 on the arms 24, 25 which come into the path of cam discs 33, 34 fixed to the frame members 30, 31. The shaft 4 is rotated by means of a pinion 17 which engages a sector 16 carried by a double armed lever 13 adapted to be rocked by means of cam discs 8, 9 secured to a sleeve 5 loose on the shaft 4 and rotatable by means of an operating crank 6. The totalizing- counter mechanism comprises pinions 43 and numeral wheels 42 mounted on a spindle 41 secured in double armed levers 39, 40 fixed on a shaft 38 which is supported in the side plates 1, 2. The shaft 38 is provided with a double armed lever which engages a cam disc 10 on the sleeve 5 for the purpose of moving the pinions 43 into engagement with the differential-actuating segments 21. The cam disc 8, which through the lever 13, &c., effects the rotation of the shaft 4, has part of its circumference circular so that the toothed segments 21 remain in their actuated position until the totalizing-counter is returned to its initial position, thus preventing overthrow. Transfer mechanism.-Each of the pinions 43 has a pin 49 which at the instant of transfer is adapted to rock a corresponding lever 47 mounted on the shaft 38 that co-operates with a lateral projection on a corresponding pawl 48 also pivoted on said shaft so that the said pawl is swung free of the end 55<1> of a toothed segment 55 of the next higher denomination. The segments 55, which are pivoted on a shaft 54, are not permitted to rock to advance the appropriate pinion 43 one step until a yoke 58 is released by a slotted rod 60, Fig. 5, on the return of the differential-actuating mechanism. To permit of consequent transfer a retaining spring comb 46 on a shaft 45 carried by the levers 39, 40 is swung out of reach of the levers by means of an arm 52 having a roller 53 engaging a cam 11 on the sleeve 5. The pins 49 can then rock the levers to disengage the pawls 48 from the toothed segments 55. The levers 47 are restored to initial position on the subsequent operation of the main crank 6 by means of a yoke 62 mounted on a shaft 61 having an arm 67 which is rocked by means of a double armed lever 65 pivoted on the lever 63 and bearing at its upper end on the cam disc 10.