Patent GB-1017512-A (GB)
Title: Improvements in or relating to a rotational speed variator for use in a liquid dispensing installation
IPC: F16K31/48
Filed: 1962-07-03
Abstract: 1,017,512. Dispensing liquids. TOKHEIM CORPORATION. July 3, 1962 [July 3, 1961], No. 38272/65. Divided out of 1,017,511. Heading A4T. [Also in Division F2] A rotational speed variation for a counting register of a dispenser for variable mixtures of liquids comprises two bearing plates 201, 203, Fig. 1, supporting an input shaft 91 and gear 207 and ten spindles 0-9, Fig. 4 (spindle 6 only shown Fig. 1) set equi-angularly and concentric with shaft 91 and each carrying three differentials 253, 255, 257 for varying the speed of output shaft 137 respectively by tenths, units and tens of the input shaft speed in revolutions gallon. If the input shaft speed is 10, reduction gearing from gear 207 to respective spindle gears 231 gives speeds of 9 for spindle 9, 8 from spindle 8, and so on, with 0 for spindle 0 which is fixed and outside the gears. Around each set of ten differentials 253, 255, 257, Fig. 1 and 4 is a ring gear 299, 301, 303, each having external teeth engaging setting gears 319, 325, 331 on a spindle 317, an internal flange 314, Fig. 1, supported in rollers 309 and a single radial inward lug 305, Fig. 4, able to engage and lock any one of the respective ten star wheel carriers 259, Fig. 1 and 4, of the differential sets 253, 255, 257 whereby the differential with locked carrier is rendered active to transmit motion. The ring gears are successively interconnected respectively via gear segments 315, 315<SP>1</SP> on rings 299, 301 engaging gears 323 329 integral with setting gears 325, 331 for rings 301, 303, as a segment passes spindles 0 to 9, so that ten revolutions of the "tenths" ring rotates the "unit" ring once and ten revolutions of the "unit" ring rotates the "ten" ring once, the setting spindle 337 being driven by hand or motor. Suppose 7 gallons of fuel are delivered at 32.6 price units/gallon. Setting spindle 337 is rotated 32.9 times whereby the lug 305 on ring 303 locks carrier 259 to activate the "tens" differential on spindle 3, the lug on the ring 301 locks the units differential on spindle 2 and the lug on ring 299 activates the "tenths" differential on spindle 6. Then one rev of spinde 91, Fig. 1, for say one gallon, rotates sun gear 261 of differential 253 via integral planet gears 263, 263<SP>1</SP>, integral differential output gears 267, 269, integral gears 275, 277 loose on spindle 91, differential 279 loose or spindle 91 and comprising integral planet gears 281, 287 carried by carrier 285 engaging integral sun gears 289, 291 which feed into a similar differential 293 leading to output shaft 137 which thus rotates .9 times corresponding to .9 price units. The input via the "units" differential 255 on spindle 2 has an output via gears 271, 285 and differentials 279 and 293 which rotates shaft 137 twice while the input via the "ten" differential 257 on spindle 3 has an output via gears 273, 295 and differential 293 which rotates shaft 137 thirty times. Thus shaft 137 rotates 32.9 times corresponding to 32.9 price units for the gallon dispensed