Patent GB-690801-A (GB)
Title: Improvements in or relating to mechanical integrating mechanisms
IPC: G01R11/56
Filed: 1948-02-02
Abstract: 690,801. Counting-apparatus. GOLDS, L. B. S., and EASTERN ELECTRICITY BOARD. Feb. 2, 1949 [Feb. 2, 1948], No. 3056/48. Class 106 (i). A mechanically-driven counter for indicating a total number of events occurring over a period of time and operated by a driving element responsive to the events is combined with means for indicating how many of the events registered lie within predetermined limits of intensity or rate of occurrence of the events and comprises a counter and means sensitive to the speed of the driving element for operatively connecting the counter thereto when its speed reaches a value corresponding to one of the limits and means for neutralizing the drive to the counter from the driving element when the speed reaches the other limit. An electricity K.W.H. meter drives a shaft 2 to actuate a counter 11 to register total consumption and through gears 3 to 6 drives shafts 7 to 10 and with them sunwheel 12 of differential gear 17x. So long as the rate of consumption is below 25 per cent full load, sun-wheel 16 of D<SP>1</SP> is held by a stop 51a engaging gear 51 and planet-wheel carrier d<SP>1</SP> drives a counter 15 to register consumption in this range. Meanwhile a constant-speed shaft 40 drives sun-wheels 31, 32, 33 of differential gear " relays " D<SP>2</SP>, D<SP>3</SP>, D<SP>4</SP> at speeds corresponding to rates of consumption of 25, 50 and 75 per cent full load, respectively, and so long as the potential speed of a sun-wheel 28 to 30 is less than the respective speed of a sun-wheel 31 to 33 the corresponding planet-wheel carrier d<SP>2</SP>, d<SP>3</SP>, d<SP>4</SP> is biased toward a limiting position and slipping occurs at the corresponding one-way clutch 22, 23, 24. When the rate of consumption is in the range 25 to 50 per cent full load, the sun-wheel 28 overtakes the sun-wheel 31 and biases the planet-carrier d<SP>2</SP> toward an opposite limiting position, slipping now occurring at one-way clutch 34, and a lever 42 moves a shaft 45 to engage gears 19, 51 and so enable shaft 8 to drive sun-wheel 16 of differential D<SP>1</SP> equally and oppositely to sun-wheel 12 and so cut out counter 15, and to drive sun-wheel 63 while sun-wheel 76 is held so that the planetcarrier d<SP>5</SP> drives a counter 67 to register consumption in this range. Similarly in the higher ranges, a new counter comes into action while the lower ones are cut out. A permanent record may be made on a time-driven strip by pens 96, 97, 98 actuated by the levers 42, 43, 44. The time during which consumption falls within the ranges 0 to 25 per cent, 25 to 50 per cent, 50 to 75 per cent of full load is registered on dials or counters 15a, 67a, 68a driven by sun-wheels 78, 87, 92 and planet-carriers d<SP>7</SP>, d<SP>8</SP>, d<SP>9</SP>, until the sequential movements of levere, 42,., 43, 44 engage clutches 84, 91, 94 to drive sunwheels 81, 88, 93 equally and oppositely to sunwheels 78, 87, 92 and so successively cut out the counters 15a, 67a, 68a; thereafter a counter 69a registering the time consumption falls between 75 and 100 per cent of full load is driven through the shaft 79 from the shaft 40. Instead of displacing spindles 45, 46, 47 the planet-carriers of differentials D<SP>2</SP>, D<SP>3</SP>, D<SP>4</SP> may be arranged to operate dog clutches or to close contacts in electromagnetic relays controlling clutching devices. In lieu of one-way clutches 22, 23, 24 and 34, 35, 36 the planet carriers d2, d<SP>3</SP>, d<SP>4</SP> may be frictionally engaged with respect to levers 42, 43, 44 and to those operating clutches 84, 91, 94. Specification 690,830 is referred to.