Patent GB-615691-A (GB)
Title: Maximum-demand apparatus for periodic recording
IPC: G01R11/60
Filed: 1946-08-06
Abstract: 615,691. Recording-apparatus; counting- apparatus. LANDIS & GYR SOC. ANON. Aug. 6, 1946, No. 23320. Convention date, Aug. 22, 1945. [Classes 106 (i) and 106 (iv)] Maximum-demand metering apparatus for periodic recording with only one recording mechanism is characterised in that between the counter and the recording mechanism two accumulator devices are arranged which are connected by that part of the apparatus which determines the periodicity, and in consonance with the periodicity, alternately with the counter and with a source of power which actuates the recording mechanism, in such a manner that, in the individual periods, the consumption is transmitted from the counter to one accumulator device and the recording mechanism is set in accordance with the consumption data transmitted to the other accumulator device in the preceding period. As shown in the Figure in the period shown, the counter 2 is driving an accumulator device comprising shaft 19, wheels 21, 22, pinion 23 and wheel 24 in such a direction that the stops 25 are moving away from one another. At the end of the period a shaft 14 is rocked in the direction of the arrow and the paper strip 1 is stepped on in a known manner. This movement of the shaft 14 causes a detent 44 on a shaft 45 to free a release lever 37 on a shaft 40 which lever under the action of one or other of the springs 38, 39 co-operating with an eccentric 41 rocks a lever 36 which rocks two levers 35 so that the wheel 27 now engages the wheel 22 of a second accumulator device and a wheel 29 is moved from engagement with the wheel 21 into engagement with the wheel 21. A lever 57 due to the movement of the shaft 45 drops from a first step 58 to a second step 59 of a double pawl 52, 53 on the shaft 45. The detent 44 locks the lever 37 in its new position and upon the return rocking movement of the shaft 14 the lever 57 moves from the second step 59 to the third step 60 and causes through a pin 64 the brake and switch lever 62 to rock against a spring 61 to release a drum 51 and close a switch 49 in which position the lever 62 is locked by a detent 67. The motor 48 then turns a control shaft 43 which through a gapped wheel 70, a friction clutch 73, shaft 74 rotates a units and tens type drum 75 which is connected to a hundreds type drum 78a by a tens transfer. The drive to the shaft 74 is transmitted via a shaft 30, the wheel 29 to the wheel 21 and continues until the members 25 abut once more at which time the drums 75, 78a are set to the value accumulated in the accumulator 19, 21, 22, 23, 24 and 25 in the previous period. The rotation of the shaft 74 is also transmitted via gearing 93, and endless belt 94 to a pen 95 slidable along a rod 89 which also carries an inking roller 84 which has a pinion 85 which co-operates with a toothed pivoted lever 88. The pinion 85 is guided for horizontal movement by a member 87 reciprocated by the motor 48 through a crank 86. When the shaft 43 has almost completed a rotation the gap in the wheel 70 comes opposite the clutch 73 and a cam 71 on the shaft 43 allows a vertical lever 82 to drop, whereupon a pawl 79 locks the drum 75 and the pen 95 contacts the strip 1. The roller 84 then causes printing of the numerical value from the drums 75, 78a and the pen 95 makes a line on the strip by being set back to zero by a toothed sector lever 96 which is operated through a cam 72 on the shaft 43. The cam 71 raises the lever 82 to lift the roller 84 and the pen 95 from the strip 1 while the cam 72 returns the lever 96 to its initial position and the drums 75 and 78a are zeroised by a spring 77. A pin 68 on a disc 69 resets the lever 57 to its initial position against the step 58 and rocks the detent 67 to cause the brake and switch lever 62 to stop the motor 48 by again engaging the drum 51 and to open the switch 49.