GB448738A - Improvements in and relating to prepayment mechanisms, for electricity and other meters - Google Patents

Abstract

448,738. Prepayment mechanism for meters. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. May 20, 1935, No. 14735. Convention date, March 23. [Class 27] Coin action, mechanical - connection with delivery proportionate to value of coin; coin - discharging mechanism.-In meter prepayment mechanism giving delivery proportionate to the value of any one of a number (two in the example shown) of coins inserted into a rotary coin pocket 5, the coin engages, according to its size, one or more of a series of driving elements (e.g. the pins 10 and 13), arranged in the same angular position, and adapted to be rotated the same amount but connected by gearing of different ratios appropriate to the different coins with the quantity mechanism 26. The coin pocket 5 is rotated from an external handle 1 by engagement of a crank pin 4 with the inserted coin, and is secured to a central shaft 6 carrying a switch-actuating member 7. The driving pin 10 is carried on a disc connected by a sleeve 9 with a gear-wheel 11, whilst the driving pin 13 is similarly connected with a gear-wheel 14, the gear-wheels 11 and 14 being connected respectively with sun-wheels 20 and 19 of a differential gear. When the smaller and higher value coin is used, the sun-wheel 20 only is operated, but with the larger coin, both sunwheels are operated and rotate in opposite directions, the gear ratios being such that the planet element 22, which is connected with the quantity mechanism 26, is set forward, in each case, by an amount appropriate to the coin. Spring - actuated elements 16 engaging diametrically opposed pins on the gear-wheels 11 and 14, and on the switch actuating member 7, ensure movement of these members through 180‹ at each actuation of the apparatus and cause the coin to be disengaged from between the pins 4, 10, and 13, and discharged, towards the end of the setting action. When the larger coin has the larger value, the gear-wheels 11 and 14 are arranged to drive the sun-wheels 19 and 20 in the same direction. Registering.-A register 24 of the cash inserted is operated from the planet element 22 of the differential gear 19, 20.