GB190704828A - Improvements in Prepayment Electric Meters. - Google Patents

Abstract

4828. Berland, L. A. July 10, 1906, [date applied for under Patents Act, 1901]. Electricity, supplying.-At the conclusion of the supply, the meter closes the circuit of an electromagnet N through contacts X, Y, which opens the consumer's circuit. After prepayment, the spindle A is rotated whereupon the contact X, which is carried by the planet-wheel S of an epicyclic train, is set back a predetermined distance from the contact Y through gearing B, d, c, e, a. The spindle S is then turned to the left, the projection I throwing over the contact-lever L to close the contacts p, q, in which position the lever L is retained by the engagement of the catch H with the latch O, and then to the right, bringing the contacts E', E<2> into engagement with the blocks F', F<2>, respectively, and closing the consumer's circuit. The meter rotates the wheel b, returning the contact X to close the circuit of the electromagnet and withdraw the catch H, allowing a spring to return the lever L and open the main circuit. In the arrangement shown in Fig. 8, the epicyclic arrangement is dispensed with, and the contact-arms X<1>, Y<1> are mounted on the spindle T' and sleeve T<1>, respectively, the former spindle being set forward by prepayment, and the latter geared to the meter mechanism, gradually overtaking it. In an alternative arrangement, the spindle S is dispensed with, the contacts E<1>, E<2> being mounted on the spindle A. Coin action.-During the rotation of the drum A, the projecting coin first lifts the spring f <1> and then drives the wheel B.