| 摘要 |
1,129,274. Mechanical interrupters. J. A. KORBER. 21 Jan., 1966 [1 Feb., 1965], No. 2880/66. Heading H1N. An endless resilient element 1 having a helicoidal peripheral ridge threadedly guided in a toroidal aperture in housing 3 by means of fixed projections (11, Fig. 2, not shown) is driven by a gearwheel 9 engaging teeth 10 to revolve about its own axis and thus to advance longitudinally, whereupon projecting pins or the like carried on the sides of the ridge or an a separate spiral (as shown) actuate a plurality of micro-switches by means of feelers situated at positions such as 18. In a modification (Fig. 3, not shown) the toothed ridge is threadedly guided by a spiral recess within the toroidal aperture, and two spirals carrying projecting pins are provided between turns of the toothed ridge. |
