Improvements relating to Worm and similar Gearing.
Реферат: 28,532. Graul, E. Feb. 4, 1907. Adjustments. -Relates to a checking-device for determining a definite mid-position of a wheel which may carry, for instance, an optical instrument. As applied to worm gearing, a spring- pressed pin f, Fig. 1, is moved longitudinally by a half-nut d engaging the worm a<o>. The conical tip of the pin f describes a helical line on the worm shaft until, when the wheel sector b is in the required position, it engages a corresponding hole a' in the shaft. In another arrangement, a spring-pressed pin k, Fig. 3, is mounted to engage a hole i<1> in the worm shaft i. An arm k<1> attached to the pin k rests on an annular surface h<o> on the worm-wheel h, thus holding the pin out of action until the arm k<1> falls into a notch made in the surface h at the required point.
Improvements in or relating to measuring machines for tiles and similar earthenware articles
Номер патента: GB351791A. Автор: . Владелец: HARRY HILL HALL. Дата публикации: 1931-07-02.