GB200724A - Improvements in starting handles for internal-combustion engines - Google Patents

Abstract

200,724. Quesnel, J. N. Aug. 21, 1922. Turning-gear.-In a starting-device which is disengaged automatically if the engine starts backwards, the shaft. A of the starting-handle is coupled to an engine-connected shaft B by a clutch comprising members D, E pinned to the shafts A, B, and having square-cut interengaging dogs with 60‹ play between them. The end of the shaft A enters a recess in the member D containing a spring W tending to hold the clutch members apart. A pair of discs L, M are carried by a collar K movable axially on the member D by means of a red D<1> and an arm C<1> having a slot E<2> engaged by a fixed pin E<1>. The disc M is rotatable in claws L<1> carried by the disc L, Fig. 4, and has a ring of lioles Z engaged in turn by a pair of spring-pressed pawls G<1>, Fig. 13, carried by the disc L. A trigger member N slides vertically in guides on the disc M and is held by a spring X in engagement with a stop P. The under side. of the member N is provided with a heel N<1> and with a ratchet face for engagement respectively with a groove G and ratchet teeth H on a shell F secured to the member E. For starting, the discs L, M are moved forwards into abutment against the wider part of the member D by means of the lever C<1> and rod I)'. The shaft A is pushed in to effect the engagement of the clutch members D, E, and is held by the engagement of the member N with the groove G. On turning the starting-handle, the ratchet teeth H engage the member N and rotate the disc M. If the engine starts backwards, the disc M is held by the pawls G<1>, the member N rides up on the ratchet teeth H, and the clutch is separated by the spring W. If the engine starts normally, the disc M is rotated faster than the member E by means of a spring-pressed trigger S engaging notches H<1> on the disc, Fig. 4, and the member N rides up on the ratchet teeth H as before and releases the clutch.