Member 1, rotating freely about fixed axis A of shaft 2, is rigidly secured to internal latchet wheel a. Rigidly mounted on shaft 2 is member 3 having angular recesses in which triangular members b slide. Upon clockwise rotation of member 1, members b are wedged between the teeth of ratchet wheel a and the angular recesses of member 3. At this member 3 rotates together with member 1.
$455$SL,C$