weaving machine 2 and the dobby 5 operating at slow speed or to stop it so long as the switch lever 27 is maintained in the center position fig5 and 6 illustrate an alternative pick finding mechanism embodying the present invention in which two pivotally supported switch levers 27 and 32 are provided each of which can be switched between only two positions the lever 32 is also supported on a stationary axis with this the uncertainty which exists through the possibility of switching between three positions as in fig4 is avoided the pick finder of fig5 and 6 differs from the already described pick finder in that a gear 210 is axially slidably supported on a cylindrical surface 181 of the sliding sleeve 180 during axial movement of the gear 210 by means of the switch lever 27 which engages the groove 250 the multi tooth coupling 30 and 31 becomes engaged the sliding sleeve 180 remains in its normal position and is moved only when the second switch lever 32 which engages the groove 35 of the sliding sleeve 180 is operated the switch lever 32 which is under the action of a return spring 36 is also fork.