When table 1 is traversed to the left, bellcrank 2, running against stop 3, turns through the required angle α about axis A. Then table 1 stops. Motion is transmitted to tie-rod 4 which, moving downward, turns two-arm lever 5 about fixed axis B, overcoming the resistance of spring 6. At this, pawl 7, pivoted on lever 5, turns ratchet wheel 8 through one tooth. Wheel 8 turns together with shaft A on which indexing plate 9 is keyed and which carries workpiece 10 to be laid out. When workpiece 10 has been indexed through the required angle, table 1 is traversed in the reverse direction. Locking member 11 holds workpiece 10 in the indexed position.
$1849$LR,FD$