Driver 1 rotates about fixed axis B and carries pin a which consecutively engages straight radial slots b of Geneva wheel 6. Geneva wheel 6 rotates about fixed axis D and its slots b are located symmetrically at angles of 60° between the axes of adjacent slots. Driver 1 has concentric locking surface d which engages the correspondinlg concave locking surface e of Geneva wheel 6 to prevent its unintentional rotation during its idle periods. When driver 1 rotates continuously, Geneva wheel 6 rotates intermittently with six rotation and six idle periods, turning through an angle of 60° to each revolution of driver 1. Gear 5 is rigidly attached to Geneva wheel 6 and meshes with gear 4 which rotates about fixed axis C. Gear 3 is rigidly attached to gear 4 and meshes with gear 2 which rotates about fixed axis A. The transmission ratios from gear 2 to gear 3 and from gear 4 to gear 5 are i₂₃=-1 and i₄₅=-3. To each revolution of driver 1, gear 2 turns through 180°. Rigidly attached to gear 2 is gripping and reversing member 7. During an idle period a workpiece 8 is pushed into member 7 where it is held by spring-loaded plate 10. In the subsequent rotation period, workpiece 8 is carried from the left- to the right-hand position, being reversed in this motion. In the following idle period, a new workpiece 8 is pushed from the left into member 7 where it contacts plunger 9, pushing it to the right so that the plunger pushes the preceding workpiece 8 out of member 7 and onto conveyer f.
$2654$PG,SF$