Wide gear 3 and distributor roller 7 are keyed to shaft 8 and rotate about fixed axis A-A. Gear 3 meshes with gear 5 and roller 7 contacts roller 6 which are rigidly attached together with slanted washer 1 to shaft 4 which rotates about and reciprocates along axis B-B in fixed guide C. Washer 1 engages roller 2 of shaft 8. When shaft 8 rotates, roller 6 rotates about and reciprocates along axis B-B.
$3340$GrC,FD$