1. AN ENDLESS CONVEYOR FOR MANUFACTURING SHOES OR THEIR PARTS COMPRISING, IN COMBINATION: (A) A STATIONARY FRAME ELONGATED IN A HORIZONTAL DIRECTION; (B) A PLURALITY OF UPRIGHT TUBULAR MEMBERS SUPPORTED BY AID FRAME; (C) AN ENDLESS CHAIN MOVABLY SUPPORTED ON SAID FRAME (D) DRIVING MEANS AND RETURN MEANS RESPECTIVELY ARRANGED AT THE ENDS OF SAID FRAME FOR ACTUATING MOVEMENT OF SAID CHAIN; (E) SUPPORTING AND GUIDING MEANS ON AN UPPER PART OF SAID FRAME, SAID SUPPORTING AND GUIDING MEANS CONSTITUTING TWO SUBSTANTIALLY PARALLEL VERTICALLY SPACED TRACKS ON ONE SIDE OF SAID TUBULAR MEMBERS; (F) A PLURALITY OF TRUCKS CONNECTED BY SAID CHAIN, SAID TRUCKS HAVING RESPECTIVE UPPER SUSPENSION WHEELS MOV-