WOODEN SPOOL HELD TOGETHER WITH NOVEL TIE ROD ASSEMBLY AND METHOD OF ASSEMBLING THE SAME BETWEEN A PAIR OF DIES

摘要

A wooden spool held together with a novel tie rod assembly and a method of assembling the spool between a pair of dies. The novel tie rod assembly includes elongate tie rods having a bent end or otherwise deformed first end and a plurality of grooveless retaining rings. The tie rods are inserted through the end flange s and the transverse barrel of the of the spool. The retaining rings are pressed axial ly on the smooth second ends of the tie rods which project axially from one of the flanges. The spool can be assembled between a pair of dies. The base die includes locatin g recesses to receive the bent ends of the tie rods and the top die includes engaging pins for pressing the retaining rings on the opposite ends of the spool.