METHOD OF ROLLING THREADS

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Dec. 5, 1944. J. H. HOERN 2,364,442. METHOD OF ROLLING THREADS . Dec. 5, 1944. J. ?. ???RN 2,364442. METHOD OF ROLLING THREADS x Filed June 4, 1943. 2 Sheets-Sheet 2. ATTORNEYs. Patented Dec. 5, 1944 2,364,442. UNITED STATES PATENT OFFICE METHOD OF ROLLING HREADS. Joseph H. Hoern, Birmingham, Mich, assignor to Eaton Manufacturing Company, Cleveland, Ohio, a corporation of Ohio Application June 4, 1943, Serial No. 489,639. 13 Claimis. (C. 80-6). This invention relates to the ROLLING of screw dies is effected while the dies are so laterally Sep THREADS on machine parts such as bolts, screws arated from one another, and then the dies are and the like by means of flat dies and has for its caused to laterally approach each other to con principal obect the provision of a METHOD of roll plete the imbedding thereof in the work; th

external diameter of the work blank, initiation of the rolling movement of the work between the 5 O 5 dies is effected while the dies are so laterally Sep ... In the conventional method of rolling threads on workpieces between flat dies, the , dies are lo cated laterally with respect to each other at such

  Methods, Thread, Rolling, External, Method of rolling threads