Method for manufacturing a suspension device out of merchant rou

Details Method for manufacturing a suspension device out of merchant rou Method for manufacturing a suspension device out of merchant rou

1975-03-26

1976-10-05

Larson, Lowell A.

Metal deforming

Process

With attenuation, thickening, elongating or shortening of...

29 7, 61 45B, B21K 144

Patent

active

039837378

ABSTRACT:
Method of manufacturing a suspension bolt, the bent part of which has a bending strength corresponding to the tensile strength of the shank of the bolt, using commercial round iron and making the bolt from one single round work piece. In a first step the round work piece is cold bent to form an end for the hook part in the shape of a closed, oval ring, the largest part of which extends laterally to the longitudinal direction of the shank. In a second step the material of said ring is pressed or rolled, also by cold working, perpendicularly to the plane of the ring and up to the straight part of the shank, so that the section of the work piece in the pressed part becomes almost rectangular. In a third step the end of the ring is skewed laterally perpendicularly to the plane of the ring, so as to form an opening sufficient for engaging the line, the chain or any other attachment means intended to carry the loading.

REFERENCES:
patent: 498890 (1893-06-01), Taylor
patent: 589023 (1897-08-01), Parker
patent: 1120411 (1914-12-01), Rohmer
patent: 1298051 (1919-03-01), Keator
patent: 1313807 (1919-08-01), Frazier
patent: 2268772 (1942-01-01), Peterson
patent: 2862368 (1958-12-01), Dempsey
patent: 3042354 (1962-07-01), Goodwin
patent: 3651651 (1972-03-01), Triplett

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