Portable seam locking device

Details Portable seam locking device Portable seam locking device

1975-03-28

1976-10-26

Larson, Lowell A.

2924358, 113 57, B21D 3902

Patent

active

039877400

ABSTRACT:
A portable seam locking device which is mountable on a portable hand tool. The device provides a support anvil for supporting the flanges which are to be folded and a hammer for bending one flange with respect to the other to perform the required fold over seam joint between two metal flanges. The hammer is mounted in the housing of the device for oscillating movement with respect to the anvil. The head of the anvil is formed with a small ridge on its inner surface which serves to form a series of crimps in the joint which prevent longitudinal slipping between the components of the joint.

REFERENCES:
patent: 1898069 (1933-02-01), Tschudi
patent: 2131821 (1938-10-01), Schlicht
patent: 2143339 (1939-01-01), Wiese
patent: 2252017 (1941-08-01), McCrery
patent: 2810420 (1957-10-01), Gibson
patent: 3213817 (1965-10-01), Hunziker
patent: 3421356 (1969-01-01), Buske
patent: 3602032 (1971-08-01), Skintzis
patent: 3777687 (1973-12-01), Colman
patent: 3808869 (1974-05-01), Raymond

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