Welding backup employing a train of knuckle-joint tiles

Details Welding backup employing a train of knuckle-joint tiles Welding backup employing a train of knuckle-joint tiles

1978-05-12

1980-01-15

Nusar, Francis S.

Metal fusion bonding

Seam backup means

52593, 428 53, 428 60, B23K 902

Patent

active

041834542

ABSTRACT:
Welding backup having a train of rigid, heat-resistant tiles, the contiguous ends of which have round surfaces which provide knuckle joints. The round surfaces terminate in matching stops which limit the knuckle motion in either direction to 5-20 degrees.

REFERENCES:
patent: 229766 (1880-07-01), Smith
patent: 722580 (1903-03-01), Hill
patent: 1365162 (1921-01-01), Ferguson
patent: 1705338 (1929-03-01), Playford
patent: 1984393 (1934-12-01), Brown
patent: 2155026 (1939-04-01), Tracy
patent: 3221614 (1965-12-01), Pertien
patent: 3372852 (1968-03-01), Cornell
patent: 3437251 (1969-04-01), Wilkes
patent: 3460736 (1969-08-01), Cadle et al.
patent: 4073318 (1978-02-01), Close et al.

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