Boots – shoes – and leggings
Patent
1979-12-18
1986-01-07
Ruggiero, Joseph
Boots, shoes, and leggings
21912434, 228 9, G06F 1546, B23K 912
Patent
active
045637458
ABSTRACT:
A process and an apparatus for continuously welding large high gauge sheets, according to which the position of a torch is defined by a feeler bearing on the root and on a wall of a chamfer. After carrying out a first weld line a switch means signals the end of the first line and moves the feeler to the other side of the chamfer while still dragging along the welding torch, and during its movement measuring the chamfer width at that particular level of the joint. The feeler and torch remain in the same plane parallel to the chamfer axis and contains both of them. The sensed width is then compared with stored widths, thus deciding how many weld lines have to be deposited in that layer, at the same time carrying out the second weld line with the feeler and torch adjacent the other side of the chamfer, and still arranged in a plane parallel to the above mentioned plane. The feeler is then controlled to move transversely of the joint through the same distance as the width of the weld line which shall be made in that area, this displacement caused by copying an identical movement which is an inverted reflected movement on the torch, the latter being positioned at the same distance from the feeler as the width of a weld line. A third weld line is then carried out adjacent the second one and so on for the number of lines as predetermined in advance, whereupon the feeler and torch move back to the starting chamfer wall to initiate a new weld layer.
REFERENCES:
patent: 4019016 (1977-04-01), Friedman et al.
patent: 4095077 (1978-06-01), Schneider et al.
patent: 4121746 (1978-10-01), Frohlich et al.
patent: 4242620 (1980-12-01), Fujiwara et al.
patent: 4286138 (1981-08-01), Slavens et al.
patent: 4328050 (1982-05-01), Ashizawa et al.
Ansaldo S.p.A.
Ruggiero Joseph
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