Metal deforming – By relatively movable offset tool-faces – Multi-point tool-couple
Patent
1978-06-23
1981-06-30
Gilden, Leon
Metal deforming
By relatively movable offset tool-faces
Multi-point tool-couple
72307, 72379, 72421, B21D 1302
Patent
active
042755816
ABSTRACT:
An apparatus (40) and method for increasing the fin density of a serpentine sheet (10) having a plurality of fins (14a, 14b, 14c), each fin having two sides (16, 18) coupled together at one end (20) with a space (22) between the sides. Blocks (30, 32) having receptacles (30a, 32a) for receiving the ends (20, 24) of one side (16) of a fin (14a) and being near opposite surfaces (A, B) of the sheet (10) are moved vertically into contact with such ends. Simultaneously, blades (34, 36), being near the opposite surfaces (A, B) of the sheet (10) are moved vertically into position at the other side (18) of the fin (14a). Then, the blades (34, 36) are moved horizontally towards the blocks (30, 32), which are now held stationary, to compress the fin (14a) a predetermined amount by moving the other fin side towards the one fin side. The blocks and blades are then withdrawn from the sheet to move another fin (14b) into position for another compressing operation. The apparatus (40) includes a mechanism (70) to prevent the sheet from fishtailing when a fin is being compressed.
REFERENCES:
patent: 3461711 (1969-08-01), Ogilvie
patent: 3628369 (1971-12-01), Williamson
patent: 3670781 (1972-06-01), Liouville
Caterpillar Tractor Co.
Gilden Leon
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