Method and apparatus for making filter electrodes

Details Method and apparatus for making filter electrodes Method and apparatus for making filter electrodes

1975-02-05

1976-02-10

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29203D, 72324, 72338, 72367, 113 1M, H01R 4300

Patent

active

039369323

ABSTRACT:
A pair of .omega.-section metallic channels are juxtaposed to form a hollow core with their flat flanges coextensively contacting one another. This core is advanced in steps having a length equal to an even multiple of the predetermined distance toward a work station. Strips are pulled off a pair of supplies at this station and the ends of these strips are advanced toward locations on the core which are spaced apart by the predetermined distance. These strips are advanced by an increment on each step advance of the core. The ends of the strips are spot welded to the flanges on the respective side of the core and the end sections are cut between incremental advances of the strips and step advances of the core to leave a pair of strip arms welded to the core and spaced longitudinally apart by the predetermined distance. The free end of each arm is formed with a split and these split ends are bent in opposite directions to opposite sides of the split. The operations of cutting off the end section and splitting the ends can be carried out simultaneously by a single stamping arrangement. The core is held between upper and lower rollers as it is advanced straightly longitudinally toward the station where the arms are applied thereto.

REFERENCES:
patent: 3220107 (1965-11-01), Clark
patent: 3886651 (1975-06-01), Vernik et al.

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