Apparatus for working on sheet material and having magnetic hold

Details Apparatus for working on sheet material and having magnetic hold Apparatus for working on sheet material and having magnetic hold

1981-03-09

1982-12-07

Meister, James M.

Cutting

With work immobilizer

Means to clamp work

83452, 83925CC, 269 8, D06H 700

Patent

active

043620779

ABSTRACT:
Sheet material spread on a cutting table is clamped to the surface of the table by parallel flexible bands of ferromagnetic material attracted to the table by magnets associated with the table. The bands are threaded under and over rollers journalled on a tool carriage which moves a cutter wheel in cutting engagement with the sheet material in response to command signals received from a programmable computer. The rollers pick up portions of the bands ahead of the carriage assembly and lay down portions of the bands behind it as the carriage assembly advances longitudinally of the table.

REFERENCES:
patent: 3387841 (1968-06-01), Menell et al.
patent: 3712166 (1973-01-01), Rossetti
patent: 3776072 (1973-12-01), Gerber et al.
patent: 3790154 (1974-02-01), Gerber et al.
patent: 3837084 (1974-09-01), Johnson

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