Apparatus for area measurement of elongated strips

Details Apparatus for area measurement of elongated strips Apparatus for area measurement of elongated strips

1977-08-12

1979-06-05

Martin, Jr., William D.

Geometrical instruments

Area integrators

Electrical

33132R, 331415, G01B 732

Patent

active

041569709

ABSTRACT:
Apparatus for area measurement of elongated strips of different widths is described, which strips may be film to be treated, the strips to be measured being delivered manually or driven between rolls carried on parallel shafts, the number of rolls on one shaft which are actuated being determined by the width of the strips, the actuation rolls having magnets carried therein to activate switches to generate pulses for counting by a counter to give an area indication. The actuation rolls are preferably counterbalanced to reduce undesired movement.

REFERENCES:
patent: 608538 (1898-08-01), Ayer
patent: 674953 (1901-05-01), Beals
patent: 2360594 (1944-10-01), Stout et al.
patent: 3717414 (1973-02-01), Hall et al.
patent: 3732625 (1973-05-01), Vernooy
patent: 4024645 (1977-05-01), Giles

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