Electronic digital scale

Details Electronic digital scale Electronic digital scale

1977-07-27

1979-12-18

Hartary, Joseph W.

Geometrical instruments

Area integrators

Electrical

235 92DN, 250231R, G01B 502

Patent

active

041786912

ABSTRACT:
A measuring instrument comprising an extensible member and a determining apparatus is provided within an electronic digital scale, said extensible member including sprocket holes arranged at a predetermined interval and said determining apparatus measuring the movement of the extensible member through the use of a movement recognition device. The movement recognition device includes a detection plate for rotating in unison with the movement of said extensible member. The rotation of the detection plate is sensed to generate a length information which is introduced into a computation circuit, whereby a measured result is displayed in a digital display arrangement.

REFERENCES:
patent: 2854753 (1958-10-01), Caparros
patent: 3148814 (1964-09-01), Studer
patent: 3566477 (1971-03-01), Williams
patent: 3780440 (1973-12-01), Taylor
patent: 3967271 (1976-06-01), Day
patent: 4031360 (1977-06-01), Soule
patent: 4035922 (1977-07-01), Voros

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