Article weight grading apparatus

Details Article weight grading apparatus Article weight grading apparatus

1975-10-06

1976-09-14

Hartary, Joseph W.

Weighing scales

With alarm or signal

In balance

177229, 177DIG5, 177DIG6, 209121, G01G 308, B07C 518, A01K 4308

Patent

active

039801470

ABSTRACT:
Weighing apparatus for grading articles such as eggs and the like according to their weight. The apparatus comprises a tray, and a pair of leaf springs for mounting the tray for up and down movement and operatively connected to the tray and a support member, and being deflectable generally downwardly relative to the support member a first distance responsive to article weight. A stop is provided for allowing downward deflection of the tray relative to the support only to a second distance, which is normally less than the first distance. An out-of-round cam or the like changes the relative position of the stop and the support member so that the second distance approaches the first distance, and electrical contacts, photoelectric apparatus, or the like, are provided to sense when the second distance is substantially equal to the first distance.

REFERENCES:
patent: 2080446 (1937-05-01), Templeman
patent: 2694566 (1954-11-01), Wolter
patent: 3068948 (1962-12-01), Mulvany et al.
patent: 3266586 (1966-08-01), Reading et al.
patent: 3390733 (1968-07-01), Takahashi

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