Weighing scales – Self-positioning – Spring
Patent
1982-12-27
1985-02-05
Goldberg, E. A.
Weighing scales
Self-positioning
Spring
177154, 177188, 177210FP, G01G 308, G01G 2302
Patent
active
044973861
ABSTRACT:
Weighing apparatus of the short-stroke type is disclosed including a resilient parallel guidance arrangement (3) connecting a load-receiving member (2) for vertical movement relative to a console member (1), characterized by the provision of a pivotally movable lever (14) connected between the console and load-receiving members and including a resilient arm (18) for transmitting to the measuring device--for example, a vibratory string (23)--a force corresponding with the load applied to the load-receiving member. A stop device (20) is provided for limiting the extent of pivotal movement of the lever, the force introduced into the parallel guidance arrangement being only a fraction of the load to be measured, whereby the deleterious influences disturbing the measurement force are eliminated, whereby a relatively simple and inexpensive parallel guidance arrangement of less expensive materials may be achieved.
REFERENCES:
patent: 3027955 (1962-04-01), McCown
patent: 3897681 (1975-08-01), Meier
patent: 4022288 (1977-05-01), Canevari
patent: 4300648 (1981-11-01), Gallo et al.
patent: 4317495 (1982-03-01), Kuhnle et al.
patent: 4433742 (1984-02-01), Lee
Goldberg E. A.
Kampe Fred L.
Mettler Instrumente AG
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