Weighing scales – Self-positioning – Fluid transmission to pressure gauge
Patent
1982-11-02
1984-11-06
Miller, Jr., George H.
Weighing scales
Self-positioning
Fluid transmission to pressure gauge
177DIG9, 7386238, G01G 500, G01G 504, G01G 2100
Patent
active
044807074
ABSTRACT:
A weighing apparatus for measuring large loads such as heavy weights including a weighing cell against which the load is applied having an upper stationary member and a lower stationary base member with a rotatable nut therebetween and the stationary member parts separated from the nut by a plurality of antifriction bearings in the form of a hydrostatic parting liquid chambers supplied by a pressure pump, helical work surfaces between the nut and base member, a spindle extending between the nut and stationary members wth hydrostatic liquid pockets also pressurized and a torque arm connected to the nut with a force measuring member connected to the torque arm.
REFERENCES:
patent: 3773123 (1973-11-01), Lopez
patent: 3993149 (1976-11-01), Harvey
Foster Patrick W.
Miller Jr. George H.
Pfister GmbH
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