Load weighing and accumulating system and method for hydraulic l

Details Load weighing and accumulating system and method for hydraulic l Load weighing and accumulating system and method for hydraulic l

1978-09-22

1980-10-28

Miller, Jr., George H.

Weighing scales

Structural installation

Vehicle

177146, 177210FP, G01G 1910, G01G 314

Patent

active

042301963

ABSTRACT:
A loader includes a lift arm assembly, raised by hydraulic lift cylinders and carrying a load bucket. Alignment members mounted respectively on the loader frame and lift arm assembly, and visible to the loader operator, identify the weigh position of the lift arm assembly. A pressure to voltage transducer is mounted on one lift cylinder, and is connected in a bridge circuit producing a DC voltage output. The bridge circuit output signal, proportional to the bucket load, is fed to an amplifier, whose output is passed to an analog-to-frequency converter producing pulses at a frequency proportional to the bucket load. An electronic clock allows the converter output pulses to pass through an AND gate to a bucket counter which displays the bucket load, and is automatically reset to zero. The converter pulses are passed to an accumulator counter through a second AND gate. The accumulator counter accumulates the weight of several bucket loads which are loaded onto a transport vehicle; and is reset manually after the vehicle is loaded.

REFERENCES:
patent: 2635868 (1953-04-01), Raid et al.
patent: 2742162 (1956-04-01), Mandt
patent: 2851171 (1958-09-01), Martin et al.
patent: 3061117 (1962-10-01), Kruse
patent: 3078937 (1963-02-01), Mehki et al.
patent: 3291234 (1966-12-01), Woodburn
patent: 3306383 (1967-02-01), Saxton et al.
patent: 4015677 (1977-04-01), Silva et al.
patent: 4055255 (1977-10-01), Vasquez
patent: 4062415 (1977-12-01), Miller

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