Measuring and testing – Volumetric content measuring
Patent
1975-08-11
1977-07-26
Myracle, Jerry W.
Measuring and testing
Volumetric content measuring
G01L 122
Patent
active
040374696
ABSTRACT:
A load weighing device is provided to determine the magnitude of a load carried by a material handling device such as a lifting crane, hook block arrangement, or the like. The weighing device is designed to be incorporated into existing material handling apparatus and to accurately measure the magnitude of any load being handled by the apparatus while minimizing the likelihood of extraneous forces from introducing erroneous measurements (unrelated to the load) into the weighing system. In a first embodiment of the invention, the material handling apparatus includes a first structure for carrying a load, a second structure from which said first structure is suspended, with one of the structures including an elongated force-transmitting member having a longitudinal axis. A load member has a central portion which engages a portion of the force-transmitting member and the load member also has opposite end portions which engage the other of the structures. The load member is mounted such that the first structure applies a force thereto in proportion to the load in one direction to either the central portion or the end portions of the load member, while the second structue applies a force to the other of the central portion or the end portions. Means are provided for measuring the strain introduced into said load member due to the application of said forces applied thereto.
REFERENCES:
patent: 3439761 (1969-04-01), Laimins
patent: 3448424 (1969-06-01), Laimins
patent: 3827514 (1974-08-01), Bradley
Flinth Rune Nils Allan
Nordstrom Kjell Helge
Myracle Jerry W.
Transrail AB
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