Beam balance with unequal arms and didder device

Details Beam balance with unequal arms and didder device Beam balance with unequal arms and didder device

1986-07-11

1987-12-29

Miller, Jr., George H.

Weighing scales

Preset

Lever balance-type beam

177210R, 177251, G01G 2314, G01G 314, G01G 118

Patent

active

047154586

ABSTRACT:
The sensitivity of a balance beam having unequal arms used to detect and measure phenomenon which exert low energy mechanical forces includes a U-shaped beam area having a horizontal slot therein and a pivot post having a vertical slot which registers with the horizontal slot. A fastener, such as screw and wing-nut passes through the slots to releasably fix the pivot post to the fulcrum area in a selected horizontal and vertical position. The selected position is the optimum point of equilibrium of the beam that is determined when the horizontal fulcrum's bottom knife edge passes through center of gravity of the beam. Pivot post has a blade thereon which extends perpendicular to the balance beam and rests on a pair of fulcrum supports. The fulcrum supports are vibrated by a didder device to enhance sensitivity of the balance beam.

REFERENCES:
patent: 2626796 (1953-01-01), Seederer et al.
patent: 3587762 (1971-06-01), Ast
patent: 3590932 (1971-07-01), Dybwad
patent: 3753472 (1973-08-01), Dybwad et al.
patent: 3926270 (1975-12-01), Meier

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