Pivot mount of elevator load-weighing at car hitch

Details Pivot mount of elevator load-weighing at car hitch Pivot mount of elevator load-weighing at car hitch

1991-11-15

1992-12-22

Miller, Jr., George H.

Weighing scales

With weigher loading or unloading means

Hoist

177132, 177255, 177154, 212158, G01G 1914, G01G 2302, B66C 1316

Patent

active

051727820

ABSTRACT:
The invention weighs an elevator car independently of variations in load distribution within the car and variations in the tension distribution in rods and ropes from which the car is suspended. This is accomplished by means of a top hitch plate, a middle hitch plate, and a bottom hitch plate, which are arranged such that the bottom hitch plate has a pivot 16 mounted on it with the middle hitch plate being mounted on the pivot 16 and a load cell and a support being mounted on the middle hitch plate 17 outboard of the rods from which the car 2 is supported. The top hitch plate is connected to a crosshead at its upper surface. The load cell and support bear against the top hitch plate when there is tension in the rods from the weight of the car 2.

REFERENCES:
patent: 3747402 (1973-07-01), Branham et al.

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