Viscometer

Details Viscometer Viscometer

G - Physics

01

N

73/26

G01N 11/00 (2006.01) G01N 11/14 (2006.01)

Patent

CA 1150974

Abstract An improved rotational viscometer is provided, having a base, a housing, and one and only one adjustable support leg supporting the housing from the base. The support leg provides for adjustment of the length of the leg and provides for align- ment of the housing relative to the base. A rotatable tubular sleeve extends downwardly from the housing, and an electric motor is provided in the housing for driving the rotatable sleeve. The electric motor is connect to the rotatable sleeve by a toothed pulley and belt assembly. A cylindrical non-metallic bob is concentrically positioned within the tubular sleeve and is attached to the lower end of a bob shaft. The upper end of the bob shaft has an indicator dial attached thereto and is connected to the housing by a torsional string. An improved motor control system for the viscometer is provided which allows the viscometer to be powered by several alternative power sources and which provides an internal safety shut off of the power to the electric motor in a situation where the rotating tubular sleeve becomes jammed. Also provided is an illumination light for the indicator dial which varies in intensity depending upon whether the electric motor is rotating at one of a plurality of selectable nominal motor speeds.

365033

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