Wheel rotation indicator

Details Wheel rotation indicator Wheel rotation indicator

1978-04-14

1979-06-05

Swisher, S. Clement

Signals and indicators

Indicators

Gravity type

116 31, 116200, G01P 1302

Patent

active

041570766

ABSTRACT:
A device which, when secured to a non-horizontal planar rotatable wheel, will display the position of rotation of the wheel with respect to a reference position. The device utilizes a flat member defining in a plane a spiral path of constant cross-sectional area and constantly increasing radius. The member has a solid central area at which the spiral terminates and has a free end at which the spiral starts. Suitable bases secure the member to the center of the wheel in a position spaced thereabove. A loop element slidably engages the member.

REFERENCES:
patent: 2579233 (1951-12-01), Hiatt
patent: 3415217 (1968-12-01), McGrath
patent: 3569932 (1971-03-01), Reed
patent: 4014103 (1977-03-01), Roth

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