Indicating instruments

Details Indicating instruments Indicating instruments

1977-11-23

1979-05-22

Swisher, S. Clement

Measuring and testing

Speed, velocity, or acceleration

Recording or registering interrelated factors

73490, G01P 108

Patent

active

041552563

ABSTRACT:
An indicating instrument particularly for use in a vehicle comprises a first element which is moved behind a window of the instrument such that the amount of the first element visible in the window is indicative of the distance travelled by the vehicle, and a second element that is moved in dependence upon the speed of the vehicle and such that the second element is obscured from view in the window by the first element while a predetermined relationship exists between the speed and distance.

REFERENCES:
patent: 1401315 (1921-12-01), Clark
patent: 1629680 (1927-05-01), Cooke
patent: 2961230 (1960-11-01), Moro
patent: 3034096 (1962-05-01), Craddock
patent: 3502049 (1970-03-01), Samet

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