Combined speedometer and tachometer

Details Combined speedometer and tachometer Combined speedometer and tachometer

1986-09-19

1989-06-27

Swann, III, Glen R.

Signals and indicators

Vehicle

Speedometer

116298, 116300, 116301, G01P 302

Patent

active

048419028

ABSTRACT:
A combined tachometer/gear number indicator, preferably in further combination with a speedometer, is described for use on a motor vehicle for synchronizing engine speeds and vehicle speeds to avoid clutch wear when changing gears. A plurality of coaxial transparent dials carry gear number, engine speed and vehicle speed indicia, and markers are provided for indicating data.

REFERENCES:
patent: 2702520 (1955-02-01), Helgeby
patent: 2879940 (1959-03-01), Cornell
patent: 3807350 (1974-04-01), Powell
patent: 3926142 (1975-12-01), Okamoto

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