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Antique Revolution Counter Tool used to Measure RPM
Antique Revolution Counter Tool used to Measure RPM
Antique Revolution Counter Tool used to Measure RPM
Antique Revolution Counter Tool used to Measure RPM
Antique Revolution Counter Tool used to Measure RPM
Antique Revolution Counter Tool used to Measure RPM
Antique Revolution Counter Tool used to Measure RPM

Antique Revolution Counter Tool used to Measure RPM

$ 15.83

Availability: 47 in stock
  • Brand: None
  • Condition: Used
  • All returns accepted: ReturnsNotAccepted

    Description

    Antique Revolution Counter Tool used to Measure RPM
    Revolution Counter. Working condition. input shaft turns without any resistance or locking, main dial turns accordingly.
    Measurement is by touching shaft point to end of a rotating shaft and timeing the rotation of the main dial. If the main dial does a full revolution in 60 sec it indicates that the shaft is spinning at 100 RPM
    No indication of manufacturer. Probably mid-1800s.
    Measures about 4" in length.
    Steel and brass parts. Point has a 3-sided bevel plus a small slot.
    Used condition with some oxidation, dirt, and grime on surface. Have not attempted to clean as I know some collectors prefer to clean themselves or leave as-is. See photos for more details on condition.