Reaction Time Instruments

REACTION TIME INSTRUMENTS
	Name: Hipp Chronoscope Manufacturer: Description: Consists of clockwork which has two dials which are regulated by a weight which is connected to a clutch that is connected to electromagnets. Glass dome covers clockwork, all mounted on four pillars which are mounted on a wooden base. Use: Measures short periods of time and is capable of measuring up to milliseconds.

	Name: Jastrow's Five Finger Reaction Key Manufacturer: Stoelting Co. Description: Use: Records time

	Name: Maelzel Metronome Manufacturer: Seth Thomas, Zimmerman Description: Consists of an inverted pendulum whose speed is regulated by raising or lowering the bob. This is housed in a triangular box that also contains a linear scale. Use: Marks off short periods of time.

	Name: Reaction Time Keys Manufacturer: Description: Use: .

	Name: Sanford's Vernier Chronoscope Manufacturer: Stoelting Co. Description: Consists of a vertical rod attached to a metal base in a 90 degree angle. Attached to the rod is a crossbar from which two brass pendulum bobs with face-hooks hang. Use: Time measurement.