Falling hammer delay timer

(Kontrollhammer)
Description: In this simplified timer, the hammer is electrically released by the upper solenoid. The duration of the hammer's fall is adjustable by varying the counterweight and this sets the delay. The hammer simultaneously opens and closes two electrical circuits. (Expanded caption Copyright 1998, Edward J. Haupt)
(Source: None given.)
Source of illustration: Zimmermann, E. (1903). XVIII. Preis- Liste über psychologische und physiologische Apparate (p. 35). Leipzig: Eduard Zimmermann.

DESCRIPTORS:
Type: component, stimulus timing
Stimulus: N/A
System: N/A
Output: N/A

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