(Einfache Kontaktuhr)
Description: This is a weight-driven clock with the pendulum
adjusted to 1/2 second cycles. The total time is registered on
the face and a pendulum-connected lever makes alternating contact
with mercury pot contacts. (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. 52). Leipzig: Eduard Zimmermann.
DESCRIPTORS:
Type: component, timing, response
Stimulus: N/A
System: N/A
Output: total time, contact closure