(Trommel Kymographion eigene Neukonstruktion)
DESCRIPTORS:
Description: This is largely a Baltzar-style kymograph (see
Inside Cover, Fig. 000c). Ludwig-Baltzar
kymograph /A>, the standard variable-speed kymograph. The device
has a spring motor, and because the speed tends to increase in
the beginning as well as slow down when the spring is nearly
finished, speed regulation is accomplished by rotating vanes
which encounter air resistance and which have springs to prevent
excursions which are too wide. The spring can cause the drum to
turn from 2 seconds to 1.5 hours per revolution. The improvements
include a stronger horizontal bearing for the driving shaft from
the spring motor and a stand that places the spring motor more
directly on a level with the driven shaft. The vertical shaft on
which the drum revolves is longer, which permits the kymograph to
receive input from a wider variety of apparatus. (Expanded
caption Copyright 1998, Edward J. Haupt)
(Source: Clearly modeled on Baltzar.)
Source of illustration: Zimmermann, E. (1903). XVIII. Preis-
Liste über psychologische und physiologische Apparate (p.
56) (p. 60). Leipzig: Eduard Zimmermann.
Type: component, recording, continuous response
Stimulus: N/A
System: N/A
Output: graphical time record