(Ergograph, Schreibapparat.)
Description: This illustration, unfortunately, does not show the
critical connections, on the left, to the finger held in place by
No. 388, and to the right, over the pulley, down to the weight
that is repeatedly lifted by finger movement. The device, mainly,
consists of a bristle holder which can write on a kymograph drum.
This device is described as having an advantage over No. 391 (not
illustrated), in that it has a cord which runs on two pulleys,
which permits the writing apparatus to move in one direction to
permit multiple recordings on the same kymograph drum. The band
which moves in one direction is used to provide a cumlulating
measure of effort. (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. 111). Leipzig: Eduard Zimmermann.
DESCRIPTORS:
Type: component, recording
Stimulus:
System: muscle movement
Output: