Dynamometer [Ergograph] for showing strength of hands. By Verdin, Paris Dynamometer [Ergograph] for showing strength of hands. By Verdin, Paris

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@misc{51208,
  note         = {{http://vlp.mpiwg-berlin.mpg.de/references?id=lit81 
                   40\&page=p0016s0007\&mk=0.625/0.1198 Perhaps this is
                   one of these items:  127.    Pendulum instrument
                   for giving rhythmical electric contacts and short
                   optical impressions, and for controlling the
                   chronoscope. After Münsterberg, by Elbs, Freiburg.
                   or 131.    Reaction-time pendulum. After GalLon,
                   by Cambr. Scient. Instr. Co. \$18. or 132.
                   Machine for measuring reaction-time by a falling
                   rod. After Galton, by Cambr. Scient. Instr. Co.
                   \$40. Rand: Please confirm. Comment Rand Evans II:
                   I can not locate this on the larger photo.  It
                   does not look like a pendulum but more like a
                   weight to drive a timing mechanism. That is only a
                   guess. Thumbnail replaced with marked version.
                   Comment IV (kk): I cut out a larger snip of what
                   you assumed to be part of a timing mechanism, so
                   you can locate the clipping on the negative.  It
                   is attached to this mail.  Comment V: I think the
                   weight belongs to the device  that is behind the
                   chronograph. I believe it belongs to a Mosso
                   ergogrraph made by Verdin, the end of which is
                   partially showing to the right of the chronograph.
                   I attach a snip from P002 with this email.
                   Muensterberg lists such a device as M 110
                   Dynamometer for showing strength of hands. By
                   Verdin, Paris". It looks to me to be the following
                   item (pg 117 Fig. 45 in Verdin's cataloge in the
                   VL library): http://vlp.mpiwg-berlin.mpg.de/librar
                   y/data/lit13677/index\_html?pn=118\&ws=1.5  Note the
                   two bolts at the end of the object in the
                   photograph and in the Verdin figure. The weight is
                   hanging from this device through a hole in the
                   table or over the edge of the table and is the
                   weight the hand must raise to move the stylus
                   against the smoked drum of the kymograph. Comment
                   VI: In Verdin's Catalogue (the one with no date)
                   on p. 117 the image at the top, fig. 44 is the
                   setup using that instrument with the hand device
                   but lacking the kymograph. If you look on the
                   photograph P001 you can see the wire that extends
                   from the ergograph to the right where the hand
                   device was located. You can also see the stylus.
                   So, if it was done as shown here the weight must
                   be over the end of the table.  Comment VII (kk):
                   Das Instrument ist wohl weniger ein Dynamometer
                   als ein Ergograph, oder? Klären und eintragen:
                   "Ergograph. After Mosso, by Corino, Torino. \$30
                   [acc. to No. 182 of the related published
                   article]"; dann Link auf Ergograph-img aus
                   lit38666 hinzufügen.}},
  url          = {https://vlp-new.ur.de/images/img30205}
}