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Scientific American, Vol. 96, No. 9 (1907) (1907)

leaf 9

An illustration from Scientific American, Vol. 96, No. 9 (1907), 1907, leaf 9
emen be- come visible at the same time. The approximate speed of the targets is recorded by a tachometer driven from the drum shaft. The whole outfit is used either combined or in two sets of one battery van and one capstan van each at two different places. In case cavalry targets are to be given a… … nected to a dynamo. The latter is used to supply cur- rent to the motors which are mounted directly against

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