The American journal of the medical sciences . Commutator, with arrangement for completing chronograph circuit at cverv revolution of wheel. Fig. Commutator and motor. The chronograph (which is near at band in the astronomical obser-vatory of Princeton) records every other second from a standard clock. :3bb STARR, YOUNG, MUSCLE RESPONSES. The recording of the commutator revolutioas is effected in the followingmanner: On referring to Fig. 2 there will be seen, at the base of the commu-tator, a projecting tongue of brass, so placed that at every revolution alittle knob on the commutator whee
The American journal of the medical sciences . Commutator, with arrangement for completing chronograph circuit at cverv revolution of wheel. Fig. Commutator and motor. The chronograph (which is near at band in the astronomical obser-vatory of Princeton) records every other second from a standard clock. :3bb STARR, YOUNG, MUSCLE RESPONSES. The recording of the commutator revolutioas is effected in the followingmanner: On referring to Fig. 2 there will be seen, at the base of the commu-tator, a projecting tongue of brass, so placed that at every revolution alittle knob on the commutator wheel strikes it and depresses it, causingit to come in contact with the head of a screw placed beneath. This,when the switch (referred to above in Fig. 3) is closed, completes thechronograph circuit, so that each revolution of the commutator wheelis recorded. Fig. 4 shows the appearance of a record made by the first five lines show the clock record alone. In the lines below each Fig. 4. Fragment of chronosTraph sheet showing clock record, together with records madeby commutator wlien run at ditlerent speeds. little tooth stands fo
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Keywords: ., bookcentury1800, bookidamericanjournalo102p, booksubjectmedicine
