Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 67
esits idling position in the housing. The driving pulley Fy is on theother end of the shaft, as shown in Fig. 2. Except duringexposure the cast-iron wheel IVli (see Fig. i) idles on its shaftSh, being driven by the worm IVo. The energizing of the magnet 52 E. A. ECKHARDT. [J.F.I. coil M causes the… … Motor Wiring diagram of camera. thus imparting to the drum the desired axial motion. The camerasin our laboratory are equipped with readily interchangeable wormand wheel combinations, so that axial motions of either one-fourthor one-half inch per revolution may be had, corresponding respec-tively…
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