Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 105
iedthrough Z it may press upon any piston, diaphragm or anylike device which may be in the dial room, and this devicemay have sufficient power through the proper mechanismto operate the clock hands. As the cam {Fig. 5) is upon thesecond hand arbor, it is evident that air will be sup-plied once each… … Fig. 7.—Minute mechanism in dial room. To show how the impulses of air which are controlledand sent forward by the rnaster clock serve to operate thedial mechanism in the tower above, we will refer to Fig. 7,which is a more or less diagrammatic illustration of theminute mechanism of the tower…
Science · Technology · Meteorology · Patents
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