Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 106
to these teeth is such that whenthe anchor is pressed forward by the piston rod t, it forcesthe wheel D forward one-half tooth and at the same timeraises the anchor point / from contact. By the reverse move-ment of the piston T, the first anchor point is withdrawnand the opposite one inserted,… … FiG. 8.—Side view of minute mechanism. sible for the hands to fall either forward or back. In orderto keep the hands in an absolutely rigid position, althoughthere may be a movement taking place of the anchor /-/,pawls r and s fall into the teeth of the wheel on the oppo-site side from the anchor.…
Science · Technology · Meteorology · Patents
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