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Scientific American, Vol. 64, No. 8 (February 1891) (1891)

leaf 4

An illustration from Scientific American, Vol. 64, No. 8 (February 1891), 1891, leaf 4
crew is removed fromthe slot in the guide, and the handle is turned to bringthe thread on the rod in engagement with the threadin the barrel near its outer end, thus shutting off com-munication between the interior and the stuffing box,when the gland can be conveniently removed and thestuffing box… … CUSHMANS BICYCLE TREADLE. ally to facilitate the work of hill climbing, its construc-tion being such as to:increase theleverage upon the crankarms on the downward stroke, when, also, the pedalsand the cranks are tied together, the improvement be-ing adapted for attachment to any pedal now in use.…

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