. American engineer and railroad journal . lted to the housings. The motor armature shaftwas extended by coupling on a piece o^p?hafting, and on theend i>i ili is shaft was keyed a fly-wheel, which is also used asa pulley for the bell for i ti return stroke, A countershaft was nose tools on some mild-steel locomotive guide bars. The barswere tapered slightly toward the ends, and the heaviest cut,which was 5-16 of an in. full, was taken near the middle of thebar. The feed was 7-32 of an in. The power required in cuttingvaried from about at the ends of the guides to at the
. American engineer and railroad journal . lted to the housings. The motor armature shaftwas extended by coupling on a piece o^p?hafting, and on theend i>i ili is shaft was keyed a fly-wheel, which is also used asa pulley for the bell for i ti return stroke, A countershaft was nose tools on some mild-steel locomotive guide bars. The barswere tapered slightly toward the ends, and the heaviest cut,which was 5-16 of an in. full, was taken near the middle of thebar. The feed was 7-32 of an in. The power required in cuttingvaried from about at the ends of the guides to at the middle. The reversal from the cutting stroke tothe return required 29 111; moving the platen on the return,; anil the reversal after the return, Whenrunning light, was required to move the platen on theforward stroke. The cutting speed throughout these trials was about 23V4 minute, and the speed of the return stroke 50 ft. per min-ute. Although the controller was set at point No. 19, at which.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
