Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . tion to them. A fastmotion is given to the cutting-spin-dle, and a comparatively slow oneto that which carries the block. Af-ter the hat has been tightly drawnupon the block, the machine is setin motion, and the spindle of theblock is turned on its column untilthe tip of the hat touches the cut-ting-roller ; the block is then turnedslowly back while the cutting-rolleris pressed against the surface of thehat, and is slowly passed over thesquare side-crown and tip, oftentwo or three time
Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . tion to them. A fastmotion is given to the cutting-spin-dle, and a comparatively slow oneto that which carries the block. Af-ter the hat has been tightly drawnupon the block, the machine is setin motion, and the spindle of theblock is turned on its column untilthe tip of the hat touches the cut-ting-roller ; the block is then turnedslowly back while the cutting-rolleris pressed against the surface of thehat, and is slowly passed over thesquare side-crown and tip, oftentwo or three times to produce the: necessary smooth finish. This ma-chine is in some establishments usedonly for rough work, fine pouncingbeing completed on the apparatusillustrated in Fig. 2306, and knownas the Rosekranz brim-machine. In this device two vibrating rub-bing arms are pivoted to a heavyframe, and actuated in opposite di-rections from an upright crank-shaft. Each arm has on its outer end a plate covered with sand- oremery-paper. The upper arm is attached to the treadle on the right of the machine, and can be.
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Keywords: ., bookauthorbenjaminpark18491922, bookcentury1800, bookdecade1880
