Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts (1880)
D. Appleton and Company, Benjamin, Park, 1849-1922 · New York, D. Appleton · leaf 926
machine, being drawnout according to their thickness. The last hook is arranged to drop at every beat of the machine, sothat no carrier can enter the back row holding any type. These machines are easily run at 4,000 to 6,000 ems per hour. One pair of operators have aver-aged about 4,000 ems an hour… … TYPE-WRITER. A machine in which movable types are caused to yield impressions on paperto form letters and words, through mechanism operated from a keyboard. The object of the appa-ratus is to produce legible printed matter rapidly, and to substitute the same for ordinary writing. One of the…
Mechanical engineering -- Dictionaries
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