Appleton's dictionary of machines, mechanics, engine-work, and engineering (1861)
Appleton, firm, publishers, New York. (1852, D. Appleton & Co.) · New York : D. Appleton · leaf 625
This machine produces easily 60 envelops per minute, or 86,000 per day, completed, gummed, andstamped, and might probably be worked faster. As at present practised in other modes of production,the folding, gumming, and stamping are all separate processes; and as, at each of these operations,every…
Mechanical engineering
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