Appleton's dictionary of machines, mechanics, engine-work, and engineering (1869)
New York, Appleton · leaf 531
Improved lithor/rapliic-press.—Fig. 3117. This is believed to be the best press in use for lithographicprinting. The side-rods and top beam are made of wrought-iron; the bed and stone are raised to thescraper by a lever and steel cam, working on a steel friction-roller; the impression is reg.ilated… … single screw through the top beam; the scraper is hung on a pivot, that it may accommodate itself toineaualities in the surface of the stone; the bed is made <>! the toughest ash plated svith iron, with iron PROJECTION. 525 runners, which n;n or. Hers; the tympan-frame is wrought-iron, with…
Mechanical engineering
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