r at right angles. end of the press. The oscillating impression cylinder has two Earl V. Beals, of Muskegon, Michigan, received, on Janu¬ impression surfaces. The “retaining cylinder” R takes the ary 24, a patent for a matrix-making machine. The machine once-printed sheet from the first impression… … ing-roller carriers so adjustable that their throw may be regu¬ passed between a series of needles and a series of type-carrying lated to diminish or increase the distance of travel of the rings, each controlled by a magnet. When a perforation in rollers and providing an adjustable system of gears…
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Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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