Printing machine cylinder bearer construction

Details Printing machine cylinder bearer construction Printing machine cylinder bearer construction

1978-09-27

1980-06-03

Stearns, Richard R.

Cutlery

308203, 308237A, F16C 1300, F16C 1702, F16C 2500

Patent

active

042058872

ABSTRACT:
To permit replacement of a cylinder bearer ring without disassembly of the respective cylinder from the printing machine, the cylinder bearer ring is constructed as a composite element assembled of two parts 1, 9; one of the parts has a central, generally U-shaped cut-out to surround the shaft of the associated cylinder, the width of the cut-out being at least as large as the width of the diameter of the shaft; the other part, 9, fits into the cut-out and is formed with a central part-circular recess to surround the shaft. The two parts 1, 9, when interfitted, surround the shaft and form a continuous circular outline and thus a continuous bearer ring. The parts are secured together by bolts. Preferably, the engaging surfaces of the parts are formed with planes which are inclined with respect to a plane parallel to the facing side of the rings, so that, as the two parts run off against the associated bearer ring, there is no sudden transition of one part with respect to the other since the inclined surfaces will overlap axially. The cut-out is positioned at a circumferential region opposite that where the groove of the cylinder is located.

REFERENCES:
patent: 650753 (1900-05-01), Gibson
patent: 1432294 (1922-10-01), Jungk
patent: 1452165 (1923-04-01), Michael
patent: 1452492 (1923-04-01), Carpenter
patent: 1593798 (1926-07-01), Durham
patent: 1597525 (1926-08-01), Knake
patent: 2362069 (1944-11-01), Huck
patent: 2658699 (1953-11-01), Rovas
patent: 3491647 (1970-01-01), Frazier
patent: 3690253 (1972-09-01), Dreyer
Fischer, "Cylinder Circumference Ratios in Web and Sheet-fed Offset Presses", Printing Machinery News 63, pp. 1-23.

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