Patent GB-433269-A (GB)
Title: Improvements in and connected with means for lubricating rotary printing presses
IPC: B41F13/00
Filed: 1934-02-08
Abstract: 433,269. Printing-machines. GOSS PRINTING PRESS CO., 1535, South Paulina Street, Chicago, U.S.A.-(Assignees of Crafts, C. S.; 645, North Lombard Avenue, Oak Park, Illinois, U.S.A.) Feb. 8, 1934, No. 8118/35. Convention date, September 15, 1933. Divided out of 435,030. [Class 100 (ii)] [See also Group XXXIV] The bearings and gears of a rotary printing-machine, of the kind in which the printing- cylinders and inking-rollers are journalled in a frame at different levels, are lubricated by supplying a lubricant to the uppermost gears and bearings and directing the lubricant by gravity to the lower bearings, the arrangement preferably comprising means for pumping the lubricant continuously from a source of supply to which it returns. As applied to a machine of the kind described in Specifications 434,864, 435,030, and 435,082, in which a number of perfecting-couples 5, 6, Fig. 1, are driven from a common shaft 50, by gearing including bevel gears 95, 96, Fig. 10, and vertical shafts 110 coupled to shafts 87 which drive the inking- mechanism by worm gearing, a rotary pump 311 is driven from the shaft 50 and is immersed in oil in a housing 60 for the gears 95, 96 and associated parts. The gears 95, 96 are thus lubricated directly by immersion. From the pump 311 the oil passes, via pipes 316, 317, to two pipes 318 which lead to branch pipes 320, 321, 322 for lubricating the gear wheels connecting the two printing-couples, and also the driving-gear for the couples which is driven by bevel gears 117 at the top of the shaft 110. These gears are enclosed in a casing formed of parts 340, 341, 342, 343, and 115 connected together in an oil-tight manner and forming with the side 8 of the machine frame an oiltight casing. Passages lead to the roller bearings of the driving-gears of the cylinders 5, 6, and any excess of oil supplied to the upper gears drains through a pipe 368 to a passage 370, Fig. 13, at the top of a casing 371 which encloses the means for reciprocating the inking- rollers 210, 215, and is secured to a lower casing 395 containing the driving-mechanism for the fount roller 140 and the eccentric drive for the oscillating lever 243 which reciprocates the rollers 210, 215. A supply pipe 370<1> leading from the main supply pipe 318 also feeds the passage 320, and from the passage 320 outlets 360, 373, 380 lead respectively (1) to a channel 361 for lubricating the bearing of the roller 215, (2) to a cup 324 for lubricating the pivotal connections between the shaft 216 of the roller 215 and the oscillating yoke which reciprocates the shaft 216, and (3) to a shelf 381 from which outlets lead (a) to the pivotal connection of the link 248 with the oscillating yoke, (b) to a second cup 37 for the lower pivotal connection, and (c) to a channel 361 supplying the bearing of the shaft 211 of roller 210. Excess oil passes from the casing 321 to a lower casing 395, and to a cup 398 for lubricating the eccentric which operates the link 248. The oil in casing 395 lubricates the bevel gears which drive the shaft 142 of the ink-fountain roller 140 from the shaft 101, and pipes 401, 402, 403 carry excess oil from the casing 325 back to the casing 60. The supply pipe 317 is connected also to a pipe 501 which lubricates the bearings of the vertical shaft 87 which is enclosed in a casing 84, and also the bearing of the shaft 101, excess oil returning direct to the casing 60. On the other side of the machine a further pump is arranged and pumps oil from a sump to pipes leading to the bearings and gears on this side of the machine, the arrangements being somewhat similar to those described above. This system includes means for oiling the pivots of a hollow link forming part of a cam mechanism for oscillating a messenger roller 180 for transferring ink from the fountain roller 140 to the rollers 210, 215, and also includes means for oiling the gears of the inking-rollers.