Patent GB-190203660-A (GB)
Title: Improvements in Machines for Cleaning Printers' Rollers
Filed: 1902-02-12
Granted: 1902-04-17
Abstract: 3660. Lake, H. H., [Printers' Roller Washing Machine Co.]. Feb. 12. Cleaning in k i n grollers.-Fig. 3 shows a sectional elevation, and Fig. 6 a transverse section, of a machine for cleaning inking - rollers. One end of the spindle c of the inking-roller C is engaged in a split socket b<3> having a stem b<5> passing through a spindle B rotated by a belt b<1> and pulleys b, b<2>. The other end of the spindle c rotates in a socket D' on the end of a non - rotating spindle D in a support D<1> mounted to slide, to and from the spindle B, on the bars a, a<1> of the framing A. The support D<1> is locked in position by a bolt operated by a lever d<6>, and this lever also serves to press the spindle D and roller C towards the spindle B, to engage the roller in the socket b<3>. The socket b<3> is moved to the right, to disengage the roller spindle c, by a lever b<6> connected to a treadle. Turpentine or other cleaning-liquid is applied to the roller, and rubbed into its surface by rollers H, H<1> on a shaft journalled in arms h' pivoted on the bar a<1>. The rollers H are ribbed or grooved, and alternate with smooth rollers H<1>. The arms h<1> are at each end of the sleeve e of a carriage mounted to slide on the bars a, a'. This carriage is moved in either direction along the roller C, by an endless chain f driven by worm gearing g from the spindle B. The upper and lower runs of the chain move in guides f<1>, f<2> on a frame f<3>, and the carriage may be engaged with either run, or left free, by means of a pair of bolts operated simultaneously by a lever f<7>. The rubbing-rollers run in liquid in a shallow trough I hung on the shaft of the rollers and attached to a supply pipe i leading to a reservoir I', in which the liquid is maintained at constant level by a supply reservoir I<1>. The reservoir is carried by an arm k pivoted on the bar a and moving with the carriage e. The arm k is parallel to the arms h<1>, and is pivoted to a bracket k<1> on the pipe i<1>. On the hub of the arm k is a weighted arm k<2>, which operates to press the rubbing-rollers H, H<1> against the roller C. The liquid and ink are removed from the roller C by a scraper L on an arm l, and pressed against the roller by a weighted arm l<2>. The scraper L moves with the carriage. The scraper, Fig. 10, is preferably formed by inclined metal strips l<7>projecting from and fixed to a block l<8> The inclined position of the strips prevents them from injuring the seams of leather-covered rollers. The scraper may be held out of contact with the roller, when desired, by engaging a latch l<4> with an arm l<5> on the hub of the arm l, In an arm m<4> of the carriage e is journalled a shaft m<6> carrying a disc cleaner M which rests on the roller C, and the lower side of which may be covered with carding-cloth, sand paper, &c. The carding-cloth produces a soft, velvety surface on leather rollers. The shaft m<6> rotates with, and is movable vertically in, the hub of a pulley m<1> driven by a band n<5> passing round guide pulleys and a driving-pulley n<4> on a shaft n driven by bevel gears from the spindle B. An annular scraper or stripper O surrounds the roller C and is mounted on the carriage e. This stripper contains a number of pivoted blades o', Fig. 17, movable on their pivots o<3> by means of a rotatory ring engaging pins on the blades. This ring may be turned to set the blades o<2> so as to engage rollers of various diameters, the inner edges of the blades being preferably formed in a series of curves suitable for engaging rollers of standard sizes. The liquid and ink removed from the roller pass into a trough P having a discharge pipe p. The worm g is movable along the spindle B so that it may be driven by clutch teeth g<4> on the loose pulley b<2>, the spindle B remaining stationary ; or the worm may be moved to the left and engaged with clutch teeth g<5> on the spindle B, so that both may be driven by the fast pulley b.