Patent GB-190923637-A (GB)
Title: Improvements in Apparatus for Printing Textile Fabrics.
IPC: B41F17/00
Filed: 1909-10-15
Granted: 1910-10-13
Abstract: 23,637. Bradford Dyers' Association, Thornton, D. H., and Metcalf, A. T. Oct. 15. Cylinder and like machines for printing on fabrics. The fabric is led in the piece round a cylinder of large diameter, by which it is pressed upon printing- blocks carried by an endless chain on chainwheels slidably mounted upon transverse shafts, so that the blocks may be moved to any position laterally beneath the fabric. The chain of blocks is supported by a table free to move transversely with the chainwheels, and the cylinder and chain of printing- blocks are driven at the same surface speed. Fig. 1 is a side view, and Fig. 2 an end view of the machine. The fabric passes over a roller e<2> and round the large cylinder d, and is pressed upon the printing - blocks q<3> carried by a chain k on wheels j<1>, j<2> slidably keyed to transverse shafts g<1>, g<2>. The chain passes along a race in the top of a supporting table x provided with forked ends fitting into grooves in the bosses of the chainwheels and carried by transverse shafts l<1>, l<2> in bearings adjustable vertically by screws n<1>, n<3> provided with bevel-wheels p<1>, p<3> engaging bevelwheels mounted on shafts q<1>, q<2> provided with handwheels. The shafts q<1>, q<2> are connected by a chain passing over chain-wheels t, u. The wheel t is loose on the shaft q<1> but may be locked to it by a clutch so that the shafts l, l<1> may be adjusted simultaneously or separately. The table and chain are adjusted transversely by means of a screwed shaft a passing through a nut y movable in a vertical slide on the table x. The machine is driven by a shaft b, Fig. 2, from a belt pulley c through a friction clutch f, the shaft b driving a counter-shaft h through a chain l. The shafts b, h are provided with pinions r<1>, p, engaging spur-wheels s<1>, q, on the axle of the cylinder d, and on the shaft g<1> respectively. The ratios of the gear wheels are such that the cylinder d and chain k are driven at the same surface speed. The fabric is led from the cylinder d over a roller r<2> and thence to an ordinary cuttle driven from the shaft b by a belt pulley t<2>. A blanket e<1> passes round the drum d and is kept taut by rollers y<1>, z<1>. Inking-apparatus.-The ductor-roll g<4>, Fig. 5, and ink-cylinder a<3> are slidably mounted on shafts d<2>, d<1>. The ink trough g<3> is mounted upon a bridge-piece a4 carried by side plates e<3>, e<4>, Fig. 6, and is adjustable by means of setting-up screws k<3>, l<3> and a fixing-screw r<3>. A messenger roll x<3> is carried between a pair of levers v<3> clamped to a shaft u<3> mounted in slides s<3> in the side plates e<3>, e'. The shaft u<3> is oscillated by means of a lever y<3> carrying a roller z<3> running in contact with a cam l' adjustably mounted upon the boss of a member k<4>, Fig. 6, carried by the shaft d'. Four distributing-rolls t<4> are carried by levers u' clamped to shafts v', which are freely mounted in the aide plates e<3>, e', and are reciprocated longitudinally by means of runners x<4>, Fig. 6, which engage a winding-cam y' carried by the shaft d<1>. The rolls t<4> are kept in or out of engagement with the inkcylinder a<3> by means of springs a<7>, Fig. 7, fixed to the side plate e<3> and bearing upon one or other of the inclined faces of catches z<7> clamped to the shafts v'. The ink is transferred from the inkcylinder a<3> to the printing-blocks q<3>, Fig. 5, by means of a roller b<5> carried by levers d<5> clamped to a spindle s<5> mounted in slides f <5> in the side plates e3, e<4>. A balance weight h<5> keeps the roller b<5> in contact with the ink-cylinder a<3>. The inking- apparatus may be moved to any position along the shafts d', d' by means of a screw s<4>, Fig. 2, which may be connected by a chain and chain-wheels to the screw a for moving the type-carrying chain, so that the whole may be moved simultaneously. The inking-apparatus is driven by means of the pinion r<1> on the shaft b gearing with an idle wheel t<1>, which also gears with a wheel g<5> on the shaft d'. The shaft d<2> is driven intermittently by means of a crank w<1>, which oscillates a lever x<1> carrying a pawl which engages a ratchet-wheel fixed to the end of the shaft d<2>. The end of the crank w<1> is adjustable radially of a disk v<1> which is adjustable circumferentially of the shaft d' so that the amount of motion imparted to the shaft d' may be regulated. A second type-carrying chain and inking-apparatus may be fitted to the machine so that both edges of the fabric may be printed at once. According to the Provisional Specification, provision may be made for cleaning the type and also for printing the fabric in different colours.