Patent GB-189906063-A (GB)
Title: Improvements in Printing Textile and other Fabrics.
Filed: 1899-03-20
Granted: 1899-05-27
Abstract: 6063. Sharp, S. H., and Sharp & Sons, S. H. March 20. Printing fabrics; stencils and stencilling- apparatus. - Relates to machinery for p ri n tin g designs or patterns upon textile and other fabrics by means of one or more endless stencil plates, strips, or bands. Fig. 1 shows a front elevation of a machine provided with an endless stencil sheet 1, carried by a roller 4, and a roller 5 which is mounted within bearings 11, in brackets 12, secured to saddles 14, adjustable by means of a handwheel 28 and screws 18. The stencil sheet, which may be of metal, has perforations corresponding in shape to parts of the pattern or design to be printed in one colour, and indentations or recesses in one side corresponding to those parts intended to be printed in another colour. An ink duct 29, adjustable by means of screws 30, supplies ink for the recessed parts, and a second duct 32, attached to a bar 33, supplies ink to the perforations. A flexible pressing-bar 36 is carried by the bar 33, and forces the stencil towards a cylinder 37, mounted in bearings 40, which are vertically adjustable by means of the eccentrics 41, worm-wheel 44, worm 46, and hand-wheel 50. Beneath the duct 29 is mounted a shaft 52, carrying a scraper 54, which is forced against the stencil sheet by weights 60, suspended from levers 56 secured to the ends of the shaft 52. A felt-covered roller 65 is mounted upon arms 62, pivoted to the brackets 12, and is adjustable by means of screws 72. An adjustable scraper 78 is mounted upon a shaft 77, and beneath this is an adjustable trough 81. Above the roller 5 is a felt-covered bar 86, mounted within guides 85, and a similar cleaning-bar 89 is fitted within guides 88. A scraper 93, adjustable by means of a worm 95 and hand-wheel 98, is fitted upon a shaft 93<1>, which is carried by a slide 92, mounted upon brackets 34. A damping-roller 102, covered with felt, is carried by levers 100, pivoted at 99, and adjustable by means of screws 104 ; the roller 102 is driven by belt gearing. A scraper 109<1> is secured to a shaft 109, and is forced against the stencil by a lever 111, fitted with an adjusting-screw 112. A brush 118 is mounted within bearings 14, adjustable by means of screws 115, and a wiping-roller 124 is mounted within similar bearings 121. A spreading-roller for removing creases from the material to be printed is mounted in bearings 131 on arms 130, and is driven by belt or rope gearing. On one end of the spreading-roller is a circumferentially-grooved boss 134, which can be moved endwise by a lever 135, secured to a shaft 136, mounted so as to be movable longitudinally, and provided with a hand-lever 140. The material to be printed passes over a roller 142, the tension rollers 143, 144, 145, and a spreading-roller, and on to the blanket 146. The stencil is first damped with turpentine or other fluid by the roller 102, and then cleaned by the scraper 109' and brush 118, and wiped dry by the roller 124 and cleaning-bars 89, 86. Colour is supplied to the recesses from the trough 29, and also to the perforated parts of the stencil, but the colour passes through the perforations on to the roller 5 and is removed by the scraper 78, and discharged into the trough 81. The perforations are finally cleaned by the roller 65, and re-charged with colour from the trough 32.