Patent GB-749946-A (GB)
Title: Record copying apparatus for autographic registers
IPC: B41L5/06
Filed: 1954-05-06
Abstract: 749,946. Copying documents. STANDARD, REGISTER CO. May 6, 1954, No. 13285/54. Class 100 (2). [Also in Groups XV and XIX] An autographic register or like device in which a master copy is inscribed with solvent soluble ink and permanent record copies are then made from this master copy comprises a table 15, Fig. 2, over which are fed copy sheets and superposed master sheet, the table serving as a backing during the operation of inscribing the master sheet, a roller beneath the table for applying solvent to the lowermost copy sheet and a roller above the table for pressing the superposed sheets against the first roller to transfer the ink from the top to the lower sheets. The sheets consist of superimposed record forms each having two series of marginal perforations for engagement with pins 31 mounted on the peripheries of spaced wheels 29 for feeding the forms together over the table. As shown in Figs. 2 and 3, the pin-wheels 29 are mounted on a spindle 27 rotatable by a handle 28. A clamping bar 33, extending transversely across the table adjacent the rear end, is carried on a pair of arms 18 pivoted about a spindle 19, Figs. 3 and 6. At each end of the bar 33 there is provided a roller 36 mounted on an axle attached to the arm 18 and the bar 33 and adapted to co-operate with a cam 37 rotating with the spindle 27. The cam 37 is formed with notches 38 at opposite points on its periphery, the arrangement being such that when rollers 36 enter the notches the clamping bar is allowed to move under the influence of springs (not shown) to clamp the forms against the table. Extensions 35 from bar 33 also serve to clamp the forms against the table. The extensions 35 and the bar 33 are slotted to pass the projecting pins 31 on wheels 29. Inside the cross-bar is mounted a roller 47 the spindle 49 of which is vertically slidable and pressed downwardly by springs 53. Discs 50 mounted on the spindle 49 bear downwardly on cams 51 also rotating with the spindle 27. Below the table, and projecting through an opening 46 in it, is the solvent applying roller 44 mounted on axles 45 rotating in openings in the side walls of a solvent reservoir 42. A gear 57 mounted on the axle 45 meshes with an internally-toothed gear ring 56 so that the surface speed of the roller 44 is the same as that of the forwarding pin-wheels 29. The cam 51 has a fall part allowing the roller 47 to come into pressure engagement with the forms 20 and force them against the solvent applying roller 44. Roller 44 has an absorbent coating which becomes saturated with the solvent. In operation, the forms are fed together from a container 21 to a recording position on the table where the uppermost form (the master form) is inscribed. The rollers 36 engage notches 38 in cams 37 in this position and allow the bar 33 to clamp the forms against the table. Further rotation of the handle 28 first causes the bar to lift to free the forms and then advances the forms so that the inscribed part comes under the pressure roller 47. At this moment the discs 50 come to the fall part of cams 51 allowing roller 47 to force the forms against the saturated roller 44. The solvent soaks through the forms, dissolves the ink on the master form and transfers it to the underlying forms. The forms may then be fed together to a receiver 25 or one or some may be separated by a flutter plate 23 and ejected. These forms may be torn off, if desired, using the cross-bar 33 as a backing.