Patent GB-722339-A (GB)
Title: Improvements in or relating to marking or embossing presses
Inventor: CHAPMAN ARTHUR MCDONAGH
IPC: B41F19/06
Filed: 1952-03-13
Abstract: 722,339. Embossing- or marking-machines. MASSON SEELEY & CO., Ltd. March 12, 1953 [March 13, 1952], No. 6557/52. Class 100 (2). An embossing- or marking-machine comprises a work-supporting platen 4, a co-operating pressure-applying platen 2 movable towards and away from the platen 4, a table 12 slidable over the platen 4 and means for reciprocating the table from a forward position in which it is suitably disposed for receiving the work in the form of flexible articles, e.g. stockings, into a retracted position behind the zone in which pressure is applied, movement of the table towards the retracted position when the machine is in use serving to carry the work to the pressure zone and to deposit it in that zone and movement towards the forward position causing the work to be swept out of the pressure zone. The table 12 runs on rollers 13 guided by slots 14 in side brackets 15 and is controlled by a series of links 16 forming a lazy tongs system. The end link 17 is pivoted at 18 to the upright 1 of the machine and the end of the other end link 19 is slidably guided in a slot 20 for movement towards and away from the pivot 18. A spring 21 urges the end of link 19 away from the pivot 18 and tends to cause retraction of the table. An extension 22 of link 17 is connected to a lever 26 pivoted to a quadrant 27 attached by an adjusting eccentric 29 to a lever 10 adapted to oscillate with the reciprooating mechanism of the press. A strap 28 guides the lever 26 on the quadrant 27 and allows lost motion between these parts thereby causing a period of dwell in the retracted position of the table. This period of dwell is necessary to allow the platen 2 to descend and rise again. Colour bearing foil is fed from a spool 6 on the platen 2 by feed rollers actuated by a ratchet and pawl driven from the oscillating arm 10 through link 9 and lever 8. In operation the articles to be marked, e.g. stockings, are held in a bundle on a platform 30, e.g. by a detachable clamp, and folded back. As the machine is working, one article at a time is laid on the table and the machine started. The table thereupon carries the article towards the pressure zone. The attachment of the article to the platform 30 is arranged so that the slack in it will be taken up and the article pulled off the table and deposited on the platen 4 in the pressure zone. The table passes beyond the pressure zone and the platen 2 descends to mark the article and then rises again, the table remaining stationary for a sufficient time due to the lost motion between quadrant 26 and lever 27. Clockwise movement of the quadrant causes the table to return to the forward position sweeping the marked article off the end of the platen 4. A brush or pad may be fixed to the forward end of the table for this purpose. The marked articles hang in the gap between the platform 30 and platen 4. The lower platen 4 may be formed with a part of somewhat lower level so that the table may drop down in the fully retracted position to avoid interference with the mechanism on the upper platen. The machine may be controlled by a mechanism which for each actuation causes the machine to perform one complete operating cycle.