Patent GB-924383-A (GB)
Title: Label-carrying printing plates incorporating means for preventing any shifting of the labels and method for introducing labels in such plates
IPC: B41L47/02
Filed: 1959-06-29
Abstract: 924,383. Printing-surfaces. FABBRICA ITALIANA MACCHINE AZIENDALI. June 29, 1959 [July 2, 1958], No. 22231/59. Class 100 (2). A method of inserting a flexible and resilient label into a seat on a flat address plate having retaining means for holding the label only along the longer edges of the seat comprises gripping the label between mating concave and convex members so that it is bent accurately round an axis parallel to its longer sides, and releasing the label while its longer sides are held adjacent the plate so that the longer sides move away from one another and below the retaining means. The means for holding a label in a seating in an address plate or in a frame carrying such a plate comprises a combination of projections on the plate, there being one or more along each long edge of the seating, or one extending along such an edge. In one form, Fig. 7, a frame A carries a plate T and a label S, the latter by means of projections 3. In another form, Fig. 13, the label is held longitudinally by its corners fitting in openings 5 in the seating, transversely by stops 7 and prevented from falling out by projections 4, 6. Several combinations of projections, or projections together with openings and stops, are described, in all cases there being holding means at all four corners, and the short edges being otherwise left free. The label is inserted by curving it about a longitudinal axis, securing it between co-operating concave and convex members, placing it within the seating with its concave side towards the plate and its long edges clear of the holding means owing to the curvature, and removing the convex member, so that the label straightens owing to its elasticity, its long edge moving under the projections, as shown in Fig. 19. A hand tool, Figs. 17 and 19, for inserting a label, comprises levers 56, 58 pivoted together at 57. The lever 56 carries the concave member 66 on a pivot 64, while the lever 58 has an extension 60, and carries a pivot 58 for a trigger 67 carrying a block 71. In operation, the plate T3 is gripped between the block 71 and the extension 60, the member 78 is placed in a channel 79, the label S4 placed between the members 66, 78, and the member 66 brought down to curve and hold the label against the plate, Fig. 19. The member 78 is then withdrawn. A machine for inserting a label, Fig. 23, comprises cams 12, 13 on a driven shaft 11, by the operation of which plates 26 are fed in turn from a container 25 to the right, labels 34 from a container 35 to the left so as to come above the plates, and an arm 44 carrying the concave member reciprocated vertically. The convex member is carried on the carriage 30 which feeds the labels. Alternatively, the label is provided with recesses on its long edges, and after the label is curved between the members, with projections along the edges of the concave member engaging in the recesses, the concave member and label are moved slightly longitudinally relatively to each other, so that the projections engage under the edges of the label. The label can then be moved away from the convex member to insertion position, where it is released by a reverse such relative movement.