Patent GB-191507751-A (GB)
Title: Improvements in or relating to Machines for Feeding and Moistening or Gumming Labels, Wrappers and the like.
Inventor: MACFIE WILLIAM LESLIE
IPC: B65C9/14
Filed: 1915-05-25
Abstract: 7751. Macfie, W. L., Brooks, C. H., Chiswell, J. E., Andrew, N. P., and Suter, G. E., [trading as Andrew & Suter]. May 25. Pile supports for sheet feeds; separators.- Relates to apparatus for feeding and moistening or gumming labels, wrappers, covers, &c. preparatory to their application to boxes, bottles, cans, packages, parcels, &c. The base or table 1 of the apparatus can be arranged on a stand 2, Fig. 1, or mounted on a bench. A pile of labels is arranged between adjustable fences 3, 4, 5 and a fixed front fence 6 on the table 1, and the labels are fed off successively by one or more suction separators 12 operated to descend on to the pile, rise with the top label, move forward to feed the label to the moistening or gumming rolls 41, 42, Fig. 1, and finally return to initial position. A slight forward movement is also given to the separator when in contact with the pile, to buckle and facilitate separation of the top label, such separation being further ensured by a bar arranged above the pile so as to contact with and bend the lifted label. The separator 12 which may be fitted with an enlarged cup, but preferably has only a small suction aperture 36, and may have its end provided with teeth or roughened, is mounted on a vertical plunger 11 slidably mounted in bearings 13 on a bracket 14 slidable in an horizontal guide 16. Vertical reciprocation of the plunger 11 is effected by a pivoted lever 18 rocked by a cam 17 and bifurcated to embrace the plunger and engage rollers 20 on a block 22 through which the plunger is slidable, the block contracting a collar on the tube to lift it. The separator 12 is thus raised to a constant height, but in the downward movement adapts itself to the constantly diminishing height of the pile. In the raised position of the plunger the bracket 14 is moved forward by a cam 37 to feed the label to the rollers 41,42. A small projection 40 on the cam 37 moves the separator when in contact with the pile to effect the buckling. The suction is preferably produced by a plunger reciprocated, by a crank-pin 26, in a rockcylinder mounted on trunnions and connected to the plunger 11 by a tube 33. The cam shaft 19 is driven from a loosely-mounted belt-driven pulley 62 through a clutch, preferably a onerevolution clutch controlled by a rod 66 and pedal 67. The moistening or gumming apparatus may comprise a roller 41, Fig. 1, partly immersed in a trough 49 and driven from the pulley 62, and an upper roller 42, which may receive some moisture from the lower roller for application to the face-side of the label to prevent curling, and the label &c. is delivered from the rollers on to the grids or wires 44 ready for application to articles placed on a vertically adjustable support 70. In the modification shown in Figs. 4 and 6, the lower roller 45 is mounted in a vertically adjustable trough 43 and supplies gum or water to the upper roller 46, and the label &c. rides up an incline 50 to feed-rolls 47, 48, from which it is directed by an adjustable guard to the upper roll 46. Strippers 53, entering grooves in the roller, strip the label therefrom, and the labels so supplied with gum may fall on to a travelling band passing over or through a drying apparatus.