Patent GB-151105-A (GB)
Title: Machine for manufacturing and dispensing sanitary drinking cups
IPC: B31B23/00
Filed: 1919-06-24
Abstract: 151,105. Fairweather, H. G. C., (International Germ Proof Cup Machine Co.). June 24, 1919. Paper bags, making.-Relates to a paper drinking-vessel and to a machine for making the vessel. The vessel A, Figs. 15 and 17, consists of a doubled blank of paper, preferably paraflined paper, having the side edges folded in the manner described below and united by crimping. The front of the blank is preferably longer than the back, and the flap 3 is doubled on the front to form a smooth mouthpiece, the edge folds on the flap being united or looked to the edge folds on the front by crimping. The edge folds on the vessel are formed by folding a blank successively on the lines r, s, t, Fig. 15, the narrow outward fold on the line s being enclosed in the fold made on the line t. The machine comprises feed-rollers 38 for drawing a length of paper from a roll R, a guide 56 for deflecting upwards the part of the length that forms the back of the vessel, a reciprocating knife 66 for severing the length, a reciprocating blade 57 for doubling the length and forcing it through a former 4 for making the edge folds, rollers 81, 82 for crimping the edge folds, and a reciprocating blade 94 for transferring the vessel to the bite of the rollers 82 and crmping-rollers 91 which deliver the completed vessel and lock the flap to the front of the vessel. All the working parts of the machine are operated by a crank 48, Fig. 1. The feed-rollers 38 are secured to shafts 37 which are geared together by pinions 39, one of the shafts having a pinion 40 gearing with a pinion 41 which is driven by a mutilated pinion 43. on a shaft 44 geared to a pinion 46 on the crank-shaft 47. When the pinions 41, 43 are not in mesh, accidental movement of the pinion 41 is prevented by the engagement of a block 49 on the pinion with the rim 49<1> of a face-cam 64 on the shaft 44. The roll R of paper is carried by pivoted arms 32 which can be drawn forward and sprung apart to permit of insertion of the roll. The paper, on leaving the feed-rollers, passes through guides 52, 53, the guide 53 being adapted to divert the paper on to the guide 56, and being pivoted and urged forward by a spring 55 in order to permit of operation of the blade 57. Before the blade 57 is operated, a length of paper is severed by means of the knife 66 which co-operates with a stationary knife and is operated by levers 67 which are rocked by a cam 72 on the shaft 44. The blade 57 is secured to a cross-bar 58 having depending racks 59 geared with segments secured to a rockshaft 61 and operated by the cam 64. The former 4, shown separately in Fig. 18, consists of plates 6, 8 and an intermediate plate 7, the plate 6 being formed at each side with a wing consisting of an in-turned bend 75 and an out-turned bend 76, the bends 75 enclosing the side edges of the plate 7, and the bends 76 being enclosed by curled and tapered wings 80 on the plate 8. In the passage of the paper through the former, the bends 75 co-operate with the plate 7 to fold the edges on the lines r, Fig. 15, and the wings 80 then co-operate with the bends 76 to fold the edges on the lines s, t. The guide 56 is integral with the plate 6. The crimping-rollers 81, 82, 91 are geared together and are also geared to the pinion 46 on the crank shaft. The blade 57 transfers the vessel to the rollers 81, 82, and the sliding blade 94, operated by a lever 96 which is rocked by a cam 100, transfers the vessel to the rollers 82, 91 and starts the folding of the flap 3. The working parts are mounted in a frame which consists of side plates 29 and cross-bars, and is detachably mounted in a casing 22 having a hinged or detachable front plate.