Patent GB-1167957-A (GB)
Title: Improved Boxing Machine.
IPC: B68G7/10
Filed: 1967-09-11
Abstract: 1,167,957. Reinforcing edges of non-metallic sheet material. SOUTHLAND CORD & MACHINE MFG. CO. Inc. 11 Sept., 1967 [14 Sept., 1966], No. 41452/67. Heading B5K. Apparatus for attaching a welting cord 120 to a strip of material 125 comprises a tube 65 through which the cord 120 is to be passed, a pair of material support plates 61, 71, a folding plate 62 partially supporting and being supported by the plate 61, and means for positioning the plate 62 in a first position so that the material 125 may be placed on the plates 61, 71 and being constructed so as to selectively position the plate 62 in a second position with the material 125. As shown, lower rollers 26, 27, Fig. 4, are slidably but non-rotatably mounted, e.g. by splines or axial keyways, on shafts 18, 19 and are rotatably mounted in L-shaped plates 31, 32 apertured to receive a rod 35 having oppositely threaded end portions. The rod 35 is rotatable, so that the plates 31, 32 are adjustable in position for different widths of welting, either manually by a hand crank 39 or electromechanically by a gear assembly 40 actuatable by a lever 130. Upper rollers 46, 47 are similarly mounted on shafts 48, 49 and in the plates 31, 32. Springs (50), Fig. 7 (not shown), urge the rollers 46, 47 downwardly into contact with the rollers 26, 27. Channel-shaped brackets 52, 53 are secured to the plates 31, 32 and carry brackets 55, 56, Fig. 6, having C-section plates 61, 71 attached thereto. Tapered folding plates 62, 72 surround the forward portions of the plates 61, 71 and are pivoted thereto by bolts 63, 73. Tubes 65, 75 having flared inlets 66, 76 and outwardly curved outlets 67, 77 are secured to the plates 61, 71. The plates 62, 72 are normally held in the position of Figs. 4 and 6 by springs 69, 79 and are pivotable away from the plates 61, 71 by energization of solenoids 80, 81. In use, the ends of welting cords 120, 121 are guided into the inlets 66, 76 and fed manually through the tubes 65, 75. The material 125 is laid on the plates 61, 71 and fed into the channels formed between plates 61, 62 and 71, 72. The solenoids 80, 81 are actuated by a switch on a control panel 85 to move the plates 62, 72 away from each other and the plates 61, 71 to enable material 125 to be fed manually past the output ends of the plates 61, 71. The solenoids 80, 81 are de-energized so that the springs 69, 79 return the plates 62, 72 to the position of Figs. 4 and 6 so that the plates 62, 72 turn the lateral edge portions of the material 125 downwardly and inwardly so as to be wrapped partially around the outlets 67, 77 of the tubes 65, 75 and the cords contained therein. A foot switch 110, Fig. 1, is depressed to energize a drive motor 20 to rotate, through a system of belts and pulleys, shafts 18, 19 and thus the rollers 26, 27 thereon and a take-up reel 88. The rollers 46, 47 are frictionally driven by the rollers 26, 27. The rollers 26, 27, 46, 47 pull the cords 120, 121 and the material 125 continuously through the folding mechanism, these rollers being provided with peripheral central recesses to accommodate the cords 120, 121. After a sufficient length of welting has emerged the operator removes his foot from the switch 110 and a lever 97 is moved downward to bring the take-up reel 88 forward so that the end of the welting can be engaged thereon. The lever 97 is raised and, upon depression of the switch 110, the welting produced is wound on the reel 88. The cords 120, 121 contain an adhesive material, e.g. in the form of a spiral wrapping or a continuous stripe or a number of discrete segments along the length thereof or a continuous coating. As the cords 120, 121 pass through the tubes 65, 75, they are heated by thermostatically controlled units (not shown) to render the adhesive tacky so that the material 125 is bonded to the cords 120, 121 as it is wrapped therearound.