Patent GB-696024-A (GB)
Title: Improvements in or relating to apparatus and methods for wrappering books
Inventor: GIRDLESTONE PETER CRAWFORD
IPC: B42C15/00
Filed: 1949-02-10
Abstract: 696,024. Bookbinding. ALTUS ENGINEERING CO. (CORSHAM), Ltd. May 8, 1950. [Feb. 10, 1949] No. 3748/49. Class 16. A book wrappering machine comprises a pair of spaced parallel walls providing a shoot through which wrappered books are delivered back downwardly onto an oscillatable platform below and means to oscillate the platform whereby books received on the platform have their backs squared by being thrown up and along to land on their backs each time the platform oscillates, the books being kept perpendicular to the platform by the walls of the shoot. Referring to Fig. 1, unwrappered books are introduced under a guide 146 into a shoot 12, 39 where they are arrested by a pivoted stop 26 which falls when a wrapper is positioned on a platform 61 (Figs. 4 and 7), adhesive side uppermost. The platform 61 is then sharply moved sideways from under the wrapper, and the wrapper and book fall between rubber covered rollers 27, 28, which press the wrapper to the sides of the book, and then through a shoot 29 on to an oscillatable platform 30 which squares the back of the book and passes it out sideways onto a conveyer 31, the operation of which is synchronised with the book feed and is slower so that the books are stacked on the conveyer in echelon fashion. The shoot 12, 39 (Figs. 1 and 4) consists of a fixed side member 12 and a side member 39 slidably arranged on a slide having flat and inverted V runs either side of a convever chain 14, the member 39, and roller 28 and side 40 of shoot 29 which are mounted thereon, being adjustable for different thickness books by means of wheels 33, 34 and shaft 35, the head 38A of which contacts a lug 38 on member 39. A clamp 143 secures the member 39 in position. Stop 26 is pivoted on a shaft 49 which carries a lever 50 having a roller 51 engaging a cam 52 on shaft 53A, which rotates continuously, the cam 52 having a cut away portion which allows stop 26 to fall. To prevent the supply of wrappers to the machine if no book is present in the shoot, a finger 54 is pivoted on a shaft 56 and secured to a member 55 carrying a roller 58A moving on a cam 59 also on shaft 53A, the cam 59 having a small cut away 60 so that finger 54 is momentarily urged into the shoot just before stop 26 falls. If a book is present, the finger 54 is prevented from moving into the shoot but if no book is present, the finger 54 moves inwardly to thereby operate a necessary switch 55A to stop the motor of the machine. The wrappers 102 (Fig. 10) are fed from a pile held under fingers 103 by feed bars 104, 109 and passed between rods 41, 42 mounted on the conveyer chain 14. Nibs 44 on a sleeve 43 on rod 41 enter flat faces 45 in rod 42 to form jaws which grip a wrapper, the sleeve 43 being spring urged into the gripping position. A roller 47 is mounted on a lever secured to sleeve 43 and at the feed station, the roller 47 is lifted by a cam 114 and the sleeve 43 is rotated to open the jaws, the cam 114 being moved into and out of operative position by a rod 115 operated by and in time with the wrapper feed. The chains 14 (Fig. 1) pass round sprockets 15-18 and are discontinuously driven from sprocket 15 through a Geneva motion mechanism. Sprockets 17 and 18 are mounted on blocks 20, 140 sliding in guides 21, 141 respectively, the block 20 being urged by a spring 22 to maintain the chain 14 taut and the block 140 being adjustable by a hand wheel 19 to maintain the centres of different length wrappers in correct position on the platform 61. The rods 41, 42 carry a wrapper over an adhesive applying roller 23 which contacts a roller 24 dipping into an adhesive bath 25 which may be heated. The roller 23 is rotated from the shaft carrying sprockets 17 and the rollers 23, 24 and bath 25 are mounted in a housing carried by, and movable with, the block 20. The glued wrapper then continues until it arrives, glue side up, over platform 61 (Fig. 7) when a cam on shaft 71 operates a bar lying above the chain 14 to lower roller 47 which opens the jaws to release the wrapper immediately after cam 52 has released stop 26 so that a book falls on the wrapper. A second cam on shaft 71, adjustable relative to the first, operates a pivoted lever to which platform 61 is pivoted by a fulcrum 62 so that platform 61 is moved sharply from under the wrapper, the far end of platform 61 having rollers 67 which run in slots in the main frame. The platform 30 at the bottom of shoot 29 is pivoted at 88, 89 to four links 82-83, 84-85 oscillating at their top ends about fixed fulcrums 86, 87. A further link 90 pivoted to the end of platform 30 is connected to a crank or eccentric 91 driven from shaft 133, the links and the throw of eccentric 91 being adjusted so that the platform 30 is moved forward and up to throw the book forward and up and the platform then moves back and down so that the book falls further along the platform and the back is squared, the book being kept upright by shoot 29. At the end of platform 30, the book is deflected by a guide on one side of shoot 29 and is tipped over a strippers onto the conveyer 31.