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    • 14. 发明专利
    • Book-stitching machine
    • GB674371A
    • 1952-06-25
    • GB576250
    • 1950-03-07
    • CHRISTENSEN MACHINE CO
    • B42B4/00
    • 674,371. Stitching book signatures. RAMSEY, A. R. J. (Christensen Machine Co.). March 7, 1950, No. 5762/50. Class 100 (i). A book stitching machine comprises a saddle 5 along which signatures to be stitched are movable to a stitching station, and stitching mechanism comprising a clincher 7 adjustable within the saddle, the saddle including a front plate 8 normally overlying the clincher and movable to a position exposing the clincher for adjustment. The plate 8 is supported by two arms 16 pivoted at 17 to a fixed frame, and is manually movable to the position shown to allow the clincher 7 to be advanced longitudinally along a groove in a plate 11 mounted on the frame, and locked in position by nuts 13 and T-bolts 12. The plate 8 is also movable to an operative position in which it rests on supports 19, the arms 16 then being vertical and a flange 20 engaging a slot 21, so that the lower edge of the plate must be drawn forward before the plate can be moved downwards. An over-centre spring 24 acts to retain the plate in either of its positions. The plate 8 and a fixed plate 9 constitute a V-shaped saddle over which the signatures drape naturally with uniform pressure. The clincher co-operates with a stitching head, and there' may be a plurality of clinchers and heads.
    • 15. 发明专利
    • Side register for sheet feeders
    • GB583594A
    • 1946-12-20
    • GB2185844
    • 1944-11-07
    • CHRISTENSEN MACHINE CO
    • B65H9/10
    • 583,594. Feeding sheets. DEHN, F. B. (Christensen Machine Co.). Nov. 7, 1944, No. 21858. [Class 100 (i)] A side-registering device for sheet feeders of the kind in which the sheets are registered against side guides 11 by feed rollers which grip the sheet intermittently while in contact with the front lays is constructed with two sets of gripping rollers 12 , 12 : 13 , 13 , mounted in oscillating arms 20, and so constructed that when the sheet is gripped by the rollers 13, 131 close to the side guide the arms 20 are raised so as to free the sheet of the grip of the rollers 121, 12". This ensures that any marring of the sheet, due to slippage of the rollers while in contact with the side guide, is outside the printing area, and so does not spoil the prints. The sligbt rise given to roller 12 when roller 13 engages the sheet is shown in Fig. 6. The lower rollers 12 , 13 , are positively driven, and roller 13 is preferably driven more slowly than roller 12 . The rollers act through slots in a feed table 6, and crinkling of the sheets is prevented by a shoe 27 carried by the arms 20, and formed with slots through which the rollers 12 , 13 project. In a modification, Fig. 9, the shoe 27 is replaced by a shoe 30 which has a lost motion connection (rod 34 and aperture 35) with the arms 20, and when the rollers 12 , 12 are in engagement the shoe is maintained by gravity in a position which is controlled by engagement of a screw 32, Fig. 10, not shown, with a fixed part of the frame.