GB164324A - Improvements in means for cutting a strip of paper into separate pieces - Google Patents

Abstract

164,324. Pasquier, C. R. June 3, 1920, [Convention date]. Guillotine machines for cutting web material.- Relates to apparatus for cutting into sheets strips of paper, &c., such as are fed from a paper making machine on the printing machine described in Specification 148,832, [Class 100 (ii), Printing processes &c.]. The cutter 22 is mounted on a bar supported at each end by links 24 pivoted at 24a to the framing and suspended by links 25 from arms 26 secured to a shaft 27, the knife being held in the raised position by springs 29 connected to arms 30 secured to the shaft 31 on which the links 24, 25 are pivoted. Spring pistons 34 carried by the knife-supporting plate are provided to clamp the work during cutting. Downward movement of the knife is effected by a cam 7 on the driving shaft 5 engaging a roller on an extension 32 of one of the arms 26. The Specification as open to inspection under Sect. 91 (3) (a) stated that the invention included change-speed gearing, comprising a single removable toothed wheel, so that the speed of the rollers may be adjusted to vary the length of sheet cut. A driven shaft 5 carries a wheel 8 driving through a similar wheel 9 a counter-shaft 10 bearing the detachable wheel 11 driving through a pinion 12, a wheel 13 on the shaft 14 of the lower feed rollers 15 against which the upper rollers 16 are spring pressed. To allow different sized wheels 12 to be used, the shaft of the wheel 12 is carried in a slot 21 formed concentrically with the shaft 14 of the roller 15. This subject-matter does not appear in the Specification as accepted.