Driving device for intermittently revolving feeding cylinder in printing and paper processing machines

Claim 1

Drive means for a printing and paper processing machine of the type having an intermittently revolving sheet feeding cylinder and a single revolution cylinder comprising a flange bushing, an elongated journal pin for the single revolution cylinder, an extension of said journal pin mounted for radial movement of its axis inside said flange bushing, two cam discs mounted on said flange bushing and adapted to control acceleration, delay and stoppage phases of the feeding cylinder, an elongated shaft for the feeding cylinder, a roller support member firmly connected to said feeding cylinder shaft, two rollers journalled on said roller support member, said rollers being in form-locking rolling engagement with said cam discs during said phases of the feeding cylinder, toothed segment means for effecting accurate coincidence of further rotation of the feeding cylinder with that of the single revolution cylinder, said toothed segment means being intermittently meshingly engageable with a gear secured to said elongated shaft of the feeding cylinder, said sheet feeding cylinder and said toothed segment means being rotatably mounted on the frame of said machine, said cam discs and said toothed segment means being separated from said journal pin extension and mounted on said flange bushing connected to the machine frame, and coupling means connected to said journal pin extension for transmitting rotation of said single revolution cylinder to said cam discs and said toothed segment means, said coupling means being adapted to accommodatE said radial movement of said journal pin extension.