Maschinenfabrik Goebel Gmbh

Hans Jakob

Hermann Thomas

Josef Herd

A knife cylinder for processing a continuous web has a plurality of knife blades mounted therein by metallic bellows cylinders located in grooves which receive the knife blades. At least one force transmission element is likewise located in each groove between the blade and the bellows cylinders, or between the bellows cylinders and an opposing wall of the groove. Such elements contain pressure medium passageways connected with a pressure medium generating assembly for internally pressurizing the bellows.

Knife cylinder for processing a continuous web

A folding apparatus for the zigzag folding of a web includes an oscillating multi-section guide channel device comprising upper and lower funnels pivotally interconnected and a pair of web drawing rolls located in the immediate vicinity of the pivot axis about which the funnels are connected. The lower and upper ends of the walls of the respective funnels lie on opposite sides of the drawing rolls, and at least one of the ends of one of such walls is spaced from the rolls in the direction of web movement for defining at least one opening in the vicinity of such pivot axis for the entry of air into at least one funnel. The proximity of the rollers to the pivot axis and the contoured light weight metal walls reduce inertia forces during oscillating movement of the device and the migration of air with the web facilitate running of the web through the device so as to increase the operating speed of the folding apparatus.

Zigzag folding apparatus having means for decreasing inertial forces

A folding apparatus for the zigzag folding of a web includes at least one reciprocating channel guide through which the web passes, the channel being engageable with the apparatus at a selected and changeable pivot point to thereby effect an adjustment of the amplitude of the channel for the folding of differently sized web sections. A pair of pivotally connected channels is alternatively provided, the upper and lower ones of which also being engageable with the apparatus at a selected and changeable pivot point.

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Darmstadt-Eberstadt, Germany

Hans Jakob