Abstract: A web is reciprocated through a treatment roll pair so that a succession of treated areas is formed on the web, one of said areas being formed on each forward movement, and the reverse movements serving to enable re-positioning of the web and avoiding waste between each two said areas. Two pairs of feed rolls are provided, one pair for forward feed and one pair for reverse feed. Each feed roll pair is engageable with and releasable from the web by having separable rolls. The feed rolls are all driven from a common camshaft.

Abstract: Apparatus for die-cutting preprinted web has an adjustable web feed mechanism which is controlled by circuitry for detecting mis-registration between die-cutting and the preprinted portions of the web, of which the following is a specification.

Abstract: A sheet handling device, especially for stacking sheets, includes overhead conveyor belts with a suction chamber to hold sheets against their undersides and mechanism for displacing the sheets from the belts onto a table. This mechanism includes a set of fingers which, as well as being displaceable through the plane of the belts, are also displaceable in the direction of sheet feed to enable them to engage the sheets while travelling in the same direction at substantially the same speed and thereafter slow down the sheets and displace them towards the table.

Abstract: The invention provides apparatus for producing printed and cut blanks from continuous webs of cardboard or the like, which avoids wastage between successive blanks when the length of the blank is not equal to the periphery of the treatment rolls of the apparatus by using two coupled accelerators which adjust the position of the web after each complete operation.