Method and apparatus for storage of paper sheets and the like
AssigneeGrapha-Holding AG
InventorHeinz Boss
Life of this patent
Estimating the term…
Abstract
Successive sheets of a stream of partially overlapping or immediately following paper sheets are fed onto the upper side of an elastic band whose leader is attached to a horizontal core so that, when the core is driven, the band is convoluted therearound from below and its convolutions confine the sheets. The width of the band is a fraction of the axial length of the core, and that portion of the band which immediately precedes the outermost convolution on the core is caused to swivel back and forth continuously between two end positions which are mirror symmetrical to one another with reference to a plane that is normal to the axis of and halves the core. This ensures that the convolutions of the band are placed immediately next to or partially overlap each other.
Claims18
A method of temporarily storing sheets which consist of paper or the like on a relatively narrow elongated band whose leader is connected to a core having an axial length exceeding the width of the band, comprising the steps of feeding a stream of sheets onto the band;
- rotating the core so that the band is moved lengthwise and is convoluted onto the core to form a series of convolutions which confine the sheets therebetween;
- and moving successive increments of the moving band back and forth without twisting of the band and substantially in the axial direction of the core at a location which is remote from the outermost convolution so that successive convolutions are at least partially staggered with reference to each other, as considered in the axial direction of the core.
Apparatus for temporary storage of sheets which consist of paper or the like on a core between the convolutions of an elongated flexible band having a width less than the axial length of the core, comprising means for rotating the core, the band having a leader which is connected to the core so that rotation of the core results in convolution of the band therearound;
- means for feading to the band a stream of successive sheets ahead of the core, as considered in the direction of advancement of the band toward the outermost convolution on the core, so that the sheets are confined between successive convolutions of the band;
- and means for swivelling a portion of the band ahead of the outermost convolution and without twisting of the band back and forth, as considered in the axial direction of the core, so that the convolutions of the band are staggered in the axial direction of the core.
Dependencies are inferred from the claim text.