Abstract:
A book cover feeder to supply book covers to a production unit of a book production line. The feeder has a guiding side and a driving side for conveying the book covers in a production direction. The book cover feeder comprising includes a feeding device onto which book covers of a single format are deposited singly, in a scaled formation or in a stack formation. A magazine is arranged to receive the covers from the feeding device. The magazine has a stacking shaft. A separating device is operatively arranged relative to the magazine. The feeding device, the cover magazine and the separating device are embodied integrally or adjoining each other. The feeding device includes, on the guiding side and/or the driving side, a side guiding device that is divided into multiple sections arranged one behind the other in the production direction.
Abstract:
Disc-like filter elements each comprising a base plate secured at its centre to a hollow perforate rotatable filtrate shaft, and a filter fabric above the base plate and joined thereto at its outer margin, are each provided with a rim extending beyond the filter fabric to retain the filter aid and/or residue during filtration but to permit it to be centrifuged off afterwards. In Fig. 2 (not shown), the base plate is uniformly-inclined upwards fairly steeply to its outer edge, and the rim is merely a coplanar extension beyond the fabric edge, the fabric being horizontal. In Fig. 1 (not shown), the rim is upturned. In Figs 3 to 5 (not shown), separate rim portions (16) are hinged to a polygonal base plate, are urged upwards by a surrounding endless tension spring (19), and have their vertical edges in contact during filtration. During centrifuging afterwards, they are forced outwards and downwards by the radially-moving residue &c. The surrounding spring may be replaced by individual radial springs, extending from the shaft, above the filter element to each rim portion.