Abstract:
Apparatus for processing a sheet of material such as cardboard intended for making a folding box or case, comprises a stamping plate for carrying the sheet and co-operable with a tool. The stamping plate lies on a table plate of a frame structure which has holders for releasably carrying a form which extends parallel to the table plate, and at least one bridge assembly which extends movably above the table plate. A carriage is carried on the bridge assembly and moves transversely with respect to the direction of travel thereof. The carriage carries at least one vertically movable pressure member directed towards the table plate.
Abstract:
A cover for a frying pan comprising at least one absorptive, at least partially air-pervious surface of a filter material such as filter paper, filter wadding, fabric or the like. The filter material can be provided with openings which are at least partially covered. The filter material can be secured in a circumferential ring which extends in the plane of the cover or approximately perpendicular to such plane. The cover can also be curved in the shape of a hood.
Abstract:
Methods for separating and stacking sheets of paper, cardboard and the like delivered from sheet punching machines and consisting of useful and waste portions connected together by small fillets are disclosed. The methods include supplying punched but unseparated sheets onto a severing table, severing the sheets in order to form separate stack portions and depositing these separate stack portions onto a stacking surface after withdrawing the severing table from under the stacked portions.
Abstract:
A method of severing useful lengths connected together by small fillets in a sheet of paper, pasteboard or the like, comprises applying the sheets on to a substantially non-flexible support having a contact surface of a first coefficient of friction, and then exerting on adjacent useful lengths, through forces which act in opposite directions tangentially on said adjacent useful lengths with a contact pressure by way of a second coefficient of friction exceeding the value of said first coefficient of friction, a splaying movement sufficient to destroy the fillets. Apparatus for carrying out the method may comprise a press, pressure fingers disposed at both sides of the longitudinal axis of said press, and contact surfaces having said comparatively high second coefficient of friction and at the free ends of said pressure fingers, said contact surfaces being intended for application to the useful lengths to be severed. The pressure fingers may be adapted to be moved away from one another in a plane substantially perpendicular to the principal plane of said useful lengths and the plane of separation between said useful lengths, a spring counteracting said movement of said pressure fingers as a function of downward movement of said press with increase of the spacing between the contact surfaces. Alternatively, there may be means for applying an additional and external force independent of the force applying the press to said useful lengths, said additional force being displaceable in a direction substantially tangential to the principal plane of said useful lengths.