Abstract: A rose engine apparatus is disclosed for attaching to a lathe having a lathe bed and a headstock with a rotatable spindle. The apparatus includes a pivotal attaching means for pivotally attaching the headstock with the lathe bed. At least one cam is selectively fixable to a cam attachment means fixed to the spindle of the headstock, each cam having a continuous, variable radius along a peripheral edge thereof. A cam roller is fixed with the lathe bed so as to make contact with the peripheral edge of a selected cam. A biasing spring urges the selected cam against the roller means, such that the headstock pivots with respect to the lathe bed as a function of the variable radius of the selected cam, as the spindle and workpiece rotates. As such, cutting operations can be performed on the workpiece that correspond to the variable radius of the selected cam. The apparatus may be bypassed to allow conventional operation of the lathe without removing the apparatus therefrom.

Abstract: A process and apparatus are provided for manufacturing cardboard tubes with incorporated closure for packing or sending articles or documents and tubes obtained by implementing this process. The process comprises the continuous formation of a cardboard tube on the rotary mandrel of a spiralling machine and cutting the tube into tube elements discharged by the machine. This cut out is provided in the form of a sinusoid with provision of appropriate fold lines. Thus tube elements are obtained, without waste of material, whose ends have two opposite tongues which may be folded back, the adjacent ends of two successive tube elements being offset by 90.degree..

Abstract: Apparatus is disclosed for cutting open a blow-molded container such as a refuse can. A pair of knife blades are pivotally mounted to a knife which is pivotal about an axis orthogonal to the axis of pivot of the blades. The knife has a pair of cam followers for guiding it around the container by following a cam track conforming to the shape of the article.