Abstract: The present invention relates to a shaft 4 for planers, of the type where the peripheral surface has, formed along it, longitudinal recesses 5 each housing a working blade 1 and a prism-shaped locking or retaining bar 2, with a system for rapidly fixing said blades, comprising two series 7 and 8 of rollers housed in succession in a recess 6 parallel to and radially inside the recess 5 and a central operating member of the screw type 13, 14 and 15 able to exert an axial thrust on the toggles formed by the rollers at the two ends of the recess 6, by means of two thrust elements 11 and 12, so as to produce, on the locking bar 2, a radial thrust sufficient for fixing the blade 1. (FIG.

Abstract: To apply automatically a label to an object, particularly a food product, of substantially cylindrical irregular shape, the object is introduced into a loop purposely formed in a conveyor belt, with one end of the label interposed between the object and the belt. The object is enveloped almost entirely with the belt inside the loop together with the label, whereupon the conveyor belt is moved causing the rotation of the object and of the label, the ends of which label are overlapped and then glued together.

Abstract: In a cutter arbor for wood planing machines, continuous flexible non-adjustable pre-ground cutters, to be thrown away after wear, are inserted into helicoidal slots of the arbor itself. These disposable cutters are characterized in that they are thin and of constant cross section throughout their length. They are bowed and have a convex longitudinal edge and a concave longitudinal edge that are parallel to each other. The cutting edge is the convex longitudinal edge. In their undeformed condition, the cutters are uniplanar. The cutters have a cross-sectional area of about 10-15 mm.times.1-1.5 mm, and a radius of the bowed configuration of about 1 m.