Abstract: A plant for the heat treatment of metallic elements (E) includes: at least a chamber (3) for containing the metallic elements (E) having at least one access opening (A1); a heater (4) of the chamber (3), operating on the chamber (3) for bringing the same at a predetermined temperature; a conveyor (15), connected with a respective actuator and acting on the metallic elements (E) for transferring these latter at the exiting and/or entering with respect to the chamber (3). The conveyor (15) has been positioned outside the chamber (15) during the functioning of the plant (1).

Abstract: A plant for the heat treatment of metallic elements (E) includes: at least a chamber (3) for containing the metallic elements (E) having at least one access opening (A1); a heater (4) of the chamber (3), operating on the chamber (3) for bringing the same at a predetermined temperature; a conveyor (15), connected with a respective actuator and acting on the metallic elements (E) for transferring these latter at the exiting and/or entering with respect to the chamber (3). The conveyor (15) has been positioned outside the chamber (15) during the functioning of the plant (1).

Abstract: A plant for the heat treatment of metallic elements (E) includes: at least a chamber (3) for containing the metallic elements (E) having at least one access opening (A1); a heater (4) of the chamber (3), operating on the chamber (3) for bringing the same at a predetermined temperature; a conveyor (15), connected with a respective actuator and acting on the metallic elements (E) for transferring these latter at the exiting and/or entering with respect to the chamber (3). The conveyor (15) has been positioned outside the chamber (15) during the functioning of the plant (1).

Abstract: A plant for the heat treatment of metallic elements (E) includes: at least a chamber (3) for containing the metallic elements (E) having at least one access opening (A1); a heater (4) of the chamber (3), operating on the chamber (3) for bringing the same at a predetermined temperature; a conveyor (15), connected with a respective actuator and acting on the metallic elements (E) for transferring these latter at the exiting and/or entering with respect to the chamber (3). The conveyor (15) has been positioned outside the chamber (15) during the functioning of the plant (1).

Abstract: A yarn feeder device for feeding yarns having elastic characteristics includes a feeder roll carried by a drive shaft which is journalled for rotation between a pair of shoulders. The feeder roll has a peripheral surface engaged by each peripheral surface of a pair of pressure rolls with yarn being fed tangentially therebetween. A pair of arms is pivoted to one of the shoulders and each arm rotatably carries one of the pressure rolls. A drive wheel is nonrotatably, but axially slidably connected to the drive shaft and is adapted for driving engagement with a rotatable drive disk. The drive wheel is also shiftable by a fork member along the drive shaft to vary the point of driving contact between the drive wheel and the drive shaft to thereby control the speed of the feeder roll.

Abstract: A needle dial for single-cylinder circular hosiery knitting machines for producing ribbed knitting includes a disc having a plurality of radially extending angularly equidistantly spaced dividing walls. Each adjacent pair of dividing walls sets-off therebetween a radially extending groove, and each groove is defined by a bottom wall of the disc and one wall each of adjacent pairs of the dividing walls. The one walls have upper wall portions in generally spaced parallel relationship to each other and to a longitudinal axis of the groove defined thereby. A lower radially outermost wall portion of one of each of the one walls defining each groove is circumferentially off-set from a radially innermost wall portion thereof and from its associated longitudinal axis thereby being adapted to receive therein a distal arch of an associated composite needle.

Abstract: A composite dial needle for a single-cylinder circular hosiery knitting machine for producing ribbed knitting which includes a needle and a jack each being defined by a body having a front part, middle part, and a rear part with the bodies in adjacent side-by-side relationship, a drive butt projecting transversely of each middle part, the jack drive butt being at least in part defined by a front edge, the jack front part being appreciably narrower in size than the jack rear part, the jack front part being at least in part defined by an uppermost longitudinal edge disposed below an uppermost longitudinal edge of the jack rear part, a guide part spaced above the jack front part and projecting in a longitudinal direction away from the jack rear part, and the guide part having a lowermost edge spaced from the jack front part uppermost longitudinal edge and defining with a rear portion of the latter a slot opening in a direction away from the jack rear part.