GB744661A - An improvement in or relating to fabric-steaming machines - Google Patents

Abstract

In a fabric-steaming machine of the kind in which the fabric to be treated is wound, together with a wrapper, on to a perforated steaming roller and is then after treatment wound off the roller while the wrapper is simultaneously wound, together with a further fabric to be treated, on to a second perforated steaming roller, the two rollers are driven from a common source through a differential gear in such a <PICT:0744661/IV(c)/1> manner that the surface speeds of the fabrics on the two rollers are at all times maintained equal to one another. The motor c drives a worm wheel through a worm gear, the worm wheel being fixed to the casing of a differential gear one of the output shafts of which is shown at h. A sprocket h1 mounted on the shaft h is coupled by a chain h3 to a sprocket mounted on a sleeve running freely on the shaft g. The sleeve carries a further sprocket i1 coupled to sprocket j2 which in turn drives the sprocket j2 mounted on the shaft b carrying one steaming roller. The other output from the differential gear, which is not visible in the Figure, is coupled to a sprocket rigidly fixed upon the shaft g which is itself coupled through the sprockets g1 and g2 with the shaft a carrying the other perforated roller. The sleeve mounted to run freely upon the shaft g may be clutched to that shaft in which case the differential gear ceases to be operative. Similarly either roller may be de-clutched from its respective shaft a or b so that either roller may be driven independently.