heating an advancing synthetic filament yarn which includes a rotating godet casing which is cup shaped and is mounted over a stationary tubular support in the space formed between the godet casing and the support a radiation heater is arranged on the circumference of the support and the radiation heater is formed by a heating coil which is wound about the support with a plurality of windings the coil has over its length different spacings between adjacent windings to provide non uniform heating along the length of the casing and thereby compensate for the non uniform cooling of the casing which naturally occurs application_number US 903398 A description fig1 and 2 are each a schematic axially sectioned view of a godet unless otherwise specified the following description will apply to both figures the godet is mounted on a stationary godet support frame 2 and it includes a drive shaft 3 which is mounted in cantilever fashion to the support frame by bearings 11 13 so as to rotate about the axis of the shaft a tubular support 4 is fixedly mounted to the support frame so as to be coaxial with and radially spaced from the drive shaft 3 the godet further includes a casing 1 which includes a tubular outer wall and an end wall 25 in its center the end wall 25 is provided with a collar 9 which is coaxial with the outer wall of the casing 1 through end wall 25 and collar 9 a bore 10 extends which flares out conically at the end of the collar inserted in formfitting manner into bore 10 is the free end of the drive shaft 3 which is in the form of a cone.