Abstract: An overcasting machine for use in sewing mated insoles to uppers with gathering of the uppers relative to the insoles is disclosed wherein a step-wise driven advance disk engages the uppers and an undriven pressure disk engages the insoles at a nip area between the disks, which are spring-loaded towards each other. The advance disk drives the material of the uppers which in turn at least in part drives the material of the insoles in an advance direction during sewing. A blade is provided which extends into the nip area between the advance and the pressure disks in order to slightly separate the uppers from the insoles so that mutual slippage between them and resulting gathering of the uppers is made possible.