Abstract: A machine for separating an oil film from a supporting liquid elevates the oil from its original position with an endless belt, and then transfers the oil from the belt to a rotating disc from which it is wiped into a drainage trough. The belt system is driven from the disc, and is constructed as an attachment to a self-contained disc machine capable of functioning without the belt system when the disc can intersect the surface of the liquid. The unit is thus adaptable to installations where the liquid level is far below the rim of the accumulating tank where the machine is mounted, and where there is substantial variation in the liquid level.