Roughing machine having tool position adjusting mechanism

Abstract From the Canadian patent

A roughing machine for roughing the margin of an upper of a shoe assembly comprised of a last having an insole on its bottom and the upper mounted thereon with the upper margin lying against and being secured to the insole periphery. The machine is so constructed as to enable a roughing tool to engage the upper margin a relatively great or a relatively small distance inwardly of the periphery of the shoe assembly bottom during movement of the upper margin past the roughing tool and the machine incorporates an automatically operable mechanism for placing the roughing tool in one or the other of these positions.