Early pittler capstan lathe / turret lathe

This is an early example of the turret lathe designed by Wilhelm von Pittler in 1892.

The tools, up to 16 in number, are fixed in a horizontal rotatable turret mounted on the carriage which can be advanced along the bed of the machine by turning a hand-wheel. The axis of the turret is parallel with but below the work spindle which is in line with the centre of the uppermost tool hole. A disc with the same number of holes as the turret contains for holding the tools, is fixed at the other end of the turret spindle. In these holes rods are clamped which act as stops to limit the travel of the tools. When the turret is advanced the corresponding rod comes up against a stop which is bolted in a longitudinal slot in the lathe bed. The rods are adjusted so that each tool travels to the required limit.

When the turret is withdrawn at the end of a cut, it is automatically indexed so that the next tool is brought to the cutting position. The automatic mechanism can be disengaged and the turret set manually when required.

The lathe is capable of taking work up to 7 inches diameter. It is also fitted with a collet operated by a sleeve connected with a hand lever on the headstock and is suitable for turning bar stock.