Milling attachment for a lathe

In combination with a lathe including a headstock, a lathe spindle assembly received within said stock, a carriage and a cross-slide;

• a milling attachment comprising:
• a base secured to said cross-slide,
• a vertical support column attached to said base and including a first interlocking element,
• a block having a second interlocking element in interfitting engagement with said first element and movable relative thereto in the vertical direction,
• a tool carrying spindle rotatably received in said block and extending horizontally along one side of said supporting column in a first direction,
• a motor mounted to said block and positioned adjacent said supporting column,
• said motor having an axis of rotation and an output shaft collinear therewith which are horizontal and extend perpendicularly to said first direction,
• gear means operatively connected between said motor output shaft and said spindle for rotating said spindle,
• vertical adjusting means associated with said supporting column means raising and lowering said block,
• locking means passing through said first and second interlocking elements clamping said second element to said first element to lock said block at a selected vertical position,
• an electric drive motor driving said lathe spindle assembly, and
• three position lock switch means associated with said headstock mechanically locking said lathe spindle assembly against rotation and electrically disabling said drive motor when in its first position, mechanically releasing said spindle assembly and electrically enabling said drive motor when in its second position, and mechanically releasing said spindle assembly and disabling said drive motor when in its third position.