Stylus adjusting means

Claim 1

IN COMBINATION, A MACHINE TOOL COMPRISING: A RAIL HEAD MOVABLE ALONG A PATH OF TRAVEL; A TOOL CARRYING MEMBER CARRIED BY SAID RAIL HEAD AND MOVABLE PERPENDICULARLY TO THE PATH OF TRAVEL OF SAID RAIL HEAD; MEANS FOR MOVING SAID RAIL HEAD AND SAID TOOL CARRYING MEMBER; A TOOL CARRIED BY SAID MEMBER; A ROTATABLE TABLE ADAPTED TO SUPPORT A WORK PIECE TO BE ENGAGED BY SAID TOOL; A TEMPLATE; A TRACER MECHANISM CARRIED BY SAID TOOL CARRYING MEMBER AND INCLUDING A STYLUS OPERATIVELY ASSOCIATED WITH SAID TEMPLATE TO CONTROL THE MOVEMENT OF SAID RAIL HEAD AND SAID TOOL CARRYING MEMBER; AND STYLUS ADJUSTING MEANS FOR LOCATING SAID STYLUS WITH RESPECT TO SAID TEMPLATE, SAID MEANS INCLUDING A FIRST ADJUSTING SHAFT EXTENDING FROM SAID TRACING MECHANISM AND ADAPTED TO MOVE SAID STYLUS IN A HORIZONTAL DIRECTION, A SECOND ADJUSTING SHAFT EXTENDING FROM SAID TRACER MECHANISM SUBSTANTIALLY PARALLEL TO SAID FIRST ADJUSTING SHAFT AND ADAPTED TO MOVE SAID STYLUS IN A VERTICAL DIRECTION, A PAIR OF HOLLOW SHAFTS IN TELESCOPIC KEYED RELATION TO SAID FIRST AND SECOND ADJUSTING SHAFTS RESPECTIVELY FOR AXIAL MOVEMENT RELATIVE THERETO AND ROTATIONAL MOVEMENT THEREWITH, A GEAR BOX MOUNTED ON SAID RAIL HEAD, THE FREE ENDS OF SAID HOLLOW SHAFTS BEING RECEIVED IN SAID GEAR BOX, GEAR MEANS IN SAID GEAR BOX FOR OPERATING SAID HOLLOW SHAFT, AND INDICATOR MEANS CARRIED BY SAID GEAR BOX AND RESPONSIVE TO SAID GEAR MEANS TO INDICATE THE HORIZONTAL AND VERTICAL POSITION OF SAID STYLUS.