Boring mill

Claim 1

IN A BORING MILL HAVING A ROTATABLE TABLE FOR SUPPORTING A CAR WHEEL OR THE LIKE, A HOLLOW BORING BAR POSITIONED IN A PLANE TRANSVERSE TO SAID TABLE FOR ENGAGEMENT WITH SAID CAR WHEEL, MEANS ASSOCIATED WITH SAID BORING BAR FOR ADVANCING AND RETRACTING SAID BORING BAR WITH RESPECT TO SAID CAR WHEEL, A PLURALITY OF TOOLS SLIDABLY MOUNTED FOR RADIAL ADJUSTMENT IN SAID BORING BAR, MEANS RECIPROCALLY MOUNTED IN SAID BORING BAR AND ENGAGEABLE WITH SAID TOOLS FOR ADVANCING AND RETRACTING SAID TOOLS RADIALLY OF THE BORING BAR, A MOTOR MOUNTED IN SAID BORING BAR, DRIVING MEANS CARRIED BY SAID MOTOR AND ENGAGEABLE WITH SAID RECIPROCALLY-MOUNTED MEANS, FIRST FEELER MEANS ADJUSTABLE TO A DIAMETER OF AN AXLE TO WHICH A WHEEL IS TO BE FITTED, FIRST RESPONSIVE MEANS RESPONSIVE TO THE POSITION OF SAID FEELER MEANS, SECOND FEELER MEANS, MEANS FOR MOVING SAID SECOND FEELER MEANS INTO CONTACT WITH ONE OF SAID TOOLS, SECOND RESPONSIVE MEANS RESPONSIVE TO THE POSITION OF SAID SECOND FEELER MEANS AND COOPERATING WITH SAID FIRST RESPONSIVE MEANS TO GAUGE THE RADIAL POSITION OF SAID ONE TOOL TO BORE A WHEEL TO A DIAMETER ESTABLISHED BY SAID FIRST RESPONSIVE MEANS, AND CONNECTING MEANS BETWEEN SAID MOTOR AND SAID SECOND RESPONSIVE MEANS TO ADVANCE SAID TOOLS RADIALLY OF SAID BORING BAR TO THE POSITION ESTABLISHED BY SAID FIRST RESPONSIVE MEANS.