Routing machine

Claim 1

IN A MACHINE FOR ROUTING OUT A RECESS IN A JAMB PIECE OF A DOOR FRAME FOR RECEIVING A LOCK STRIKE PLATE OF THE TYPE HAVING A WELL SPACED INWARDLY FROM THE EDGES OF SAID PLATE AND PROJECTING TO ONE SIDE OF THE LATTER; (A) A RIGID FRAME; (B) A ROTARY ROUTING CUTTER FOR ROUTING OUT SAID RECESS; (C) SUPPORTING MEANS ON SAID FRAME SUPPORTING SAID CUTTER FOR BODILY MOVEMENT THEREOF LATERALLY RELATIVE TO ITS AXIS OF ROTATION WITHIN THE CONFINES OF OUTLINES RESPECTIVELY CORRESPONDING TO THE OUTSIDE OUTLINES OF SAID LOCK STRIKE PLATE AND THE WELL THEREIN, AND FOR AXIAL DOWNWARD MOVEMENT A FIRST DISTANCE SUBSTANTIALLY EQUAL TO THE THICKNESS OF SAID LOCK STRIKE PLATE AND A SECOND DISTANCE SUBSTANTIALLY EQUAL TO THE DEPTH OF SAID WELL WHEN SAID JAMB PIECE IS HELD IN A PREDETERMINED STATIONARY POSITION RELATIVE TO SAID CUTTER IN A POSITION FOR CUTTING BY SAID CUTTER DURING SAID MOVEMENT OF THE LATTER; (D) HOLDING MEANS ON SAID FRAME ACTUATABLE FOR MOVEMENT FOR RELEASABLY HOLDING SUCH JAMB PIECE IN SAID PREDETERMINED POSITION AND FOR RELEASING SAID JAMB PIECE; (E) SEPARATE GUIDE MEANS RESPECTIVELY RIGID RELATIVE TO SAID ROUTING CUTTER AND SAID FRAME FOR RESPECTIVELY RESTRICTING SAID LATERAL MOVEMENT OF SAID CUTTER TO WITHIN THE LIMITS OF THE OUTLINE OF SAID PLATE AND FOR RESTRICTING SAID LATERAL MOVEMENT TO WITHIN THE LIMITS OF THE OUTLINE OF SAID WELL; (F) MEANS ON SAID FRAME FOR RESTRICTING SAID AXIAL MOVEMENT OF SAID CUTTER A DISTANCE SUBSTANTIALLY EQUALLY TO SAID FIRST DISTANCE WHEN SAID LATERAL MOVEMENT OF SAID ROUTING CUTTER IS RESTRICTED TO WITHIN THE OUTLINE OF SAID PLATE, AND (G) MEANS ON SAID FRAME FOR RESTRICTING SAID AXIAL MOVEMENT OF SAID CUTTER A DISTANCE SUBSTANTIALLY EQUAL TO SAID SECOND DISTANCE WHEN SAID LATERAL MOVEMENT OF SAID ROUTING CUTTER IS RESTRICTED TO WITHIN THE OUTLINE OF SAID WELL.