Magazine spindle drilling machine

Claim 1

A MAGAZINE SPINDLE DRILLING MACHINE COMPRISING, IN COMBINATIN, A MACHINE FRAME; TOOL SPINDLE DRIVING MEANS LOCATED AT A WORKING STATIN OF THE MACHINE; A SPINDLE MAGAZINE MOUNTED FOR MOVEMENT ON SAID MACHINE FRAME PAST THE WORKING STATIN TRANSVERSELY OF THE AXIS OF TOOL ROTATION AND OF THE DIRECTION OF TOOL FEED, SIAD MAGAZINE BEING FORMED WITH A PLURALITY OF UNIFORMLY SPACED SPINDLE DEVICE COMPARTMENTS EACH EXTENDING PARALLEL TO THE DIRECTION OF TOOL FEED; A PLURALIOTY OF SPINDLE DEVICES INTER CHANGEABLY INSERTABLE INTO THE COMPARTMENT SAID MAGAZINE FOR SELECTED MOVEMENT BY SAID MAGAZINE INTO THE WORKING STATIN OF THE MACHINE FOR COUPLIN TO SAID DRIVING MEANS; EACH SPINDLE DEVICE INCLUDING A TOOL SPINDLE ROATABLE ABOUT THE AXIS PARALLEL TO THE AXIS OF TOOL ROTATION AND TRANSVERSE TO THE DIRECTION OF MAGAZINE MOVEMENT; COOPERATING GUIDING AND POSITIONING MEANS EXTENDING LONGITUDINALLY OF SAID COMPARTMENTS AND OF SAID SPINDLE DEVICES, WHEREBY EACH SPINDLE DEVICE IS SLIDABLY INSERTABLE INTO AND REMOVABLE FROM THE MAGAZINE IN ANY POSITIN OF THE LATTER; FEED SLIDE MEANS JUXTAPOSED WITH EACH SPINDLE DEVICE MOVED INTO THE WORKING POSITIN, EACH MAGAZINE COMPARTMENT HAVING A LONGITUDINALLY EXTENDING OPENING TO INDEX AND CLAMP EACH SPINDLE FOR JUSTAPOSITION WITH SAID FEED SLIDE MEANS, INDEXING AND CLAMPING MEANS OPOERABLE TO INDEX AND CLAMP EACH SPINDLE DEVICE, WHEN AT THE WORKING STATION, TO SAID FEED SLIDE MENS FOR MOVEMENT AS A RIGID UNIT WITH THE LATTER; SAID MEAND FOR MOVEMENT AS A RIGID UNIT WITH THE LATER; SAID ROCATION IN SAID FRAME PARALLEL TO THE DIRECTION OF TOL FEED TO MOVE THE RESPECTIVE SPINDLE DEVICE BODILY OUT OF THE MAGAZINE AND AXIALY INTO THE WORK ENGAGEING POSITION, AND FOR RETURN OF THE REMOVED SPINDLE DEVICE INTO ITS COMPARTMENT IN THE MAGAZINE WHERBY, WHEN IN THE WORKING POSITION, EACH SPINDLE DEVICE IS SUPPORTED SOLELY BY SAID FEED SLIDE MEANS; AND INCLUDING SPINDLE MOVEMENT CONTROL DEVICES ON SAID FRAME; INDIVIDUALLY ADJUSTABEL SPINDLE MOVEMENT SETTING ELEMENTS OF EACH SPINDLE DEVICE COOPERABLE WITH RESPECTIVE CONTROL DEVICES WHEN THE RESPECTIVE SPINDLE DEVICE IS MOVED INTO THE WORKING STATION; APRESELECTING GEAR FOR CONTROLLING THE SPEED AND DIRECTIN OF ROTATION OF THE TOOL SPINDLE, AND THE FEEDING AND RETRACTION OF THE TOOL SPINDLE AS WELL AS THE FEEDING AND RETRACING SPEEDS; SAID SPINDLE MOVEMENT CONTROL DEVICES INCLUDING A TAPPING DEPTH SETTING DEVICE CONTROLLING SAID PRESELECTING GEAR FOR A TAPPING OPERATION; SAID SPINDLE MOVEMENT SETTING ELEMENTS ON EACH RESPECTIVE SPINDLE DEVICE INCLUDING A TAPPING DEPTH SETTING ELEMENT COOPERABLE WITH SAID LAST-NAMED SETTING DEVICE UPON MOVEMENT OF THE RESPECTIVE SPINDLE DEVICE INTO THE WORKING STATION; SAID TAPPING DEPTH SETTING DEVICE, UPON AND ATTAINMENT OF THREADED DEPTH CORRESPONDING TO THE SETTING OF SAID TAPPING DEPTH SETTING ELEMENT, OPERATING THROUGH SIA PRESELECTING GEAR TO REVERSE THE DIRECTION OF ROTATION OF THE TOOL SPINDLE AND TO RETRACT THE LATTER AT THE FEED SPEED ESTABLISHED BY THE SETTING OF SAID SETTING ELEMENT.