Electric drill attachment

Claim 1

A UNIVERSAL ATTACHMENT FOR A HAND DRILL WHICH HAS A HOUSING INCLUDING IN COMBINATION A SUPPORT BRACKET HAVING FIRST AND SECOND SPACED GENERALLY V-SHAPED WALL PORTIONS FOR ENGAGEMENT WITH THE DRILL HOUSING, A CLAMPING BAND ENGAGEABLE WITH SAID SUPPORT BRACKET BETWEEN SAID FIRST AND SECOND V-SHAPED WALL PORTION AND ADAPTED TO EXTEND AROUND THE DRILL HOUSING TO HOLD SAID SUPPORT BRACKET IN POSITION, A GUIDE EXTENSION EXTENDING FROM AND INTREGRAL WITH SAID SUPPORT BRACKET, A BASE MEMBER HAVING FIRST AND SECOND END PORTIONS, A PIVOT HINGE AT SAID FIRST END PORTION OF SAID BASE, A CONNECTING MEMBER HAVING FIRST AND SECOND END PORTIONS, SAID PIVOT HINGE PIVOTALLY CONNECTING SAID FIRST END PORTION OF SAID BASE MEMBER TO SAID FIRST END PORTION OF SAID CONNECTNG MEMBER, WALL MEANS DEFINING A GUIDEWAY IN SAID SECOND END PORTION OF SAID CONNECTING MEMBER, SAID GUIDE EXTENSION RESIDING IN SAID GUIDEWAY AND PERMITTING LONGITUDINAL ADJUSTMENT OF SAID BASE RELATIVE TO A HAND DRILL, A CLAMPING MECHANISM FOR HOLDING SAID GUIDE EXTENSION AND CONNECTING MEMBER IN A FIXED POSITION RELATIVE TO EACH OTHER AND COMPRISING A BLOCK MEMBER HAVING A THREADED OPENING AND ENGAGEABLE WITH SAID GUIDE EXTENSION, A THREADED MEMBER RESIDING IN SAID THREADED OPENING AND ENGAGEABLE WITH SAID CONNECTING MEMBER WHEREBY SAID GUIDE EXTENSION AND CONNECTING MEMBER MAY BE SQUEEZED TOGETHER, A HANDLE CONNECTED TO SAID THREADED MEMBER, SAID BASE MEMBER HAVING A GENERALLY FLAT BOTTOM SURFACE AND HAVING A WALL MEANS DEFINING A PLURALITY OF WINDOW-LIKE EFFECTS IN A DIRECTION NORMAL TO SAID FLAT BOTTOM SURFACE, A PORTION OF SAID WALL MEANS DEFINING ONE OF SAID WINDOW-LIKE EFFECTS BEING CUT AWAY AT SAID FIRST END PORTION OF SAID BASE TO PROVIDE FOR THE FREE ESCAPE OF CHIPS CUT BY A TOOL IN THE DRILL, A HANDLE ON SAID SECOND END PORTION OF SAID BASE, SECURING LINK FOR ADJUSTABLY LOCATING THE ANGULAR POSITION OF SAID BASE RELATIVE TO SAID CONNECTING MEMBER AND TO A DRILL TO WHICH THE CONNECTING MEMBER IS ADAPTED TO BE ATTACHED, SAID SECURING LINK COMPRISING FIRST AND SECOND END PORTIONS, FIRST PIVOT MEANS CONNECTING SAID FIRST END PORTION OF SAID SECURING LINK TO SAID BASE, WALL MEANS DEFINING A SLOT ING SAID SECOND END PORTION OF SAID SECURING LINK, A LOCK SCREW EXTENDING THROUGH SAID SLOT AND INTO A COOPERATING THREADED OPENING IN SAID CONNECTING MEMBER TO FIX THE POSITION OF SAID BASE, AN ATTACHMENT GUIDE FOR MOVING SAID ATTACHMENT PARALLEL TO A GIVEN GUIDE SURFACE, SAID ATTACHMENT GUIDE COMPRISING AN ARM SECURED TO SAID BASE AND EXTENDING IN A DIRECTION GENERALLY TRANSVERSE TO SAID BASE, FIRST AND SECOND SPACED ATTACHMENT GUIDE SURFACES GENERALLY PARALLEL TO THE EXTENT OF SAID BASE AND ADAPTED TO ENGAGE A GIVEN GUIDE SURFACE TO MOVEMENT OF SAID ATTACHMENT.