Copying appliances

Claim 1

A COPYING APPARATUS COMPRISING A HOUSING WITH A RADIATION-PERMEABLE WALL FORMING A SUPPORTING SURFACE FOR AN ORIGINAL AND A COPY SHEET; A SOURCE OF RADIATION IN SAID HOUSING; A COVER MOUNTED OUTSIDE SAID HOUSING FOR MOVEMENT TOWARD AND AWAY FROM SAID SUPPORTING SURFACE; ACTUATING MEANS ON SAID HOUSING FOR MOVING SAID COVER FROM AN OUTWARDLY SWUNG OPEN POSITION TO A CLOSED POSITION PROXIMAL TO SAID SUPPORTING SURFACE PREPARATORILY TO ENERGIZATION OF SAID SOURCE; AND GUIDE MEANS FOR SWINGING SAID COVER FROM SAID OPEN POSITION INTO AN INTERMEDIATE POSITION PARALLEL TO SAID SUPPORTING SURFACE PRIOR TO MOVEMENT OF SAID COVER INTO SAID CLOSED POSITION UPON OPERATION OF SAID ACTUATING MEANS, SAID GUIDE MEANS INCLUDING A WALL MEMBER OF SAID HOUSING WITH A GUIDE SLOT HAVING A STRAIGHT PORTION PERPENDICULAR TO SAID SUPPORTING SURFACE TERMINATING IN A BEND, A CARRIAGE SLIDABLE ALONG SAID GUIDE SLOT, AN ARM ON SAID COVER HAVING A FIRST PIN TRAVERSING SAID CARRIAGE AND SAID GUIDE SLOT, A SECOND PIN ON SAID ARM RECEIVED IN SAID GUIDE SLOT IN SPACED RELATIONSHIP WITH SAID FIRST PIN, AND LINK MEANS CONNECTING SAID CARRIAGE WITH SAID ACTUATING MEANS FOR MOVING SAID CARRIAGE WITH SAID FIRST PIN ALONG THE STRAIGHT PORTION OF SAID GUIDE SLOT, SAID SECOND PIN ENTERING SAID BEND IN A LIMITING POSITION OF SAID CARRIAGE FOR TILTING SAID ARM AND SWINGING SAID COVER OUTWARDLY UPON A RETURN OF SAID COVER TO SAID OPEN POSITION.