Step-and-repeat machine

Claim 2

IN A MACHINE HAVING A BASE, AN EXPOSING HEAD MOUNTED ON THE BASE, AND A SUPPORT ADAPTED TO BE TRANSLATED ON THE BASE, INDEXING MEANS FOR POSITIONING THE SUPPORT WITH RESPECT TO THE BASE COMPRISING A SERIES OF SPACED HOLES HAVING SYMMETRICAL SHAPES AND A PLUNGER ADAPTED TO SELECTIVELY ENGAGE IN SAID HOLES, SAID PLUNGER HAVING A LONGITUDINAL AXIS AND A SPHERICAL END OF GREATER DIAMETER THAN THE DIAMETER OF EACH OF SAID HOLES, WHEREIN THE PLUNGER END SEATS IN A SELECTED HOLE SO THAT THE LONGITUDINAL AXIS OF THE PLUNGER IS ALIGNED WITH THE CENTER OF THE SELECTED HOLE.

Claim 3

IN A STEP-AND-REPEAT MACHINE FOR PROJECTING AN IMAGE FROM A DOCUMENT TO A SERIES OF POSITIONS ON A PHOTOSENSITIVE SHEETS: A BASE INCLUDING A FRAME, A SUPPORT FOR PHOTOSENSITIVE SHEETS, MEANS FOR HOLDING THE SHEETS TO THE SUPPORT, MEANS FOR MOVABLY MOUNTING THE SUPPORT ON THE FRAME, AND INDEXING MEANS FOR INDEXING THE MOVEMENT OF THE SUPPORT WITH RESPECT TO THE FRAME; AN EXPOSING HEAD INCLUDING AN EXPOSING SURFACE IN THE EXPOSING HEAD, LIGHT MEANS MOUNTED IN SAID EXPOSING HEAD FOR PROJECTING LIGHT THROUGH THE EXPOSING SURFACE, AND HOLDING MEANS FOR HOLDING THE DOCUMENT ON THE EXPOSING SURFACE; MEANS FOR SUPPORTING THE EXPOSING HEAD FROM THE BASE EXTENDING BETWEEN THE HEAD AND BASE INCLUDING MEANS FOR SWINGING THE HEAD BETWEEN AN EXPOSING POSITION AT WHICH THE EXPOSING SURFACE IS PARALLEL AND ADJACENT THE PHOTOSENSITIVE SHEET ANDA POSITION AT WHICH THE HEAD IS AWAY FROM THE PHOTOSENSITIVE SHEET AND THE EXPOSING SURFACE IS SUBSTANTIALLY PERDENDICULAR TO THE SHEET, AND MEANS FOR EFFECTING ROTATIONAL MOVEMENT OF THE HEAD DURING THE PORTION OF THE SWING AWAY FROM THE PHOTOSENSITIVE SHEET AND TRANSLATIONAL MOVEMENT OF THE HEAD DURING THE PORTION OF THE SWING ADJACENT THE PHOTOSENSITIVE SHEET, WHEREBY THE EXPOSING SURFACE AND DOCUMENT ARE BROUGHT INTO EXPOSING POSITION ADJACENT THE PHOTOSENSITIVE SHEET BY MOVEMENT OF THE EXPOSING SURFACE THROUGH PARALLEL PLANES.

Claim 4

IN A STEP-AND-REPEAT MACHINE FOR PROJECTING AN IMAGE FROM A DOCUMENT TO A SERIES OF POSITIONS ON A PHOTOSENSITIVE SHEETS: A BASE INCLUDING A FRAME, A SUPPORT FOR PHOTOSENSITIVE SHEETS, MEANS FOR HOLDING THE SHEETS TO THE SUPPORT, MEANS FOR MOVABLY MOUNTING THE SUPPORT ON THE FRAME, AND INDEXING MEANS FOR INDEXING THE MOVEMENT OF THE SUPPORT WITH RESPECT TO THE FRAME; AN EXPOSING HEAD INCLUDING AN EXPOSING SURFACE IN THE EXPOSING HEAD, LIGHT MEANS MOUNTED IN SAID EXPOSING HEAD FOR PROJECTING LIGHT THROUGH THE EXPOSING SURFACE, AND HOLDING MEANS FOR HOLDING THE DOCUMENT ON THE EXPOSING SURFACE; MEANS FOR SUPPORTING THE EXPOSING HEAD FROM THE BASE EXTENDING BETWEEN THE HEAD AND BASE INCLUDING MEANS FOR SWINGING THE HEAD BETWEEN AN EXPOSING POSITION AT WHICH THE EXPOSING SURFACE IS PARALLEL AND ADJACENT THE PHOTOSENSITIVE SHEET ANDA POSITION AT WHICH THE HEAD IS AWAY FROM THE PHOTOSENSITIVE SHEET AND THE EXPOSING SURFACE IS SUBSTANTIALLY PERDENDICULAR TO THE SHEET, AND MEANS FOR EFFECTING ROTATIONAL MOVEMENT OF THE HEAD DURING THE PORTION OF THE SWING AWAY FROM THE PHOTOSENSITIVE SHEET AND TRANSLATIONAL MOVEMENT OF THE HEAD DURING THE PORTION OF THE SWING ADJACENT THE PHOTOSENSITIVE SHEET, WHEREBY THE EXPOSING SURFACE AND DOCUMENT ARE BROUGHT INTO EXPOSING POSITION ADJACENT THE PHOTOSENSITIVE SHEET BY MOVEMENT OF THE EXPOSING SURFACE THROUGH PARALLEL PLANES.