Printing press and delivery with sheet inspection station

Claim 1

A PRINTING PRESS AND DELIVERY MECHANISM THEREFOR COMPRISING A PRINTING UNIT, DELIVERY MEANS FOR RECEIVING A SHEET FROM SAID UNIT AND DELIVERING IT OVER A PILE POSITION, AND A OPERATOR''S STATION BETWEEN SAID POSITION AND SAID UNIT AND FROM WHICH AN OPERATOR CAN MAKE ADJUSTMENTS TO SAID UNIT, SAID DELIVERY MEANS INCLUDING A DELIVERY CONVEYOR HAVING SHEET-GRIPPING A MECHANISM FOR TAKING PRINTED SHEETS FROM SAID UNIT AND A DELIVERY RUN THROUGH WHICH SAID SHEET-GRIPPING MECHANISM MOVES TO DELIVER A SHEET FROM SAID PRINTING UNIT TO SAID POSITION AND A RETURN RUN MOVING IN A DIRECTION OPPOSITE TO SAID DELIVERY RUN FOR RETURNING SAID GRIPPER MECHANISM TO SAID UNIT, SAID RETURN RUN PASSING ADJACENT SAID OPERATOR''S STATION, FIRST SHEET-RELEASE MEANS FOR EFFECTING A RELEASE OF A SHEET FROM SAID CONVEYOR AT SAID PILE POSITION, MEANS FOR SELECTIVELY RENDERING SAID FIRST SHEET-RELEASE MEANS INEFFECTIVE, A SECOND DELIVERY STATION ADJACENT THE RETURN RUN OF SAID CONVEYOR AT SAID OPERATOR''S STATION AND ACCESSIBLE ON AN OPERATOR AT SAID OPERATOR''S STATION AND SECOND SHEET-RELEASE MEANS FOR EFFECTING OPERATION OF SAID GRIPPING MECHANISM INDEPENDENT OF SAID FIRST SHEET RELEASE MEANS TO RELEASE A SHEET GRIPPED THEREBY AT SAID SECOND DELIVERY STATION AS SAID GRIPPING MECHANISM MOVES THEREBY.