Forward and reverse paper feed means in selective printing machines

Claim 1

IN A PRINTER OF THE TYPE HAVING TYPE ELEMENTS WITH A TYPE FACE FOR EACH CHAACTER TO BE PRINTED, MEANS FOR ADJUSTING THE PLURALITY OF TYPE ELEMENTS RELATIVE TO A PRINTING STATION, A PLATEN ROLL AT THE PRINTING STATION, A WEB OF PAPER LOOPED AROUND SAID PLATEN ROLL, MEANS FOR MOUNTING THE TYPE ELEMENTS AND PLATEN ROLL FOR RELATIVE MOVEMENT TO PRINT AN IMPRESSION FROM THE TYPE ELEMENTS ONTO THE WEB AND DRIVING MEANS FOR THE TYPE ELEMENT ADJUSTING MEANS AND FOR RELATIVELY MOVING THE TYPE ELEMENTS AND PLATEN ROLL IN TIMED RELATION, THE COMBINATION WITH SAID ELEMENTS OF SAID PRINTER OF AN IMPROVED PAPER FEED AND GAINER MECHANISM COMPRISING A TAKE-UP REEL CONNECTED TO ONE END OF THE LOOP OF PAPER FOR POSITIVELY MOVING IT IN ONE DIRECTION, A SPRING ACTUATED TAKE-UP MEANS CONNECTED TO THE OTHER END OF THE LOOP OF PAPER FOR MOVING IT IN THE OPPOSITE DIRECTION, A DRIVE SHAFT CONNECTED TO THE TAKE-UP REEL, A PAIR OF ONE-WAY CLUTCHES MOUNTED ON SAID SHAFT, ONE OF SAID ONE-WAY CLUTCHES BEING MOUNTED TO GRIP AND ROTATE THE SHAFT WHEN TURNED CLOCKWISE AND RELEASE THE SHAFT WHEN TURNED COUNTERCLOCKWISE, THE OTHER OF SAID CLUTCHES CONTROLLING AND LIMITING THE ROTATION OF THE SHAFT WHEN TURNED COUNTERCLOCKWISE, A MEMBER MOUNTED TO OSCILLATE ON AN AXIS ECCENTRIC TO THE AXIS OF SAID DRIVE SHAFT, AND SAID MEMBER HAVING A SLIDING CONNECTION WITH THE ONE-WAY CLUTCHES TO OSCILLATE THE CLUTCHES WHEREBY TO TURN SAID SHAFT AND WEB OF PAPER THROUGH A GREATER ARC IN ONE DIRECTION THAN IT IS MOVED IN THE OTHER DIRECTION.