Recording machine for a sheet record having two opposite recording faces

Claim 1

IN A RECORDING MACHINE HAVING A FRAME, THE COMBINATION COMPRISING A ROTATABLE DRUM MOUNTED IN SAID FRAME AND HAVING AN ENDLESS SURFACE ABOUT WHICH A FLEXIBLE SHEET RECORD IS ADAPTED TO BE WRAPPED THROUGH SUBSTANTIALLY ONE COMPLETE REVOLUTION, SAID RECORD HAVING A STRIP ADAPTED TO BE FOLDED WITH RESPECT TO ITS LEADING EDGE, SAID SURFACE HAVING A LONGITUDINAL SLOT FOR FIRMLY RECEIVING SAID STRIP, SAID RECORD HAVING TWO OPPOSITE RECORDING FACES AND BEING NORMALLY URGED BY ITS INHERENT RESILIENCY TO KEEP FLAT, WRAPPING MEANS MOUNTED ON SAID FRAME AND SPRING URGED TO CONTACT SAID SURFACE FOR FOLDING SAID RECORD ALONG SAID LEADING EDGE AND WRAPPING SAME ABOUT SAID SURFACE DURING THE ROTATION THEREOF, A RECORDING HEAD MOUNTED ON SAID FRAME FOR TRAVELLING PARALLEL TO THE AXIS OF SAID DRUM ACROSS AN EXPOSED FACE OF SAID RECORD, DRIVING MEANS FOR SELECTIVELY ROTATING SAID DRUM IN FORWARD AND RETURN DRIVE, AND MEANS MOUNTED ON SAID FRAME AT EITHER END OF THE TRAVEL OF SAID HEAD AND CONTROLLED BY SAID HEAD UPON COMPLETION OF ITS TRAVEL IN EITHER DIRECTION FOR CAUSING SAID DRIVING MEANS TO REVERSE SAID DRIVE, WHEREBY WHEN UPON COMPLETION OF SAID TRAVEL THE TRAILING EDGE OF SAID RECORD HAS MOVED PAST SAID WRAPPING MEANS THE RECORD BY ITS RESILIENCY UNWRAPS FROM THE DRUM AND FINALLY UNFOLDS ALONG SAID LEADING EDGE AND IN THE FURTHER COURSE OF THE ROTATION THEREOF IS CAUSED BY SAID WRAPPING MEANS TO BE FOLDED IN AN OPPOSITE DIRECTION ALONG SAID LEADING EDGE AND TO BE WRAPPED AGAIN THROUGH ONE REVOLUTION TO EXPOSE THE OTHER FACE TO SAID RECORDING HEAD.