High speed photographic print drying machine

Claim 1

A HIGH SPEED PHOTOGRAPHIC PRINT DRYING MACHINE COMPRISING AN ELONGATED SUBSTANTIALLY AIR-TIGHT HOUSING HAVING AN ENTRANCE OPENING AND AN EXIT OPENING SPACED APART FROM ONE ANOTHER, AN ENDLESS PRINT-CARRYING BELT MOUNTED ADJACENT SAID HOUSING AND HAVING A PRINT-CONVEYING COURSE THEREOF PASSING THROUGH SAID OPENINGS, AN ENDLESS PERFORATED PRINT-HOLD-DOWN BELT MOUNTED IN SAID HOUSING WITH A COURSE THEREOF DISPOSED ADJACENT THE SAID PRINT-CONVEYING COURSE OF SAID PRINT-CARRYING BELT FOR RECEPTION OF PRINTS BETWEEN SAID BELTS, MECHANISM FOR DRIVING SAID BELTS ALONG THEIR RESPECTIVE PATHS WITH SAID ADJACENT COURSES TRAVELING AT SUBSTANTIALLY EQUAL SPEEDS, MEANS FOR SEALING SAID PRINT-CARRYING BELT COURSE AT SAID ENTRANCE AND EXIT OPENINGS AGAINST THE PASSAGE OF AIR THERETHROUGH FROM OUTSIDE SAID HOUSING, A WATER EXTRACTORCOLLECTOR DISPOSED IN SAID HOUSING ADAPTED TO COLLECT CONDENSED VAPORS THEREIN AND HAVING A DRAIN CONDUIT EXTENDING EXTERNALLY OF SAID HOUSING, A VACUUM PUMP COMMUNICATING WITH SAID DRAIN CONDUIT IN AIR-EXHAUSTING RELATIONSHIP THEREWITH, AND A HEATER MOUNTED IN SAID HOUSING FOR ACCELERATING CONVECTION THEREIN.