Photocopy machine

Claim 1

IN A PHOTOCOPY MACHINE FOR CARRYING OUT THE DIFFUSION-TRANSFER PROCESS, AND WHICH INCLUDES A PAIR OF WRINGER ROLLERS FOR PRESSING AN EXPOSED NEGATIVE SHEET AND A POSITIVE SHEET TOGETHER FOR TRANSFERRING AN IMAGE FROM SUCH A NEGATIVE SHEET TO SUCH POSITIVE SHEET, OF A DEVELOPER FLUID AND HAVING (A) A TROUGH ASSEMBLY ADAPTED TO CONTAIN A QUANTITY (1) AND ECTRANCE SIDE REMOTE FROM SAID ROLLERS, AND (2) AN EXIT SIDE ADJACENT TO SAID ROLLERS, (B) SAID TROUGH ASSEMBLY INCLUDING (1) A MAIN BODY PORTION, AND (2) A REMOVABLE BOTTOM MEMBER, (C) SAID MAIN BODY PORTION HAVING BOTTOM WALL, (1) EXTENDING DOWNWARDLY AND INWARDLY FROM SAID ENTRANCE SIDE AND (2) UPWARDLY AND OUTWARDLY TO SAID EXIT SIDE, (D) MEANS FOR SUPPORTING SAID REMOVABLE BOTTOM MEMBER WITHIN SAID MAIN BODY PORTION N UPWARDLY SPACED RELATION TO SAID BOTTOM WALL, IN POSITION TO PROVIDE A PASSAGEWAY THEREBETWEN EXTENDING FROM SAID ENTRANCE SIDE TO SAID EXIT SIDE, FOR FEEDING SUCH A POSITIVE SHEET FROM SAID ENTRANCE SIDE INTO OPERATIVE POSITION BETWEEN SAID ROLLERS, (E) SAID SUPPORTING MEANS COMPRISING (1) RECESSING IN SAID BODY COMPRISING (2) OFFSET PORTIONS ON SAID REMOVABLE BOTTOM MEMBER AND DISPOSED IN RESPECTIVE ONES ON SAID RECESSES, (F) SAID REMOVABLE BOTTOM MEMBER BEING ADAPTED TO HOLD THE ENTIRE SAID QUANTITY OF DEVELOPER FLUID THEREIN, WHEREBY SAID PASSAGEWAY IN DISPOSED BELOW ALL OF THE DEVELOPER FLUID IN SAID TROUGH AND WILL KEEP THE POSITIVE SHEET BY AS IT PASSES THERETHROUGH, (G) AN OPENING AT THE ENTRANCE SIDE OF SAID TROUGH THROUGH WHICH SAID POSITIVE SHEET MAY BE FED INTO SAID PASSAGEWAY, (H) A SECOND OPENING AT THE SAID ENTRANCE SIDE OF SAID TROUGH THROUGH WHICH SUCH AN EXPOSED NEGATIVE SHEET MAY BE FED FROM SAID ENTRANCE SIDE THROUGH THE DEVELOPING FLUID THEREIN ON TOP OF THE SAID BOTTOM MEMBER INTO OPERATIVE ENGAGEMENT WITH SAID POSITIVE SHEET BETWEEN SAID ROLLERS TO THEREBY TRANSFERE SUCH AS IMAGE FROM SAID NEGATIVE SHEET TO SAID POSITIVE SHEET.