Apparatus and process for the liquid gate printing of a photographic film

Abstract

Abstract A DEVICE IS PROVIDED FOR THE LIQUID GATE PRINTING OF PHOTOGRAPHIC NEGATIVES. THE DEVICE INCLUDES A LIQUID GATE INTO WHICH FLUID IS SUPPLIED IN SUCH A MANNER THAT THE FLUID FLOWS FROM THE BOTTON TO THE TOP OF THE GATE. THE FLOW RATE AND LEVEL OF THE FLUID IS CONTROLLED BY ADJUSTING THE HEIGHT OF A LIQUID SOURCE RELATIVE TO THE GATE. IN ADDITION, A VALVE IS EMPLOYED FOR CONTROLLING THE INPUT OF THE FLUID INTO THE GATE AND STILL FUTHER IT IS POSSIBLE TO EXERCISE A CONTROL BY MEANS OF CONTROLLING THE ESCAPE OF FLUID FROM THE ENTRANCE OPENING INTO THE GATE. A CLOSED FLUID CIRCUIT IS PROVIDED BY MEANS OF WHICH OVERFLOW FROM THE TATE IS RETURNED TO A RESERVOIR FROM WHICH THE FLUID IS PUMPED INTO THE OPEN VESSEL, THE HEIGHT OF WHICH IS CONTROLLED RELATIVE TO THAT OF THE GATE. A RECEPTACLE IS, MOREOVER, PROVIDED TO RECEIVE FLUID LEAKING FROM THE ENTRANCE OPENING, THIS FLUID BEING RETURNED TO THE AFORESAID RESERVOIR. AN OPEN SIGHT TUBE IS CONNECTED IN THE FLUID CIRCUIT BETWEEN THE AFORESAID VESSEL AND THE GATE AND CONSTITUTES A DEVICE BY WHICH THE FLOW RATE OF THE FLUID IN THE GATE AS WELL AS THE LEVEL OF THE FLUID IN THE GATE IS GAUGED.

Inventors

• 👤 Saul Jeffee
• 👤 Pedro Pablo Weinschenk

Bibliographic Details