Process and apparatus for applying silver films

Claim 1

IN THE METHOD OF MAKING MIRRORS BY DEPOSITING A SILVER FILM ONTO A SURFACE WHICH COMPRISES MOVING A LIQUID CONDUIT MEANS RELATIVE TO THE SURFACE OVER A COURSE ON THE SURFACE, FLOWING ONTO SAID COURSE FROM SAID CONDIT MEANS A FIRST STREAM OF LIQUID WHICH CONTAINS A REDUCING AGENT SECOND STERAM OF LIQUID WHICH CONTAINS A REDUCING AGENT ONTO SAID COURSE SO THAT SAID STREAMS ARE ADMIXED ON THE SURFACE AND FORM A LIQUID MEDIUM, AND ALLOWING REDUCING AGENT TO REDUCE SILVER SALT PRESENT IN THE LIQUID MEDIUM AND PRECIPITATE SILVER ON THE SURFACE, AND FORM A SPENT LIQUID MEDIUM, WHEREBY SPENT LIQUID MEDIUM FLOWS ONTO A PORTION OF SAID COURSE SUBSEQUENTLY TO BE TRAVERSED BY RHE LIQUID CONDUIT MEANS, THE IMPROVEMENT WHICH COMPRISES FORMING SAID FIRST STREAM CONTINUOSULY DURING THE FLOWING OF SAID FIRST AND SECOND STREAMS OF LIQUID ONTO THE SURFACE BY ADMIXING A CONCENTRATED AQUEOUS SILVER SALT SOLUTION AND AN AQUEOUS MEDIUM, FLWOING EACH THE FIRST AND SECOND STREAM ONTO THE SURFACE AS A CONTINUOUS LIQUID STREAM AND DIRECTING A STREAM OF GAS ONTO AT LEAST PART OF SAID COURSE ADJACENT AND IN ADVANCE OF LIQUID MEDIUM DIRECTED ONTO THE COURSE BY THE LIQUID CONDUIT MEANS THEREBY CLEARING SAID PART OF THE COURSE OF SPENT LIQUID MEDIUM IN PREPARATION THEREOF FOR RECEIVING LIQUID MEDIUM FROM THE LIQUID CONDUIT MEANS.