Continuously working plant colorimeter

Claim 1

A CONTINUOUSLY WORKING PLANT COLORIMETER COMPRISING A COLLECTOR WHICH RECEIVES A CONSTANT PARTIAL CURRENT OF THE LIQUID WHOSE CONTENT OF COLORLESS CONSTITUENT IS TO BE MEASURED QUANTITATIVELY AS WELL AS CURRENTS OF LIQUID REAGENTS REQUIRED TO BRING OUT A COLORATION, A MEASUREMENT CELL, MEANS CONNECTED WITH THE COLLECTOR AND THE MEASUREMENT CELL FOR UNITING THE CURRENTS INTO A SINGLE CURRENT AND FOR DELIVERING THE LATTER TO SAID CELL, THE LENGTH OF SAID MEANS BEING ADAPTED TO EACH AND EVERY REACTION TIME, ADDITIONAL MEANS CONNECTED WITH SAID CELL BY WHICH THE CURRENT OF LIQUID IS CIRCULATED, A DISCHARGE FUNNEL CONNECTED WITH THE CELL FOR CARRYING AWAY A PORTION OF TH CURRENT OF LIQUID, MEANS FOR CYCLING THE REMAINING PORTION OF THE CURRENT WITH FRESH LIQUID ENTERING THE CELL, A LIGHTING MEANS LOCATED ADJACENT THE CELL FOR SENDING A PARALLEL BEAM OF LIGHT THROUGH THE CELL, A SEMIPERMEABLE MIRROR INSERTED IN THE PATH OF RAYS UNDER AN ANGLE OF 45* AT THE SIDE OF THE CELL OPPOSITE TO THAT OF THE LIGHTING MEANS, A MEASURING FILTER INSERTED BEHIND THE MIRROR IN THE STRAIGHT-LINED PATH OF RAYS, A MEASURING PHOTOCELL SUPPORTED IMMEDIATELY BEHIND SAID MEASURING FILTER, A COMPARISON FILTER INSERTED IN THE PATH OF RAYS REFLECTED BY THE MIRROR, A COMPARISON PHOTOCELL SUPPORTED BEHIND THE COMPARISON FILTER AND A MEASURING DEVICE WHICH RECEIVES THE CURRENTS SUPPLIED BY THE TWO PHOTOCELLS, EVALUATES THEM AND INDICATES THE RESULT.