Device for developing copying paper

Claim 1

COPYING PAPER DEVELOPING APPARATUS COMPRISING, IN COMBINATION, AT LEAST ONE HORIZONTALLY EXTENDING ELASTIC SUPPORT; MEANS FIXEDLY SUPPORTING ONE END OF SAID SUPPORT; ELECTROMAGNETIC VIBRATING MEANS OPERATIVELY ASSOCIATED WITH THE FREE END OF SAID SUPPORT AND OPERABLE, WHEN ENERGIZED, TO VIBRATE SAID SUPPORT IN A VERTICAL DIRECTION; A TREATMENT LIQUID TANK SUPPORTED ON SAID SUPPORT FOR VIBRATION THEREBY, SAID TANK HAVING A BOTTOM WALL FORMED WITH A TRANSVERSELY EXTENDING VENT; A PAIR OF LIQUID APPLYING ROLLERS ARRANGED IN PARALLEL SUPERPOSED RELATION BELOW AND IN ALIGNMENT WITH SAID VENT, THE CYLINDRICAL SURFACE OF THE UPPER ONE OF SAID ROLLERS BEING SPACED FROM SAID VENT; DRIVING MEANS OPERABLE, WHEN ENERGIZED, TO ROTATE SAID ROLLERS TO DRAW COPYING PAPER THEREBETWEEN; A NORMALLY OPENED SWITCH POSITIONED IN ADVANCE OF SAID ROLLERS IN THE PATH OF THE COPYING PAPER FOR CLOSURE BY THE LATTER AS IT IS FED TO SAID ROLLERS; AND AN ENERGIZING CIRCUIT FOR SAID ELECTROMAGNETIC VIBRATING MEANS INCLUDING, IN SERIES WITH THE LATTER, A SOURCE OF POTENTIAL AND SAID SWITCH; WHEREBY AS COPYING PAPER IS FED TO SAID LIQUID APPLYING ROLLERS, SAID TREATMENT LIQUID TANK IS VIBRATED VERTICALLY TO DISCHARGE LIQUID THEREFROM THROUGH SAID VENT ONTO THE CYLINDRICAL SURFACE OF THE UPPER ONE OF SAID ROLLERS FOR APPLICATION TO THE COPYING PAPER.