Method of treating the surface of solids with liquids

Claim 1

THE METHOD OF ELECTROLYTICALLY ETCHING A RESTRICTED SURFACE AREA ON A SEMICONDUCTIVE BAR INTERMEDIATE ITS ENDS WHILE MAINTAINING THE ELECTROLYTE OUT OF CONTACT WITH THE BAR ENDS, WHICH COMPRISES MOUNTING A PAIR OF RIGID MEMBERS OF CONDUCTIVE MATERIAL TO WHICH AN AQUEOUS ELECTROLYTE WILL ADHERE AT A SEPARATION OVER WHICH THE SURFACE TENSION OF THE ELECTROLYTE WILL SUSTAIN A WEB THEREOF WITH THE AXES OF SAID MEMBERS INCLINED WITH RESPECT TO THE HORIZONTAL, MOUNTING THE SEMICONDUCTIVE BAR WITH THE AREA TO BE ETCHED IN THE REGION BETWEEN THE MEMBERS, SUPPLYING LIQUID TO THE REGION BETWEEN THE MEMBERS AT A POINT ABOVE THE RESTRICTED SURFACE AREA, ESTALISHING CONTACT BETWEEN THE LIQUID AND THE BODY OVER SAID RESTRICTED AREA, SUSTAINING CONTACT BETWEEN THE STEAM OF LIQUID FLOWING ALONG SAID MEMBERS AND THE RESTRICTED AREA BY THE FORCES OF ADHESION AND SURFACE TENSION, ELECTRICALLY BIASING THE ENDS OF SAID SEMICONDUCTIVE BAR POSITIVE WITH RESPECT TO THE CONDUCTIVE MEMBERS, AND PASSING CURRENT THROUGH SAID ELECTROLYTE AND BETWEEN SAID SEMICONDUCTIVE BAR AND SAID MEMBERS