Show EDISON'S NE NEW IV PATENT I On the of last January a patent was issued to Mr Thomas A Edison foran for fot an invention of a a new process of generating generating generating gen gen- gen gen- 4 Heretofore the material used in voltaic 1 cells in in which the positive and negative i plates have been immersed has been a j liquid In the new invention an element d dor or the salt of an element as oxide of J iron is to be used Tl The e iron oxide in which the positive and negative pl plates tes is is' is immersed is contained in an iron vessel vessel vessel ves ves- sel to which heat is applied in order older order t to facilitate chemical action and rarify the theair the air in the vessel The iron pot may serve as the negative electrode the pot has au an an air tight cover into which is cemented the positive which is preferably preferably bly of cai carbon bon The principal advantage claimed by Mr 1 Edison for this thi invention over the cells in common use is that the current is produced by the decomposition of a dry diy chemical compound in a rarified atmosphere atmosphere atmos- atmos i atmos-i phere in the presence of a positive element element element ele- ele ment which is attacked by such buch compound and is electrified thereby and a negative el element ment which is electrically charged bythe by bythe bythe the dry chemical reaction There is also an exhaust fan attached for the purpose of keeping the air in the cell sufficiently rarified On the whole the apparatus seems to be marvelously simple and efficient l- l I j |