Show lr dr la leass ss method of some interesting processes 0 ju o abt obtain am I 1 0 1 at ur ar rr T M i ely a f ra mineral oils oila have been described by dr laing of edinburgh before the royal scottish society of arts amon among these he names the arrangement of a still in such a manner that the oil is continuously being distilled into itself until the required density is obtained dr laing showed that radiant heat isa is a powerful aai ad tit nt in breaking brea lang down oil vapors and cal ca be utilized by passing the gases as they leave the still through a a at a high temperature placed beti between veen the still and the condenser his lais ingenious method for distilling under pressure by means of which a hold is kept on all the considerable gases until liquefied hs ho describes as consisting f a relief relie f tank interpol interposed sed between t the pressure valve and the condenser into which the gases escape as they come from the still the pressure here getting get tiu distributed over oer such a large area that it is practically reduced to nil the 0 oil U running to the receiver at ordinary atmospheric mo pr pressure esaure dr laings new form of still for pr preventing ei oils being broken down as ag id it distilling for lubricating oils and wax was is is so constructed that the heavy residues which are ara continually forming under distillation are constantly being removed from the burco of heat new york sun |