Show self lighting smudge pot mt by the invention of 0 a simple thermostatic controlling device a los angeles man has developed an ingen ingenious 1 ous apparatus tor for rendering the smudge pots used by self bolt ing says popular mechanics the appliance ance which may be fitted to any standard type ot of pot Is regulated by a small copper rod when the atmospheric temperature drops to a predetermined ter mined point the contraction of the rod is sufficiently great to release a cup containing an acid the liquid is poured into a small chamber provided in the smudge pot this holds a chemical substance which burns upon tile the addition ot of the acid producing a flame that ignites the crude oil used in the pot the thermostat may be ba adjusted so as to release the acid when the temperature falls alls to any specific degree with this apparatus in use an orchard may be protected from frost without personal attention being given it |