Show How Waste of li Lit it Prevented One of or the considerable sources SO S of ot fuel waste la lis th the unnecessary burning of ot electric lights light A large lurle percentage of ot lights tire ere used chiefly for tOl limited pt periods as for Instance In cloak rooms They are turned on an and then heed heedlessly lessly hessly left lett burning Thus we e recommended to shut of oft needless need less tess lights as a matter of ot national sav save ing An n Invention de designed to remedy this condition is the work of at J. J E E. Lewis of ot New ew York By pushing a s button the light is turned on and glows tor for a predetermined period say period say five ve c cor or ten minutes minutes and and then Is hi automatic automatically ally aUy cut off The device dc has been tested and found practical and seems useful in the theay way ay of ot checking electric electric- light waste |