Show n nt AUTO UTO AL r E Every automobile owner ha has hag occasional to have havo the valves es of or his engine Ine I at more or less lesa regular Intervals The Tha Theold J Jold old and laborious methods of hand grinding are arc being supplanted by t tuso thU use uso of oC an electrically driven valve vaIn grinder s The spindle of or th the new nu de device de- de dei t i vice Ico is said to oscillate with a I l n steady sweep sweep similar to the movement t to o obtained in grinding but many ll limes n more rapid Tho pistol grip And a d. d i f get s-cr switch are arc employed and and elt elti It j i i possible to too o operate and control L the tha grinder In a a. very convenient manner J i |