Show Social Man Invents Practical I I Cylinder Grinding Contrivance I i I HAS lIAS reme remained for a Salt Lake Lale Lakeman Lakeman IT man to come forward with an ln in- in having to do with the all all- automobile repair game that promises to supply a long felt fell want in its particularly particular intended d sphere John S S. Young one of Salt SaIl Lakes Lake's real expert motor car mechanics ics is the the- Inventor referred to and andam an am entirely new wrinkle for the grindIng grinding grind grind- Ing o of oC cylinders for internal combustion combus combus- tion engines Is iss is his achievement Mr Young Young alrEady already has a working model In operation in his exten extensive he automobile repair plant on South State street and It has been the subjEct subject subject sub sub- of much favorable comment from all experts who have seen It In hi operation Although the invention is capable of general application it finds its one advantageous use as a means for refInishIng cylinders It is generally desired that such cylinders be refinished hed by grinding but the ordinary repair shop is generally not equipped with the tho usual grinding machines since the relatively high initial exi expense ex- ex i pense of grinding machine installation installation I tion Is generally not justified by the volume of work to be performed An engine lathe lath is however a a- usual part of the equipment of 01 automobile automobile automobile auto auto- mobile repair shops and Is not only much less expensive than the usual grinding machine but buts s i s also useful for performing a variety of 01 work Mr 1 Youngs Young's s invention s concerned among other things with the provIsion provision provision provi provI- sion of an attachment which may maybe maybe 1 be E readily applied to an ordinary T F FI i I I P. P 3 Yr I II II I I I G 4 iwI JOHN S S. S YOUNG a lathe to extend Its field of service and make male it suitable for tor grinding I engine cylinders or work of like character I The new contrivance Is la such that it eliminates the formerly encountered 1 I difficulties by bv taking up the slack I I of the driving belt and maintains the desired tension on the lathe lathe at atall I alt all times An object of the Invention invention tion is to provide a grinder attachment attachment attach attach- I ment Including a frame adapted to I I the adjustably attached to the face faceplate plate of a lathe or or r like revolving member together with a grinding wheel its driving shaft and a driving motor all suitably mounted In the I frame so that the wheel may be continuously revolved by the motor and directly driven A further object of the invention Isto is isto isto i to provide in combination with the I lathe or like member an act attachment of the I kind nd described together with i electrical connections between the motor and electric supply terminals outside the lathe said connections connections con con- including a a. wiping contact between one of 01 the terminals and a aI I part carried ny Dy the lathe Summed up the invention provides a grinder attachment which l may be readily and conveniently r p to existing machines such as lathes to convert them into grinding machines The invention particularly is 1 characterized characterized charac charac- by providing in the attachment attachment attachment attach attach- ment a grinding wheel driving means such as electric motor whereby the wheel ma may not only be driven independently independently independently inde inde- of of the lathe at atthe I the desired high speeds but may also be directly driven without necessitating the special special cial and rather elaborate connections I heretofore applied between the grinding grinding grind grind- ing wheel and an external source of power and without imposing on th the I wheel the lateral strains incident to such connections |