Show xa I 1 j wit 0 7 V I 1 it 10 7 sp V b 4 n liy heed bw t of alio boot an and it K i be b detached and rever I 1 lie I 1 0 coroi li or illee r ily 1 y similar material shaped as a lift liff with flange and groove by tl ti r e 0 rat of w tile it is blied 14 ll 11 try any pt part 11 af f tl if a t of abs tbs til bwl beef at the option of tl a it 11 it it pr while the a upper portion of 0 tj tie a I 1 lalli eel is so 10 constructed as a to slide lulo luto n so 10 that it ll 11 julpha tle fr in mi tin ordinary beel but to insure I 1 tie security a fine crew screw in to inserted liner led frum the luilda the th advantages claimed for it are that when it tie 0 top pit cog be come comes slightly worn down it tie a m efrer can remie reverse it to the tb other bout ai at I 1 after them these bare have bern been well wora worn V lie ey can be replaced bj by a I 1 er ef net get HI lit a very small i in all cott cost |