SHOES WITH KEMOVABLE TOE AND HEEL PIECES. 



149 



care being taken not to hammer the shoe so as to alter the 

 size or shape of the hole after drifting. When the shoe is 

 cold tlie rough edges left on the ground surface are tiled away 



Fig. 95.— Shoe fitted for removable toe and heel pieces. 



and the holes opened with an opening punch, so that the cog 

 or toe-piece will go half way into the shoe without driving. 

 This completes the operation and leaves the shoe as shown in 



Figs. 96, 97, and 98.— Heel-pieces (sharp). Fig. 99.— Blunt heel-piece. 



ficr. 95. The succeedino; fiorures show various forms of cogs 



'o* 



and toe-pieces. Owing to their form, these cogs, etc., always 

 wear with a sharp edge, and their shanks being elongated, the 

 holes required do not weaken the shoe. 



To remove old cogs the wedge-shaped pronged tool illustrated 

 is driven between the shoulder of the cog and surface of the 



