MODERN BLACKSMITHING 



83 



right as they can be, in regard to size of iron, in pro- 

 portion to the wheel. But it is different with buggy 

 tires. I hold that they are all made too light to be of 

 any protection to the fellows. I understand the reason 

 why they are made this way, but if a man wants a 

 light rig, let that be the exception and not the rule. 



Tire should not be less than one-fourth of an inch 

 thick for seven-eighths wide, and five-sixteenths for 

 an inch wide and over. 



EXPANSION OF THE TIRE 



A tire four feet in diameter will expand two inches 

 and a quarter, or three-sixteenths of an inch to the 

 foot. Steel tire expands less. This is the expansion 

 of red heat. If heated less it expands less, but it is no 

 trouble to make the tire expand for all the draw it 

 needs. 



