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BULLETIN 155, U. S. DEPARTMENT OF AGRICULTURE. 



were used with 6-foot spacing. Supports similar to the other cradle 

 shown (fig. 7, B) have been used on a number of pipe lines. The 

 Logan (Utah) city power jpipe line rests on such cradles spaced 

 4 feet center to center, with no mudsill blocks beneath the 6 by 6 inch 



Fig. 7. — Cradles for carrying stave pipe. 



timber. The 48-inch pipe of the Portland Flouring Mills Co., at 

 Dayton, Wash., is carried on cradles 12 feet apart, and while this 

 spacing is unusually wide the support appears to be ample. 



Some large wood-pipe lines carried across rivers and ravines on 

 bridges, or trestles of steel, are supported by cradles also of steel. 



