Christie, Parker & Hale
Composite concrete and steel pallet for forming one end of concrete pipe
 A composite pallet for forming the lower end of a concrete pipe cast in a vertical position includes a concrete base having an annular portion shaped to form the end of the pipe. An outer annular steel ring is bonded to the base around the outer periphery of the annular portion of the concrete base, and an inner annular steel ring is bonded to the base around the inner periphery of the annular portion. The two rings are more chip-resistant than the concrete base. The outer ring is shaped to receive one end of an outer cylindrical form, and the inner ring is shaped to receive one end of an inner cylindrical form so that an annular cavity is formed between the two cylindrical forms for casting the concrete pipe. 
Ameron, Inc.
B B
B28B B28B
inventional inventional
Hugh M. Harry H. Donnie H.
Hofmann Robertson Hicks