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Wed, 6 Dec 2000 10:36:38 EST |
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In a message dated 12/6/00 8:55:42 AM Central Standard Time,
[log in to unmask] writes:
<< (1) Can someone please tell me what year it was that hollow concrete block
was first made and used in construction? >>
"Throughout the nineteenth century attempts had been made to cast concrete
into building blocks, but the modern industry began with Harmon S. Palmer's
invention of a cast iron blcok machine, which he patented in 1900." Pamela H.
Simpson, Harry J. Hunderman and Deborah Slaton, *Concrete Block* in
*Twentieth Century Building Materials*, ed. THomas C. Jester, McGraw Hill,
1995, p 80.
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