Miracle concrete: the great modern industry (1909)
Miracle Pressed Stone Co. · Miracle Pressed Stone Co. · leaf 104
tely about a half pound to every footof head and oftentimes we have been called on for in-formation as to how a cement pipe should be reinforcedto carry water having from 50 to 200 foot of head. Wehave therefore made a table which is shown on thispage, giving the size of sheet of expanded metal… … It is unnecessary to reinforce cement pipe whenonly subjected to 25 lbs. internal pressure per squareinch or less. Florence, Colo., April 1 7, 1908,Miracle Pressed Stone Co., Minneapolis, Minn,Gentlemen:—We wired you today as follows:Quote us by wire on sixteen inch mold with sixty bot-tom and two…
