Contractors' and Dealers' Association of California · San Francisco : L. A. Larson · leaf 618
ations In the carbon contentand thickness of the metal, resulted indifferences in the angles produced andconsequent imperfect alignment of forms. The new form will take bends of 100feet in radius, which is said to be 150feet shorter radius than is required instandard specifications for the use… … a male element on one end which fitsaccurately into a female element on theadjacent end of the next form, thus mak-ing ture alignment of joints always cer-tain. A seven-inch sliding member isdriven through keyways on each two ad-joining forms and is held by two stakesto form a rigid joint. The…
Architecture · Building · Construction industry · Engineering
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