Concrete Wall Mold. (open access)

Concrete Wall Mold.

Patent for "a concrete wall mold which is so constructed as to produce a very strong wall having vertically extended channels which form ribs materially reinforcing the structure" (lines 10-14)
Date: June 11, 1920
Creator: Porter, Charles S.
Object Type: Patent
System: The Portal to Texas History
Tests of Large Columns with H-Shaped Sections (open access)

Tests of Large Columns with H-Shaped Sections

Report issued by the Bureau of Standards over studies conducted on h-shaped columns. Physical and chemical tests were conducted on different types of columns. The results are presented and discussed. This report includes tables, illustrations, and photographs.
Date: June 11, 1926
Creator: Tuckerman, L. B. & Stang, A. H.
Object Type: Report
System: The UNT Digital Library