Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 82
nt with perfect alignment. The boxes of top shaft are open, allowing shaft withattached roller to be laid in. The crank shaft boxes are hinged and easily opened witha monkey wrench. The safety of this machine is secured by the ratchet whichis attached under the top wheel and will stop the machine… … THE DUPLEX HANGER COMPANY 12 BUILDERS HARDWARE, ETC. PRODUCTS. ADAPTABILITY.TESTS. DUPLEX JOIST HANGER. DUPLEXWALL HANGER. THE DUPLEX HANGER COMPANY INCORPORATED CLEVELAND, OHIO Sole manufacturers of THE DUPLEX JOIST and WALL HANGERS, I BEAM HANG-ERS, Duplex Post Caps, Cleveland Steel Wall Ties and…
Building materials
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