The Architect & engineer of California and the Pacific Coast (1905)
San Francisco, Calif. : Architect and Engineer Co · leaf 63
nger sizes. STRENGTH OF RED AND YELLOW DOUGLAS Ilk BRIDGE STRINGERS(YelIo« Fir Expressed in Pei ( enl ol Red Kin KIND NUMBER rim;s PER WEIGHT PER CC. FT.IN POUNDS OF TESTS l\. 1! MOISI i in DRY LIMIT RUPTURE ■ Lbs. per Lbs. per Red Select 48 10.3 29.6 29.5 1127 Yellow 4.5* 17.5* 87.0 94 o 97 0 101… … I—Lathe Lighting Socket and a Steel Reflector Machine Shop Lighting* THE very little attention which has been given to artificial lighting inindustrial plants is doubtless due largely to the lack of efficient lightingaccessories. For years the only shades available for incandescent lampshave been…
Architecture · Building
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