Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 764
Fig. I. SAFETY BELT WITHBOLTS IN WOODWINDOW FR.VME … Fig. 2. BRONZE ANCHOR BOLTSFor 4 inch Reveal or for TerrCotta, Marble, Stone, etc. Fig. 3 BRONZE ANCHORBOLTFor 8 inch Reveal The Bolts for Wood Frames are semi-globe head inshape, and when engaged with the Terminal attached to theend of the Life Belt carried by the Window Cleaner, makes a ball and…
Building materials
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