Sweet’s indexed catalogue of building construction for the year 1906 (1906)
New York : Chicago : Architectural Record · leaf 287
s ofour climate from the far North to the extreme South. For beauty, economy and durability, this system eclipses all rivals. Engineers and architects when using this system, in order to avoid any possiblesubstitution, should specify as follows: Specifications—To be glazed with Helliwell Patent… … Steel 13/^ STEEL BAR. ■HELLIWELL P.\TENT SYSTEM OF IMPERISHABLE GLAZING It will be observed that the lower or supporting part of these bars is made of solidsteel, and may form part of the structure of the roof. It also forms a very strong andrigid support for the glass; while the cap is made of…
Building materials
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
