San Francisco : Architect and Engineer, Inc · leaf 525
ment and get the good points—and,incidentally, comparative prices. Decide upon one of them, and specify it.But be sure you get the right one, as well as all measurements of specialsteel work that may have to be done. Such measurements necessary usually include special beams for sup-porting the… … COUNTERWEIGHT SYSTEM My private opinion on these systems is that any of them are muchbetter than the old pin-rail system. The cheapest and most convenient—as far as special preparation goes—is the system using the wire guides.But be sure you have prepared in such a way that the tension on thewires…
Architecture · Building
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