San Francisco : Architect and Engineer, Inc · leaf 63
ses 42 feet to the bottom of the third floor ex-tension. Heavy ordnance and other equipment mustbe moved about easily so each floor is equippedwith cranes, lifts, hoists, or monorails for that purpose. The Shop Crane Bay, devoted to ordnance re-pair work, has two 30-ton bridge cranes, twobridge… … DETAILS OF GLASS ROOF Extending out of the south sideof the building at the sixth floorlevel is a 39-foot outrigger craneboom capable of a 15-ton lift forthe hoisting of periscopes andrange finders from the railroadtracks below. The periscopes arelifted into the periscope towerwhich rises 41 feet…
Architecture · Building
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