Building construction and superintendence, by F.E. Kidder ... (1896)
Kidder, Frank E. (Frank Eugene), 1859-1905 · New York, W.T. Comstock · leaf 328
—Wherever segmentalarches are used over doors or windows, without ample abutments, SKELETON CONSTRUCTION. 3*3 cast iron skewbacks, connected by iron rods of proper size, shouldbe used to take up the thrust of the arch, as shown in Fig. 224. Shutter Eyes.—NW fireproof doors and shutters in brick or… … is about the best for the eyes, although for very heavy doors or shut-ters the strength of the face should be increased by having anotherweb. For stone walls the shape shown at b should be used. Thethickness of the metal is generally made % of an inch. Door Guards and Bumpers.—It is a good idea to…
Building
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