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Free Books / Architecture / Building Construction Vol3 / |  |
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51. Quarter Platform With Tangent Between Quarter Cylinders |
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This section is from the book "A Treatise On Architecture And Building Construction Vol3: Stair Building, Ornamental Ironwork, Roofing, Sheet-Metal Work, Electric-Light Wiring And Bellwork", by The Colliery Engineer Co.. Also available from Amazon: A Treatise On Architecture And Building Construction.
Fig. 47 is a plan of a quarter-platform stairway for a continued hand rail. The cylinder opening of 18 inches is formed by two quarter circles, each of 5 inches radius, and an 8-inch piece of straight stringer between. By this method a platform is secured, and angular winders are dispensed with; the run of the stairway is also reduced.
Fig. 47.
Continue to:
architecture, building, construction, stair building, ornamental ironwork, roofing, sheet-metal work, electric-light wiring, bellwork
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