. Cyclopedia of architecture, carpentry, and building; a general reference work ... Fig. 81. Half-Space Stair with Dancing Winders all around Cylinder. GEOMETRICAL STAIRWAYS ANDHANDRAILING Fig. 80. Half-Space Stair with ^he term geometrical is applied to stair-QuanTr^plcTLaSf ways having any kind of curve for a plan. The rails over the steps are made con-tinuous from one story to another. The resulting winding ortwisting pieces are called wreaths. Wreaths. The construction of wreaths is based on a fewgeometrical problems—namely, the projection of straight and curvedlines into an oblique plane;

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. Cyclopedia of architecture, carpentry, and building; a general reference work ... Fig. 81. Half-Space Stair with Dancing Winders all around Cylinder. GEOMETRICAL STAIRWAYS ANDHANDRAILING Fig. 80. Half-Space Stair with ^he term geometrical is applied to stair-QuanTr^plcTLaSf ways having any kind of curve for a plan. The rails over the steps are made con-tinuous from one story to another. The resulting winding ortwisting pieces are called wreaths. Wreaths. The construction of wreaths is based on a fewgeometrical problems—namely, the projection of straight and curvedlines into an oblique plane; and the finding of the ^ngle of inclinationof the plane into which the lines and curves are projected. This angle 307 44 STAIR-BUILDING.

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Keywords: ., bo, bookcentury1900, booksubjectarchitecture, booksubjectbuilding