This section is from the book "Cyclopedia Of Architecture, Carpentry, And Building", by James C. et al. Also available from Amazon: Cyclopedia Of Architecture, Carpentry And Building.
Fig. 73 is a plan of a stair with a landing and return steps.
Fig. 74 is a plan of a stair with an acute angular landing and cylinder.
Fig. 77 is a plan of a quarter-space stair with four winders. Fig. 78 shows a stair similar to Fig. 77, but with six winders.
Fig. 69. Method of Reinforcing Stair.
Fig. 70. Plan Showing One Method of Constructing Carriage and Trimming Winding Stair.
Fig. 71. Reinforcing Treads and Risers by Blocks Nailed to String.
Fig. 72. Plan of Straight Stair with Cylinder at Top for Return Rail.
Fig. 79 shows a stair having five dancing winders.
Fig. 80 is a plan of a half-space stair having five dancing winders and a quarter-space landing. Fig. 81 shows a half-space stair with dancing winders all around the cylinder.
Fig. 82 shows a geometrical stair having winders all around the cylinder.
Fig. 83 shows the plan and elevation of stairs which turn around a central post. This kind of stair is frequently used in large stores and in clubhouses and other similar places, and has a very graceful appearance. It is not very difficult to build if properly planned.
The only form of stair not shown which the student may be called upon to build, would very likely be one having an elliptical plan; but, as this form is so seldom used - being found, in fact, only in public buildings or great mansions - it rarely falls to the lot of the ordinary workman to be called upon to design or construct a stairway of this type.
Fig. 73. Plan of Stair with Landing and Return Steps.
Fig. 74. Plan of Stair with Acute-Angle Landing and Cylinder.
Fig. 75. Plan of Stair with Obtuse-Angle Landing and Cylinder.
Fig. 76. Half-Turn Stair with Two Risers on Landings.
Fig. 77. Quarter-Space Stair with Four Winders.
Fig. 79. Stair with Five Dancing Winders.
Fig. 78. Quarter-Space Stair with Six Winders.
Fig. 80. Half-Space Stair with Five Dancing Winders and Quarter-Space Landing.
Fig. 81. Half-Space Stair with Dancing Winders all around Cylinder.