WeRead Powered by ReaderPub
Practical Stair Building and Handrailing / By the square section and falling line system. cover

Practical Stair Building and Handrailing / By the square section and falling line system.

Chapter 20: PLATE XV. LEVEL LANDING WREATH, OR HALF TWIST—continued.
By W. H. Wood
Open in WeRead

Explore more books like this:

Engineering & TechnologyHow To ...

About This Book

A practical trade manual that presents step-by-step methods for laying out, cutting, and assembling stairs and handrails. It begins with elementary geometric problems and stretch-outs used to form curves and easings, then explains how to transfer site dimensions onto rods, set out risers, goings, strings, newels, landings and winders, and apply the steel square for accurate profiles. Plates and worked examples illustrate full-size layouts, recommendations for rise-and-run proportions, and a tested square-section and falling-line approach to handrailing, with detailed workshop techniques for cutting, fitting and joining components.

PLATE 15.

PLATE XV.
LEVEL LANDING WREATH, OR HALF TWIST—continued.

Fig. 1 shows the plank from which the wreath is to be cut out. Lay the face mould on, and transfer the tangents on the face of the stuff. Mark off each side of the tangent at P, O H to equal C H, Fig. 5, Plate XIV., and cut the wreath out square through the plank, as shown by dotted lines, taking care to have the wreath cut full on the minor axis at A, and along the shank to S, as this part does not exceed the width of the rail.

Fig. 2 shows the wreath after being cut out square through the plank. Plane one side perfectly true, then get it to its required thickness. It is very important that the stuff should be got to the same thickness as drawn at the sections, that is, twice the thickness of O C, Fig. 5, Plate XIV. Now make the joints square to the face of stuff and square to the tangents, applying the square as shown. So much depends upon the trueness of the joints that too much care cannot be taken with them.

Fig. 3 shows the face mould for the other side of the stuff. Lay the face mould, Fig. 4, Plate XIV., on a thin piece of stuff, and mark off on to it the tangents S A B C P and the section lines, stick a bradawl through 5 and 6, and mark off on the section lines, on each side of C 5 and 6, the width as shown opposite to the first face mould. Fig. 4 shows the application of moulds.