A treatise on architecture and building construction . ter, describe the cnrve bsl\ which will be the miterline required. These miter lines on circular moldings arccalled hunting miters. 85. When it is required that a surface shall present acurved form, the wood may be bent around it by any one offive methods, namely, by saw ?kerflny:, Ivcyinjr, buck in«•a veneer, laminatiiij?» or steamiiijr- 2-35 74 JOINERY. 10 8G. Saw kerflng being less costly than other methods,it is often adopted. The method is not to be recommended,however; it makes a weak construction, and no matter howperfectly the work
A treatise on architecture and building construction . ter, describe the cnrve bsl\ which will be the miterline required. These miter lines on circular moldings arccalled hunting miters. 85. When it is required that a surface shall present acurved form, the wood may be bent around it by any one offive methods, namely, by saw ?kerflny:, Ivcyinjr, buck in«•a veneer, laminatiiij?» or steamiiijr- 2-35 74 JOINERY. 10 8G. Saw kerflng being less costly than other methods,it is often adopted. The method is not to be recommended,however; it makes a weak construction, and no matter howperfectly the work may be done, or how well it may bepainted, the saw-kerf marks will always show. For hard-wood moldings the method should never even be considered,and for curved work of whatever kind, solid molding shouldalways be used. A center, built to the desired diameter or curve, overwhich the material may be bent, and which will stay per-manently and accurately in its curved form, is absolutelynecessary with any of the above methods. In Fig. 53, the rib. Fig. 5ii. ah c for a center is composed of three pieces of li-inch plank;it is made concave on its inner edge, merely because it issometimes an advantage (when it can be done) to clutch thebent stuff and the rib with hand screws as shown. Blocks,as shown at d, extend the power of hand screws considerablybeyond the width of the jaws, and are therefore exceedinglyuseful. The staves of wood o^ o, o^ etc., of any lengthrequired, are nailed to the rib a b r, and form the circularsurface of the center. To find the distance between sawkerfs that will allow the material to bend to the curverequired, take a piece of stuff of a suitable length and equalto the thickness of that which is to be bent, as at c a, andlet a h be equal to the radius of the curve around which it §10 JOINERY, 75 is to be bent; make a saw kerf at co\ leaving a thicknessoa from \ inch to \ inch uncut; nail the piece at /, /; andmove it from b to s, or enough to just clo
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