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Richey's guide and assistant for carpenters and mechanics : a work of practical information, giving almost every geometrical and practical problem likely to arise in the work of the carpenter, and quick and easy methods for their solution : the use of the steel square, etc., tables showing strength and weight of materials, methods of framing, useful recipes, etc., etc. (1894)

Richey, H. G. (Harry Grant), b. 1868 · New York : W.T. Comstock · leaf 72

An illustration from Richey's guide and assistant for carpenters and mechanics : a work of practical information, giving almost every geometrical and practical problem likely to arise in the work of the carpenter, and quick and easy methods for their solution : the use of the steel square, etc., tables showing strength and weight of materials, methods of framing, useful recipes, etc., etc., 1894, leaf 72
entre and 4 7 as radius,draw arc 7 8, etc. 84—To Draw a Spiral Composed of Semi-Circleswhose Radii Shall be in Geometrical Progression.— Draw an indefinite line, as a b, Fig. 90. With i as centreand I 2 as radius, draw first semi-circle 2 3; then, with 2as centre and 2 3 as radius, draw semi-circle… … a --^- - -

Carpentry

Internet Archive · Boston Public Library · Public Domain Mark 1.0. Free to use for anything.

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