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 109
y of an inch. Theline 2 6 is one inch in length and divided into ten equalparts, then each part contains jW of an inch, and as thediagonal will give any number from y i-„- to j^q% the scaleis easily understood. To divide a board into equal spaces or strips, place thesquare on the board in the… … 128—To Prove a Square.—Take a board with a per-fectly straight edge, as in Fig. 141, and place the squareon as shown by the dotted lines and draw a line across r ) \ \ . 1 the board along the tongue of the square; now turn thesquare over, and if it is true the tongue will come rightup to the line,…
Carpentry
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