File:Descriptive geometry (1909) (14802424593).jpg

Identifier: descriptivegeome00anth (find matches)
Title: Descriptive geometry
Year: 1909 (1900s)
Authors: Anthony, Gardner Chace, 1856- (from old catalog) Ashley, George Francis, (from old catalog) joint author
Subjects: Geometry, Descriptive
Publisher: Boston, D. C. Heath & co.
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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to the verticalplane, thus appearing in their true lengths in vertical projection. The development may be obtained byeither of the following methods, the first being that used in practice. First method: the elements beingparallel to V, the development may be obtained as in Art. 126, page 91, the amount indicated for the lapbeing added to the sheet. Second method : obtain a right section VX by Art. 118, page 82, the development of whichwill be a right line, mn. To obtain the distance between the elements revolve the plane of the right section parallelto P, and measure the required distances in the profile projection, or end view. Develop as in Art. 125, page Draw and develop the dome and connection sheet, or slope sheet, of a locomotive boiler. Unit of measure, ; inch. Space required for each problem, 5x7 inches. Angles between GL and traces of pi A-yc QQanes, multiples of 15°. Measurements from GL, in light type, and from right-hand division line, in heavy type. > *—f^ I *— OO
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Problems 1, 2. Draw an element of the -w^arped surface through point a. (Art. 145, page llO.) Problems 3, 4. Draw an element of the warped surface through point a. (Art. 146, page 111.) Problems 5, 6. Draw an element of the warped surface parallel to line C of the plane director, N. (Art. 147, page 112.) Problems 7, 8. Dravsr an element of the hyperbolic paraboloid through point a, of a directrix. (Art. 150, page 116.) Unit of measure, ; inch. Space required for each problem, 5x7 inches. Angles bet^veen GL and traces ofplanes, multiples of 15°. Measurements from GL, in light type, and from right-hand divison line, in heavy type. PLATE 34

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