File:A manual of elementary geometrical drawing, involving three dimensions. Designed for use in high schools, academies, engineering schools, etc. - and for the self-instruction of inventors,artizans, (14785701463).jpg

Identifier: manualofelementa01warr (find matches)
Title: A manual of elementary geometrical drawing, involving three dimensions. Designed for use in high schools, academies, engineering schools, etc. : and for the self-instruction of inventors,artizans, etc. ... In five divisions ..
Year: 1867 (1860s)
Authors: Warren, S. Edward (Samuel Edward), 1831-1909
Subjects: Geometrical drawing Mechanical drawing
Publisher: New York : J. Wiley and son
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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drawn. g. Draw the valve, e, the copper weight e, the screw end, A,and the nut and oblong washer, h! and g. h. Locate, at once, the centres of all the small circles, cc, &c., bythe intersection of arcs, \ from the circle jop having * for a centre,with the diagonals; then proceed to draw these circles. i. Draw the piojections, as TJ, drawing the opposite ones simul-taneously, and using an auxiUary end view of the nuts w, as oftenexplained before. j. Draw the feet, F, with their grooves, F, and bevel edged screwholes, L. k. In drawing the shelf, K, and flange W, the intersection of thecentre lines BK and mm, is the centre for the curves which inter-sect the centre line AK; the-coi-ners, 1 1, of the nuts, v,u, are thecentres for the curves that cross the centre line, vv; and theremaining outlines of the shelf are tangents to the arcs thus drawn,and those of the flange are lines sketched in so as to give curvestangent to the arcs already drawn, and shoxt straight lines parallelto vv.
Text Appearing After Image:
Tl,(MaiBrili«>i>i. t.tMIJSIHltnM > IKON CONSTRUCTIONS. 121 I. The remaining circles and larger hexagon, w, of this portionof the plan, have the intersection of the centre lines for a centre; andmay be drawn by measurements independently of the elevation, orby projection from the elevation, after that shall have beenfinished. 269. Passing to the elevation:— a. Construct, at one position of the T square, the horizontal linesof both feet; then the horizontal lines of the nuts m, and flange L,and projection U; with the horizontal Unes of the floor of the airchamber and adjacent parts. b. Project up from the plan the vertical edges of the feet, FF,the flange, nut, and projection L, u and XT, the valve e, the cop-per e, the screw h, the washer g, the air chamber flange//*, andscrew z. Break away the portion D—see plan—of the body ofthe machine, and the near wall of the water channel AB. Breakaway also the further wall of the water channel so as to show asection, H, of the fu

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