The Artizan . h of its surfaces, which are fiat,a metal case containing the lime is fastened every evening before cases, which are open in front, are about 1| inches in breadth at theback, and are dovetailed so as to overlap the edges of the lime, which is insection the segment of a cylinder, so as to correspond exactly in shape 248 Strength of Materials. (The Artizani. Nov. 1,1861. with the corrugations of the external case. Each lime case when fastenedto the interior tube, as ahove described, fits closely into one of the cor-rugations, through the aperture in which is exposed
The Artizan . h of its surfaces, which are fiat,a metal case containing the lime is fastened every evening before cases, which are open in front, are about 1| inches in breadth at theback, and are dovetailed so as to overlap the edges of the lime, which is insection the segment of a cylinder, so as to correspond exactly in shape 248 Strength of Materials. (The Artizani. Nov. 1,1861. with the corrugations of the external case. Each lime case when fastenedto the interior tube, as ahove described, fits closely into one of the cor-rugations, through the aperture in which is exposed a surface of lime 2Jinches long and 1 inch wide, upon which the flame impinges. When thelime wicks have been inserted ready for lighting, the gases are turned onand lighted, and motion is given to the screw which raises the nut onwhich the tube carrying the lime wicks rests, keeping a fresh surface oflime always exposed to the action of the flame. No further attention isrequired during the burning of the STRENGTH OF MATERIALS. DEDUCED EEOM THE LATEST EJCPEBIMENTS OE BAELOW, BUCHANAN,FAIRBAIEN, HODGKINSON, STEPHENSON, MAJOE WADE, OEDNANCECOEPS, AND OTHEES. By Chaeles H. Haswell, {Continued from page 206.) TO ASCEBTAIN THE VALUES AND THE DIMENSIONS OE BAES Beams, etc, oe taeious Sections. (By Thomas Tredgold.) For a Square, Rectangle, Rectangle the diagonal being vertical, andCylinder, they are alike to those already given, substituting in the rect-angles, for b d-, Ss. Eor a Grooved, or Double-flanged, Open, and Single-flanged Beam theyare as follow. 1. Fixed at one end, Weight suspended from the other. 2. Fixed at both ends, WeigM suspended from the middle. 3. Supported at both ends, Weight suspended from the middle. 4. Supported at both ends, Weight suspended at any other point than themiddle. 5. Fixed at both ends, Weight suspended at any other point than themiddle. Grooved. 5. ZW bd* (1-IW 2i>3) bd- (1- IP3) bd* (1- qp*) m n W bd- m + n (1- IP3)
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