. Locomotive engineering : a practical journal of railway motive power and rolling stock . is line for as many rivet holes as re-quired. Draw a line Yz inch inside of therivet holes for lap, and the sheet is com-plete. FRUSTUM OF A CONE INTERSECTING ACYLINDER AT RIGHT .-VNGLES. Fig. 145 is an elevation of a frustum ofa cone intersecting a cylinder at rightangles to their axes. Figs. 146 and 147 arethe outline views necessary to la\ out thesheets. Draw A B and CD parallel and9 inches apart, then E F parallel and 14inches, the height of the frustum, fromC D. Next, the center lines G H I andJ K L
. Locomotive engineering : a practical journal of railway motive power and rolling stock . is line for as many rivet holes as re-quired. Draw a line Yz inch inside of therivet holes for lap, and the sheet is com-plete. FRUSTUM OF A CONE INTERSECTING ACYLINDER AT RIGHT .-VNGLES. Fig. 145 is an elevation of a frustum ofa cone intersecting a cylinder at rightangles to their axes. Figs. 146 and 147 arethe outline views necessary to la\ out thesheets. Draw A B and CD parallel and9 inches apart, then E F parallel and 14inches, the height of the frustum, fromC D. Next, the center lines G H I andJ K L at right angles to A B. From Hand K, with a radius of 5 inches, as thefrustum is 12 inches in diameter at thetop, draw the semi-circles, and from _/, witha radius of 9 inches, draw the circle to rep-resent the main pipe ; mark off on the lineCD, 12 inches each .side of the center lines,for the diameter of the frustum at thatpoint. Draw lines through the marks forthe diameters on lines C D and E F, andthey will cut each other at / and L. Spaceoff both semi-circles into 7 points, number. threes successively, and mark these pointsupon the line E F. Then draw ordinatesthrough these points, terminating at / andL. Again draw lines parallel to CD, tocut the ordinates in Fig. 146 through thepoints where the ordinates of the samenumber cut the circle in Fig. 147. This 232 same thickness as the material in the pipe,keeping it just up to but inside of the cir-cle. Mark upon this strip the points wherethe ordinates cut the circle, numberingthem same as the ordinate forming thepoint. Lay this strip upon Fig. 149, along-side of the line Ji S, with the No. 4 point located where the center of the frus-tum is to be located; mark these pointsupon this line, numbering them same ason the strip; draw lines through thesepoints at right angles to R S; measure thedistance between the ordinates in Fig 146where they cut the cylinder at and below Additional Information on Air-BrakeHandling—Examiners C
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
