Practical Sheet Metal Work and Demonstrated Patterns: A Comprehensive Treatise, Volume 6John Henry Teschmacher David Williams Company, 1911 - Sheet-metal work |
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Practical Sheet Metal Work and Demonstrated Patterns: A ..., Volume 3 John Henry Teschmacher No preview available - 2016 |
Practical Sheet Metal Work and Demonstrated Patterns: A Comprehensive ... John Henry Teschmacher No preview available - 2023 |
Practical Sheet Metal Work and Demonstrated Patterns: A Comprehensive ... John Henry Teschmacher No preview available - 2023 |
Common terms and phrases
A¹ C¹ ball bead blank bolts bottom cast center line chamfer circle copper cornice curved molding dentil diagram distance dotted lines draw a line draw lines draw the line drop hammer edge elevation in Fig ellipse face strip fastened fire pot flange flare flute frustum HALF PATTERN hammering machine hight horizontal line inches line A B lines drawn lines in plan Metal Worker method miter line obtaining the pattern ogee operation outer parallel pattern for face pediment piece pipe plan and elevation plaster plaster of Paris project lines radii radius raised right angles riveted roof sal ammoniac scratch awl scroll scroll saw seams sheet metal shown in Fig side view similar numbers sink strip small figures soffit stays stretched stretchout surface Trace a line triangles true section vertical line wall line WILLIAMS COMPANY zinc
Popular passages
Page 33 - At any convenient point opposite the front elevation draw any vertical line, as T U. Extend the lines from the spaces in the profile AB until they intersect the vertical line TU as shown. Now, measuring in every instance from the point S in plan, take the various distances to the num\ E Fig.
Page 114 - EF and through the intersections 1' to 17' draw lines intersecting the curves of the pattern 1°-17° on both sides. From these intersections, shown on one side only, drop lines intersecting similar numbered lines, drawn from the intersections in the profile of the scroll in section parallel to A B.' To avoid a confusion of lines the points lx, 3x, 5x, 7x, 10x, 12x, and 17x have only been intersected.
Page 34 - Trace a line as shown, when 1" to 6" to Y will be the true section on the line SK in plan. It should be understood that the usual method for making the bottom of bays round in plan is to divide the profile of the moulding into such parts as can be best raised or stretched. Assuming that this has been done, take the distance from...
Page 32 - ... in (B) in Fig. 27 as radius. Proceed in this manner, using alternately as radii first the divisions in Fig. 28, then the length of the slant lines in (B) in Fig. 27, the divisions on 7 H in plan, then again the slant lines in B, until the line 1-2 in Fig. 29 is obtained.
Page 34 - SK in plan, and place it as shown from the line TU to K1 ; then again, take the distance from S to 2" in plan, and place it as shown from the line TU to 2" on line 2 in section. Proceed in this manner until all the points in the true section have been obtained. Trace a line as shown, when 1" to 6" to Y will be the true section on the line SK in plan.
Page 29 - Fig. 96, and using 8 as center and 8' 7' in Fig. 93 as radius draw the arc 7, which intersect by an arc struck from 1 as center and 1' 7' in Fig. 95 as radius. Then using 1' 2' in Fig. 93 as radius draw the arc 2, which intersect by an arc struck from 7 as center and 7' 2
Page 117 - NEW METAL WORKER PATTERN BOOK A TREATISE ON PATTERN CUTTING AS APPLIED TO ALL BRANCHES OF SHEET METAL WORK By Geo. W.
Page 114 - Fig. 143. edge and bending it as required. Then will 1° 1° 17° 17° be the pattern for the scroll using heavy metal. If it is desired to know how this scroll will look when rolled up, then at right angles to EF and through the intersections 1' to 17' draw lines intersecting the curves of the pattern 1°-17° on both sides.
Page 73 - Then make a triangle shown by EFGH from metal or wood strips and stiffen it by the cross brace EF, constructing it so that the vertex comes at d, and the strips EG and FH touch the nails at a and b. Moving the triangle, and always keeping the sides touching the nails at a and b, the arc may be traced by a pencil held at d and as shown by ad b.