Illustrated catalogue and price-list of drawing and tracing papers, sun print papers and equipments, drawing instruments and materials, surveying instruments, accessories, etc / Kolesch & Company. . degree and then clampedby means of a thumb screw. Perfectly flush and can be used on eitherside. Every half degree from 0° to 45° is marked on the base of thetriangle. The following slopes are indicated on the base, l:lj£, 1:2 \2y2 1-31:4, 1:5, 1:6, 1:8, 1:12, 3:4. For lettering the slopes of A, K, M, N, V, W, X, Y are indicated onthe lower edge of the triangle, and the hypothenuse can be adjusted
Illustrated catalogue and price-list of drawing and tracing papers, sun print papers and equipments, drawing instruments and materials, surveying instruments, accessories, etc / Kolesch & Company. . degree and then clampedby means of a thumb screw. Perfectly flush and can be used on eitherside. Every half degree from 0° to 45° is marked on the base of thetriangle. The following slopes are indicated on the base, l:lj£, 1:2 \2y2 1-31:4, 1:5, 1:6, 1:8, 1:12, 3:4. For lettering the slopes of A, K, M, N, V, W, X, Y are indicated onthe lower edge of the triangle, and the hypothenuse can be adjusted ac-cordingly. There are no better and quicker means for repeating odd angles orfor transplanting same from one board to another. There is not a singlebranch of the draughting profession where the use of this triangle will notbe appreciated. 5147 Adjustable Triangle, 11 inch as described above each, $ Repairs of Triangles Trueing up edges and angles of wooden and celluloid °x60° 6-8 9-10 11-13 14-18 19-21 22-24 inch 45° 5-7 . 8- 9 10-11 12-14 15-18 20-24 « Eacn- $ .20 .25 .30 .35 .45 .65 n6 KOLESCH <fc CO. f*K\ NEW YORK. Transparent Celluloid Triangles, with Notches.
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Keywords: ., bookcentury1900, bookdecade1910, bookidillustratedc, bookyear1917
