Blueprint reading; a practical manual of instruction in blueprint reading through the analysis of typical plates with reference to mechanical drawing conventions and methods, the laws of projection, etc . -inch hole of a maximum tolerance of inch above size andthe outside diameter is inches with a minimum tolerance inch. The punching is provided with a keyway | inch wideand ^ inch deep. The outer rim is provided with eighty-three slottedholes equally spaced around the circumference. An enlarged viewof these slots is placed just to the right of the complete no
Blueprint reading; a practical manual of instruction in blueprint reading through the analysis of typical plates with reference to mechanical drawing conventions and methods, the laws of projection, etc . -inch hole of a maximum tolerance of inch above size andthe outside diameter is inches with a minimum tolerance inch. The punching is provided with a keyway | inch wideand ^ inch deep. The outer rim is provided with eighty-three slottedholes equally spaced around the circumference. An enlarged viewof these slots is placed just to the right of the complete notes with arrowhead pointers give all the slot dimensions. PLATE XXIV, Nos. 1 and 2 DETAILS OF TYPICAL FIELD PUNCHINGSField Punching. In Plate XXIV are shown two blueprints ofwhich No. 1 is a field punching punched from soft sheet steel,standard quality, inch thick. One complete view, only isgiven but, as in the blueprints shown in Plate XXIII, there is anenlarged view of the slots. This enlarged view gives completedetails of the slots and the exact dimensions with all limiting tol-erances. A note placed below the complete view tells us that the 5P TMWD AN6LL PROJECTION 5IMILAR TO PUNCH 10154. ,, + .002 MAX. PUNCHED PART 57ff/ 5t1£ET SOFT MATERIALSTANDARD THICK PR/NTS TO- 49 9 3412^OP58Z8A21 ,+.002 MAX. .„+.0OZMAX.
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License: Licensed
Model Released: No
Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectmechanicaldrawing
