Machine drawing; a practical guide to the standard methods of graphical representation of machines, including complete detail drawings of a duplex pump and of a direct-current generator . king the extrawidth for the shaded lines on the inside of the proper lines. Thisleaves the outside measurement of the piece unchanged for possible Fig. 12. Location of Shade Lines for Piecewith Hole MACHINE DRAWING scaling. Some draftsmen claim that they can make the heavyshade lines as they go along, thus avoiding the second inking, butin the long run it will be found that time will be saved, more uniformlin
Machine drawing; a practical guide to the standard methods of graphical representation of machines, including complete detail drawings of a duplex pump and of a direct-current generator . king the extrawidth for the shaded lines on the inside of the proper lines. Thisleaves the outside measurement of the piece unchanged for possible Fig. 12. Location of Shade Lines for Piecewith Hole MACHINE DRAWING scaling. Some draftsmen claim that they can make the heavyshade lines as they go along, thus avoiding the second inking, butin the long run it will be found that time will be saved, more uniformlines and fewer blots made, if theprocess of shading be accom-plished by a second inking. Fig. 12 is similar to Fig. 11but with a hole instead of a lug,and the difference in shade linesshould be noted. Fig. 13 is the same as with a round boss and thelower right-hand corner rounded. Fig. 14 is a plain washer,Fig. 15 a common hexagonal nut. Fig. 16 is a washer or diskwith a shaft in it. The right-and left-hand views are shown to bring out the point that the shaftprojecting on the right has its end shaded, while on the left, beingflush with the face of the disk, it is not Fig. 13. Location of Shade Lines forRounded Corner
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Keywords: ., bookcentury1900, bookdecade1910, bookpublis, booksubjectmachinery
