Machine construction and drawing, Volume 11873 |
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16 Maps arcs of circles ATLAS axis belt bevel wheels bolts boss bottom centre line circle whose centre circular cloth lettered collar colour connecting-rod crank cross-section curved surface cylindrical diagonal diameter dimensions direction distance dotted lines drawn full eccentric eleva employed equal example fcap figures fixed front and end-elevation front-elevation given circle given point given radius given straight line half inches intersection Join Joseph Whitworth left-hand length LL.D object obtained oil-cup pedestal perpendicular pinion pitch circle pitch line plan and elevation plane Plate XXVII portion position projection rack and pinion radii radius represent required circle revolution revolutions per minute right angles right-handed S₁ S₂ scale sectional elevation shade lines shaft sheave showing feet shown in figs slide G slide-rest sliding piece spur wheels square-threaded screw strap teeth tion tooth touch the given true form width