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 . h will throw off the oil inside the bearing housing. Thesedeflectors are shown on a larger scale so that the details can begiven more clearly. Sections through the shaft for the purposeof showing the key ways are also given. Note how the finish isgiven according to whether it is for a fit with some other part oris a polished journal finish. Couplings. The coupling is also shown on this plate, sinceit forms a
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 . h will throw off the oil inside the bearing housing. Thesedeflectors are shown on a larger scale so that the details can begiven more clearly. Sections through the shaft for the purposeof showing the key ways are also given. Note how the finish isgiven according to whether it is for a fit with some other part oris a polished journal finish. Couplings. The coupling is also shown on this plate, sinceit forms a part of the shaft. The dimensions are given in decimalswhere they affect the other half coupling which will be furnishedby the manufacturer of the prime mover to which the machine isto be coupled. The keys are called for in the title table by dimensions, noother information being necessary. It will be noted that only enough of the sections of armaturespider and commutator shell are shown to give their location onthe shaft and furnish needed dimensions. DETAILS OF FIELD FRAME AND COILS Having completed the revolving member, we now turn ourattention to the magnet frame, fields, 240 MACHINE DRAWING PLATE H. MAGNET FRAME AND BASE General Details. The details of the magnet frame are coveredby Plate H. Certain dimensions here are fixed by the electricaldesign in order to give the proper amount of iron in the frame,the proper size field cores, and proper spacing of fields. The frameis made split horizontally at the center line, and the two parts aresymmetrical, except that the lower half must have proper feetat the points where it rests on the base. Only one of the lowerquarters, Figs. 1 and 2, is shown in the drawing, since this will giveall necessary dimensions and instructions for the entire frame andthe lower half is symmetrical about a vertical center line. Arrangements for Bolting Frame and Pole Pieces. The workon this drawing consists mostly of locating and dimensioning t
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Keywords: ., bookcentury1900, bookdecade1910, bookpublis, booksubjectmachinery
