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Mechanical drawing self-taught: comprising instructions in the selection and preparation of drawing instruments, elementary instruction in practical mechanical drawing together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers (1883)

Rose, Joshua · Philadelphia, H.C. Baird & Co.; London, S. Low, Marston, Searle & Rivington · leaf 339

An illustration from Mechanical drawing self-taught: comprising instructions in the selection and preparation of drawing instruments, elementary instruction in practical mechanical drawing together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers, 1883, leaf 339
Scale A. Fig Ifoot.315- iron columns, these being riveted to the boiler shellangle pieces which rest upon the columns. The heatand products of combustion pass from the furnacealong the bottom of the boiler, and at the end pass into 2q8 mechanical drawing SELF-TAUGHT. and through the tubes an4… … IProiit ElevationFig. 317. bridc^c wall an opening;-, and its service is to admit airto the gases after they have passed the britlge wall, andthus complete the combustion of such gases as may

Mechanical drawing

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