lve. locomotive, T. Tripp.. 4001, 374 . Rollstone Machine Co., Valve, regulating, W. Vogel me ‘400.275 The photographing achin Brig es, Factories, and on Work of aL ect tion, Write us for samples. Photographic shutter, H. Herbert... Vaporizer and superheater, retort, S. D. Biddivon. 400,291 48… … Pulley wheel, grip, R. P. Walsh. « 400,276 Washing machines. reversing gearing for, J. M. Pump, W.M.Scott............ccecee ce seees ces eeeeeeee 400.124 Oakley..........2c-crsccccesceacee ettecnseces eecoes JusT our: ADVICE TO YOUNG MECHANICAL Pump actuated by fluid pressure, W. Donaldson..…
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