used in making the cylinder and passages is most satisfactorily obvi- 800. In one shop I saw a 4 horse power petroleum en- a 30 ft. pipe 6 in. in diameter. In welding, the sheets ated, as I have myself verified by careful examina- gine doing ordinary duty in a perfectly satisfactory are so placed… … of floor space. has all the advan- MACHINE FOR MAKING SPIRALLY WELDED TUBES. One end of the tages of a gas en- ribbon of skelp is placed upon a guide table, which is engine and boiler, which has now baen entirely dis gine, without being dependent on gas works and a gas set at an angle varying with…
Patents · Contained · Patented · Telescope · Scientific American · American supplement · Address munn · Horse power · Express money · Electric light · Declination axis · Slow motion · Water gas · Practical treatise
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