Saws: The History, Development, Action, Classification, and Comparison of Saws of All Kinds, with Copious Appendices, Giving the Details of Manufacture, Filing, Setting, Swaging, Gumming, &c.; Care and Use of Saws; Tables of Gauges; Capacities of Saw Mills; Lists of Saw Patents; and Other Valuable Informations

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E. Claxton & Company, 1882 - Saws - 279 pages
 

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Page 171 - A Supplement to the above; containing additional practical matter, more especially relating to the forms of Saw Teeth for special material and conditions, and to the behaviour of Saws under particular conditions. With 120 illustrations, cloth, gs.
Page 152 - Each sized log has been scaled so as to make all that can be practically sawed out of it, if economically sawed, each log to be measured at the top or small end, inside of the bark, and if not round, to be measured two ways, at right angles, and the difference taken for the diameter. Where there are any known defects, the amount deducted should be agreed upon by the buyer and seller, and no fractions of an inch to be taken into the measurement.
Page 22 - Muhlsage, mill-Haw) comes under the head of blades guided at both ends but unstrained. It has a pull cut and very rapid cutting speed, exceeding; in this respect the sash saw, which by reason of the inertia of the frame is more limited in speed. Its use is mainly in the Western States of America ; and it is in its inception essentially bold and American. There being but little of the blade exposed unguided, its use at high speed is, however, quite safe. The mulay saw for logs is generally 10...
Page 129 - The index shows the pitch at which the file is set, and a rod passes through holes in the graduated ring, and guides the file. The frame upon which the ring is held slides in grooves cut on each side of the vice in which the saw is fixed; a table connected with the guide is arranged and indexed, so as to give the required bevel and pitch for the kind of saw to be filed, and it is only necessary to set the ring for the bevel and the indicator for the pitch, and the apparatus is ready for use. As the...
Page 266 - England for several years, or rather generations; but in 1768, an unlucky timbermerchant, hoping that after so long a time the public would be less watchful of its own interests, made a rash attempt to construct another mill. The guardians of the public welfare, however, were on the alert, and a conscientious mob at once collected and pulled the mill to pieces.
Page 266 - The old practice in making boards was to split up the logs with wedges ; and inconvenient as the practice was, it was no easy matter to persuade the world that the thing could be done in any better way. Saw-mills were first used in Europe in the...
Page 153 - In this table we have varied the size of the slab in proportion to the size of the log, and have arranged it more particularly for large logs, by taking them in sections of 12 feet and carrying the table up to 96 inches in diameter.
Page 22 - The mulay saw for logs is generally 10 to 12 inches wide and ^ inch thick, and making strokes of 20 to 24 inches at the rate of from 300> to 400 revolutions per minute, giving a cutting speed of about 600 feet per minute. Mulay saws, when first introduced, were full inch thick.
Page 266 - The first saw-mill was established by a Dutchman, in 1663; but the public outcry against the newfangled machine was so violent, that the proprietor was forced to decamp with more expedition than ever did Dutchman before The evil was thus kept out of England for several years, or rather generations; but in 1768, an...

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