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Scientific American, Vol. 20, No. 8 (1869) (1869)

leaf 7

An illustration from Scientific American, Vol. 20, No. 8 (1869), 1869, leaf 7
f work? If blinds to windows can be opened and closed in all weath- It is not a question of economy of fuel, it is a question of life ers without raising the window, the device that enables this and death ; and, therefore, while the arrangements for apply- to be done is valuable. In winter, raising… … for setting the teeth. “Eachapparatus requires about 5-horse With these appliances any man who can tend the brakes mission of dust-is annoying ; at any time or season, the dan- power of steam to work them, and they would raise one thous and set the log can keep the saw in order. ger of falling by…

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