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Scientific American, Vol. 44, No. 17 (1881) (1881)

leaf 4

An illustration from Scientific American, Vol. 44, No. 17 (1881), 1881, leaf 4
their centers. sists of a coupling link having a rack prolongation which is “« Road to Ruin.” It will be understood that probably not entered into the draw head and operated by a pinion, and of the atmospheric pressure. These drums are distended or a swinging coupling pin operated in a vertical… … opened and closed easily and quickly. placed upon the frame of the instrument. REGISTERING BAROMETER. An improved furnace for locomotive and other Every week the observer changes the paper upon steam boilers has been patented by Mr. John Alves, the cylinder, puts a little ink in the pen, winds up…

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