Inside Out Library · Explore

Scientific American, Vol. 25, No. 24 (December 1871) (1871)

leaf 7

An illustration from Scientific American, Vol. 25, No. 24 (December 1871), 1871, leaf 7
or precipitating soot and smoke it. It also spares the workmen exposure to the intense heat iron, or other suitable material. arising from steam boilers, etc., in coal mining and under- to which they are subjected in the old method of setting By this improved means, the inventor claims to make the… … These testimonials from practical men show that the in- The principle of the invention is at o:ice seen on reference to the authority of the United Railroad Companies of New Jer- vention is worthythe attention of railway officials andbuild- sey, and the immediate direction of Mr. Francis B.…

Patents · Iron · Consists · Steel · Heat · Scientific American · Air · Specific heat · Box oil · Winter sperm · Dated november · Engine oil · Car box · Letters patent · Soluble glass · Iron ore

Internet Archive · Public domain (published before 1931). Free to use for anything.

More pictures from Scientific American, Vol. 25, No. 24 (December 1871)

More like this