Inside Out Library · Explore

Scientific American, Vol. 28, No. 7 (February 1873) (1873)

leaf 0

An illustration from Scientific American, Vol. 28, No. 7 (February 1873), 1873, leaf 0
ulty of articulate speech. with charcoal and open forge fires. The hammer used in forging them is 11 tuns in weight and has a ten foot stroke. and serves throughout its whole length as a bearing for the The lecturer gave various illustrations of the essential dif- It is believed to be the largest… … mon objects, such as father, IMPROVED BORING MACHINE. vice occupies but little room mother, brother, etc., are ab- and will do twice the work of in the country. The time consumed in making and finish- a lathe for the same purpose. It will bore any sized wheel, stract terms, and unless Mr. Darwin is…

Patents · Boiler · Canal · Improved · Iron · Scientific American · Valve · Cube root · Canal boat · Patent office · Square inch · Foreign matter · Trade catalogs · Coloring matter · Fire wab · Tracing point

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

More pictures from Scientific American, Vol. 28, No. 7 (February 1873)

More like this