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Scientific American, Vol. 39, No. 20 (1878) (1878)

leaf 4

An illustration from Scientific American, Vol. 39, No. 20 (1878), 1878, leaf 4
ric carried in and by asingle frame, and inclosed in a case of pump. neat appearance and of compact form and size; provision On a solid bed frame of suitab’e size is supported a is made for operating and regulating the various parts from closed cylinder, T. At the imside of the cylinder is a large… … the oscillating cylinder by a piston rod with a construction and easily operated. An improved Post Hole Digger has been patented second crank of the flywheel shaft, it is obvious that by Mr. Charlton Patterson, of Rock Island, Ill. This inven- authorized by the Board of Trade under the following…

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