. COMBINED TOOL. Of late many useful combinations in tools have been in-vented and patented, many of which have found much favorv(ith the public, and met with an extensive sale. Our en-graving shows a neat combination of this kind patented No-vember, 1868, by John D. Wilkinson and E. 0. Boyle,… … are pivoted together by a single sciew pivot, as shown, mak-ing a device tasty in appearance, compact, and capable of allthe uses to which the elementary tools composing it are ap-plicable. American Zinc Ores, Though the ores of zinc are abundantly concentrated invery many of the other States, yet,…
Patents · Iron · Machinery · Naphthaline · Machine · Scientific American · Railroad · Short time · Sewing machine · Antedated january · Steel cylinder · Carbonic acid · Stand pipe · Perpetual motion · Letters patent · Jersey city
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