Machinery and processes of the industrial arts, and apparatus of the exact sciences (1869)
Barnard, Frederick A. P. (Frederick Augustus Porter), 1809-1889 · Washington, Govt. print. off. · leaf 220
greater. But the purposes to which the appar- .eils sterhydrauliqiies are applied are morevarious than would be anticipated in re-garding them as simply presses. One ofthese is for testing the tenacity of wireunder a force of longitudinal tension. Inexperiments of this description, it is im-portant… … Apparatus for testing the tensilestrength of wire. 204 PARIS UNIVERSAL EXPOSITION. furnish an exact measure of a resistance which may fall between itssuccessive values. The steimydraulicgauge is not liable to either ofthese objections. Its construction will be made intelligible by an exam-ination…
Machinery · Scientific apparatus and instruments
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