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American Protective Tariff League

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The Iron Age 1883-04-12: Vol 31 Iss 15

1883 Reed Business Information US

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XXX: No. Large Testing Machine. Messrs. Tinius Olsen & Co., of Philadel- phia, Pa., have recently compieted a testing machige for Messrs. Brown, /Konnell & Co., of Youngstown, Ohio, which has a capacit ef 200,000 pounds, The by screw-gearing, instea pressure, as heretofore used in such large machines, thereby insuring a gradually in- creasing strain and freedom from shocks for the test-pieces. The preservation of the knife-edges under the lever-bearings is sought to be accomplished by spring cushions, which it is claimed will prevent hammer- ing on the pivots, and thereby’ greatly wer is obtained aid in maintaining the accuracy_of the machine and its adjustment. All the parts of the machine are above the floor line, and therefore easily accessible. It is provided with the necessary attach- ments for tensile, compressive and trans- verse testing, among which may be mentioned the patent -bearing wedges. A noticeable feature of the machine is the fact that four straining screws are uged instead of two, as is usual in other similar appliances. This admits of smaller diame- ters for the screws, and, together with the fact that the steps of the screw are carried on friction rolls, and no…

Citation

The Iron Age 1883-04-12: Vol 31 Iss 15. Reed Business Information US. 1883.