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"An improved form of apparatus for the fractionation [sic] is represented in fig. 9." —The Encyclopedia Britannica 1910

Apparatus Designed for Spectroscopic Examination

"An improved form of apparatus for the fractionation [sic] is represented in fig. 9." —The Encyclopedia…

"An apparatus for extracting spikes, as from a rail. a, rail; b, spike to be extracted; c, fulcrum-piece hooked over the rail and supported on the sleeper d; e, claw-lever, with a heel shown in dotted outline, which is passed through a slot in the fulcrum-piece." —Whitney, 1889

Spike Extractor

"An apparatus for extracting spikes, as from a rail. a, rail; b, spike to be extracted; c, fulcrum-piece…

Steam spraying apparatus constructed by the Shade and Fruit Tree Protective Association of New York.

Steam Spray Apparatus

Steam spraying apparatus constructed by the Shade and Fruit Tree Protective Association of New York.

"To measure the depth of; fathom; try or test, as the depth of water and the quality of the ground, by sinking a plummet or lead attached to a line on which is marked the number of fathoms...a and b, arms pivoted to c; d, lead, which is attached to a stem at the top of which is a crosspiece. When the arms are raised into the position shown in A, the crosspiece engages them and holds them in that position till the lead strikes the bottom; they are then released, and fall into the position show in B. The cups (shown in the cuts), on closing, scoop up a specimen of the bottom." —Whitney, 1889

Taselli's Sounding Apparatus with Cups Opened and Closed

"To measure the depth of; fathom; try or test, as the depth of water and the quality of the ground,…

Apparatus for breaking a plate of glass by torsion, with an example of results produced.

Torsion Apparatus

Apparatus for breaking a plate of glass by torsion, with an example of results produced.

"We may compare currents by the quantities of a given electrolyte which they decompose in a given time. Faraday's voltameter is intended for this purpose. As compared with a galvanometer, the voltameter has the obvious disadvantage that it cannot measure a current at once, but only after the current has been flowing for some time." -Hazeltine, 1894

Faraday's Voltameter

"We may compare currents by the quantities of a given electrolyte which they decompose in a given time.…

The Wimshurst Machine is an electrostatic device to generate high voltages. "It consists of two circular glass plates, mounted on a common spindle, and capable of rotation in opposite directions with equal speeds. Each plate carries twelve or sixteen strips of thin sheet-metal, fixed radially at regular intervals apart ... At the extremities of the horizontal diameter of the plates the main conductors are placed, insulated on glass or vulcanite pillars." -Hazeltine, 1894

Wimshurst Machine

The Wimshurst Machine is an electrostatic device to generate high voltages. "It consists of two circular…

A windlass is an apparatus for moving heavy weights. Typically, a windlass consists of a horizontal cylinder (barrel), which is rotated by the turn of a crank or belt. A winch is affixed to one or both ends, and a cable or rope is wound around the winch, pulling a weight attached to the opposite end.

Chinese Windlass

A windlass is an apparatus for moving heavy weights. Typically, a windlass consists of a horizontal…