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A London encyclopaedia, or universal dictionary of science, art, literature and practical mechanics : comprising a popular view of the present state of knowledge : illustrated by numerous engravings, a general atlas, and appropriate diagrams (1829)

Curtis, Thomas, fl. 1820 · London : Thomas Tegg · leaf 415

An illustration from A London encyclopaedia, or universal dictionary of science, art, literature and practical mechanics : comprising a popular view of the present state of knowledge : illustrated by numerous engravings, a general atlas, and appropriate diagrams, 1829, leaf 415
hree figures. A coil of brass wireof the size suited to the intended pin is placedupon the reel a, which turns loosely upon itsvertical axle at the side of the machine. Theend of the wire is brought forward and passedbetween the pins of the plate b (fig- 3), called astraightening plate, which is… … F{^. 8. n. ^ fc J ir* ■■» ■ a ■ ■ a A * » A

Encyclopedias and dictionaries · Aeronautics

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