Sash Pulley

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A pulley is a mechanism of a wheel on an axle or shaft that may have a groove between two flanges around its circumference. A rope usually runs over the wheel and inside the groove, if present.

Keywords

pulley, drum, spin, pivot, rotation, ratchet, sash, sheave, caster, gyration

Galleries

Curtains and Window Hardware

Source

Government Printing Office The Official Gazette of the United States Patent Office (Washington, DC: Government Printing Office, 1895)

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