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2. Croesor quarry - Wikipedia

   en.wikipedia.org/wiki/Croesor_Quarry

   A sale notice dating from 1874 indicated that in addition to sawing tables, there were also planing tables, slate dressing machines, two 12 hp (8.9 kW) steam locomotives and stables. [5] The locomotives were 0-4-0 VB vertical-boilered tank engines with vertical cylinders, manufactured by De Winton of Caernarfon .

3. Centrifugal fan - Wikipedia

   en.wikipedia.org/wiki/Centrifugal_fan

   Figure 1: Components of a centrifugal fan An external motor belt driven inline centrifugal fan discharging inline to the exterior of a building through a duct. Unlike non-inline/non-concentric impeller casing design with a cutoff blade above, the concentrically symetric cylinder casing and impeller geometry of inline type redirects the outflow around so that it is parallel to the inflow of gases.

4. Ceiling fan - Wikipedia

   en.wikipedia.org/wiki/Ceiling_fan

   A spinner fan with light kit A modern three blade spinner fan from India. Direct-drive ceiling fans employ a motor with a stationary inner core with a shell, made of cast iron, cast aluminum, or stamped steel, that revolves around it (commonly called a "spinner" motor). The blades are attached directly to this shell.

5. Fan disk - Wikipedia

   en.wikipedia.org/wiki/Fan_disk

   Diagram of a fan disk Fan disk assembly diagram, showing one blade and attachment hardware Cross section of fan disk Failed fan disk recovered from the center engine of UAL 232. A fan disk is the central hub of a fan in a turbofan engine. Fan blades are attached to the fan disk, which is rotated by a shaft driven by a gas turbine. [1]

6. Wide chord - Wikipedia

   en.wikipedia.org/wiki/Wide_chord

   The wide chord fan on a Rolls-Royce Trent 970B- 84 installed on a British Airways Airbus A380. Wide chord describes the fan blades on certain turbofan engines that have a blade design with a specific geometry - In layman's terms, they would be described as having wider blades than other jet engines.

7. The best stationary bikes for seniors in 2025 - AOL

   www.aol.com/lifestyle/best-stationary-bikes...

   Its ergonomic seat and high-backed mesh backrest deliver a comfortable ride, the extra-large foot pedals provide good stability and grip, and the built-in fan and convenient bottle holder help you ...