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2. Cornish engine valve gear - Wikipedia

   en.wikipedia.org/wiki/Cornish_engine_valve_gear

   The valve gear of the Taylors pumping engine at Pool showing the ends of the three arbors. The central, equilibrium arbor, has a catch resting on it which, when raised by the cataract loop on the cataract rod, will release the quadrant. This will then be turned in an anticlockwise direction by the attached weight and open the valve.

3. Flow control valve - Wikipedia

   en.wikipedia.org/wiki/Flow_control_valve

   Control valves are normally fitted with actuators and positioners. Pneumatically-actuated globe valves and diaphragm valves are widely used for control purposes in many industries, although quarter-turn types such as (modified) ball and butterfly valves are also used. Control valves can also work with hydraulic actuators (also known as ...

4. Valve timing - Wikipedia

   en.wikipedia.org/wiki/Valve_timing

   With traditional fixed valve timing, an engine will have a period of "valve overlap" at the end of the exhaust stroke, when both the intake and exhaust valves are open. The intake valve is opened before the exhaust gases have completely left the cylinder, and their considerable velocity assists in drawing in the fresh charge. Engine designers ...

5. Cornish engine - Wikipedia

   en.wikipedia.org/wiki/Cornish_engine

   Two examples also survive at the Cornish Mines and Engines museum on the site of East Pool mine near the town of Pool, Cornwall. Another example is at Poldark Mine at Trenear, Cornwall – a Harvey of Hayle Cornish Beam Engine from about 1840–1850, originally employed at Bunny Tin Mine and later at Greensplat China Clay Pit, both near St ...

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7. Ball valve - Wikipedia

   en.wikipedia.org/wiki/Ball_valve

   A ball valve is a flow control device which uses a hollow, perforated, and pivoting ball to control fluid flowing through it. It is open when the hole through the middle of the ball is in line with the flow inlet, and closed when it is pivoted 90 degrees by the valve handle, blocking the flow. [1]

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   help.aol.com/products/aol-mail-verizon

   AOL Mail gives you the personalized mail experience you've always wanted. Learn how to update your settings to make AOL Mail look and feel exactly how you need it. Netscape Internet Service (ISP) · Jan 30, 2024

9. Remove Banner Ads with Ad-Free AOL Mail | AOL Products

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