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2. Poulan - Wikipedia

   en.wikipedia.org/wiki/Poulan

   Poulan was founded as Poulan Saw Co. in 1946 by chainsaw pioneer Claude Poulan in Shreveport, Louisiana. Purchased in late 1950s or early '60 by the Beaird Company, also of Shreveport, it was known as Beaird-Poulan.

3. Centrifugal clutch - Wikipedia

   en.wikipedia.org/wiki/Centrifugal_clutch

   A chainsaw's clutch. The chain wraps around a sprocket behind the clutch that turns with the outer drum. The input of the clutch is connected to the engine crankshaft while the output may drive a shaft, chain, or belt. As engine revolutions per minute increase, weighted arms in the clutch swing outward and force the clutch to engage. The most ...

4. Rope start - Wikipedia

   en.wikipedia.org/wiki/Rope_start

   Starting a Lazair II ultralight aircraft's JPX PUL 425 engine, equipped with a recoil starter. A rope start device housed in a Nose bullet of a Junkers Jumo 004 turbojet.. Rope start (also called ripcord [citation needed], pull start [citation needed], or rewind start [citation needed]) is a method of starting an internal combustion engine, usually on small machines, such as lawn mowers ...

5. Clutch - Wikipedia

   en.wikipedia.org/wiki/Clutch

   The clutch consisted of a wrap-spring clutch-brake that was coupled to the rotor by one or two stages of reduction gearing. The clutch-brake locked up when rotated backwards, but also had some spring action. The inertia of the rotor going backwards engaged the clutch and wound the spring. As it unwound, it restarted the motor in the correct ...

6. Sprag clutch - Wikipedia

   en.wikipedia.org/wiki/Sprag_clutch

   One-way bearing combining sprags and bearing rollers in one race Sprags jam when driven and slide when in reverse. A sprag clutch is a one-way freewheel clutch.It resembles a roller bearing but, instead of cylindrical rollers, non-revolving asymmetric figure-eight shaped sprags, or other elements allowing single direction rotation, are used.

7. Claude Poulan - Wikipedia

   en.wikipedia.org/wiki/Claude_Poulan

   Claude Casper Poulan (1915–1995) of Monroe, Louisiana was the founder of Poulan Chain Saws and the inventor of the bow guide.. In 1944, Poulan was supervising German prisoners cutting pulpwood in East Texas.

8. Fan clutch - Wikipedia

   en.wikipedia.org/wiki/Fan_clutch

   A fan clutch is a thermostatic engine cooling fan that can freewheel at low temperatures when cooling is not needed, allowing the engine to warm up faster, relieving unnecessary load on the engine. As temperatures increase, the clutch engages so that the fan is driven by engine power and moves air to cool the engine.

9. Model rocket motor classification - Wikipedia

   en.wikipedia.org/wiki/Model_rocket_motor...

   The designation for a specific motor looks like C6-3.In this example, the letter (C) represents the total impulse range of the motor, the number (6) before the dash represents the average thrust in newtons, and the number (3) after the dash represents the delay in seconds from propelling charge burnout to the firing of the ejection charge (a gas generator composition, usually black powder ...