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2. Telescoping (mechanics) - Wikipedia

   en.wikipedia.org/wiki/Telescoping_(mechanics)

   Telescoping in mechanics describes the movement of one part sliding out from another, lengthening an object (such as a telescope or the lift arm of an aerial work platform) from its rest state. [1] In modern equipment this can be achieved by a hydraulics , but pulleys are generally used for simpler designs such as extendable ladders and amateur ...

3. Universal joint - Wikipedia

   en.wikipedia.org/wiki/Universal_joint

   A universal joint. A universal joint (also called a universal coupling or U-joint) is a joint or coupling connecting rigid shafts whose axes are inclined to each other. It is commonly used in shafts that transmit rotary motion. It consists of a pair of hinges located close together, oriented at 90° to each other, connected by a cross shaft.

4. Telescoping bolt - Wikipedia

   en.wikipedia.org/wiki/Telescoping_bolt

   A telescoping bolt (also known as an overhung bolt) is a firearm bolt which telescopes over, that is, wraps around and past, the breech end of the barrel. This feature reduces the required length of a weapon such as a submachine gun significantly, and it allows compact designs to be balanced around the pistol grip in a way that gives ...

5. Drive shaft - Wikipedia

   en.wikipedia.org/wiki/Drive_shaft

   A drive shaft, driveshaft, driving shaft, tailshaft (Australian English), propeller shaft (prop shaft), or Cardan shaft (after Girolamo Cardano) is a component for transmitting mechanical power, torque, and rotation, usually used to connect other components of a drivetrain that cannot be connected directly because of distance or the need to ...

6. Crankshaft - Wikipedia

   en.wikipedia.org/wiki/Crankshaft

   The crankshaft is a rotating shaft containing one or more crankpins, [1] that are driven by the pistons via the connecting rods. [2] The crankpins are also called rod bearing journals, and they rotate within the "big end" of the connecting rods. Most modern crankshafts are located in the engine block.

7. Assistive cane - Wikipedia

   en.wikipedia.org/wiki/Assistive_cane

   The collar of a cane may be only a decorative addition made for stylistic reasons, or may form the structural interface between shaft and handle. Shaft. The shaft of the cane transmits the load from the handle to the ferrule and may be constructed from carbon fiber polymer, metal, composites, or traditional wood. Ferrule. The tip of a cane ...

8. Mecanum wheel - Wikipedia

   en.wikipedia.org/wiki/Mecanum_wheel

   A wheelchair using Mecanum wheels Container loader with numerous powered Mecanum wheels for shifting and rotation of containers.. The Mecanum wheel is a form of tireless wheel, with a series of rubberized external rollers obliquely attached to the whole circumference of its rim.