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  2. Glossary of shapes with metaphorical names - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_shapes_with...

    Some of these names are "classical terms", i.e., words of Latin or Ancient Greek etymology. Others are English language constructs (although the base words may have non-English etymology). In some disciplines, where shapes of subjects in question are a very important consideration, the shape naming may be quite elaborate, see, e.g., the ...

  3. Master cylinder - Wikipedia

    en.wikipedia.org/wiki/Master_cylinder

    The most common vehicle uses of master cylinders are in brake and clutch systems.. In brake systems, the operated devices are cylinders inside brake calipers and/or drum brakes; these cylinders may be called wheel cylinders or slave cylinders, and they push the brake pads towards a surface that rotates with the wheel (this surface is typically either a drum or a disc, a.k.a. a rotor) until the ...

  4. Glossary of firearms terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_firearms_terms

    Revolver speedloaders are used for revolvers having either swing-out cylinders or top-break cylinders. Spitzer bullet: An aerodynamic bullet design. Sporterising, sporterisation, or sporterization: The practice of modifying military-type firearms either to make them suitable for civilian sporting use or to make them legal under the law.

  5. Glossary of motorsport terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_motorsport_terms

    Drivers race on the apron at Chicagoland Speedway (the area between the white and yellow lines). aero cover See wheel shroud. air jacks Pneumatic cylinders strategically mounted to the frame near the wheels of a racing car, which project downwards to lift the car off the ground during a pit stop to allow for quick tire changes or provide mechanics access to the underside of the car for repairs.

  6. Hydrolock - Wikipedia

    en.wikipedia.org/wiki/Hydrolock

    Bent connecting rod after Hydrolock Same connecting rod, turned 90°. Hydrolock (a shorthand notation for hydrostatic lock or hydraulic lock) is an abnormal condition of any device which is designed to compress a gas by mechanically restraining it; most commonly the reciprocating internal combustion engine, the case this article refers to unless otherwise noted.

  7. Glossary of locksmithing terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_locksmithing_terms

    Master pins are also called master wafers. Plug The plug is the part of a cylinder lock which is designed to turn when a key is inserted. Plug follower A plug follower is a device used in the assembly and disassembly of locks; it is a solid cylinder that is used to push the plug out of the lock, while preventing the springs and driver pins from ...

  8. Glossary of firefighting equipment - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_firefighting...

    A forcible entry tool for removing cylinder locks; used with a Halligan bar. Kelly tool A prying tool much like a Halligan tool without the right-angle pointed tip. Knox Box A box secured to the outside (esp. of a commercial occupancy) containing master keys, accessible by a high-security key available to responding firefighters.

  9. Boss (engineering) - Wikipedia

    en.wikipedia.org/wiki/Boss_(engineering)

    A common everyday example of a boss is the housing of the rotation spindle in a washing machine drum, or on a cylinder lawn mower at the end of the cutting blade cylinder which may house a bearing set to allow the cylinder to rotate through one plane, but held firm in another plane. A boss can also be a brass eyelet on a sail.