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Golf Shafts

Shaft


A shaft can be
  • a hole in the earth typically used for mineral extraction, such as mining. Mineshafts will normally be vertical, man-made structures. ( pitch (vertical space)).
  • a long cylindrical piece of metal, typically found in motors, machines etc.; axles or driveshafts, for example.
  • the long cylindrical section of an architectural column between the base and the capital.
  • a vertical space inside a building used to conduct pipes, conduits, or cables between floors. Elevators also travel in shafts; see Elevator shaft. Shafting.
  • a modern vulgarism meaning penis.
  • a weapon in the Quake video game serie. Shaft can also refer to
  • a 1971 film and a 2000 sequel, see Shaft (1971 movie) and Shaft (2000 movie).
  • A superhero character in Youngblood comics created by Rob Liefeld

    Half Shaft


    A half shaft is an automotive term used to describe a driveshaft that goes from a vehicle's differential to one of the driven wheels. It is so called because it will typically be transmitting half of the available power that is supplied to the differential to which it is connected.

    Balance Shaft


    In piston engine engineering, a balance shaft is an eccentric weighted shaft which offsets the vibrations of unbalanced engines.

    Four cylinder applications

    Balance shafts are most common in inline four cylinder (straight-4) engines which, due to the asymmetry of their design, have an inherent second order vibration (vibrating at twice the engine RPM) which, contrary to popular belief, cannot be eliminated no matter how well the internal components are balanced. This vibration is generated because the movement of the connecting rods in an inline engine is not symmetrical throughout the crankshaft rotation; thus during a given period of crankshaft rotation, the descending pistons and ascending pistons are not always completely opposed in their acceleration, giving rise to a net vertical inertial force twice in each revolution whose intensity increases exponentially with RPM, no matter how closely the components are matched for weight. See the ''0 degree cylinder angle, 180 degree crankshaft angle'' animated example http://pdmec4.mecc.unipd.it/~cos/DINAMOTO/twin%20motors/twin.html here for a very clear depiction of this sometimes hard to visualize vibration (as well as the mathematical equation which describes it). The problem increases with larger engine displacement, since the only ways to achieve larger displacement are with a longer piston stroke, increasing the difference in acceleration, or by a larger bore, increasing the mass of the pistons; either way, the magnitude of the inertial vibration increases. For many years, two litres was viewed as the 'unofficial' displacement limit for a production inline four cylinder engine with acceptable NVH characteristics. The development of the General Motors 2.3 litre Quad 4 engine in 1987, described as "rough as a cob" by one automotive reviewer, and its subsequent development into the much more positively received 2.4 litre version with balance shafts confirms the wisdom of this assessment. The basic

    John Shaft


    John Shaft is a fictional character created by screenwriter/novelist Ernest Tidyman. A sort of African-American answer to Ian Fleming's James Bond. The blurb on the paperback on which the original film is based states Shaft is "Hotter than Bond, cooler than Bullitt."

    Books

  • Shaft (1970)
  • Shaft Among the Jews (1972)
  • Shaft's Big Score (1972)
  • Shaft Has a Ball (1973)
  • Goodbye, Mr. Shaft (1973)
  • Shaft's Carnival of Killers (1974)
  • The Last Shaft (1975)

    Films Based on the Character

    Television Series

    The television show ran from 1973-74. There were 7 90-minute movies, part of the New CBS Tuesday Night Movies, rotating with ''Hawkins'', which starred James Stewart. It was short-lived, as the show toned down the John Shaft character.

    Parodies in Other Films

  • Good Burger
  • I'm Gonna Git You Sucka

    John Shaft in Other Media

  • Burger King utilized the Shaft character for promotion. And even somewhat parodied Shaft utilizing Shaquille O'Neal.

    Shaft-isms

  • Towards the end of the film, during the final showdown, Shaft usually dons a leather outfit, fitted with a high-powered shotgun. (This was done in the 1971 movie and ''Shaft's Big Score'' and not in ''Shaft in Africa'' or the sequel/spinoff).
  • ''Shaft's Big Score'' and ''Shaft in Africa'' featured a teaser that had no music, just a hook, establishing the plot. Afterwhich, the opening credits with a vocalist song would show Shaft heading to the location of the crime. (The first film, ''Shaft'' featured Shaft heading to the scene of the crime with the famous ''Isaac Hayes'' theme on the soundtrack, or at least, heading towards the where the plot would be established, but no teaser).

    Literary References

    ''The Detective in Hollywood'', Jon Tuska, 1978 (ISBN #:0385120931)

    http://www.thrillingdetective.com/shaft.html Page from 'Thrilling Detectives' Shaft, John Shaft, John Shaft, John

    Shaft Tomb


    A shaft tomb or shaft grave is a type of burial structure formed from a deep and narrow shaft sunk into natural rock. Burials were then placed at the bottom. A related group of shaft and chamber tombs also incorporate a small room or rooms cut laterally at the base of the shaft for the placing of the dead. The practice of digging shaft tombs was widespread but the most famous examples are those at Mycenae in Greece which date to between 1650 BC and 1500 BC. These shaft tombs were around 4m deep with the dead placed in cists at the bottom along with rich grave goods. The position of the shaft was sometimes marked by a stone stela. Category:Monument types


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