An animation of a Hobson joint

A Hobson's joint or Hobson's coupling is a type of right-angle constant-velocity joint; rods bent 90° are able to transmit torque around a corner because they are all free to turn in their mounting holes in both legs of the coupling.[1][2]

Hobson's joints are used to make elbow engines, a novelty device,[1] but also for practical purposes in tools[3] and shaft-driven bicycle gearing.

References

  1. 1 2 "Ten Cylinder "Elbow Engine". The Steam Gallery. Creative Edge Design of Greenville. Retrieved August 1, 2015.
  2. ↑ dan (June 1, 2008). "When a universal joint is just too PRACTICAL". How to Spot a Psychopath. Retrieved August 1, 2015.
  3. ↑ Benjamen Johnson (May 30, 2008). "Gearless Right-Angle Socket Adapter". Toolmonger. Retrieved August 1, 2015.


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