Hobson's joint

File:ElbowEngine.gif

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.

Hobson's joints are used to make elbow engines, a novelty device, but also for practical purposes in tools and shaft-driven bicycle gearing.{{citation needed|date=July 2015}}

External links

{{YouTube |pVldn35XuXo |Hobson Joint}}
{{YouTube |5ZRKNlY7enM |Elbow engine}}
{{YouTube |zVYB0DBbYok |One more Hobson's joint solution}}

References

{{reflist|refs=

{{cite web |url=http://cedesign.net/steam/elbow.htm |title=Ten Cylinder "Elbow Engine |work=The Steam Gallery |publisher=Creative Edge Design of Greenville |accessdate=August 1, 2015}}

{{cite web |url=http://www.howtospotapsychopath.com/2008/06/01/when-a-universal-joint-is-just-too-practical/ |title=When a universal joint is just too PRACTICAL |author=dan |date=June 1, 2008 |work=How to Spot a Psychopath |accessdate=August 1, 2015}}{{Better source needed|reason=Just a blog I guess |date=July 2015}}

{{cite web |url=http://toolmonger.com/2008/05/30/gearless-right-angle-socket-adapter/ |title=Gearless Right-Angle Socket Adapter |author=Benjamen Johnson |date=May 30, 2008 |work=Toolmonger |accessdate=August 1, 2015}}

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Category:Gears

Category:Rotating shaft couplings