The shuttlemaster was a badminton coaching aid that came on the market in 1979. Invented by Rod Hall and reviewed by Ollie Cussen in Badminton, December 1979, page 11 it was designed to enable the shuttle to be perfectly placed to practise any shot. Many coaches and players will have experienced the problems encountered when the human shuttle feeder sends over the shuttle out of reach encouraging bent arms and poor footwork among other problems.

Essentially consisting of a rod, with holder that could be slid to any required height for overhead, side-arm, or underarm strokes. Into this it is possible to screw a detachable horizontal wooden arm, and to the end a rubber cord is looped to which a shuttle is firmly attached so that the base faces the striker.    

It could be screwed to any solid wall, and is easily dismantled. The rubber cord suspensions with shuttles can be replaced when worn. Priced £58.03.

Advantages mentioned are – you can do slow motion demonstrations, keep off court players occupied and produce more fluent, straight-armed strokes.  

Part of an advert in Badminton, October 1980 shows how it was put together. 

The museum now has a shuttlemaster, kindly donated by Rodger Coupar which is a free standing version.