Natural Philosophy Collection

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  ABDNP201065a01.JPG - R. W. Paul: Unipivot Instrument with Shunt Robert William Paul began his instrument making company in 1891, specialising in electrical test equipment.  He had previously worked for Elliott Bros.  The version of the D'Arsonval moving coil galvanometer that he developed in 1903 suspended the coil on a single pivot for reduced friction and greater responsiveness.  He called his development the 'unipivot'.  Unipivot instruments became standard laboratory fare for the next half century.  There is a story that Paul demonstrated the robustness of his design by using one of his instruments in its leather case as a football.  The experiment won't work with our wooden cased version. Paul also became a cinematic pioneer in the 1890s.  In 1919 his firm was taken over by the Cambridge Scientific Instrument Co. but Paul continued to work within the enlarged organisation for the rest of his life.  His legacy in 1943 established the Royal Society's R W Paul Instrument Fund that continues to this day to provide substantial grant funding for the development of physical science instruments. ABDNP:201065a & ABDNP:201055a  
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12 | R. W. Paul: Unipivot Instrument with Shunt

Robert William Paul began his instrument making company in 1891, specialising in electrical test equipment. He had previously worked for Elliott Bros. The version of the D'Arsonval moving coil galvanometer that he developed in 1903 suspended the coil on a single pivot for reduced friction and greater responsiveness. He called his development the 'unipivot'. Unipivot instruments became standard laboratory fare for the next half century. There is a story that Paul demonstrated the robustness of his design by using one of his instruments in its leather case as a football. The experiment won't work with our wooden cased version.

Paul also became a cinematic pioneer in the 1890s. In 1919 his firm was taken over by the Cambridge Scientific Instrument Co. but Paul continued to work within the enlarged organisation for the rest of his life. His legacy in 1943 established the Royal Society's R W Paul Instrument Fund that continues to this day to provide substantial grant funding for the development of physical science instruments.

ABDNP:201065a & ABDNP:201055a

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