Portable propeller pitchometer and diagram

Made:: 1896-1912 in Glasgow

maker:: Dobbie-McInnes Ltd.

Portable propeller pitchometer and diagram

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Science Museum Group Collection
© The Board of Trustees of the Science Museum

Portable propeller pitchometer, patented by J. Chapman and J. Hunter in 1896, used to determine the pitch of a screw propeller, in leather case (see note), by Dobbie McInnes Limited, Glasgow, 1896-1912

Details

Category:: Marine Engines

Object Number:: 1912-112

Materials:: wood (unidentified), brass (copper, zinc alloy) and glass

Measurements:: overall: 180 mm x 187 mm x 52 mm, .785kg

type:: propeller

credit:: D. McInnes Ltd.

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