Pocket aneroid barograph by Richard Freres

Made:
1919 in Paris
maker:
Richard Frères
Pocket aneroid barograph by Richard Freres, c. 1919. Pocket aneroid barograph by Richard Freres, c. 1919 Pocket aneroid barograph by Richard Freres, c. 1919 Pocket aneroid barograph by Richard Freres, c. 1919 Pocket aneroid barograph by Richard Freres, c. 1919 Pocket aneroid barograph by Richard Freres, c. 1919

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

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License this image for commercial use at Science and Society Picture Library

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Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Creative Commons LicenseThis image is released under a CC BY-NC-SA 4.0 Licence

Buy this image as a print 

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License this image for commercial use at Science and Society Picture Library

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Pocket aneroid barograph by Richard Freres, c. 1919.
Science Museum Group
© The Board of Trustees of the Science Museum

Pocket aneroid barograph by Richard Freres, c. 1919
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Pocket aneroid barograph by Richard Freres, c. 1919
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Pocket aneroid barograph by Richard Freres, c. 1919
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Pocket aneroid barograph by Richard Freres, c. 1919
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Pocket aneroid barograph by Richard Freres, c. 1919
Science Museum Group Collection
© The Board of Trustees of the Science Museum

Pocket aneroid barograph by Richard Freres, c 1919.

A barograph records changes in air pressure. This pocket instrument was designed as an altigraph, for use by mountaineers or airmen. The chart is printed to give heights up to 6000 metres. The pen, controlled by clockwork, makes a dot on the chart every half-minute, rather than a continuous trace.

Details

Category:
Meteorology
Object Number:
1919-517
Materials:
leatherette, mahogany, brass and nickel
Measurements:
overall: 3.7 x 9.3 x 12.4 cm
type:
aneroid barograph
credit:
Meteorological Office, South Kensington