Barograph
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Ingenium,
1987.0510.001
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- OBJECT TYPE
- MERCURY TUBE/PHOTOGRAPHIC/KEW
- DATE
- 1867–1885
- ARTIFACT NUMBER
- 1987.0510.001
- MANUFACTURER
- Unknown
- MODEL
- KEW
- LOCATION
- England
More Information
General Information
- Serial #
- N/A
- Part Number
- 1
- Total Parts
- 7
- AKA
- N/A
- Patents
- N/A
- General Description
- SLATE BASE/ METAL PARTS (BRASS WITH SOME GOLD?)/ GLASS LENSES & BAROMETER TUBE/ CERAMIC DIAL
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 190.0 cm
- Width
- 35.9 cm
- Height
- 162.0 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Meteorology
- Category
- Atmospheric pressure measurement
- Sub-Category
- N/A
Manufacturer
- AKA
- Unknown
- Country
- England
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- Canada
- State/Province
- Ontario
- Period
- C. 1887 UP TO 1940
- Canada
-
INSTRUMENT USED TO RECORD ATMOSPHERIC PRESSURE AT CANADA'S FIRST METEOROLOGICAL OBSERVATORY, PROVIDING A CONTINUOUS PHOTOGRAPHIC RECORD OF PRESSURE CHANGES FOR RESEARCH PURPOSES RATHER THAN WEATHER PREDICTION. - Function
-
INSTRUMENT WHICH MEASURED ATMOSPHERIC PRESSURE BY MEANS OF A MERCURY BAROMETER & RECORDED THE RESULTS ON PHOTOGRAPHIC PAPER. - Technical
-
LATER (C. 1867) FORM OF KEW TYPE PHOTOGRAPHIC BAROGRAPH,ORIGINALLY DEVELOPED IN 1840'S AFTER INVENTION OF PHOTOGRAPHY. IT CONSISTS OF MERCURY TUBE MOUNTED VERTICALLY ON TABLE, & SEVERAL LENSES TO MAGNIFY & FOCUS LIGHT OF FLAME WHICH ILLUMINATES TUBE & CREATES IMAGE ON LIGHT SENSITIVE PAPER ON CLOCK CONTROLLED DRUM. THIS BAROGRAPH WAS BUILT BETWEEN 1867 AND 1873. THE ROYAL SOCIETY IN LONDON PROPOSED THE BUILDING OF THREE TYPES OF RECORDING INSTRUMENT, INCLUDING THE PHOTOGRAPHIC BAROGRAPH AND THERMOGRAPH (1987.0509), FOR BRITISH OBSERVATORIES IN 1867 AND BY LATER THAT YEAR EXAMPLES OF THESE INSTRUMENTS WERE OPERATING AT KEW AND OTHER OBSERVATORIES (REFS. 1-2). IN 1873, THE CANADIAN BAROGRAPH AND THERMOGRAPH WERE AT THE KEW OBSERVATORY IN LONDON FOR VERIFICATION (REF. 3). - Area Notes
-
Unknown
Details
- Markings
- Incised lettering on drum reading 'BAROGRAPH'/ incised lettering on lens reading 'BAROGRAPH/ H. ANDERSON & SONS/ LONDON'/ clock mechanism incised 'R. MUNRO'
- Missing
- From CA of 10/26/1993 by Tony Missio: Undetermined
- Finish
- BLACK BASE/ LACQUERED? & BLACK PAINTED BRASS & METAL PARTS/ COLOURLESS TRANSPARENT & TRANSLUCENT GLASS/ WHITE CERAMIC/ BROWN STAINED & VARNISHED WOOD
- Decoration
- BLACK LINE DESIGN ON CALIBRATED DIAL
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Unknown Manufacturer, Barograph, between 1867–1885, Artifact no. 1987.0510, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/id/1987.0510.001/
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