Psychrometer
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1996.0493.001
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- OBJECT TYPE
- ASPIRATED/PORTABLE/ASSMANN/CLOCK DRIVEN
- DATE
- Unknown
- ARTIFACT NUMBER
- 1996.0493.001
- MANUFACTURER
- Negretti & Zambra
- MODEL
- Unknown
- LOCATION
- London, England
More Information
General Information
- Serial #
- 129
- Part Number
- 1
- Total Parts
- 2
- AKA
- N/A
- Patents
- N/A
- General Description
- NON-FERROUS METAL
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 36.5 cm
- Width
- N/A
- Height
- N/A
- Thickness
- N/A
- Weight
- N/A
- Diameter
- 9.5 cm
- Volume
- N/A
Lexicon
- Group
- Forestry
- Category
- Fire fighting
- Sub-Category
- N/A
Manufacturer
- AKA
- Negretti Zambra
- Country
- England
- State/Province
- Unknown
- City
- London
Context
- Country
- Canada
- State/Province
- Ontario
- Period
- Unknown
- Canada
-
FROM COLLECTION OF FORESTRY & FIRE-FIGHTING EQUIPMENT USED BY & ACQUIRED FROM PNFI. FOUNDED IN 1918, IT WAS OLDEST CONTINUOUSLY OPERATING FORESTRY-RESEARCH ESTABLISHMENT IN CANADA UNTIL IT CLOSED IN 1995. PNFI STUDIED GROWTH OF VARIOUS SPECIES & FORESTMANAGEMENT, PARTICULARLY FIRE PREVENTION & SUPPRESSION. - Function
-
INSTRUMENT FOR DETERMINING ATMOSPHERIC HUMIDITY BY COMPARING DIFFERENT READINGS FROM TWO THERMOMETERS, ONE WITH BULB KEPT WET & VENTILATED. - Technical
-
INVENTED BY ASSMAN IN 1890, THIS FORM OF PSYCHROMETER WOULD HAVE 2 THERMOMETERS ENCLOSED IN DOUBLE WALLED DUCT OF REFLECTIVE METAL, WITH VENTILATION EFFECTED BY CLOCK OR ELECTRICALLY DRIVEN FAN. ASSMAN PSYCHROMETERS OF MUCH SAME FORM APPEAR IN RELATIVELY MODERN CATALOGUES ETC. - Area Notes
-
Unknown
Details
- Markings
- .1 INCISED LETTERING READING "NEGRETTI & ZAMBRA. LONDON." ON ONE SIDE, "No 129" ON OTHER
- Missing
- 2 THERMOMETERS
- Finish
- .1 PLATED/.2 BROWN STAINED & COATED WOOD/ WHITE SYNTHETIC
- Decoration
- .1 INCISED N&Z LOGO BESIDE MFR.'S NAME
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Negretti & Zambra, Psychrometer, Unknown Date, Artifact no. 1996.0493, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingeniumcanada.org/en/item/1996.0493.001/
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