Flask, vacuum
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1992.3187.002
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- OBJECT TYPE
- lighting
- DATE
- 1955–1965
- ARTIFACT NUMBER
- 1992.3187.002
- MANUFACTURER
- Philips
- MODEL
- 61021
- LOCATION
- Holland
More Information
General Information
- Serial #
- N/A
- Part Number
- 2
- Total Parts
- 3
- AKA
- N/A
- Patents
- N/A
- General Description
- Glass tube with a ceramic base and metal clip. Tube de verre avec une base en céramique et métal.
Dimensions
Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.
- Length
- 39.0 cm
- Width
- 5.6 cm
- Height
- 5.2 cm
- Thickness
- N/A
- Weight
- N/A
- Diameter
- N/A
- Volume
- N/A
Lexicon
- Group
- Lighting Technology
- Category
- Lamp bulbs
- Sub-Category
- N/A
Manufacturer
- AKA
- Philips
- Country
- Holland
- State/Province
- Unknown
- City
- Unknown
Context
- Country
- Unknown
- State/Province
- Unknown
- Period
- Unknown Inconnu
- Canada
-
Part of the Ontario Hydro Collection. This collection was acquired by the CSTM in 1992. It documents the material culture of the history of electricity and its uses. Fait partie de la collection Hydro-Ontario. Cette collection acquise par le musée des sciences et de la technologie du Canada en 1992 documente la culture matérielle de l’histoire de l’électricité et ses usages. - Function
-
Used with a sodium vapour lamp bulb to maintain sufficient temperature for the optimum operation of the lamp in the wide range of temperature and wind velocities encountered in outdoor operation. Utilisé avec une ampoule au sodium pour maintenir une température suffisante pour l'opération de la lampe dans les extrêmes de température et du vent rencontré durant l'opération dehors. - Technical
-
Lighting produced by an electric arc obtained with metallic sodium. The first sodium bulb was invented by Westinghouse in 1920. OSRAM improved the quality of the glass used in 1931, however Philips began commercial production in 1932. This bulb was made with new glass developed by Philips in 1955 that improved the resistance to sodium vapour. Previous to this, sodium bulbs discoloured quickly. This change was a great improvement, but the bulbs needed to be installed correctly in order to avoid the sodium travelling through the tube and depositing a mirrored finish on the inside, reducing light transmission. Light obtained was orange in colour, which was less harsh than white light. Éclairage produit par un arc électrique obtenu avec du sodium métallique. La première ampoule au sodium a été inventée par Westinghouse en 1920. OSRAM améliora la qualité du verre en 1931. Toutefois, la compagnie Philips en fit la production commerciale à compter de 1932. Cette ampoule est faite du nouveau verre mis au point par Philips en 1955 qui améliorait la résistance à la vapeur de sodium. Avant, les ampoules au sodium se ternissaient rapidement. Ce changement était une belle amélioration mais l’ampoule devait être installée correctement afin d’éviter que le sodium voyage dans le tube et ne forme une surface miroitante qui réduisait l’efficacité d’éclairage. L’éclairage obtenu de couleur orange, est moins difficile pour la vision que la lumière blanche. - Area Notes
-
Unknown
Details
- Markings
- Printed on the inner tube: "PHILIPS/ MADE IN HOLLAND/ [logo]/ TYP. 61021/ SO 85 W"
- Missing
- Appears complete
- Finish
- Clear glass tube with a white base and a silver-coloured metal clip. Un tube transparent avec une base blanche et une attache de couleur argentée.
- Decoration
- N/A
CITE THIS OBJECT
If you choose to share our information about this collection object, please cite:
Philips, Flask, vacuum, circa 1955–1965, Artifact no. 1992.3187, Ingenium – Canada’s Museums of Science and Innovation, http://collection.ingenium.ca/en/item/1992.3187.002/
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