File:No. 4 Inverted Mantle with No. 8 Magnesia Ring - DPLA - 83184a7d1fc38599cfceda682431fdd1 (page 5).jpg
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[edit]No. 4 Inverted Mantle with No. 8 Magnesia Ring ( ) | |||||||||||||||||||||
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Creator InfoField | Welsbach Gas Light Company | ||||||||||||||||||||
Title |
No. 4 Inverted Mantle with No. 8 Magnesia Ring |
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Description |
Unused Welsbach No. 4 Inverted Mantle and No. 8 Magnesia Ring in its original cardboard box from Lindsay Light and Chemical Company. The Welsbach gas mantle is a device made of fibers impregnated with oxides of cerium and thorium, an element that is mildly radioactive. Mantles produce a bright white light when heated with a gas flame; effectively the gaslight equivalent of a filament in an electric lightbulb. Invented in the 1880s by Austrian scientist Carl Auer Von Welsbach (1858-1929), gas mantles were used extensively in street lighting and in gas-powered appliances. The Welsbach gas mantle was the first industrial product to make use of rare earth elements. Welsbach mantels were sewn and then packed into cardboard tubes for shipping and sales. The Lindsay Chemical Company in Chicago took over the Welsbach marketing logo in the early twentieth century and continued the production of mantels compatible with Welsbach products until the mid-1930s. |
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Date | 1890 – 1930 | ||||||||||||||||||||
Collection |
institution QS:P195,Q5090408 |
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Source/Photographer |
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Permission (Reusing this file) |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 20:59, 4 October 2022 | 2,782 × 2,156 (189 KB) | DPLA bot (talk | contribs) | Uploading DPLA ID 83184a7d1fc38599cfceda682431fdd1 |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | Phase One |
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Camera model | IQ180 |
Date and time of data generation | 11:57, 11 January 2022 |
Orientation | Normal |
Horizontal resolution | 400 dpi |
Vertical resolution | 400 dpi |
Y and C positioning | Centered |
Exif version | 2.1 |
Meaning of each component |
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Supported Flashpix version | 1 |
Color space | Uncalibrated |
Serial number of camera | FP040179 |
Lens used | Schneider Kreuznach LS 55mm f/2.8 |
Date and time of digitizing | 11:57, 11 January 2022 |
Software used | Capture One 21 Macintosh |