File:Dorothy Locke Production of blasting caps 2012 017 b2f37 x346d4806.tiff
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Summary[edit]
Production of blasting caps at Hercules Port Ewen plant ( ) | |||||||||||||||||||||
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Author |
Hercules Incorporated |
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Photographer |
O'Neill, James J. |
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Title |
Production of blasting caps at Hercules Port Ewen plant |
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Description |
English: Close-up view of employee Dorothy Locke setting lead wires in a mold, part of the assembly line production of electric blasting caps, at the Hercules Powder Company plant in Port Ewen, New York. During the production of electric blasting caps, wires were inserted into the base of a bridging machine while a mixture of sulfur, graphite, and mica was poured in a mold to form a plug around the so-called leg wires. Then, a platinum alloy bridge wire was soldered across the two ends of wire protruding from the plug. Following inspection, the plugs subsequently were sent to the Filling Room to be inserted into shells.
Formed in 1912 as part of an anti-trust settlement with DuPont, the Hercules Powder Company (later Hercules Inc.) specialized in the manufacture of explosives and smokeless powders. The company's Port Ewen plant produced a range of special detonators designed for military use, as well as construction jobs that required blasts of dynamite, such as the clearing of quarries, mines, and tunnels. Published without a copyright notice in the March 1955 edition of the Hercules Mixer. |
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Depicted people | Depicted person: Dorothy Locke | ||||||||||||||||||||
Date |
1955 date QS:P571,+1955-00-00T00:00:00Z/9 |
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Collection |
institution QS:P195,Q5090408 |
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Notes | Image downloaded with permission from the Science History Institute, as part of the Wikipedian in Residence initiative. | ||||||||||||||||||||
Source | https://digital.sciencehistory.org/works/zw12z5752 | ||||||||||||||||||||
Permission (Reusing this file) |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 17:02, 30 September 2019 | 3,923 × 3,076 (46.04 MB) | Mary Mark Ockerbloom (talk | contribs) | == {{int:filedesc}} == {{Photograph |photographer = O'Neill, James J. |author = Hercules Incorporated |title = Production of blasting caps at Hercules Port Ewen plant |description ={{en|1= Close-up view of employee Dorothy Locke setting lead wires in a mold, part of the assembly line production of electric blasting caps, at the Hercules Powder Company plant in Port Ewen, New York. During the production of electric blasting caps, wires were inserted into the base of a bridging machine wh... |
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Camera manufacturer | Phase One |
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Camera model | IQ3 80MP |
Exposure time | 1/60 sec (0.016666666666667) |
ISO speed rating | 50 |
Date and time of data generation | 15:09, 14 June 2017 |
Width | 3,923 px |
Height | 3,076 px |
Compression scheme | Uncompressed |
Pixel composition | RGB |
Orientation | Normal |
Number of components | 4 |
Number of rows per strip | 8 |
Horizontal resolution | 400 dpi |
Vertical resolution | 400 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop Elements 7.0 Windows |
File change date and time | 15:53, 16 June 2017 |
Exposure Program | Manual |
Exif version | 2.3 |
Date and time of digitizing | 15:09, 14 June 2017 |
APEX shutter speed | 5.9068910006751 |
Metering mode | Average |
Light source | Other light source |
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Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
White balance | 5 |
Unique image ID | 00005000008200000400E058000045CD |
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