File:Wheeler and Wilson Number 3 Sewing Machine.jpg
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[edit]DescriptionWheeler and Wilson Number 3 Sewing Machine.jpg |
English: Wheeler and Wilson number 3. This machine is the true precurser of the modern lock-stitch sewing machine, since it incorporates the rotating hook principle and four motion feed invented by Allen B Wilson (1824-1888). Although Wilson patented his inventions in 1851 and 1854 respectively, the first sewing machine was not made until 1866. In this machine the underthread is contained in a disc bobbin which fits loosely in a ring-shaped holder. Interlocking of the two threads occurs when the loops of the needle thread are caught and extended by the revolving hook and passed under the bobbin. The presser-foot has an inset glass plate which allows the seamstress to observe the seam at the point of stitching. The machine was treadle driven. |
Date | |
Source | Own work |
Author | Panjigally |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 16:25, 19 January 2015 | 1,847 × 1,385 (314 KB) | Panjigally (talk | contribs) | User created page with UploadWizard |
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Camera manufacturer | SAMSUNG |
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Exposure time | 1/14 sec (0.071428571428571) |
F-number | f/2.6 |
ISO speed rating | 200 |
Date and time of data generation | 20:26, 8 January 2015 |
Lens focal length | 2.79 mm |
Orientation | Normal |
Y and C positioning | Centered |
Exposure Program | Aperture priority |
Exif version | 2.2 |
Date and time of digitizing | 20:26, 8 January 2015 |
Meaning of each component |
|
APEX aperture | 2.76 |
Maximum land aperture | 2.8 APEX (f/2.64) |
Metering mode | Center weighted average |
Supported Flashpix version | 1 |
Color space | sRGB |
White balance | Auto white balance |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
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8 January 2015
0.07142857142857142857 second
2.6
2.79 millimetre
200
image/jpeg
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