Image:Tower.bridge.99.machinery.london.arp.jpg
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Tower Bridge machinery
One of a pair of identical horizontal stationary steam engines built by Sir W. G. Armstrong Mitchell & Company of Gateshead in 1894. Used to pump water at 750psi to the hydraulic machinery that worked the bascules of Tower Bridge.
It is a twin tandem compound engine, fitted with Meyer expansion slide valves, driving force pumps by the tail rods.
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This image has been released into the public domain by its author, Arpingstone. This applies worldwide. In some countries this may not be legally possible; if so: العربية | Български | Deutsch | Ελληνικά | English | Español | Français | Italiano | 日本語 | 한국어 | Polski | Русский | Српски / Srpski | Svenska | தமிழ் | Українська | 中文(繁體) | 中文(简体) +/- |
File history
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| Date/Time | Dimensions | User | Comment | |
|---|---|---|---|---|
| current | 20:44, 30 September 2005 | 1,800×1,347 (559 KB) | Arpingstone | (Tower Bridge machinery) |
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Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.
| Camera manufacturer | OLYMPUS CORPORATION |
|---|---|
| Camera model | C750UZ |
| Exposure time | 1/30 sec (0.033333333333333) |
| F-number | f/2.8 |
| Date and time of data generation | 15:02, 7 June 2005 |
| Lens focal length | 6.3 mm |
| Image title | OLYMPUS DIGITAL CAMERA |
| Orientation | Normal |
| Horizontal resolution | 72 dpi |
| Vertical resolution | 72 dpi |
| Software used | v753u2-86 |
| File change date and time | 15:02, 7 June 2005 |
| Y and C positioning | 2 |
| Exposure Program | Normal program |
| ISO speed rating | 164 |
| Exif version | 2.2 |
| Date and time of digitizing | 15:02, 7 June 2005 |
| Image compression mode | 2 |
| Exposure bias | 0 |
| Maximum land aperture | 3 |
| Metering mode | Pattern |
| Light source | Unknown |
| Flash | 25 |
| Colour space | sRGB |
| Custom image processing | Normal process |
| Exposure mode | Auto exposure |
| White balance | Auto white balance |
| Digital zoom ratio | 0 |
| Scene capture type | Standard |
| Contrast | Normal |
| Saturation | Normal |
| Sharpness | Normal |
