File:Panel working.jpg
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| Description |
English: Two systems of panel workings used in the coal mines of north east England, according to a lecture given by Nicholas Wood in 1858.
To prvent 'creep' - a progressive condition in which pillars of coal upholding the roof are crushed, thus increasing the pressure on those adjacent, so that the chain reaction spreads, the district is worked in panels. Strong barriers of coal isolate the panels. which may be worked by various methods. The technique was first used by coal viewer John Buddle. |
| Date | |
| Source | Wood, Nicholas (1858). "On the improvements and progress in the working and ventilation of coal mines in the Newcastle-on-Tyne district within the last fifty years". Proceedings of the Institution of Mechanical Engineers: 177. Plate 49, https://babel.hathitrust.org/cgi/pt?id=pst.000068616670&view=1up&seq=421 |
| Author | Nicholas Wood (1795-1865) |
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This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 70 years or fewer. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 01:31, 5 April 2023 | | 696 × 1,061 (651 KB) | Ttocserp (talk | contribs) | Uploaded a work by Nicholas Wood (1795-1865) from Wood, Nicholas (1858). "On the improvements and progress in the working and ventilation of coal mines in the Newcastle-on-Tyne district within the last fifty years". Proceedings of the Institution of Mechanical Engineers: 177. Plate 49, https://babel.hathitrust.org/cgi/pt?id=pst.000068616670&view=1up&seq=421 with UploadWizard |
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