Brunton Machine, 1874
Numéro d’image : 12631191
| In 1882, the French Channel Tunnel Company tested two different machines for tunnelling under the English Channel. The Brunton machine, was an improved version of a machine patented in 1868 by John D. Brunton, operated by means of two chucks or face-plates each mounted with six disc cutters. The chucks were mounted on an eccentrically located shaft, or spindle, which was attached at opposite ends of the crosshead and revolved around the central shaft. By the use of a worm gear and the eccentrically placed spindles, the chucks were adjustable to compensate for cutter wear. The Brunton machine failed to perform well and was dismantled by the French in favor of the Beaumont/English machine. | |
| Licence : | Droits gérés |
| Crédit: | Science Photo Library / Science Source |
| Taille de l’image : | 2971 px × 4500 px |
| Model Release : | Non requis |
| Property Release : | Non requis |
| Restrictions : | - |
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