Brunton Boring Machine
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Description:
Previously used in quarries, the Brunton machine was given a run in 1882 in a test tunnel near Sangatte, off the site of the first Channel Tunnel. Due to its complexity, which caused frequent failures, it didn’t go beyond this testing phase and didn’t replace the Beaumont machine.
The caption reads in the original French: Machine Brunton pour le creusement des tunnels dans les roches tendres.