Brunel patents a tunnelling shield divided into protected working compartments, allowing excavation and brick lining to advance together.
Brunel, Marc Isambard · LondonBrunel Tunnelling Shield
Marc Brunel's protected method for excavating soft ground

Historical chronology
7 matching records from the updated 653-record Brunel dataset.
Brunel patents a tunnelling shield that allows miners to excavate in protected compartments while brickwork is built behind them.
Brunel, Marc Isambard · LondonBrunel prepares a plan for a tunnel between Rotherhithe and Wapping using his patented tunnelling shield.
Brunel, Marc Isambard · RotherhitheBrunel works with his father on the shield system used for the Thames Tunnel.
Brunel, Isambard Kingdom · RotherhitheThe sinking shaft is completed and Brunel's tunnelling shield is assembled beneath the Rotherhithe site.
Brunel, Marc Isambard · RotherhitheA larger improved shield is assembled so excavation of the Thames Tunnel can resume after the long suspension.
Brunel, Marc Isambard · RotherhitheA larger improved tunnelling shield is assembled and excavation beneath the Thames resumes.
Brunel, Marc Isambard · Rotherhithe