Jacques Triger

Jacques Triger
Bust on Triger
Born(1801-03-10)10 March 1801
Mamers, France
Died16 December 1867(1867-12-16) (aged 66)
Paris, France
Scientific career
FieldsGeology
Representation of a pneumatic caisson, devised by Triger, dated 1846

Jacques Triger (10 March 1801 – 16 December 1867)[1] was a French geologist who invented the "Triger process" for digging through waterlogged ground using a pressurised caisson.

Triger was also deputy director of coal mining operations in Chalonnes-sur-Loire (Maine-et-Loire).

  1. ^ sometimes mistakenly quoted as Jules Triger, who is his brother; Birth Certificate from the city of Mamers, Sarthe, France, 10 March 1801