The great Chicago Canal. The New Era grader. The high power steam derrick. The Bates hydraulic dredge. The Brown cantilevers. Cable hoisting and transferring machinery.



Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past

Restoration by: magscanner

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Created on

Monday 30 November 2009

Posted on

Monday 30 November 2009

Tags

cargo, civil engineering, construction, Great Lakes, harbor, midwest, navigation, shipping, water

Albums

• General Magazines / Science and Technology Magazines / Scientific American

Visits

2069

Description

The great Chicago Canal. The New Era grader. The high power steam derrick. The Bates hydraulic dredge. The Brown cantilevers. Cable hoisting and transferring machinery.



Source: Steve Kirch, collector, and creator of a great website about SCIENTIFIC AMERICAN in the past

Restoration by: magscanner