Mike Waters

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Flashback: Does Anyone Recognize This Device?

By Mike Waters 2018-12-01 18:51:35

Does anyone remember this device? It was a device invented and used in the early 1960's to develop expanded ship plates. Prior to this they were only developed by building full size mock-ups of the 3D part in wood, so this worked for a short period as an intermediate stage before computers. The device worked at 1/10th scale and pointers were set at each frame position to represent the shape of each frame. A special sheet of material was inserted...

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Catug sketch

More about the Marindus Integrated Tug-Barge Concept

By Mike Waters 2018-11-27 15:50:56

This article is a follow up to the article by Harry Valentine, entitled: Reconsidering an Innovative Integrated Tug-Barge Concept, that was developed by the now closed shipyard Marine Industries (MIL) of Sorel, Quebec, Canada, now 40 years ago. The writer is the originator of the design (see U.S. Patent #4,356,784). Here are the basics of the concept and how it came to be developed. In 1978, we were invited to submit a bid to build one of the new CATUG’s...

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