UNIQUE corkscrew and thesis

A unique corkscrew and thesis by Ivan Petkov Zlatinov, mechanical engineer, Assos. Prof. Dr. at the Technical University, Sofia, Bulgaria. The title of the thesis is “About some new applications of two straight-line directed, four bar linkage mechanisms. The thesis depicts an open frame corkscrew, a double lever, and a Tyr lever. These were used for the discussion in the paper and the design idea in 1988. Lot includes both the unique corkscrew and the 32 page thesis (in Bulgarian).

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