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Subseries 3. Tangential Engine, 1942-1950

See Also: Related material can be found in Box 120, Series XII: Projects, Subseries 2: St. John’s College.
Scope and Content Notes:

In 1942-1943, Allen invented a rotary internal combustion motor called the Tangential Engine. Included in this subseries are blueprints, correspondence, patent information, and sketches relating to Allen’s engine.

Box 123
Folder 1 Blueprints, 1942
Folder 2-5 Correspondence, 1942-1950
Folder 6 Patent Information (Work of Other People), 1934
Folder 7 Sketches