“Différentiel ouvert” in L’Automobile, son mécanisme, sa conduite, son entretien, son dépannage by René-M. Viette, Mercadier-L’Homme, 1945, Fig. 10, p. 19

Agence Eureka: “Différentiel ouvert” in L’Automobile, son mécanisme, sa conduite, son entretien, son dépannage by René-M. Viette, Mercadier-L’Homme, 1945, Fig. 10, p. 19. Image retrieved from Agence Eureka Flickr account (larger formats are available as well).

The image shown above ―an exploded view of a differential― is one of 22 scanned from the book by Agence Eureka and uploaded online. The book has 104 pages in total. Used copies are still available online at an affordable price.

Below is a 9’30” feature titled “Around The Corner”, an educational film produced in 1937 by The Jam Handy Organization on behalf of Chevrolet Division, General Motors Corporation. It explains the differential’s function on a four-wheel automobile and shows how it works. Jam Handy Organization was an audiovisual production company specializing in commercial communication (training, educational and promotional materials). The video embedded here is from YouTube but the film is also available under Creative Common license (public domain) at The Internet Archive.

Previously from Agence Eureka: Anatomical illustrations from “Précis d’histoire naturelle” by Antoine Pizon, 1930

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