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Description
📜 Excellent piece of mid-century American engineering and industrial history: an original U.S. patent document issued in 1952 for a mechanical Brake and Clutch design.
⚙️ Patent details:
- U.S. Patent No. 2,605,863
- Title: Brake and Clutch
- Inventors: Henry H. Talboys & Selmer A. Kraft
- Assignee: Johnson Power-On Transmission Corporation, Chicago, Illinois
- Patent granted August 5, 1952
- Original filing date shown as January 3, 1949
- Signed/printed under Commissioner of Patents John A. Marzall
- Includes original red Patent Office seal and blue ribbon
- Includes patent specification pages and detailed engineering diagrams
The patent number is also referenced in later U.S. clutch/brake patent literature as an earlier 1952 Talboys patent.
📚 A very interesting collectible for automotive, transmission, mechanical engineering, patent, industrial-history, or Chicago manufacturing collectors.
Condition is overall good for its age, with normal paper toning and handling wear. A small imperfection is present at the upper back corner as shown.
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