Search Digital Records
Limit your search
Item Type- Text (4)
- Mixed Materials (2)
- patents (6)
- correspondence (2)
- diagrams (2)
- memorandums (1)
- technical drawings (1)
- In copyright (5)
- Copyright undetermined (1)
- Airplanes--Parts (6)
- Boeing Aircraft Company (4)
- United States. Patent Office (4)
- Cook, William Hough, Jr., 1913-2012 (3)
- Lear Avia, Inc. (2)
- Aerofoils (1)
- Airplanes--Fuel tanks (1)
- Anderson, Roy H. (1)
- Butler, Van B. (1)
- Cook, William Hough Jr., 1913-2012 (1)
- Dunn, David L. (1)
- Flaps (Airplanes) (1)
- Kirkbride, John F. (1)
- Larson, Thorvold H. (1)
- Mayer, John D. (1)
- Patents (1)
- Pfafman, Calvin E. (1)
- Pfafman, Clavin E. (1)
- Schairer, George Swift, 1913-2004 (1)
- Yawing (Aerodynamics) (1)
6 results
Patent documents for an airfoil control apparatus responsive to aircraft speed (patent no. 2,696,355), filed by Thorvold H. Larson, John D. Mayer, Calvin E. Pfafman, William H. Cook Jr., and John F. Kirkbride, December 7, 1954. Includes a written description of the mechanism, diagrams, and a list of related patents. Five (5) pages.
Patent documents for an airplane yaw damper (patent no. 2,672,307), designed by William H. Cook, Jr., Calvin E. Pfafman, and George S. Schairer, March 16, 1954. Includes a written description of the mechanism, diagrams, and a list of related patents. Five (5) pages.
Patent documents for an airplane flap control mechanism (patent no. 2,620,147), designed by Van B. Butler and William H. Cook, Jr., December 2, 1952. Includes a written description of the mechanism, diagrams, and a list of related patents. Seven (7) pages.
Patent documents for jettisonable fuel tanks (2,764,374), designed by Roy H. Anderson, William H. Cook, Jr., and David L. Dunn, September 25, 1956. Includes a written description of the mechanism, diagrams, and a list of related patents. Seventeen (17) pages.
Items from Box 24, Folder 4 and Box 205, Folder 5 of the William P. and Moya Olsen Lear Papers, July 1943-1944. Contains correspondence, diagrams, memos, and patent copies related to the expandable ring clutch. 27 total items and original folder labeled "Expandable ring clutch (WPL) / L-d-123."
Items from Box 27, Folder 4 and Box 207, Folder 2 of the William P. and Moya Olsen Lear Papers, September 1940 through May 1941. Contains product "pitch" letters, diagrams, technical drawings, brochures, and price lists related to Lear products. 26 total items and original folder labeled "Lear / General letters re Products / #17."