Browse Items (33 total)

Airplane flap control mechanism [Patent documents]
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)…

Airfoil control apparatus responsive to aircraft speed [Patent documents]
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…

ADF/Lear Automatic Direction Finder 12E
Rectangular black metal case with front panel. Panel has tuning dial at center with three rows. Also has tuning selection knob and vol. knob. Has ADF/ANT switch. Tester button at upper right. At bottom of panel "Lear ADF-12E." Holes and flat prongs…

Adapter/Lear Jet, FM Radio Adapter, Model XI
Black Stereo 8, FM radio adapter. The object is a metal black rectangular box with silver screws holding the backing. Interior of object is not visible. A black rubber cord with silver prongs at the end is attached to the top left of the box. On the…

Adapter/Lear Jet FM Radio Adapter, Model XI
Lear Jet FM Radio Adapter made of out black metal. The adapter is square-shaped with two outer components fitted together. On the front side there is a caution sticker and two black plastic dials. On the side a silver plaque is adhered to the metal…

[William P. and Moya Olsen Lear Papers, Box 27, Folder 4; Box 207, Folder 2 - Product "pitch" letters and price lists, 1940 September - 1941 May]
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…

[William P. and Moya Olsen Lear Papers, Box 27, Folder 34; Box 200, Folder 3 - Assorted ad sheets and brochures for various Lear Avia products [RM files], undated (circa 1939-1944)]
Items from Box 27, Folder 34 and Box 200, Folder 3 of the William P. and Moya Olsen Lear Papers, circa 1939-1944. Contains assorted ad sheets and brochures for various Lear Avia products. 18 total items.

[William P. and Moya Olsen Lear Papers, Box 24, Folder 4; Box 205, Folder 5 - "Expandable ring clutch (WPL)" [L-D-123], 1943-1944 July]
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…

[Technical drawings of sound suppressor]
Technical drawings of a sound suppressor for a supersonic transport aircraft, drawn by William H. Cook, December 13, 1966.

[Lear 3-axis servo unit]
Photograph of a Lear 3-axis servo unit, circa 1940s-1950s. Typed caption: "One of the first 3-axis servo units."
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