American Public Power Association Collection on Public Utilities
Persuasive printed materials offered by the Association to member utilities, to use as ads in local newspapers or as bill stuffers, on public interest subjects such as holiday safety, energy saving, the conveniences of electric appliances, and other topics; persuasive printed materials, mostly offered by investor-owned utilities, in opposition to …
Manned Space Laboratory Proposal Papers
This collection consists of slides, transparencies, photographs, sketches, and documents donated by Carl Hanson documenting his proposal to transform the Saturn V stage into a manned space laboratory. Included here are patent applications and correspondence for the Space Vehicle Centrifuge; NASA Technical Note D-1504, "A Report on the Research and …
Warshaw Collection of Business Americana Subject Categories: Waterworks
A New York bookseller, Warshaw assembled this collection over nearly fifty years. The Warshaw Collection of Business Americana: Accounting and Bookkeeping forms part of the Warshaw Collection of Business Americana, Subseries 1.1: Subject Categories. The Subject Categories subseries is divided into 470 subject categories based on those created by Mr. Warshaw. These subject categories include topical subjects, types or forms of material, people, organizations, historical events, and other categories. An overview to the entire Warshaw collection is available here: Warshaw Collection of Business Americana
Percy B. Eckhart films
Percy B. Eckhart was a lawyer, a prolific oil painter, and a supporter of the arts. Most of the film footage in this collection is of travel, but there is also film footage of his family, and of a fiction film.
Reddy Kilowatt Records
Hooks, Benjamin, Dr.
Xcel Energy
Reddy Communications, Inc.
More …
The records document the development and use of Reddy Kilowatt, a cartoon figure trademark created in 1926 by Ashton B. Collins, Sr. More than 150 investor-owned electric utilities in the United States and at least twelve foreign countries licensed the use of the Reddy Kilowatt trademark. The records include a wide range of textual and visual materials and sound and moving image recordings.
Sperry Rail Detector Car Collection
Business records related to the development of the rail detector cars used by railroads to find hidden flaws, which could cause catastrophic accidents in event of rail failure.
Website Records
This accession consists of two domains with mostly duplicate content maintained by Smithsonian Enterprises in association with the Air and Space Magazine. The domains, crawled May 11, 2014, utilize blog platforms and contain articles, blog posts, and image and video features encompassing every era of aviation and space exploration. Much of the …
Website Records
This accession consists of two domains with mostly duplicate content maintained by Smithsonian Enterprises in association with the Air and Space Magazine. The domains, crawled May 23, 2016, utilize blog platforms and contain articles, blog posts, and image and video features encompassing every era of aviation and space exploration. Much of the …
Wadsworth W. Mount Papers
Mount, John W.
Archival materials documenting five of Mount's numerous inventions: the solar still, a jet power burner, turnbuckles and swivel connectors for boats, the "wadnut" (a self-tightening fastener), and a method of joining industrial piping. The papers include notes on concepts, and on testing and prototypes; correspondence with patent attorneys and potential industrial users of the devices; photographs; biographical information on Mount; and a general subject file on his inventions.
Robert B. Rice Papers
Personal papers and correspondence (ca. 1946-1953) of Rice; publications, mostly on Diesel engines, their components and technical problems; material from Rice's academic career; directories of Diesel engine manufacturers and brochures describing their products; technical manuals and reprints of technical articles.
