Papers relating to the Pelton Water Wheel Company of San Francisco, California. Materials include correspondence; business records; photographs, including cyanotypes; negatives, images of turbines; advertisements; journals; blueprints; articles; and trade literature, including catalogs.

The collection consists of records documenting the Lombard Governor Company: photographs (including glass plate negatives), blueprints, printed material, price lists, reports, catalogs and trade literature, bulletins, and a notebook of patents.

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

The records contain business and legal records; correspondence; patents and patent files; specifications; charts;blueprints; mechanical drawings and original catalog art; photographs and negatives; catalogs, 1868-1870, 1877-1878, 1883, 1900, 1902, 1924; and clippings.

The collection consists of bound photograph albums and loose photographs documenting the construction of the Adams Power Station (hydroelectric plant) and allied structures of the Niagara Falls Power Company, 1899-1919.

These records document the activities of the J. & W. Jolly Company of Holyoke, Massachusetts. Included are turbine test reports from the testing flume of the Holyoke Water Power Company, 1890-1912; photographs of vertical water turbine assemblies and parts, ca 1880; a record of wheels, and turbines, ca1896-1921; and tracings of governors for turbin...

Papers of Uriah A. Boyden (1804-1879), a Boston civil and mechanical engineer and the inventor of the Boyden turbine. Materials include correspondence, notes, calculations, articles, notebooks, legal documents, financial documents, patents and patent assignments, design drawings, newspaper clippings, pamphlets, business cards, and a print of a daguerreotype.

The papers document the life and work of William R. Hutton, a civil engineer during the late 1800s to the early 1900s. Materials include diaries, notebooks, correspondence, letterpress copy book, printed materials, publications, specifications, photographs, drawings, and maps that document the construction of several architectural and engineering projects during this period. Most notable are the records containing information related to the construction of the Chesapeake and Ohio Canal, Hudson River Tunnel, the Washington Aqueduct, the Kanawha River Canal, and the Washington/Harlem River Bridge. There are also several records about railroads in the state of Maryland, the District of Columbia and elsewhere, including the Western Maryland Railroad, Baltimore and Ohio Railroad, Colorado Midlands Railway, Baltimore and Drum Point Railroad, the Northern Adirondack Railroad, and the Pittsfield and Williamstown Railroad. The records can be used to track the progression of these projects, and engineering innovation during the late 1800s to the early 1900s.

This collection is divided into five series. The first series consists of biographical material, including notebooks 1866; 1873; 1882; 1886; correspondence, 1867‑1899, both from and to James A. Millholland regarding a trip to England and purchase and shipment of railroad rails; the photographic series contains portraits of both Millhollands and ca...

Photographs, publications and correspondence related to D. Ward King's invention the King Road Drag, or the Split-Oak drag, which improved rural travel in the early 20th century by introducing a simple design and low-effort system for grading poor-quality roads. The King Road Drag was promoted heavily across the United States and Canada via the "Good Roads Campaign" originally sponsored by the railroad companies in the early decades of the twentieth century.