Showing Collections: 1 - 14 of 14
Abstract: Conectiv, Inc. was formed in 1998 by the merger of Atlantic Electric Incorporated and Delmarva Power and Light Company, two large regional power utilities that supplied Southern New Jersey and the Delmarva Peninsula. Almost all the images in this collection came originally from the corporate archive of the Delmarva Power and Light Company (DP&L).The majority of the images in this collection come from the Delmarva Power and Light Company (DP&L), a predecessor of Conectiv, Inc. The images can generally be divided into three categories: DP&L equipment and facilities, DP&L employees, and views of buildings, both commercial and residential, throughout northern Delaware.
Dates: circa 1940-1982
Abstract: The Edison Electric Institute is the trade association of the electric utility industry. The minutes of the Institute's Transmission and Distributing Committee (1935, 1941-1970) include both business transactions of the committee and professional papers of representatives of member utility companies on a variety of subjects related to the transmission and distribution of electricty.
Abstract: Frederic G. Cooper (1883-1962) was an honorary member of the Society of Illustrators. He worked for New York Edison from 1905 to 1926. These are miniature souvenir posters for the Electrical Exposition and Motor Shows sponsored by the New York Edison Company.
Abstract: The Leeds & Northrup Company thrived throughout the twentieth century as a premier manufacturer of precision measuring and scientific equipment. The bulk of the Leeds & Northrup Electrical Power Systems records come from three employees, whose work at Leeds & Northrup spanned from 1928-1981: W. Spencer Bloor (1918-2002), Nathan Cohn (1907-1989), and S. Byron Morehouse. All worked within the Instrumentation and Controls for Electric Power Application Division. The records include papers, presentations, correspondence, memos, blueprints, and other materials relating to the development of a national electrical power grid in the United States. Technological and commercial developments in automatic electric power generation control, stabilization of energy load across regions, and problems of interconnection feature prominently in these materials.
Abstract: Thomas William Harvey (1795-1854) was an important inventor in the arts of metalworking and metallurgy. The Harvey family papers primarily relate to Thomas William Harvey and his magnetic experiments. It also includes a biography written by his great-grandson Thomas W. Harvey (1884-1965), articles of association of the Harvey Galvanic Company, and two account books of the Harvey Electro Magnetic Company.
Abstract: Levi C. Stang (1890-1962) was an electrical engineer and general manager of several electric companies throughout the Midwest. His scrapbook chronicles his career and employment as an electrical engineer through selected letters and correspondence, newspaper and other clippings, blueprints, and photographs.
Abstract: Pennsylvania Power & Light traces its origins to the various water and gas light companies that began operating in the eastern part of the state during the mid-nineteenth century. The records of the Pennsylvania Power & Light Company predecessor and subsidiary companies document the history of the gas and electric utility industry in eastern Pennsylvania in the years between 1853 and 1957. The collection includes both the administrative and operating records of more than 1100 companies that merged to form the PP&L system.
Abstract: The Philadelphia Electric Company was incorporated under the laws of Pennsylvania on October 31, 1929, as a merger of The Philadelphia Electric Company (incorporated in Pa. on October 27, 1902), the Philadelphia Suburban-Counties Gas & Electric Company, and three other small utility companies. It is the primary gas and electric company for Philadelphia, its surrounding counties and Cecil and Harford Counties in northeastern Maryland. Their records consist of microfilm copies of the minute books of about 150 of the predecessor companies of the Philadelphia Electric Company.
Dates: 1836-1953; Majority of material found within 1890-1915
Abstract: The Savery family of Chester County, Pennsylvania, produced two generations of eminent mechanical engineers. The Savery family papers consist primarily of those of Thomas H. Savery (1837-1910), his son William H. Savery (1865-1949), and William H. Savery's daughter Sara L. Savery (1897-1979) conerning the family papermaking machinery businesses, financial investments, and real estate activities documented through both personal and professional correspondence, business records, blueprints, and reports.
Scope and Contents: Personal and business diaries of Thomas Savery documenting his career from 1864 to 1910 that include technical drawings and experimental data used in developing his patented papermaking machinery. Savery's career as machine shop foreman and general manager at Pusey & Jones is also described. The day to day activities of the shops in which he worked are detailed as well as his income, expenses, and investments. Among projects noted is the construction of Machinery Hall at the 1876 Centennial Exhibition. There are also discussions of his involvement in the Harper Ferry Electric Light & Power Company, York Haven Water & Power Company and York Haven Paper Company. There is a volume detailing his involvement in the Denver pulp and paper industry. Savery's involvement with the Wilmington Board of Trade and the Society of Friends are described in these volumes. There are also numerous notations on his personal and cultural life.
Abstract: Thomas Parke Hughes (1923-2014), was one of the leading historians of technology of his era. This collection consists of files relating to the research and production of Professor Hughes' two prize-winning books, Networks of Power, and Elmer Sperry: Inventor and Engineer. Also included are Elmer Sperry's original desk diaries.
Abstract: The Westinghouse Machine Company manufactured gas and steam engines, turbines and mechanical stokers. The vast corporate photographic archive from this division covers diverse topics including technical subjects showing surface condensers and reduction gears and components used to construct different types of turbines. There are building construction views and thorough documentation of the Essington property; specifically, this includes the blade, diaphragm, erecting, and forge shops, several different types of laboratories on the premise, a foundry and pickle house. In addition, there are images of the pattern storage house, power house, pump house, and salvage building
Abstract: The Westinghouse Machine Company began in 1880, and the company's first contract to build a turbine dates to 1896. The album contains a variety of images of products and facilities related to the Westinghouse Electric and Manufacturing Company. These include photographs of equipment such as boilers, generators, mechanical stokers, pumping machinery and turbines.
Abstract: The Westinghouse Machine Company manufactured gas and steam engines, turbines and mechanical stokers. This is one sixteen-page copy of the Westinghouse Electric & Manufacturing Company magazine from the South Philadelphia plant.
Dates: 1919 December
- Subject: Electric industries X
- Manuscripts and Archives 9
- Audiovisual Collections 5
- Electric utilities 5
- Electric industry workers 4
- Electric power-plants 4
- Public utilities 4
- Construction projects 3
- Engines 3
- Gas companies 3
- Public utility holding companies 3
- Biography 2
- Boiler-making industry 2
- Mechanical engineering 2
- Minutes 2
- Papermaking 2
- Papermaking machinery 2
- Air-brakes 1
- Automation 1
- Career development 1
- Coal mines and mining 1
- Coal-fired power plants 1
- Consolidation and merger of corporations 1
- Diaries 1
- Electric controllers 1
- Electric locomotives 1
- Electrical engineering 1
- Electrical engineers 1
- Employees' magazines, newsletters, etc. 1
- Engineering 1
- Engineering instruments 1
- Engineers 1
- Glass negatives 1
- Hydroelectric power plants 1
- Industrial buildings 1
- Industrial safety 1
- Investments 1
- Iron industry and trade 1
- Locomotives -- Performance 1
- Machine shops 1
- Natural gas 1
- Nuclear power plants 1
- Office buildings 1
- Pennsylvania 1
- Philadelphia (Pa.) 1
- Photograph albums 1
- Planographic prints 1
- Posters 1
- Quakers 1
- Railroad engineering 1
- Research, Industrial 1
- Scrapbooks 1
- Social history 1
- Trade associations 1
- Trade shows 1 ∧ less
- Savery, Thomas H., 1837-1910 2
- Westinghouse Electric & Manufacturing Company 2
- Cohn, Nathan, 1907-1989 1
- Conectiv, Inc 1
- Cooper, Fred G. (Frederic Gross), 1883-1962 1
- Delmarva Power and Light Company 1
- Des Moines Electric Company 1
- Edison Electric Institute. Transmission and Distribution Committee 1
- Electrical Exposition and Automobile Show (1912 : New York, N.Y.) 1
- Electrical Exposition and Motor Show (1913 : New York, N.Y.) 1
- Electrical Exposition and Motor Show (1914 : New York, N.Y.) 1
- Electrical Exposition and Motor Show (1915 : New York, N.Y.) 1
- Hughes, Thomas Parke 1
- Institute of Electrical and Electronics Engineers 1
- Leeds & Northrup Company 1
- Marion Electric Company 1
- North American Power Systems Interconnection Committee 1
- Parsons Engineering Company 1
- Pennsylvania Power & Light Company 1
- Philadelphia Electric Company 1
- Pusey and Jones Company 1
- Sargent & Lundy 1
- Savery family 1
- Savery, William H., 1865-1949 1
- Sperry, Elmer Ambrose, 1860-1930 1
- Stang, Levi C. (Levi Clemens), 1890-1962 1
- Westinghouse Air Brake Company 1
- Westinghouse Electric & Manufacturing Company. East Pittsburg Plant 1
- Westinghouse Electric Corporation 1 ∧ less