Browsing by Title
Showing results 195 to 214 of 702
| Issue Date | Title | Author(s) |
| 1890 | "Eclipse" refrigerating machines for use in cold storage depots, packing houses, breweries, ice factories, etc. : ranging from 1 to 300 tons capacity | Frick Co. (Waynesboro, Pa.) |
| 1914 | The "economic" boiler (improved) | Erie City Iron Works (Erie, Pa.) |
| 1875 | Edgar Thompson's steel works at Braddock, Pennsylvania [sic] [graphic] | Pittsburgh Collection.; Pittsburgh Photographic Library Collection.; Carnegie Library of Pittsburgh. Pennsylvania Dept. |
| 1890 | The Edgar Thomson Steel Works and blast furnaces | Carnegie Brothers & Company, Limited. |
| 1900 | Electricity in the coal mine | Westinghouse Electric & Manufacturing Company. |
| 1896 | Electric locomotives | Barnes, David Leonard; Baldwin Locomotive Works; Burnham, Williams & Co; Westinghouse Electric & Manufacturing Company |
| 1927 | Electrification of rolling mills in the Structural Department, Homestead Works, Carnegie Steel Company | Westinghouse Electric & Manufacturing Company.; Association of Iron and Steel Electrical Engineers (U.S.) |
| 1914 | Electro-pneumatic interlocking | Union Switch and Signal Company. |
| 1922 | Elements of industrial heating | W.S. Rockwell Company. |
| 1907 | The emergency dam under construction, east side Gatun Locks [graphic] | Nelson, E. N.; Pittsburgh Collection.; Pittsburgh Photographic Library Collection.; Carnegie Library of Pittsburgh. Pennsylvania Dept. |
| 1890 | [Employees at a steel plant] [graphic] | Pittsburgh Collection.; Pittsburgh Photographic Library Collection.; Carnegie Library of Pittsburgh. Pennsylvania Dept. |
| 1890 | [Employees of the Jones & Laughlin Steel Corporation] [graphic] | Pittsburgh Album Collection.; Pittsburgh Photographic Library Collection.; Carnegie Library of Pittsburgh. Pennsylvania Dept. |
| 1882 | [Employees of the Phoenix Roll Company] [graphic] | Pittsburgh Album Collection.; Pittsburgh Photographic Library Collection.; Carnegie Library of Pittsburgh. Pennsylvania Dept. |
| 1893 | Employment of Pinkerton detectives | Oates, William C. (William Calvin), 1835-1910; United States. Congress. House. Committee on the Judiciary |
| 1920 | End-heating furnaces | W.S. Rockwell Company. |
| 1900 | [Engine 137 A] [graphic] | Brown, Abram M.; Abram Brown Collection.; Pittsburgh Photographic Library Collection.; Carnegie Library of Pittsburgh. Pennsylvania Dept. |
| 1905 | "Engine 8494 E-2A, 1905" [graphic] | Brown, Abram M.; Abram Brown Collection.; Pittsburgh Photographic Library Collection.; Carnegie Library of Pittsburgh. Pennsylvania Dept. |
| 1892 | Engineering mechanics | - |
| 1908 | Engines and boilers | Erie Engine Works |
| 1904 | English and American steam carriages and traction engines | Fletcher, William, b. 1847. |
Showing results 195 to 214 of 702
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