George Westinghouse


George Westinghouse Jr. (October 6, 1846 – March 12, 1914) was an American entrepreneur and engineer based in Pennsylvania who created the railway air brake and was a pioneer of the electrical industry, receiving his first patent at the age of 19. Westinghouse saw the potential of using alternating current for electric power distribution in the early 1880s and put all his resources into developing and marketing it. This put Westinghouse's business in direct competition with Thomas Edison, who marketed direct current for electric power distribution. In 1911 Westinghouse received the American Institute of Electrical Engineers's (AIEE) Edison Medal "For meritorious achievement in connection with the development of the alternating current system".[1] He founded the Westinghouse Electric Corporation in 1886.[2]

George Westinghouse
Westinghouse in 1884
Born(1846-10-06)October 6, 1846
DiedMarch 12, 1914(1914-03-12) (aged 67)
Known forFounder of the original Westinghouse Electric Corporation
Marguerite Erskine Walker
(m. 1867)

Early years


George Westinghouse was born in 1846 in Central Bridge, New York (see George Westinghouse Jr. Birthplace and Boyhood Home), the son of Emeline (Vedder) and George Westinghouse Sr., a machine shop owner.[3] His ancestors came from Westphalia in Germany, who first moved to England and then emigrated to the US. The name had been Anglicized from Westinghausen.

From his youth, Westinghouse was talented with machinery and business. At the breakout of the Civil War in 1862, the 15-year-old Westinghouse enlisted in the New York National Guard and served until his parents urged him to return home. The following year, he persuaded his parents to allow him to re-enlist, whereupon he joined Company M of the 16th New York Cavalry and earned promotion to the rank of corporal. In December 1864 he resigned from the Army to join the Navy, serving as Acting Third Assistant Engineer on the gunboat USS Muscoota through the end of the war.[4] After his military discharge in August 1865, he returned to his family in Schenectady and enrolled at Union College. He lost interest in the curriculum and dropped out in his first term.

Westinghouse was 19 years old when he created his first invention, a rotary steam engine.[5][6] He also devised the Westinghouse Farm Engine. At age 21 he invented a "car replacer", a device to guide derailed railroad cars back onto the tracks, and a reversible frog, a device used with a railroad switch to guide trains onto one of two tracks.[5][7]

Air brakes

Westinghouse Steam and Air Brakes (U.S. patent 144,006)

At about this time, he witnessed a train wreck where two engineers saw one another, but were unable to stop their trains in time using the existing brakes. Brakemen had to run from car to car, on catwalks atop the cars, applying the brakes manually on each car.[8]

In 1869, at age 22, Westinghouse invented a railroad braking system using compressed air. The Westinghouse system used a compressor on the locomotive, a reservoir and a special valve on each car, and a single pipe running the length of the train (with flexible connections) which both refilled the reservoirs and controlled the brakes, allowing the engineer to apply and release the brakes simultaneously on all cars. It is a failsafe system, in that any rupture or disconnection in the train pipe will apply the brakes throughout the train. It was patented by Westinghouse on October 28, 1873.[9]

Westinghouse pursued many improvements in railway signals (which then used oil lamps). In 1881 he founded the Union Switch and Signal Company to manufacture his signaling and switching inventions.[10][11]

Electric power distribution

Westinghouse Electric Company 1888 catalog advertising their "Alternating System"

Westinghouse's interests in gas distribution and telephone switching led him to become interested in the then-new field of electrical power distribution in the early 1880s. Electric lighting was a growing business with many companies building outdoor direct current (DC) and alternating current (AC) arc lighting based street lighting systems. At the same time, Thomas Edison was launching the first DC electric utility designed to light homes and businesses with his patented incandescent bulb. In 1884, Westinghouse started developing his own DC domestic lighting system and hired physicist William Stanley to work on it. Westinghouse became aware of the new European alternating current systems in 1885 when he read about them in the UK technical journal Engineering.[12] AC had the ability to be "stepped up" in voltage by a transformer for distribution and then "stepped down" by a transformer for consumer use, allowing large centralized power plants to supply electricity long distance in cities with more dispersed populations. This was an advantage over the low voltage DC systems being marketed by Thomas Edison's electric utility which had a limited range due to the low voltages used. Westinghouse saw AC's potential to achieve greater economies of scale as way to build a truly competitive system instead of simply building another barely competitive DC lighting system using patents just different enough to get around the Edison patents.[13]

Westinghouse patent for an AC lighting system with battery backup from 1887 (U.S. patent 373,035)

In 1885 Westinghouse imported a number of Gaulard–Gibbs transformers and a Siemens AC generator, to begin experimenting with AC networks in Pittsburgh. Stanley, assisted by engineers Albert Schmid and Oliver B. Shallenberger, developed the Gaulard–Gibbs transformer design into the first practical transformer.[14] In 1886, with Westinghouse's backing, Stanley installed the first multiple-voltage AC power system in Great Barrington, Massachusetts, a demonstration lighting system driven by a hydroelectric generator that produced 500 volts AC stepped down to 100 volts to light incandescent bulbs in homes and businesses. That same year, Westinghouse formed the "Westinghouse Electric & Manufacturing Company";[15] in 1889 he renamed it as "Westinghouse Electric Corporation".

War of currents


The Westinghouse company installed 30 more AC-lighting systems within a year and by the end of 1887 it had 68 alternating current power stations to Edison's 121 DC-based stations.[16] This competition with Edison led in the late 1880s to what has been called the "war of currents" with Thomas Edison and his company joining in with a spreading public perception that the high voltages used in AC distribution were unsafe. Edison even suggested a Westinghouse AC generator be used in the State of New York's new electric chair. Westinghouse also had to deal with an AC rival, the Thomson-Houston Electric Company, which had built 22 power stations by the end of 1887[16] and by 1889 had bought out another competitor, the Brush Electric Company. Thomson-Houston was expanding its business while trying to avoid patent conflicts with Westinghouse, arranging deals such as coming to agreements over lighting company territory, paying a royalty to use the Stanley transformer patent, and allowing Westinghouse to use their Sawyer–Man incandescent bulb patent. The Edison company, in collusion with Thomson-Houston, managed to arrange in 1890 that the first electric chair was powered with a Westinghouse AC generator, forcing Westinghouse to try to block this move by hiring the best lawyer of the day to (unsuccessfully) defend William Kemmler, the first man scheduled to die in the chair. The War of Currents ended with financiers, such as J. P. Morgan, pushing Edison Electric towards AC and pushing out Thomas Edison.[17] In 1892 the Edison company was merged with the Thomson-Houston Electric Company to form General Electric, a conglomerate with the board of Thomson-Houston in control.[18]

Development and competition


During this period, Westinghouse continued to pour funds and engineering resources into the goal of building a completely integrated AC system — obtaining the Sawyer–Man lamp by buying Consolidated Electric Light, developing components such as an induction meter,[19] and obtaining the rights to inventor Nikola Tesla's brushless AC induction motor along with patents for a new type of electric power distribution, polyphase alternating current.[20][21] The acquisition of a feasible AC motor gave Westinghouse a key patent for his system, but the financial strain of buying up patents and hiring the engineers needed to build it meant development of Tesla's motor had to be put on hold for a while.[22]

In 1890 Westinghouse's company was in trouble. The near collapse of Barings Bank in London triggered the financial panic of 1890, causing investors to call in their loans.[23] The sudden cash shortage forced the company to refinance its debts. The new lenders demanded that Westinghouse cut back on what looked like excessive spending on acquisition of other companies, research, and patents.[23][24]

Workmen with one of the two Westinghouse alternators used in the Ames Hydroelectric AC power installation

In 1891 Westinghouse built a hydroelectric AC power plant, the Ames Hydroelectric Generating Plant near Ophir, Colorado. The plant supplied power to the Gold King Mine 3.5 miles away. This was the first successful demonstration of long-distance transmission of industrial-grade alternating current power and used two 100 hp Westinghouse alternators, one working as a generator producing 3000-volt, 133-Hertz, single-phase AC, and the other used as an AC motor.[25] At the beginning of 1893 Westinghouse engineer Benjamin Lamme had made great progress developing an efficient version of Tesla's induction motor and Westinghouse Electric started branding their complete polyphase AC system as the "Tesla Polyphase System", announcing Tesla's patents gave them patent priority over other AC systems and their intentions to sue patent infringers.[26]

In 1893, George Westinghouse won the bid to light the 1893 World's Columbian Exposition in Chicago with alternating current, slightly underbidding General Electric to get the contract.[27][28] This World's Fair devoted a building to electrical exhibits. It was a key event in the history of AC power, as Westinghouse demonstrated the safety, reliability, and efficiency of a fully integrated alternating current system to the American public.[29]

Aerial view of Niagara Falls, with the American Falls at left and the Canadian Horseshoe Falls on the right

Westinghouse's demonstration that they could build a complete AC system at the Columbian Exposition was instrumental in them getting the contract for building a two-phase AC generating system, the Adams Power Plant, at Niagara Falls in 1895. At the same time, a contract to build the three-phase AC distribution system the project needed was awarded to General Electric.[30] The early to mid-1890s saw General Electric, backed by financier J. P. Morgan, involved in costly takeover attempts and patent battles with Westinghouse Electric. The competition was so costly a patent-sharing agreement was signed between the two companies in 1896.[31]

Other projects


In 1889, Westinghouse purchased several mining claims in the Patagonia Mountains of southeastern Arizona and formed the Duquesne Mining & Reduction Company. A year later he founded what is now the ghost town of Duquesne to use as his company headquarters. He lived in a large Victorian frame house, which still stands, but in disrepair. Duquesne grew to over a 1,000 residents and the mine reached its peak production in the mid-1910s.[32][33]

With AC networks expanding, Westinghouse turned his attention to electrical power production. At the outset, the available generating sources were hydroturbines where falling water was available, and reciprocating steam engines where it was not. Westinghouse felt that reciprocating steam engines were clumsy and inefficient, and wanted to develop some class of "rotating" engine that would be more elegant and efficient.

One of his first inventions had been a rotary steam engine, but it had proven impractical. The British engineer Charles Algernon Parsons began experimenting with steam turbines in 1884, beginning with a 10-horsepower (7.5 kW) turbine. Westinghouse bought rights to the Parsons turbine in 1885, improved the Parsons technology, and increased its scale.

The residence of George Westinghouse in Washington, D.C., from 1901 to 1914

In 1898 Westinghouse demonstrated a 300-kilowatt unit, replacing reciprocating engines in his air-brake factory. The next year he installed a 1.5-megawatt, 1,200 rpm unit for the Hartford Electric Light Company.

Westinghouse then developed steam turbines for maritime propulsion. Large turbines were most efficient at about 3,000 rpm, while an efficient propeller operated at about 100 rpm. That required reduction gearing, but building reduction gearing that could operate at high rpm and at high power was difficult, since a slight misalignment would shake the power train to pieces. Westinghouse and his engineers devised an automatic alignment system that made turbine power practical for large vessels.

Westinghouse remained productive and inventive almost all his life. Like Edison, he had a practical and experimental streak. At one time, Westinghouse began to work on heat pumps that could provide heating and cooling.

Westinghouse was after a perpetual motion machine, and the British physicist Lord Kelvin, one of Westinghouse's correspondents, told him that he would be violating the laws of thermodynamics. Westinghouse replied that might be the case, but it made no difference. If he couldn't build a perpetual-motion machine, he would still have a heat pump system that he could patent and sell.

With the introduction of the automobile after the turn of the century, Westinghouse went back to earlier inventions and devised a compressed air shock absorber for automobile suspensions.

Personal life, later life, and death

George Westinghouse, c. 1906
Westinghouse's grave in Arlington National Cemetery

In 1867, Westinghouse met and soon married Marguerite Erskine Walker. They were married for 47 years,[34] and had one son, George Westinghouse III, who had six children.[35]

Westinghouse remained a captain of American industry until 1907, when the financial panic of 1907 led to his resignation from control of the Westinghouse company. By 1911, he was no longer active in business, and his health was in decline.[36]

George Westinghouse died on March 12, 1914, in New York City at age 67. He was initially interred in Woodlawn Cemetery, Bronx, NY then removed on December 14, 1915. As a Civil War veteran, he was buried in Arlington National Cemetery, along with his wife Marguerite, who survived him by three months. She had also been initially interred in Woodlawn and removed and reinterred at the same time as George.[37]

Honors and awards

The Westinghouse Memorial in Schenley Park

In 1918 his former home, Solitude, was razed and the land given to the City of Pittsburgh to establish Westinghouse Park. In 1930, the Westinghouse Memorial, funded by his employees, was placed in Schenley Park in Pittsburgh. Also named in his honor, George Westinghouse Bridge is near the site of his Turtle Creek plant. Its plaque reads:

SEPTEMBER 10, 1932

The George Westinghouse Jr. Birthplace and Boyhood Home in Central Bridge, New York, was listed on the National Register of Historic Places in 1986.[38]

In 1989, Westinghouse was inducted into the National Inventors Hall of Fame.




  • U.S. patent 34,605, grain and seed winnowers
  • U.S. patent 106,899, improvements in steam engine and pump
  • U.S. patent 109,695, improvement in atmospheric car-brake pipes
  • U.S. patent 136,631, improvement in steam-power-brake couplings
  • U.S. patent 149,901, improvement in valves for fluid brake-pipes
  • U.S. patent 159,533, pneumatic pump
  • U.S. patent 218,149, improvement in fluid-pressure brake apparatus
  • U.S. patent 280,269, fluid-pressure regulator
  • U.S. patent 366,362, electrical converter
  • U.S. patent 399,639, system of electrical distribution
  • U.S. patent 314,089, system for the protection of railroad-tracks and gas-pipe lines
  • U.S. patent 400,420, fluid-meter
  • U.S. patent 425,059, fluid-pressure automatic brake mechanism
  • U.S. patent 427,489, alternating current electric meter
  • U.S. patent 437,740, fluid-pressure automatic brake
  • U.S. patent 446,159, switch and signal apparatus
  • U.S. patent 454,129, pipe-coupling
  • U.S. patent 497,394, conduit electric railway
  • U.S. patent 499,336, draw-gear apparatus for cars
  • U.S. patent 543,280, incandescent electric lamp
  • U.S. patent 550,465, electric railway
  • U.S. patent 579,506, current-collecting device for railway-vehicles
  • U.S. patent 595,007, elevator
  • U.S. patent 595,008, electric railway
  • U.S. patent 609,484, fluid pressure automatic brake
  • U.S. patent 672,114, draft appliance for railway cars
  • U.S. patent 672,117, draw-gear and buffing apparatus
  • U.S. patent 676,108, electric railway system
  • U.S. patent 687,468, draw-gear and buffing apparatus
  • U.S. patent 727,039, automatic fluid pressure brake apparatus
  • U.S. patent 922,827, gearing
  • U.S. patent 995,508, elastic-fluid turbine
  • U.S. patent 1,119,913, electric railway


  1. ^ "George Westinghouse". IEEE Global History Network. IEEE. Retrieved 22 July 2011.
  2. ^ Becerra-Fernandez, Irma; Rajiv Sabherwal (2014). Knowledge Management: Systems and Processes. Taylor & Francis. p. 241. ISBN 9781317503026 – via Google Books.
  3. ^ "Westinghouse__George.html". Archived from the original on 17 October 2015. Retrieved 7 October 2017.
  4. ^ Register of Commissioned Officers of the United States Navy. 1865. p. 209.
  5. ^ a b George Westinghouse Timeline Archived October 21, 2014, at the Wayback Machine
  6. ^ George Westinghouse article at Encyclopædia Britannica
  7. ^ He later patented the device. It was issued as U.S. patent 76,365 in April 1868, when he was 22. It was reissued as U.S. patent RE3584 in August 1869.
  8. ^ "The Life of a Brakeman – The Neversink Valley Museum of History & Innovation". Retrieved 6 May 2022.
  9. ^ "Improvement in steam and air brakes". Retrieved 7 October 2017.[dead link]
  10. ^ Witzel, Morgen, ed. (2006). Encyclopedia of the History of American Management (1st ed.). Continuum – via Credo Reference.
  11. ^ Geisst, Charles R., ed. (2005). Encyclopedia of American Business History (1st ed.). Facts on File – via Credo Reference.
  12. ^ Moran 2002, p. 42.
  13. ^ Tesla: Inventor of the Electrical Age by W. Bernard Carlson. Princeton University Press. 2013. p. 89.
  14. ^ "William Stanley – Engineering Hall of Fame". Edison Tech Center. 2015. Retrieved 7 October 2017.
  15. ^ "Steam Hammer, Westinghouse Works, 1904". World Digital Library. May 1904. Retrieved 28 July 2013.
  16. ^ a b Bradley, Robert L. Jr. (2011). Edison to Enron: Energy Markets and Political Strategies. John Wiley & Sons. p. 50. ISBN 978-1118192511. Retrieved 7 October 2017 – via Google Books.
  17. ^ Quentin R. Skrabec, George Westinghouse: Gentle Genius, p. 97
  18. ^ Bradley, Robert L., Jr. (2011). Edison to Enron: Energy Markets and Political Strategies. New York: John Wiley & Sons. ISBN 978-0-47091-736-7, pp. 28–29
  19. ^ Seifer, Marc (24 October 2011). Marc Seifer, Wizard: The Life and Times of Nikola Tesla, p. 1713. ISBN 9780806535562.
  20. ^ Klooster, John W. (2009). John W. Klooster, Icons of Invention: The Makers of the Modern World from Gutenberg to Gates, p. 305. ISBN 9780313347436.
  21. ^ Jonnes, Jill (19 August 2003). Jill Jonnes, Empires of Light: Edison, Tesla, Westinghouse, and the Race to Electrify the World, Edison Declares War. ISBN 9781588360007.
  22. ^ Quentin R. Skrabec, George Westinghouse: Gentle Genius, p. 127
  23. ^ a b Tesla: Inventor of the Electrical Age by W. Bernard Carlson. Princeton University Press. 2013. p. 130.
  24. ^ Jill Jonnes (2004). Empires of Light: Edison, Tesla, Westinghouse, and the Race to Electrify the World, Random House, p. 29 [ISBN missing]
  25. ^ Mattox, D. M. (2013). The Foundations of Vacuum Coating Technology. Elsevier Science. p. 39. ISBN 978-0080947051. Retrieved 7 October 2017 – via Google Books.
  26. ^ Carlson, W. Bernard (2013). Tesla: Inventor of the Electrical Age, Princeton University Press, p. 167 [ISBN missing]
  27. ^ Moran 2002, p. 97.
  28. ^ Quentin R. Skrabec, George Westinghouse: Gentle Genius, pp. 135–137
  29. ^ Chaim R. Rosenberg (2009). America at the Fair: Chicago's 1893 World's Columbian Exposition. Arcadia Publishing, [ISBN missing] [page needed]
  30. ^ Carlson, W. Bernard (2013). Tesla: Inventor of the Electrical Age, Princeton University Press, pp. 167–173
  31. ^ Skrabec, Quentin R.; Westinghouse, George. "Gentle Genius". History. p. 190. Agreement stayed in effect until 1911
  32. ^ John and Bette Bosma (April 2006). "Southwest Arizona Ghost Towns Harshaw, Mowry, Washington Camp, Duquesne, Lochiel" (PDF). Retrieved 10 January 2015.
  33. ^ Sherman, James E. & Barbara H. (1969). Ghost Towns of Arizona. University of Oklahoma. ISBN 0806108436.
  34. ^ Henry Prout, A Life of George Westinghouse, American Society of Mechanical Engineers, 1921 p. 3
  35. ^ Westinghouse clan gathers here, Pittsburgh Post-Gazette, November 10, 2008
  36. ^ R., Skrabec, Quentin (2007). George Westinghouse : gentle genius. New York: Algora Pub. ISBN 978-0875865089. OCLC 123307869.{{cite book}}: CS1 maint: multiple names: authors list (link)
  37. ^ "Burial Detail: George Westinghouse". ANC Explorer.
  38. ^ "National Register Information System". National Register of Historic Places. National Park Service. 13 March 2009.


  • American Society of Mechanical Engineers, Transactions of the American Society of Mechanical Engineers. The electrification of Railways, G. Westinghouse. Page 945+.
  • Fraser, J. F. (1903). America at work. London: Cassell. Page 223+.
  • Leupp, Francis E. (1918). George Westinghouse; his life and achievements Boston: Little, Brown and Company.
  • Hubert, P. G. (1894). Men of achievement. Inventors. New York: Charles Scribner's Sons. Page 296+.
  • Jonnes, Jill (2003). Empires of Light: Edison, Tesla, Westinghouse, and the Race to Electrify the World. New York: Random House. ISBN 978-0-375-75884-3
  • Klein, Maury (2009). The Power Makers: Steam, Electricity, and the Men Who Invented Modern America. New York: Bloomsbury Press. ISBN 978-1596916777
  • Moran, Richard (2002). Executioner's current: Thomas Edison, George Westinghouse, and the invention of the electric chair. New York: Alfred A. Knopf. ISBN 978-0-375-72446-6.
  • New York Air Brake Company. (1893). Instruction book. 1893.
  • Prout, Henry G. A Life of George Westinghouse.
  • Westinghouse Air Brake Company. (1882). Westinghouse automatic brake. (ed., Patents on p. 76.)
External videos
  Booknotes interview with Jill Jonnes on Empires of Light, October 26, 2003, C-SPAN
  • Westinghouse Corporation
  • Booknotes interview with Jill Jonnes on Empires of Light: Edison, Tesla, Westinghouse and the Race to Electrify the World, October 26, 2003.
  • ANC Explorer – Westinghouse's grave at Arlington National Cemetery