Westinghouse Air Brake Company
Encyclopedia
The railway air brake was invented by George Westinghouse
George Westinghouse
George Westinghouse, Jr was an American entrepreneur and engineer who invented the railway air brake and was a pioneer of the electrical industry. Westinghouse was one of Thomas Edison's main rivals in the early implementation of the American electricity system...

 of New York
New York
New York is a state in the Northeastern region of the United States. It is the nation's third most populous state. New York is bordered by New Jersey and Pennsylvania to the south, and by Connecticut, Massachusetts and Vermont to the east...

 state in 1869. Soon after, he moved to Pittsburgh, Pennsylvania
Pennsylvania
The Commonwealth of Pennsylvania is a U.S. state that is located in the Northeastern and Mid-Atlantic regions of the United States. The state borders Delaware and Maryland to the south, West Virginia to the southwest, Ohio to the west, New York and Ontario, Canada, to the north, and New Jersey to...

, where he established the Westinghouse Air Brake Company (WABCO) on September 28, 1869. http://www.phmc.state.pa.us/bah/dam/rg/ys/r26ys18.htm

After having manufactured equipment in Pittsburgh for a number of years, he began to construct facilities and plants East of the city where homes for his employees were built. In 1889, the air brake manufacturing facility was moved to Wilmerding, Pennsylvania
Wilmerding, Pennsylvania
Wilmerding is a borough in Allegheny County, Pennsylvania, United States. The population was 2,190 at the 2010 census. It is located southeast of Pittsburgh. At the start of the twentieth century, it had extensive foundries and machine shops of the Westinghouse Air Brake Company. In 1900, the...

, and the company's general office building was built there in 1890.

WABCO's direct successor companies include WABCO Vehicle Control Systems
WABCO Vehicle Control Systems
WABCO Vehicle Control Systems is a provider of electronic braking, stability, suspension and transmission automation systems for heavy duty commercial vehicles....

, a commercial vehicle air brake manufacturer; and Wabtec
Wabtec
Wabtec Corporation is an American company formed by the merger of the Westinghouse Air Brake Company and MotivePower Industries Corporation in 1999....

, a railway equipment manufacturer, which have been owned and operated independently of each other since the mid-twentieth century.

History

The Westinghouse Air Brake Company was originally established by George Westinghouse in 1869. Westinghouse had developed many companies during this time of industrial growth at the beginning of the twentieth century. The Air Brake plant, that made for improved performance and increased speed on the nations railways, was moved to its new location in Wilmerding, Pennsylvania
Wilmerding, Pennsylvania
Wilmerding is a borough in Allegheny County, Pennsylvania, United States. The population was 2,190 at the 2010 census. It is located southeast of Pittsburgh. At the start of the twentieth century, it had extensive foundries and machine shops of the Westinghouse Air Brake Company. In 1900, the...

 in 1889. Wilmerding is a small town about 14 miles outside of Pittsburgh which, at the time, was only inhabited by about 5,000 people. Socialism
Socialism
Socialism is an economic system characterized by social ownership of the means of production and cooperative management of the economy; or a political philosophy advocating such a system. "Social ownership" may refer to any one of, or a combination of, the following: cooperative enterprises,...

 was strong in Wilmerding and it was a peaceful non-violent farming borough. It was thought to be “The Ideal Town” for the company because of its location right along the Pennsylvania Railroad
Pennsylvania Railroad
The Pennsylvania Railroad was an American Class I railroad, founded in 1846. Commonly referred to as the "Pennsy", the PRR was headquartered in Philadelphia, Pennsylvania....

 and its mainly blue collar inhabitants. The Air Brake Company employed 3,000 citizens from the surrounding Pittsburgh area, but its work force was composed almost entirely of individuals from Wilmerding.

This stretch of lightly populated farmland known as Wilmerding developed completely around this new and industrially important company and was finally put on the map. A little under one third of its population was somehow related and more often than not one would end up raising their children in the same home that they were raised in. After the company's development business thrived. Many of the passengers that were departing or coming into Wilmerding stopped to shop at these stores along the narrow sidewalk before heading home. One could get anything from hair cuts to comic books, groceries to lumber; Wilmerding was where you would find it.

Working conditions at the Westinghouse Air Brake Company (WA&B) were more than proficient and the company had many new developments in effect for its employees. In 1869 it was one of the first companies to institute a 9-hour work day and a 55-hour work week. WA&B also got the reputation for being the first industry in America to adopt half holidays on Saturday afternoons. A series of welfare options were also instituted to better the working and living conditions of its employees.

The Air Brake plant was obviously very prosperous and was nothing far from a gift for this small town. By 1905 over 2,000,000 freight, passenger, mail, baggage, and express cars and 89,000 locomotives were equipped with the Westinghouse Air Brakes. But just as in all big businesses, it had its ups and downs. There was one general complaint among the Wilmerding business men. It was that only about half of the workers could find work during the non-busy season. This made sense since these men and women depended entirely on the company. When the economy struggled and profits in the company declined, workers then had to alter their standard of living. Wilmerding’s prosperity and misfortune all depended on the success of the Air Brake Company and when the company was failing the citizens just had to try and adjust to its losses.

During this time, in the early 1900s, the Westinghouse Company built houses on a tract of land that it had purchased, in turn, it then sold those homes to its workers at a very inexpensive price. The company also offered educational and cultural activities, usually run through the local Y.M.C.A, to obtain better workers. WA&B catered to those who were not exactly fit in its working conditions. To insure a certain income to employees who might have been unfit for work because of illness or injury, an ordered sum would be paid to the beneficiary. Any employee under 50 was eligible for membership after a physical examination. The members contributed according to the class which they belonged, with their class being determined by the amount of money they made per month. Their contribution ranged from fifty cents to $1.50, which in turn in case of disability would receive benefits for thirty-nine consecutive weeks. According to Wilmerding News during this time, about 76% of WA&B’s employees held a membership with the company.

The Westinghouse Air Brake company was still producing products up until around the year 2000, under several different managers over the years. The company had become significantly less important with the shedding of Pittsburgh’s industrial past, but continued manufacturing its products.

The company has two 21st century successors, which are independent of each other.
One, which continues to design and manufacture railway air brakes in Wilmerding, Pennsylvania, merged with locomotive manufacturer MotivePower Industries, to form Wabtec
Wabtec
Wabtec Corporation is an American company formed by the merger of the Westinghouse Air Brake Company and MotivePower Industries Corporation in 1999....

. The other, now known as WABCO Holdings Inc, designs and manufactures control systems for commercial road vehicles, including air brakes, and is headquartered in Brussels
Brussels
Brussels , officially the Brussels Region or Brussels-Capital Region , is the capital of Belgium and the de facto capital of the European Union...

, Belgium. WABCO Holdings was floated in a 2007 initial public offering
Initial public offering
An initial public offering or stock market launch, is the first sale of stock by a private company to the public. It can be used by either small or large companies to raise expansion capital and become publicly traded enterprises...

 by American Standard
American Standard Brands
American Standard Brands is a closely held manufacturer of plumbing fixtures, sold under the American Standard, Crane, Fiat, Sanymetal, Showerite and Eljer brand names, based in Piscataway Township, New Jersey, United States. It is principally owned by Sun Capital Partners with Bain Capital...

, WABCO's owners for 30 years.

The straight air brake

The first form of the air brake consisted of an air pump, a main reservoir (pressure vessel
Pressure vessel
A pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially different from the ambient pressure.The pressure differential is dangerous and many fatal accidents have occurred in the history of their development and operation. Consequently, their design,...

), and an engineer's valve on the locomotive, and of a train pipe and brake cylinder on each car. One problem with this first form of the air brake was that braking was applied to the first cars in a train much sooner than to the rear cars, resulting in shocks and damages when the rear cars bunted against the cars ahead of them.

The main objection, however, was that it was not an automatic brake, i.e. even a minor mishap like a broken coupling
Coupling (railway)
A coupling is a mechanism for connecting rolling stock in a train. The design of the coupler is standard, and is almost as important as the railway gauge, since flexibility and convenience are maximised if all rolling stock can be coupled together.The equipment that connects the couplings to the...

 left the entire train without any brake power at all.

The plain automatic air brake

In 1872, George Westinghouse invented the automatic air brake by inventing the triple valve and by equipping each car with its own air cylinder. Air pressure is maintained in the auxiliary reservoirs and in the train pipe at all times when the brakes are not applied. An equilibrium of air pressure is maintained in the train pipe and in the auxiliary air cylinders.

To apply the brakes to all of the cars at about the same time, pressure is released from the train pipe, causing the triple valve on each car to apply the brakes. To release the brakes on each car, pressure is increased in the train pipe until an excess pressure above that of the pressure in each auxiliary cylinder is reached, which throws the triple valve so as to close the inlet to the brake cylinder and open the inlet to the auxiliary reservoir from the train pipe, thus allowing the equilibrium of the two pressures to be reached.

The quick action triple valve

Although the plain automatic air brake was a great improvement over the straight air brake, in an emergency the system still applied the brakes to the last cars in a train later than to the first cars in a train. To remedy that condition, George Westinghouse invented the quick action triple valve in 1887. It automatically vents air from the brake pipe locally on each car, which applies the brakes more quickly.

Electric railways

For the air brake to be employed on electric railways, an air compressor
Air compressor
An air compressor is a device that converts power into kinetic energy by compressing and pressurizing air, which, on command, can be released in quick bursts...

 that is powered by electricity is required. Powerful electric locomotive
Electric locomotive
An electric locomotive is a locomotive powered by electricity from overhead lines, a third rail or an on-board energy storage device...

s were produced by the Westinghouse Electric & Manufacturing Company
Westinghouse Electric (1886)
Westinghouse Electric was an American manufacturing company. It was founded in 1886 as Westinghouse Electric Company and later renamed Westinghouse Electric Corporation by George Westinghouse. The company purchased CBS in 1995 and became CBS Corporation in 1997...

 and by other companies.

See also

  • WABCO Vehicle Control Systems
    WABCO Vehicle Control Systems
    WABCO Vehicle Control Systems is a provider of electronic braking, stability, suspension and transmission automation systems for heavy duty commercial vehicles....

     – a successor of Westinghouse Air Brake Company
  • Wabtec
    Wabtec
    Wabtec Corporation is an American company formed by the merger of the Westinghouse Air Brake Company and MotivePower Industries Corporation in 1999....

     - also a successor of Westinghouse Air Brake Company
  • Westinghouse Brake and Signal Company Ltd
    Westinghouse Brake and Signal Company Ltd
    The Westinghouse Brake & Signal Company Ltd was created in 1935 when the Westinghouse Brake & Saxby Signal Company Ltd, dropped the 'Saxby' from their title...

     – Chippenham, Wiltshire, UK
  • Knorr-Bremse
    Knorr-Bremse
    Knorr-Bremse is a manufacturer of braking systems for rail and commercial vehicles that has operated in the field for over 100 years. The company also produces door systems for rail vehicles and torsional dampers. In 2009, the Group's workforce of over 14,000 achieved worldwide sales of EUR 2.761...

     – successor of the Chippenham air brake business
  • Union Switch & Signal
    Union Switch & Signal
    Union Switch and Signal was a supplier of railway signaling equipment, systems and services in Pittsburgh, Pennsylvania. As of January 1, 2009, US&S is known as Ansaldo STS USA.-History:...

     - WABCO subsidiary
  • Melpar
    Melpar
    The story of how Washington’s technology business unfolded during the 20th century would be incomplete without a discussion of Melpar. From the mid-1950s to the mid-1960s Melpar Inc was the preeminent technological company in Washington–not only was it the largest private employer in the capital...

    - 'Westinghouse Air Brake' subsidiary from 1951 until the '70s

External links

  • Wabtec Corporation - Westinghouse Air Brake Company merged with MotivePower Industries, Inc.
  • WABCO - successor automotive air brake business
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