Igor I. Sikorsky, engineering manager of the Vought – Sikorsky Division of the former United Aircraft Corporation, used the Stratford, Conn., sites to design, build, and test his innovative helicopter designs. Sikorsky’s VS-300 model helicopter was the world’s first design which used the now industry-standard single main rotor with an auxiliary anti-torque tail rotor.
CT
Aircraft engines, considered unreliable during the first 20 years of aviation due to their need for liquid-cooling, heavy weight and other inconsistencies, were given a revolutionary boost with the development of Pratt & Whitney’s R-1340 Wasp Radial Engine in 1925.
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Image Credit: Courtesy Flickr/nostri-imago (CC BY 2.0)Image Caption: Pratt & Whitney Wasp A, R-1300 (R-1340)
2015
Bradley Intl. AirportWindsor LocksState: CTZip: 06096Country: USAWebsite: http://www.asme.org/about-asme/history/landmarks/topics-a-l/air-and-space-transportation/-149-hydromatic-propeller-%28ca--1938%29, http://files.asme.org/ASMEORG/Communities/History/Landmarks/5572.pdfCreator: Hamilton Standard
Rapid development of aircraft design in the 1930s required many related innovations, including propeller design. The hydromatic propeller by Hamilton Standard marked a significant advance over the counterweight-type, controllable pitch propeller. The first test flight of the prototype took place in 1938: the public demonstration was made by a United Air Lines DC-3 over New York City on April 6, 1938. It played a distinguished role in allied combat aircraft in World War II.
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Image Credit: Courtesy ASMEImage Caption: An early example of propeller innovations, including variable-pitch control and feathering capability.Era_date_from: 1938
1990
The Jake Brake permits large trucks to descend long, steep grades at a controlled speed. It was the first practical mechanism for altering on demand the valve timing on a truck diesel engine, thereby converting the engine to a power absorbing machine. The modified engine can continue to power the truck in normal operation, allowing service brakes to remain cool for emergency situations. Invented by Clessie Lyle Cummins (1886-1968), this device (produced by the Jacobs manufacturing company since 1961) has contributed significantly to highway safety.
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Image Credit: Courtesy Wikipedia/Sierra Fournier (CC BY-SA 3.0)Image Caption: Jacobs Engine Brake Retarder ("Jake Brake")Era_date_from: 1957
1985
Clyde's mill is a rare survivor of a once-commonplace seasonal rural industry. Until recently a cider mill could be found in every community where apples were grown. In the fall, mills converted the fruit of the orchard into drink just as the grist mill converted the grain into flour.
Although cider was produced on individual farms for private use, the centrally located mill became popular for farmers who would sell surplus apples to the mill and bring back the juice to ferment into hard cider. In 1881 Benjamin Clyde began pressing his apples at local mills and soon rented his own press.
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Image Credit: Courtesy Flickr/Erica Peterson (CC BY 2.0)Image Caption: The steam-powered cider press of BF Clyde's Cider Mill in action.Era_date_from: 1898
1994
This was a pioneering venture in mainline railroad electrification. It established single-phase alternating current as a technical and economical alternative to direct current. This concept exerted considerable influence over subsequent systems both in the United States and abroad. The major components of the system were developed by the engineering staffs of the New York, New Haven & Hartford Railroad and the Westinghouse Electric and Manufacturing Company of East Pittsburgh, Pennsylvania.
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Image Credit: Courtesy of the New York Public Library.Image Caption: Alternating-Current Electrification of the New York, New Haven & Hartford RailroadEra_date_from: 1907
1982
The Connecticut Light & Power Company pioneered the use of pumped storage in the United States at this hydroelectric station. First operated in 1929, the Rocky River Plant had two reversible pumps that somewhat resemble large hydroelectric turbines. This permitted significant improvements in the system efficiency of the company's network of hydroelectric and thermal-electric power generating plants. Water is pumped uphill through a penstock and stored in Lake Candlewood.
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Image Credit: Courtesy ASMEImage Caption: Rocky River Pumped-storage Hydroelectric PlantEra_date_from: 1929
1980
This was a pioneering venture in mainline railroad electrification and was a proving ground for railroad electrification technology. It established single-phase alternating current as a technical and economical alternative to direct current. This concept exerted considerable influence over subsequent systems both in the United States and abroad. The major components of the system were developed by the engineering staffs of the New York, New Haven & Hartford Railroad and the Westinghouse Electric and Manufacturing Company of East Pittsburgh, Pennsylvania.
Innovations
This was a pioneering venture in mainline railroad electrification and was a proving ground for railroad electrification technology. It established single-phase alternating current as a technical and economical alternative to direct current. This concept exerted considerable influence over…
Read More
The Connecticut Light & Power Company pioneered the use of pumped storage in the United States at this hydroelectric station. First operated in 1929, the Rocky River Plant had two reversible pumps that somewhat resemble large hydroelectric turbines. This permitted significant improvements in…
Read More
This was a pioneering venture in mainline railroad electrification. It established single-phase alternating current as a technical and economical alternative to direct current. This concept exerted considerable influence over subsequent systems both in the United States and abroad. The major…
Read More
Clyde's mill is a rare survivor of a once-commonplace seasonal rural industry. Until recently a cider mill could be found in every community where apples were grown. In the fall, mills converted the fruit of the orchard into drink just as the grist mill converted the grain into flour.
Although… Read More
The Jake Brake permits large trucks to descend long, steep grades at a controlled speed. It was the first practical mechanism for altering on demand the valve timing on a truck diesel engine, thereby converting the engine to a power absorbing machine. The modified engine can continue to power the… Read More
Rapid development of aircraft design in the 1930s required many related innovations, including propeller design. The hydromatic propeller by Hamilton Standard marked a significant advance over the counterweight-type, controllable pitch propeller. The first test flight of the prototype took place…
Read More
Aircraft engines, considered unreliable during the first 20 years of aviation due to their need for…
Read More
