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Sikorsky VS-300
Society: AIAAMain Category: Aerospace & AviationSub Category: ManufacturingEra: 1910-1919DateCreated: 1911Sikorsky Memorial AirportStratfordState: CTCountry: USAWebsite: https://www.aiaa.org/SecondaryTwoColumn.aspx?id=19687Creator: Sikorsky, Igor I.

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.

Image Caption: Sikorsky’s VS-300 model helicopter
Pratt & Whitney Wasp A, R-1300 (R-1340)
Society: ASMEMain Category: MechanicalEra: 1920-1929DateCreated: 1925New England Air MuseumWindsor LocksState: CTZip: 06096Country: USAWebsite: https://www.asme.org/about-asme/engineering-history/landmarks/260-pratt-whitney-r1340-wasp-radialCreator: Rentschler, Fredrick

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.

YearAdded:
2015
Image Credit: Courtesy Flickr/nostri-imago (CC BY 2.0)Image Caption: Pratt & Whitney Wasp A, R-1300 (R-1340)
Hydromatic Propeller
Society: ASMEMain Category: Aerospace & AviationSub Category: AerospaceEra: 1930-1939DateCreated: 1938New England Air Museum
Bradley Intl. Airport
Windsor 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.

YearAdded:
1990
Image Credit: Courtesy ASMEImage Caption: An early example of propeller innovations, including variable-pitch control and feathering capability.Era_date_from: 1938
Society: ASMEMain Category: Mechanical, RoadSub Category: Road TransportationEra: 1950-1959DateCreated: 1957Jacobs Manufacturing CompanyBloomfieldState: CTZip: 06002Country: USAWebsite: http://www.asme.org/about-asme/history/landmarks/topics-m-z/road-and-off-road-transportation/-108-jacobs-engine-brake-retarder-%281957%29Creator: Cummins, Clessie Lyle
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.
YearAdded:
1985
Image Credit: Courtesy Wikipedia/Sierra Fournier (CC BY-SA 3.0)Image Caption: Jacobs Engine Brake Retarder ("Jake Brake")Era_date_from: 1957
Society: ASMEMain Category: MechanicalSub Category: Food ProcessingEra: 1890-1899DateCreated: 1898Clyde's Cider MillOld MysticState: CTZip: 06355Country: USAWebsite: http://www.asme.org/about-asme/history/landmarks/topics-a-l/food-processing/-181-bf-clyde-s-cider-mill-%281898%29Creator: Clyde, Benjamin, Boomer & Boschert
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.
YearAdded:
1994
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
AC Electrification of the New York, New Haven & Hartford Railroad (DUPE: IEEE+ASME)
Society: IEEEMain Category: ElectricalSub Category: Power, Energy & Industry ApplicationEra: 1900-1909DateCreated: 1907New York to New Haven to BostonCos CobState: CTCountry: USAWebsite: http://www.ieeeghn.org/wiki/index.php/Milestones:Alternating-Current_Electrification_of_the_New_York,_New_Haven_%26_Hartford_Railroad,_1907Creator: New York, New Haven & Hartford Railroad , Westinghouse Electric

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.

YearAdded:
1982
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
Rocky River Pumped-storage Hydroelectric Plant
Society: ASMEMain Category: Electric, MechanicalSub Category: WaterEra: 1920-1929DateCreated: 1929Rocky River StationHartfordState: CTZip: 06101Country: USAWebsite: http://www.asme.org/about-asme/history/landmarks/topics-a-l/electric-power-production-water/-56-rocky-river-pumped-storage-hydroelectric-plant, https://www.asme.org/getmedia/1b393410-996b-4172-b5b7-628efc383e7d/56-Rocky-River-Hydroelectric-Station.aspxCreator: Connecticut Light & Power Company

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.

YearAdded:
1980
Image Credit: Courtesy ASMEImage Caption: Rocky River Pumped-storage Hydroelectric PlantEra_date_from: 1929
AC Electrification New York, New Haven & Hartford
Society: ASMEMain Category: MechanicalSub Category: Rail TransportationEra: 1900-1909DateCreated: 1907Cos Cob Power StationCos CobState: CTCountry: USAWebsite: https://www.asme.org/about-asme/who-we-are/engineering-history/landmarks/76-ac-electrification-new-york-new-haven-hartfordCreator: New York, New Haven & Hartford Railroad

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. 

Image Caption: A New Haven EP-1 electric locomotive, circa 1907. Note the small DC pantograph between the two larger AC pantographs.Era_date_from: 1907
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