This mechanism allowed the manual closing of a well, saved lives and prevented surface oil accumulation at drilling sites, quickly becoming an industry standard. In the early days of oilfield operations, there was no way to control the underground pressures encountered during drilling. When an oil or gas reservoir was tapped, wells were allowed to "blow out" until pressure was reduced sufficiently to allow capping. Many inventors attempted to develop a device to control such blowouts. In 1922, oil wildcatter James Smither Abercrombie (1891-1975) and machinist Harry S.
USA
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Image Credit: Original Image: Flickr/Ed Schipul (CC BY-SA 2.0)Image Caption: A modern Blowout Preventer (BOP)Era_date_from: 1922
2003
"The Alexanderson radio alternator was a high-power, radio-frequency source which provided reliable transoceanic radiotelegraph communication during and after World War I. Ernst F.W. Alexanderson (1878-1975), a General Electric engineer, designed radio alternators with a frequency range to 100 kHz and a power capability from 2 kW to 200 kW.
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Image Credit: Public Domain; Produced prior to 1/1/1923Image Caption: Alexanderson Radio AlternatorEra_date_from: 1904
1992
When opened in 1909, the Queensboro Bridge had the two longest steel cantilever spans in the world - 1,182 feet from Manhattan to Blackwell's Island and 984 feet from Blackwell's Island to Queens. These would remain the world's longest cantilever spans until the completion of the Quebec Bridge in 1917. The Queensboro Bridge has an overall length of 3,724.5 feet. It originally carried two elevated railway lines, two trolley lines, six carriage lanes and two pedestrian walkways.
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Image Credit: Courtesy Flickr/reivax (CC BY-SA 2.0)Image Caption: Queensboro BridgeEra_date_from: 1909
2009
In fulfilling a contract for 25,000 U.S. Army rifles (Model 1841) and a like quantity for the British government, Robbins and Lawrence were the first to achieve interchangeability of parts on a fully practical level, contributing greatly to all subsequent mass production of machine products. This was made possible by the systematic improvement and refinement of existing standard and special-purpose machine tools, enabling them to perform with the close-limit precision essential for "repeatability" and thus interchangeability (see the American Precision Museum).
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Image Credit: Courtesy Flickr/Liz West (CC BY 2.0)Image Caption: American Precision MuseumEra_date_from: 1966
1987
Steam and the inexpensive electricity it could produce brought about dramatic technical growth in the United States. Developed during the last century, reliable and efficient steam engines were the forerunners of today's massive generating facilities. A rare survivor of the period, the Pratt facility is the oldest generating plant of its kind in the Northeast and embodies the typical features of engines in a row, open-front marble switchboard, and an observation balcony at street level.
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Image Credit: Public Domain (National Park Service)Image Caption: Pratt Institute Power PlantEra_date_from: 1887
1977
"Electricity produced here in the spring of 1891 was transmitted 2.6 miles over rugged and at times inaccessible terrain to provide power for operating the motor-driven mill at the Gold King Mine. This pioneering demonstration of the practical value of transmitting electrical power was a significant precedent in the United States for much larger plants at Niagara Falls (in 1895) and elsewhere. Electricity at Ames was generated at 3000 volts, 133 Hertz, single-phase AC, by a 100-hp Westinghouse alternator."
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Image Credit: Courtesy Wikipedia/Ray Wood (CC BY-SA 3.0) Image Caption: The Ames Hydroelectric Generating Plant, and behind it the trees of the Uncompahgre National ForestEra_date_from: 1891
1988
A bridge across the Hudson at or near Poughkeepsie was planned starting in the early 1870s to primarily carry coal from the coalfields of northeastern Pennsylvania to New England. At the time there were no bridges between Albany and New York Harbor. Horatio Allen, soon to be President of the ASCE, was its first Chief Engineer. He designed a multiple span suspension bridge. Later the American Bridge Company started construction on a five span bridge but went bankrupt before it completed the first pier foundations.
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Image Credit: Courtesy Flickr/bobistraveling (CC BY 2.0)Image Caption: Poughkeepsie-Highland BridgeEra_date_from: 1888
2009
These canals and locks are a part of the first extensive system of canal and river navigation works undertaken in the United States. The idea for the canal was proposed by George Washington, when, as an engineer, surveyor and military emissary for Virginia, he saw the need for a trade route west beyond the Allegheny Mountains. In order to do create this route, it was necessary to try to tame the Potomac River which was a wild, unruly stream which only the hardiest of rivermen ever attempted.
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Image Credit: Courtesy Flickr/Rudi Riet (CC BY-SA 2.0)Image Caption: Potowmack Canal and LocksEra_date_from: 1799
1970
The Portland Head Light was the first lighthouse to be constructed in Maine and the first one completed and put into service by the Federal government under the Lighthouse Act of 1789, which moved to place all lighthouses under federal control. While work had begun on the lighthouse in 1787 by the State of Massachusetts which, at that time, had jurisdiction over Maine, it was completed by the Federal government. When this lighthouse was being built, Portland was the sixth largest port in the country, the closest port to Europe and had significant trade with the Caribbean.
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Image Credit: Courtesy Flickr/Bernt Rostad (CC BY 2.0)Image Caption: Portland Head LightEra_date_from: 1787
2002
The Portland Observatory was built in 1807 by Captain Lemuel Moody to serve as a communication station for Portland Harbor. Portland Observatory was one of the earliest marine signal stations in the United States, and it is the last known to survive. The Observatory's location on Munjoy Hill gave it a clear view of vessels approaching Portland Harbor. The Observatory contributed to the prosperity of Portland Harbor as a vital center of maritime commerce during the "Golden Age of Sail."
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Image Credit: Courtesy Wikipedia/Econrad (CC BY-SA 3.0)Image Caption: Portland ObservatoryEra_date_from: 1807
2006
Innovations
In 1892, John H. Froehlich, Froehlich, IA, Mounted A Gasoline Fueled Internal Combustion Engine On A Traction Geared Frame And Used It To Power A Threshing Machine. A Change In Power Source Had Begun On North American Farms. In 1892, The Case Co., Racine, Wi, Built An Experimental Gas…
Read MoreIn 1926, Ives Hall, the original Agricultural Engineering Building at The Ohio State University, Columbus, was designated as ASAE's first engineering landmark in honor of department founder and 18th president of ASAE Fredrick Walter Ives. Frederick W. Ives 1884 - 1924.
Ives Hall was on…
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On this site in 1837 John Deere built the first successful self-scouring steel plow, thereby making a significant contribution to the development of American agriculture. Dedicated by American Society of Agricultural Engineers 1976
The first laser grade control was developed by agricultural engineers James Fouss and Norman Fausey of USDA's Agricultural Research Service at The Ohio State University in the mid-1960's. That system controlled the precise depth and grade of subsurface drains by regulating trenching and…
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Luebben Hay Baler - Historic Landmark of Agricultural Engineering. In 1892, Hugh Luebben from Sutton, Nebraska, with sons Melchior and Ummo built a mobile machine to produce round hay bales between two sets of rotating flat belts. They began manufacturing the baler in 1909 in Beatrice…
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Designated A Historic Landmark Of Agricultural Engineering The Massey-Harris No. 20 was the First Commercially- Successful Self-Propelled Combine Used to Harvest Small Grains Under a Wide Variety of Conditions, World-Wide. Engineered By Thomas Carroll, Chief Engineer, Aided by Robert…
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A Historic Landmark of Agricultural Engineering in 1834 Near the Village of Climax, Michigan, Hiram Moore and John Hascall Built and Put Into Practical Use the First Successful Grain Combined Harvester - Thresher Which was Patented June 28, 1836. This Achievement was a Significant…
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The First Official Nebraska Tractor Test was Started in this Building March 31, 1920. These Pioneer Tests Became Worldwide Standards and are Recognized by The American Society of Agricultural Engineers as an Historic Landmark of Agricultural Engineering. 1980
This machine is the world's first successful automatic pickup, self-tying hay baler. Its invention was a significant contribution to the development of American Agriculture. The baler was invented and hand-built in 1937 at Farmersville, Pa., a few miles from here. After testing and…
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The concept of once-over mechanical, as opposed to multiple-pick hand or experimental multiple-pick machine harvesting, represented a major break-through in the practice of producing vine fruit such as pickling cucumbers. In the 1950s the cost of hand harvesting was as high as 50% of the…
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In the mid 1930's, the USDA Soil Conservation Service (SCS) realized the importance of hydrologic processes on agricultural fields and watersheds and determining their impact on soil erosion, floods, water resources, and the agricultural economy. In response, the SCS Hydrologic Division…
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Since the beginning of irrigated agriculture, it has been important to measure flows of irrigation water. Accuracy of early water measurement methods often suffered because of trash or sediment in the water, or unusual flow conditions. Ralph L. Parshall saw this problem when he began…
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William J. Conroy Of Aylmer, Quebec, Received Patent No. 465,127 On The First Field Hay Chopper On 15 December, 1891. Its Sickle Cut The Crop, Which Was Elevated Directly Into A Cylindrical Curved-Bar Cutterhead. It Was Not Commercially Successful, But It Recognized The Need.
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Designated a Historic Landmark of Agricultural Engineering at Oakland Manor In 1876 Francis Morris Built Brick Silos in His Barn and Introduced the Practice of Making Corn Silage in the United States. His Further Experiments Developed the Use of Earthen Trenches and Thereby Significantly…
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Pole Frame Building Historic Landmark Of Agricultural Engineering - In the mid 1940's, "B G" Perkins of Doane Agricultural Service introduced a new pole-frame construction along the Missouri-Illinois border. This idea revolutionized the way barns were built. With pole-frame construction,…
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The Rain Bird horizontal action impact drive sprinkler head was invented in 1933 by Orton Englehardt, a citrus grower and native of Glendora. The design offered slow rotation and uniform watering, benefits long sought by local irrigators. Clement M. LaFetra, a friend of Englehardt, urged…
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The First Agricultural Tractor Roll-Over Protection Structure (Rops) In The USA Resulted From Research By Lloyd H. Lamouria, Ralph R. Parks And Coby Lorensen At The Agricultural Engineering Department Of The University Of California At Davis. It Was Designed And Successfully Tested In The…
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Early tractors were massive and expensive. Their steel lug wheels gave poor traction and a rough ride. Lugs were prohibited on many roads. 1926 Hoyle Pounds modified a Fordson tractor with zero pressure truck tires on special rims to improve performance on sandy soils in Winter…
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The Rumely Companies, which operated in La Porte, Indiana, from 1853 to 1931, produced a variety of equipment including threshers and steam engines, which helped to change the nature of American and world agriculture. The revolutionary OilPull Tractor, which was introduced in 1910,…
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