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Hooven-Owens-Rentschler
The firm of Hooven, Owens, Rentschler, and Company manufactured steam and diesel engines in Hamilton, Ohio. Because the firm was frequently known by its initials, H.O.R., the ''Hooven'' is sometimes incorrectly rendered as ''Hoover'', and the ''Owens'' may be mistaken for ''Owen''. History Origin The firm was the successor to the firm of Owens, Ebert & Dyer (founded in 1845 by Job E. Owens) which went into receivership in 1876. In 1882, George A. Rentschler, J. C. Hooven, Henry C. Sohn, George H. Helvey, and James E. Campbell merged the firm with the iron works of Sohn and Rentschler, and adopted the name Hooven, Owens, Rentschler Co. In 1883 the firm began the manufacture of Corliss steam engines, producing a total of 700 such engines by 1901. 20th century, first part By World War I, the Hooven-Owens-Rentschler Company operated the largest exclusive Corliss Engine plant in the country, employing nearly 800 men. In 1928 the company merged with the Niles Tool Works to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Pompano (SS-181)
USS ''Pompano'' (SS-181), a United States ''Porpoise''-class submarine, was the second ship of the United States Navy to be named for the pompano. Her keel was laid down on 14 January 1936 by the Mare Island Navy Yard in California. She was launched on 11 March 1937, sponsored by Mrs. Isaac I. Yates, wife of Captain Isaac I. Yates, manager of Mare Island Navy Yard. The boat was commissioned on 12 June 1937. Engine problems Six boats were built in this group, with three different diesel engine designs from different makers. ''Pompano'' was fitted with H.O.R. (Hooven-Owens-Rentschler) 8-cylinder double-acting engines that were a license-built version of the MAN SE, MAN auxiliary engines of the cruiser Leipzig-class cruiser, ''Leipzig''. Owing to the limited space available within the submarines, either opposed piston engine, opposed-piston or, in this case, double-acting cylinder, double-acting engines were favoured for being more compact. ''Pompano''s engines were a comple ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lima Locomotive Works
Lima Locomotive Works was an American firm that manufactured railroad locomotives from the 1870s through the 1950s. The company took the most distinctive part of its name from its main shop's location in Lima, Ohio. The shops were located between the Erie Railroad main line, the Baltimore & Ohio's Cincinnati-Toledo main line and the Nickel Plate Road main line and shops. The company is best known for producing the Shay geared logging-steam locomotive, developed by Ephraim Shay, and for William E. Woodard's "Super Power" advanced steam locomotive concept – exemplified by the prototype 2-8-4 Berkshire, Lima demonstrator A-1. In World War II the Lima plant produced the M4A1 version of the M4 Sherman tank. History In 1878 James Alley contracted the Lima Machine Works to build a steam locomotive that Ephraim Shay had designed. In April 1880, Lima rebuilt Ephraim Shay's original design, using vertically side-mounted pistons mounted on the right, connected to a drive l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
German Cruiser Leipzig
''Leipzig'' was the lead ship of her class of light cruisers built by the German navy. She had one sister ship, ''Nürnberg''. ''Leipzig'' was laid down in April 1928, was launched in October 1929, and was commissioned into the ''Reichsmarine'' in October 1931. Armed with a main battery of nine guns in three triple turrets, ''Leipzig'' had a top speed of . ''Leipzig'' participated in non-intervention patrols during the Spanish Civil War. In the first year of World War II, she performed escort duties for warships in the Baltic and North seas. While on one of these operations in December 1939, the ship was torpedoed by a British submarine and badly damaged. Repairs were completed by late 1940, when she returned to service as a training ship. She provided gunfire support to the advancing ''Wehrmacht'' troops as they invaded the Soviet Union in 1941. In October 1944, ''Leipzig'' collided with the heavy cruiser ''Prinz Eugen''; the damage was so severe that the navy decided c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Double-acting Cylinder
In mechanical engineering, the cylinders of reciprocating engines are often classified by whether they are single- or double-acting, depending on how the working fluid acts on the piston. Single-acting A single-acting cylinder in a reciprocating engine is a cylinder in which the working fluid acts on one side of the piston only. A single-acting cylinder relies on the load, springs, other cylinders, or the momentum of a flywheel, to push the piston back in the other direction. Single-acting cylinders are found in most kinds of reciprocating engine. They are almost universal in internal combustion engines (e.g. petrol and diesel engines) and are also used in many external combustion engines such as Stirling engine A Stirling engine is a heat engine that is operated by the cyclic compression and expansion of air or other gas (the ''working fluid'') between different temperatures, resulting in a net conversion of heat energy to mechanical work. More specif ...s and some steam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Steam Engine
A steam engine is a heat engine that performs mechanical work using steam as its working fluid. The steam engine uses the force produced by steam pressure to push a piston back and forth inside a cylinder. This pushing force can be transformed, by a connecting rod and crank, into rotational force for work. The term "steam engine" is generally applied only to reciprocating engines as just described, not to the steam turbine. Steam engines are external combustion engines, where the working fluid is separated from the combustion products. The ideal thermodynamic cycle used to analyze this process is called the Rankine cycle. In general usage, the term ''steam engine'' can refer to either complete steam plants (including boilers etc.), such as railway steam locomotives and portable engines, or may refer to the piston or turbine machinery alone, as in the beam engine and stationary steam engine. Although steam-driven devices were known as early as the aeolipile in the f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electro-Motive Diesel
Progress Rail Locomotives, doing business as Electro-Motive Diesel (EMD), is an American manufacturer of diesel-electric locomotives, locomotive products and diesel engines for the rail industry. The company is owned by Caterpillar through its subsidiary Progress Rail. Electro-Motive Diesel traces its roots to the Electro-Motive Engineering Corporation, a designer and marketer of gasoline-electric self-propelled rail cars founded in 1922 and later renamed Electro-Motive Company (EMC). In 1930, General Motors purchased Electro-Motive Company and the Winton Engine Co., and in 1941 it expanded EMC's realm to locomotive engine manufacturing as Electro-Motive Division (EMD). In 2005, GM sold EMD to Greenbriar Equity Group and Berkshire Partners, which formed Electro-Motive Diesel to facilitate the purchase. In 2010, Progress Rail completed the purchase of Electro-Motive Diesel from Greenbriar, Berkshire, and others. EMD's headquarters, engineering facilities and parts manufacturing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Gurnard (SS-254)
, a ''Gato''-class submarine, was the first ship of the United States Navy to be named for the gurnard. Construction and commissioning ''Gurnard''′s keel was laid down by the Electric Boat Company at Groton, Connecticut, on 2 September 1941. She was launched on 1 June 1942, sponsored by Miss Suzanne Slingluff, and commissioned on 18 September 1942. Atlantic Patrol Following shakedown from New London, Connecticut, ''Gurnard'' sailed for Rosneath, Scotland, 2 November 1942 and reached that port 13 days later. Her first war patrol, 28 November to 27 December 1942, brought her to the Bay of Biscay where she lay off the Spanish coast awaiting German blockade runners bound for Spanish ports. The patrol was uneventful; no enemy ships were sighted and subsequently ''Gurnard'' returned to New London 9 February 1943 for repairs and alterations. Pacific Patrols Second, third, and fourth war patrols, May 1943 – January 1944 After reaching Pearl Harbor 26 May, the submari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Operation Torch
Operation Torch (8 November 1942 – Run for Tunis, 16 November 1942) was an Allies of World War II, Allied invasion of French North Africa during the Second World War. Torch was a compromise operation that met the British objective of securing victory in North Africa while allowing American armed forces the opportunity to engage in the fight against Nazi Germany on a limited scale. It was the first mass involvement of US troops in the Mediterranean and Middle East theatre of World War II, European–North African Theatre, and saw the first major airborne assault carried out by the United States. While the French colonies were formally aligned with Germany via Vichy France, the loyalties of the population were mixed. Reports indicated that they might support the Allies. American General Dwight D. Eisenhower, supreme commander of the Allied forces in Mediterranean Theater of Operations, planned a three-pronged attack on Casablanca (Western), Oran (Center) and Algiers (Easter ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Motors
The General Motors Company (GM) is an American Multinational corporation, multinational Automotive industry, automotive manufacturing company headquartered in Detroit, Michigan, United States. It is the largest automaker in the United States and was the largest in the world for 77 years before losing the top spot to Toyota in 2008. General Motors operates manufacturing plants in eight countries. Its four core automobile brands are Chevrolet, Buick, GMC (automobile), GMC, and Cadillac. It also holds interests in Chinese brands Wuling Motors and Baojun as well as DMAX (engines), DMAX via joint ventures. Additionally, GM also owns the BrightDrop delivery vehicle manufacturer, GM Defense, a namesake Defense vehicles division which produces military vehicles for the United States government and military; the vehicle safety, security, and information services provider OnStar; the auto parts company ACDelco, a GM Financial, namesake financial lending service; and majority ownership in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomas M
Thomas may refer to: People * List of people with given name Thomas * Thomas (name) * Thomas (surname) * Saint Thomas (other) * Thomas Aquinas (1225–1274) Italian Dominican friar, philosopher, and Doctor of the Church * Thomas the Apostle * Thomas (bishop of the East Angles) (fl. 640s–650s), medieval Bishop of the East Angles * Thomas (Archdeacon of Barnstaple) (fl. 1203), Archdeacon of Barnstaple * Thomas, Count of Perche (1195–1217), Count of Perche * Thomas (bishop of Finland) (1248), first known Bishop of Finland * Thomas, Earl of Mar (1330–1377), 14th-century Earl, Aberdeen, Scotland Geography Places in the United States * Thomas, Illinois * Thomas, Indiana * Thomas, Oklahoma * Thomas, Oregon * Thomas, South Dakota * Thomas, Virginia * Thomas, Washington * Thomas, West Virginia * Thomas County (other) * Thomas Township (other) Elsewhere * Thomas Glacier (Greenland) Arts, entertainment, and media * ''Thomas'' (Burton novel) 1969 novel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fairbanks Morse 38 8-1/8 Diesel Engine
The Fairbanks-Morse 38 8-1/8 is a diesel engine of the two-stroke, opposed-piston type. It was developed in the 1930s, and is similar in arrangement to a contemporary series of German Bombers aircraft diesels. The engine was used extensively in US diesel electric submarines of the 1940s and 1950s, as backup power on most US nuclear submarines, as well as in other marine applications, stationary power generation, and briefly, locomotives. A slightly modified version, the 38ND 8-1/8, continues in service on ''Los Angeles''-, ''Seawolf''-, and ''Ohio''-class nuclear submarines of the US Navy. The 38 8-1/8 has been in continuous production since its development in 1938, and is currently manufactured by a descendant of Fairbanks-Morse, FMDefense, in Beloit, Wisconsin. Specifications The 38 8-1/8 engines are inline diesel engines, with combustion occurring between two opposed pistons within a single cylinder liner. The engine has a bore of 8-1/8 inches (206.4 mm), a stroke of 10 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USS Jack (SS-259)
USS ''Jack'' (SS-259), a submarine, was the first ship of the United States Navy to be named for the jack (any of various fishes—young pike, green pike or pickerel, or large California rockfish). Construction and commissioning ''Jack''′s keel was laid down by the Electric Boat Company at Groton, Connecticut, on 2 February 1942. She was launched on 16 October 1942, sponsored by Mrs. Frances Seely, and commissioned at Naval Submarine Base New London in New London, Connecticut, on 6 January 1943, Commander Thomas. M. "Tommy" Dykers in command. Service history First and second war patrols, June – October 1943 ''Jack'' underwent shakedown training along the New England coast, sailing from New London 26 April 1943 for service in the Pacific. Reaching Pearl Harbor 21 May, the submarine took on supplies and departed on her first offensive war patrol 5 June 1943. Taking part in the submarine offensive against Japan, she patrolled off Honshū. ''Jack'' came upon a five-ship ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
