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Hammond Electric Bridge Table
The Hammond Electric Bridge Table was an electromechanical automatic card shuffling machine that dealt playing cards at random to four bridge players. The mechanism was built into a card table. The main concept of the machine was as a labor saving aid for bridge players in dealing out the hands. The invention was an offspring from the Hammond Clock Company as an additional product. It was a popular device when first introduced at the pre-Christmas season of 1932. That was short lived, however, and production lasted only a couple of years. Development The device has its origins with the Hammond Clock Company which was formed by Laurens Hammond in 1928 in Chicago, Illinois. By 1932, over one hundred clock companies had gone out of business due to the Great Depression The Great Depression (19291939) was an economic shock that impacted most countries across the world. It was a period of economic depression that became evident after a major fall in stock prices in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electromechanics
In engineering, electromechanics combines processes and procedures drawn from electrical engineering and mechanical engineering. Electromechanics focuses on the interaction of electrical and mechanical systems as a whole and how the two systems interact with each other. This process is especially prominent in systems such as those of DC or AC rotating electrical machines which can be designed and operated to generate power from a mechanical process (generator) or used to power a mechanical effect (motor). Electrical engineering in this context also encompasses electronics engineering. Electromechanical devices are ones which have both electrical and mechanical processes. Strictly speaking, a manually operated switch is an electromechanical component due to the mechanical movement causing an electrical output. Though this is true, the term is usually understood to refer to devices which involve an electrical signal to create mechanical movement, or vice versa mechanical movement ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Automatic Card Shuffling Machine
A shuffling machine is a machine for randomly shuffling packs of playing cards. Because standard shuffling techniques are seen as weak, and in order to avoid "inside jobs" where employees collaborate with gamblers by performing inadequate shuffles, many casinos employ automatic shuffling machines to shuffle the cards before dealing. These machines are also used to reduce repetitive motion stress injuries to a dealer. Shuffling machines have to be carefully designed, as they can generate biased shuffles otherwise: the most recent shuffling machines are computer-controlled. The randomness or otherwise of cards produced from automatic shuffling machines is the subject of considerable interest to both gamblers and casinos. Shuffling machines come in two main varieties: continuous shuffling machines (CSMs), which shuffle one or more packs continuously, and batch shufflers or automatic shuffling machines (ASMs), which shuffle an entire single pack in a single operation. Batch shuff ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contract Bridge
Contract bridge, or simply bridge, is a trick-taking card game using a standard 52-card deck. In its basic format, it is played by four players in two competing partnerships, with partners sitting opposite each other around a table. Millions of people play bridge worldwide in clubs, tournaments, online and with friends at home, making it one of the world's most popular card games, particularly among seniors. The World Bridge Federation (WBF) is the governing body for international competitive bridge, with numerous other bodies governing it at the regional level. The game consists of a number of , each progressing through four phases. The cards are dealt to the players; then the players ''call'' (or ''bid'') in an auction seeking to take the , specifying how many tricks the partnership receiving the contract (the declaring side) needs to take to receive points for the deal. During the auction, partners use their bids to also exchange information about their hands, including o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hammond Clock Company
The Hammond Clock Company of Chicago (Illinois) produced electric clocks between 1928 and 1941. It was one of the ventures of Laurens Hammond, the inventor of the famous Hammond organ. Invention of the Hammond clock motor As Stuyvesant Barry reports in his biography of Laurens Hammond, Hammond himself acknowledged that his invention of the clock that was to bear his name was inspired by the success of Henry Warren's Telechron clocks. Upon discovering the Telechron technology, Hammond designed a motor that was synchronous, like Warren's, that is to say, it rotated at a speed that was tied to the frequency of the current supplied by the power grid. In this way, any clock operated by such a motor would run with great precision as long as the operators of the power grid kept the current's frequency constant. This had become possible since the introduction of the Warren master clock, an innovation of which Hammond took full advantage with his own invention. Hammond's motor, however, dif ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hammond Card Table Mechanism
Hammond may refer to: People * Hammond Innes (1913–1998), English novelist * Hammond (surname) * Justice Hammond (other) Places Antarctica * Hammond Glacier, Antarctica Australia *Hammond, South Australia, a small settlement in South Australia ** Electoral district of Hammond, a state electoral district in South Australia Canada * Hammond River, a small river in New Brunswick *Hammond Parish, New Brunswick *Hammond, Ontario, Canada, now Clarence-Rockland, Ontario *Port Hammond, British Columbia, also known as Hammond or Hammond's Landing *Upper Hammonds Plains, Nova Scotia England *Stoke Hammond, a village in north Buckinghamshire, England United States *Hammond, Fresno, California *Hammond Castle, a castle located in Gloucester, Massachusetts *Hammond, Georgia, now Sandy Springs, Georgia * Hammond, Illinois *Hammond, Indiana, the largest U.S. city named Hammond ** Hammond Circus Train Wreck * Hammond, Kansas *Hammond, Louisiana *Hammond, Maine * Hammond, Minnesota ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Laurens Hammond
Laurens Hammond (January 11, 1895 – July 1, 1973), was an American engineer and inventor. His inventions include the Hammond organ, the Hammond clock, and the world's first polyphonic musical synthesizer, the Novachord. Youth Laurens Hammond was born in Evanston, Illinois, on January 11, 1895 to William Andrew and Idea Louise Strong Hammond. Laurens showed his great technical prowess from an early age. His father, William, took his own life in January 1897, ostensibly due to failure of the First National Bank of Illinois, which he had founded. Upon her husband's death, Idea, who was an artist, relocated to France with Laurens to further her studies, and the family spent the next eleven years in France and Germany. Early inventions When the family returned to Evanston in 1909, Laurens, then 14, was fluent in French and German. While in Europe, he had already designed a system for automatic transmission for automobiles. At his mother's suggestion, he submitted his des ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago, Illinois
(''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name = United States , subdivision_type1 = State , subdivision_type2 = Counties , subdivision_name1 = Illinois , subdivision_name2 = Cook and DuPage , established_title = Settled , established_date = , established_title2 = Incorporated (city) , established_date2 = , founder = Jean Baptiste Point du Sable , government_type = Mayor–council , governing_body = Chicago City Council , leader_title = Mayor , leader_name = Lori Lightfoot ( D) , leader_title1 = City Clerk , leader_name1 = Anna Valencia ( D) , unit_pref = Imperial , area_footnotes = , area_tot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Depression
The Great Depression (19291939) was an economic shock that impacted most countries across the world. It was a period of economic depression that became evident after a major fall in stock prices in the United States. The economic contagion began around September and led to the Wall Street stock market crash of October 24 (Black Thursday). It was the longest, deepest, and most widespread depression of the 20th century. Between 1929 and 1932, worldwide gross domestic product (GDP) fell by an estimated 15%. By comparison, worldwide GDP fell by less than 1% from 2008 to 2009 during the Great Recession. Some economies started to recover by the mid-1930s. However, in many countries, the negative effects of the Great Depression lasted until the beginning of World War II. Devastating effects were seen in both rich and poor countries with falling personal income, prices, tax revenues, and profits. International trade fell by more than 50%, unemployment in the U.S. rose to 23% and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marshall Field's
Marshall Field & Company (commonly known as Marshall Field's) was an upscale department store in Chicago, Illinois. Founded in the 19th century, it grew to become a large chain before Macy's, Inc acquired it in 2005. Its eponymous founder, Marshall Field, was a pioneering retail magnate. The company's flagship Marshall Field and Company Building on State Street in the Chicago Loop is a National Landmark. It was officially branded ''Macy's on State Street'' in 2006, when it became one of Macy's flagship stores. History Early years Marshall Field & Company traces its antecedents to a dry goods store opened at 137 Lake StreetPDX History of Marshall Field's Retrieved August 20, 2006. in , |
Century Of Progress
A Century of Progress International Exposition, also known as the Chicago World's Fair, was a world's fair held in the city of Chicago, Illinois, United States, from 1933 to 1934. The fair, registered under the Bureau International des Expositions (BIE), celebrated the city's centennial. The theme of the fair was technological innovation, and its motto was "Science Finds, Industry Applies, Man Adapts", trumpeting the message that science and American life were wedded. Its architectural symbol was the Sky Ride, a transporter bridge perpendicular to the shore on which one could ride from one side of the fair to the other. One description of the fair noted that the world, "then still mired in the malaise of the Great Depression, could glimpse a happier not-too-distant future, all driven by innovation in science and technology." Fair visitors saw the latest wonders in rail travel, automobiles, architecture and even cigarette-smoking robots. The exposition "emphasized technology an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Patent 1,998,672
A patent is a type of intellectual property that gives its owner the legal right to exclude others from making, using, or selling an invention for a limited period of time in exchange for publishing an enabling disclosure of the invention."A patent is not the grant of a right to make or use or sell. It does not, directly or indirectly, imply any such right. It grants only the right to exclude others. The supposition that a right to make is created by the patent grant is obviously inconsistent with the established distinctions between generic and specific patents, and with the well-known fact that a very considerable portion of the patents granted are in a field covered by a former relatively generic or basic patent, are tributary to such earlier patent, and cannot be practiced unless by license thereunder." – ''Herman v. Youngstown Car Mfg. Co.'', 191 F. 579, 584–85, 112 CCA 185 (6th Cir. 1911) In most countries, patent rights fall under private law and the patent holder mus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
