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The Clapper is a sound-activated electrical switch, [1] sold since 1984 by San Francisco, California based Joseph Enterprises, Inc. Joseph Pedott marketed the clapper with the slogan "Clap On! Clap Off! The Clapper!". [2] The Clapper plugs into a U.S.-type electrical outlet, and allows control of up to two devices plugged into the Clapper. [3]
In 1923, Clapper was transferred to Washington, D.C., to report on politics there. Six years later, he was made the manager of UP's Washington operation. [9] Clapper's success resulted to a large extent from "his objective writing style and his ability to explain the politics and policies of Washington for the average reader."
The North American Guild of Change Ringers (NAGCR) was founded in 1972 after the hanging of a ring of bells in the Washington National Cathedral in Washington, D.C., United States, in 1964. The NAGCR has now grown and expanded to 52 bell towers across the United States (44 towers) and Canada (8 towers) as well as one mini-ring and 9 hand-bell ...
Reporter and Scripps Howard columnist Raymond Clapper died in 1944 during World War II while covering the U.S. invasion of the Marshall Islands.Following his death, the Raymond Clapper Memorial Association [a] was incorporated in Washington, D.C. "to perpetuate the memory of Clapper" [4] through the Raymond Clapper Memorial Award.
The clapper is a rigid steel or wrought iron bar with a large ball to strike the bell. The thickest part of the mouth of bell is called the soundbow and it is against this that the ball strikes. Beyond the ball is a flight, which controls the speed of the clapper. In very small bells this can be nearly as long as the rest of the clapper.
The Clapper, whose slogan is "Clap On! Clap Off!", was first sold to the public on September 1, 1985. A trademark was filed on the brand name "Clapper" with the U.S. Patent and Trademark Office on July 9, 1986. [4] A design patent was applied for on November 13, 1985, which was issued as D299127 on December 27, 1988. [5]
[29] [30] The clapper or tongue is manufactured in a similar process as the bell. Special care is given to cast the clapper at the proper weight, as a clapper that is too light will not bring out the true tones of the bell and a heavy clapper might cause the bell to crack. [15]
The modern carillon was invented in 1644 when Jacob van Eyck and the Hemony brothers cast the first tuned carillon. The instrument experienced a peak until the late-18th century, a decline during the French Revolution, a revival in the late 19th century, a second decline during the First and Second World Wars, and a second revival thereafter.