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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 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]
Thomas Crapper was born in Thorne, West Riding of Yorkshire, in 1836; the exact date is unknown, but he was baptised on 28 September 1836.His father, Charles, was a sailor.
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.
GE Oil & Gas acquires Vetco Gray for US$1.9 billion. [19] [20] 2007 GE Plastics is sold to SABIC for US$11.6 billion. [21] 2008 GE Oil & Gas acquires Hydril Pressure & Control for US$1.12 billion from Tenaris, who retains possession of Hydril Premium Connections. [22] [23] 2008 GE Co. acquires Vital Signs Inc. for US$860 million [24] 2009
[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 clapper on an English handbell is on a hinge and moves back and forth in a single direction, unlike a school bell in which the clapper swings freely in any direction. It also has a spring that holds the clapper away from the casting after the strike to allow the bell to ring freely.