Clapperboard
A clapperboard (also known by various other names including dumb slate) is a device used in filmmaking and video production to assist in synchronizing of picture and sound, and to designate and mark the various scenes and takes as they are filmed and audio-recorded. It is operated by the clapper loader. When sound and picture are out of synchronization, there is a lip flap occurring. History In the silent era the principal requirement of film stock identification during a day's shoot was the slate. The clapper as two sticks hinged together was invented by F. W. Thring (father of actor Frank Thring), who later became head of Efftee Studios in Melbourne, Australia. The clapboard with both the sticks and slate together was a refinement of Leon M. Leon (1903–1998) a pioneer sound engineer. Description The clapperboard combines a chalkboard slate or acrylic board with a set of clapper sticks across the top. The slate displays the name of the production, the scene and "t ...
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Frank Thring
Francis William Thring (11 May 1926 – 29 December 1994) was an Australian character actor in radio, stage, television and film; as well as a theatre director. His early career started in London in theatre productions, before he starred in Hollywood film, where he became best known for roles in ''Ben-Hur'' in 1959 and ''King of Kings'' in 1961. He was known for always wearing black and styling his home in black decor. Early life Thring was born in Melbourne. Although sometimes referred to as Frank Thring Jr., he was actually Francis William Thring (or William Francis Thring) IV. His forbears were Francis William Thring (1812–1887), Francis William Thring (known as William Thring) (1858–1920); William Frank Thring, known as Francis William Thring or F. W. Thring, (