Berliner Gramophone formulations remained the standard disc record material until the first vinyl records – initially made only for radio use and other special applications – were introduced in the 1930s. Beginning in 1896, Berliner's gramophones were made by Philadelphia-based machinist Eldridge Johnson, who added a spring motor to drive the previously hand-rotated turntable. Berliner also opened an office in New York City, staffed by Frank Seaman and O. D. LaDow and organized as the National Gramophone Company. Master recordings were made onto zinc plates, which were then electroplated and a negative-image "mother" made from them to stamp discs. A major reversal
Gramophone Company Gramophone Company The Gramophone Company, based in the United Kingdom and founded on behalf of Emil Berliner, was one of the early recording companies, the parent organisation for the "His Master's Voice (HMV)" label, and the European affiliate of the American Victor Talking Machine Company. Although the company merged with the Columbia Graphophone Company in 1931 to form Electric and Musical Industries Limited (EMI), its name "The Gramophone Company Limited" continued in the UK into the 1970s. The Gramophone Company was founded in 1898 by William Barry Owen and Trevor Williams in London, England. Owen was acting as agent for