The Talking Machine Patent Archive

Patents you could hear

Phonograph

Patent drawing of a tin-foil cylinder phonograph showing two geared cylinders, a central diaphragm with dual mouth-pieces and tubes, and a forked lever with recording points, alongside a side elevation of the full mechanism on its base.IMPROVEMENT IN PHONOGRAPHSA. Wilford Hall · September 23, 1879Patent drawing of a boxed phonograph recording apparatus showing a diaphragm and needle above a roller, flanked by two heating and cooling chambers with guide rollers, an oil lamp for heat, and gears and cranks (H, K, I) driving the recording strip through the mechanism.METHOD OF RECORDING SPEECH.George H. Herrington · November 13, 1888Patent drawing of a cylinder phonograph showing the main frame with grooved record cylinder, a diaphragm and pivoted style assembly on a sliding carriage, a large curved amplifying horn rising above, and several detail cross-sections of the reproducer mechanism below.PHONOGRAPH.John H. White · November 11, 1890Patent drawing of a cylinder phonograph mechanism showing the recording cylinder, diaphragm arm, lifting-bar with cam-disk, and a pivoted lever labeled 'prime mover' used to start the motor and raise or lower the stylus.PHONOGRAPH.Henry T. Holtz · November 24, 1891Patent drawing showing a boxed phonograph apparatus with a diaphragm and needle above a central roller, flanked by heating and cooling chambers labeled E and F containing a recording strip guided by pulleys and rollers, with gears and a motor below, plus a separate figure of a cylindrical phonograph with a lamp for heating the recording sheet.PHONOGRAPH.George H. Herrington · December 1, 1891Patent drawing of a conical phonograph horn with an internal cone-shaped deflector, concave annular and spherical reflectors, a diaphragm, and an electrically heated recording stylus mounted on springs and insulating mica strips.APPARATUS FOR RECORDING SPEECH OR OTHER SOUNDSWilliam Bruening · November 15, 1892Two vertical sectional diagrams of a phonograph recording apparatus showing a corrugated horn, a cone-shaped diaphragm with a stylus, a dome-shaped sound reflector, and a small lamp used to heat the stylus, with labeled parts including horn (H), diaphragm (D'), cone (C), style (S), and support stem (M).APPARATUS FOR RECORDING SPEECH OR OTHER SOUNDSWilliam Bruening · November 22, 1892Patent drawing of a phonograph mechanism showing a horn-shaped diaphragm chamber connected via U-shaped amplificatory levers and a rocking bar to interchangeable recording and reproducing styles, with detailed close-ups of the lever linkage and style shanks.PHONOGRAPHStewart Dixon McKelvey · January 1, 1895Technical patent drawing showing a phonograph diaphragm assembly in cross-section and face view, with a stylus bar D extending downward through a yielding spring plate E to a needle point d', alongside detail views of grooved supporting plates labeled Fig. 5, 6, and 7.SOUND RECORDING AND REPRODUCING MACHINEAlfred Corning Clark and Eldridge R. Johnson · May 9, 1899Patent drawing of a disc phonograph top plan view showing the tone arm, horn, sound box with stylus riding on a spiral-grooved record, and an automatic stop mechanism with a pivoted arm, rod, and brake linkage mounted near the platen edge, with additional detail views of the brake components below.AUTOMATIC STOP FOR PHONOGRAPHS.Francis W. D'Olier · April 13, 1915