Patent GB-190618057-A (GB)
Title: A New or Improved Method of and Means for Simultaneously Recording and Reproducing Movements and Sounds.
Inventor: HAINES ROBERT THORN
Filed: 1906-08-11
Granted: 1907-08-10
Abstract: 18,057. Haines, R. T., Pletts, J. St. V., and Lauste, E. A. Aug. 11. Kinematographs.-In a method of obtaining kinematograph and phonographic records for simultaneous reproduction, the movements of the objects as well as the sounds produced by them are simultaneously photographically recorded upon a single recording-film, the sounds being reproduced photoelectrically. In the recording-apparatus shown in Fig. 1, the sounds are received by a microphone b in circuit with the magnet B which controls the passage of light from the lamp j to the photographic film m. This film passes continuously past a slot in the casing opposite the lamp j, but is moved intermittently past the lens n as in an ordinary kinematographic camera, this being allowed by a slack part of the film at the point x. The movements of the objects and the impressions of the sound waves are recorded side by side on the same film. Figs. 3 and 4 show the means by which the magnet B controls the passage of light to the film m. The slotted diaphragm C<1> is carried by the spring-mounted armature of the magnet B in such a way that the slots in the diaphragm C' are moved more or less over the slots in a similar fixed diaphragm C according to the current flowing round the magnet B, and thus control the amount of light passing to the film m. In the reproducing-apparatus, the film m, Fig. 5, passes between a source of light b and a selenium cell r, arranged in circuit with a loud speaking telephone H. The pictures are simultaneously exhibited by the light p and lens t. A heat absorber ' s may be placed between the selenium cell and the film. Many modifications may be made both in the recording and the reproducing apparatus. (1) A source of light may have air supp ied to it by a pipe which communicates with the diaphragm of the magnet B, so that the pulsations of air transmitted to the lamp cause corresponding vibrations of the light. (2) The magnet B may cause a mirror to reflect a varying beam of light through a lens on to the film. (3) An oscillograph, or sensitive jets of air, gas, water, &c., or any other method of converting variations of current intensity into variations of light intensity may also be used. (4) Instead of using a strip film, a cylindrical film or a circular plate of transparent sensitive material may be used, and is caused to rotate so that a fresh surface is presented to the light at each revolution. The record may also be made on an opaque plate having a polished surface, reflected light being used in reproducing. (5) Instead of using a loud speaking telephone for reproducing, the electric vibrations in the circuit containing the selenium cell may effect changes in a gas, oil, or other flame, connected with a horn for amplifying the sounds. (6) Instead of collecting the sounds by the microphone b, Fig. 1, a number of conical or other chambers may be used having their outer ends closed by rubber diaphragms, and having tubes leading from the smaller ends to one larger tube which transmits the vibrations to the gas or other lamp as before described.