The talking machine world (Jan-Dec 1915)

72 THE TALKING MACHINE WORLD. LATEST PATENTS RELATING TO TALKING MACHINES— (Continued from page 71). for driving the gramophone is thereby started and stopped. In one way of carrying out the invention the current is led by a brush carried by a bracket on a stationary part of the gramophone to a segment of conducting material secured to but insulated from the vertical part of the tapered arm, the segment being so arranged that the circuit is made when the arm is placed in the starting position, and broken when the tune or reproduction is finished. In order to insure a complete break in the circuit the needle is guided to the center of the record at the end of the reproduction by a groove or a raised line. To minimize the sparking between the segment and brush which causes a roughness which interferes with the swinging of the arm, a relay is employed operated by a battery of small E. M. F. to make and break the current which operates the motor, or in place of a relay a condenser is connected to the segment and brush. In the drawings which illustrate the invention Figure 1 is a diagrammatic view showing the conducting segment on the tapered arm of a gramophone, the circuit being broken. Fig. 2 is a diagram showing the electrical connections. Fig. 3 is a diagram showing an alternative method for minimizing sparking when the circuit is broken. Reproducer Support for Graphophones. — George C. White, Baltimore, Md. Patent No. 1,160,803. This invention relates to an improved means for sustaining reproducers of graphophones. The object of the invention is to provide an improved means for sustaining reproducers so as to enable the same to have a freedom of movement not heretofore permitted and to also provide a reproducer support that will enable the reproducer to have a playing position substantially tangential with respect to the grooves in the record disc, or substantially crosswise of the said disc grooves. At the present time two distinct forms of record discs are employed and commercially known as Victor or Columbia records and Edison records. In the case of the Victor and Columbia records the side wall of the record disc groove is provided with irregularities with which the reproducer needle coacts so as to reproduce the sound. In the case of the Edison records the grooves of the disc are provided with irregularities in the bottom of the groove. In the Victor and Columbia discs the grooves of which have an irregular side wall, the reproducer in practice is sustained vertically so that its diaphragm will have position substantially tangential with respect to the grooves, whereas in the case of the Edison discs with the grooves of irregular bottom, the reproducer in practice is sustained in a horizontal position. The respective positions of the reproducers with respect to the two forms of grooves as above noted are necessary. This invention, therefore, has for its object to provide a reproducer support of such construction that the reproducer may be carried so as to operate with disc records of either of the types referred to. With these and other objects in view, the invention is illustrated in the accompanying drawing, wherein Figure 1 shows in top plan a conventional reproducer arm of the Victor type to which the improved device is attached, the reproducer being in position to operate with, either a Victor or Co lumbia disc record. Fig. 2 illustrates a side elevation of the improved attachment with the reproducer detached. Fig. 3 shows a rear elevation of the same. Fig. 4 illustrates a cross-sectional detail on the line 4 — 4 of Fig. 3. Fig. 5 shows a top plan of the attachment carrying the reproducer and in position to co-operate with a disc record of the Edison type. Fig. 6 shows the same in side elevation with the reproducer removed. Fig. 7 illustrates in side elevation a detail of the universal ball part of the joint on which the reproducer is to be attached, and Fig. 8 shows a vertical sectional detail through the attachment, the section being taken on the line 8 — 8 of Fig. 2. Talking Machine. — Theodor Isaac, Chicago, 111., assignor of two-thirds to Louis Schram and Jacob Rothschild. Patent No. 1,160,998. This invention relates to talking machines, and more particularly to the tone arm and sound-box thereof, the object of the invention being to provide a construction such that the sound-box may be quickly and easily adjusted to play records either of the Berliner type, in which the groove has lateral vibrations, or of the Edison type, in which the groove has vertical vibrations — that is, variations in depth. As a result of this invention the machine may be quickly adjusted to play records differing as to type of groove and records varying as to feed — records such as those commercially known as Victor and Columbia records feeding from the circumference of the disc toward the center, and others such as the Pathe Freres feeding from the center toward the circumference. Another object of the invention is to provide a needle holder and a jewel holder on the sound-box so constructed that when the needle is in place it will hold the jewel up out of contact with the record, and when the needle is removed the jewel may be lowered into contact with the record. Figure 1 is a longitudinal section of a tone arm and soundnbox employing the invention. The parts are adjusted for the playing of an Edison type disc record. Fig. 2 is an end view looking toward the right in Fig. 1. Fig. 3 is a side elevation of the sound-box and adjacent port'on of the tone arm showing' the parts adjusted to play a Berliner type record. Fig. 4 is a view looking toward the right in Fig. 3. Fig. 5 is a sectional view of the tone arm taken on the line 5 — 5, Fig. 1. Fig. 6 shows in perspective the interfitting portions of the tone arm. •Cabinet Sound-Reproducing Machine. — Henry C. Miller, Waterford, N. Y., assignor to the Victor vide means, inclosed within a sound-chamber, to amplify and improve the reproduced sound. A further object of the invention is to provide improved means for supporting the amplifying horn, to permit the sound-box to be moved in any convenient direction. In the drawings Figure 1 is a front elevation. Fig. 2 is a transverse section. Fig. 3 is a detailed view showing the improved mounting employed with a different form of amplifier. Machine for Recording and Reproducing Sound. — John H. P. Haines, New York. Patent No. 1,158,917. This invention relates to sound-reproducing apparatus of any sort where a record medium is continuously rotated and a sound-recording or reproducing device is displaced gradually over the surface of the record medium. A spring or other motor has been ordinarily employed for rotating the record medium, and displacing the sound-recording or reproducing device. ELECTRIC SIGNS_AS TRADE HELPS. Some Specialties of C. Bruno & Son, Inc., That Are Making a Wide Appeal. . There is considerable activity in electrical circles tending to the sale of things electrical and the more Bruno Electric Sign. universal use of electricity. In the talking machine field there is evidence that the phonograph wit.i electric motor is becoming more popular all the while. Electric signs for the sale of talking machines are likewise being used more and more by dealers who are alive to the fact that the eyes of the passers-by are quickly attracted to the window display, which oftentimes leads to more sales. C. Bruno & Sons, Inc., 353 Fourth avenue, New YOU WILL IdKE NUMBER 17701 ONE OF THOSE Wonderfully Fascinating feWAiiAfl1 RECORD§ COME IN AND HEAR IT Talking Machine Co., Camden, N. J. Patent No. 1,159,978. This invention relates to improvements in cabinet sound-reproducing machines. The object is to pro Bruno Electric Sign. York, offer two electric signs at the low price of $5, with low cost of operating. These are lOV* by 14% inches, about the right size to be attractive and yet unobtrusive. Charles F. Bruno, treasurer, reports a great desire on the part of dealers to secure these signs, particularly because these are what are termed "duplex signs" — they show one ad when unlighted, and when the light goes on another advertisement appears.