The talking machine world (July-Dec 1918)

116 THE TALKING MACHINE WORLD December 15, 1918 LATEST PATENTS RELATING TO TALKING MACHINES AND RECORDS— (Continued from page 115) single operation. By means of a matrix formed according to the invention, a label embodying the finest design may be satisfactorily impressed into the record tablet. In order that the invention may be more clearly understood, reference is hereby made to the accompanying drawings in which Figures 1 to 4 inclusive are cross-sectional views illustrating diagrammatically various steps performed in carrying out the invention. Fig. 5 is a central vertical sectional view of a sound record embodying the invention; and Fig. 6 is a face view of the same. Talking Machine. — Andrew Haug, New York. Patent No. 1,281,565. This invention relates generally to talking machines and has particular reference to the construction of sound boxes for use in connection with such machines. The primary object of the invention is to obtain better tone quality of the reproduced sound, by constructing the sound box in a manner to give it freer action and greater sensitiveness, thereby rendering it more fully responsive, particularly to the finer vibrations of the record, which are ordinarily damped out and lost in the use of sound boxes now on the market, as a result of frictional resistance and pressure on the moving parts thereof. It has been found by experiment and test that greatly improved results are obtained in tone quality, when the diaphragm and stylus arm of the sound box are operatively connected in such relation that normally or when the sound box is not in use, no pull or pressure is exerted by the stylus arm on the diaphragm and the latter, excepting its usual circumferential mounting, is entirely free of tension. A second important feature of the invention consists in mounting the stylus arm so that it will be firmly held against lost motion or rattling and at the same time, free to vibrate with the least possible amount of friction. In connection with the peculiar mounting of the stylus arm, an additional and even more important featuft, of the invention consists in the provision of means for varying the pressure between the pivotal centers on which the stylus arm turns, to "tune" the sound box. That is to say, by increasing the pressure, the pitch of the box is raised and on reducing the pressure, the pitch is lowered. The important resulting advantages will be apparent. Figure 1 is a face view of the sound box. Fig. 2 is a sectional view taken horizontally through the pivotal centers on which the stylus arm vibrates. Fig. 3 is a similar view of a slightly modified form, and Fig. 4 is a detail view of the spring disc shown in Fig. 2. Amplifier for Talking Machines. — Joseph Wolff, Brooklyn, N. Y., assignor to the Sonora Phonograph Co., New York. Patent No. 1,283,007. This invention relates to a sound amplifier for talking machines, and more particularly to such type of talking machines in which the amplifier is concealed within the cabinet containing the operative parts of the mechanism. The object of the invention is to produce an amplifier, by means of which the purity and sweetness of the reproduced sound will be increased, and the reproduced sound will be a true reproduction of the sound as recorded. Another object of the invention is to provide improvements in a sound amplifying device for recording or reproducing sound, by means of which the quality and naturalness of the sounds are recorded or reproduced with greater faithfulness and a more true reproduction of the original. Figure 1 is a rear elevation of a wooden horn provided with the invention; Fig. 2 is a side elevation of the same; Fig. 3 is a side elevation showing a modification; Figs. 4 and 5 are views similar to Figs. 1 and 2, but showing a further modification; Figs. 6 and 7 are similar views of a still further modification; Fig. 8 is a fragmentary rear elevation showing a still further modification. Sound-Reproducing Machine.— Hobart C. Niblack, Rochester, N. Y., assignor to Emanuel L. Miller, Cincinnati, O. Patent No. 1,282,916. This invention relates to improvements in sound reproducing machines, with more particular reference to disc or flat record graphophones, and it has for its primary purpose to provide a novel construction and arrangement of parts for automatically effecting one or more repetitions of a record, and also for stopping movement of the record at the end of a plurality of complete operations. Figure 1 is a plan view, showing the application of the invention to a flat record sound reproducing machine, with parts broken away, the sound box appearing at the starting point on the record; Fig. 2 is a similar view, showing the position of the parts when the sound box is at the end of its movement on the record, and about to be lifted and carried back to its starting point; Fig. 3 is a side elevation of the repeating mechanism, and Fig. 4 is a vertical sectional view with parts in elevation. Phonograph Reproducer. — Archie E. Parnell, Chicago, 111., assignor to Frank W. Williams, same place. Patent No. 1,284,136. This invention relates to an improved form of a phonograph reproducer wherein the inner end of the stylus arm is adapted to be securely fastened to the exact center of the diaphragm, by means of a resilient member secured between the diaphragm and the reproducer casing. It is an object of this invention to produce a phonograph reproducer in which the diaphragm and the stylus arm are formed to insure exact centering of the inner end of the stylus arm with respect to the diaphragm. It is also an object to construct a phonograph sound box having a grooved gasket member adapted to hold a centrally apertured diaphragm exactly in the center of the sound box to permit the inner hooked end of a stylus arm to be securely fastened directly in the center of said diaphragm. It is furthermore an object to construct a phonograph reproducer wherein the diaphragm is held exactly in the center of the reproducer to permit the inner end of a stylus arm to be secured exactly in the center of the diaphragm. It is an important object of the invention to produce a phonograph reproducer of simple and effective construction wherein the stylus arm is insured of being attached to the center of the diaphragm. Figure 1 is a central vertical section taken through a phonograph reproducer embodying the principles of the invention, with parts shown in elevation. Fig. 2 is a bottom plan view thereof. Fig. 3 is an enlarged detail section taken on line 3 — 3 of Fig. 2, with parts broken away. Fig. 4 is a central vertical section of the reproducer diaphragm and its supporting and centering means. Fig. 5 is an enlarged fragmentary vertical section taken through the central portion of the diaphragm showing the inner end of the stylus arm partly engaged in the central aperture of said diaphragm. Fig. 6 is a similar section showing the next step in the operation. Fig. 7 is a similar view showing the stylus arm secured to the center of the diaphragm. Phonograph— Newman H. Holland, West Orange, N. J., assignor to the New Jersey Patent Corp., same place. Patent No. 1,283,771. This invention relates to phonographs and more particularly to such phonographs as are suitable both for recording and for reproducing sound waves. The principal object of the invention is to provide an improved device of this character in which a single sound box is provided with both a recording stylus and a reproducing stylus, the styli being preferably so mounted that the reproducer stylus is movable laterally when in operative position to permit the same to readily follow the record groove regardless of the lateral irregularities therein, whereas the recording stylus is firmly held against lateral movement when in operative position. The means for holding the recording stylus against lateral movement are preferably thrown into operation automatically when said stylus is moved into operative position. A further object of the invention is to provide the sound box with an improved device arranged to track the record blank when the recording stylus is in operative position so as to take part of the weight of the sound box off the stylus, this device being inoperative when the reproducer stylus is in position for engagement with the record and thereby permitting the full downward pressure of the sound box to hold the reproducer stylus in engagement with the record. Figure 1 is a view partly in section and partly in side elevation of a phonograph embodying one form of the invention, the reproducing stylus being shown in operative position; Fig. 2 is a view similar to that of Fig. 1, but taken from the opposite end of the phonograph and showing both styli in elevated or inoperative position; Fig. 3 is an enlarged view partly in side elevation and partly in section of a part of the apparatus shown in Fig. 1, the recording stylus being shown in operative position; Fig. 4 is a bottom plan view of the device shown in Fig. 3, the record cylinder being omitted; Fig. 5 is a rear elevation of the device shown in Fig. 3 with some of the parts omitted or broken away; Fig. 6 is a top plan view partly in section of the greater part of the apparatus shown in Fig. 1; and Fig. 7 is a perspective view of a detail of construction.