US881594A - Talking-machine needle. - Google Patents

Description

110.881,594. PATENTED MAE.' 1o, 190s.

E. KNIGSTEIN.

` TALKING MAGEINE NEEDLE.

APPLIUATION FILED SEPT. 20, 1907.k

197'7'0 /VEY Aso UNITED sTATEs GBOR KNIGSIEIN, Ol` SAN FRANCISCO, CALIFORNIA.

TA LKING-MA CHINE NEE DLE No. 881,594. Specication of Letters Patent. Patented March 10, 1908.

Application filed September 20, 1907. Serial No. 393,851.

To all whom it may concern:

Beit known that I, Gon KNies'rElN', citizen of United States,'residing in the city and county of San Francisco and State of California, have invented inw and useful Improvements in 'lalki11g-Machine Needles, of which the following is a specification.

My invention'relatcs to talking machines, and especially to the needles through which the records upon the disks are transmitted through the remainder of the apparatus.

It consists in a novel form of the needle, so that by changing its position, a loud or soft tone may be transmitted.

Referring to the accompanying drawings for a more completeexplanation of my invention-Figures 1 and. 2 show different positions of the needle with relation to the disk.

In the transmission of audible sounds from disk talking machines, a steel needle is' ixed to the diaphragm or sounder of the transmite .ter and the point of this needle rests u pon the,

disk and follows the characteristic lines irom which the audible sounds are transmitted. Needles for this purpose have heretofore been iliade substantially straight, and so held-with relation to the record disk that they were lnoved smoothly over it; but they are incapable of producing any changes in the tones to be transmitted.

In my invention the needle has a shank A which is adapted to be fixed in any suitable holder connected with the diaphragm and the transmitter, and the point 2 travels upon the record disk. Intermediate between the ends of the needle the shank is bent into a curve, as shown at 3. This curve may be made lon er or shorter, and more or less abrupt in its ends, as shown in the drawings. When a needle oi" this construction is fixed in the holder so that the bend )rejects transversely of the line of travel of the disk with relation to the needle., the tones produced thereby will be ver)l muchsoftened on account of the greater length and the elasticity of the needle; and the same ell'ect will be produced whether the bend projects in one direction or tl ie other, transversely of the travel.

If the needle is fixed in its clamp or holder so that the curve is in the line of travel of the disk, and with the bend presented in either direction, the tones will be made louder and stronger, and thus enabled to regulate the tones of the instrument'to `a degree, and produce such a tone as the character of the voice or music requires.

llaving thus described my invention, what I claim and desire to secure by Letters Patent is" 1. A needle for a disk talking machine, said needle having a portion intermediate of its ends bent transversely beyond the plano of the outer sides of the needle to increase the .length and elasticity thereof'. n

2. A needle for disk talking machines, having one end adapted to be fixed and connected with the transmitter, the other end pointed to follow the lines of the disk, and an interlmediate bend which curves outwardly from the direct line of the first two portions of the needle.

In testimony whereof Ihave hereunto set my hand in presence of two subscribing witnesses. d

GABOR KONIGSTEIN. Witnesses:

C. A. PENFIELD,

S. H. NoURsE.

Images