US1270526A - Phonograph-needle. - Google Patents

Description

L. C- KEEN & 1.1V]. KLEVAN..

PHONOGRAPH NEEDLE APPLICATION mm 00123. I911.

Patented June 25, 1.918.

Lewis 0. KEEN JOHN M. KLEVHN LEWIS C.-KJEEN AND JOHN NI. KLEVAN, OF PHILADELPHIA, PENNSYLVANIA.

Patented dune ilWl.

Application filed October t, 1917. Serial No. 1%,Ml.

11 2W1g52fl Specification of Letters Patent. I

one of the shoulders 9 abuts against the end of the holder and limits such movement of the lever so that the point 7 within the lever To all whom it may concern:

'l3e it known that LEWIS C. an and Joun M. KLavAN, citizens of the United States, residing at Philadelphia, in the t county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in 'Phonograph-Needles, of which the following is a specification, reference being had to the accompanying drawings. 1

This invention relatesto an improved phonograph needle, and has for its primary obj cct to provide a double pointed needle, which is of such construction that the harsh, discordant scratching noise or sound incident to the operation of the phonograph with the ordinary commercial needle now in general use will be eliminated.

And it is another object of our invention to provide a double pointed needle of reat wear resisting quality, having a centra cylindrical enlargement constituting a stop to limit the movement of either end of the needle into the holder on the sound box, and thus prevent possible blunting or other injury to the needle point. I

It is a further general object of the invention to provide an article of the above character which will be very serviceable and cflicient in practical use, requires no alterations in the construction of the ordinary needle holder, and can be manufactured in large quantities at. relatively small cost.

With the above and other objects in view, our invention consists in the novel features of construction, combination and arran ement of parts to be hereinafter more fully described, claimed, and illustrated in the accompanying drawing, in which: to v Figure 1 is a sectional view through the needle holder of a sound box having one of our improved needles secured therein; and

Fig. 2 is a perspective view of the needle.

Referring in detail to the drawing, 5 designates the shank or body of the needle, preferably of cylindrical form and having conical or tapered ends 6, from the apex of which the needlepoint 7 projects, said point blunted whereby it would be rendered unservieeable. The needle is preferably constructed of silver and nickel or some other relatively li ht metal ofi'ering. great resistance to frictional wear. Each of the needle points 7 may be used for the playing of a number of records.

From the foregoing description taken in connection with the accompanying drawing, the construction, manner of use and several clearly understood. By the provision of a double pointed needle having the stop shoulders 9, the utility of phonograph needles will be appreciably increased, without increasing the manufacturin cost or the retail selling price of the needl es to any material ext'ent. Preferably, the distance from each of the shoulders 9 to the respective needle points is but it will be understood that this is not obligatory and our in? vention is not to be so limited, as the needle holders on various types of phonographs may differ in construction. Therefore, while we have herein shown and described the preferred form and construction of the several features of our improved needle, the device is neverthelesssusceptible of considerable modification and we, therefore, reserve the privilege of adopting all such legitimate changes as may be fairly embodied within the spirit and scope of the invention as claimed.

Having thus fully described our invention, what we claim isi.

As an im roved article of manufacture, a double pointed sound reproducing needle or stylus formed with a cylindrical enlargement presenting spaced annular shoulders afiording stops to limit the movement of either end of the needle into a holder.

In testimony whereof we hereunto allia our signatures in the presence of two witbginTg adapteid for engagement in the base nesses.

t o t c reeor. groove.

The needle shank is centre formed with a cylindrical enlargement 'aording spaced J annular shoulders 9. As clearly seen in lFi. Witnesses:

1 of the drawing, when one end of the needle llamas A. Belem, th is inserted into the bore of the needle holder,

WILLIAM H. nrrrconm.

advantages of our improved needle will be ment intermediate of its ends, said enlarge-" cannot strike the base of the bore and become ill)

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