US1408337A - Needle or stylus - Google Patents

Description

- I v INVENTOR. l 9 Magma A? M M BY G. E. BERNECKER.

NEEDLE 0R STYLUS. APPLICATION FILED AUG, 18. 1919.

1,408,337, Patented Feb. 28, 1922.

WITNESS A TTORNEYS UNITED STATES PATENT OFFICE.

GEORGE E. BERNECKER, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO STANDARD ACCESSORY CORPORATION, OF MILWAUKEE, WISCONSIN, A CORPORATION 01* WISCONSIN.

NEEDLE OR STYLUS.

. Specification of Letters Patent.

Patented Feb. 28, 1922.

Application filed August 18, 1919. Serial No. 318,292.

To all whom it may concern:

Be it known that I, GEORGE E.- BERNEGKER, a citizen of the United States, and resident of Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented new and useful Improvements in Needles or Styli,

of which thefollowing is a description, reference being had to the accompanymg drawings, which are a part of this specification.

The present invention relates to certain new and useful improvements in needles or styli for use in connection with sound boxes of graphophones or gramophones, and has for its primary object to provide a needle or stylus which can beused with the least possible wear either upon the needle or upon the record and which can be so shifted as to modify the character or quality of the tone proudced as the groove of the record is brought into contact with the end of the needle.

Another object of the present invention is to provide a needle or stylus of the class described which is provided with a reduced flattened portion medially of its ends and centrally of the needle with respect to its longitudinal axis.

A further object of the present invention is to provide a needle or stylus of the class described which may be either cast, milled or stamped whereby to provide what may be commonly termed a permanent needle or stylus capable of producing tones of various qualities.

lVith the above and other objects in view which will appear as the description proceeds, my invention resides in the novel construction, combination and arrangement of parts substantially as hereinafter described and more particularly defined by the appended claim, it being understood that such changes in the precise embodiment of the hereindisclosed invention may be made as come within the scope of the claim.

In the accompanying drawing I have illustrated one complete example of the physical embodiment of my invention constructed according to the best mode I'have so far devised for the practical application of the principlesthereof, and in which:

' Fig. 1 is a side view of the needle or- Referring now more particularly to the accompanying drawing, 5 designates the shank of a needle or stylus which is preferably cylindrical in cross section and adapted to be received in the usual sound box holder, not shown. The lower end 6 of the needle or stylus is rounded as illustrated in the drawings and has projecting therefrom a point 7 for engagement in the grooves of the record being played to receive and transmit vibrations caused by the irregularities in the sides of the grooves to the sound box (not shown) of the machine with which it is employed.

The needle shank has milled or otherwise formed in opposite sides thereof medially of its ends recesses 8 forming therebetween a reduced flattened portion 9 which is centrally located with respect to the longitudinal axis of the needle when viewed edgewise, and which forms a continuation of the sides of the needle when viewed sidewise. As clearly shown in the drawings, the reduced flattened portion 9 is spaced a sufficient distance from the rounded needle or stylus end 6 to provide a substantial weight between it and the point 7 to render the same readily susceptible to vibrations imparted thereto by the irregularities in the sides of the record groove. I am aware that needles or styli have been formed with a flattened or reduced portion adjacent the point, but this structure has proven unsatisfactory in that the same does not respond readily to the vibrations received by the needle point and consequently, the main advantage supposed to be obtained by this flattened or reduced portion is lost.

When the needle is set in the position depicted in Figure 1, i. e., with the flattened portion 9 in line with the grooves of the record being played, a soft or subdued tone is produced in that this flattened portion being thinner than the needle shank proper is resilient and yielding and to a certain extent takes up the vibrations so that they are transmitted to the diaphragm of the sound box less forcibly than when the needle is set with the flattened portion 9 arranged transversely with respect to V the record grooves. hen the needle is set in such a position, that is, transversely with respect to the grooves of the record, the flattened portion adds to the rigidity of the needle as regards any lateral movement and thus a loud or full tone is produced in that the vibrations will be forcibly imparted to the diaphragm as received by the needle.

The needle may be formed by milling the recesses 8 or the same may be cast, the principle being the same, and in either case, the needle being what is commonly termed in the art a permanent needle,'i. e., one which may be played fifty to one hundred times.

What I claim as my invention is: As an article of manufacture, a stylus for sound reproducing machines, comprising a one piece body member including a shank portion'and an end portion of substantially.

GEORGE E. BERNEGKER.

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