US1515110A - Phonograph transmitting reproducer - Google Patents

Description

O. E. HEIBERG PHONOGRAPH TRANSMITTING REPRODUCER Filed March' 25 1920 OSCAR n. Hermana, or BROOKLYN. NEW, YORK.

PHONOGRAPH- TRANSMITTING REPRODUGER.

` Application led March 2,3, 1920.l Serial No. 368,169.

To all whom t may concer/n.:

Be it known that I, OSCAR E. Humano, a citizen of the United States, residing at 624.- 44th` Street, in the borough of Brooklyn, county of Kings, city and State ot New York, have invented a certain new and useful Improvement in a Phonograph Transmitting Reproducem' and I do hereby declare the following to be a description of my invention, such as will enable others skilled in the lart to which it appertains to make and use. same, reference being made to the accompanying drawing, and tothe letters of reference thereon, which forms a part of this invention.

This invention relates to phonograph reproducers and particularly to devices of this class adapted to transmit sound vibrations from a record to telephone receivers, radio apparatus and the like located at a predetermined distance from the reproducer, and the object of this invention is to provide an improved device of the class speciedwith which circuit wires from a source of electrical supply are connected and the vibrations of the reproducer being transmitted through j a transmitter diaphragm, granular or ball carbon and through said circuit wires, a' further ,object of the invention is to provide a device of the class specified which 1s so constructed as to obtain a more noiseless, natural and clear reproduction of the subject of a record throu h suitable apparatus at a predetermined istance vfrom the reproducer; and with these and other Objects in view the invention consists in a device of the class and for the purpose specified which is simple in construction and Operation and eiiicient in use, and which is constructed and operated as hereinafter described.

The invention is fully disclosed in the following specification, of which the accom-` panying drawing forms a part, in which the separate parts of my improvement are des-v4 ignated by suitable reference characpin each of the views, andin which I if Fig. 1 is a vertical section of a reproducer made according to my invention;

Fig. 2 a front view of the reproducer shown in Fig. 1g and,

Fig. 3 a pers ective detail view of a part of the construction shown in Fig. 2.v

In the drawing I have shown. at' 1 the casing of a reproducer which iscup-shapedein.l

form or provided on one side face 'thereof with a recess in which a diaphragm 2 is mounted and spaced between gaskets held in place by 'an annular retaining ring 4.

A stylus or needle holder 5 having an aperture 6 is pivotally mounted in insulatingblocks 7 mounted in connection with the casing 1. The blocksl 7 will be composed of such insulating material as to insulate the mounting of the stylus holder 5 in connection with the casing 1, as hereinafter set out.

Thel holder 5 is adapted to detachably support a stylus or needle 8 as indicated in the drawing. y

The upper end of the holder 5 is provided with a contact pin 9 which passes through the diaphragm 2and cooperates withpball carbon 9a. A contact wall 10 is mounted in the casing 1 inwardly of the diaphragm 2 and an insulated circuit wire is passed through casing 1 and is connected with the pin 9 of the stylus holder 5. Another circuit wire12 is passed into the casing 1, as clearly shown in Fig. 1, and indicated in Fig. 2.

The insulated blocks 7 are provided'with lcontact points 14 composed of lead or a composition of lead and other material, and these points pass into the aperture 6 of the holder 5 and form bearing or pivot members for said holder. Centrally of the'back of the casing 1 is a projecting stud 15 by means of which the reproducer may be mounted in connection with a Asuitable support.

The distinctive feature of my .invention consists in providing a reproducer of the class and for the purpose specified with a stylus or needle holder which is so mounted in connection with the reproducer casing as to be insulated therefrom, as well as the mounting of said hold-.er onsuch pivots as to eliminate the harsh reproduction of the sound wavesof a record, ywhereby a selection on a record may be reproduced through a suitable apparatus located at a predetermined distance from my improved reproducer, the vibrations being-transmitted through the electric circuit wires 11 and 12. f

i Having fully described my invention, what I clailt'i gislnew and desire to secure by TJEtteIS Patent, 1S v I A reproducer ofthe class described comprising4 a casing, a diaphragm mounted therein. a contact insaid casing inwardly of said diaphragm, a stylus holder pivotally mounted in blocks on said casing, said holder being provided with a contact pin which is secured centrally of said diaphragm and electric wires passing into said casing and one of which is secured to said contact pin, name to this specification in the presence of the pivotal connection of said stylus holder two subscribing witnesses. with said blocks being made by lead pivots A for the purpose of eliminating the harsh re- OSCAR E. HEIBERG.

5 production of sound through said repro- Witnesses:

ducen JOHN J. HARRISON,

In testimony whereof I have signed my IRvING MGDONNELL.

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