US779033A - Amplifying-horn. - Google Patents

Description

PATENTED JAN. 3, 1905.

a. EIGHHORN. AMPLIFYING HORN.

APPLICATION FILED APR 27 1904 WITNESSES: INVENTORQ mmrhglmshol 1,,

ATTORNEY..

A241 i ivflm Patented January 3, 1905.

PATENT OFFICE.

CHARLES J. EICHHORN, OF NEWARK, NEIV JERSEY.

AMPLIFYING-HORN.

SPECIFICATION forming part of Letters Patent No. 779,033, dated January 3, 1905.

' Application 1116a April 27, 1904. Serial No. 205,175.

To all whom it may concern:

Be it known that I, OHARLEs J. EIGHHORN, a citizen of the United States, residing at Newark, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Amplifying-Horns; and Ido hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to numerals of reference marked thereon,which form a part of this specification.

The objects of this invention are to direct the amplified sound-waves from a talking-machine in accordance with the desire of the operator and the peculiar conditions of the room, whereby the amplified sound may be thrown or centered to that part of the room where the auditors are assembled or stationed, thereby enabling articulations of a reproduced speech or song to be more perfectly understood and the reproductions be rendered more agreeable and pleasing to the said auditors.

A further object is to provide ahorn which can be changed in position to give different sound effects from a given machine without removing the horn from the speaker or reproducer and to secure other advantages and results, some of which may be hereinafter referred to in connection with the description of the working parts.

The invention consists in the improved amplifying-horn and in the arrangements and combinations of parts of the same, all substantially as will be hereinafter set forth and finally embraced in the causes of the claim.

Referring to the accompanying drawings, in which like numerals of reference indicate corresponding parts in each of the several figures, Figure 1 is a side elevation of the improved amplifyinghorn. Fig. 2 is an end view of the same. Fig. 3 is a section taken on line 00, Fig. 1.

In said drawings, 10 indicated the body of the horn, having a small cylindrical end 11, adapted to be coupled to the speaker of a sound-reproducing machine in any suitable manner. 12 is the bell end of the horn. Said horn may be of sheet metal, paper, or any other suitable material. Heretofore horns for talking-machines, &c. have been circular in crosssection or end elevation, and so have directed the amplified sound-waves uniformly in all directions from the longitudinal axis of the horn. In my improved construction the horn is made oval or elliptical in cross-section, as shown in Figs. 2 and 3, both at the bell end and along the body thereof, the body at the small end gradually changing from a circle to an ellipse. Thus constructed the sound-rays are directed over an oblong area, and thus should the oblong horn be disposed vertically, as shown in Fig. 2, the rays are directed toward the vertical plane of the axis of the horn, and in this relation the horn is adapted to concentrate or direct the sound to a selected portion of the hall or room where an audience may be gathered, or should I prefer to spread the sound horizontally over the said hall and prevent much of the sound rising toward a high ceiling, where it would be lost to the auditors, I may simply turn the horn on its axis to a horizontal position without detaching it from the machine, and thus adjusted the sound will be concentrated horizontally, so that the sound rays or waves may be more perfectly audible to the listeners.

The body of the horn is provided with two eyelets 13 14, preferably soldered or riveted thereto, one of the eyelets being in the plane of the shortest diameter of the horn and the other in the plane of the longest diameter of the horn, and to said eyelets a suspensory device, such as the ring 15, may be detachably secured.

In practice the operation of the horn is such as is common to all horns of this class, with the exception that the sound-rays are differently directed, as above explained, and the sound thereof modified accordingly.

Having thus fully described the invention, what I claim as new is 1. The improved amplifying-horn herein described, comprising a flaring body which is oval or elliptical in cross-section, the said body being provided with two eyelets, one of which is in the longer and the other in the In testimony that I claim the foregoing I shorter diametrical plane of the said body. have hereunto set my name this 18th day of 2. The improved amplifying-horn herein de- April, 1904. scribed, having a round small end and an oval CHARLES J. EIGHHORN. 5 large end, the said body being provided with Witnesses:

suspensory means in its longer and shorter CHARLES H. PELL,

diametrical planes, substantially as set forth. RUssELL M. EVERETT.

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