US903575A - Horn for reproducing natural tones. - Google Patents

Description

C. C. JADWlN. HORN FOR REPRODUCING NATURAL ToNBs.

APPLICATION FILED .TUNE 20, 1908.

Patented Nov. l0, 1908.

wiwi CORNELIUS CA IADWIN, OF HONESDALE, PENNSYLVANIA.

HORN FOR REPRODUCING NATURAL TONES.

Specification of Letters atent.

Patented Nov. 10, 1908.

Application filed June 20, 1908. Serial No. 439,574.

To all whom it may concern.'

e 1t known that l, CORNELIUS C. JADWIN,

a citizen of the United States, residing at 3 llonesdale, in the county of -Wayne and State ot lennsvlvania, have invented a certain new and useful llorn for lteproducing Natural Tones, ot' which -the following is a specification, reference beingr had therein to the accon'ipanying drawing.

This invention relates to horns for invention heilig to provide an article of the class described which is applicable to any of the sound reproducing machines now in common use and adapted to be hinged to the cabinets containing the instrument to enable the records to be removed and replaced on the instrument and the necessary adjustments to be etl'ccted. i

A further object of the invention is to provide a horn which embodies a plurality of sound passages combined with a common throat, and means for varying the volume of sound waves transmitted to the respective passages to vary the tones finally produced by the horn.

With the above and other objects in View, the nature ot' which will more fully appear as the description proceeds, the invention consists iu thc novel ccmstruction, combination and I arrangement of parts as herein fully described, illustrated and claimed.

ln'the accompanying drawings Figure 1 is a vertical sectional view of a sound reproducing cabinet, showing a machine mounted therein and illustrating the improved horn also shown in longitudinal section. Fig. 2 1s a front elevation of the cabinet section containing the horn. Fig. 3 is a reduced Vertical section showing the horn applied to another type of instrun'ient.

Referring to the drawings, 1 designates the main body or section of a cabinet in the upper portion of which is mounted a sound reproducing instrument 2, the instrument illustrated in Fig. l being ot the type known as a graphophone and embodying an arm supporting bracket f3 a reproducer 4 and a sound-transmitting conduit 5 leading ott from the reproducer.

'ln order to carry out the present invention, the conduit 5 is supported by the bracket 3 or an extension 6 thereof and is provided with an upturned portion 7 having a circumferential flange 8, the purpose of which will appear.

Mounted on the main section 1 of the cabii net is a superimposed section 9 the same being hinged at 1() to the main section so that it may be thrown back to give access to the instrument contained in the main section in order to permit thc records to be changed and the other necessary adjustn'ients to be effected. The cabinet section 9 is closed on all sides except at the front which is parreproi ducing natural tones the main object of the :a tight joint between the throat 16 and the upstanding portion 7 of the conduit 5, a gasket or packing washer 1T of some soft flexible material such as telt, leather or rubber is interposed between the iiange 8 and the bottom 1l of the ipcrimposed cabinet section, the part 17 being preferably secured to and carried by the cabinet section 9.

The horn embodies a plurality of sound passages, 1S designating the main passage and 1S) an auxiliary passage which follows the general direction of the main passage as shown in Fig. l but is of relatively smaller capacity, being divided oit from the main passage by an intervening wall or partition 20 which also divides the throat 16 into a corresponding number of passages.

21 designates a divider or pallet which is jointed at its upper end as shown at 22 to the'corresponding extremity of the Wall or partition Q0 as clearly shown in Fig. l, adapting the lowerfree end of said divider to be moved back and forth across the throat 16, this being accomplished by means of a suitable handle which is shown as embodying a stem or rod 23 jointed to the divider at 24 and preferably having a knob or button 25, the construction described enabling the divider or pallet to be moved or adjusted for the purpose ot varying the relative volume of sound passing to the respective pasi sages 18 and 19.-

2G designates an opening or port leading separated by the divider or pallet 2l. The opening 52S is controlled as to size by means of a damper 27 having a suitable operating knob or projection 28 and mounted to slide in suitable guides 29 whereby it may vbe manually moved across the opening 2G to vary the size of the opening to suit thenature or character of the sounds coming from the reproducing instrument..

lli/'here the invention is to be used in connection with an Edison phonograph as shown in Fig. 3, the traveling reproducer fl may have the flexible sound conduit 5 connected at one end to a nozzle 30 supported by a bracket 3l connected to one Wall of the main cabinet section l as shown in Fig. 3, which nozzle will be provided with a flange 8 forming a seat ior the gasket or packing Washer l? above described.

32 designates a stop or` rest for supporting the hinged Vsection of the cabinet when thrown back to give access to the instrument.

By means of the construction above decribed, the volume or' sound transmitted through the horn is divided or split up after the manner of the ordinary human head' j the parl 16 correspondlng with the throat,

the part :El representing the pallet, the pas-A passages leading therefrom, and means for varying the relative capacities of said passages.

2. A horn for the purpose specified comprising -nlain and auxiliary passages, a throat common to both passages, and means for varying the relative area of communication between said passages and throat.

3. Ahorn for the purpose specified comprising main and auxiliary passages, a throat commento both passages, and a mov# able divider for regulating the volume of sound waves delivered to the respective passages. f

Ll. A horn for the purpose specified comprising main and auxiliary passages, a throat common to both passa-ges, a divider for regulating the volume of sound Waves delivered to the respective passages, and means for adjusting said divider.

5. A horn for the purpose specified comprising main and auxiliary passages, a throat common to both passages, an adjustable divider for regulating the volume of sound waves delivered to the respective passages, and a damper controlling the oommunication between said passages Where they reunite.

G. A horn for the purpose specified coinprising` a cabinet section, a throat, main and auxiliary sound passages leading from said throat, means for varying'the relative area of con'nnunieation between said passa 'es and throat, and means ou the horn for e ecting a closed joint between said throat and the seundftransmitting conduit of a reproducing instrument.

ln testimony whereof l afliX my signature in presence of tivo Witnesses.

CQRNELIUS C. JADWIN.

Vitnesses Cino. P. Ross, EARL' Smnzwoon.

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