US78493A - Improvement in eak-trumpets - Google Patents

Description

'1'. H. ,STILWELL. EAR TRUMPET.

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To ALL WHOM; IT MAY CONCERN:

Be it known thatI, DI'QTHOMAS H. Srrrnwstn, of New York, in the county'and State of New York, beget invented a new and improvediEabTi-um-pet; and I do hereby declare that the following is a full, clear, and] guitar tat 2s gaunt @ffirr.

THOMAS H. STILWELL, M. 1) OF NEW YORK, N. Y.

Letters Patent No. 78,493, dated June 2, 1868; antedated May 18, 1868.

IMPROVEMENT IN EAR-TRUMPETS.

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exact description thereof, which will enable others skilled in the art to make and use the same, reference being bad to the'accompanying drawings, forming part of this specification.

Figurel represents a. perspective view of my invention.

Figure'2 is a detail longitudinal .section of the same.

Similar letters ofreference indicate corresponding parts.

This; invention relates "to a new device, which is to be inserted in the ear to support'a diseased drum, or to invigorate paralyzed nerves.

This invention consists in the use of two small trumpet-shaped tubes,-which are just large enough to be inserted into the mcatug externus, so as. to reach to the drum or membrane tympani, while they scarcely project from-the outside of the ear.

On e'tube is inserted in each ear, to support the drum, and bpth tubes are connected by means of, a copper or other wire, the objectof which is to establish-an,electrieal current between the tubes, so as to invigorate paralyzed or weakened auditory nerves. 1

.The invention also consists in the use of a coiled wire inserted in each tube, to increase the vibrations ofthe air, and to thereby make the sounds appear louder to the patient.

I A A represent two trumpet-shaped tubes, bent so as to fit the meatz eztemz', into which they are to be inserted, and projecting but very little beyond the outer car. They are connected by means'of a wire, B, which is laid over the hack of the head. I Within each tube is arranged a vibrating spiral wire, C, asshown in fig. 2.

The instrument supports the diseased drum,'and performs the'duty'of' the same, relieving it, and giving it an opportunity to rest and to recuperate.

By means of the wire a c nrrent is established between the nervcsoof the ear,"whereby the nerves may be charged, so that those which have lost their power may be restored to life, and their, hearing-property may be re-established.

I claim as new, and desire to secure by Letters Patent- The tubular trumpets A A, connected by means of a. wire rod, B, and having vibrating wires 0 arranged within them, substantially as-and for the purpose specified.

THOS. H, STILWELL; M..1).' Witn esses Ansx. F. Rossn'rs; J. W. B. (lovme'rom

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