US544732A - James a - Google Patents
James a Download PDFInfo
- Publication number
- US544732A US544732A US544732DA US544732A US 544732 A US544732 A US 544732A US 544732D A US544732D A US 544732DA US 544732 A US544732 A US 544732A
- Authority
- US
- United States
- Prior art keywords
- diaphragm
- james
- ear
- stem
- instrument
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 210000000188 Diaphragm Anatomy 0.000 description 26
- 210000003041 Ligaments Anatomy 0.000 description 6
- 238000005192 partition Methods 0.000 description 6
- 238000003780 insertion Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920002160 Celluloid Polymers 0.000 description 2
- 206010011878 Deafness Diseases 0.000 description 2
- 210000003414 Extremities Anatomy 0.000 description 2
- 229920001800 Shellac Polymers 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive Effects 0.000 description 2
- 230000002238 attenuated Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- 229940113147 shellac Drugs 0.000 description 2
- 235000013874 shellac Nutrition 0.000 description 2
- 239000004208 shellac Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
- H04R25/65—Housing parts, e.g. shells, tips or moulds, or their manufacture
- H04R25/652—Ear tips; Ear moulds
Definitions
- This invention relates to improvements in audlphones or sound-amplifying devices for the deaf, the object being to produce a de vice which shall be very efficient in its sound intensifying action, taking the place of an car-trumpet, and one which shall be of very small size'and not at all conspicuous in use, and moreover shallbe simple, practicable, and cheap of construction.
- the audiphoneot this invention essentially comprises a hollow shell or casing the head or forward end of which is composed of a vibratory diaphragmmhile the rear extremity thereof is of a contracted tubular form endwise open, asecond diaphragm located within an intermediate portion of the casing, and a connection which engages and extends from one to the other of the diaphragms.
- Figure l is a central longitudinal section of the andiphone.
- Fig. 2 is a side View, and
- Fig. 3 is a. front view, of the same.
- A represents the case or shell of the instrument, of which the forward portion die the larger, and is of bowl or forwardly-flaring form, While the rear portion is composed of the contracted tubular portion or stem 17, which is endwise open.
- the head of the instrument is composed of a vibratorydiaphragm d, of any suitable material, as thin celluloid, rubber, metal, or thin wood, and it has its circular edge seated in the rabbetf and there held by the conlining-ring g, which is held in place by shellac or other suitable adhesive.
- a vibratorydiaphragm d of any suitable material, as thin celluloid, rubber, metal, or thin wood, and it has its circular edge seated in the rabbetf and there held by the conlining-ring g, which is held in place by shellac or other suitable adhesive.
- Both diaphraglns have a connection the one with the other through the medium of the ligament m, which may be silk cord or other suitable like connectionywhich has each end knotted to lie by such knotted portion, respectively, against the forward and rear faces of the diaphragms d h, the knots beinglarger than the perforations which are centrally formed in the diaphragins.
- the length of the silk cord or other connection is such as to cause, when the cord is perfectly taut, a
- the tubular stem is of such. attenuated size extraneous sounds into the ear independently of those transmitted through theaudiphone, as well as a-frictional engagementforth'e re tention of the instrument in the car without requiring a continued hand pressure or support, the end. portion of the stem is covered with the sleeve 72, of soft rubberor analogous material.
- the instrument is preferably constructed with its hollow portion to the rear of the innor diaphragm turned more or less angular to the axis of the forward part of the case, whereby while the stem may enter the ear laterally the bodyof the audiphone willhave relatively to the stem a forward inclination, to more properly and directly receive the sound.
- An audiphone comprising a case, thewise open, and adapted for insertion into the passage of the ear, a second diaphragm located within an intermediate portion of, and as a partition across the casing, and a ligament which engages and extends from one to the otherotsaid diaphragnis,substantially as described.
- An audiphone comprising a case, the head or forward end of which is composed of wvihratory diaphragm, and the rear end of which is of a contracted tnbniar form, end- 'wis-o open, and? adapted for insertion into the passage of the ear, a aecond diaphragm lo cated within an intermediate portion of, and as a partition across the case which is of less diameter than the forward diaphragm, and'a ligament which engages and extends from one to the other of said diaphraglns,substantially as described;
Description
(No Model.)
J. A. LAKIN.
AUDIPHONE.
Patented Aug. 20, 1895.
wmw
/W A 6% i ilnrrnn Sunrise JAMES A. LAKIN, OF WESTFIELD, MASSACHUSETTS.
AUDiPHQNE.
SIEGHICATION forming port of Letters Patent No. 54.4,?32, dated August 20, 1895..
Application filed October 25, 1894. Serial No. 526,921. (No modem,
To all whom it may concern.-
Be it known that I, JAMES A. LAKIN, a citizen of the United Statesoit' America, residing at Westfield, in the county of l-Iampden and State of Massachusetts, have invented new and usefullmprovements in Audiphones, of which the following is a specification.
This invention relates to improvements in audlphones or sound-amplifying devices for the deaf, the object being to produce a de vice which shall be very efficient in its sound intensifying action, taking the place of an car-trumpet, and one which shall be of very small size'and not at all conspicuous in use, and moreover shallbe simple, practicable, and cheap of construction.
The audiphoneot this invention essentially comprises a hollow shell or casing the head or forward end of which is composed of a vibratory diaphragmmhile the rear extremity thereof is of a contracted tubular form endwise open, asecond diaphragm located within an intermediate portion of the casing, and a connection which engages and extends from one to the other of the diaphragms.
In the accompanying drawings, in which this invention?- is illustrated, Figure l is a central longitudinal section of the andiphone. Fig. 2 is a side View, and Fig. 3 is a. front view, of the same.
In the drawings, A represents the case or shell of the instrument, of which the forward portion die the larger, and is of bowl or forwardly-flaring form, While the rear portion is composed of the contracted tubular portion or stem 17, which is endwise open.
The head of the instrument is composed of a vibratorydiaphragm d, of any suitable material, as thin celluloid, rubber, metal, or thin wood, and it has its circular edge seated in the rabbetf and there held by the conlining-ring g, which is held in place by shellac or other suitable adhesive.
Between the forward. end and the rear end of the instrument-thnt is, atnportlon within the casing which is in practice of considerably less diameter than that closed by the I forward dlnphragm-lsn second diaphragm h,
which has its position as a partition across the casing and which diaphragm is suitably edgewise supported, as by resting under and against the overhanging flange or ledge l'. have found it much preferable to have I 'the rear diaphragm, which is the nearer the ear, the smaller, substantially as shown, the result or". which is that the sound transmitted from the larger to the smaller diaphragm is much simplified and intensified.
Both diaphraglns have a connection the one with the other through the medium of the ligament m, which may be silk cord or other suitable like connectionywhich has each end knotted to lie by such knotted portion, respectively, against the forward and rear faces of the diaphragms d h, the knots beinglarger than the perforations which are centrally formed in the diaphragins. The length of the silk cord or other connection is such as to cause, when the cord is perfectly taut, a
drawing of the central portions of the dia' phragms slightly toward each other, as indicated in the drawings, thereby rendering them more sensitive to the vibratory effect of the sound, and the seatsfand j prevent the diaphragms from unduly approaching each other.
The tubular stem is of such. attenuated size extraneous sounds into the ear independently of those transmitted through theaudiphone, as well as a-frictional engagementforth'e re tention of the instrument in the car without requiring a continued hand pressure or support, the end. portion of the stem is covered with the sleeve 72, of soft rubberor analogous material.
The instrument is preferably constructed with its hollow portion to the rear of the innor diaphragm turned more or less angular to the axis of the forward part of the case, whereby while the stem may enter the ear laterally the bodyof the audiphone willhave relatively to the stem a forward inclination, to more properly and directly receive the sound.
Having thus described my invention, what I claim, and desire to secure by Letters Patent, is
1. An audiphone comprising a case, thewise open, and adapted for insertion into the passage of the ear, a second diaphragm located within an intermediate portion of, and as a partition across the casing, and a ligament which engages and extends from one to the otherotsaid diaphragnis,substantially as described.
2. An audiphone comprising a case, the head or forward end of which is composed of wvihratory diaphragm, and the rear end of which is of a contracted tnbniar form, end- 'wis-o open, and? adapted for insertion into the passage of the ear, a aecond diaphragm lo cated within an intermediate portion of, and as a partition across the case which is of less diameter than the forward diaphragm, and'a ligament which engages and extends from one to the other of said diaphraglns,substantially as described;
J AM ES A. LAKIN.
Publications (1)
Publication Number | Publication Date |
---|---|
US544732A true US544732A (en) | 1895-08-20 |
Family
ID=2613478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US544732D Expired - Lifetime US544732A (en) | James a |
Country Status (1)
Country | Link |
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US (1) | US544732A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2568823A (en) * | 1948-08-11 | 1951-09-25 | Bell Telephone Labor Inc | Loud-speaking telephone set |
US10052234B2 (en) | 2015-01-19 | 2018-08-21 | 3M Innovative Properties Company | Hearing protection device with convoluted acoustic horn |
EP3719140A1 (en) | 2009-11-06 | 2020-10-07 | The Board Of Trustees Of The Leland Stanford Junior University | Non-invasive diagnosis of graft rejection in organ transplant patients |
-
0
- US US544732D patent/US544732A/en not_active Expired - Lifetime
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2568823A (en) * | 1948-08-11 | 1951-09-25 | Bell Telephone Labor Inc | Loud-speaking telephone set |
EP3719140A1 (en) | 2009-11-06 | 2020-10-07 | The Board Of Trustees Of The Leland Stanford Junior University | Non-invasive diagnosis of graft rejection in organ transplant patients |
US10052234B2 (en) | 2015-01-19 | 2018-08-21 | 3M Innovative Properties Company | Hearing protection device with convoluted acoustic horn |
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