US543626A - Transmitting and receiving attachment for telephones - Google Patents
Transmitting and receiving attachment for telephones Download PDFInfo
- Publication number
- US543626A US543626A US543626DA US543626A US 543626 A US543626 A US 543626A US 543626D A US543626D A US 543626DA US 543626 A US543626 A US 543626A
- Authority
- US
- United States
- Prior art keywords
- transmitting
- telephones
- casing
- receiving attachment
- receiving
- 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
- 230000001702 transmitter Effects 0.000 description 10
- 230000004048 modification Effects 0.000 description 4
- 238000006011 modification reaction Methods 0.000 description 4
- 241000408670 Hosea Species 0.000 description 2
- 210000000088 Lip Anatomy 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005192 partition Methods 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
Definitions
- My invention relates to certain improvements in transmitting and receiving attachments for telephones; and the invention consists of two receptacles the casings of which are arranged one within the other, the rear of the outer one being attached to the transmitter and the rear of the inner one to the receiver, as hereinafter fully described, and pointed out in the claims.
- Figure 1 represents a horizontal longitudinal section of a transmitting and receiving at tachment for telephones embodying my in-- vention.
- Fig. 2 is a front view of same.
- Fig. 3 is a perspective view of. the inner casing, taken on line on on, Fig. 1.
- Fig. 3 is a vertical longitudinal section of the transmitting and receiving attachment, taken on line 00 a: of Fig. 1.
- Fig. 4 is a sectional view of a modified form of the inner casing.
- Fig. 5 is a front view of another modification.
- A represents the outercasing, which is at its rear end attached to the transmitter B.
- This casing I prefer to form of a bell shape, as shown, (but it might be of any other desired shape,) and forms a sound-receptacle A to receive the voice to be transmitted.
- the casing O is an inner receptacle, the casing O of which is preferably of conical form. To the inner end of this casing is attached the receiver D. The large end of this cone is cut back a suitable distance, as shown, from c to d, to form a re-entrant angle, the mouth being covered by a piece E, which near the is a specificasecured. in any suitable manner, thus giving support to the rear end of the inner casing.
- the object of having the conical casing C out back, as described, to form a re-entrant angle is to allow the voice to freely pass into the outer receptacle A and prevent the escape of sound through the inner casing.
- the apparatus can be supported in any suitable'place, as upon a wall or desk, and the voice will be received and can be delivered without having to place the ear or mouth close to the apparatus.
- Fig. 4 I have shown a modified form of the inner casing. In this case it is cut back on both sides instead of on one side only, as before described; and in Fig. 5 I have shown a modification in which a partition 0 is employed instead of the conical casing O. In this case the sound would be received on one side of the instrument and transmitted on the other side; but the results would not be so satisfactory as with the construction first described.
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Pipe Accessories (AREA)
Description
(No Model.)
H. W. LIBBEYQ HMENT FOR TELEPHONES. Patented July 30, 1895.
TRANSMITTING AND RECEIVING ATTAO No. 543,626.
UNITED STATES PATENT OFFICE.
HOSEA W. LIBBEY, OF BOSTON, MASSACHUSETTS.
TRANSMITTING AND RECEIVING ATTACHMENT FOR TELEPHONES.
SPECIFICATION forming part of Letters Patent No. 543,626, dated July 30, 1895.
Application filed October 9, 1894. SerialNo. 525,359. (No model.)
To aZZ whom it may concern.-
Be it known that I, HOSEA W. LIBBEY, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Transmitting and Receiving Attachments for Telephones, of which the following, taken in connection with the accompanying drawings, tion.
My invention relates to certain improvements in transmitting and receiving attachments for telephones; and the invention consists of two receptacles the casings of which are arranged one within the other, the rear of the outer one being attached to the transmitter and the rear of the inner one to the receiver, as hereinafter fully described, and pointed out in the claims.
Referring to the accompanying drawings, Figure 1 represents a horizontal longitudinal section of a transmitting and receiving at tachment for telephones embodying my in-- vention. Fig. 2 is a front view of same. Fig. 3 is a perspective view of. the inner casing, taken on line on on, Fig. 1. Fig. 3 is a vertical longitudinal section of the transmitting and receiving attachment, taken on line 00 a: of Fig. 1. Fig. 4 is a sectional view of a modified form of the inner casing. Fig. 5 is a front view of another modification.
A represents the outercasing, which is at its rear end attached to the transmitter B. This casing I prefer to form of a bell shape, as shown, (but it might be of any other desired shape,) and forms a sound-receptacle A to receive the voice to be transmitted.
O is an inner receptacle, the casing O of which is preferably of conical form. To the inner end of this casing is attached the receiver D. The large end of this cone is cut back a suitable distance, as shown, from c to d, to form a re-entrant angle, the mouth being covered by a piece E, which near the is a specificasecured. in any suitable manner, thus giving support to the rear end of the inner casing.
The object of having the conical casing C out back, as described, to form a re-entrant angle is to allow the voice to freely pass into the outer receptacle A and prevent the escape of sound through the inner casing.
The apparatus can be supported in any suitable'place, as upon a wall or desk, and the voice will be received and can be delivered without having to place the ear or mouth close to the apparatus.
In Fig. 4 I have shown a modified form of the inner casing. In this case it is cut back on both sides instead of on one side only, as before described; and in Fig. 5 I have shown a modification in which a partition 0 is employed instead of the conical casing O. In this case the sound would be received on one side of the instrument and transmitted on the other side; but the results would not be so satisfactory as with the construction first described.
What I claim is 1. In combination with a telephone trans mitter and receiver an attachment consisting of an outer casing to receive the voice to be transmitted and convey it to the transmitter and an inner casing to receive the voice from the receiver and deliver the same substantially as set forth.
2. A transmitting and receiving attachment for telephonesconsisting of an outer casing A, forming a sound receptacle A, an inner conical casing O, the front end of the same being cut to form a re-entrant angle as described and its mouth covered by a piece having a lip substantially as and for the purposes set forth.
3. The combination of a telephone transmitter and casing forming a sound receptacle attached thereto with a receiver D, and casing 0', attached thereto and arranged within the outer casing A, substantially as and for the purposes set forth.
In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, on this 28th day of February, A. D. 1894.
' HOSEA W. LIBBEY.
Witnesses:
CHAS. Srnnnn, EDWIN PLANTA.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US543626A true US543626A (en) | 1895-07-30 |
Family
ID=2612374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US543626D Expired - Lifetime US543626A (en) | Transmitting and receiving attachment for telephones |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US543626A (en) |
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0
- US US543626D patent/US543626A/en not_active Expired - Lifetime
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