GB1177925A - Improvements in or relating to Telephone Headsets - Google Patents
Improvements in or relating to Telephone HeadsetsInfo
- Publication number
- GB1177925A GB1177925A GB1092466A GB1092466A GB1177925A GB 1177925 A GB1177925 A GB 1177925A GB 1092466 A GB1092466 A GB 1092466A GB 1092466 A GB1092466 A GB 1092466A GB 1177925 A GB1177925 A GB 1177925A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ear
- piece
- hand
- headband
- earpiece
- 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
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/04—Supports for telephone transmitters or receivers
- H04M1/05—Supports for telephone transmitters or receivers specially adapted for use on head, throat or breast
Landscapes
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Headphones And Earphones (AREA)
Abstract
1,177,925. Telephone headsets; resonators. AIRMED Ltd. 6 March, 1967 [11 March, 1966], No. 10924/66. Headings H4J and H4X. Two insulated wire springs forming the headband of a telephone headset pivotably support at their ends two ear-pieces, enabling angular adjustment of the ear-pieces to the wearer's head, and also provide electrical connection to an ear-piece on one side of the headset from terminals located at the other side. A pair of Helmholtz resonators within each earpiece amplify the sound from the ear-piece receivers. As shown in Figs. 1 and 3 a pair of spaced insulated wire springs forming the headband 12 support at their ends for angular movement two ear-pieces 1, 2 by means of lugs 14 which can slide on the wires and which are connected to the sides of each ear-piece by pairs of pins 14, 15. The telephone line is fed to terminals within the right-hand ear-piece 2 and is extended via the wire springs of the headband to the receiver of the left-hand ear-piece 1. A microphone boom 10 is supported for rotation by a ball-joint 11 on the right-hand ear-piece. The sound from each receiver is magnified by a pair of Helmholtz resonators (Fig. 3) comprising an inner cylindrical chamber 19 which communicates with an outer annular chamber 20 by holes 22. Further holes 23 in the annular chamber emit the sound. The back cover 7 of the left-hand earpiece is hinged to open and allow the wearer to hear external sounds. A pad 3 is provided for each earpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1092466A GB1177925A (en) | 1966-03-11 | 1966-03-11 | Improvements in or relating to Telephone Headsets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1092466A GB1177925A (en) | 1966-03-11 | 1966-03-11 | Improvements in or relating to Telephone Headsets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1177925A true GB1177925A (en) | 1970-01-14 |
Family
ID=9976823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1092466A Expired GB1177925A (en) | 1966-03-11 | 1966-03-11 | Improvements in or relating to Telephone Headsets |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1177925A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4139743A (en) * | 1977-07-18 | 1979-02-13 | Telex Communications, Inc. | Headset |
| US4634816A (en) * | 1984-05-21 | 1987-01-06 | Northern Telecom Limited | Communications headset |
| US7653207B2 (en) | 2004-07-08 | 2010-01-26 | Sennheiser Electronic GmbH & Co | Bistable spreading head harness |
-
1966
- 1966-03-11 GB GB1092466A patent/GB1177925A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4139743A (en) * | 1977-07-18 | 1979-02-13 | Telex Communications, Inc. | Headset |
| US4634816A (en) * | 1984-05-21 | 1987-01-06 | Northern Telecom Limited | Communications headset |
| US7653207B2 (en) | 2004-07-08 | 2010-01-26 | Sennheiser Electronic GmbH & Co | Bistable spreading head harness |
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