GB231643A - Improvements in headgear for telephone receivers - Google Patents
Improvements in headgear for telephone receiversInfo
- Publication number
- GB231643A GB231643A GB550624A GB550624A GB231643A GB 231643 A GB231643 A GB 231643A GB 550624 A GB550624 A GB 550624A GB 550624 A GB550624 A GB 550624A GB 231643 A GB231643 A GB 231643A
- Authority
- GB
- United Kingdom
- Prior art keywords
- band
- head
- stud
- slidable
- sheet
- 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
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R5/00—Stereophonic arrangements
- H04R5/033—Headphones for stereophonic communication
- H04R5/0335—Earpiece support, e.g. headbands or neckrests
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R1/00—Details of transducers, loudspeakers or microphones
- H04R1/10—Earpieces; Attachments therefor ; Earphones; Monophonic headphones
- H04R1/1058—Manufacture or assembly
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Telephone Set Structure (AREA)
Abstract
231,643. Jackson Buckle Co., Ltd., H. D., and Jackson, H. D. March 4, 1924. Head-sets.-For adjusting the distance between the ear-pieces a pair of levers a is connected to the head-band e at three points of which the relative position is controlled by adjusting means associated with the central connection. In one construction, Fig. 1, each lever a, of sheet aluminium or aluminium alloy, stamped or pressed, with one or more longitudinal ribs b, carries at its outer end a pin c to which is pivoted a sheetmetal link d slidable on the band e, and its inner end is bent around a straight part of a wire loop f slidable on a screwed stud g. This stud is formed with a flat head h bearing on the band e, and a sheet-metal link j pivoted to the head h is slidable on the band. A milled nut k is provided for adjusting the loop f along the stud g. In a modification. Fig. 1, of the central connection, the link j i is replaced by a sheet-metal strip l, Fig. 5, passed under the band e, bent around the rectangular head of the stud and secured by a nut o. According to the Provisional Specification, the band e may pass through a slot formed in the rectangular head of the stud g, and the outed end of each lever a may be formed with a T-slot into which the wires of the head-band may be sprung.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB550624A GB231643A (en) | 1924-03-04 | 1924-03-04 | Improvements in headgear for telephone receivers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB550624A GB231643A (en) | 1924-03-04 | 1924-03-04 | Improvements in headgear for telephone receivers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB231643A true GB231643A (en) | 1925-04-09 |
Family
ID=9797492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB550624A Expired GB231643A (en) | 1924-03-04 | 1924-03-04 | Improvements in headgear for telephone receivers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB231643A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3148376A (en) * | 1962-01-05 | 1964-09-15 | Leonard P Frieder | Support for head engaging device |
US3447160A (en) * | 1965-11-29 | 1969-06-03 | Telex Corp The | Adjustable headset |
GB2225509A (en) * | 1988-08-22 | 1990-05-30 | Arkon Ind Limited | Adjustable headphones |
CN101330766B (en) * | 2007-09-07 | 2011-07-27 | 宁波艾克赛尔电子有限公司 | Earphone microphone capable of adjusting clamping force |
DE102008030497B4 (en) | 2008-06-26 | 2018-07-19 | Sennheiser Electronic Gmbh & Co. Kg | Handset and headset |
-
1924
- 1924-03-04 GB GB550624A patent/GB231643A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3148376A (en) * | 1962-01-05 | 1964-09-15 | Leonard P Frieder | Support for head engaging device |
US3447160A (en) * | 1965-11-29 | 1969-06-03 | Telex Corp The | Adjustable headset |
GB2225509A (en) * | 1988-08-22 | 1990-05-30 | Arkon Ind Limited | Adjustable headphones |
CN101330766B (en) * | 2007-09-07 | 2011-07-27 | 宁波艾克赛尔电子有限公司 | Earphone microphone capable of adjusting clamping force |
DE102008030497B4 (en) | 2008-06-26 | 2018-07-19 | Sennheiser Electronic Gmbh & Co. Kg | Handset and headset |
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