GB768736A - Improvements in or relating to magneto bells - Google Patents
Improvements in or relating to magneto bellsInfo
- Publication number
- GB768736A GB768736A GB3141754A GB3141754A GB768736A GB 768736 A GB768736 A GB 768736A GB 3141754 A GB3141754 A GB 3141754A GB 3141754 A GB3141754 A GB 3141754A GB 768736 A GB768736 A GB 768736A
- Authority
- GB
- United Kingdom
- Prior art keywords
- magnetic part
- holes
- yoke
- permanent magnet
- bells
- 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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
- G10K1/06—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube
- G10K1/062—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Lock And Its Accessories (AREA)
Abstract
768,736. Electric bells. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Aug. 25, 1955 [Oct. 30, 1954], No. 31417/54. Class 13. The iron - cored electromagnets 10, 11 and permanent magnet 12 of a magneto bell are mounted on a yoke which is formed by a low-retentivity magnetic plate 14 and a moulded or die-cast non-magnetic part 13 of zinc or aluminium alloy, and pass through aligned holes 24, 25, 26 and 15, 16, 17 in the two components. The electromagnet cores are secured against the yoke by nuts 27, while the permanent magnet, which carries the armature, is adjustably secured to the non- magnetic part 13 by screws 19 which effect a clamping action in association with clearance holes 20, tapped holes 21 and a slot 18. The non-magnetic part, in addition, has tapped holes 23 for mounting the assembly and a recess 22 which permits free movement of the gong striker.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3141754A GB768736A (en) | 1954-10-30 | 1954-10-30 | Improvements in or relating to magneto bells |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3141754A GB768736A (en) | 1954-10-30 | 1954-10-30 | Improvements in or relating to magneto bells |
Publications (1)
Publication Number | Publication Date |
---|---|
GB768736A true GB768736A (en) | 1957-02-20 |
Family
ID=10322808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3141754A Expired GB768736A (en) | 1954-10-30 | 1954-10-30 | Improvements in or relating to magneto bells |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB768736A (en) |
-
1954
- 1954-10-30 GB GB3141754A patent/GB768736A/en not_active Expired
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