GB584100A - Improvements relating to electric bells - Google Patents
Improvements relating to electric bellsInfo
- Publication number
- GB584100A GB584100A GB2467144A GB2467144A GB584100A GB 584100 A GB584100 A GB 584100A GB 2467144 A GB2467144 A GB 2467144A GB 2467144 A GB2467144 A GB 2467144A GB 584100 A GB584100 A GB 584100A
- Authority
- GB
- United Kingdom
- Prior art keywords
- box
- carrying
- armature
- contacts
- fluid
- 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
- G10K1/08—Details or accessories of general applicability
- G10K1/26—Mountings; Casings
Abstract
584,100. Bells. GRAHAM & CO., Ltd., A., and VAUGHAN. C. H. Dec. 8, 1944, No. 24671. [Class 13] In an electric bell in which the contacts 27 and 30 are contained in a fluid-tight box 1, adjustment of the contacts is effected through a tube 39 extending from the box 1 and closed by a fluid-tight screw cap 41. The adjusting means consists of a rotatable rod 33 carrying a cam 32 which engages a leaf spring 42 carrying the contact 30 and the rod is held in position by a locking spring 37 engaging a toothed wheel 36. The magnet system comprises a coil 17 and a parallel core 18. The armature may be inside or outside the box 1 and in the latter case, as shown, the blade spring carrying the contact 27 extends through a hole in the box closed by a fluid-tight diaphragm into the path of a screw carried by the armature. When the armature is attracted, the screw flexes the spring and the diaphragm and separates the contacts. The gong 16, through. which the tube 39 may also extend, is fixed to a boss 15 on the box 1 which also has radial arms 7 carrying a ring 6 fitted with fixing lugs 8. Specification 552,489 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2467144A GB584100A (en) | 1944-12-08 | 1944-12-08 | Improvements relating to electric bells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2467144A GB584100A (en) | 1944-12-08 | 1944-12-08 | Improvements relating to electric bells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB584100A true GB584100A (en) | 1947-01-07 |
Family
ID=10215427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2467144A Expired GB584100A (en) | 1944-12-08 | 1944-12-08 | Improvements relating to electric bells |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB584100A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2191625A (en) * | 1986-05-16 | 1987-12-16 | Seikosha Kk | Electromagnetic bell unit and method of making the same |
-
1944
- 1944-12-08 GB GB2467144A patent/GB584100A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2191625A (en) * | 1986-05-16 | 1987-12-16 | Seikosha Kk | Electromagnetic bell unit and method of making the same |
| GB2191625B (en) * | 1986-05-16 | 1990-08-22 | Seikosha Kk | Electromagnetic bell unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB968562A (en) | Improvements in or relating to electromagnetic relays | |
| GB584100A (en) | Improvements relating to electric bells | |
| US2791765A (en) | Magnetic sound generators | |
| GB1227512A (en) | ||
| ES8203161A1 (en) | Electromagnetic horn. | |
| GB574523A (en) | Improvements in or relating to telephone receivers | |
| US1542746A (en) | Telephone instrument | |
| GB562339A (en) | Improvements in or relating to electromagnetic relays | |
| GB253080A (en) | Telephone instrument | |
| GB740502A (en) | Electromagnetic sound-producing horns | |
| GB735075A (en) | Improvements in or relating to polarised a.c. bells | |
| GB695909A (en) | Improvements in apparatus for measuring recording or controlling ph | |
| GB204734A (en) | Improvements in electrically-operated warning horns of the diaphragm type | |
| GB1273690A (en) | An electroacoustical horn | |
| GB971540A (en) | Improvements in electrical pulse generators | |
| GB843832A (en) | Improvements relating to electric bells | |
| GB603981A (en) | Contact device for instrument type relays | |
| GB558930A (en) | Improvements in and relating to solenoid-operated electric bells | |
| GB683332A (en) | Improvements in or relating to moving or attracted iron measuring instruments having band suspensions | |
| FR2349160A1 (en) | Battery-operated pendulum clock - has permanent magnet cooperating with inductive coil to maintain pendulum movement | |
| GB556990A (en) | Improvements in or relating to electromagnetic interrupters | |
| GB145277A (en) | Improvements in electric bell apparatus | |
| GB753837A (en) | Improvements in sealed adjusting devices for instrument cases | |
| GB716167A (en) | Electromagnetic indicator signal for telecommunication purposes | |
| GB720005A (en) | Improvements in, or relating to, electric fencing |