GB1217577A - Telephone ringer - Google Patents
Telephone ringerInfo
- Publication number
- GB1217577A GB1217577A GB1371068A GB1371068A GB1217577A GB 1217577 A GB1217577 A GB 1217577A GB 1371068 A GB1371068 A GB 1371068A GB 1371068 A GB1371068 A GB 1371068A GB 1217577 A GB1217577 A GB 1217577A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- attached
- cross
- plate
- magnetic
- 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
- G10K1/063—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 the sounding member being a bell
- G10K1/064—Operating or striking mechanisms therefor
Abstract
1,217,577. Reciprocating motors. STANDARD TELEPHONES & CABLES Ltd. 21 March, 1968, No. 13710/68. Heading H2A. [Also in Divisions G4-G6] A reciprocating motor including a magnetic device for use as a telephone ringer employs a single H-cross-section soft iron core for a coil 13 which is energized by A.C. to cause an armature 50 to rock between polepieces 15 and (16) which are arranged to have the same polarity, such that a hammer 70, attached to the armature strikes a pair of bells (not shown). The polepieces are formed by extensions of the cheeks 11 and 12 of the core and extend through slots in a non-magnetic support plate 20 which is adjustably mounted on cheeks 11 and 12 by screws 80 and slits 81 and is equipped with a permanent magnet 30 attached on the side nearest coil 13. Magnet 30 is arranged'to have its magnetic axis perpendicular to the longitudinal axis of the magnet so that the polepieces each have the same polarity. The armature is arranged to pivot on semi-cylindrical fulcra (24), (Fig. 4, not shown) attached to plate 20 at a point intermediate the ends of the armature, a flat cross-shaped spring 60 being employed to give the armature a rest position substantially parallel to plate 20. Each of the two limbs of the cross has holes 61 and (63) by which means the cross is attached by rivets 23 through holes 61 to the plate 20 and by rivets 51 through holes (63) to the armature. Non-magnetic rivets 82, 83 are provided to prevent the armature locking in one position. Alternatively, the entire H-member can be coated with plastics material to achieve the same object. Figs. 5 to 8 (not shown) illustrate an alternative embodiment in which the hammer extends from the armature in the opposite direction to that shown through an aperture in the support plate and under the coil.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1371068A GB1217577A (en) | 1968-03-21 | 1968-03-21 | Telephone ringer |
DE19691913710 DE1913710C3 (en) | 1968-03-21 | 1969-03-18 | Polarized electromagnetic alarm clock |
BE730220D BE730220A (en) | 1968-03-21 | 1969-03-21 | |
NL6904356A NL6904356A (en) | 1968-03-21 | 1969-03-21 | |
ES365047A ES365047A1 (en) | 1968-03-21 | 1969-03-21 | Telephone ringer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1371068A GB1217577A (en) | 1968-03-21 | 1968-03-21 | Telephone ringer |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1217577A true GB1217577A (en) | 1970-12-31 |
Family
ID=10027975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1371068A Expired GB1217577A (en) | 1968-03-21 | 1968-03-21 | Telephone ringer |
Country Status (5)
Country | Link |
---|---|
BE (1) | BE730220A (en) |
DE (1) | DE1913710C3 (en) |
ES (1) | ES365047A1 (en) |
GB (1) | GB1217577A (en) |
NL (1) | NL6904356A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2128929B1 (en) * | 1996-04-19 | 2000-01-16 | D Schulz Bodo Reinhard | ELECTROMECHANICAL DRIVE ASSEMBLY AND ACOUSTIC SIGNALING PROVIDED WITH SUCH DRIVE ASSEMBLY. |
-
1968
- 1968-03-21 GB GB1371068A patent/GB1217577A/en not_active Expired
-
1969
- 1969-03-18 DE DE19691913710 patent/DE1913710C3/en not_active Expired
- 1969-03-21 BE BE730220D patent/BE730220A/xx not_active IP Right Cessation
- 1969-03-21 NL NL6904356A patent/NL6904356A/xx unknown
- 1969-03-21 ES ES365047A patent/ES365047A1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES365047A1 (en) | 1971-02-16 |
DE1913710C3 (en) | 1978-06-22 |
DE1913710A1 (en) | 1969-12-04 |
DE1913710B2 (en) | 1977-10-27 |
BE730220A (en) | 1969-09-22 |
NL6904356A (en) | 1969-09-23 |
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