GB629510A - Improvements in or relating to electro-magnetic signalling devices - Google Patents

Improvements in or relating to electro-magnetic signalling devices

Info

Publication number
GB629510A
GB629510A GB2994747A GB2994747A GB629510A GB 629510 A GB629510 A GB 629510A GB 2994747 A GB2994747 A GB 2994747A GB 2994747 A GB2994747 A GB 2994747A GB 629510 A GB629510 A GB 629510A
Authority
GB
United Kingdom
Prior art keywords
springs
electromagnets
permanent magnet
separate
secured
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
Application number
GB2994747A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Automatic Telephone and Electric Co Ltd
Original Assignee
Automatic Telephone and Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Automatic Telephone and Electric Co Ltd filed Critical Automatic Telephone and Electric Co Ltd
Priority to GB2994747A priority Critical patent/GB629510A/en
Publication of GB629510A publication Critical patent/GB629510A/en
Expired legal-status Critical Current

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

629,510. Reciprocating-machines. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd., SMITH, S. R., and EDDOWES, S. G. Nov. 11, 1947, No. 29947. [Class 35] [Also in Group XXXVIII] A device for operating electric bells &c. comprises a permanent magnet armature cooperating with an electromagnetic field structure providing two separate fields along the axis of the armature to produce axial motion depending on the polarity of the current. The field structure comprises a pair of separate electromagnets 14, 17 carried on lugs 12, 13 which are bent up from a frame 10 of magnetic material. A further bent-up lug 11 is apertured to allow. clear passage of the cylindrical permanent magnet 28 and constitutes a common pole for the two electromagnets. The separate outer poles of the electromagnets are provided by magnetic plates 22, 26 which are secured to the free ends of the electromagnet cores. The permanent magnet is secured to supporting leaf-springs 20, 24 by cylindrical fixing nuts 32, 33, which pass through apertures in the outer pole-plates 22, 26. These nuts are threaded on a brass rod 29 passing through the magnet and carrying a steel ball 36 for. striking the gong 37. Adjustment is made by screws 34, 35 bearing on the springs. It is stated that two gongs may be used and the device may be operated by A.C. or interrupter contacts may be carried on the springs.
GB2994747A 1947-11-11 1947-11-11 Improvements in or relating to electro-magnetic signalling devices Expired GB629510A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2994747A GB629510A (en) 1947-11-11 1947-11-11 Improvements in or relating to electro-magnetic signalling devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2994747A GB629510A (en) 1947-11-11 1947-11-11 Improvements in or relating to electro-magnetic signalling devices

Publications (1)

Publication Number Publication Date
GB629510A true GB629510A (en) 1949-09-21

Family

ID=10299783

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2994747A Expired GB629510A (en) 1947-11-11 1947-11-11 Improvements in or relating to electro-magnetic signalling devices

Country Status (1)

Country Link
GB (1) GB629510A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749453A (en) * 1952-04-30 1956-06-05 Reeve Electrical Co Inc Electric bell motor
CN102566400A (en) * 2010-12-10 2012-07-11 蒙特雷布勒盖股份有限公司 Watch striking machanism

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2749453A (en) * 1952-04-30 1956-06-05 Reeve Electrical Co Inc Electric bell motor
CN102566400A (en) * 2010-12-10 2012-07-11 蒙特雷布勒盖股份有限公司 Watch striking machanism
CN102566400B (en) * 2010-12-10 2015-08-12 蒙特雷布勒盖股份有限公司 The hit agency of table

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