EP0045539A2 - Sonnerie de téléphone - Google Patents

Sonnerie de téléphone Download PDF

Info

Publication number
EP0045539A2
EP0045539A2 EP81200809A EP81200809A EP0045539A2 EP 0045539 A2 EP0045539 A2 EP 0045539A2 EP 81200809 A EP81200809 A EP 81200809A EP 81200809 A EP81200809 A EP 81200809A EP 0045539 A2 EP0045539 A2 EP 0045539A2
Authority
EP
European Patent Office
Prior art keywords
bells
bell
hammer
assembly
telephone
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.)
Ceased
Application number
EP81200809A
Other languages
German (de)
English (en)
Other versions
EP0045539A3 (fr
Inventor
Harold Ernest Barnes
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.)
Philips Electronics UK Ltd
Koninklijke Philips NV
Original Assignee
Philips Electronic and Associated Industries Ltd
Philips Electronics UK Ltd
Philips Gloeilampenfabrieken NV
Koninklijke Philips Electronics NV
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 Philips Electronic and Associated Industries Ltd, Philips Electronics UK Ltd, Philips Gloeilampenfabrieken NV, Koninklijke Philips Electronics NV filed Critical Philips Electronic and Associated Industries Ltd
Publication of EP0045539A2 publication Critical patent/EP0045539A2/fr
Publication of EP0045539A3 publication Critical patent/EP0045539A3/fr
Ceased legal-status Critical Current

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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

Definitions

  • the invention relates to a telephone bell assembly comprising two bells which are arranged to be struck alternately by a single hammer.
  • Conventional telephone bell assemblies comprise two bells each of a particular resonant frequency which are struck by a single hammer operated by an electromagnetic motor unit.
  • the bells are placed on opposite sides of the hammer so that they are struck alternately as the hammer is swung from side to side by the motor unit.
  • Such bell assemblies are relatively bulky items which, while - satisfactory in the traditional telephone instruments which have a relatively large volume, take an unacceptably large proportion of the interior volume of smaller instruments.
  • the depth of the instrument may be insufficient to house the conventional bell assembly.
  • a possible solution to this problem is to reduce the depth of each bell but in order to maintain the same musical tone it is then necessary either to increase the diameter of the bell or to make the bell from thinner material.
  • the preferred practical solution is to increase the diameter of the bells as thin bells do not possess the necessary robustness. This however will increase the overall width of the assembly and again, may cause the assembly to occupy an unacceptably large proportion of the interior space of the instrument.
  • the invention provides a telephone bell assembly comprising two bells which are arranged to be struck alternately by a single hammer characterised in that one of the bells is inverted with respect to the other, that the mouths of the bells overlap and that the wall of at least one of the bells is slotted to enable the bells to nest one within the other.
  • the hammer is located between the overlapping portions of the bells.
  • the degree of overlapping of the bells is limited in that the hammer must be able to strike each bell within its limit of travel.
  • the hammer is arranged to strike the inside of the wall of one bell and the outside of the wall of the other bell. This arrangement allows a substantial overlapping of the bells to provide a particularly compact arrangement. It may also permit an easier adjustment of the bell position with respect to the hammer.
  • the telephone bell assembly shown in Figures 1 and 2 comprises two bells 1 and 2, a hammer 3 and an electromagnetic motor unit 4.
  • the bells and motor unit are mounted on a base plate 5, the bells being mounted by pillars 6 and 7.
  • the electromagnetic motor unit comprises an arm 8 connected to an armature 9 which is pivotted on a permanent magnet 10.
  • Two series connected coils 11 and 12 are mounted on either side of the magnet 10 and when connected to an a.c. ringing voltage cause the armature 9 to rock about its pivot as each end is in turn attracted towards the respective coil 11 or 12.
  • the rocking of the armature causes the arm 8 on which the hammer 3 is mounted to swing from side to side thus causing the hammer to alternately strike the bells 1 and 2.
  • the bell 2 is inverted with respect to the bell 1 and is provided with two slots 13 and 14 to enable the depth of the assembly to be reduced by allowing the walls of bell 1 to pass through those of bell 2.
  • the bell 1 is also provided with a slot 15 to allow the arm 8 to pass through the bell so that the hammer 3 can be located between the bells.
  • the bells 1 and 2 may be pressed from steel or brass sheet 0.030 inches thick and have a diameter of 2 inches. Bells of these dimensions and materials produce a tone similar to that of the conventional bell assembly. Different tones may be produced by altering these dimensions.
  • FIG. 3 and 4 An alternative arrangement in which the bells can be overlapped to a greater extent is shown in Figures 3 and 4.
  • the hammer 3 is located between the non-overlapping portions of the bells 1 and 2.
  • the bell 1 is provided with three slots 20, 21 and 22 the slot 20 being provided to enable the arm 8 to pass through the wall of the bell 1 and the slots 21 and 22 being provided to enable the wall of bell 2 to pass through the wall of bell 1. It can be seen that with this arrangement only one of the bells need be slotted. It is necessary with the arrangement shown in Figures 3 and 4 to provide a hole in the base of bell 1 to allow the supporting pillar 7 of bell 2 to pass through bell 1 to the base 5.
  • a bracket attached to the base 5 could carry an arm which supports bell 2 or the bell 2 could be mounted on the body of a telephone instrument with the base 5 subsequently assembled into and mounted on the body so that the bells are located in the desired positions.
  • the arm 8 could be cranked so that it passes over the wall of the bell 1 but the hammer 3 still strikes the walls of the bells.
  • the arm 8 could further be cranked so that the motor 4 is not offset from the bells 1 and 2 thus providing an even more compact assembly.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electromechanical Clocks (AREA)
EP81200809A 1980-07-30 1981-07-15 Sonnerie de téléphone Ceased EP0045539A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8024941 1980-07-30
GB8024941A GB2081486B (en) 1980-07-30 1980-07-30 Telephone bell assembly

Publications (2)

Publication Number Publication Date
EP0045539A2 true EP0045539A2 (fr) 1982-02-10
EP0045539A3 EP0045539A3 (fr) 1982-12-01

Family

ID=10515151

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81200809A Ceased EP0045539A3 (fr) 1980-07-30 1981-07-15 Sonnerie de téléphone

Country Status (8)

Country Link
EP (1) EP0045539A3 (fr)
JP (1) JPS5836919B2 (fr)
AU (1) AU540940B2 (fr)
GB (1) GB2081486B (fr)
IN (1) IN153654B (fr)
NZ (1) NZ197843A (fr)
PT (1) PT73434B (fr)
ZA (1) ZA814374B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0148790A3 (fr) * 1984-01-12 1987-12-16 Mycalex (Motors) Limited Sonnerie téléphonique
ES2128929A1 (es) * 1996-04-19 1999-05-16 D Schulz Bodo Reinhard Conjunto motriz electromecanico y señaliizador acustico provisto de dicho conjunto motriz.

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1697057A (en) * 1925-12-24 1929-01-01 American Telephone & Telegraph Ringer
US2217073A (en) * 1938-01-20 1940-10-08 Associated Electric Lab Inc Signal device
NL71904C (fr) * 1947-06-14
GB885073A (en) * 1959-08-10 1961-12-20 Rotax Ltd Audible warning devices

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0148790A3 (fr) * 1984-01-12 1987-12-16 Mycalex (Motors) Limited Sonnerie téléphonique
ES2128929A1 (es) * 1996-04-19 1999-05-16 D Schulz Bodo Reinhard Conjunto motriz electromecanico y señaliizador acustico provisto de dicho conjunto motriz.

Also Published As

Publication number Publication date
ZA814374B (en) 1983-02-23
JPS5836919B2 (ja) 1983-08-12
AU7343081A (en) 1982-03-04
GB2081486A (en) 1982-02-17
IN153654B (fr) 1984-08-04
AU540940B2 (en) 1984-12-06
GB2081486B (en) 1983-11-02
PT73434A (fr) 1981-08-01
EP0045539A3 (fr) 1982-12-01
PT73434B (fr) 1982-08-19
JPS5756896A (en) 1982-04-05
NZ197843A (en) 1984-03-16

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB LI SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: N.V. PHILIPS' GLOEILAMPENFABRIEKEN

Owner name: PHILIPS ELECTRONIC AND ASSOCIATED INDUSTRIES LIMIT

AK Designated contracting states

Designated state(s): CH DE FR GB LI SE

17P Request for examination filed

Effective date: 19821105

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19841207

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BARNES, HAROLD ERNEST