GB989428A - Safety fuse for electro-magnetically wound apparatus - Google Patents

Safety fuse for electro-magnetically wound apparatus

Info

Publication number
GB989428A
GB989428A GB168662A GB168662A GB989428A GB 989428 A GB989428 A GB 989428A GB 168662 A GB168662 A GB 168662A GB 168662 A GB168662 A GB 168662A GB 989428 A GB989428 A GB 989428A
Authority
GB
United Kingdom
Prior art keywords
rivet
magnet
spring
electro
core
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
GB168662A
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.)
Kienzle Uhrenfabriken GmbH
Original Assignee
Kienzle Uhrenfabriken GmbH
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 Kienzle Uhrenfabriken GmbH filed Critical Kienzle Uhrenfabriken GmbH
Publication of GB989428A publication Critical patent/GB989428A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C1/00—Winding mechanical clocks electrically
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/44—Magnetic coils or windings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material
    • H01H37/761—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit
    • H01H2037/762—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit using a spring for opening the circuit when the fusible element melts
    • H01H2037/763—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material with a fusible element forming part of the switched circuit using a spring for opening the circuit when the fusible element melts the spring being a blade spring

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Fuses (AREA)
  • Electromagnets (AREA)

Abstract

989,428. Fusible cut-outs. KIENZLE UHRENFABRIKEN A.G. Jan. 17, 1962 [Nov. 8, 1961], No. 1686/62. Heading H2G. An electric fuse for electromagneticallywound mechanisms consists of a rivet 6, made of low melting-point metal and subjected to shear stress by a spring 7. The leaf spring 7 connects a voltage source to the outer coil of a magnet 8 via the rivet 6, which is thermally connected to, but electrically insulated from, the core of the magnet 8 through a plate 9. If a permanent current flows through the magnet circuit (Fig. 1, not shown), the core is heated and hence the rivet material softened, when spring 7 shears off the rivet 6 and pivots about the bend 10 to break the circuit.
GB168662A 1961-11-08 1962-01-17 Safety fuse for electro-magnetically wound apparatus Expired GB989428A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK45153A DE1184407B (en) 1961-11-08 1961-11-08 Safety fuse on electromagnetically wound clocks and drives

Publications (1)

Publication Number Publication Date
GB989428A true GB989428A (en) 1965-04-14

Family

ID=7223742

Family Applications (1)

Application Number Title Priority Date Filing Date
GB168662A Expired GB989428A (en) 1961-11-08 1962-01-17 Safety fuse for electro-magnetically wound apparatus

Country Status (2)

Country Link
DE (1) DE1184407B (en)
GB (1) GB989428A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0352771A2 (en) * 1988-07-28 1990-01-31 Siemens Aktiengesellschaft Fuse with a spring arm
US9496112B2 (en) 2011-06-30 2016-11-15 Epcos Ag Electric device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5982270A (en) * 1998-12-03 1999-11-09 Shop Vac Corporation Thermal fuse
DE102006040661A1 (en) * 2006-08-30 2008-03-13 Robert Bosch Gmbh Current overload protection of a brush apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0352771A2 (en) * 1988-07-28 1990-01-31 Siemens Aktiengesellschaft Fuse with a spring arm
EP0352771A3 (en) * 1988-07-28 1991-11-13 Siemens Aktiengesellschaft Fuse with a spring arm
US9496112B2 (en) 2011-06-30 2016-11-15 Epcos Ag Electric device

Also Published As

Publication number Publication date
DE1184407B (en) 1964-12-31

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