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GB883588A - Improvements in a.c. operated electro-mechanical devices - Google Patents

Improvements in a.c. operated electro-mechanical devices

Info

Publication number
GB883588A
GB883588A GB3058557A GB3058557A GB883588A GB 883588 A GB883588 A GB 883588A GB 3058557 A GB3058557 A GB 3058557A GB 3058557 A GB3058557 A GB 3058557A GB 883588 A GB883588 A GB 883588A
Authority
GB
United Kingdom
Prior art keywords
mechanical devices
harvey
sept
electromagnet
operated electro
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
GB3058557A
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.)
HARVEY ELECTRONICS Ltd
Original Assignee
HARVEY ELECTRONICS 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 HARVEY ELECTRONICS Ltd filed Critical HARVEY ELECTRONICS Ltd
Priority to GB3058557A priority Critical patent/GB883588A/en
Priority to DE1958H0029572 priority patent/DE1778687U/en
Publication of GB883588A publication Critical patent/GB883588A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/10—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current
    • H01F7/12—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current having anti-chattering arrangements
    • H01F7/1205—Electromagnets; Actuators including electromagnets with armatures specially adapted for alternating current having anti-chattering arrangements having short-circuited conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/30—Electromagnetic relays specially adapted for actuation by AC

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Reciprocating Pumps (AREA)
  • Adjustable Resistors (AREA)
  • Lock And Its Accessories (AREA)

Abstract

883,588. Electromagnets. HARVEY ELECTRONICS Ltd., and HARVEY, J. P. Sept. 15, 1958 [Sept. 30, 1957], No. 30585/57. Class 35. An A.C. plungertype electromagnet has a magnetic stop member 4 with a copper shading ring 15 and a coaxial hole 16 or circular recess which is said to increase the pull and reduce chattering. The plunger 7 slides in a non-ferrous sleeve 6 which is tapered at one end 13 to secure it to the stop. The electromagnet has a U- shaped iron frame 1 closed by an end plate, not shown.
GB3058557A 1957-09-30 1957-09-30 Improvements in a.c. operated electro-mechanical devices Expired GB883588A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3058557A GB883588A (en) 1957-09-30 1957-09-30 Improvements in a.c. operated electro-mechanical devices
DE1958H0029572 DE1778687U (en) 1957-09-30 1958-09-27 AC RELAY.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3058557A GB883588A (en) 1957-09-30 1957-09-30 Improvements in a.c. operated electro-mechanical devices

Publications (1)

Publication Number Publication Date
GB883588A true GB883588A (en) 1961-11-29

Family

ID=10309942

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3058557A Expired GB883588A (en) 1957-09-30 1957-09-30 Improvements in a.c. operated electro-mechanical devices

Country Status (2)

Country Link
DE (1) DE1778687U (en)
GB (1) GB883588A (en)

Also Published As

Publication number Publication date
DE1778687U (en) 1958-12-04

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