GB545757A - Improvements in or relating to instrument type relays - Google Patents

Improvements in or relating to instrument type relays

Info

Publication number
GB545757A
GB545757A GB11958/41A GB1195841A GB545757A GB 545757 A GB545757 A GB 545757A GB 11958/41 A GB11958/41 A GB 11958/41A GB 1195841 A GB1195841 A GB 1195841A GB 545757 A GB545757 A GB 545757A
Authority
GB
United Kingdom
Prior art keywords
magnetic
contacts
approach
relating
type relays
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
GB11958/41A
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.)
Sangamo Weston Ltd
Atos Origin IT Services Inc
Original Assignee
Sangamo Weston Ltd
Sangamo Weston Inc
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 Sangamo Weston Ltd, Sangamo Weston Inc filed Critical Sangamo Weston Ltd
Publication of GB545757A publication Critical patent/GB545757A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Treatment Devices (AREA)

Abstract

545,757. Electromagnetic relays. SANGAMO WESTON, Ltd. Sept. 18, 1941, No. 11958. Convention date, March 1, 1941, [Class 38 (v)] Instrument-type relays in which a good contact is produced by magnetic attraction between the co-operating contacts, have a layer of non-magnetic but conductive material arranged on one or both contacts to prevent too close an approach of the magnetic parts so that the relay may operate to separate the contacts by the ordinary forces which tend to move the needle 3 when the current varies suitably. Fig. 8 shows one form in which both magnetic contacts have non-magnetic material associated with them. The non-magnetic screw 19 is moreover adjustable to vary the distance to which the magnetic parts can approach.
GB11958/41A 1941-03-01 1941-09-18 Improvements in or relating to instrument type relays Expired GB545757A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US545757XA 1941-03-01 1941-03-01

Publications (1)

Publication Number Publication Date
GB545757A true GB545757A (en) 1942-06-10

Family

ID=21992046

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11958/41A Expired GB545757A (en) 1941-03-01 1941-09-18 Improvements in or relating to instrument type relays

Country Status (1)

Country Link
GB (1) GB545757A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2598847A (en) * 1944-04-21 1952-06-03 Sangamo Electric Co Instrument type switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2598847A (en) * 1944-04-21 1952-06-03 Sangamo Electric Co Instrument type switch

Similar Documents

Publication Publication Date Title
GB457540A (en) Improvements in or relating to electromagnetic light-current relays
GB669932A (en) Improvements in float-operated electric switches
GB545442A (en) Improvement in electromagnetic interrupters
GB559453A (en) Improvements relating to magnetically operated electrical switches
GB543189A (en) Improvements in and connected with contact mechanism for automatic circuit breakers and similar electrical switchgear
GB543008A (en) Improvements in or relating to electromagnetic relays with mercury contacts
GB545757A (en) Improvements in or relating to instrument type relays
GB578134A (en) Improvements in or relating to electro-magnetic switches
GB787072A (en) Improvements relating to electro-magnetic switches
GB582536A (en) Improvements in or relating to electromagnetic relays
GB482918A (en) Improvements in electrical contacts for relays
GB1056324A (en) Improvements in sealed magnetic reed contact units
GB546404A (en) Improvements in or relating to electromagnetic switches
GB424795A (en) Improvements in or relating to electromagnetic relays
GB602369A (en) Improvements in or relating to electrical contact spring sets suitable for use on electro-magnetic relays
GB602371A (en) Improvements in or relating to contact spring assemblies for electrical switching devices
GB568457A (en) Improvements in or relating to instrument type electrical relays
GB584050A (en) Improvements in or relating to electromagnetic switches and relays
GB515630A (en) Improvements in and relating to circuit control arrangements of electro-magnetic switches
GB478110A (en) Improvements in or relating to electrical relays
GB488502A (en) Improvements relating to electrically-maintained vibrating bodies
GB630531A (en) Improvements in or relating to instrument type relays
GB582817A (en) Improvements relating to the contacts of electrical switches
GB601004A (en) Improvements relating to magnetically-operated sealed-container switches
GB451817A (en) Improvements in methods of measuring the magnitude of the force of gravity