GB734490A - Improvements in and relating to the adjustment of electrical contact springs - Google Patents

Improvements in and relating to the adjustment of electrical contact springs

Info

Publication number
GB734490A
GB734490A GB5740/51A GB574051A GB734490A GB 734490 A GB734490 A GB 734490A GB 5740/51 A GB5740/51 A GB 5740/51A GB 574051 A GB574051 A GB 574051A GB 734490 A GB734490 A GB 734490A
Authority
GB
United Kingdom
Prior art keywords
frame
stud
bending
shaft
springs
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
GB5740/51A
Inventor
Malcom Simons
Frederick Emil Rommel
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.)
Telephone Manufacturing Co Ltd
Original Assignee
Telephone Manufacturing 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
Priority to BE509565D priority Critical patent/BE509565A/xx
Application filed by Telephone Manufacturing Co Ltd filed Critical Telephone Manufacturing Co Ltd
Priority to GB5740/51A priority patent/GB734490A/en
Priority to US274544A priority patent/US2750982A/en
Publication of GB734490A publication Critical patent/GB734490A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q1/00—Details of selecting apparatus or arrangements
    • H04Q1/18—Electrical details
    • H04Q1/20—Testing circuits or apparatus; Circuits or apparatus for detecting, indicating, or signalling faults or troubles
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

734,490. Angular bending. TELEPHONE MANUFACTURING CO., Ltd. Feb. 22, 1952 [March 9, 1951], No. 5740/51. Classes 83 (2) and 83 (4). An electric contact spring is adjusted by bending it in one direction past its elastic limit, bending it in the opposite direction past its elastic limit, and continuing such bending in alternate directions with decreasing amplitude until the elastic limit is no longer exceeded. In a machine for making the adjustments automatically a relay spring-set 14 having springs 13 is clamped to a datum surface 10a and the tips of the springs are received in apertures in a setting plate 12 held in a reciprocable frame 11. A shaft 25, manually or power driven, drives an adjustable-throw' crank 27 which oscillates a shaft 36 carrying 'a forked member 35. The oscillation of the forked member drives, through a stud 43 and a coupling lever 40 pivoted at 41, one of four links 19 connected to the frame 11 to thereby cause the frame to oscillate. The stud 43 engages a slot 40a in the lever 40 and enters the fork of the member 35, the amplitude of oscillation of the frame 11 depending on the distance between the centres of the shaft 36 and the stud 43. A rod 44 carrying the stud 43 is therefore pivoted in a slide-plate 46, and on rotation of the shaft 25 a cam 24 is slowly rotated to move the slide 46 and thereby the pin 43 so that the amplitude of oscillation of the links 19 and frame 11 is slowly decreased until the stud reaches a point on or near the axis of the shaft 36 when the frame ceases to oscillate. The bending may also cause the springs to be work-hardened. Specification 728,891, [Group XXXVII], is referred to.
GB5740/51A 1951-03-09 1951-03-09 Improvements in and relating to the adjustment of electrical contact springs Expired GB734490A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE509565D BE509565A (en) 1951-03-09
GB5740/51A GB734490A (en) 1951-03-09 1951-03-09 Improvements in and relating to the adjustment of electrical contact springs
US274544A US2750982A (en) 1951-03-09 1952-03-03 Apparatus for adjusting electrical contacts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5740/51A GB734490A (en) 1951-03-09 1951-03-09 Improvements in and relating to the adjustment of electrical contact springs

Publications (1)

Publication Number Publication Date
GB734490A true GB734490A (en) 1955-08-03

Family

ID=9801756

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5740/51A Expired GB734490A (en) 1951-03-09 1951-03-09 Improvements in and relating to the adjustment of electrical contact springs

Country Status (3)

Country Link
US (1) US2750982A (en)
BE (1) BE509565A (en)
GB (1) GB734490A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107622913A (en) * 2017-10-17 2018-01-23 三友联众集团股份有限公司 A kind of adjustment mechanism for relay spring
CN108447736A (en) * 2018-03-26 2018-08-24 三友联众集团股份有限公司 A kind of automatic adjusting machine for relay

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9149852B2 (en) 2013-03-14 2015-10-06 M.I.C. Industries, Inc. Panel crimping machine with control system for controlling timing between crimping rollers with an adjustable separation

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1336543A (en) * 1916-05-19 1920-04-13 Western Electric Co Testing-machine
US2251967A (en) * 1936-08-05 1941-08-12 Carl M Yoder Machine for and process of forming structural members
US2389885A (en) * 1942-09-09 1945-11-27 Bristol Company Method and apparatus for straightening blanks
GB611949A (en) * 1946-05-14 1948-11-05 Ferranti Ltd Improvements relating to the truing of small gear-wheels
US2609858A (en) * 1948-12-30 1952-09-09 Rca Corp Lead straightening machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107622913A (en) * 2017-10-17 2018-01-23 三友联众集团股份有限公司 A kind of adjustment mechanism for relay spring
CN107622913B (en) * 2017-10-17 2019-07-16 三友联众集团股份有限公司 A kind of adjustment mechanism for relay spring
CN108447736A (en) * 2018-03-26 2018-08-24 三友联众集团股份有限公司 A kind of automatic adjusting machine for relay

Also Published As

Publication number Publication date
BE509565A (en)
US2750982A (en) 1956-06-19

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