GB1058902A - Electric switch manufacture - Google Patents

Electric switch manufacture

Info

Publication number
GB1058902A
GB1058902A GB1749363A GB1749363A GB1058902A GB 1058902 A GB1058902 A GB 1058902A GB 1749363 A GB1749363 A GB 1749363A GB 1749363 A GB1749363 A GB 1749363A GB 1058902 A GB1058902 A GB 1058902A
Authority
GB
United Kingdom
Prior art keywords
switch
plunger
projection
base
contact
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
GB1749363A
Inventor
John Robert Ashman
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.)
DOWTY ELECTRICS Ltd
Original Assignee
DOWTY ELECTRICS 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 DOWTY ELECTRICS Ltd filed Critical DOWTY ELECTRICS Ltd
Priority to GB1749363A priority Critical patent/GB1058902A/en
Publication of GB1058902A publication Critical patent/GB1058902A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/04—Cases; Covers
    • H01H13/06—Dustproof, splashproof, drip-proof, waterproof or flameproof casings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • H01H13/18—Operating parts, e.g. push-button adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift

Landscapes

  • Manufacture Of Switches (AREA)

Abstract

1,058,902. Retractive switches; switch cases. DOWTY ELECTRICS Ltd. July 31, 1964 [May 3, 1963 (2)], Nos. 17493/63 and 17494/63. Heading H2B. A method of switch adjustment to facilitate switch operation by a predetermined movement of the switch plunger after assembly is provided for by the switch-actuating projection 44 of the plunger assembly being a screw located in a bore of a plunger 40 operated by depression of a plunger 42. Springs make the plunger 42 retractive and allow for overtravel movement. Projection 44 operates a switch actuating lever 25 of a snap-action mechanism which is initially adjustable by appropriate bending of the fixed contact strips 35, 36 and rotation of an adjustable stop 31 to alter the contact pressures between movable contact 28 and the fixed contacts 35, 36. The metal cover 1 and base 2 are maintained in contact by abutment 55 of the cover 1, during adjustment of projection 44, and are soldered together when all adjustments have been made. Inert gas may fill the interior. The terminal posts 13, 14, 15 are enclosed by an insulating moulding 47 riveted to the cover 1, and a cold setting resin 51 fills the space between moulding 47 and base 2. The switch is mounted by bolts through transverse tubes 50 on the base 2.
GB1749363A 1963-05-03 1963-05-03 Electric switch manufacture Expired GB1058902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1749363A GB1058902A (en) 1963-05-03 1963-05-03 Electric switch manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1749363A GB1058902A (en) 1963-05-03 1963-05-03 Electric switch manufacture

Publications (1)

Publication Number Publication Date
GB1058902A true GB1058902A (en) 1967-02-15

Family

ID=10096136

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1749363A Expired GB1058902A (en) 1963-05-03 1963-05-03 Electric switch manufacture

Country Status (1)

Country Link
GB (1) GB1058902A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2463974A1 (en) * 1979-08-17 1981-02-27 Landis Gyr Vandal proof telephone pushbutton keyboard - has pushbutton inner portion telescoping into outer portion to limit pressure applied to switch contacts

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2463974A1 (en) * 1979-08-17 1981-02-27 Landis Gyr Vandal proof telephone pushbutton keyboard - has pushbutton inner portion telescoping into outer portion to limit pressure applied to switch contacts

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