GB710452A - Improvements in and relating to electric switches - Google Patents

Improvements in and relating to electric switches

Info

Publication number
GB710452A
GB710452A GB411452A GB411452A GB710452A GB 710452 A GB710452 A GB 710452A GB 411452 A GB411452 A GB 411452A GB 411452 A GB411452 A GB 411452A GB 710452 A GB710452 A GB 710452A
Authority
GB
United Kingdom
Prior art keywords
spindle
knob
spring
groove
engages
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
GB411452A
Inventor
Raymond Henry Boardman
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.)
DIAMOND H SWITCHES Ltd
Original Assignee
DIAMOND H SWITCHES 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 DIAMOND H SWITCHES Ltd filed Critical DIAMOND H SWITCHES Ltd
Priority to GB411452A priority Critical patent/GB710452A/en
Publication of GB710452A publication Critical patent/GB710452A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/04—Cases; Covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/10—Movable parts; Contacts mounted thereon
    • H01H19/14—Operating parts, e.g. turn knob

Abstract

710,452. Securing knobs on shafts. DIAMOND H SWITCHES, Ltd. (Boardman, R. H.). Feb. 15, 1952, No. 4114/52. Class 80 (2) [Also in Groups XXV and XXXVII] A manual operating knob 62 is moulded with a recess 64 having a projection to engage a groove 46 in a spindle 40 to prevent relative rotation. The knob is frictionally held on the spindle by a spring 70 which engages another groove 46 in the spindle and is cranked at 76 so as to abut the cover, so that when the knob is removed from the shaft the spiring remains in position on the shaft. A looped portion 74 of the springs engages in a recess 44 in a cam assembly 38 to prevent displacement of the spring when the knob is pushed on to the spindle. In a modification, Fig. 5 (not shown), in which the spindle is seperate from the cam assembly, the inner end of the spring engages a groove in the spindle to prevent withdrawal of the spindle when the knob is removed.
GB411452A 1952-02-15 1952-02-15 Improvements in and relating to electric switches Expired GB710452A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB411452A GB710452A (en) 1952-02-15 1952-02-15 Improvements in and relating to electric switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB411452A GB710452A (en) 1952-02-15 1952-02-15 Improvements in and relating to electric switches

Publications (1)

Publication Number Publication Date
GB710452A true GB710452A (en) 1954-06-09

Family

ID=9771039

Family Applications (1)

Application Number Title Priority Date Filing Date
GB411452A Expired GB710452A (en) 1952-02-15 1952-02-15 Improvements in and relating to electric switches

Country Status (1)

Country Link
GB (1) GB710452A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3054872A (en) * 1958-11-28 1962-09-18 Ward Leonard Electric Co Electrical contactor
CN105074605A (en) * 2013-02-19 2015-11-18 法国大陆汽车公司 Control device having pull-out resistance

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3054872A (en) * 1958-11-28 1962-09-18 Ward Leonard Electric Co Electrical contactor
CN105074605A (en) * 2013-02-19 2015-11-18 法国大陆汽车公司 Control device having pull-out resistance
US20150355668A1 (en) * 2013-02-19 2015-12-10 Continental Automotive France Control device having pull-out resistance

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