GB511539A - Improvements relating to snap mechanisms - Google Patents

Improvements relating to snap mechanisms

Info

Publication number
GB511539A
GB511539A GB5467/38A GB546738A GB511539A GB 511539 A GB511539 A GB 511539A GB 5467/38 A GB5467/38 A GB 5467/38A GB 546738 A GB546738 A GB 546738A GB 511539 A GB511539 A GB 511539A
Authority
GB
United Kingdom
Prior art keywords
spring
springs
leaf
switch
abutment
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
GB5467/38A
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.)
Micro Switch Corp
Original Assignee
Micro Switch Corp
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 Micro Switch Corp filed Critical Micro Switch Corp
Publication of GB511539A publication Critical patent/GB511539A/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
    • H01H13/26—Snap-action arrangements depending upon deformation of elastic members
    • H01H13/36—Snap-action arrangements depending upon deformation of elastic members using flexing of blade springs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/18—Mechanical movements
    • Y10T74/18888—Reciprocating to or from oscillating
    • Y10T74/18896—Snap action
    • Y10T74/18904—Plate spring

Abstract

511,539. Metallic springs for switches. MICRO SWITCH CORPORATION. Feb. 21, 1938, No. 5467. Convention date, Feb. 20, 1937, [Class 108 (iii)] [Also in Group XXXVII] In a snap-action mechanism which includes a flat thin leaf spring, bowed under compression, the pivotal end of the spring is made substantially square to the length and seats in an angle of less than 180 degrees in a groove formed in a support for the spring. As applied to a snap action switch, a leaf spring 8 secured to a terminal 11 is placed under tension by two leaf springs 9 attached to the free end of the spring 8 and placed under compression by being seated in a recess 13 of an abutment 12. The springs 8, 9 are stamped from a sheet of beryllium copper 8.5 thousandths of an inch thick and the moving contact 7 is formed by folding a strip of silver over the free end of the leaf springs. The switch is operated by a plunger 14 which depresses the spring 8 below the pivot axis of the springs 9. The ends of the springs 9 have squared ends and pivot in a recess 13 in the abutment 12, Figs. 5, 6 show different abutments, the line of thrust of the spring acting in the direction of the line 21. Lateral movement along the recesses 13 is prevented by stops. Specification 419,917, [Group XXXVII], is referred to.
GB5467/38A 1937-02-20 1938-02-21 Improvements relating to snap mechanisms Expired GB511539A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US126789A US2182856A (en) 1937-02-20 1937-02-20 Compression spring support

Publications (1)

Publication Number Publication Date
GB511539A true GB511539A (en) 1939-08-21

Family

ID=22426663

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5467/38A Expired GB511539A (en) 1937-02-20 1938-02-21 Improvements relating to snap mechanisms

Country Status (2)

Country Link
US (1) US2182856A (en)
GB (1) GB511539A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2476056A (en) * 1946-07-03 1949-07-12 First Ind Corp Snap action device
US2600564A (en) * 1947-11-17 1952-06-17 Honeywell Regulator Co Snap action device
US2540082A (en) * 1948-04-08 1951-02-06 Johan M Andersen Temperature controlled latch
US2892908A (en) * 1956-12-24 1959-06-30 Gen Motors Corp Electric switch
US4054051A (en) * 1976-06-16 1977-10-18 Cutler-Hammer, Inc. Thermostatic control
US4209677A (en) * 1979-03-15 1980-06-24 Eaton Corporation Precision snap switch with improved one piece contact support and terminal member
US4652706A (en) * 1986-01-29 1987-03-24 Tower Manufacturing Corporation Double pole switch construction
US5003140A (en) * 1989-06-26 1991-03-26 International Business Machines Corporation Long keybutton stabilizer
US5302789A (en) * 1990-10-29 1994-04-12 Westport Development & Manufacturing Company, Inc. Snap switch having low resistance
EP2111627A4 (en) * 2007-01-10 2013-08-21 Craig R Wildman Pressure differential switch

Also Published As

Publication number Publication date
US2182856A (en) 1939-12-12

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