US1671965A - Electric switch - Google Patents

Electric switch Download PDF

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Publication number
US1671965A
US1671965A US132715A US13271526A US1671965A US 1671965 A US1671965 A US 1671965A US 132715 A US132715 A US 132715A US 13271526 A US13271526 A US 13271526A US 1671965 A US1671965 A US 1671965A
Authority
US
United States
Prior art keywords
switch
pulley
disc
casing
plate
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 - Lifetime
Application number
US132715A
Other languages
English (en)
Inventor
Brown George Rudston
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority claimed from GB2471026A external-priority patent/GB283268A/en
Application granted granted Critical
Publication of US1671965A publication Critical patent/US1671965A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H17/00—Switches having flexible operating part adapted only for pulling, e.g. cord, chain

Definitions

  • rlhis invention refers to electric switches andrefers to switches of the type in which a cord or the like is utilized vfor operating the switch either tothe on or MTU-position thereof,
  • Fig. 1 is a perspective view ofthe switch
  • Fig. 2 a lsectional elevation; F ig. 3 a broken plan view; Fig. 4 a perspective view with cover for operative spindle and mechanism associated therewith removed and showing one position ot such mechanism; Fig. 5 a View similar toF ig. 4, but with the said mechanism vin another position; and Fig.l 6 a perspectiveviewof cord carrying pulley.' l
  • the casing for the switch may vbeof any suitable pattern and 'constructed of any suitable material. It is preferred to construct it of metal having the two parts 1 and 2 with anges 3 and ⁇ 4 respectively whichmaybe secured together in any desired manner.
  • the part 1 ' has a portion. 5 bent'to form a curved lange1'2 tor a' tube '6 or a pipeor thelike through' Which'electric lead wires may be carried for connection to the electric conductive plates 7 and 8.
  • a support plate 9 with screw-'threaded kopening tor the tube 6 is fitted by screws 13 vto theportion 5 and flanged plate 10, one of the flanges 11- of which abuts the flange 12 of the portion 5 of the lpart 1 of the saidlcasing.
  • the part 2 of y the latter may be provided with a boss 14 to whichv a tube 15 may be attached for lead wires to be carried to the point 'at which electric current is to be supplied.
  • 16 extends Afrom the plate 10 towards the bottom of the element 52 and its oppositeL ends may be secured to the plate 10 and said element 52 by any preferred means; such shield serves thepurpose of preventing contact oit the lead wires within the switch casing with operative mechanism of the switch also within said casing.
  • the movable electric conductive contact platei 17 which is suitably attached to the arcuately movable element 18 having extension 19 to which one end of the coil spring 2O is attached, the other end of said spring being attached to the element 52.
  • the element 18 also has an extension 21 to which one end of the link rod y22 is pivotally connected; the other end of such rod 22 is pivotally connected to one end of an- A shield d other link rodL 23whose other end is attached by suitable means to the arcuately movable member 24.
  • yThe element 18 and the member-24 are turnableon spindles carried by the switch casing. *The part 1' of thelatter has Van opening in onesidethereof to permit the member ⁇ 24 to* partly project therethrough. f
  • the casing 25 Exteriorly of the switch casing and adapted to be detachably attached to one side vof 'the part ⁇ l "of lsuchy casing is the casing 25 open at one end.
  • the latter casing may be attached to the saidfpart 1 by means of the bolts 26 and butterfly nuts 27.
  • the other end of the casing 25 has an opening therein and fitting such lopening is the boss of a crank disc 28.
  • the plate 29, also the bos'sed disc 30 is about the said opening in they casing 25 and securedto the end o'f the 'said casing in which is said opening.
  • the latter has projectingv from oneace thereof a stop 31.
  • the plate 29 is a bearing opening for one end of the rotatable spindle 32, such spindle l also having the' screw-threaded portion y33 whereby -the crank disc 28 is attachable rFixedto the-latter by a split pinl or otherwise i-sthe disc 39 having projecting fingers 40and 41 arrangedat 180O apart and loosely mounted von the spindle 32 is the pulley 42 to which one end of an operating cord 43 or the like is attachable; for this purpose the l pulley 42 may be notched as at 44 and the cord secured in such notches and thereafter carried around the boss 45 o thepulley.
  • Aiiixed to the pulley 42 is the plate 36 havl p ing a projecting tooth 47; the pulley 42 also carries a projecting lug 48.
  • the loose end of the cord 43 may be allowed to extend yany suitable distance from the pulley 42.
  • the coilL spring 49vone end of which is attached to the plate 29, casing-25, and the disc v30, and cthe other end thereof to the pulley 42 and pla-te 46; such spring 49 .is adapted ⁇ to keep the pulley 42 in propernrelation with the disc 39 whereby the tooth 47 oi' the plate 46 mayengage with thc fingers'40 and 4 1 of such disc 39 and also to permit automatic reverse rotation of the pulley 42.
  • ,Stops l50 and l in the switch casing are providedl for the link l p.
  • the ⁇ springkl automatically returns the pulley 42 to .normal position by reversely rotating it ⁇ u ntil its motion is stopped by vthe Othersid@ of .the ,Stop 48 meeting the other .side ofthe stop 31 .Of .the bossed v.disc 30 and the tooth 47 slidingpast cit-her the finger 40 or the linger 4].
  • vthe disc 3 9 to return ,to normal position, whereby it will b e ready for re-engagement with the linger 40 or the finger 41 depending upon the position yof such fingers.
  • vThe disc 39 in every movement thereof :by the pulley 42 receives a part. rotation of 180o; said movement ol. the disc 39 being etlectedin one ,case by the tooth 47 ,engaging with the linger 40 and in the other case by such tooth :engaging with the linger 4 1.
  • An electric .switch in vwhich the ,operating mechanism comprises a yspindle .supported in Secondary ,casing det-,acliablysecured to Ithe main switch ,Casing kSaid .spindle havingat one nend a ⁇ crank pin which engages ya slotted handle of the switch, a'cord operated pulley loosely mounted uponthe said spindle and provided 5with a .projection or lingel.' .which lengages when .the .pulley is rotated in one direct-ion, with one or .other oi tWO 4Similar projections or ylingers ,on a l.disc
  • the switch mechanism comprises .two rotatable members mounted within vthe switch casing, ,to one oi' which is secured a frame engaging with the crank pin of .the switch operating mechanism, while the other ac tuates the contact member, arms on the said rotatable members being connected by a. ⁇ link whereby the ⁇ .switch yarm is operated, a spring coacting with the .said switch to give a quicl:r ,action thereto.

Landscapes

  • Harvester Elements (AREA)
  • Mechanisms For Operating Contacts (AREA)
US132715A 1925-10-02 1926-08-31 Electric switch Expired - Lifetime US1671965A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU1671965X 1925-10-02
GB2471026A GB283268A (en) 1926-10-05 1926-10-05 Improvements in electric switches

Publications (1)

Publication Number Publication Date
US1671965A true US1671965A (en) 1928-06-05

Family

ID=25646897

Family Applications (1)

Application Number Title Priority Date Filing Date
US132715A Expired - Lifetime US1671965A (en) 1925-10-02 1926-08-31 Electric switch

Country Status (4)

Country Link
US (1) US1671965A (de)
BE (1) BE338762A (de)
DE (1) DE468986C (de)
FR (1) FR626223A (de)

Also Published As

Publication number Publication date
BE338762A (de)
FR626223A (fr) 1927-09-01
DE468986C (de) 1928-12-04

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