GB295036A - Improvements in and relating to straight line motion mechanisms - Google Patents

Improvements in and relating to straight line motion mechanisms

Info

Publication number
GB295036A
GB295036A GB22389/28A GB2238928A GB295036A GB 295036 A GB295036 A GB 295036A GB 22389/28 A GB22389/28 A GB 22389/28A GB 2238928 A GB2238928 A GB 2238928A GB 295036 A GB295036 A GB 295036A
Authority
GB
United Kingdom
Prior art keywords
rod
line
radius
straight
straight line
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
GB22389/28A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB295036A publication Critical patent/GB295036A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/30—Power arrangements internal to the switch for operating the driving mechanism using spring motor

Landscapes

  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

295,036. British Thomson-Houston Co., Ltd., (Assignees of Rankin, W. K.). Aug. 4, 1927, [Convention date]. Straight-line motions.-A straight-line motion, suitable for embodiment in the operating mechanism of electric switches, comprises a link 2 pivoted centrally. to a radius-rod 1 and, at one end, to a second radius-rod 3, the free, end 6 being required to trace the straight line 7. The effect is obtained approximately, by. displacing the pivotal connection 9 to one side of the line joining the points 5, 6, so as to compensate for the displacement of the pivot 4 out of the line 7 and for the short radius-rod 3. By this means, in an electric switch, Fig. 1, 'the switch operating rod 28, connected to the, end 6 of the link 2, is raised and lowered without fouling the pivotal support 20 for the radius-lever 21, which is shown extended and connected, through toggles 23, 24 and a crank 26 to an actuating-rod 27. The height of the pivot 10 corresponds approximately to the upper limit position of the point 6.
GB22389/28A 1927-08-04 1928-08-02 Improvements in and relating to straight line motion mechanisms Expired GB295036A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US210653A US1816799A (en) 1927-08-04 1927-08-04 Electric switch

Publications (1)

Publication Number Publication Date
GB295036A true GB295036A (en) 1928-10-11

Family

ID=22783720

Family Applications (2)

Application Number Title Priority Date Filing Date
GB22390/28A Expired GB295037A (en) 1927-08-04 1928-08-02 Improvements in and relating to electric switches
GB22389/28A Expired GB295036A (en) 1927-08-04 1928-08-02 Improvements in and relating to straight line motion mechanisms

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB22390/28A Expired GB295037A (en) 1927-08-04 1928-08-02 Improvements in and relating to electric switches

Country Status (3)

Country Link
US (1) US1816799A (en)
FR (1) FR662128A (en)
GB (2) GB295037A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2473843A (en) * 1945-02-28 1949-06-21 Westinghouse Electric Corp Circuit interrupter

Also Published As

Publication number Publication date
GB295037A (en) 1929-05-30
US1816799A (en) 1931-07-28
FR662128A (en) 1929-08-12

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