GB653664A - A combined drive and clutch particularly for a selector switch - Google Patents

A combined drive and clutch particularly for a selector switch

Info

Publication number
GB653664A
GB653664A GB13793/48A GB1379348A GB653664A GB 653664 A GB653664 A GB 653664A GB 13793/48 A GB13793/48 A GB 13793/48A GB 1379348 A GB1379348 A GB 1379348A GB 653664 A GB653664 A GB 653664A
Authority
GB
United Kingdom
Prior art keywords
rack
pinions
lever
arms
rollers
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
GB13793/48A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB653664A publication Critical patent/GB653664A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H63/00—Details of electrically-operated selector switches
    • H01H63/16—Driving arrangements for multi-position wipers
    • H01H63/18—Driving arrangements for multi-position wipers with step-by-step motion of wiper to a selector position
    • H01H63/22—Driving arrangements for multi-position wipers with step-by-step motion of wiper to a selector position using step-by-step electromagnetic drive without ratchet, e.g. self-interrupting driving magnet

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Gear Transmission (AREA)

Abstract

653,664. Actuation of switches. STANDARD TELEPHONES & CABLES, Ltd. May 21, 1948, No. 13793. Convention date, Aug. 26, 1947. [Class 38(v)] [Also in Groups XXIV and XXXIX] In an electric selector switch a twoedged rack carrying a brush carriage is reciprocated by a pair of pinions which drive the rack in turn and which are changed over from driving to idle at the end of the travel in each direction. Pinions 7, 8, Fig. 1, are mounted on arms 12, 13, of a lever 9 which is rotatably mounted on a bushing 10 so that only one pinion may mesh with the rack 18 at any one time, and the lever 9 is thrown over from one position to the other by rollers 24, 27 engaging ramps 26, 28. The lever is located during travel by a sprung ball 16 in indentations 15 in the end of the lever. In a second embodiment, Figs. 4, 5 and 6 (not shown), the driving pinion is latched into mesh with the rack during driving and is sprung out of engagement by flexible ramps on the ends of the rack when the rack reaches the limit of its travel. A further embodiment, Figs. 7 and 8, includes two flexible toothed wheels 206a, 206b which are meshed alternately with toothed wheels 207a, 208a, on the shafts carrying the pinions 207, 208, by means of rollers 233, 235 on arms 232, 234 projecting from a pivoted yoke 221. The yoke is moved: to shift the rollers by ramps 226, 228 at the ends of the rack acting on its arms 231. The Specification as open to inspection under Sect. 91 comprises also an embodiment, Fig. 13 (Cancelled), in which two pinions 307a and 308a permanently meshed with the rack are alternately driven from a single toothed wheel 306 through dog clutches 337. This subject-matter does not appear in the Specification as accepted.
GB13793/48A 1947-08-26 1948-05-21 A combined drive and clutch particularly for a selector switch Expired GB653664A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US653664XA 1947-08-26 1947-08-26

Publications (1)

Publication Number Publication Date
GB653664A true GB653664A (en) 1951-05-23

Family

ID=22062211

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13793/48A Expired GB653664A (en) 1947-08-26 1948-05-21 A combined drive and clutch particularly for a selector switch

Country Status (1)

Country Link
GB (1) GB653664A (en)

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