GB627187A - Improvements to driving mechanisms for rotary switches - Google Patents

Improvements to driving mechanisms for rotary switches

Info

Publication number
GB627187A
GB627187A GB21020/47A GB2102047A GB627187A GB 627187 A GB627187 A GB 627187A GB 21020/47 A GB21020/47 A GB 21020/47A GB 2102047 A GB2102047 A GB 2102047A GB 627187 A GB627187 A GB 627187A
Authority
GB
United Kingdom
Prior art keywords
armature
contacts
pawl
energized
tooth
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
GB21020/47A
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 GB627187A publication Critical patent/GB627187A/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
    • H01H63/20—Driving arrangements for multi-position wipers with step-by-step motion of wiper to a selector position using stepping magnet and ratchet

Landscapes

  • Reciprocating, Oscillating Or Vibrating Motors (AREA)

Abstract

627,187. Electromagnetic interrupters. STANDARD TELEPHONES & CABLES, Ltd. Aug. 1, 1947, No. 21020. Convention date, July 24, 1945. [Class 38(v)] In an electromagnetic step-by-step switch with self-interrupter contacts suitable for use in automatic telephones, the driving electromagnet 27 has a main armature 10 which drives the pawl-and-ratchet mechanism 8, 4 and is coupled by a lost motion device to an auxiliary armature 22 which controls the interrupter contacts 20, 19. With the parts in the position shown the contacts 20, 19 are closed and the magnet 27 energized. The armature 10 moves up the pawl 8 slipping over one tooth of the ratchet wheel and a rod 12 being raised against the action of a spring 18 till, near the end of the stroke a shoulder 43 on the rod engages the auxiliary armature 22 and allows spring contact 20 to separate from contact 19. The electromagnet being now de-energized, armature 10 drops, the ratchet wheel is rotated one tooth and at the end of the stroke nut 23 engages armature 22 to move it back to the position shown in which the contacts are again closed.
GB21020/47A 1945-07-24 1947-08-01 Improvements to driving mechanisms for rotary switches Expired GB627187A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR627187X 1945-07-24

Publications (1)

Publication Number Publication Date
GB627187A true GB627187A (en) 1949-08-02

Family

ID=8988867

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21020/47A Expired GB627187A (en) 1945-07-24 1947-08-01 Improvements to driving mechanisms for rotary switches

Country Status (1)

Country Link
GB (1) GB627187A (en)

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