GB349180A - Improvements in or relating to electro-magnetic step-by-step switches - Google Patents

Improvements in or relating to electro-magnetic step-by-step switches

Info

Publication number
GB349180A
GB349180A GB802730A GB802730A GB349180A GB 349180 A GB349180 A GB 349180A GB 802730 A GB802730 A GB 802730A GB 802730 A GB802730 A GB 802730A GB 349180 A GB349180 A GB 349180A
Authority
GB
United Kingdom
Prior art keywords
electro
relating
coventry
switches
fulcrum
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
GB802730A
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.)
COVENTRY AUTOM TELEPHONES Ltd
Original Assignee
COVENTRY AUTOM TELEPHONES 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 COVENTRY AUTOM TELEPHONES Ltd filed Critical COVENTRY AUTOM TELEPHONES Ltd
Priority to GB802730A priority Critical patent/GB349180A/en
Publication of GB349180A publication Critical patent/GB349180A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H67/00—Electrically-operated selector switches
    • H01H67/02—Multi-position wiper switches
    • H01H67/04—Multi-position wiper switches having wipers movable only in one direction for purpose of selection
    • H01H67/06—Rotary switches, i.e. having angularly movable wipers

Landscapes

  • Impact Printers (AREA)

Abstract

349,180. Automatic exchange switches. COVENTRY AUTOMATIC TELEPHONES, Ltd. and PUCKETTE, C. C., of General Electric Co., Stoke, Coventry. March 12, 1930, No. 8027. [Class 40 (iv).] The magnet armature 5 of a ratchet-driven switch has a knife-edge fulcrum 6 which is mounted by means of slots 9 so as to permit horizontal and angular adjustment. The fulcrum is secured to a support member 12 which also carries the magnet coil 11 (partly surrounding it), the core 10, and the interrupter springs 14. The armature is controlled by a helical spring 15 engaging with a wire hook 16.
GB802730A 1930-03-12 1930-03-12 Improvements in or relating to electro-magnetic step-by-step switches Expired GB349180A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB802730A GB349180A (en) 1930-03-12 1930-03-12 Improvements in or relating to electro-magnetic step-by-step switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB802730A GB349180A (en) 1930-03-12 1930-03-12 Improvements in or relating to electro-magnetic step-by-step switches

Publications (1)

Publication Number Publication Date
GB349180A true GB349180A (en) 1931-05-28

Family

ID=9844366

Family Applications (1)

Application Number Title Priority Date Filing Date
GB802730A Expired GB349180A (en) 1930-03-12 1930-03-12 Improvements in or relating to electro-magnetic step-by-step switches

Country Status (1)

Country Link
GB (1) GB349180A (en)

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