GB358293A - Improvements in or relating to electromagnetic step-by-step switches - Google Patents

Improvements in or relating to electromagnetic step-by-step switches

Info

Publication number
GB358293A
GB358293A GB3084430A GB3084430A GB358293A GB 358293 A GB358293 A GB 358293A GB 3084430 A GB3084430 A GB 3084430A GB 3084430 A GB3084430 A GB 3084430A GB 358293 A GB358293 A GB 358293A
Authority
GB
United Kingdom
Prior art keywords
shaft
wipers
feed
class
coventry
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
GB3084430A
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 GB3084430A priority Critical patent/GB358293A/en
Publication of GB358293A publication Critical patent/GB358293A/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

  • Manufacturing Of Electrical Connectors (AREA)

Abstract

358,293. Automatic exchange switches. COVENTRY AUTOMATIC TELEPHONES, Ltd. and PUCKETTE, C. C., of General Electric Co., Stoke, Coventry. Oct. 15, 1930, No. 30844. Grant of Patent opposed. [Class 40 (iv).] In a rotary stepping switch having wiper sets each comprising a number of angularly-spaced electrically-connected wipers engaging different rows of contacts to give increased capacity, the wipers of a set are connected to a common collecting ring. Constructions of feed brushes, shaft mountings, and position indicators are also described. A wiper set may comprise a pair of wipers 10, 11 mounted at 180‹ on the shaft 14 and connected by collecting ring 12 against which rests the feed brush 25. The feed brushes have looped ends to form tags and bent end portions which engage a groove 31 in the mounting 30 to prevent twisting, the mounting being in two parts connected by screws 32. The shaft 14 is secured at one or both ends, to prevent vibration and rotation, by a slotted plate 16 engaging grooves 15 in the shaft. The plate 16 is secured to the switch frame by a screw 20 and its end 17 may serve as a position indicator in conjunction with a numbered disc 18 on the shaft 14. The Provisional Specification describes also a ratchet drive in which the detent engages the tooth next but one ahead of the driving pawl which, if moved forward an excessive distance, rides up the detent so that the taking up of more than one tooth at a time is prevented. Specification 255,657, [Class 40 (iv), Telephones &c.], is referred to.
GB3084430A 1930-10-15 1930-10-15 Improvements in or relating to electromagnetic step-by-step switches Expired GB358293A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3084430A GB358293A (en) 1930-10-15 1930-10-15 Improvements in or relating to electromagnetic step-by-step switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3084430A GB358293A (en) 1930-10-15 1930-10-15 Improvements in or relating to electromagnetic step-by-step switches

Publications (1)

Publication Number Publication Date
GB358293A true GB358293A (en) 1931-10-08

Family

ID=10314020

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3084430A Expired GB358293A (en) 1930-10-15 1930-10-15 Improvements in or relating to electromagnetic step-by-step switches

Country Status (1)

Country Link
GB (1) GB358293A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522715A (en) * 1946-03-15 1950-09-19 Automatic Elect Lab Rotary switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2522715A (en) * 1946-03-15 1950-09-19 Automatic Elect Lab Rotary switch

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