GB297846A - Improvements in and relating to electric switches - Google Patents

Improvements in and relating to electric switches

Info

Publication number
GB297846A
GB297846A GB27898/28A GB2789828A GB297846A GB 297846 A GB297846 A GB 297846A GB 27898/28 A GB27898/28 A GB 27898/28A GB 2789828 A GB2789828 A GB 2789828A GB 297846 A GB297846 A GB 297846A
Authority
GB
United Kingdom
Prior art keywords
relating
electric switches
switches
electric
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
GB27898/28A
Other languages
English (en)
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 GB297846A publication Critical patent/GB297846A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/16—Contacts characterised by the manner in which co-operating contacts engage by abutting by rolling; by wrapping; Roller or ball contacts
GB27898/28A 1927-09-29 1928-09-28 Improvements in and relating to electric switches Expired GB297846A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US222891A US1728836A (en) 1927-09-29 1927-09-29 Electric switch

Publications (1)

Publication Number Publication Date
GB297846A true GB297846A (en) 1929-11-07

Family

ID=22834157

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27898/28A Expired GB297846A (en) 1927-09-29 1928-09-28 Improvements in and relating to electric switches

Country Status (3)

Country Link
US (1) US1728836A (fr)
FR (1) FR660652A (fr)
GB (1) GB297846A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1040653B (de) * 1953-11-03 1958-10-09 Calor Emag Elektrizitaets Ag Kontaktanordnung fuer elektrische Schalter, insbesondere Hochleistungsschalter

Also Published As

Publication number Publication date
FR660652A (fr) 1929-07-16
US1728836A (en) 1929-09-17

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