uniselectorn.
/ˈjuːnɪsᵻˌlɛktə/, U.S. /ˈjunəsəˌlɛktər/ Telephony.
A selector (selector n. c(b)) which has a wiper free to rotate about an axis but not to move along it.
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society > communication > telecommunication > telegraphy or telephony > telephony > telephone equipment > [noun] > exchange > exchange equipment
private line1852
bank1884
call-disc1884
howler1886
trunk1889
multiple switchboard1891
rack1893
line switch1898
heat coil1900
relay rack1902
multiple1905
listening key1906
telharmonium1906
wiper1906
preselector1912
line finder1922
rank1924
routiner1928
keysender1929
uniselector1930
wiper arm1933
1930 Gloss. Terms Telegraphs & Telephones (B.S.I.) 27 Uniselector.
1938 C. W. Wilman Automatic Teleph. (ed. 2) iii. 20 Single-motion switches are commonly termed uniselectors, lineswitches being known as subscribers' uniselectors.
1971 J. H. Smith Digital Logic i. 4 An electronic telephone exchange uses static switching, but..a conventional exchange..uses relays and uniselectors consisting entirely of moving parts.
2011 A. Wheen Dot-dash Dot.com iv. 56 The uniselector on the right is now assigned to that subscriber for the duration of the call.
This entry has been updated (OED Third Edition, September 2015; most recently modified version published online March 2022).
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n.1930