gearlessadj.
/ˈɡɪəlɪs/ Of a motor: Having no gear for the transmission of motion; acting directly.
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society > occupation and work > equipment > machine > machines which impart power > motor > [adjective] > types of motor
gearless1892
servo-controlled1929
stepping1957
1892 Pall Mall Gaz. 4 July 7/1 They are mounted on two bogies, each having 200 h.p. gearless motor attached to it.
1906 Westm. Gaz. 15 May 4/2 The long-promised six-cylinder ‘gearless’ Napier car.
1951 Festival of Brit.: Catal. Exhibits: South Bank Exhib. (H.M.S.O.) 183/1 Gearless passenger lift to carry 20 persons.
1966 Listener 6 Oct. 515/3 Dr Donald Firth with his gearless car and revolutionary machine tools deserves far more urgent attention.
This entry has not yet been fully updated (first published 1898; most recently modified version published online June 2021).
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adj.1892