self-lapping

English

Etymology

From self- +‎ lapping

Adjective

self-lapping (not comparable)

  1. Of a valve, especially for brakes, maintaining the force of pressure selected by a control.
    • 1961 February, R. K. Evans, “The role of research on British Railways”, in Trains Illustrated, page 95:
      Thus, in the newer locomotives for the Great Northern line, the Woodward governors are adapted for air (not solenoid) control and continuous engine speed control through a self-lapping valve replaces the individual-speed steps, allowing operation in multiple with English Electric and Birmingham diesels.

References
This article is issued from Wiktionary. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.