electro-pneumatic

English

Etymology

From electro- +‎ pneumatic.

Adjective

electro-pneumatic (not comparable)

1. Alternative form of electropneumatic
   • 1944 May and June, “Notes and News: Bakerloo Tube Stock”, in Railway Magazine, page 184:

     [...] Mr. Grierson remarks that on the L.P.T.B. tube stock in general the electro-pneumatic brake is in use, but that the new 1938 stock is fitted with the self-lapping electro-pneumatic brake, which is under the control of an automatic mercury-operated retardation controller when normal service stops are being made.

   • 1960 February, “The first of London's new Piccadilly Line trains is delivered”, in Trains Illustrated, page 94:

     Features such as trackless doors, mercury-type door interlocks, roof-mounted door fault indicator lights, rubber window glazing, improved retractable shoegear and a modified electro-pneumatic brake system designed to facilitate maintenance and improve reliability, which have proved their worth on the prototype trains, are continued in the new stock.