dromoscopen.
/ˈdrɒməskəʊp/ An instrument to indicate the course of a ship; also, to indicate the velocity of a train or other vehicle.
ΘΚΠ
society > travel > travel by water > vessel, ship, or boat > equipment of vessel > navigational aids > [noun] > other instruments indicating course or leeway
derivometer1842
dromoscope1875
course-indicator1900
1875 Chambers's Jrnl. 30 Jan. 79 The ‘universal dromoscope’, for correcting the course of a ship.
1876 Catal. Special Loan Coll. Sci. Apparatus S. Kensington Mus. §3131 Dromoscope. By means of this instrument the deviation of the compass, either of the course or azimuth, is indicated merely by stopping the hand.
1881 Nature 7 July 225/2 Colonel Leboulangé will exhibit..his ingenious dromometer and dromoscope for controlling the velocity of trains.
This entry has not yet been fully updated (first published 1897; most recently modified version published online June 2021).
<
n.1875