pl23_ship4409.jpg

Figure 37

Image

Download ( 1.33 MB )

Permalink

https://www.noaa.gov/media/digital-library-photo/pl23ship4409jpg

Description

Figure 37. Spring messengers with rotating closing mechanisms. In 1923, theDanish scientist Martin Knudsen described and tested this type of messenger.The goal was to find a form and weight of messenger that would rapidly descend a cable without becoming entangled. Subsequently messengers of this type weremost frequently used on research ships throughout the world.

Credit

Oceanographic Museum of Monaco

Photographer

Y. Berard

Collection

Voyage to Inner Space
History of Oceanography Collection
The Early Instruments - Collections of the Oceanographic Museum at Monaco
Miscellaneous Instruments, Deck Gear, and Laboratory Instruments

Keywords

Oceanography