Ekman reversing water bottle for measuring the temperature of seawater samples, small model with a messenger release system, designed by Vagn Walfrid Ekman and made by Ludvig Andersen, Kristiania (now Oslo), Norway, 1910. Two messengers plus cable.
These bottles were used for oceanographic research in the early years of the 1900s. They had two chambers with hinged lids and attached reversing thermometers, so that water temperature of two samples could be measured at different depths. They were also designed so that several bottles could be deployed on a line, with a system of messenger weights triggering the operation of bottles at different depths.
Ekman reversing water bottle with a messenger release system for measuring the temperature of seawater samples. Designed by Vagn Walfrid Ekman and made by Ludvig Andersen, Cristiania (or Kristiania, now Oslo), Norway, 1910.
Brass component. From Ekman reversing water bottle with a messenger release system for measuring the temperature of seawater samples. Designed by Vagn Walfrid Ekman and made by Ludvig Andersen, Cristiania (or Kristiania, now Oslo), Norway, 1910.
Cables for Ekman reversing water bottle with a messenger release system for measuring the temperature of seawater samples. Designed by Vagn Walfrid Ekman and made by Ludvig Andersen, Cristiania (or Kristiania, now Oslo), Norway, 1910.