US Naval WW2 Bathythermograph RARE Exploratory Device LOOK

US Naval WW2 Bathythermograph RARE Exploratory Device LOOK
US Naval WW2 Bathythermograph RARE Exploratory Device LOOK
US Naval WW2 Bathythermograph RARE Exploratory Device LOOK
US Naval WW2 Bathythermograph RARE Exploratory Device LOOK
US Naval WW2 Bathythermograph RARE Exploratory Device LOOK
US Naval WW2 Bathythermograph RARE Exploratory Device LOOK
US Naval WW2 Bathythermograph RARE Exploratory Device LOOK
US Naval WW2 Bathythermograph RARE Exploratory Device LOOK
US Naval WW2 Bathythermograph RARE Exploratory Device LOOK
US Naval WW2 Bathythermograph RARE Exploratory Device LOOK
US Naval WW2 Bathythermograph RARE Exploratory Device LOOK
US Naval WW2 Bathythermograph RARE Exploratory Device LOOK

US Naval WW2 Bathythermograph RARE Exploratory Device LOOK

This is an incredible US Naval WW2 Bathythermograph with amazing historical significance. It was manufactured during the World War II era (1939-45) and is an original piece of militaria from that time. The device was used to measure the temperature and depth of water and played an important role in naval operations. The Bathythermograph is in great condition and is a must-have for any collector of original period items from this era. The device also has a unique design and is a great addition to any collection of militaria or collectibles from the United States.

For a thermal element it has a xylene-filled copper coil, which actuates a stylus through a Bourdon tube. The pressure element is a copper aneroid capsule that moves a smoked glass slide at right angles to the motion of the stylus. A double analog record is thus obtained as the BT is lowered and recovered. This device was generally replaced by the expendable bathythermograph (XBT). This object is a bathythermograph MK 5.

It has a torpedo-shaped body with 6 fins and is in a grey-painted wooden case. The instrument has a fitting for a bathythermographic slide, and a catch release for a pin to mark the slide. The top of the bathythermograph is marked'Hawker Siddeley' and it was made by S. Until the development of the bathythermograph in 1938, the thermocline (the layer of rapid temperature change between surface and deep water) had not been understood. The bathythermograph was able to show the structure of this layer more readily than could be achieved by measurements using a water bottle and thermometer.

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US Naval WW2 Bathythermograph RARE Exploratory Device LOOK