1898 – Diving Apparatus Patent – James E Holland (American)

1898 – Diving Apparatus Patent by James E Holland. Publication number US638335 A Publication type Grant Publication date Dec 5, 1899 Filing date Dec 20, 1898 Priority date Dec 20, 1898   Inventors James E Holland Original Assignee Anton Lutz, James E Holland My invention relates to diving apparatus, and has special reference to such …

1923 – EPRON-1 Humidistat – E. G. Danilenko (Russian)

1923 – EPRON-1 Humidistat – E. G. Danilenko. Гидростат Даниленко Е.Г. «Ð­ÐŸÐ ÐžÐ-1» Source: here. Original text by Alexey Rasshivalov, translated to English by Google translate. The first domestic ( and second in the world) DHD humidistat , better known as " EPRON -1 ." Built in 1923, the project EG Danilenko . Heavy machine to …

1961 – Submaray Submersible – Doug Privitt (American)

 1961 – Submaray Submersible by Doug Privitt started being built in 1961 and was launched in 1962. Privitt inside Submaray operating the simple rod manipulator arm. It appears to slide inside a ball-and-socket joint, as can be seen in the video clip. Although a simple setup, this arm is quite efficient and versatile. The …

1959 – SP-350 Denise Diving Saucer – Jacques-Yves Cousteau et al (French)

 The SP-350 Denise, famous as the "Diving saucer" (Soucoupe plongeante), is a small submarine designed to hold two people, and is capable of exploring depths of up to 400 metres (1,300 ft). It was invented by Jacques-Yves Cousteau and engineer Jean Mollard at the French Centre for Undersea Research. It was built in the …

1947 – Mechanical Lobster – Harry Rieseberg / Charles Warren (American)

1947 – Mechanical Lobster model by Harry Rieseberg and Charles Warren. Source: Mechanix Illustrated, Nov 1947. Mechanical “Lobster” Deep undersea the claws of this tank will rip to the heart of rotting treasure ships. THERE’S gold down on the ocean floor. Vast fortunes lie hidden in sunken caches, waiting the hand bold enough to stretch …