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 …

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 …

1933 – Submarine Salvage Apparatus – Eugene J. Romano (American)

1933 – Submarine Salvage Apparatus by Eugene J. Romano. For a demonstration of the robot to be used on this expedition, Lieutenant Harry E. rieseberg tackles the device in true diver's fashion. There is no dignity in entering or leaving the robot. Harry E. Rieseberg Extract from HE WALKS WITH  DAVEY JONES by Eric Strutt …

1931 – Mobile Submarine Diving Bell – Carl H. Wiley, Elbert H. Wiley (American)

1931 – Mobile Submarine Diving Bell by Carl H. Wiley, Elbert H. Wiley   3D Video by Charles Daigneault. Three million dollars in nuggets of gold! This is the lure that set a small band of adventurers sailing from Seattle, Wash., a few weeks ago. It lies under the hold of the ill-fated S. S. …