In Britain, it means diddly. It means you're a male, presumably respectable. If you have no other title, then the overly-British will put esq. after your name on an envelope, etc. In America, I believe it's sometimes used after a lawyer's surname. However, I don't see it used much by U.S. lawyers.
This type was used on the Lifeboats of the RMS Titanic. Each arm must be rotated out manually; uses manila rope falls. Goose-neck shape to the arm that is swung out. Mechanical (obsolete) â This type is like the radial davit, but both arms are moved out at the same time using a screw system; uses manila rope falls.
Technical Info: How Inflatable Life Jackets Work. How inflatable lifejackets work. Automatic lifejackets activate when detecting water. Upon detection of water, a firing. mechanism will activate and pierce a CO2 cylinder. The air coming out of the cylinder will. inflate the bladder of the lifejacket and create buoyancy.