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Johnboat. A johnboat[1] is a flat-bottomed boat [2] constructed of aluminum, fiberglass, wood, or polyethelene with one, two, or three seats, usually bench type. They are suitable for fishing, hunting and cruising. The nearly flat hull of a johnboat tends to ride over the waves rather than cut through them as a V-hull might; this shallow draft ...
Swivel designs. A common design for a swivel is a cylindrical rod that can turn freely within a support structure. The rod is usually prevented from slipping out by a nut, washer or thickening of the rod. The device can be attached to the ends of the rod or the center. Another common design is a sphere that is able to rotate within a support ...
The history of the MS Mount Washington dates back to 1872 when the original paddle steamer Mount Washington was launched from Alton Bay. The Mount was the largest of all the steamers on the lake at 187 feet (57 m) in length, with a beam of 49 feet (15 m). She was driven by a single cylinder steam engine of 450 horsepower (340 kW) that operated ...
A swivel gun (or simply swivel) [1] is a small cannon mounted on a swiveling stand or fork which allows a very wide arc of movement. Another type of firearm referred to as a swivel gun was an early flintlock combination gun with two barrels that rotated along their axes to allow the shooter to switch between either the rifled or the smoothbore ...
A swivel, swivelling, spinny, or revolving chair is a chair with a single central leg that allows the seat to rotate 360 degrees to the left or right. A concept of a rotating chair with swivel castors was illustrated by the Nuremberg noble Martin Löffelholz von Kolberg in his 1505 technological illuminated manuscript, the so-called Codex ...
A thwart is a part of a boat that usually has two functions: as a seat, and as a structural member that provides some rigidity to the hull. A thwart goes from one side of the hull to the other in an open (undecked) boat, and therefore resists forces pushing in or pulling out the sides of the hull. More obviously it provides a seat for an ...