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  2. Azimuth thruster - Wikipedia

    en.wikipedia.org/wiki/Azimuth_thruster

    English inventor Francis Ronalds described what he called a propelling rudder in 1859 that combined the propulsion and steering mechanisms of a boat in a single apparatus. . The propeller was placed in a frame having an outer profile similar to a rudder and attached to a vertical shaft that allowed the device to rotate in plane while spin was transmitted to the propell

  3. List of polyurethane applications - Wikipedia

    en.wikipedia.org/wiki/List_of_polyurethane...

    Industrial Insulation. Rigid polyurethane foam is used in various industries to provide thermal insulation to installations and pipes. In particular, the piping for district heating systems in Europe is primarily insulated using a pre-insulated pipes sandwich assembly composed of a steel heat service pipe, an insulating layer (polyurethane foam) and a polyethylene (PE) casing, which are bonded ...

  4. Lineshaft roller conveyor - Wikipedia

    en.wikipedia.org/wiki/Lineshaft_roller_conveyor

    A lineshaft roller conveyor or line-shaft conveyor is, as its name suggests, powered by a shaft beneath rollers. These conveyors are suitable for light applications up to 50 kg such as cardboard boxes and tote boxes. A single shaft runs below the rollers running the length of the conveyor. On the shaft are a series of spools, one spool for each ...

  5. Uniflite - Wikipedia

    en.wikipedia.org/wiki/Uniflite

    The first Uniflite boat an all fiberglass 17' outboard. Uniflite soon added a 14', an 18' and a 20' outboard and inboard/outboard boats, followed by a 25' express cruiser followed by a 31' and a 34' boat. Uniflite was the only boat builder exclusively using fire-retardant resins in the production of pleasure boats. [citation needed]

  6. Z-drive - Wikipedia

    en.wikipedia.org/wiki/Z-drive

    Azimuth thruster. A Z-drive is a type of marine propulsion unit. Specifically, it is an azimuth thruster.The pod can rotate 360 degrees allowing for rapid changes in thrust direction and thus vessel direction.

  7. Spherical roller bearing - Wikipedia

    en.wikipedia.org/wiki/Spherical_roller_bearing

    Spherical roller bearing with a brass cage in a cut-through view. A spherical roller bearing is a rolling-element bearing that permits rotation with low friction, and permits angular misalignment. Typically these bearings support a rotating shaft in the bore of the inner ring that may be misaligned in respect to the outer ring.

  8. Rotor ship - Wikipedia

    en.wikipedia.org/wiki/Rotor_ship

    Rotor ship E-Ship 1. A rotor ship is a type of ship designed to use the Magnus effect for propulsion.The ship is propelled, at least in part, by large powered vertical rotors, sometimes known as rotor sails.

  9. Saildrive - Wikipedia

    en.wikipedia.org/wiki/Saildrive

    The difference between a saildrive and a Z-drive is that a saildrive's propeller shaft is fixed in place, pointing aft, whereas a Z-drive's propeller shaft can be rotated to any azimuth. Traditional sailboat transmissions consist of a simple horizontal output shaft extended rearward from the engine, through the stern via a stuffing box. The ...

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