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The British Royal Navy adopted and standardized on the Robinson's Disengaging Gear in 1881, [3] and this system was still in use in the late 20th century. The Robinson's Disengaging Gear consists of three mechanisms. There are two disengaging hooks, one at each end of the seaboat, holding the boat to the falls.
Plastic film is a thin continuous polymeric material. Thicker plastic material is often called a "sheet". Thicker plastic material is often called a "sheet". These thin plastic membranes are used to separate areas or volumes, to hold items, to act as barriers, or as printable surfaces.
The Lower Riser Package is a mechanical device to protect an oil well located underwater (subsea) and used during an oil well intervention. The LRP is essentially a mini blow out preventer (BOP). The lower riser package consists of a connector to the subsea oil well, a series of safety valves and a connection point at the top for connection to ...
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Chafing of lines that rest on a choke on a boat can be prevented by putting a protecting material around the line. Traditionally ropes were wrapped in canvas and lubricated with tallow ; however, plastic sleeves or pipes (sometimes as simple as a piece of old garden hose ) are more common in recent times. [ 3 ]
Film is commonly checked for broken sprocket holes before presentation, a process known as "spooling". Mechanical devices exist for this purpose, but the classic method is to place the finger and thumb of a gloved hand on the edges of the film, which is mounted on a winding bench, and to slowly run the film through the fingers, feeling for snags.