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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 roller. An elastic polyurethane o-ring belt runs from a spool on the powered shaft to each roller. When the shaft is powered, the o-ring belt acts as a chain between the spool and the roller making the roller rotate.
Industrial applications include forklift drive and load wheels, grocery and industrial carts, [11] and roller coaster wheels. Modern roller blading and skateboarding became economical only with the introduction of tough, abrasion-resistant polyurethane parts, helping to usher in the popularity of what had once been an obscure 1960s craze.
An artist's impression of a full-scale Bazin roller liner. The principle behind the design was similar to that of the slightly later hydrofoil; by avoiding as much hull contact with the water as possible, the amount of drag could be reduced and – in theory – the vessel could be made to move much faster for a given amount of power.
Pages in category "1970s sailboat type designs" The following 200 pages are in this category, out of approximately 468 total. ... This page was last edited on 14 ...
Pages in category "Sailboat type designs by Robert Tucker" The following 2 pages are in this category, out of 2 total. This list may not reflect recent changes .
Cornish Crabbers LLP is a British boat builder based in Rock, Cornwall. The company specializes in the design and manufacture of glassfibre gaff-rigged sailboats and powerboats. It was founded by boat designer Roger Dongray, as well as Peter Keeling and Ken Robertson in 1974. [1] [2] [3] The company is organized as a British limited liability ...
Advantages of the sterndrive system versus inboards include simpler engineering for boatbuilders, eliminating the need for them to design propshaft and rudder systems; ease of trailering and shallow water maneuvering (with the drive trimmed up); also, a significant space savings with the engine mounted all the way aft, freeing up the boat's ...
Roller furling is a method of furling (i.e. reefing) a yacht's staysail by rolling the sail around a stay. Roller furling is typically used for foresails such as jibs or genoas. [1] A mainsail may also be furled by a similar system, whereby the sail is furled within the mast or around a rotating boom (or around a
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