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All Sturmey-Archer gear hubs use epicyclic (planetary) geartrains of varying complexity. The AW is the simplest, using one set of planetary gears with four planets. The AM uses three compound planets with differently sized cogs machined from a common shaft to engage the gear ring and sun gear separately, while the close-ratio three-speeds, and hubs with four or more speeds, use multiple ...
Characters in the Thursday Next series. The Thursday Next series by Jasper Fforde currently consists of the novels The Eyre Affair, Lost in a Good Book, The Well of Lost Plots, Something Rotten, First Among Sequels, One of Our Thursdays Is Missing and The Woman Who Died a Lot.
1921/1925 – 346cc J.A.P 4-stroke engine with 3-speed Sturmey Archer gearbox, change lever mounted with gearbox. 1921/1925 – Model 250 247cc J.A.P. 4-stroke engine: Model 350 346cc J.A.P. all chain drive 4-stroke engine: Code named "Zarteetee" the bike raced in the 1923 Isle of Man TT finishing 21st out of 41 riders taking part.
Henry Sturmey. John James Henry Sturmey (1857–1930), known as Henry Sturmey, is best remembered as the inventor with James Archer of the Sturmey-Archer three-speed hub for bicycles, but he was a technical editor and journalist heavily involved as a pioneer of the cycling and automotive industries. Born at Norton-sub-Hamdon, Somerset, on 28 ...
v. t. e. Sturmey-Archer S3X. A hub gear, [1] internal-gear hub, [2] internally geared hub[3] or just gear hub[4] is a gear ratio changing system commonly used on bicycles that is implemented with planetary or epicyclic gears. The gears and lubricants are sealed within the shell of the hub gear, in contrast with derailleur gears where the gears ...
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Hub dynamo. A hub dynamo is a small electrical generator built into the front hub of a bicycle wheel that is usually used to power lights. Often the hub "dynamo" is not actually a dynamo, which creates DC, but a low-power magneto that creates AC. Most modern hub dynamos are regulated to 3 watts at 6 volts, although some will drive up to 6 watts ...
550 cc (34 cu in) air-cooled four-stroke single-cylinder (4 hp) Bore / stroke. 85 mm × 97 mm (3.3 in × 3.8 in) Power. 4 bhp. The Triumph Model H (also known as the 'Type H' and 'the Trusty') is a British motorcycle made by Triumph Engineering Co Ltd in Coventry, England. [1] A total of 57,000 Triumph Model H motorcycles were made from 1915 ...