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Also known as JIS L 1099 is similar to the ASTM E96-BW test method. A desiccant, potassium acetate, is put into a cup and sealed with a piece of ePTFE (Teflon/Stedfast/Gore-Tex film). The fabric to be tested is then placed over the cup with the fabric side to the cup. The cup is then inverted into a pan of water.
Bicycle chains Roller chain and sprocket. A bicycle chain is a roller chain that transfers power from the pedals to the drive-wheel of a bicycle, thus propelling it.Most bicycle chains are made from plain carbon or alloy steel, but some are nickel-plated to prevent rust, or simply for aesthetics.
A single-speed bicycle is a type of bicycle with a single gear ratio and a freewheel mechanism. These bicycles are without derailleur gears, hub gearing or other methods for varying the gear ratio of the bicycle. Adult single-speed bicycles typically have a gear ratio of between 55 and 75 gear inches, depending on the rider and the anticipated ...
Gore-Tex is W. L. Gore & Associates's trade name for waterproof, breathable fabric membrane. It was invented in 1969. It was invented in 1969. Gore-Tex blocks liquid water while allowing water vapor to pass through and is designed to be a lightweight, waterproof fabric for all-weather use.
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 ...
One example is the Protean two-speed derailleur available on the Whippet safety bicycle. [4] The French bicycle tourist, writer and cycling promoter Paul de Vivie (1853–1930), who wrote under the name Vélocio, invented a two speed rear derailleur in 1905 which he used on forays into the Alps. [5]
The origin of Glide (which is what the brand was called prior to the P&G acquisition) dates to 1971, when Bill Gore first used a Gore-Tex fiber to floss his own teeth; [1] Gore-Tex was the PTFE-based fiber he had invented as a "waterproof laminate". The company failed to market the product for more than three decades.
A small section of KMC bicycle chain. KMC Chain Industrial Co., Ltd. is a roller chain manufacturer headquartered in Taiwan, R.O.C. with corporate entities in the US, Continental Chain Company, and Europe, KMC Chain Europe BV. [2] They make cam driving chains, balance driving chains, oil pump chains, motorcycle chains, and industrial chains. [3]