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Under the Whyte notation for the classification of steam locomotives by wheel arrangement, a 4-4-2+2-4-4 is a Garratt articulated locomotive.The wheel arrangement is effectively two 4-4-2 locomotives operating back to back, with each power unit having four leading wheels on two axles in a leading bogie, four powered and coupled driving wheels on two axles, and two trailing wheels on one axle ...
Swiss classification: 2/3+2/3 For a Mallet locomotive the UIC classification is refined to (1'B)B1' A similar wheel arrangement has been used for Garratt locomotives , but it is referred to as 2-4-0+0-4-2 since both engine units can pivot.
Brannock spent two years developing a simple means of measuring the length, width, and arch length of the human foot. He eventually improved on the wooden RITZ Stick, the industry standard of the day, [ 2 ] patenting his first prototype in 1925 [ 3 ] and an improved version in 1927. [ 1 ]
Locomotives classified 4-4-2 under the Whyte notation of locomotive axle arrangements. The equivalent UIC classification of locomotive axle arrangements is 2B1 or 2'B1 . Subcategories
Laura Gordon and Tim Griffin have joined the cast of “Voltron” for Amazon MGM Studios, alongside previously announced stars Sterling K. Brown, Daniel Quinn-Toye, Henry Cavill, Rita Ora, John ...
a device used to measure the strain of an object. Thread pitch gauge, also called a threading gauge, pitch gauge, or screw gauge a device used to measure the pitch or lead of screw threads. Vernier height gauge: a measuring device used either for determining the height of something, or for repetitious marking of items to be worked on.
A few sizes are close enough to interchange for most purposes, such as 19 mm (close to 3 ⁄ 4 inch (19.05 mm)), 8 mm (close to 5 ⁄ 16 inch (7.94 mm)) and 4 mm (close to 5 ⁄ 32 inch (3.97 mm)). In reality, a wrench with a width across the flats of exactly 15 mm would fit too tightly to use on a bolt with a width across the flats of 15 mm.
The earliest British use of the 2-4-2 wheel arrangement appears to have been no. 21 White Raven, supplied to the St Helens Railway by James Cross of Sutton Works in 1863. It was soon rebuilt as a 2-4-0 tender locomotive and eventually passed into the stock of the London and North Western Railway (L&NWR).