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The main components of a typical steam locomotive. Click or hover over numbers to see names. The diagram, which is not to scale, is a composite of various designs in the late steam era. Some components shown are not the same as, or are not present, on some locomotives – for example, on smaller or articulated types.
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Hinged side rods connecting the driving wheels of Milwaukee Road 261.. A coupling rod or side rod connects the driving wheels of a locomotive. Steam locomotives in particular usually have them, but some diesel and electric locomotives, especially older ones and shunter locomotives, also have them.
The Walschaerts valve gear is a type of valve gear used to regulate the flow of steam to the pistons in steam locomotives, invented by Belgian railway engineer Egide Walschaerts in 1844. [ 1 ] [ 2 ] The gear is sometimes named without the final "s", [ a ] since it was incorrectly patented under that name.
After about 1910, the Baker valve gear was the main competitor to Walschaerts valve gear for steam locomotives in the United States. Strictly speaking it was not a valve gear but a variable expansion mechanism adapted to the Walschaerts layout replacing the expansion link and sliding die block.
Technologies and devices and parts used on a steam locomotive. Subcategories. This category has the following 8 subcategories, out of 8 total. C.
The locomotives produced by Crown were narrow gauge live steam locomotives of various sizes, ranging from 15 in (381 mm) gauge to 3 ft (914 mm) gauge. All locomotives built were of the 4-4-0 wheel arrangement, with the exception of Carowinds locomotive no. 1 "Melodia", a 2-6-2 rebuilt from a 0-6-2T built by Porter in 1897. [ 3 ]
The final 97 locomotives had piston valves mounted outboard of the cylinders, instead of inbound as previously built, giving the cylinder assemblies an outward cant at the top, rather than inward. All B6sa and B6sb locomotives were retrofitted with power reverse to make the frequent back-and-forth of switching quicker and easier.