Search results
Results from the WOW.Com Content Network
The London and South Western Railway (LSWR) 0298 Class or Beattie Well Tank is a class of British steam locomotive. They are 2-4-0 WT s, originally built between 1863 and 1875 for use on passenger services in the suburbs of London , but later used on rural services in South West England .
The well tanks held 435 imp gal (1,980 L) of water, and the bunker held 15 long cwt (760 kg) of coke. The weight was 28.35 long tons (28.80 t) in working order. [5] Originally used around London, two moved to Woking by 1866 and the other one to Guildford. Later they were used at Salisbury, and one was eventually at Bournemouth.
Eight 4-2-4 well- and back-tank locomotives which entered service on the Bristol and Exeter Railway in 1853 appear to have been the first with this wheel arrangement. The engine was designed by James Pearson , the railway company's engineer, and featured single large flangeless driving wheels between two supporting four-wheeled bogies .
The LSWR 415 class combined side tanks and a well tank. Large side tank engines might also have an additional rear tank (under the coal bunker), or a well tank (between the frames). [21] This may have been to increase the water capacity, to equalise the weight distribution, or else improve the stability by lowering the centre of gravity. [22]
Casing Diameters of a Borehole Casing Diagram premium gas tight connections on a casing string. Casing is a large diameter pipe that is assembled and inserted into a recently drilled section of a borehole. Similar to the bones of a spine protecting the spinal cord, casing is set inside the drilled borehole to protect and support the wellstream.
The total volume of the tank is V t. Case 2 is a tank in use, with the air pressure at pressure P (gauge) and a water volume of V. Referring to the diagram on the right, a pressure tank is generally pressurized when empty with a "charging pressure" P c, which is usually about 2 psi below the turn-on pressure P lo (Case 1).
AOL Mail welcomes Verizon customers to our safe and delightful email experience!
A dry well or drywell is an underground structure that disposes of unwanted water, most commonly surface runoff and stormwater, in some cases greywater or water used in a groundwater heat pump. It is a gravity-fed , vertical underground system that can capture surface water from impervious surfaces , then store and gradually infiltrate the ...