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Handcar. A handcar (also known as a pump trolley, pump car, rail push trolley, push-trolley, jigger, Kalamazoo, [1] velocipede, or draisine) is a railroad car powered by its passengers, or by people pushing the car from behind. It is mostly used as a railway maintenance of way or mining car, but it was also used for passenger service in some cases.
G: Gravel or solids. An airlift pump is a pump that has low suction and moderate discharge of liquid and entrained solids. The pump injects compressed air at the bottom of the discharge pipe which is immersed in the liquid. The compressed air mixes with the liquid causing the air-water mixture to be less dense than the rest of the liquid around ...
The basic working principle of an air-operated double diaphragm pump. Cross-section sketch of diaphragm fuel pump Air-operated double diaphragm pump. A diaphragm pump (also known as a Membrane pump) is a positive displacement pump that uses a combination of the reciprocating action of a rubber, thermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm (check valve ...
Chopper pumps. A chopper pump is a centrifugal pump which is equipped with a cutting system to facilitate chopping or maceration of solids that are present in the pumped liquid. The main advantage of this type of pump is that it prevents clogging of the pump itself and of the adjacent piping, as all the solids and stringy materials are ...
The Westinghouse Air Brake Technologies Corporation (sometimes nicknamed or abbreviated WABCO although this was also confusingly used for spinoffs) was an American company founded on September 28, 1869 by George Westinghouse in Pittsburgh, Pennsylvania. [5] Earlier in the year he had invented the railway air brake in New York state.
June 24, 2024 at 5:10 PM. OMAHA, Neb. (AP) — A new federal rule finalized Monday aims to ensure first responders can find out what hazardous chemicals are on a train almost immediately after a ...
Delta Air Lines released its list of most-searched summer destinations, and while there are some perennial favorites — Paris and Rome, to name two —others locales may surprise you. Athens ...
NG725. An Experiment on a Bird in the Air Pump is a 1768 oil-on-canvas painting by Joseph Wright of Derby, one of a number of candlelit scenes that Wright painted during the 1760s. The painting departed from convention of the time by depicting a scientific subject in the reverential manner formerly reserved for scenes of historical or religious ...