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Today pigs are used during all phases in the life of a pipeline for many different reasons. Fig. 1 Cleaning pig in a pipeline Fig. 2 Classification of pipeline pigs. Pigs used today can be divided into three categories (Fig. 2): Utility Pigs, are used to perform functions such as cleaning, separating, or dewatering.
Pigs are used in lube oil or paint blending to clean the pipes to avoid cross-contamination, and to empty the pipes into the product tanks (or sometimes to send a component back to its tank). Usually pigging is done at the beginning and at the end of each batch, but sometimes it is done in the midst of a batch, such as when producing a premix ...
It began in western Texas and ended in a series of fights with the Comanche tribe on May 12, 1858, at a place called Antelope Hills by Little Robe Creek, a tributary of the Canadian River in what is now Oklahoma. The hills are also called the "South Canadians", as they surround the Canadian River.
The Raid on the Norias Division of the King Ranch was an attack August 8, 1915 by a large band of disaffected Mexicans and Tejanos in southern Texas.It was one of the many small battles of the Mexican Revolution that spilled over into United States soil and resulted in an increased effort by the United States Army to defend the international border.
The new changes are kind of a pig deal. “Our pig code was from 1938 — that was the last time we had done anything with that code,” a city official said. The new changes are kind of a pig deal.
The Texas–Indian wars were a series of conflicts between settlers in Texas and the Southern Plains Indians during the 19th-century. Conflict between the Plains Indians and the Spanish began before other European and Anglo-American settlers were encouraged—first by Spain and then by the newly Independent Mexican government—to colonize Texas in order to provide a protective-settlement ...
His early life was one far from the concerns of the Texas frontier and the politics of Mexico - landing in Georgia and West Point. Part 1: James Fannin built business, had fighting spirit ahead of ...
New York: Benchmark Books, 2000. Brice, Donaly E. The Great Comanche Raid: Boldest Indian Attack on the Texas Republic McGowan Book Co. 1987 "Comanche" Skyhawks Native American Dedication (August 15, 2005) "Comanche" on the History Channel (August 26, 2005) Dunnegan, Ted. Ted's Arrowheads and Artifacts from the Comancheria (August 19, 2005)