J. A. Gammons

John Ashley "Daff" Gammons (March 17, 1876 – March 24, 1963) was an American baseball and football player, college football and baseball coach, amateur golfer, and insurance agent. He played professional baseball for one season, 1901, for the Boston Beaneaters. Gammons served as the head football coach at Brown University in 1902, 1908, and 1909, and as its head baseball coach from 1901 to 1903.

Early life

Gammons was born on March 17, 1876 in New Bedford, Massachusetts. He attended Brown University where he earned letters in football from 1895 to 1897, and baseball, including on the 1896 national championship team. He graduated from Brown in 1898, and then attended Harvard University in 1899 and 1900.

Professional career

After college, Gammons embarked upon a professional career in the insurance business. In 1901, he founded his own insurance company, John A. Gammons, Inc. (later Gammons & Son), in Providence, Rhode Island, which still remained in business more than one hundred years later. One source considered Gammons to be "one of the leading insurance agents of Providence".

DAFF

DAFF may refer to:

Dissolved air flotation

Dissolved air flotation (DAF) is a water treatment process that clarifies wastewaters (or other waters) by the removal of suspended matter such as oil or solids. The removal is achieved by dissolving air in the water or wastewater under pressure and then releasing the air at atmospheric pressure in a flotation tank basin. The released air forms tiny bubbles which adhere to the suspended matter causing the suspended matter to float to the surface of the water where it may then be removed by a skimming device.

Dissolved air flotation is very widely used in treating the industrial wastewater effluents from oil refineries, petrochemical and chemical plants, natural gas processing plants, paper mills, general water treatment and similar industrial facilities. A very similar process known as induced gas flotation is also used for wastewater treatment. Froth flotation is commonly used in the processing of mineral ores.

In the oil industry, dissolved gas flotation (DGF) units do not use air as the flotation medium due to the explosion risk. Nitrogen gas is used instead to create the bubbles.