How did opponents of the civil rights act of 1964 use the filibuster to try to block its passage?

Lyndon Johnson, the president of the United States at the time this act was being debated on in the Senate, had his former colleague and Republican minority leader Everitt Dirksen support the use of a cloture, which is used to restrict or stop all debate on a bill and require a vote on it, to end the filibuster, or constant debate on a bill

Galileo turned his telescope peacefully to the skies. He started by observing the Moon, on which he discovered mountains and craters, not an even surface as was believed at the time. Then, on January 7th, 1610, while looking at Jupiter, he saw three small stars close to it, two to the east of the planet and one to the west. The next night he looked at them again and all three were to the west. Watching on subsequent nights he saw them in varying positions and realised that they were ‘wandering’ round Jupiter, as he later put it, moving around it in orbit. On January 13th he discovered a fourth satellite or moon.