Importance

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Abstract

Longitudinally spaced-apart portions of a tobacco stream in a cigarette maker are densified and the stream is then draped into a web of cigarette paper prior to being severed across the densified portions to yield a succession of plain cigarettes each having two dense ends. The characteristics of both ends of some or all of the cigarettes are monitored independently of each other and the resulting signals are totalized and thereupon compared to indicate the extent of deviation of the quality of one dense end from the other dense end. If the deviation exceeds a selected threshold value, the densifying station is shifted nearer to or further away from the severing station so as to eliminate or reduce the differences.

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First Claim