Importance

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Abstract

A multistage lint cleaning apparatus includes plural series arranged rotary drum beaters in a first cleaning stage, each beater having a separating screen disposed adjacent thereto for separating particulate material and fine lint from longer fiber lint. Each screen is configured as a drawer supported within an enclosure for insertion and removal, at will. Clean lint discharged from the first cleaning stage passes through an air gap and into a duct connected to an aspirating nozzle for further separation of particulate material. A linear belt conveyor receives particulate material and fine lint from the first cleaning stage for discharge to a second cleaning stage also comprising a series of rotary drum beaters. Separating screens associated with each beater of the second cleaning stage are also configured to be inserted in and removed from an enclosure, at will. A third cleaning stage comprises a vibrating screen. Lint discharged from the second and third stages is inducted by an pneumatic conveying system, including an aspirating or induction nozzle. Spaced apart tubular air jet manifolds are disposed below the screens of at least the first cleaning stage and are supported on the apparatus frame for movement between working and nonworking positions of respective rows of jet nozzle ports in the manifolds by pneumatic actuators whereby the manifolds may be moved to a position to prevent clogging of the nozzle ports by particulate material falling through the screens.

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First Claim