Air doctor

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B - Operations, Transporting

05

C

32/28

B05C 11/06 (2006.01) D21H 25/16 (2006.01)

Patent

CA 2034074

(57) ABSTRACT OF THE DISCLOSURE This publication discloses a rotatable air doctor. According to the invention a body (1) encloses an air channel (2) of the air doctor, said air channel (2) exiting via nozzle air ducts (4) to nozzles (3). The nozzle air ducts (4) are provided with cut-off means (5, 7) with which the air flow from the air channel (2) via the nozzle air ducts (4) to the nozzles (3) can be shut off. During the use of the air doctor, the air flow to the nozzle (3) being used for doctoring is shut off with the help of the cut-off means (5, 7) and the air doctor is rotated by 180° about its longitudinal axis, whereby a clean nozzle (3) can be oriented toward the web. The cut-off in the nozzle air duct (4) of this nozzle (3) is released, whereby the nozzle (3) of the blocked duct (4) can be cleaned. (Figure 1)

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