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Document Type and Number:
Japanese Patent JPH0137110
Kind Code:
B2
Abstract:
A cut-off device for a cigarette or filter rod making machine is designed to work with a knife having an aperture which, when the knife is spent, is detected by a system including a light emitter and a detector, with an electronic timing system sensitive to specific light/dark transitions to enable the presence of an aperture to be detected at various speeds of rotation of the member carrying the knife.

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Inventors:
JOOJI UIROGUBII BORUTO
RICHAADO RAMUJII KINGU
Application Number:
JP7253582A
Publication Date:
August 04, 1989
Filing Date:
April 28, 1982
Export Citation:
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Assignee:
MOLINS PLC
International Classes:
A24C5/28; A24C5/30; A24D3/02; B24B3/36; B24B3/40; B26D7/12; B26D7/26



 
Next Patent: JPH0137111