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US 4,784,196 AGranted
Method and apparatus for debarking logs
AssigneeBrunette Machine Works, Ltd.
InventorRonald D. Pousette
Life of this patent
Estimating the term…
Abstract
A method and apparatus for debarking logs of the type having long-fibre bark. In a first debarking operation, rotary cutterheads remove a portion of the mark so as to leave a bark/no-bark, barber-pole pattern on a log's surface. In a second, downstream debarking operation, scrapers on a rotating ring remove the remaining bark.
Claims4
Apparatus for debarking logs having long-fibre bark comprising
- a first debarking station including first rotary means having operatively associated revolving cutterhead means operable to remove a portion of a log's bark as the log moves through the station, so as to leave a bark/no-bark, barber-pole pattern on the log, and
- a second debarking station downstream from said first station, adapted to receive a log exiting the latter and including second rotary means having operatively associated scraper means operable to remove the remaining bark.
A method for debarking logs having long-fibre bark comprising
- the step of performing, utilizing a first set of rotary tools including revolving cutterheads, a first, partial debarking operation to produce a bark/no-bark pattern on a log characterized, progressing longitudinally along the log's thus-treated surface, in alternating bark/no-bark zones, and thereafter
- the step of performing, utilizing a second set of rotary tools including scrapers, a second debarking operation to remove the remaining bark.
A method for debarking logs having long-fibre bark comprising
- in a first, partial debarking operation, subjecting a log's surface to at least one rotary, revolving cutterhead to produce a bark/no-bark, barber-pole pattern on the log, and thereafter
- in a second debarking operation, subjecting the log's surface to at least one rotary scraper to remove the remaining bark.
Dependencies are inferred from the claim text.