Method for manufacturing wood poles

Details Method for manufacturing wood poles Method for manufacturing wood poles

B - Operations, Transporting

27

G

26/181

B27G 11/00 (2006.01)

Patent

CA 1198885

ABSTRACT In the manufacturing of wood poles a number of sections are glued together along abutting side surfaces (7, 8) so that a tubular pole (19) with a central cavity is formed. The side surfaces (7, 8) which have been provided with glue are brought into intimate con- tact with each other so as to give a tube (19). Sealing covers (20, 21) of the like are placed at both ends of the tube so that these are sealed, whereafter air is pumped out from the central cavity (23) through one or both of the said covers so as to give a vacuum in the cavity in comparison with the external pressure, whereby the contact pressure between the abutting side surfaces increases. The vacuum is maintained until the glued joints (31) have been fixed.

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