| 摘要 |
<p>Sawblades for cutting materials containing abrasive grains or fibers with a power saw utilizing two reciprocating sawblades (11,21) in contact with each other guided by a groove in a guidebar (10), all teeth on one blade pointing forwards and all teeth on the other blade pointing backwards. The teeth are located with unequal distances chosen so that two teech on the first blade will not simultaneously be opposite two teeth on the other blade with the same distance as the teeth on the first blade.</p> |
