| 摘要 |
FIELD: hacksaw blades for belts saws and circular saws. ^ SUBSTANCE: proposed hacksaw blade has saw tooth setting system consisting of first and second groups of teeth; saw tooth setting system is repeated. According to one version, depth of teeth of second group of teeth is lesser than that of first group. Degree of saw tooth setting of second group is lesser than that of first group; first group has at least one tooth without tooth setting. ^ EFFECT: enhanced efficiency; reliable protection of teeth. ^ 51 cl, 31 dwg |
