To saw different materials, users often need to switch blades. A blade with big teeth, for example, cuts wood quickly because It scoops out a lot of material with each tooth. But those same big teeth make the saw kick back toward the user if applied to a harder substance such as steel. Conversely, a blade with small teeth won't cause kickback on steel but is needlessly slow on wood. The new TwinBlade Saw from Ridgid cuts through nearly any material without requiring the user to change blades. Instead of employing one blade, the TwinBlade rotates a pair in opposite directions. Because two blades are working at once, the saw cuts faster. And the opposing spinning motions balance each other out, minimizing kickback.
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机译:BUZZ-YO-CHILD是一种袋装标签设备,其发明目的是在上学期间协助学生和家长。本发明将有助于使交通平稳地流过停靠降落区。大多数学校目前在放学期间面临许多问题,包括交通拥堵,学生坐在阳光下以及猜测父母何时开车经过。 Buzz Yo Child将在学校Wi-Fi系统上运行,并且家长将具有Buzz-Yo-Child应用程序,以将蜂鸣器警报发送到行李牌,以警告学生其父母在排队等候接送。