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1. 发明授权

US07841095B1 Drafting apparatus 失效
标题翻译：起草设备
公开(公告)号：US07841095B1
公开(公告)日：2010-11-30
申请号：US12407483
申请日：2009-03-19
申请人： Anthony J. Board
发明人： Anthony J. Board
IPC分类号： B43L7/12 , B43L13/02
CPC分类号： B43L5/00 , B43L7/02 , B43L7/14 , B43L13/02
摘要： The drafting apparatus has only three parts which are the permanently attached first head and blade, the adjustably attached second head, and the thumb screw. The apparatus quickly adjusts to a given surface. If secure attachment is desired, the thumb screw is tightened against the blade to position the second head firmly against a side of the surface opposite the first head. If desired, the second head is easily completely removed, to aid a draftsperson in a given task. The apparatus is not confined to use only on a drafting table. The transparent bevels provide visual access to indicia under part of the blade. The relatively long length of the elongated slot provides for fit to even narrow drawing surfaces.
摘要翻译：牵伸装置仅具有永久连接的第一头和刀片，可调节地附接的第二头部和拇指螺钉三个部分。该设备可快速调整到给定的表面。如果需要牢固的连接，则翼形螺钉被紧固到刀片上，以使第二头部牢固地抵靠在与第一头部相对的表面的一侧。如果需要，第二头容易地完全去除，以帮助在给定任务中的拔管者。该装置不限于仅在起草台上使用。透明斜面提供了对刀片部分下方的标记的可视化访问。细长槽的相对长的长度提供适合于甚至窄的拉伸表面。

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