| 摘要 |
A puller or extractor for removing arrowheads embedded in material such as wood, comprising a rod having a front end with an internally screw threaded socket suitable for engaging the threaded boss of an arrowhead, the rod also having an external screw thread and a rear end part suitable for hand manipulation; and a sleeve having a front end cavity for accommodating the arrowhead. An internally screw threaded bore extends inwardly from a rear end of the sleeve and engages the external screw thread of the rod. The arrangement is such that the rod can be hand rotated by its rear end part to engage the front end of the rod with the boss of the arrowhead, after which the sleeve can be hand rotated in contact with the material surrounding the arrowhead, while the rod is held against rotation, to draw the arrowhead out of the material and into a withdrawn position in the cavity of the sleeve.
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