发明名称 Broadhead arrow sharpening accessory
摘要 A broadhead arrow sharpening accessory adapted to receive a flat file between end blocks for sharpening the broadhead blades. The end blocks contain end slots formed therein for receiving the ends of the file. Parallel rods extend between the end blocks alongside the side edges of the flat file. Support carriages are slidably mounted on the rods for receiving the broadheads with a blade extending outward frictionally engaging a file surface. The carriage and broadhead are moved in unison along the rod with the blade edge frictionally engaging the filing surface to sharpen the blade edge at the desired bevel angle.
申请公布号 US4078455(A) 申请公布日期 1978.03.14
申请号 US19770784163 申请日期 1977.04.04
申请人 BRODY, JOHN F. 发明人 BRODY, JOHN F.
分类号 B23D71/04;(IPC1-7):B21K5/06 主分类号 B23D71/04
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