发明授权
- 专利标题： Fence rail and method and apparatus of manufacturing the same
- 专利标题（中）： 围栏栏杆及其制造方法和装置
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申请号： US818229申请日： 1986-01-13
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公开(公告)号： US5025842A公开(公告)日： 1991-06-25
- 发明人: Frank E. Brimhall
- 申请人： Frank E. Brimhall
- 专利权人： Brimhall Frank E
- 当前专利权人： Brimhall Frank E
- 主分类号： B23B5/16
- IPC分类号： B23B5/16 ; B23B49/04 ; B23Q5/04 ; B27C5/08 ; B27G13/16 ; B27M3/28 ; B27M3/32 ; E04H17/14
摘要：
A machine for milling fence rails and the like having a pair of opposed milling units, each having a cutter head with a conically shaped inner surface, cutting knives arranged to taper material inserted into the heads to the shape of the inner surface and to form a projecting tine that is also tapered.
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