发明授权
- 专利标题： Machine for straightening and stress-relieving steel rails
- 专利标题（中）： 矫直和减轻钢轨的机器
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申请号： US836148申请日： 1986-03-04
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公开(公告)号： US4726212A公开(公告)日： 1988-02-23
- 发明人: Raymond Y. Deroche , Jacques Michaux
- 申请人： Raymond Y. Deroche , Jacques Michaux
- 申请人地址： FRX Metz
- 专利权人： Unimetal
- 当前专利权人： Unimetal
- 当前专利权人地址： FRX Metz
- 优先权： FRX8503641 19850311
- 主分类号： B21D3/12
- IPC分类号： B21D3/12 ; B21D25/00
摘要：
A hydraulic stretching machine for straightening and stress-relieving rails, the machine being defined by stretching grips and fixing shackles being displaceable individually and independently, laterally and vertically, with respect to the longitudinal axis of the stretching machine, and grip-holding jaws which can be oriented about a longitudinal axis, the jaws including a fixed jaw and a mobile jaw articulated in and upon the fixed jaw.
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