Ralph G. Haynes

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Yorkshire, GB

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Patents Grantslast 30 patents

Information Patent Grant
Roll change arrangement for beam mill stand
- Patent number 4,823,584
- Issue date Apr 25, 1989
- Davy McKee (Sheffield) Limited
- Ralph G. Haynes
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Roll adjustment method
- Patent number 4,787,226
- Issue date Nov 29, 1988
- Davy McKee (Sheffield) Limited
- Ralph G. Haynes
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Rolling mill
- Patent number 4,658,622
- Issue date Apr 21, 1987
- Davy McKee (Sheffield) Limited
- Ralph G. Haynes
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...