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Harry Ashburn Forbes
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2559. Forbes, H. A. Feb. 6. Locking nuts.-The nut a of a rail joint &c. has a split internally - threaded and normally parallel extension b, which is forced inwards to grip the bolt by the sleeve d formed with a taper hole. When the nut is used in connection with valves &c., the sleeve and extension are internally and externally threaded respectively to engage with one another.
GB190102559D1901-02-061901-02-06Improvements in "Locking Nuts".
ExpiredGB190102559A
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