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Improved rail hitch hook and mold set for rail wagon hitch hook
Improved rail hitch hook and mold set for rail wagon hitch hook
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机译:改进的铁路挂钩钩和用于铁路货车挂钩的模具套件
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摘要
A railway car coupler includes a knuckle that is rotatable about a pivot pin. The knuckle is comprised of a tail section, a hub and a nose section. The knuckle is usually made of steel in a casting operation. The pivot pin opening in the knuckle is cylindrical with generally straight walls with a reduced diameter centrally located cylindrical relief area. The nose has a blunt end, and a thicker internal reinforcing section is made by having an end of the face core extend a lesser distance toward the pivot pin opening. The transition area between the tail and the nose is formed by parabolic shaped upper and lower sections.
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