from The Century Dictionary and Cyclopedia

  • n. A screw by which cams or timing devices may be so adjusted as to do their work as desired.
  • n. A set-screw; a screw by which pulleys or collars are fastened or adjusted on a shaft. The screw passes radially through hub or collar, and bottoms or beds upon the shaft, holding the hub or collar from slipping round or lengthwise. Sometimes the set-screw enters a counterbore made for it in the circumference of the shaft.


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