1721227

Information

• Patent Grant
• 1721227

• References
• Source

• Patent Number

  1,721,227

• Date Filed

  Not available

• Date Issued

  Tuesday, July 16, 1929
  95 years ago

• CPC

  • G05G5/06 - for holding members in one or a limited number of definite positions only
  • G05G2700/08 - Control mechanisms for locking members in one or more positions
  • Y10S254/08 - Screw jacks, plural section nut
  • Y10T74/19735 - Nut disengageable from screw
  • Y10T74/19805 - Less than 360 degrees of contact between nut and screw
  • Y10T74/2063 - Stops
  • Y10T74/20666 - Lever engaging

• US Classifications

  • 254 - Implements or apparatus for applying pushing or pulling force
  • 074 - Machine element or mechanism
  • 188 - Brakes
  • 248 - Supports
  • 269 - Work holders