2489725

Information

• Patent Grant
• 2489725

• References
• Source

• Patent Number

  2,489,725

• Date Filed

  Not available

• Date Issued

  Tuesday, November 29, 1949
  76 years ago

• CPC

  • B23Q5/167 - electrically-operated
  • B23Q15/08 - Control or regulation of cutting velocity
  • F16H2009/166 - Arrangements of two or more belt gearings mounted in series
  • Y10T29/5111 - Pulley or wheel
  • Y10T29/5179 - Speed controller
  • Y10T74/19167 - In series plural interchangeably locked nonplanetary units
  • Y10T74/19437 - Electrically operated
  • Y10T82/2554 - Speed changing gear
  • Y10T82/2556 - Speed change gears for maintaining constant cutting speed
  • Y10T409/309352 - Cutter spindle or spindle support

• US Classifications

  • 074 - Machine element or mechanism
  • 029 - Metal working
  • 082 - Turning
  • 318 - Electricity: motive power systems
  • 409 - Gear cutting, milling, or planing