1139901

Information

• Patent Grant
• 1139901

• References
• Source

• Patent Number

  1,139,901

• Date Filed

  Not available

• Date Issued

  Tuesday, May 18, 1915
  109 years ago

• CPC

  • B66B13/08 - guided for horizontal movement
  • Y10T74/19726 - Thread pitch varies over axial length
  • Y10T74/19805 - Less than 360 degrees of contact between nut and screw

• US Classifications

  • 187 - Elevator, industrial lift truck, or stationary lift for vehicle
  • 049 - Movable or removable closures
  • 074 - Machine element or mechanism