Patents Assigned to Washington Logging Equipment, Inc.
  • System for inhauling and outhauling lines
    Patent number: 4353527
    Abstract: A cable hauling system includes a drive shaft, a haulback shaft with a haulback drum mounted thereon, and a main shaft with a main drum mounted thereon. A first pair of gears operatively associated with the drive shaft and the main shaft includes a positively acting clutch for selectively coupling the drive shaft to the main shaft in driving relationship through the first pair of gears. Second and third pairs of gears are operatively associated with the drive shaft and the haulback shaft. An energy-dissipating, power transfer device is associated with both the second and third pairs of gears to selectively couple one or the other of the second and third pairs of gears in driving relationship with the haulback shaft.
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: October 12, 1982
    Assignee: Washington Logging Equipment, Inc.
    Inventor: Frederic E. Langford
  • System for inhauling and outhauling lines
    Patent number: 4295636
    Abstract: A cable hauling system includes a drive shaft, a haulback shaft with a haulback drum mounted thereon, and a main shaft with a main drum mounted thereon. A first pair of gears operatively associated with the drive shaft and the main shaft includes a positively acting clutch for selectively coupling the drive shaft to the main shaft in driving relationship through the first pair of gears. Second and third pairs of gears are operatively associated with the drive shaft and the haulback shaft. An energy-dissipating, power transfer device is associated with both the second and third pairs of gears to selectively couple one or the other of the second and third pairs of gears in driving relationship with the haulback shaft.
    Type: Grant
    Filed: November 16, 1978
    Date of Patent: October 20, 1981
    Assignee: Washington Logging Equipment, Inc.
    Inventor: Frederic E. Langford