Plural Drums Or Drum With Plural Distinct Sections Patents (Class 254/278)
With vehicle for supporting at least one drum (Class 254/279)
Having rotatable, cable guiding, pulley wheel element spaced from drums (Class 254/283)
Juxtaposed to cable at single locus (Class 254/287)
With means affixing at least one drum to supporting base and allowing movement between drum and base (Class 254/288)
Plural, distinct, drive motors (Class 254/290)
Each drum having plural, distinct drive sources or discrete drive trains (Class 254/293)
Having common drive source or mechanically interlinked drive trains (Class 254/294)
  • Combination of a hoistdrum and hoistcable for a winch
    Patent number: 4520999
    Abstract: A combination of a hoist drum and cable for a winch, in which the hoist cable is connected past its point of anchorage to the drum to a thinner auxiliary (breaking) cable, which is wound onto a spool within the drum, and an arrangement is provided to release the hoist cable from its anchorage to the drum so that, when the hoist cable is unwound from the drum and released from its anchorage to the drum, it may take the auxiliary cable with it, thereby unwinding it from its spool.
    Type: Grant
    Filed: March 1, 1984
    Date of Patent: June 4, 1985
    Inventors: Franciscus M. Philips, Koenraad A. de Jong
  • Continuous winch
    Patent number: 4468006
    Abstract: A continuous cable winch having at least one cable drum arranged within the winch frame, and a cable storage drum located externally of the frame for receiving a non-loaded cable section which is disposed with play in a guide which surrounds the cable and is located in the region between the winch frame and the cable storage drum. The ends of the guide are respectively secured on the winch frame and on the cable storage drum. The guide is flexible, and has radially open portions over its periphery. The guide may be a helical spring, the coils or windings of which are spaced from one another.
    Type: Grant
    Filed: September 23, 1982
    Date of Patent: August 28, 1984
    Assignee: Rotzler GmbH and Co. Spezialfabrik fur Seilwinden und Hebezeuge
    Inventor: Egon Frommherz
  • Remote three axis cable transport system
    Patent number: 4401406
    Abstract: An apparatus for accurately positioning an object such as a radiation probe within a defined three dimensional space has a pair of support bars extending along each of three perpendicular axes defining said space with bearing block supports slidably mounted along each set of support rods. A cable drive for each direction of movement is provided to move these bearing blocks including a drive motor, a drum assembly including a capstan and cable guide, a drive cable, and a plurality of pulleys spaced along the system to achieve a balanced movement of the system in the associated direction. The cable is aligned so that each section of its run is either perpendicular or parallel to its other sections and is arranged with the capstan and cable guide so that there is an increase of tension as the cable is reeled in and a decrease of tension as the cable is payed out to reduce the stretching of the cable as the apparatus is operated.
    Type: Grant
    Filed: October 31, 1980
    Date of Patent: August 30, 1983
    Inventor: Miguel Rovira