Accession Number : ADD001363

Title :   Crane Attachment for Dampening Swinging Motion.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Mundy,Charles S

Report Date : 26 Nov 1974

Pagination or Media Count : 8

Abstract : The patent discloses a crane which has an apparatus for dampening swinging motion of a load. This is accomplished by means, mounted to the crane, for allowing motion of the load in two spearate planes and means for braking the movement of the load within each of said planes. The load may be restrained for movement in one plane by rotatably connecting the lifting end of the crane boom about the longitudinal axis of the boom and the load may be restrained within the other plane by pivotally connecting a cable restraining means to said lifting end of the boom. Selective braking action to the load within the planes dampens its swinging movement.

Descriptors :   *Cranes, *Booms(Equipment), *Restraint, *Patents, Braking, Loads(Forces), Hoists, Positioning devices(Machinery)

Subject Categories : Construction Equipment, Materials & Supplies
      Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE