Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements

BPERFORMING OPERATIONS TRANSPORTING B66Lifting technology B66CCRANES LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES

B66C23/00Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements

B66C23/005with balanced jib B66C23/02with non-adjustable and non-inclinable jibs mounted solely for slewing movements B66C23/022Pivot axis common with column B66C23/025with particular mounting for base of column B66C23/027Pivot axis separated from column axis B66C23/04with jibs the effective length of which is variable in operation B66C23/06with jibs mounted for jibbing or luffing movements B66C23/08and adapted to move the loads in predetermined paths B66C23/10the paths being substantially horizontal Level-luffing jib-cranes B66C23/12with means for automatically varying the effective length of the hoisting rope or cable B66C23/14with means B66C23/16with jibs supported by columns B66C23/163where only part of the column rotates B66C23/166Simple cranes with jibs which may be fixed or can slew or luff B66C23/18specially adapted for use in particular purposes B66C23/185for use erecting wind turbines B66C23/20with supporting couples provided by walls of buildings or like structures B66C23/201with supporting couples provided from above B66C23/202with supporting couples provided from below B66C23/203with supporting couples provided by posts B66C23/205for use on top of roofs B66C23/206with supporting couples provided by iso containers B66C23/207with supporting couples provided by wind turbines B66C23/208with supporting couples provided from the side B66C23/22Window cranes B66C23/24Mobile wall cranes B66C23/26for use on building sites constructed B66C23/28constructed to operate at successively higher levels B66C23/283with frameworks composed of assembled elements B66C23/286with locking devices B66C23/30with frameworks composed of telescopic elements B66C23/305with locking devices B66C23/32Self-hoisting cranes B66C23/34Self-erecting cranes B66C23/342with telescopic elements B66C23/344adapted for transport purposes B66C23/346with locking devices B66C23/348the erection being operated by jacks B66C23/36mounted on road or rail vehicles Manually-movable jib-cranes for use in workshops Floating cranes B66C23/365dismantable into smaller units for transport purposes B66C23/38with separate prime movers for crane and vehicle B66C23/40with a single prime mover for both crane and vehicle B66C23/42with jibs of adjustable configuration B66C23/44Jib-cranes adapted for attachment to standard vehicles B66C23/46Mobile jib-cranes with non-slewable jibs B66C23/48Manually-movable jib cranes for use in workshops B66C23/485for lifting and moving engines B66C23/50mounted on railway vehicles B66C23/52Floating cranes B66C23/525Double slewing cranes on ships B66C23/53including counterweight or means to compensate for list, trim, or skew of the vessel or platform B66C23/54with pneumatic or hydraulic motors B66C23/545with arrangements for avoiding dead centre problems during cylinder motion B66C23/56of the reciprocating type B66C23/58arranged to carry out a desired sequence of operations automatically B66C23/585electrical B66C23/60Derricks B66C23/605employing ships' masts B66C23/62Constructional features or details B66C23/64Jibs B66C23/66Outer or upper end constructions B66C23/68foldable or otherwise adjustable in configuration B66C23/70constructed of sections adapted to be assembled to form jibs or various lengths B66C23/701telescopic B66C23/702with a jib extension boom B66C23/703telescoped by flexible elements B66C23/705telescoped by hydraulic jacks B66C23/706telescoped by other means B66C23/707guiding devices for telescopic jibs B66C23/708locking devices for telescopic jibs B66C23/72Counterweights or supports for balancing lifting couples B66C23/74separate from jib B66C23/76and movable to take account of variations of load or of variations of length of jib B66C23/78Supports B66C23/80hydraulically actuated B66C23/82Luffing gear B66C23/821Bracing equipment for booms (Abspannstütze) B66C23/823Bracing equipment acting in vertical direction B66C23/825Bracing equipment acting in horizontal direction B66C23/826Bracing equipment acting at an inclined angle to vertical and horizontal directions B66C23/828where the angle is adjustable B66C23/84Slewing gear B66C23/86hydraulically actuated B66C23/88Safety gear B66C23/90Devices for indicating or limiting lifting moment B66C23/905electrical B66C23/92Snubbers or dashpots for preventing backwards swinging of jibs B66C23/94for limiting slewing movements