| Patents for B66C 23 - Cranes comprising essentially a beam, boom or triangular structure acting as a cantilever and mounted for translatory or swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib cranes, derricks or tower cranes (16,687) |
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| 09/18/1979 | CA1062479A1 Pipelaying machine for oil pipelines, conduits and the like |
| 09/11/1979 | US4167278 Main frame construction for vehicles |
| 09/11/1979 | CA1062233A1 Apparatus for actuating operating valve unit for winch |
| 09/05/1979 | EP0003939A2 Improvements in hydraulically operated lifting devices |
| 09/04/1979 | US4166712 Lift truck with tiltable and rotatable lifting yoke |
| 09/04/1979 | US4166602 Counterbalancing mechanism for X-ray tubeheads |
| 09/04/1979 | US4166544 Pipe-laying machine for oil pipelines, conduits and the like |
| 09/04/1979 | US4166542 Telescoping lattice boom crane |
| 08/28/1979 | US4165702 Method of constructing a twin hulled, column stabilized, semi-submersible derrick barge |
| 08/22/1979 | EP0003577A1 Speed control for the slewing and/or lifting gear of a crane |
| 08/21/1979 | US4165005 Method and apparatus for the installation of the support element of a crane |
| 08/21/1979 | CA1060848A1 Device for anti-rolling signalling for pipe-laying tractors |
| 07/17/1979 | US4161344 Method of and means for rotatably supporting a load |
| 07/17/1979 | CA1058572A1 Crane boom lift cylinder journal locking and release assembly |
| 07/17/1979 | CA1058571A1 Side shoe assembly for a crane boom |
| 07/17/1979 | CA1058570A1 Fly and jib assembly for crane |
| 07/10/1979 | US4160558 Carrier frame for mobile crane |
| 07/03/1979 | US4159776 Tower crane |
| 07/03/1979 | CA1057708A1 Track laying tractor with movable boom which can be tilted laterally |
| 06/19/1979 | CA1056805A1 Outrigger system for vehicles |
| 06/12/1979 | US4157736 Overload protection apparatus for hydraulic multi-function equipment |
| 06/12/1979 | CA1056123A1 Method and arrangement for staying climb rods for co-operation with so-called climbing jacks |
| 06/05/1979 | USRE30021 Material handling machine |
| 05/29/1979 | US4156331 Multi-section telescopic boom |
| 05/22/1979 | US4155538 Device for lowering a load, for example a diving bell from a vessel from a spot above the water level to a spot beneath the water level |
| 05/22/1979 | US4155464 Offset jib for cranes |
| 05/22/1979 | US4155463 Hoisting assembly |
| 05/15/1979 | US4154316 Apparatus for changing axle loads of a crane vehicle combination |
| 05/08/1979 | US4153167 Cross tube construction |
| 05/08/1979 | CA1054094A1 Mounting apparatus for a counterweight assembly |
| 05/08/1979 | CA1053919A1 Continuous laying of pipes of large diameters |
| 05/01/1979 | US4151786 Outrigger beam and jack construction |
| 05/01/1979 | CA1053589A1 Boom arm safety lock |
| 04/24/1979 | US4150755 Panel placing device |
| 04/24/1979 | US4150754 Utility crane |
| 04/24/1979 | US4150635 Twin hull semi-submersible derrick barge |
| 04/10/1979 | US4148531 Self-aligning slide pads for telescopic boom |
| 03/20/1979 | US4144973 Combination hoist and mount |
| 03/20/1979 | US4144713 Patient lifting device |
| 03/13/1979 | CA1050395A1 Hydraulic boom-lift system with selective speeds |
| 03/06/1979 | US4142710 Automatic extension control system for jacking device |
| 02/27/1979 | US4141455 Means for storing and connecting jib on telescopic crane boom |
| 02/27/1979 | US4141454 Crane with "Z" configured boom |
| 02/27/1979 | CA1049453A1 Self-erecting mast and boom |
| 02/13/1979 | CA1048378A1 Double-acting hydraulic cylinder having two pistons arranged for coaxial movement relative thereto |
| 01/24/1979 | EP0000443A1 Hydraulic jack and patient lifting device using it |
| 01/23/1979 | US4135627 Operator balanced, manually powered crane |
| 01/23/1979 | CA1047022A1 Hydraulic jack with mechanical locking device |
| 01/16/1979 | US4134500 Actuator linkage for mobile derricks and the like |
| 01/16/1979 | US4134487 Device for supporting or guiding a rolling load |
| 01/16/1979 | US4134236 Side shoe assembly for a crane boom |
| 01/09/1979 | US4133411 Extensible boom |
| 01/09/1979 | CA1045848A1 Crane load indicating arrangement |
| 01/02/1979 | US4133032 Crane load indicating arrangement |
| 01/02/1979 | US4132324 Stabilizer assembly |
| 01/02/1979 | US4132317 Pipe laying crane |
| 01/02/1979 | US4132041 Telescopic apparatus |
| 01/02/1979 | US4132040 Multi-section lifting boom |
| 01/02/1979 | CA1045586A1 Telescopic boom quick retract hydraulic circuit |
| 01/02/1979 | CA1045330A1 Extensible rod |
| 12/26/1978 | US4131078 Collapsible crane backhitch and overload signal system |
| 12/19/1978 | CA1044782A1 Apparatus for electrolytically processing aluminium material |
| 12/19/1978 | CA1044651A1 Swing drive assembly with automatic shut-down control |
| 12/12/1978 | CA1044186A1 Extension and retraction means for the telescopic boom assembly of a crane |
| 12/05/1978 | US4128229 Hoist apparatus with dual mast structure and compound power transmission system |
| 12/05/1978 | CA1043745A1 Sea crane tiedown |
| 11/21/1978 | US4126298 Compensation device for a crane |
| 11/21/1978 | US4125974 Control system for telescopic boom |
| 11/14/1978 | US4125193 Climbing device for climbing crane |
| 11/07/1978 | US4124226 Electrohydraulic outrigger control system |
| 11/07/1978 | CA1041918A1 Overload control for lifting boom |
| 10/24/1978 | CA1041049A1 Apparatus for equalizing the axle loads of a self-propelled crane |
| 10/24/1978 | CA1041048A1 Boom assembly |
| 10/24/1978 | CA1041047A1 Tower crane |
| 10/24/1978 | CA1041046A1 Jib crane |
| 10/17/1978 | CA1040593A1 Stop for crane boom |
| 10/17/1978 | CA1040592A1 Telescoping boom with hydraulic actuation |
| 10/10/1978 | US4119165 Articulated vehicles |
| 10/10/1978 | US4119118 Automatic machine motion restricting mechanism |
| 10/10/1978 | CA1040285A1 Crane boom angle indication and warning system |
| 10/10/1978 | CA1040143A1 Rotatable bed and roller assembly |
| 10/03/1978 | US4118054 Hydraulic device for a stabilizing beam in a machine used on uneven terrain |
| 10/03/1978 | US4118010 Multi-purpose lifting and mounting assembly |
| 09/26/1978 | US4116467 Outrigger |
| 09/26/1978 | CA1039239A1 Channel and plate telescopic crane boom |
| 09/19/1978 | CA1038814A1 Stiff-leg crane |
| 09/19/1978 | CA1038813A1 Crane boom with angular side frame reinforcements |
| 09/19/1978 | CA1038643A1 System for construction of monolithic concrete tanks and silos |
| 09/12/1978 | US4113112 Constant balance crane |
| 09/12/1978 | US4112649 Boom section for telescopic crane boom |
| 09/05/1978 | US4111316 Truck mounted hoist |
| 09/05/1978 | CA1037910A2 Double slewing crane construction |
| 08/29/1978 | US4109798 Crane having overload release means |
| 08/29/1978 | US4109681 Hoisting crane for building purposes |
| 08/22/1978 | US4108317 Continuous laying of pipes of large diameter |
| 08/15/1978 | US4106631 Fly and jib assembly for crane |
| 08/08/1978 | US4105347 Gin pole connector |
| 08/01/1978 | US4103783 Platform crane with counterweight and boom carrier support linkages |
| 07/18/1978 | US4100707 Telescopic boom for portable cranes |
| 07/11/1978 | US4099635 Gondola car loader |