A takeout jig (1) includes: a support part (20) which is configured to be pulled up to take out a silicon rod (10) and which is configured to support the silicon rod (10) by clamping one or more end portions (15) of the silicon rod (10); one or more first cords (30) which are equal in number to or greater in number than the silicon rod (10) and which are configured to pull up the support part (20); and one or more second cords (40) which are configured to hold the silicon rod (10) by wrapping around the silicon rod (10).

A takeout jig (1) includes: a support part (20) which is configured to be pulled up to take out a silicon rod (10) and which is configured to support the silicon rod (10) by clamping one or more end portions (15) of the silicon rod (10); one or more first cords (30) which are equal in number to or greater in number than the silicon rod (10) and which are configured to pull up the support part (20); and one or more second cords (40) which are configured to hold the silicon rod (10) by wrapping around the silicon rod (10).

The invention relates to a tower crane, preferably a rotary tower crane, particularly preferably a top-slewing crane, comprising a jib and a counter-jib. The jib and/or counter-jib is hinged to the tower top and/or rotating platform by means of at least one connection point. A first connection part of the at least one connection point has a concave stop surface, and a second connection part of the connection point comprises a convex counter-stop surface, wherein the counter-stop surface of the second connection part acts on the stop surface of the first connection part by means of a pressure force in order to produce a force-fitting connection between the connection parts.

A lifting rig includes a cradle and a load transfer device. The load transfer device is arranged to draw in a payload to the cradle or deliver a payload from the cradle. The lifting rig is arranged to be lifted to an elevated space and the load transfer device is arranged to draw in or deliver the payload within the elevated space.

A lifting rig includes a cradle and a load transfer device. The load transfer device is arranged to draw in a payload to the cradle or deliver a payload from the cradle. The lifting rig is arranged to be lifted to an elevated space and the load transfer device is arranged to draw in or deliver the payload within the elevated space.

A lifting lug for a heating, ventilation, and/or air conditioning (HVAC) unit includes a first flange configured to be secured against a surface of the HVAC unit, a second flange configured to be secured against the surface of the HVAC unit, and an intermediate portion extending between the first flange and the second flange. The intermediate portion is offset from the first flange and the second flange to form a space between the intermediate portion and the surface of the HVAC unit in an installed configuration of the lifting lug, and the intermediate portion includes an edge and a notch formed in the edge and through a thickness of the intermediate portion.

Sling bars, lift systems, and methods of attaching a subject sling to a sling bar are disclosed. A sling bar includes a bar extending in a longitudinal direction, a protrusion extending from an upper part of the bar, a sling attachment portion extending to define a receiving aperture, a terminus of the sling attachment portion facing the protrusion, defining an opening into the receiving aperture, the protrusion defining an undercut portion of the receiving aperture, a retention latch pivotally coupled to the protrusion and defining an engagement face that selectively interfaces with a stop surface at the terminus in a closed position to cover the opening, the retention latch being constrained to pivot to an open position whereby the retention latch ceases to interface with the stop surface at the terminus, and a biasing mechanism coupled to the retention latch to force the retention latch toward the closed position.

Sling bars, lift systems, and methods of attaching a subject sling to a sling bar are disclosed. A sling bar includes a bar extending in a longitudinal direction, a protrusion extending from an upper part of the bar, a sling attachment portion extending to define a receiving aperture, a terminus of the sling attachment portion facing the protrusion, defining an opening into the receiving aperture, the protrusion defining an undercut portion of the receiving aperture, a retention latch pivotally coupled to the protrusion and defining an engagement face that selectively interfaces with a stop surface at the terminus in a closed position to cover the opening, the retention latch being constrained to pivot to an open position whereby the retention latch ceases to interface with the stop surface at the terminus, and a biasing mechanism coupled to the retention latch to force the retention latch toward the closed position.

A crane hook rotation-limiting device includes a mounting base and a plunger extending through a hole formed in the mounting base so as to be movable with respect to the mounting base. A spring first bearing portion is connected to the plunger so as to be movable with the plunger. A spring second bearing portion is positioned opposite the spring first bearing portion so as to be fixed with respect to the plunger during movement of the plunger. A spring member extends between the spring first bearing portion and the spring second bearing portion. A pair of crane hook rotation-limiting devices as described herein may be mounted to a crane hook assembly to control rotation of the crane hook during movement of the hook when the hook supports a sling spreader or a sling spreader and a die (or other item of tooling).

A system and method for removing or installing wind turbine blades, comprising a single spreader-type bar fitted with specialized end units with rotatable chain and/or cable for supporting the blade at two or more lift points. The inventive device allows for a single-crane lift of a wind turbine blade, with the ability to remotely control and fine tune the level and pitch of the blade during all portions of the lifting, lowering, installation and/or removal operations.