A mounting bracket a generally C-shaped arrangement for receiving a fork carrier beam of a drywall crane fork assembly. A removable sidewall carried by the mounting bracket for enclosing the mounting bracket around the fork carrier beam. A tensioning member carried by the removable sidewall for biasing against the fork carrier beam. An extension arm carried in an extension arm port, wherein the extension arm has a generally L-shaped arrangement with a first arm portion adjustably carried in the extension arm port, and a second arm portion disposed at a distal end of the first arm portion and extending perpendicular to the first arm portion. Accordingly, the mounting bracket is removably mountable around the fork carrier beam and provides the extension arm extending in an adjustable arrangement perpendicular to lifting forks of the drywall crane fork assembly to assist with sliding drywall off the fork assembly over an extended distance.

A lifting clamp for an object comprises a plurality of plates stacked and connected together to form seat for a portion of the object, a lifting portion for connecting to a crane or other machine, a pivot leg pivotally connected to the stacked plates for opening the seat, and a lock for selectively locking the pivot leg in a clamped position whereby it grips the object.

A lifting clamp for an object comprises a plurality of plates stacked and connected together to form seat for a portion of the object, a lifting portion for connecting to a crane or other machine, a pivot leg pivotally connected to the stacked plates for opening the seat, and a lock for selectively locking the pivot leg in a clamped position whereby it grips the object.

A pallet lifter for use with a crane enables lifting of materials on a pallet, and then unloading of the materials at one or more locations, such as on a roof of a building. The pallet lifter may include a cage or a retainer frame that contains the material, with a pusher of the lifter used to push out individual portions of the materials. The pusher may unload the material from the top of the pallet of material, such as by sliding it down a ramp. The pusher alternatively may unload the material from the bottom of the stack on the pallet, by pushing it through a slot in the cage. For top-unloading embodiments the pallet lifter may include an assembly for changing the position of the pusher relative to the frame and the pallet, for example moving the pusher downward layer by later as the materials are unloaded.

A carrying means (1) for transporting objects, having a carrying limb (2) and a load handling limb (3), wherein at least one rotatably mounted load support is arranged in the region of a free end (7) of the load handling limb (3), wherein the load support is a radial segment (4) which lies on the free end (7) of the load handling limb (3) and, together therewith, forms a load-carrying bearing and at least one inner surface of the load handling limb (3) forms a bearing shell (5) on the free end (7) and corresponds to the radial segment (4).

A pallet lifter for use with a crane enables lifting of materials on a pallet, and then unloading of the materials at one or more locations, such as on a roof of a building. The pallet lifter may include a cage or a retainer frame that contains the material, with a pusher of the lifter used to push out individual portions of the materials. The pusher may unload the material from the top of the pallet of material, such as by sliding it down a ramp. The pusher alternatively may unload the material from the bottom of the stack on the pallet, by pushing it through a slot in the cage. For top-unloading embodiments the pallet lifter may include an assembly for changing the position of the pusher relative to the frame and the pallet, for example moving the pusher downward layer by later as the materials are unloaded.

A device for connecting and releasing a connection between two elements. The device comprises a body to which an attached element is fastened and to which a first connecting member is pivotably attached. The first connecting member is releasably connected with a second connecting member fastened to a detachable element. A release member is movably attached to the body. Between the body and the release member there is a resilient element. A connecting and releasing pivotal movement of the first connecting member is caused by acting on the first connecting member with the active release member and/or the active second connecting member. The device comprises an adjusting assembly which allows a user to change a magnitude of a force needed to release the connection.

A device for connecting and releasing a connection between two elements. The device comprises a body to which an attached element is fastened and to which a first connecting member is pivotably attached. The first connecting member is releasably connected with a second connecting member fastened to a detachable element. A release member is movably attached to the body. Between the body and the release member there is a resilient element. A connecting and releasing pivotal movement of the first connecting member is caused by acting on the first connecting member with the active release member and/or the active second connecting member. The device comprises an adjusting assembly which allows a user to change a magnitude of a force needed to release the connection.

A balanced cantilevered feeding apparatus for coupling with a jib, and a complementary method for its operation, configured to facilitate depositing and removing of a load through an opening in a building. The apparatus includes two spaced apart upright hoisting assemblies disposed on the jib, and a fly beam hoisted, balanced, and selectively positioned along a lateral axis by the two hoisting assemblies. A load securing member is mounted on a cantilevered extension portion of the fly beam, wherein the member extends beyond one of the two hoisting assemblies toward the building, and a counterweight is connected to the fly beam in the vicinity of another of the two hoisting assemblies.

A balanced cantilevered feeding apparatus for coupling with a jib, and a complementary method for its operation, configured to facilitate depositing and removing of a load through an opening in a building. The apparatus includes two spaced apart upright hoisting assemblies disposed on the jib, and a fly beam hoisted, balanced, and selectively positioned along a lateral axis by the two hoisting assemblies. A load securing member is mounted on a cantilevered extension portion of the fly beam, wherein the member extends beyond one of the two hoisting assemblies toward the building, and a counterweight is connected to the fly beam in the vicinity of another of the two hoisting assemblies.