An apparatus and method for manipulating a pole relative to a base fixed in the ground. The base is gripped and provides a rigid reference point. The pole is cradled and an actuator provides force to move the pole relative to the reference point. This can include detaching the pole from the base as well as inserting the pole on the base. As an optional feature, a pivot mechanism can be associated with the combination to allow the pole to be pivoted with respect to the base to lower the pole for inspection and maintenance, or to erect the pole to be vertically aligned and then seated onto the base.
A wind energy tower erection device is disclosed together with the method of assembling the same and the method of utilizing the device to erect a wind energy tower. The tower erection device successively places tower sections one upon the other until the tower is erected.
A self-lifting vertically rising mast provides a possibility to be erected without use of high cranes. An improved self-lifting vertically rising mast includes at least three of a plurality of main frames and at least three of a plurality of main supports, wherein each main frame is rigidly connected to the appropriate main support and comprises the base, U-form directors, lifting shoe inserted into the U-slots of the U-form directors, the hydraulic jack installed on the base of the main frame, pusher including the rests, hollow upright leant on the sleeve of the bush, comprising the pivotable portion having the slots providing passage for the rests, the pair of the guiding shoes longitudinally movable along the auxiliary directors, the holder located between the auxiliary directors and fixing the appropriate upright in the vertical position, and the controllable supports, comprising the stand, the extendable screw, and the nut, which fixes the desirable position (extension) of the extendable screw.
Method for erecting an emergency mast (1) for a power line comprising mast elements placed one on top of another, comprising the following steps: arranging a guide device (19) at the location where the emergency mast has to be placed; arranging a first mast element (5) adjacently of the guide device; raising the first mast element by means of the guide device to a height such that a following mast element can be placed under the first mast element; placing a following mast element under the first mast element and connecting the following mast element to the mast element situated thereabove; raising the thus obtained combination by means of the guide device to a height such that a following element can be placed under the combination; repeating the latter two steps until the mast has reached the required height; and removing the guide device.
The invention relates to a device for positioning an upright with a desired orientation in order to mount thereon a superstructure such as a post of a pylon. The device is characterized by a frame, and a rotation mechanism connected to the frame for rotation in a plane round a standing axis, wherein the rotation mechanism comprises coupling means for coupling the upright thereto at the desired angle of inclination.
A light pole erector and remover (10) for pedestal mounted light poles (74) that is comprised of three major elements: a transportation dolly (20), a pedestal attaching and lifting mechanism (22), and a pole tilting mechanism (24). The dolly (20) has fixed and steerable wheels attached to a tongue (34). The mechanism (22) is hinged to the dolly (20) and has a pair of base support arms (52) that embrace a concrete pedestal (56). Each arm (52) has a ratchet buckle tie-down (58) used for encircling the pedestal (56) and securing the mechanism (24) to the pedestal (56). The mechanism (24) is pivotally affixed to the mechanism (22) and includes a pair of ratchet buckle tie-downs (58) that encircle and secure the pole (74) to the invention (10). The pole (74) is horizontally positioned on the tilting mechanism (24), tied down and rotated to a vertical position over the concrete pedestal (56) and then lowered for attachment to the pedestal (56). The invention (10) also permits the pole (74) to be removed for repair or replacement.
