A self-climbing installation platform includes two decks including an upper deck and a lower deck. Each deck includes a guide element configured to support the deck movably on guide rails. Each deck includes a locking element configured to lock and unlock the deck to the guide rails and/or to guide rail fixing elements. The installation platform includes a lifting element configured to move the two decks along the guide rails in relation to each other, and at least one power source configured to provide power to the lifting element. The installation platform is configured to climb stepwise along the guide rails based on alternatingly locking and unlocking the lower deck and the upper deck to the guide rails and/or to the guide rail fixing elements with separate, respective locking elements and raising an unlocked deck with the lifting element.

A self-climbing installation platform includes two decks including an upper deck and a lower deck. Each deck includes a guide element configured to support the deck movably on guide rails. Each deck includes a locking element configured to lock and unlock the deck to the guide rails and/or to guide rail fixing elements. The installation platform includes a lifting element configured to move the two decks along the guide rails in relation to each other, and at least one power source configured to provide power to the lifting element. The installation platform is configured to climb stepwise along the guide rails based on alternatingly locking and unlocking the lower deck and the upper deck to the guide rails and/or to the guide rail fixing elements with separate, respective locking elements and raising an unlocked deck with the lifting element.

The present application is directed to a tree stand lift system for elevating a person into a tree or other structure. The tree stand lift system includes, in an embodiment, a hunting platform assembly for supporting a person; a hoist assembly positioned above the platform; a hoist cable secured to the hoist assembly and positioned to lift a person from the ground up to the platform.

The present application is directed to a tree stand lift system for elevating a person into a tree or other structure. The tree stand lift system includes, in an embodiment, a hunting platform assembly for supporting a person; a hoist assembly positioned above the platform; a hoist cable secured to the hoist assembly and positioned to lift a person from the ground up to the platform.

An apparatus includes a first platform, a second platform disposed above the first platform, a scaffolding connecting the first and second platforms including an upper support beam, a middle support beam, and a lower support beam, and a cable attached to the upper support beam. The lower support beam supports the first platform. The middle support beam supports the second platform. The upper support beam is disposed above the second platform.

An apparatus includes a first platform, a second platform disposed above the first platform, a scaffolding connecting the first and second platforms including an upper support beam, a middle support beam, and a lower support beam, and a cable attached to the upper support beam. The lower support beam supports the first platform. The middle support beam supports the second platform. The upper support beam is disposed above the second platform.

A self-climbing platform adapted to movably attach to, and hang from, a vertical structure for supporting a load with a cable connected to a main support connector comprising a retaining strap configured to surround at least a portion of the vertical structure, an adjustment lock attached to the retaining strap and a bracket. The bracket comprising an upper member connecting on one side to an adjustment bar and to a second side of a lower member to form a triangulated structure configured to a cantilevered position with respect to the vertical structure. The cable supporting the platform is connected to the bracket in a manner permitting transmission of the force required to support the self-climbing platform in a direction angled towards the vertical structure. The platform can rotate 360° around a tree or pole and can be used in forestry, civil or recreational fields.

A self-climbing platform adapted to movably attach to, and hang from, a vertical structure for supporting a load with a cable connected to a main support connector comprising a retaining strap configured to surround at least a portion of the vertical structure, an adjustment lock attached to the retaining strap and a bracket. The bracket comprising an upper member connecting on one side to an adjustment bar and to a second side of a lower member to form a triangulated structure configured to a cantilevered position with respect to the vertical structure. The cable supporting the platform is connected to the bracket in a manner permitting transmission of the force required to support the self-climbing platform in a direction angled towards the vertical structure. The platform can rotate 360° around a tree or pole and can be used in forestry, civil or recreational fields.

The invention relates to a continuous cable winch comprising a drive unit (20) and an output unit (60) for applying a drive force to a cable, which output unit is coupled to the drive unit (20). According to the invention, it is proposed that the drive unit (20) has a frequency converter (30) with a primary side (32) for drawing current from a power supply system (33) and a secondary side (36) for outputting an AC voltage (U.sub.U, U.sub.V, U.sub.W), an AC motor (40) for driving the continuous cable winch (10) at a variable rotation speed (ω.sub.1), which AC motor is supplied with the AC voltage (U.sub.U, U.sub.V, U.sub.W) by the frequency converter (30), a control unit (50) which is interconnected with the frequency converter (30) and the AC motor (40) for the purpose of controlling the drive unit (20), wherein the control unit (50) is designed to change the rotation speed (ω.sub.1) of the AC motor (40) by means of the frequency converter (30).

A roofer support apparatus for providing a level support on a pitched roof includes a base mount with a plurality of adjustment apertures and a chain slot. A mount bottom side is positioned on a pitched roof. A support is pivotably coupled to the base mount and receives a board. A pivot bracket is coupled to the support and is selectively engageable with two of the plurality of adjustment apertures to fix the pivot bracket to the base mount with the support horizontal. A chain is coupled to the base mount and is selectively engageable with the chain slot of the mount front side. A chain anchor is coupled to the chain. The chain anchor is secured to an opposite roof side of the pitched roof.