Abstract: There is provided a height adjustable desk (5) for placing on an existing desktop. The height adjustable desk (5) comprises a base frame (50) for placing on the existing desktop, a desktop (10) that is connected to the base frame (50) by first (40) and second (45) support members, and a gas strut, wherein the first and second support members (40, 45) are pivotally connected (41) to one another and are pivotable about the pivotal connection to raise and lower the desktop (10) from the base frame (50). The ends of the second support member (45) are slidable along the base frame (50) and along the desktop (10), and one of those ends is pivotably connected to a shuttle, the shuttle being drivable by the gas strut to slide along a shuttle frame of the desktop or base frame.

Abstract: There is provided a height adjustable desk (5) for placing on an existing desktop. The height adjustable desk (5) comprises a base frame (50) for placing on the existing desktop, a desktop (10) that is connected to the base frame (50) by first (40) and second (45) support members, and a gas strut, wherein the first and second support members (40, 45) are pivotally connected (41) to one another and are pivotable about the pivotal connection to raise and lower the desktop (10) from the base frame (50). The ends of the second support member (45) are slidable along the base frame (50) and along the desktop (10), and one of those ends is pivotably connected to a shuttle, the shuttle being drivable by the gas strut to slide along a shuttle frame of the desktop or base frame.

Abstract: Work platform, comprising an elevatable platform deck provided with a rail system having one or more rails extending in a longitudinal direction along a trailing edge of the deck; a trolley engaging with the one or more rails and configured for being moved in the longitudinal direction; and a crane device mounted on the trolley, configured for lifting and moving objects above the platform surface.

Abstract: A self-contained hoist device, rail device and hoist system for hoisting building materials, comprising a housing; and lifting beam extending from the housing; wherein a hoist motor for driving a winch provided with a hoisting wire and a battery pack for powering the hoist motor are arranged inside the housing, and a distal end of the hoisting wire is adapted to be attached to a fixing point above the self-contained hoist device, whereby operation of the hoist motor may cause the housing and lifting beam to be raised and lowered, respectively.