The invention relates to a door assembly (1) for a sealed enclosure, said enclosure comprising a wall having a wall portion (20) defining at least one passage opening therein, said door assembly (1) comprising a flange (3) intended for being attached to the wall portion (20), characterized in that the flange (3) comprises two flange elements (3a, 3b) assembled together, one of the flange elements (3a) defining a ring inside the enclosure, the other flange element (3b) defining a ring outside the enclosure, and means for clamping at least one of the two flange elements (3a, 3b) against the wall portion (20).

A wind turbine tower access panel is disclosed and is removably fixable at a service aperture in a tower wall to thereby close the aperture. The access panel is generally planar and extends radially about an axis normal thereto. Additionally, the access panel includes a set of two or more fixing elements configured to securely fix the access panel in place at the aperture. Each fixing element includes an axial clamp, the clamp including an anchor fixed to the access panel, a clamping force adjuster and a clamp head having a clamping surface. The clamp head includes a relatively deformable resilient material which deforms under an applied clamping load of the clamp thereby applying a clamping force to the tower wall.

A door frame 1 has a frame post 3 which is secured with a rear side 5 against a reveal 7 of a wall opening 9 by means of a number of wall clamps 13. Each wall clamp 13 has two clamping parts 15, 17, each consisting of a fastening part 19, 21 and a clamping jaw 23, 25. At the rear 5, the frame post 3 is provided with a groove 27 which extends over the entire length of the frame post 3 and is present at an angle 29 of 10-50 degrees to the rear side. The fastening part 21 of the clamping part 17 partly protrudes into the groove 27 and is displaceable in and out of the groove 27 by turning screws 31 more or less in the door frame 3, which screws protrude through holes 35 present in the clamping jaw 25.

An alignment device, systems and methods where the device includes a guide, a support and a connector which engages the guide and the support. The guide may be a relatively flat piece attachable to and edge of a frame for framing a window or a door. In one aspect the guide member a slot, support attaches to an object such as a window or a door (or is integral with an object such as a window or door) which is to be aligned with the frame. The connector threads within a hole associated with the object, such as a hole of a support connected to a jamb of a window. The connector engages a slot of the guide and the device allows for desired alignment of an object within a frame by transferring rotational movement to linear movement.

The invention relates to a wind turbine tower access panel, which panel is removably fixable at a service aperture in a tower wall to thereby close said aperture; said access panel being generally planar and extending radially about an axis normal thereto, said access panel comprising a set of two or more fixing elements configured to securely fix said access panel in place at a said aperture; wherein each said fixing element comprises an axial clamp, said clamp comprising an anchor fixed to said access panel, a clamping force adjuster and a clamp head having a clamping surface; said clamp head comprising a relatively deformable resilient material which deforms under an applied clamping load of said clamp thereby applying a clamping force to said tower wall.

A corner bracket for assembly of two boards of a window mounting collar into a collar corner and for affixing said window mounting collar to an exterior face of a building faade so as to surround a window opening, said corner bracket; comprising two holding plates and two base arms, all four adapted for extending in planes parallel with and having back surfaces abutting the exterior face of the building faade in an affixed position of the collar. The bracket further comprises two flanges and two abutment plates adapted to extend away from said exterior face in an affixed position of the collar. Each abutment plate is positioned at a mutual distance from and in parallel with an associated said flange, each abutment plate being connected to the associated said flange via an associated said holding plate; so as to be able to hold said boards together to form said window collar corner, each board being received between a respective flange and its associated abutment plate.

A curtain wall or window wall for a building including a frame including a plurality of frame units composed of frame members, wherein the frame members comprise mullions. A plurality of infill panels are supported by and received within the plurality of frame units, and one or more thermally insulating elements. Each frame unit comprises a plurality of metal fastening elements for retaining infill panels within a corresponding one of the frame units. Each metal fastening element comprises a first end in contact with the mullions and a second end spaced from the first end. The second end of each metal fastening element, having the first end in contact with the mullions forming a first outer edge of the frame, contacts one of the thermally insulating elements. Each of the thermally insulating elements comprises at least one means for attachment to a pressing.