Abstract: A stand with at least three stand legs (2, 3, 4), which is embodied to fasten a leveling, plumbing, or angular calibration device (5), is provided, with the stand legs (2, 3, 4) being embodied rotational around a common axis (6) at their ends facing each other. Each stand leg (2, 3, 4) is bent by the same angle (?) at a distance from the axis (6), with a freely projecting section (14) of one leg being provided with a threaded bolt (15) freely protruding transversely thereto.

Abstract: In a leveling, plumbing, and angular calibration instrument a swinging suspended vertical body (4) is provided, which carries groups (5, 6) of light elements and/or lenses and optionally a beam splitter and/or beam converging element provided to create and emit laser light. A clamping element (7) is allocated to the vertical body (4) to block a swinging motion in an exactly central position, if necessary, which is formed from two clamping shoes (8, 9) arranged opposite each other, which can be synchronously displaced in reference to the clamping section (10) of the vertical body (4).

Abstract: A stand with at least three stand legs (2, 3, 4), which is embodied to fasten a leveling, plumbing, or angular calibration device (5), is provided, with the stand legs (2, 3, 4) being embodied rotational around a common axis (6) at their ends facing each other. Each stand leg (2, 3, 4) is bent by the same angle (?) at a distance from the axis (6), with a freely projecting section (14) of one leg being provided with a threaded bolt (15) freely protruding transversely thereto.

Abstract: In a leveling, plumbing, and angular calibration instrument a swinging suspended vertical body (4) is provided, which carries groups (5, 6) of light elements and/or lenses and optionally a beam splitter and/or beam converging element provided to create and emit laser light. A clamping element (7) is allocated to the vertical body (4) to block a swinging motion in an exactly central position, if necessary, which is formed from two clamping shoes (8, 9) arranged opposite each other, which can be synchronously displaced in reference to the clamping section (10) of the vertical body (4).

Abstract: The invention relates to a device for measuring distances having a distance measurer (1) and a stop element (3; 3?; 3?) enabling precise and mechanically stabile fixed installation on any form of top surfaces. Interchangeable stop elements (3; 3?; 3?) are disposed on a distance measurer (1), and embodied on the side thereof which is orientated towards the object to be measured in such a way that exact installation can take place on the surface of the object. Another use of the stop element is that it can inc;lude a receiving element for securing a distance measurer (1), whereby the distance measurer is pivotally mounted about at least one horizontal rotational axis (12) whilst the distance measurer (1) is in use. The stop element (3?) is formed in such a way that it is possible to adjust the device and subsequently measure different measuring points (C,D) without having to take geometric changes into account as a result of said adjustment.

Abstract: The invention relates to a device for measuring distances comprising a distance measurer (1) and a stop element (3; 3′; 3″) enabling precise and mechanically stabile fixed installation on any form of top surfaces. Interchangeable stop elements (3; 3′; 3″) are disposed on a distance measurer (1), and embodied on the side thereof which is orientated towards the object to be measured in such a way that exact installation can take place on the surface of the object. Another use of the stop element is that it can comprise a receiving element for securing a distance measurer (1), whereby the distance measurer is pivotally mounted about at least one horizontal rotational axis (12) whilst the distance measurer (1) is in use. The stop element (3″) is formed in such a way that it is possible to adjust the device and subsequently measure different measuring points (C,D) without having to take geometric changes into account as a result of said adjustment.

Abstract: In the case of an attachment element (1), a large washer (5), and a tubular extension (6) formed thereon, are provided for the passage and guidance of a screw (4). The washer (5) and the tubular extension (6) are in the form of parts made separately from each other. The tubular extension (6) carries, at the end facing the washer (5), a shoulder (7) engaging in a corresponding depression in the vicinity of an opening in the washer (5). The section (8), adjoining the shoulder (7), of the tubular extension (6), can be introduced through the opening in the washer (5). The screw (4) is inserted into the extension (6) before or after the said extension has been inserted into the said washer.

Abstract: In a washer, a central opening is provided for receiving a screw. This large surface-area washer comprises a flat edge area extending so as to be closed with a convexly curved portion adjoining the latter. The central opening is defined by a wall which is conically shaped or comprises one or more steps. The washer serves to fasten parts to an underlying structure, particularly to fasten single-layer or multiple-layer roofing with insulating material on a fixed underlying structure.

Abstract: A fastener assembly for securing roofing on soft insulation material to a solid base is formed of an axially elongated screw and a large surface washer. The screw has an elongated shank with a cutting tip at one end and a screw head at the other. A self-cutting thread is formed on the shank. The shank has a thread-free section extending from the screw head. The thread-free section has a diameter not greater than the diameter of the opening in the washer into which the screw is inserted. The washer has a countersunk area around the screw opening to receive the screw head in a recessed manner. The shank of the screw, at a spaced distance from the screw head and in the axially extending region of the thread-free section has a stop or similar member which forms a support for the washer. With the assembly secured to the solid base, the washer is tiltable relative to the screw. Accordingly, the fastener assembly can be stepped on without any damaging transfer of stress from the washer to the screw.

Abstract: An elongate supply ribbon of plastic material for supporting bolt-like fastener elements is structured with a back wall portion and a plurality of tongues extending from opposite sides of the back wall portion generally perpendicularly to the plane thereof. Bending regions interposed between the back wall portion and the tongues are formed with notches which have sides abutting each other when the tongues are bent to extend perpendicularly from the plane of the back wall portion in order to provide bearing support for the tongues.