Connecting arrangement for a hydraulic cylinder having a cylinder housing and an extendable piston rod, at the free end of which a linkage lug for connection to a construction component is arranged, characterized in that the linkage lug is connected to the piston rod via a plug connection.

A straight connector (1), for hollow profiled elements (2) of spacer frames, mullions, or transoms for insulated glass panes, has several connector legs (6, 7) extending in various directions from a central connection point (9). The connector legs have retaining elements (18) for engaging on a hollow profiled element (2). The straight connector (1) has a base plate (10), with a top side with a raised support base (12) for the hollow profiled elements (2) and on both sides thereof on the connector legs (6, 7) the fin-like retaining elements (18) are arranged one after the other in a row. The support base (12) is arranged, in a longitudinal direction, in the center and has a center stop (8) for the hollow profiled elements to be put on, on both sides and which hollow profiled elements are supported at the joint (26) by the support base.

A joining device, particularly for joining a shelf to a wall of a piece of furniture, includes a cylindrical body that can be associated in a first hole adapted to be provided transversely in the shelf and provided with a first axial seat for the rotatable coupling of the first stem of a screw provided with a first crown-shaped head that can be arranged rotatably within a second seat that is adjacent to the first seat. The cylindrical body is provided with a third seat, which is perpendicular and connected to the second seat, for the temporary coupling of a pinion, which interacts with the first crown-shaped head, which protrudes externally to the cylindrical body and is accommodated within a second hole.

Connecting arrangement for a hydraulic cylinder having a cylinder housing and an extendable piston rod, at the free end of which a linkage lug for connection to a construction component is arranged, characterized in that the linkage lug is connected to the piston rod via a plug connection.

A removable device for attaching two mechanical parts includes a pin removably locking a first part with respect to a second part, a retainer member on the pin and a resiliently loaded tension member which collaborate to prevent the pin from coming out of its locked position; the removable device further includes at least two inclined surfaces, the general shape of which is that of a projection oriented in the axial direction of the pin, such that when the pin rotates, the retainer member runs along the inclined surfaces and the pin moves between the locked position and unlocked position against a force exerted on the pin along a longitudinal axial direction of the pin exerted by the tension member.

A connector comprises a first coupling part having a flat surface with a shaft projecting therefrom; and a second coupling part having a corresponding flat surface and a hole, such that the flat surfaces may be in abutment when the shaft is inserted into the hole and the first coupling part is positioned transverse to the second coupling part. The first coupling part is movable relative to the second coupling part from a position in which the shaft is inserted into the hole to a position in which the coupling parts are held so as to be inseparable by the shaft being captured inside the hole. The first coupling part is rotatable relative to the second coupling part about the shaft when the first coupling part is in the position in which the coupling parts are held so as to be inseparable. The first coupling part and the second coupling part are provided with load transference surfaces arranged to transfer load forces between the coupling members when the first coupling part is rotated relative to the second coupling part to an engaged position.

A joining device, particularly for joining a shelf to a wall of a piece of furniture, includes a cylindrical body that can be associated in a first hole adapted to be provided transversely in the shelf and provided with a first axial seat for the rotatable coupling of the first stem of a screw provided with a first crown-shaped head that can be arranged rotatably within a second seat that is adjacent to the first seat. The cylindrical body is provided with a third seat, which is perpendicular and connected to the second seat, for the temporary coupling of a pinion, which interacts with the first crown-shaped head, which protrudes externally to the cylindrical body and is accommodated within a second hole.

A photovoltaic (PV) module framing and coupling system enables the attachment of PV modules to a roof or other mounting surface without requiring the use of separate structural support members which attach directly to and span between multiple PV modules in a formed PV array. The apparatus provides a parallel coupling for securely interlocking the outside surfaces of parallel frame members together in a side to side arrangement to form an array with improved structural load distribution. The coupling may attach to a slot in the frame at substantially any position along the length of the frame thereby enabling the interconnection of adjacent PV modules along both an x and y axis. The apparatus may further provide a rotating portion and locking portion, mounting brackets for direct connection to a mounting surface, grounding teeth, and a twist-lock engagement means for interlocking and aligning PV modules in the array.