Abstract: Scaffolding includes standards to which ledger or tie tubes and diagonal braces are attached to form a removable three-dimensional truss. The ledger tubes and the braces are attached to the standards by fastening them at bores in discs fixed at regular intervals on the standards. The fastening is performed by hooks belonging in parts attached at the ends of the elements and is assisted by wedge keys.

Abstract: The machine is provided to wrap with a film portion a tray containing food products, the trays being inserted through a side device (13) having weighing scales which trays can moreover be labelled. The film insertion and cutting means comprise a carrier (3) joined to a cam (9) which on turning causes the said carrier to move forwards and backwards, whereas the cutting device has a blade (12) mounted upon a support, which is also driven by the cam (9) in such a way that the carrier and blade movements are synchronised. The machine includes a weighing station located under the carrier, and an electric station with all the power and control means of the machine as such, moreover incorporating tray lifting means that allow the lift to be used to handle variously sized trays, automatically and without having to change parts or elements.

Abstract: The present invention relates to machines used to wrap objects or articles using a film sheet obtained from a reel. This machine uses a mechanism that adjusts to and fro movement of a connecting rod thereby limiting the length of the film to be used for wrapping the article or product. This mechanism includes a connecting rod (6) capable of to and fro movement in response to the swinging movement of a lever (1) that is set off by a cam (2). The connecting rod (6) has a lateral part (8) with a pulley wheel (9) that runs along a groove (10) within a guide (11). The guide has an articulation (12) that is jointed to the chassis (13) of the machine, in such a way that an adjustment in a swinging position of the guide (11) limits the to and fro movement of the connecting rod (6) and thus the mechanism connected to the connecting rod will carry on the drive and sectioning of the film to be used as a wrapper.