Abstract: A crutch includes: a handgrip (2) extending along a first axis (AA1); a forearm support (3), provided with a stem (3b) which extends along a second axis (AA2) and is connected to a rear end (2a) of the handgrip (2); a support pole (4), extending along a third axis (AA3) and connected to a front end (2a) of the handgrip (2); and adjusting members (5), configured to adjust an angular position of at least one of the support pole (4) and the forearm support (3) with respect to the handgrip (2).

Abstract: A crutch includes: a handgrip (2) extending along a first axis (AA1); a forearm support (3), provided with a stem (3b) which extends along a second axis (AA2) and is connected to a rear end (2a) of the handgrip (2); a support pole (4), extending along a third axis (AA3) and connected to a front end (2a) of the handgrip (2); and adjusting members (5), configured to adjust an angular position of at least one of the support pole (4) and the forearm support (3) with respect to the handgrip (2).

Abstract: A method is described for managing and propagating a failure indication in a telecommunication system. The telecommunication system comprises at least a synchronous transport network and a packet-switched network which is connected to the synchronous transport network by means of a node having a transport side towards the synchronous transport network and a packet side towards the packet-switched network. According to the invention, the method comprises the following steps, which are performed by said node: detecting a first failure at the transport side; performing consequent actions in the output direction at the packet side; detecting at the packet side a second failure which is caused by said consequent actions; and ignoring the second failure.

Abstract: A protective helmet has a plurality of segments that are interhinged for swinging movement between an expanded operating position and a collapsed non-operating position, and have cooperating ribs and recesses to maintain them in the expanded operating position. There also are pin and slot connections between the segments adapted positively to guide the segments so as assure a correct moving of the segments and a correct reciprocal engagement of the ribs and recesses.