Abstract: An bucket for a rope shovel provides a structure which is resistant to great mechanical forces and stress during operation of the bucket. The bucket comprises a tubular body (11) with an interior having a closed curvature (8). The tubular body (11) is formed by at least one plate (4) which is folded until its ends are butted and has weld beads (9a, 9b, 9c) and/or weld plugs (9c) to form the body (11) with a tubular shape. The tubular body (11) has an exterior with reinforcement layers (12, 13, 14, 15) comprising at least a plate (4). The lower front portion of the tubular body (11) has a lip (25) which is formed sheets (25a, 25b, 25c, 25d) that are overlapped and nested. Each sheet is formed by at least one plate (4). The upper portion of the tubular body (11) has engagement supports (20, 21, 22 which are also made of at least one plate (4).

Abstract: A mining shovel includes a boom and a transmission unit coupled to the boom. The transmission unit includes an outer housing, an internal motor housing disposed within the outer housing, and a venting system coupled to the outer housing to direct air through both the outer housing and the internal motor housing.

Abstract: A cutoff device with a liquid bag includes a framed housing that supports a cover having a cutoff wall. The cutoff wall is opened at a lower end thereof with a liquid bag attached along the opened lower end of the cutoff wall. The housing includes telescopic columns, upper support frames coupled to the upper ends of the telescopic columns, and a lower support frame coupled to the lower ends of the telescopic columns. The upper end of the liquid bag may be fastened to the opened lower end of the cutoff wall using a zipper. The liquid bag contains liquid, such as water, therein, with a heavy substance, such as sand, soil and powdered or granulated metal, added to the liquid.

Abstract: The present invention relates to a method for automatically configuring network addresses of mobile nodes participating in a mobile multi-hop network. The method of the present invention includes a first step of, if a first mobile node belonging to a first network moves into and participates in a second network, detecting that the first mobile node has moved; a second step of securing a route from the first mobile node to a gateway of the second network and requesting network configuration information; and a third step of receiving an available network address allocated by the gateway and changing the network configuration information of the first mobile node.

Abstract: Bucket dredger, comprising: a swivelling ladder connected to a vessel, a driven upper wheel at the top end and a polygonal lower wheel (7) at the lower end of the ladder, one or more endless chains (6) which are guided along both wheels, and buckets (9) connected to the shackles (8) of these chains (6). For receiving the lateral force exerted on a bucket the bottom wall (12) of each bucket (9) is provided with two ribs (15) extending downwardly, which extend substantially parallel to the side walls (14) of the bucket and which, in the assembled state of the bucket, extend adjacent the chains (6) and between the chains and upright edges (16) placed on the lower wheel (7). The ribs (15) can extend along the length of two shackles (8).