Abstract: An arrangement for placing auxiliary ropes of hoist gears in a crane, the crane comprising a trolley (1); hoist gears (2) with hoist drums (3) placed in the trolley (1); hoisting ropes (4) arranged on the hoist drums (3); a loading member (7) suspended from the trolley (1) on the hoisting ropes (4) and having sheaves (8) for the hoisting ropes, through which the hoisting ropes pass back to the trolley; four auxiliary gears (10) placed in the trolley (1) for controlling swinging and skewing of the loading member (7) and the load attached thereto; auxiliary ropes (12) arranged on rope drums (11) of the auxiliary gears (10); and sheaves (13) for the auxiliary ropes in the loading member (7), through which sheaves the auxiliary ropes (12) passing diagonally from the rope drums (11) of the auxiliary gears (10) are guided to spaces (14) in the hoist drums reserved for the auxiliary ropes (12).

Abstract: A method for managing a portfolio owned by several investors, the portfolio including products that permit, each, protecting the consumption of a given commodity at a given price and volume for a given period of time. In addition, the method defines each investor's share of the value of the portfolio such that the value of the portfolio is determined (1-2 . . . 1-12) on the basis of the delivery-period specific changes in value of the products and the value of the portfolio is divided (2-2 . . . 0.2-10) between the investors on the basis of the consumption reserved by each investor.