Abstract: A method in a working machine, comprising a frame movable by means of a wheelwork, the frame provided with a boom assembly movable around a first pivot point in a first angle sector. The free end of the boom assembly is provided with equipment for work performances to be carried out with the working machine, and the frame is provided with a cabin for the operator of the working machine, movable around a second pivot point in a second angle sector. To synchronize the movements of the boom assembly and the cabin, for the purpose of optimizing the number of movements of the cabin during successive work performances performed by the equipment, a monitoring angle sector is selected for the cabin. The cabin is kept stationary, if the equipment is in the monitoring angle sector. After this, the cabin is moved to a new location of a new monitoring angle sector, if the equipment moves out of the location of the preceding monitoring angle sector.

Abstract: A method in a working machine, comprising a frame movable by means of a wheelwork, the frame provided with a boom assembly movable around a first pivot point in a first angle sector. The free end of the boom assembly is provided with equipment for work performances to be carried out with the working machine, and the frame is provided with a cabin for the operator of the working machine, movable around a second pivot point in a second angle sector. To synchronize the movements of the boom assembly and the cabin, particularly for the purpose of optimizing the number of movements of the cabin during successive work performances performed by the equipment, a monitoring angle sector is selected for the cabin. The cabin is kept stationary, if the equipment is in the monitoring angle sector. After this, the cabin is moved to a new location of a new monitoring angle sector, if the equipment moves out of the location of the preceding monitoring angle sector.

Abstract: The invention relates to a method for bending and tempering a glass sheet. A glass sheet is supported on a ring mould during the course of heating, bending and tempering and the glass is heated for gravitational bending thereof. After a bending operation, the glass temperature is allowed to decrease to the range of 500.degree.-550.degree. C. throughout, followed by increasing the overall glass temperature to a tempering temperature by heating as quickly and uniformly as possible.