Abstract: New and useful method of building a boiler frame significantly reduces the use of high load-lifting height crane and improves the operation efficiency despite bad weather. Multiple levels of steel supporting posts, which are established beforehand, are linked together with their top portion by beams and the 9th floor unit is fixed to the posts at an intermediate floor position temporarily. Suspension rods, which are suspended from lifting jacks, are then connected to the 8th floor unit and jacked up, while floor units made for lower than the 8th floor are connected on the ground to form a multi-floor unit. After connecting the multi-floor unit to the 9th floor unit the temporary fixation is released, the multi-floor unit is lifted up, and each floor unit is permanently fixed to the designated floor position repeatedly and respectively.

Abstract: New and useful method of building a boiler frame that significantly reduces the use of high load-lifting height crane and improves the operation efficiency despite of bad weather is disclosed. Multiple levels of steel supporting posts 20 that are established beforehand are linked together with their top portion by beams; and the 9th floor unit F9 is fixed to the posts at an intermediate floor position temporarily. Then suspension rods 42 suspended from lifting jacks 38 are connected to the 8th floor unit F8 and jack it up, while floor units made for lower than the 8th floor are connected on the ground to form a multi-floor unit. After connecting the multi-floor unit to the 9th floor unit F9, the temporally fixation is released, the multi-floor unit is lifted up, and each floor unit is permanently fixed to the designated floor position repeatedly and respectively.

Abstract: An object is to obtain a carriage for a hard disk driving actuator by a cheap cost in which an attaching intensity of the bearing can be sufficiently enhanced. Also, an object is to obtain a carriage plate in which it is possible to align a position for a plurality of carriage plates highly accurately with a high rigidity and a thin thickness and it is possible to enhance an attaching intensity to the bearing sufficiently. A carriage formed by a pressing operation by a press comprises a fixed bearing section, a fixed coil section, and an arm section. The thickness of the fixed bearing section is thicker than the thickness of the arm section and the fixed coil section. The rigidity in the arm section and the fixed coil section are higher than the rigidity in the fixed bearing section. It is acceptable if a plurality of longitudinal grooves which extend in an axial direction are formed on an inner wall of an attaching hole for the fixed bearing section so as to enhance the attaching accuracy of the bearing.