Abstract: A combustion apparatus for boiler includes an air supply device that varies a supply amount of combustion air, a fuel supply device that varies a supply amount of fuel, and a control device that controls the air supply device and the fuel supply device, obtains the supply amounts in accordance with respective combustion stages, and realizes the multiple combustion stages. The the control device controls the air supply device and the fuel supply device so as to return to a predetermined combustion stage when a request for transition cancel is received during transition from the predetermined combustion stage to another combustion stage, and controls so as not to perform the transition to the other combustion stage until a predetermined time period has elapsed.

Abstract: There is provided a boiler capable of preventing occurrence of a trouble accompanying transition cancel while enabling the transition cancel between combustion stages, in the boiler that controls a combustion amount in multiple combustion stages.

Abstract: An implement for dispensing a preparation is provided with a cylinder member having a cylindrical wall extending along an axis of the cylinder member, a preparation moving mechanism for moving a preparation along the axis of the cylinder member, the preparation moving mechanism including a movable member having a surface extending in parallel with the cylindrical wall of the cylinder member, and a space former for defining a space between the cylinder member and the movable member. A representation member is provided on one and/or both of the opposite surfaces of the cylinder member and the operative member.

Abstract: An implement for dispensing a preparation is provided with a cylinder member having a cylindrical wall extending along an axis of the cylinder member, a preparation moving mechanism for moving a preparation along the axis of the cylinder member, the preparation moving mechanism including a movable member having a surface extending in parallel with the cylindrical wall of the cylinder member, and a space former for defining a space between the cylinder member and the movable member. A representation member is provided on one and/or both of the opposite surfaces of the cylinder member and the operative member.