Abstract: An implement for applying liquid having an elastic container for containing liquid, a head cylinder connected to the elastic container, and a liquid applying member provided in the head cylinder for applying liquid to a desired application surface, the elastic container having in an opening thereof a valve assembly for supplying and blocking liquid from the elastic container to the head cylinder and pressing portions in sides thereof, the valve assembly being actuated by pressing the pressing portions, the elastic container including an oval cylindrical portion having an elliptical cross section consisting of short arcuate portions and long arcuate portions, the long arcuate portions having actuators in the form of inward projected recesses at central portions thereof, respectively, for acting as pressing portions, the valve assembly including a valve rod carrying a slide member having a tapered surface, the slide member being disposed between the two actuators.

Abstract: There is disclosed an oxygen heater, which uses a portion of supplied oxygen as auxiliary combustion oxygen, a hot oxygen lance and a pulverized solid fuel burner, both having oxygen heaters. The oxygen heater has a combustion chamber for burning fuel with a portion of the supplied oxygen. An oxygen-jetting opening is disposed around the combustion chamber. The oxygen jetted out of the opening forms a gas curtain between an internal wall of a mixing chamber and a flame produced in the combustion chamber, and is heated by the flame. Both the oxygen lance and the burner includes the above-mentioned oxygen heater.

Abstract: An optical fiber connector terminal includes a sleeve (6); a plurality of collet members (7) disposed around a center within the sleeve to form a receiving aperture (9); and an optical fiber (10) inserted into and bonded to the receiving aperture.

Abstract: An implement for applying a liquid includes a container for holding liquid, the container having a front end which is open and a front tube mounted on the front end of the container. The front tube has a forward outlet opening. A hollow accommodating member has an interior chamber, the accommodating member having a rear opening communicating the interior chamber with the container and a forward opening communicating the interior chamber with the front tube. A liquid feed member is movably disposed in the interior chamber between a closed position in which the liquid feed member engages the forward opening to block off communication between the interior chamber and the front tube and an open position in which the liquid feed member is disengaged from the forward opening. An end valve is axially movable in the front tube between a closed position and an open position and an open position. An applicator is mounted on the end valve.

Abstract: An implement for applying a liquid comprises a container having an opening at its front end, a front tube attached to the container forward end, a hollow accommodating member having a chamber in its interior and formed with a rearward communication hole and a forward communication hole for holding the chamber in communication with the interior of the container and the interior of the front tube respectively, a liquid feed member accommodated in the chamber and movable axially thereof, a biased end valve disposed inside the front tube providing a liquid retaining portion inside the front tube around the end valve for closing the forward end opening of the front tube, and an applicator having a capillary action extending through the forward end opening of the front tube and secured to the front end of the end valve.

Abstract: An implement for applying liquid includes an elastic container for containing liquid, a head cylinder connected to the elastic container, and a liquid applying member in the head cylinder for applying liquid to a surface, the elastic container having in an opening thereof a valve assembly for supplying and blocking liquid from the elastic container to the head cylinder and pressing portions in the sides thereof, the valve assembly being actuated by pressing the pressing portions. The elastic container includes an oval cylindrical portion having an elliptical cross section consisting of short arcuate portions and long arcuate portions, the long arcuate portions having actuators in the form of inward projected recesses at central portions thereof respectively for acting as pressing portions, the valve assembly including a valve rod carrying a slide member having a tapered surface, the slide member being disposed between the two actuators.

Abstract: There is disclosed an oxygen heater, which uses a part of supplied oxygen as auxiliary combustion oxygen, a hot oxygen lance and a pulverized solid fuel burner, both having oxygen heaters. The oxygen heater (1) has a combustion chamber (4) for both mixing and burning fuel with the part of the supplied oxygen. An oxygen-jetting opening (8) is disposed around the combustion chamber. The oxygen jetted out of the opening forms a gas curtain between an internal wall (2) and a flame (10) produced in the combustion chamber, and is heated by the flame. Both the oxygen lance and the burner includes the above-mentioned oxygen heater.

Abstract: There is disclosed a monofuel combustion process for burning pulverized coal. According to this combustion process, pulverized coal having a temperature (t) produces a stable flame having a temperature of not less than 2,000.degree. C. when it is burned with an auxiliary combustion gas having an oxygen content (C). An auxiliary combustion gas is preheated, and then pulverized coal is burned with the preheated auxiliary combustion gas, or, after both an auxiliary combustion gas and pulverized coal are preheated, the gas and the coal are mixed and then burned. In the gas preheating step, the temperature of the auxiliary combustion gas is raised to the temperature T defined by the following formula: T.gtoreq.exp{14.14-1.84 ln C-exp(0.01127t-3.444)}.