Abstract: An automatic fire-extinguishing device for an oil burner is disclosed which is capable of manually carrying out the fire-extinguishing at the occurrence of any trouble in the oil burner as well as at the occurrence of earthquakes with good reliability and significant simplicity. The automatic fire-extinguishing device includes a movable lever which is adapted to be operated by a manual operation lever mounted on a movable shielding plate at the time of fire-extinguishing to upward move a combustion cylinder with respect to a wick receiving case through a lever mechanism to form a space between the cylinder and the case and receive the shielding plate into the space, so that the fire-extinguishing may be accomplished.

Abstract: A device for adjusting the vertical position of a wick in an oil burner is disclosed which is capable of variably determining the uppermost position of a wick to constantly carry out stable maximum combustion and exhibiting good operability and durability. The device is adapted to variably selectively form the detachable engagement between a stopper pin fixedly projecting a wick operating shaft and an adjusting member loosely fitted on the shaft to variably determine the uppermost position of a wick.

Abstract: A safety device for a pot-type oil burner is disclosed which is capable of efficiently and rapidly detecting the decrease of oxygen concentration in a room due to combustion to provide a warning and/or stop the combustion by sensing the decrease in temperature of a bottom portion of a pot. The safety device includes a thermo-sensitive device arranged on the outer surface of the bottom portion of the pot which is apart from the bottom region of the pot in which occurs the vaporization of fuel oil supplied to the pot.

Abstract: A spacer structure for a heating appliance is disclosed which is capable of allowing the package of the heating appliance to be significantly simplified and small-sized to reduce the cost and is simple in construction. The spacer structure includes a spacer formed into a substantially U-shape and having a pair of inward bent ends and projections provided at the inward bent ends which are fitted in through-holes of a mushroom shape to rotatably securely connect the spacer to the heating appliance.

Abstract: A combustion cylinder construction for an oil space heater is disclosed which is constructed to dispose a uniform air flow forming mechanism between an outermost heat-permeable cylinder and an outer cylindrical member of a double combustion cylinder, thereby not only to keep the double combustion cylinder in a red-heated state, but also to carry out the formation of a uniform and stable white-yellow flame and to complete combustion at a flame spreading means. There is also disclosed a combustion cylinder construction which further includes a heat ray reflecting means to render the temperature profiles through the heat-permeable cylinder as uniform as possible, resulting in an oil space heater having a long service life.

Abstract: A safety device for an oil burner is disclosed which is capable of effectively and rapidly accomplishing the detecting and stopping of abnormal combustion in the oil burner. The safety device includes an additional flame electrode (72) which is adapted to flow a DC current therethrough when flame of abnormal combustion contacts with the electrode, to thereby detect the abnormal combustion.

Abstract: A construction for preventing oil leakage in an oil burner is disclosed which is capable of effectively preventing oil leakage from an oil burner, particularly, a means for supporting a cartridge-type oil tank on an auxiliary tank when the burner falls down in any direction. The construction includes an oil reservoir mounted through the oil tank supporting means in the auxiliary tank and provided with a through-hole at the side portion thereof facing a combustion mechanism of the burner only through the oil tank is communicated with the auxiliary tank. The auxiliary tank has a volume determined to allow an oil level in the auxiliary tank to be constantly lower than the through-hole of the oil reservoir even when the oil burner falls down in any direction to prevent oil leakage from the oil tank supporting means.

Abstract: A pot-type oil burner is disclosed which is capable of effectively preventing the generation of bad odor and soot during the igniting operation by turning on an electric heater positioned above a heat-resistant fabric spread on the bottom surface of a pot to previously heat the pot and fabric to a temperature sufficient to vaporize fuel oil prior to introducing fuel oil to the pot by means of a nozzle pipe.

Abstract: An oil burner comprising a safeguard mechanism against a power stoppage is disclosed which is capable of carrying out a fire extinguishing operation in a complete combustion state upon a power stoppage, to thereby prevent any soot and smelly and toxic combustion product from being produced. The oil burner includes a solenoid valve mechanism having a wiring of allowing the supply of a fuel oil to an oil supply pipe to be stopped upon a power stoppage, an air damper actuated in cooperation with a mechanism for changing the flow rate of a fuel oil supplied to the oil supply pipe, a solenoid connected to the air damper which has a wiring of allowing the air damper to be opened upon a power stoppage, and an air fan rotated due to inertia force upon a power stoppage.

Abstract: A pot-type oil burner is disclosed which is capable of stabilizing the vaporization rate of fuel oil in a pot to accomplish the stable complete combustion with a good efficiency. The oil burner is constructed to arrange a heat-resistant fabric on the bottom surface of the pot to vaporize fuel oil with a constant rate. The oil burner is also capable of significantly reducing retention of tar in the pot and facilitates removing tar from the pot as desired.

Abstract: A protective guard for a combustion appliance is disclosed which comprises a front frame having a pair of vertical frame portions between which a protective guard body is provided; a pair of side frames which at one end are rotatably supported on the vertical frame portions of said front frame on both ends thereof; and a cross beam member on both ends thereof slidably engaging the side frames. When the cross beam member is positioned at the upper ends of the side frames, the side frames are so rotatable about the axes of the upper ends of the vertical frame portions of the front frame that the side frames are able to be inwardly folded, and when the cross beam member is positioned at the lower ends of the side frames, the side frames are so fixed in an unfolded manner that they cannot be rotated. Thus, it will be noted that the protective guard can be fixed so that it can surround a combustion appliance in a stable manner.

Abstract: A device for adjusting the vertical position of a wick in an oil burner is disclosed which is capable of keeping the lowermost position of the wick constant irrespective of the variably set uppermost position thereof. The device comprises a stopper forced by a spring against a gear fitted on a wick operating shaft, the gear being adapted to be rotated with the shaft to wind a return spring for the gear when the shaft is rotated to move the wick upwardly. A control member is fitted on the shaft and provided with a stopper actuating portion which moves the stopper against the spring means to release the engagement between the stopper and the gear. The control member is adapted to be engaged with the shaft and the gear at a desired position, and the shaft is reversed by the return spring when the stopper is moved to be disengaged from the gear.