Abstract: An oil burner of the heat radiation type is disclosed which is capable of effectively preventing clouding of the inner surface of a heat-permeable cylinder with moisture, contaminants contained in combustion gas such as soot and tar, and the like during at the ignition and combustion operation.The oil burner includes a communicating means for establishing the communication between an air supply passage and a space between a heat-permeable cylinder and an outer combustion cylinder, which comprises a top plate for a pot having through-holes formed at the portion thereof above the air supply passage and a top plate for a housing having through-holes formed at the portion below the space, to thereby allow air to be introduced directly from the air supply passage to the space and upward flow along the inner surface of the heat-permeable cylinder.

Abstract: A protective guard for an oil burner is disclosed which is capable of compactly packing and storing an oil burner while having the protective guard attached thereto. The protective guard comprises a lower guard body fixedly mounted on the oil burner, an upper guard body fitted on the lower guard body and vertically moved with respect to the lower guard body, and a fixing means for releasably fixing the upper guard body to the lower guard body and allowing the upper guard body to be vertically moved with respect to the lower guard body and put on the lower guard body when the fixing means is released.

Abstract: A cartridge-type oil tank construction is disclosed which is capable of effectively preventing oil leakage from the construction even when the construction falls down in any direction. The oil tank construction includes a stationary tank, an integrally formed tank supporting means arranged near one side end of the stationary tank to dispose a cartridge tank therethrough on the stationary tank, and a combination of a projection and a cutout which serves to allow an oil supply port of the tank supporting means to constantly face the other side end of the stationary tank opposite to the one side end thereof.

Abstract: A device for adjusting the vertical position of a wick for an oil burner is disclosed which is capable of effectively and positively keeps the combustion position of the wick within a range of constantly attaining the normal combustion of the oil burner. The wick adjusting device includes a circular member fitted on a wick operating shaft and received in a slidable knob to be moved with the knob. The circular member is formed with a slot in which a pin-like projection of a gear is movably fitted and with which the projection is engaged at the minimum combustion position to prevent the knob from being further rotated in the fire-extinguishing direction during the combustion operation.

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.