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.

Abstract: A combustion cylinder construction for an oil space heater of the type for radiating heat rays is disclosed which is capable of uniformly red-heating an outer surface of an outer cylindrical member of a double combustion cylinder and efficiently radiating heat rays from the red-hot outer surface and is capable of completely burning an incomplete combustion gas and the like at a flame spreader to form a white-yellow flame and efficiently radiating heat rays from the flame. The outer cylindrical member has through-holes larger than those of an inner cylindrical member and is provided at the upper portion thereof with a recess having through-holes. The combustion cylinder and flame spreader are surrounded by a single heat-permeable cylinder.

Abstract: The burning cylinder for use in heating apparatuses consists of a base which is disposed to surround a heat source such as flame or red-hot material, constitutes the shell of a burning chamber and is made of a material that is high in heat-resistivity and transparent or translucent such as glass or the like and at least has its inside deposited with a coating layer of metal, e.g., Ti, Zr, Fe, etc. or a coating layer of a compound of such metals.

Abstract: A device for vertically moving a wick in an oil burner is disclosed which is capable of constantly ensuring the normal combustion operation of the oil burner. The device includes a drive shaft having a pinion, a rack disposed adjacent to a wick receiving chamber of the burner which is engaged with the pinion and connected to a wick to vertically move it when the drive shaft is rotated, and a stop member for stopping the movement of the rack with respect to the pinion only when the wick is lowered to the minimum normal combustion position to thereby ensure the normal combustion.

Abstract: A red-hot type oil burner capable of effectively accomplishing uniform vaporization of a fuel oil during the normal combustion operation. A heat transfer means is provided between a combustion chamber and a vaporization chamber to transmit a part of combustion heat to the vaporization chamber. The oil burner may be provided in a mixing chamber with a diffusion plate having a cutout to allow the ignition to be rapidly and safely effected. The oil burner may be also provided with a device for preventing the generation of a bad odor. There is also disclosed a red-hot type oil burner capable of surely confirming the completion of the igniting and fire extinguishing operations.