Abstract: An ignition system for oil burner capable of positively accomplishing ignition without operating a combustion cylinder construction and keeping ignition performance for a long period of time. The ignition system is constructed in a manner such that an ignition heater is operated at a level below the combustion cylinder construction and a closing door is actuated in synchronism with the ignition heater so that an ignition window may be opened only when the ignition heater is approached to a wick for ignition.

Abstract: An oil burner of the wick ignition type is disclosed which is capable of effectively preventing the generation of bad odor due to unburned fuel oil gas after the fire-extinguishing operation as well as during the operation. The oil burner includes an air pumping mechanism. The mechanism comprises an air pumping means which is adapted to discharge air to a combustion cylinder construction when it is heated and suck air thereinto from the combustion cylinder construction when it is cooled and an air chamber arranged between the pumping means and the combustion cylinder construction so as to be communicated with the both. The air pumping means may comprise a rigid closed vessel formed of a heat transfer material and arranged to receive heat directly from the combustion cylinder construction.

Abstract: A combustion cylinder construction for an oil burner is disclosed which is adapted to adjust combustion while preventing the adhesion of soot, moisture and the like on the inner surface of a heat-permeable cylinder to keep it clean during combustion. The combustion cylinder construction includes a first heat-permeable cylinder and a second heat-permeable cylinder supported on the first heat-permeable cylinder with a gap being defined therebetween which serves to introduce air from the exterior therethrough to the overall inner surface of the second heat-permeable cylinder.

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: A photo-curable adhesive composition for glass lamination, which comprises:(A) 100 parts by weight of a (meth)acrylate monomer represented by the formula: ##STR1## where R.sub.1 is a hydrogen atom or a CH.sub.3 -- group, each of R.sub.2, R.sub.3 and R.sub.4 is a straight-chained or branched alkylene group, each of n.sub.1 and n.sub.4 is an integer of at least 1 and each of n.sub.2 and n.sub.3 is an integer of 0 or at least 1, and having a molecular weight of from about 116 to about 5,000;(B) from 0.1 to 5 parts by weight of a photosensitizer;(C) from 0 to 5 parts by weight of a silane coupling agent; and(D) from 0 to 100 parts by weight of a plasticizer.

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 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 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: A petroleum combustion device for heating rooms or the like comprising a primary combustion chamber, a secondary combustion chamber disposed on the primary combustion chamber and provided at that portion of its base plate which is outside an outer cylinder of the primary combustion chamber with an air path and a flame extension device arranged in the secondary combustion chamber and communicated with the upper portion of an inner flame cylinder of the primary combustion chamber.

Abstract: A fire extinguishing device for an oil burner capable of instantaneously and surely accomplishing the fire extinguishing with ease and without generating any bad odor. A wick receiving chamber has a width larger than the thickness of a wick received therein and an air chamber communicated to the wick receiving chamber is disposed adjacent thereto. The air chamber is adapted to be communicated to an ambient atmosphere during the combustion operation and to be shut off therefrom by means of a valve. The fire extinguishing of an oil burner is accomplished by utilizing an air stored in the air chamber.