摘要:
A liquid fuel for combustion appliances, in which a combustion wick for sucking up the fuel by the utilization of capillarity is used, contains an alcohol as a principal constituent and contains a hydrocarbon compound, which has approximately the same boiling point as that of the principal constituent, as a flame reaction agent. By the addition of the flame reaction agent, which is not accompanied by the occurrence of clogging of the combustion wick, the combustion flame of an alcohol, which otherwise produces a colorless flame, is colored and its visual perceptibility is thereby enhanced, such that the structure of the combustion appliance may be kept simple and the flame stability may be obtained reliably.
摘要:
A piezoelectric pressure sensor for detecting the amount of oil in an engine oil pan of an automobile, and liquid level or the amount of liquid such as water level in a water bath, makes use of the phenomenon that an impedance of an excited piezoelectric element varies between in a gas and in a liquid. The pressure sensor is insensitive to surrounding temperature, and has high response and is of simple construction.
摘要:
In a structure of a burning portion of an alcohol-fueled ignitor provided with a wick for drawing up fuel alcohol in a fuel reservoir by capillarity from one end portion thereof to the other end portion and burning the fuel alcohol at the other end portion, the wick is formed of glass fibers and said the other end portion of the wick at which the fuel alcohol is burnt is exposed in a surface area of 30 mm2 to 170 mm2.
摘要:
A flame reaction member for gas combustion appliances comprises a flame reaction material, which is to be heated by a gas flame having been produced by a gas combustion appliance and which undergoes a flame reaction and colors the gas flame by the flame reaction. The flame reaction material comprises a glass compound, which is formed by mixing a flame reaction agent and a fused material with each other and fusing them together. The flame reaction agent is constituted of an oxide or a salt of a metal capable of undergoing the flame reaction. The fused material is capable of being mixed and fused together with the flame reaction agent and vitrified.
摘要:
Liquid contents such as water are stored in a heat-resisting can body having an openable section formed on an upper part thereof. Other material is stored within the can body while being separated from the liquid contents and, when the can body is heated above a predetermined temperature with the openable section opened, the separation between the stored material and the liquid is removed and the liquid can come in contact with the stored material. When the openable section is closed while the can body is heated, the stored material is kept separate from the liquid even during a sterilizing process but, when the can body is heated with the openable section opened, the separation between the stored material and the liquid is removed, and consequently the contents are mixed together. This permits the stored material to be preserved from the liquid until the contents of the can body are ready for use.
摘要:
A portable water heater for use in outdoor activities improved in thermal efficiency. The heater has a double-layered structure, i.e., is constituted of an outer housing, an inner heated vessel, and a gas burner at the bottom thereof. A thermal insulation layer is formed between the housing and the heated vessel sufficient to permit therebetween an upward flow of a combustion gas from the burner to an air outlet located at the top of the heater, thereby heating the vessel. Instead of the thermal insulation layer, a thermal insulation plate in a crimped shape may be interposed between the housing and the heated vessel, so that the thermal efficiency in heating the vessel is further enhanced. The internal heated vessel may be integrally fabricated with the outer housing, or may be arranged to be removable from the housing or the internally disposed crimped plate. The crimped insulation plate may also be shaped either triangularly or sinusoidally.
摘要:
A piezoelectric transducer is secured to the surface of a glass sheet to translate mechanical vibrations generated in the glass sheet into an electrical signal when a crack is produced. A detection circuit is connected to the transducer to determine whether the frequency of the signal is above or below a predetermined value. If the frequency is higher than the predetermined value, a warning signal is derived to indicate a crack and therefore probably a burglary. Alternatively, the piezoelectric transducer in the transmit mode is excited electrically by an impulse to introduce an elastic wave into the glass sheet. A gate circuit is connected to the transducer to pass signals resulting from reflection of the elastic wave from discontinuities in the glass sheet which result from a crack. The reflected crack indicating signals are passed through the gate to the transducer when it is in the receive mode.
摘要:
As regards size reduction of a burner that draws up liquid fuel to be burned utilizing capillarity, a wick and an igniter are brought into proximity without causing contact with the flame, either a flame-producing section (61) of the wick (6) being constituted in a tapered shape at the tip portion or the tip portion of a wick holder (77) being formed to differ in height in the circumferential direction.
摘要:
In a high-calorie gas appliance (1) which is set with a replaceable fuel gas cassette (9) containing therein liquefied gas and has a burner (7) for burning vaporized fuel gas from the cassette, a heat transfer plate (15) is mounted on the gas appliance with its one end portion disposed near the burner (7) and its the other end portion in contact with the fuel gas cassette (9) so that a part of heat of combustion at the burner (7) is transferred to the fuel gas cassette (9) to heat the same. Further, a heat accumulator member (2) is disposed in contact with the heat transfer plate (15) in the position of contact of the heat transfer plate with the cassette (9). Thus temperature drop of the liquefied gas due to vaporization latent heat in response to gas supply from the cassette is suppressed, thereby ensuring stable gas supply even if the amount of gas in the cassette upon initiation burning is reduced and ensuring exhaustion of the cassette upon quenching.
摘要:
A catalyst support member for a lighter and the like comprises a base made of heat-resistant material such as a nickel-chrome alloy wire or the like, and a mixed powder comprising a catalyst carrier and a strength maintaining material. The mixed powder is fusion bonded to the base with a vitreous powdered fusion bonding material. The catalyst carrier is essentially composed of metal oxide powder such as aluminum oxide powder, titanium oxide powder or the like. The strength maintaining material is essentially composed of a metal oxide powder, such as aluminum oxide powder, titanium oxide powder or the like, and has a diameter smaller than that of the catalyst carrier.