Abstract: The efficiency of a furnace is determined by determining the percentage of the heat supplied to the furnace in the form of fuel which is lost due to a plurality of phenomena in the furnace operation. The thus determined efficiency may be displayed for use by an operator or may be utilized for automatic control of the furnace so as to substantially maximize the efficiency of the furnace.

Abstract: A plate heat exchanger in which the various plates from which it is fabricated are brazed together in a stacked assembly comprised of flow plates and heat transfer plates arranged in alternating relationship. The heat exchanger has inlets and outlets for two fluids with passage networks extending between the inlets and outlets and turbulator members are located in each flow cavity formed between adjacent surfaces of the heat transfer and flow plates. The turbulator members are interchangeably positionable between each pair of adjacent flow and heat transfer plates and are selectable from a plurality of differently configured turbulator members. Plate sizes, shapes and openings therein are standardized to provide a basic heat exchanger system which can be fabricated in easily modified embodiments to meet various and diverse heat exchange requirements.

Abstract: A gas ejection nozzle device includes a casing, a gas inlet channel extending into a gas ejection channel which has an internal shoulder for forming a larger space than a space of the gas inlet channel, both gas inlet and ejection channels being disposed in the casing, and a dispersing member, disposed in the gas ejection zone, having an aperture for passing the gas and a screwed surface for widely dispersing the gas whereby the gas ejection nozzle device provides to make an ignition easily and stabily maintain the flame of the gas cigarette lighter.

Abstract: A fuel gasifying burner comprising a gas chamber defined between a bottom wall of a combustion cylinder and a combustion plate formed with gasified fuel blowing openings. A plurality of ventilation pipes extend through the gas chamber for communicating an air blowing chamber with an annular air ejection passage defined between the gas chamber and a fuel gasifying member rotatably arranged within the combustion cylinder. First and second mixing promotion cylinders arranged between the ventilation pipes and the gasified fuel blowing openings are spaced from each other to define therebetween a narrow and bent passage through which gasified fuel-air mixture from the fuel gasifying member flows into the gas chamber. A flat gas inflow chamber having a radially outward peripheral closed end is defined between the first mixing promotion cylinder and the bottom wall of the combustion cylinder.

Abstract: A gas burner assembly includes an electrically conductive burner cap body with a plurality of burner ports and an ignition port formed in a sidewall of the burner cap body. The burner cap body is connected to an electrical ground potential. An electrically insulative support member is mounted in the ignition port and defines an electrode receiving aperture. The support member cooperates with the ignition port to define an ignition gas pathway. A spark electrode is positioned within the burner chamber and projects through the support member aperture spaced apart from the ignition gas pathway. The spark electrode is selectively connected to a high voltage potential for providing ignition sparks between the electrode and the burner body through the ignition gas pathway.

Abstract: Disclosed is a piezoelectric type lighter for use in lighting pipes comprising a fuel storage having a fuel in let valve fixed at its ceiling, a piezoelectric unit, a thumb-pusher fixed to the piezoelectric unit, an operating lever operatively connected to the flame valve and to the thumb-pusher for opening the flame valve in response to depression of the thumb-pusher, a flame nozzle metal having an "L"-shaped channel made therein, and fixed to the flame valve via an intervenient electrically conductive gasket, and a shield cap of insulating material enclosing the flame nozzle metal and carrying a high-potential lead wire, which is exposed in the vicinity of the nozzle tip of the flame nozzle metal at one end of the lead wire, and is connected to the piezoelectric unit at the other end of the lead wire. No extra parts other than flame nozzle metals, conductive rubber gaskets, and insulating shield caps are required for assembling piper lighters.

Abstract: An efficient gas-fired bayonet-type heater has been developed to challenge the dominant position long enjoyed by the electric bayonet-type heater. The new heater replaces the electric resistance element in the bayonet-type heat exchange shell with a tubular porous fiber burner having a high length-to-diameter ratio attached to a long feed tube for the gas-air mixture. An annular space around the burner and feed tube within the shell provides the path for the combustion gases to flow to a discharge opening near the entry point of the gas-air mixture.

Abstract: A pulse combustion system in which a single air intake assembly is associated with a plurality of pulse combustion gaseous fuel heater assemblies. The air intake assembly includes a blower arranged to supply combustion air to the heater assemblies, and the heater assemblies each includes a pulse combustion burner arranged to be supplied with gaseous fuel from a source of gaseous fuel and the combustion air from the blower. A tailpipe is connected to the combustion chamber of the burner and arranged therewith within a water tub or an oil vessel. An electric control appartus for the system selectively activates the heater assemblies, energizes a motor of the blower for a predetermined period of time prior to selective activation of the heater assemblies and energizes the motor of the blower for a second predetermined period of time after one of the heater assemblies has been deactivated during activation of the other heater assemblies.

Abstract: A mounting assembly is provided for mounting a headlamp assembly or the like relative to an automobile frame member or the like so as to permit generally vertical and horizontal adjustment of the headlamp assembly relative to the frame member for aiming of the headlamp beam. The frame member has an elongate slot for slidably receiving the mounting assembly and the headlamp assembly defines at least one mounting aperture for coupling to the mounting assembly. The mounting assembly comprises a slot-engaging member for slidably engaging the elongate slot of the frame member and comprising a pair of spaced a part, parallel and generally horizontal surface portions joined by a transverse support portion and sized to slidably interfit with the slot, and a headlamp engaging member comprising an elongate member pivotally mounted to the slot-engaging member and having mounting structure thereon for mounting at least one outer end portion thereof to the headlamp assembly.

Abstract: A fail safe gas shut off system is provided for a gas appliance. Two normally closed valve stages are provided in series, with each stage operated by a bidirectional solenoid armature. When the armature moves in one direction, the first stage of the valve is opened to supply gas to a pilot burner and to the second stage of the valve. When the pilot flame heats an emissive element to produce sufficient radiation, a photovoltaic device illuminated by the emissive element produces current for an electromagnet which latches the first stage of the valve in its open position. The armature can then move in the opposite direction and open the second stage of the valve to supply gas to the main burner. In the event of pilot flame failure, the emissive element darkens, and current from the photovoltaic device ends. The electromagnet releases the first stage of the valve which is biased closed and cuts off gas flow to both the pilot and main burners.

Abstract: A method and apparatus for performing stereotactic surgery upon a target within a skull establishes a first, predetermined geometric relationship between a positioning fixture mounted on the skull and a scanning table surface upon which the skull is supported; and that geometric relationship is duplicated in a phantom fixture.

Abstract: A manual gas cutting torch to be used for fusion-cutting iron materials such as steel frames or iron plates includes a flame port at its cutting tip, a plurality of ports connected with gas and oxygen cylinders at its rear edge, and a handle section for holding the torch with one hand at its middle. A freely detachable back-fire preventive device is incorporated into a gas channel or oxygen channel or to both channels which shift(s) to the cutting tip side from this handle section. The back-fire preventive device serves to stop any flash-back from the cutting tip just before the handle section for preventing the flame from passing through the handle section and escaping back to the cylinder.

Abstract: A liquid candle lamp having a base with an opening passing downwardly through the top surface of the base. A disposable fuel cell is positioned in the base opening. The cell has an expanded lower section that has a close running fit with the side wall of the opening and an upper section of smaller size that forms a vertical slot with the side wall of the opening. A burner is mounted upon the top of the fuel cell which is surrounded by a globe-like chimney that is seated upon the lamp base. A skirt depends from the globe and is received within the slot so that the fuel cell substantially fills all the usable space within the base opening thereby permitting a maximum quantity of fuel to be stored within the lamp base.

Abstract: An apparatus which is operated for opening and maintaining the flow of a gaseous fuel to a burner only after the fuel is ignited in a gas appliance, such as a gas room heater. More specifically, the apparatus has a lever with three operating positions, a starting position, an intermediate position, and a final position. From the starting position, which is an inoperative mode, the lever is capable of being moved in a first direction to an intermediate position wherein actuation of a valve to the fuel source occurs allowing fuel to enter into the burner, and a final position wherein ignition of the fuel in the burner is actuated. A continuous force urging the lever in a second or opposite direction is included as well as a locking mechanism for holding the lever in the intermediate position, which locking mechanism is activated only after the lever has first been moved to the final position, hence avoiding the condition where the burner is continuing to be supplied with fuel without ignition of the fuel.

Abstract: A device to place osseous implant substances into interdental alveolar bone defects. This device is an osseous implant syringe with an axial lumen of consistent cross-section to allow movement of the granular substance through the lumen. The granular substance is moved through the lumen by use of a syringe plunger member. Barrel caps are provided to prevent spillage of the osseous implant substance when the syringe is not in use. The outlet of the syringe is sufficiently small to effectively enter alveolar bone defects. An extension nozzle member is provided for those areas that cannot be reached by the syringe barrel member alone. An outlet cap can be placed over the extension nozzle member to prevent spillage when it is not in use. Furthermore, a plunger extension lengthens the syringe plunger member to completely dispense the osseous implant substance from the extension member.

Abstract: An air register apparatus, method, and arrangement is disclosed in which each air register includes two portions, one of which feeds combustion air to an inner, ignition zone where fuel is first ignited, the other of which feeds combustion air to an outer, supplemental zone where the main combustion takes place. These two register portions provide separate and discrete air streams having measurable characteristics which accurately reflect the characteristics of the overall flow through each register portion and which characteristics govern combustion characteristics in the associated zone. Each air stream passes through an inwardly spiralling scroll passageway having a simple upstream air valve at the entrance to the passageway for controlling the flow of air through the passageway. This upstream air valve is remote from the hostile environment of the furnace or other combustion device.

Abstract: An illumination device for a front panel with illuminated areas, the latter eing illuminated by an incandescent lamp sitting in a connection base located behind the front panel through at least one light guide. The connection base is placed behind the front panel so that the incandescent lamp points away from the cover member. The lamp extends behind the front panel to the light guides. To make the incandescent lamp easily replaceable without loss of light, a cover member is removably attached to the illumination device such that removal of the cover member permits ready access to the incandescent lamp/connection base.

Abstract: A safety device for an oil burner is disclosed which is capable of detecting abnormal combustion which forms an excessively decreased flame, for example, sufficient to produce incomplete combustion gas to operate a fire-extinguishing device of the oil burner. The safety device includes an abnormal combustion sensing and actuation mechanism which is adapted to receive heat rays from the oil burner to detect the abnormal combustion and a starting member selectively actuated by the mechanism to operate the fire-extinguishing device when the mechanism detects the abnormal combustion.

Abstract: An apparatus and method for a system control means to control the temperature and preheat of waste oil in a waste oil feed system and burner. The apparatus and method include the combination of a heat transfer assembly with a helical passageway through a preheat means, a system control means, an anticipatory rate-proportional band temperature control means, and an expansion pressure relief means.

Abstract: Single-leaf valve for a gas-fired boiler. It is of the type that comprises a combustion chamber (1), a seat (10) for a valve leaf (9), and a single valve leaf (9) for the two constituents, this single valve leaf (9) being flexible and deformable, and being pressed flat against the valve leaf seat (10) when the boiler is not operating, the said seat (10) having two or more grooves (13, 14 (sic), 19), the first of these grooves being an anti-stick groove (19) which serves to prevent the said leaf (9) from sticking to the said seat (10), and the second of these grooves (13, 14 (sic)) communicating with means whereby at least one of the constituents of the mixture is supplied. Application, in particular, to gas-fired boilers of the pulsed-combustion type.