Abstract: Piezoelectric lighter equipped with a rotatable hook-shaped safety lock is composed of a shank, a finger catch fixed to one end of the shank, a pivot fixed to the other end of the shank, a catch plate fixed to the pivot at the side opposite to the shank and extending substantially perpendicular to the shank, the catch plate having a longitudinal size larger than the width of the slot of a push cap which is put on a piezoelectric unit and a lateral size smaller than the width of the slot of the push cap. The safety lock is rotatably fixed on the top raised side of the casing at such a position that the catch plate may prevent the push cap from descending when the safety lock is put in its locking position in which the shank is vertical with the catch plate laid horizontal and at such a position that the catch plate may allow the push cap to descend when the safety lock is put in its unlocking position in which the shank is horizontal with the catch plate laid vertical.

Abstract: A transport/display package cushions a magnetic tape cassette from exterior shocks between a pair of folded bedding sheets of soft fabric material. A pocket folder holds the bedding sheets with the cassette sandwiched therebetween in fixed positions for insertion into a transparent envelope.

Abstract: An assembled hinged lid cigarette package has the lid reinforcing panel held in place against the front wall of the lid portion. Tabs extend from the sides of the lid reinforcing panel and are folded either (i) to fit between the inner and outer side walls of the lid portion, or (ii) within notches cut in each of the inner side walls of the lid portion.

Abstract: The present invention relates to an energy conversion system and more particularly to the related apparatus and process. The system includes a reactor chamber having an input for a reactive substance supplied from a supply vessel, and means for receiving and transmitting a focused beam of electromagnetic or other radiation into the reactor itself. The reactor chamber is positioned with respect to means for collecting and focusing radiation, such as, electromagnetic radiation, such that a beam of focused radiation passes through the receiving and transmitting means provided in the wall of the reactor. The focused beam of radiation is, therefore, employed to induce a reactive substance to react to produce reaction products at high temperatures and elevated pressures. Advantageously, the reaction is reversible.

Abstract: A storage pack is provided comprising at least two stacked and nested trays each loaded with a plurality of semicircular split ring bearing halves. Each tray includes a plurality of elongated compartments each of which has a rib structure on the bottom wall thereof defining a herringbone-type arrangement. Bearing halves are loaded into each tray compartment on one edge thereof with the ribs separating adjacent bearing halves. The ribs are of less height than the width of the bearing halves so that when one loaded tray is stacked and nested on another, the bearing halves assume the vertical load without loading the ribs.

Abstract: An orthodontic bracket and method of making same wherein the bracket has at least one tiewing integrally formed with a base portion. In one form of the invention the bracket is provided with at least one longitudinally extending groove which extends into the base portion, the groove having at least a portion extending beyond at least a portion of the groove opening. In another aspect of the present invention is directed to a method of making an orthodontic bracket using ultrasonic machining techniques.

Abstract: Here is disclosed a method for making wearable articles such as disposable diaper, disposable diaper cover or the like, more particularly, a method for forming side flaps provided with elastic members to provide fitness around wearer's legs. According to this method, the side flaps are formed from first portions extending from opposite sides of a main body of the article and second portions, respectively, each of the second portions is provided along one side edge with said elastic member, the second portion is placed upon the first portion, and the first portion and the second portion are selectively sealed together in an area between their outer side edges and the elastic member so that the opposite sealing lines are spaced from each other wider at least in a rear area than in a central area.

Abstract: A cooking and baking device to be built in comprising an oven and a cooktop, the oven comprising: a frame, a cabinet-shaped oven unit connected with the frame and provided with a hinged door and an oven control-member connected with the frame and carrying at least one oven actuating member partly protruding from a control-panel connected with the frame, and the cooktop comprising a cooktop unit adapted to be built in a horizontal plane and cooktop control-members connected with cooktop actuating members partly protruding from the control-panel. The cooktop control-members are functionally and permanently connected with the cooktop unit and the cooktop comprises an actuating unit releasably connected with the frame, in which at least the cooktop actuating members are arranged. Preferably at least the visible part of the control-panel is a releasable front panel with recesses for the actuating members.

Abstract: A unified heliostat array for reflecting the rays of the sun upon a central collector. The heliostats are driven by a single pair of drive motors that are coupled to a sun tracker and to the individual heliostats by a common pair of drive cables. The common drive capability is made practical through the use of a novel rotational element defined as a transaxial link.

Abstract: A process and apparatus for burning fuel includes supplying fuel and primary air to the upstream end portion of a longitudinally extending precombustion chamber having a longitudinally extending outer wall. Fuel and primary air are flowed in a longitudinal downstream direction through the precombustion chamber while self-sustained combustion is maintained in the precombustion chamber by partially precombusting, mixing and heating the mixture of fuel and primary air. The uncombusted fuel and combustion products are flowed through a primary nozzle at the downstream end of the precombustion chamber. Secondary air is flowed longitudinally in a downstream direction through a longitudinally extending secondary air chamber having a longitudinally extending outer wall surrounding the outer wall of the precombustion chamber. The longitudinally flowing secondary air is heated while it cools the outer wall of precombustion chamber.

Abstract: Method for the control of a burner equipped with an injector nozzle, said method comprising the steps of continuously during combustion optically monitoring the flame of the burner; subjecting the light from the burner to spectral analysis for determining the instantaneous value of the air factor in the combustion gases, and controlling the supply of fuel and/or combustion air to the burner in dependence of said instantaneous value of the air factor. The method is characterized in that light emitted from the central portion of the flame which penetrates through the nozzle opening through which fuel is injected into the combustion chamber is picked up in a point situated in the immediate vicinity of, behind and axially with said nozzle opening, said light being further conducted out of the nozzle for being subjected to spectral analysis.

Abstract: A fuel gasifying burner comprising a combustion plate having peripheral and bottom combustion surfaces provided with a plurality of gasified fuel blowing openings. The combustion plate is arranged within a combustion cylinder to define therebetween peripheral and bottom gas chambers communicating with each other. A partition plate is arranged within the bottom gas chamber to divide the same into first and second chamber sections. The first chamber section has an inner peripheral open end communicating with an axial open end of a fuel gasifying member rotatably arranged within the combustion cylinder. The partition plate forms an annular flow branching channel at a location where the peripheral and bottom gas chambers communicate with each other. Gasified fuel-air mixture entering the first chamber section is divided into two mixture streams at the annular flow branching channel.

Abstract: Molded to a plastic water chamber for transverse-flow radiators of internal-combustion engines is the lower part of a two part storage, air venting and balancing chamber, through which an ancillary coolant flow passes, and wherein the normal range of the coolant level is located at an upper part of the balancing chamber which is connected to the lower part of the balancing chamber, and wherein said upper part is transparent for observation of the coolant level.

Abstract: A container capable of heating its content when ignited has a container containing Japanese sake, coffee, soup or the like and an exothermic material storage chamber projected into the container. A self-combustible exothermic material consisting of a mixture of oxidant such as potassium permanganate and a combustible material such as iron powder, ferrosilicon powder or the like is charged into an innermost portion of the storage chamber. A heat insulating layer made of inorganic porous material is disposed adjacent to the exothermic material and ignition means for igniting the exothermic material is extended from the exterior of the container to the exothermic material.

Abstract: The invention relates to a dam frame for creating an operative field during endodontic surgery. The dam frame has at least two frame members connected by hinges to form a closed loop. The dam frame supports a rubber membrane. The frame members may be folded in relation to one another to provide easy access to the buccal cavity while maintaining the aspetic conditions surrounding the tooth or teeth isolated by the dam.

Abstract: A single handpiece that can be used in multiple dental treatments is provided. The handpiece comprises a housing having a coil for producing an electromagnetic or electrostrictive field in the housing, and a number of inserts that react with the electromagnetic or electrostrictive field and can be used with the housing to complete the handpiece. A switching system used with the handpiece, which electrically recognizes the particular insert used with the housing provide for automatically controlling circuitry that determines which of a number of materials and medicaments are to be delivered to the handpiece for use with a particular insert. Circuitry which provides better control of the ultrasonic insert in the handpiece is also provided.

Abstract: A dental instrument employs a tool having an upper portion for use in contacting teeth and a lower portion defining a shank with a lower end, a hollow elongated gripping holder having an opening at one end, a device in the holder communicating with the opening in the holder to removably receive said part of the shank, including the lower end; and a manually operated coupling mechanism having a first section connected to the holder and a second section on the shaft, the mechanism having a lock position at which the first section engages the second section in such a manner that the tool is locked in the holder in position for use, and having a release position at which the first and second sections are disengaging and the tool can be removed from the holder.

Abstract: An orthodontic elastic band having an orally-acceptable elastomeric material which is natural, natural-synthetic or synthetic rubber or theromplastic polymeric material, and a flavoring substance uniforming dispersed therein. Preferred embodiments have 0.1-10 parts by weight, and most preferably 1-5 parts, of the flavoring substance per 100 parts elastomeric material. Preferred flavoring substances are flavoring oils, and the preferred elastomeric materials are the rubbers, most preferably natural rubber. Also disclosed is an orthodontic treatment method including releasing a flavoring substance from an intraoral elastic band by contact thereof with the oral environment to encourage frequent elastic band replacement.

Abstract: A candleholder having an improved ornamentation effect. A hollow shell, shaped in the form of an animal, fruit, building, etc., is heated by a candle positioned in its internal cavity. At least a portion of the shell is covered with a thermally color-changing material formed in a desired pattern. When the shell is heated by burning a candle, the pattern seen by the view thus changes.

Abstract: A burner for burning liquid or gaseous fuels, especially heavy heating oil. A central fuel lance is surrounded by two annular channels that supply primary and secondary combustion air. The annular channels are surrounded by several outer fuel lances that are distributed along the arc of a circle and can optionally be displaced axially and by air nozzles that convey tertiary combustion air. The object is to burn fuel at a low output of pollutants in systems with a narrow combustion space. The burner has an annular flue-gas channel between the outer annular channel and the air nozzles. The burner opens into a chamber that is jacketed in ceramic and that a heat exchanger (flame tube) extends out of. Other nozzles that convey a component of the flow of tertiary air are mounted in the wall of the chamber.