Abstract: A printed circuit board and a method of making the same is disclosed wherein a powdered conductive composition is placed on a dielectric substrate in a matrix corresponding to the desired electrical circuit pattern. The powdered conductive composition is then heated by induction so that the conductive particles are sintered to form continuous conductive pathways secured to the dielectric substrate. The use of relatively high frequency induction currents coupled with a relatively small size of the conductive particles results in rapid heating of the powdered conductive composition while leaving the underlying dielectric substrate unaffected by the induction heating.

Abstract: An apparatus for printing labels is disclosed, and more particularly a portable apparatus which will reproduce indicia of a master sheet on a continuous web substrate and thereafter cut the web into individual labels. The apparatus is provided with a rotatable plate roller, to which the master sheet is attached. A fountain solution module is provided which applies a fountain solution to the surface of the master sheet, and an ink module is provided which supplies ink to the master sheet in the areas which the fountain solution has not adhered. A blanket roller is provided having a diameter equal to the plate roller and is in contact therewith. The plate and blanket rollers are driven at equal speed such that the ink on the plate roller will be accurately transferred to the blanket roller. In addition, a freewheeling impression roller is provided which is mounted for reciprocating movement into and out of contact with the blanket roller.

Abstract: A tapered fuel injection pipe with a collar pressed and fitted below the neck is provided with a fine slit between the inside surface of the collar and the outside surface of a tapered part of the injection pipe in the free end zone of the collar.By providing such fine slit, the strength against breakage is remarkably improved.

Abstract: A lettering scale for regulating the width and spacing between letters, which is used in conjunction with a straight edge guide is provided, and includes a generally planar, transparent member having first and second straight edges disposed in perpendicular relationship. A plurality of equally spaced parallel, visible guidelines are provided on the transparent member and are disposed in parallel relationship with the first straight edge. The spacing between the first straight edge and the nearest visible guideline of the array is equal to the spacing between each guideline of the array. After the drawing of horizontal guidelines, the width and spacing between letters can be regulated by the drawing of guide points, using the lettering scale.

Abstract: A high pressure fuel injection tubing material and a method of manufacturing the same wherein the inside surface of a fine diameter thick wall metal tube made of a single steel material is cemented, then the entire metal tube is heated and then immediately the outside surface is quenched or the inside surface is quickly heated and is then left to naturally cool so that the carbon content may gradually increase with the hardness distribution toward the inside surface from the outside surface of the wall thickness and a residual stress producing part in the peripheral direction may be formed.The above mentioned injection tubing material is high in the pressure resistance and can be well guaranteed against cracking and breaking by vibrations or the like.

Abstract: An apparatus and method for applying powdered coating materials includes a central channel for directing the powdered coating material passed a conduit that mixes an air jet with the powdered material. The powder is then ionized and forced outwardly towards the workpiece. A conductive cathode attractor ring for creating a corona space charge which ionizes the particles is provided and includes a radially inner porous portion. Contamination of the attractor ring due to adherence thereon of powder particles is inhibited by diverting a secondary pressurized air flow through said porous portion thereby dislodging powder particles adhering to the ring. The porous inner portion is formed of a sintered mass of individual particles which provides an increased surface area for the attractor ring that, in turn, increases the corona space charge. A slidable deflector member is provided at the end of the central channel to alter the spray pattern of the apparatus.

Abstract: A non-insulated printed circuit board jack includes an outer stepped drawn shell member, and a stamped contact member disposed within the shell for receiving an electrical conductor. The shell member has at one end a minor diameter portion which is freely receivable in an aperture in the printed circuit board. Intermediate its length the shell includes an integral flexible retaining portion which is generally polygonal in cross-section having alternating corner portions and side portions. The corner portions are resistively receivable in the printed circuit board aperture such that when the shell retaining portion is inserted into the aperture the inner circumference of the aperture forces the corner portions of the shell inwardly, and causes the outward expansion of the side portions, whereby the shell retaining portion tends to conform to the configuration of the printed circuit board aperture. By this arrangement, an interference or snug fit is achieved between the connector and the printed circuit board.

Abstract: An apparatus for sampling an atmosphere for the presence of a constituent in which a flow of the atmosphere is first drawn through a trap capable of releasably absorbing the constituent and the trap is then passed through a carrier gas stream which removes and conveys the constituent into a detector. The trap can comprise a rotatable disc of wire mesh which cuts continuously across a flow of the atmosphere and a carrier gas flow. The volume flow rate of the atmosphere is greater than that of the carrier gas so giving a large concentration gain of the constituent in the carrier flow. The apparatus can be used for detecting the presence in the atmosphere of vapors emanating from explosives and for this purpose the carrier gas flow can be directed into an electron capture detector.

Abstract: A fish food composition and a process for using the composition are provided for enhancing the color of fish. The fish food composition is a combination of conventional fish food with pigmenting agents and limited amounts of the hormone testosterone. The process includes raising newborn fish on conventional fish food for five to eight weeks, and then continuously feeding the subject composition to fish for eight weeks to obtain peak coloration. The feeding of the new composition is continued for as long as color enhancement is desired.

Abstract: An apparatus and method for cultivating soil by forcing a burst of pressurized fluid into the soil. The apparatus is provided with a horizontal hollow shaft, rotatably mounted on a frame member, and having a plurality of hollow rods extending radially therefrom, and arranged in longitudinal rows. Each rod is tipped with a conically shaped soil piercing nozzle, and a burst of pressurized fluid is provided to the nozzles via a tank and valve arrangement. When the apparatus is pulled by a tractor, the longitudinal rows of rods are sequentially embedded in the soil under the force of the weight of the apparatus and a burst of pressurized fluid is vented through the embedded nozzles to break up the soil into small pieces. The fluid can be either air, water, or liquid fertilizer.

Abstract: A closed loop single phase continuous A.C. power control circuit for controlling the power to a load is disclosed. The circuit includes an input connectable to a source of A.C., a power level output control, a load power factor signal producing means and a power storage unit connected in parallel across the A.C. source. The power storage unit is controlled in use to provide power to the load in accordance with the setting of the power level output control and the load power factor signal.

Abstract: This invention is made with a view to increasing the fusing strength of an end piece in a valve moving push rod for internal combustion engines. The fusing part of the push rod according to the present invention consists of an .alpha.-martensite structure and a primary truestite structure in a cotransition boundary range of a segmental section formed into the hardened layer of the end piece from the fused boundary surface of the end piece with a tube end part and is provided with a tough mixed layer arcuated from the inside end part of the above mentioned fused boundary surface to the outside end part thereof. This mixed layer is obtained by reducing by a heat feeding means a quick temperature drop caused by the fusing part simultaneously with cutting off the fusing current in welding by electric resistance the end piece on the fixed side surface to the peripheral edge of the end port of a tube material.

Abstract: A garden roller capable of storing and dispensing a large volume of liquid without immobilizing the roller, includes a hollow drum, preferably made of plastic and having a handle pivotally connected thereto for rolling the drum. A flexible conduit passes outwardly from the interior of the drum through a flow aperture in an end wall of the drum and a seal is provided to prevent escape of liquid through the aperture. Liquid can be dispensed through the conduit via a pump connected to the conduit outside the drum or by pressurizing the interior of the drum. The flexible conduit is weighted at its open end such that it remains adjacent the bottom of the drum enabling the entire contents therein to be dispensed.

Abstract: A device for preparing and reseeding small bare spots in a lawn is in the form of a telescoping tubular member having upper and lower, relatively slidable tubes, with the storage hopper for the grass seeds being provided in the upper tube, and wherein a valve means is provided at the connection between the upper and lower tubes for controlling the flow of seeds from the storage hopper through the lower tube to the bare spot on the ground. The valve means preferably comprises a caged ball secured within the upper tube, and an actuating means secured to the lower tube. Spring biasing means are provided to maintain the tubular member in its extended position, with the valve means being closed. The lower end of the lower tube is formed with teeth for initially scoring the bare spot. Next, the tubular member is compressed along its axial length, thereby momentarily actuating the ball valve to enable a measured amount of grass seed to fall through the tubular member for deposit on the ground.

Abstract: A staple for use in conjunction with an anviless stapling apparatus of generally U-shaped plan form configuration where the width of each end of the crown portion of the staple in a direction orthogonal to the plane of the staple is less than the effective width of the associated leg portions of the staple. Also, a self-clinching stapling apparatus, which has no anvil, and includes a nosepiece structure whose only moving part is a driver element. The nosepiece structure of the stapling apparatus defines a drive track whose cross section corresponds to the configuration of the crown portion of the specially designed staple. The nosepiece structure of the stapling apparatus further defines elongated grooves, disposed at an angle relative to the longitudinal axis of the drive track. During a stapling operation, the driver element is actuated causing the staple to move downwardly through the drive track towards the workpiece.

Abstract: A flexible airframe flying wing, such as used for hang gliding, includes a central rib to which is perpendicularly connected two flexible spars. In turn, a plurality of floating ribs are releasably connected to the flexible spars, and extend generally parallel to the central rib. A flexible membrane envelops the central rib, the floating ribs, and the flexible spars in such manner as to bias the flexible spars in an arcuate configuration to define the leading edge of the flying wing. By virtue of the components thereof, and the flexible interconnection therebetween, the resulting flexible airframe flying wing is autostable and will adapt itself a various flight attitudes and conditions.

Abstract: A continuous-flow mixer for applying glue to wood particles used in making particleboard panels includes a rotating drum inclined at an angle to the horizontal and having at one end a glue spray nozzle aligned with the axis of rotation of the drum. Outlet openings are provided at the opposite ends of the drums such that the treated particles are conveyed by rotation of the drum and emerge unimpeded out of the drum via the outlet openings, and trickle onto a conveyor for removal of the treated particles.