Abstract: A jet assisted drill system which uses a high pressure intensifier, positioned in a down hole drill assembly. Drill fluid from a drill stem is directed into the drill assembly, and in one mode this drill fluid is passed through the pressure intensifier to cause a piston assembly of the intensifier to reciprocate, with high pressure pistons of the piston assembly delivering high pressure drill fluid to a discharge jet in the drill bit assembly. The lower pressure fluid which drives the low pressure pistons is discharged into a downstream annular passageway and to the drill bit assembly. In a by-pass mode, a selector valve directs drill fluid from an upstream main passageway portion directly to a downstream main passageway portion to pass out the drill bit assembly. This flushes out debris which is carried upwardly out of the drill hole. There is a control valve to operate the piston assembly and a trigger valve operated by the piston assembly to direct fluids selectively to the control valve.

Abstract: A supersonic engine having an ejector/suppressor. The engine has a rear discharge portion with an ambient air inlet section, a mixing section, and a rear discharge section. For noise suppression, arms mounted in the air inlet section are moved to open air inlet passageways causing air to flow there through. Primary exhaust from the engine flows through primary passageways interspersed with the ambient air passageways. The primary supersonic air from the primary passageways mixes with the ambient air in the mixing section and flows out the final nozzle which is in the open position. For cruise mode, the arms are moved to close the air inlet passageways, and the final nozzle is in a position to cause the flow upstream thereof to be a subsonic, and the flow aft of the final nozzle to be supersonic. The arms can be placed in an intermediate position for thrust reversal, with the final nozzle being moved a blocking position.

Abstract: A bird feeder having a containing section for sunflower seeds, such seeds having a meat portion and a surrounding husk.A lower platform with through openings surrounds the containing section, with the openings being sufficiently small to retain full seeds thereon, but large enough to permit husk fragments to drop through the openings. The bird feeder is thus self cleaning, with rain, wind and the movement of the birds causing husks to drop through the platform, while whole seeds can be retained thereon for feeding.

Abstract: A method of providing a book/sleeve/computer disc product, where the disc is inserted into an open end of a pre-made sleeve to form a sleeve/disc package, which is then directed through a conventional binding operation to form the book/sleeve/computer disc product. More specifically, a sleeve blank is provided, and is then folded and glued to form a pre-loaded sleeve into which the computer disc is inserted. The sleeve/disc package is placed into a gathering line along with signatures or page groups which are assembled into a book block, with the sleeve/disc package being part of the book block. This is bound (either glued or stitched), and trimmed to form the finished product.

Abstract: An anti-skid brake system to supply brake fluid to first and second wheel brakes of an automobile. There are first and second control valves to receive brake fluid from a master cylinder, and first and second bypass valves to receive the bypass flow from the first and second control valves, respectively. A pump receives the bypass flow from the bypass valves in an anti-lock mode and recirculates the brake fluid in the system. There is a release valve that is responsive to fluid pressure levels of the first and second control valves to selectively connect the first and second control valves to the master cylinder, in a manner that with one of the control valves in its anti-lock mode and the other control valve in its normal operating mode, the pump delivers brake fluid toward the control valve which is isolated by the release valve.

Abstract: A beater rod assembly for a crop harvesting machine where the beater rods rotate into and out of a crop row as the harvesting machine moves along the crop row. Each beater rod comprises an elongate fiberglass core surrounded by polyethylene sheath that exerts compressive forces radially inwardly around the fiberglass core. This arrangement alleviates damage to the fiberglass core that would otherwise occur by the tip end of the rod engaging posts or possibly engaging the tip end of another rod.

Abstract: A mounting block by which a fender can be mounted to a stanchion of a railing of a boat. The mounting block has a horizontal access slot, and two laterally extending upper and lower slots which extend in opposite directions. One end of a rope is attached to the fender and another end of the rope extends through two passageways in the mounting block. The mounting block is mounted to the stanchion by moving an access slot of the block into engagement with, after which the block is rotated 90.degree. so that the stanchion extends vertically through the base sections of the upper and lower slots.

Abstract: A continuous pulp digesting apparatus where wood chips and a cooking liquor are directed into a first cooking zone, and a portion of the cooking liquor is extracted at an intermediate region downstream, of said first cooking zone. Fresh liquor is introduced into said intermediate region to adjust pH level to inhibit scaling and/or clogging of strainers in the digester, and further digesting is accomplished in a second cooking zone downstream of an intermediate region. Liquor is extracted through strainers at a lower location of said second cooking zone.

Abstract: A high-speed bus system which combines at least one parallel bus and at least one serial bus for simultaneous parallel and serial data transfer with serial data transfer taking place after connection setup at the same time as normal transfer of data and/or programs takes place on the parallel bus. Connection setup for both parallel and serial data transfer uses the logic circuit of the parallel bus. The particular adaptability of the high speed bus system is also achieved by using a high speed serial/parallel and parallel/serial converter which is connected between a parallel bus and a serial bus. This high speed serial/parallel and parallel/serial converter contains two functional units, one functional unit contains a no-delay start/stop oscillator and the other functional unit contains an internal control logic circuit which generates a busy signal when the serial bus is occupied.

Abstract: A system and method for feeding wild birds, where there is a base member (i.e. wood log) having recesses formed therein. A bird feed cartridge having a casing and suet or other bird material contained therein has an end portion thereof inserted into the recess and cut off so that the end portion of the food cartridge is retained in the recess. After a bird eats the bird food in the recess then a second end portion of the cartridge is inserted into the recess.

Abstract: A drill bit assembly comprising a plurality of cutter units, with each cutter unit comprising a circumferentially forward, relatively blunt positioning cutter, followed by a fixed cutter having a relatively sharp cutting edge, with the cutting edge of the following cutter being positioned a predetermined distance below an operating position of the positioning cutter. Thus, the cutting depth of the following cutter is controlled by the positioning cutter locating the drill bit assembly against the hole end wall from which material is being cut. Also, additional fixed cutters can be provided in circumferential alignment in said cutting units, and liquid jet cutters can be used in combination with said cutting units.

Abstract: A pre-cut building structure and method of erecting the same, wherein there is a plurality of vertical columns, each having vertically aligned grooves to receive end portions of related timbers. The columns are located, and the wall sections are formed by stacking the timbers in aligned slots of pairs of columns. The timbers are bonded to one another and to the columns to form the building structure, and loads on the building structure that would tend to deform the wall structure in a plane parallel to the length of the timbers are resisted by the bonded connections between the timbers.

Abstract: A processing roll adapted to engage paper or the like to heat and/or shape the same. The roll has a cylindrical side wall and defines a interior condensing chamber for steam. The interior surface of the roll is formed with longitudinal grooves which slope away from the longitudinal axis toward a central location. The steam condensates in the chamber, collects in the grooves, and flows toward a center location where the condensate is siphoned out and removed from the chamber. Improved heat transfer is achieved, and greater uniformity of heat is accomplished at the outside surface.

Abstract: A pulp dewatering and washing apparatus comprising a pressure vessel in which is contained a table assembly having a foraminous surface, in the form of a conveying belt, on which a pulp slurry is deposited. A differential pressure chamber in the table assembly is vented to a lower pressure location to cause a pressure differential across the pulp slurry to cause dewatering. Also, wash water is deposited on the dewatered pulp in sequential cycles to accomplish washing. A contact plate is provided to press the pulp slurry to aid in dewatering. The conveying belt of the table assembly on which the pulp slurry is deposited is stationary during the dewatering and washing, and then after the pressure differential between the vessel and the pressure differential chamber is reduced to zero, the conveyor belt moves the dewatered and washed slurry to a discharge location.

Abstract: A drill and countersink tool having a drill bit member fixedly attached to a mounting member. The mounting member has exterior threads by which it is ajustably mounted in a countersink member in a manner that the drill bit extends downwardly from the countersink member. A lock nut is threaded onto the mounting member to come into locking engagement with the countersink member. By loosingly the lock nut, the position of the drill bit and the mounting member can be adjusted for different drill lengths.

Abstract: An apparatus and method for heating and delivering water by use of a campfire, comprising drawing water from a first kettle through a supply hose to a heat exchanger that is placed in the campfire. The water in the heat exchanger boils to cause a discharge of water upwardly through a delivery tube to a collecting kettle, after which the pressure in the heat exchanger drops to cause a further supply of water to be drawn from the supply kettle to the heat exchanger. Thus, quantities of hot water (e.g. a cupful in each quantity) can be discharged at short intervals (45 seconds or so) to supply cups of hot water for a beverage such as coffee, tea, etc. Other embodiments are arranged to draw water from a lower location up to the heat exchanger and then pump the water upwardly to a storage container.

Abstract: An aerosol spray texture apparatus to dispense a spray texture material having particulate matter therein against a ceiling or other surface. There is a container having a spray texture material in the lower portion thereof, and inert compressed gas in the upper part of the container. A dispensing valve at the top of the container is depressed to cause the spray texture material to travel upwardly through a dispensing tube and from the valve onto the ceiling surface.

Abstract: An apparatus to detect damage in the metallic magnetically permeable reinforcing cables in a conveyor belt. The apparatus includes a field coil to generate a magnetic field passing through the cables, and Hall effect sensors to detect change in reluctance in the field adjacent to the conveyor belt. The conveyor belt is moved relative to the apparatus so that when there is a damaged area, this will change the reluctance path, which changes the field intensity and is in turn detected by the Hall effect sensors.