Abstract: A toothbrush for improved dental hygiene providing a body formed with a curved bristle head joined to a substantially straight handle by an offset neck. The curved bristle head tangentially joins the neck and extends therefrom with a decreasing radius of curvature to the extremity thereof. A plurality of bristle bundles are mounted on the concave side of the bristle head and extend substantially perpendicular to a cord joining the ends of the bristle head to free ends located in a flat plane substantially parallel to such cord. A retractable toothpick is mounted in the end of the handle remote from the bristle head and is movable between a retracted position within the handle and an extended position in which it extends beyond the end of the handle.

Abstract: An improved all-way offset snips with full width wire cutter has bosses through which first and second blade members are pivotably connected for rotation about an axis perpendicular to the pivot bosses. The blade members have extended offset cutting surfaces with respect to the pivot bosses to permit the cutting of irregular shapes, particularly sharp curves and especially small circles, including opposing circles of about 2.0" to 2.5" diameters. The cutting surfaces are rotatable between an open position and a closed position for cutting the sheet material therebetween. The pivot bosses and the cutting surfaces are adapted for removal of material therefrom to permit resharpening of the offset snips while maintaining the offset of the cutting surfaces. The shanks of the blade members are also provided with wire cutting means, preferably a pinch cutter capable of being a limit stop for limiting rotation of the first and second blade members.

Abstract: A device and method for the treatment of a fluid with magnetic lines of force are disclosed. The device comprises a core magnet assembly and at least one spaced-apart and concentric elongated ring magnet assembly forming at least one annular passageway for said fluid. Each magnet assembly comprises at least one tier of at least two magnetic sections arranged in coaxial lines in N--N and S--S relation in at least one permanent magnet. The ends of each tier of magnetic sections are supported by support members and, when said tier contains more than one magnet, the length of said tier is supported between its ends. The magnet assemblies are positioned so that the polarities of adjacent polar ends of magnetic sections in one of said magnet assemblies are unlike the polarities of the oppositely disposed adjacent polar ends of magnetic sections in a spaced-apart magnet assembly.

Abstract: First and second blade members have pivot bosses through which the blade members are pivotably connected for rotation about an axis perpendicular to the pivot bosses. The blade members have cutting surfaces offset with respect to the pivot bosses to permit previously cut material to pass the blade members without interference. The cutting surfaces are rotatable between an open position and a closed position for cutting the sheet material therebetween. The pivot bosses and the cutting surfaces are adapted for removal of material therefrom to permit resharpening of the offset snips while maintaining the offset of the cutting surfaces. One of the blade members may include a recess to permit cutting of both left-hand and right-hand curves. Integral wire cutting means, integral locking means, and an improved handle configuration are also provided.

Abstract: A device and method for the treatment of a fluid with magnetic lines of force are disclosed. The device comprises an elongated outer casing and at least two spaced-apart elongated magnet assemblies positioned therein to form at least one laminar passageway for said fluid. Each magnet assembly comprises at least one tier of at least two permanent magnets or at least two magnetic sections of a single permanent magnet arranged in coaxial line in N--N and S--S relation. The ends of each tier of magnets or magnetic sections are supported by support members and, when said tier contains more than one magnet, the length of said tier is supported between its ends. The magnet assemblies are positioned so that the polarities of adjacent polar ends of magnets or magnetic sections in one of said magnet assemblies are unlike the polarities of the oppositely disposed adjacent polar ends of magnets or magnetic sections in a spaced-apart magnet assembly.

Abstract: Coupling structure to connect sections of a compound drill stem. The drill stem has concentric passages, one connected to a fluid source to provide fluid in an area being drilled and another connected to a vacuum source to carry off the fluid and accompanying cuttings from the drilling area. In the preferred embodiment, the coupling structure includes a housing with a prismatic surface that telescopically cooperates with a similarly shaped surface of at least one of the drill stem sections to effectively transmit torque through the compound stem.

Abstract: A forestry site preparation system is provided for removing woody material, including trees, stumps and slash from forest terrain. The system includes clearing means having a means attached thereto for fragmenting the woody material and directing the particulate masses produced by this fragmentation toward the clearing means. An auxiliary fragmenting means closely associated with the fragmenting means is also provided. By setting the distance between the fragmenting and auxiliary fragmenting means, respectively, particulate masses of a maximum, predetermined size can be produced. A tree-felling assembly extending outwardly from the housing to which the fragmenting means is mounted is employed in felling the standing trees by exerting a positive force on the tree, thereby causing felling to occur in a direction away from the system. If desired, the particulate masses can be collected and transferred to a remote storage area.

Abstract: A machine for clearing and cleanly chipping trees and brushwood in the path of the machine as it moves forward. A pair of counterrotating disk cutters cut a kerf in the standing material and propel the cut material upwardly and rearwardly to the throat between a pair of feed rollers. The feed rollers deliver the cut material to a chipper, which reduces the material to chips and delivers them to a chip storage bin. The bin can be tilted to dump chips alongside the machine. The entire mechanism is carried by a self-propelled, articulated, track-supported vehicle which is especially well-suited for operation over soft, boggy ground.

Abstract: A device for the treatment of a fluid with magnetic lines of force comprises an elongated non-ferromagnetic outer casing and at least three spaced-apart elongated magnet assemblies positioned therein to form laminar passageways for said fluid. Each magnet assembly comprises at least one tier of at least two permanent magnets encased in non-ferromagnetic jackets and arranged in coaxial line in N--N and S--S relation. The polar ends of the magnets are received in ferromagnetic support members having opposed surfaces to magnetize the support members with the polarity of said polar ends and to distribute the magnetic energy therefrom to the opposed surfaces. The magnet assemblies are positioned so that the polarities of the support members in one of the magnet assemblies are unlike the polarities of the oppositely disposed support members in an adjacent magnet assembly. Means are provided for positioning the magnet assemblies within the outer casing.

Abstract: In a mining machine which incorporates cylindrical cutting bits having conically shaped heads and located in sockets of bit holders, the cutting bits are retained within the sockets by split tubular spring sleeves. The split spring sleeves are located on the shanks of the bits and resiliently engage the inner surface of the sockets thereby securing the bit in the mount. The bit is free to rotate and the sleeve interposed between the socket and the bit prevents wear on those parts of the bit and mount.

Abstract: In a camera, a motion transmitting member has a wedge-shaped end portion inserted between a shutter release member and a shutter restraining member. Manual depression of the release member pivots the motion transmitting member, which moves the restraining member to free the camera shutter for exposure. A spring member urges the motion transmitting member to maintain its wedge-shaped end portion in mutual contact with the release and restraining members. The spring-urging automatically adjusts the position of the motion transmitting member between the release and restraining members to compensate for wear of their contacting surface portions and substantially prevents any lost motion or lag between manual depression of the release member and movement of the restraining member to enable shutter actuation. Following shutter actuation, manual movement of a film member causes an extracting member to remove the motion transmitting member from between the release and restraining members.

Abstract: A milled synthetic detergent bar providing an acid to neutral pH and having the appearance, feel, handwashing and processing characteristics of soap, consists essentially of coconut-oil fatty acid ester of sodium isethionate and/or sodium lauryl sulfoacetate, paraffin, powdered starch, dextrin, coconut-oil fatty acid and water.

Abstract: A rope spinning toy is provided having a spindle which can be grasped at either end and wherein one portion of the spindle is longer than the other and can be shortened by the user so that as the user becomes more expert, the spindle can be shortened. In accordance with one embodiment of the invention, an improved form of loop closure or honda is also provided which permits a light weight cord such as venetian blind cord of small diameter to be used to simulate certain rope-spinning feats that are customarily performed only with a heavier rope or lariat.

Abstract: A milled synthetic detergent bar providing an acid to neutral pH and having the appearance, feel, handwashing and processing characteristics of soap, consists essentially of coconut-oil fatty acid ester of sodium isethionate and/or sodium lauryl sulfoacetate, paraffin, powdered starch, dextrin, coconut-oil fatty acid and water.