Abstract: A drill produced from a substantially rod-like blank containing high speed steel has at one end thereof a pointed tip which is intended to penetrate the material to be drilled. The drill is preferably a helical drill having edge parts which extend essentially from the outer part of the drill tip to the periphery of the drill cross-section, and further includes a radially open groove which extends helically along the drill, for the purpose of removing chippings from the drill.The drill is particularly characterized in that the blank, and therewith also the drill, in cross-section includes a central steel part, which is intended to exhibit high compressive stength, and which therewith forms the outer part of the drill tip, and a concentrical outer layer of high-speed steel which is intended to exhibit high thermal stability and which is applied with the aid of a casting technique.

Abstract: A freezer having its walls constructed of spaced inner and outer stainless steel skins connected together by non-metallic, thermally non-conductive structural members having a configuration which greatly reduces the transfer of temperature extremes and thermal stresses between the skins. The structural members are preferably constructed of glass fibre and possess structural, thermal conduction, and thermal expansion properties which substantially reduce the transfer of heat and thermal stresses between the inner and outer skins as the freezer is subjected to temperature variations between normal processing temperatures of about -50.degree. F. and heat sterilization temperatures up to 170.degree. F. In addition, a novel expansion joint assembly includes a flexible resilient cover strip covering the joint areas of adjacent skins.

Abstract: A feed assembly for use in filling a container with tablets or other materials is disclosed. The assembly includes a spiral chute which is constructed of a series of interconnected chute segments having a stepped configuration between adjacent segments. A segment support is located in the vertical wall at each junction of chute segments. The action resulting from the protrusions provided by the segment supports, together with the drop caused by the stepped configuration between chute segments, assists in allowing the tablets to remain in motion as they travel along the chute rather than backing up or "freight-training" along the length of the chute.

Abstract: A drop tube assembly for feeding particulate material such as tablets or capsules between an upper level and a lower level is disclosed. The assembly employs a pair of vertical tubes, including an outer tube and a flexible inner tube. The flow of particulate material is controlled by introducing air under pressure between the tubes so as to reduce the diameter of the inner tube and thus constrict the vertical passageway interior of the inner tube. The flexibility of the inner tube and the pressurized air flow are controlled to allow the passageway to be closed initially along approximately 80 to 90 percent of the length of the tube. Air may be exhausted to open the passageway. The length and number of tubes in series can be varied depending on the length of the drop as well as the fragility of the material.

Abstract: Apparatus for coextrusion of two plastics materials provided by respective first and second extruders. The first extruder is oriented in a substantially horizontal direction, and the second extruder is positioned above the first extruder and is pivotally movable about a horizontal axis. A electrically powered jackscrew is provided for pivoting the second extruder about the pivot axis for orientation of the outlet of the second extruder with an inlet for an extrusion die. The second extruder is mounted on a carriage that is slidably carried by a support frame so that the second extruder can be moved along its own axis and toward and away from the axis of the first extruder.

Abstract: Distraction apparatus for maintaining fractured joints during healing, comprising a pair of pins (10) for insertion into bone at positions proximal to and distal to an injured joint, and a pair of stainless steel wire springs (15) which are adjustably attached to the pins to determine and resiliently maintain the relative spacing of the pin insertions into the bone thus to retain the components of the joint during the healing process.

Abstract: A hawk or mortarboard device to be carried with one arm while working, designed to be supported in two areas, i.e., forward by the hand, and rearward by the forearm and/or upper arm, thereby making the device easier to carry and handle with less carrying fatigue.

Abstract: A portable-telephone mounting bracket for installation in vehicles, primarily cars, said bracket having an elongated configuration and including one or more bends and made of a sheet-like material, preferably a plastics material, and which bracket includes a flat part (5) from which an upper arm (6) and a lower arm (7) extend, the outer ends (8, 9) of respective arms being intended to be fitted into a slot in the vehicle instrument panel or in the air intake located on the instrument panel, or at some other location, such that the mounting bracket can be secured to the instrument panel by means of the aforesaid ends, and the flat part of the mounting bracket being intended to support the receiver-cradle of the portable telephone.

Abstract: The containers which are to be sterilized (glass bottles) (1) are continuously moved into and out of a radiant oven via laminar-flow units and then cooled in a cooling zone by HOSCH-filtered air. A part of the HOSCH-filtered cooling air is here branched off and passed through the radiant oven in a low-turbulence counterflow. At the entry of the bottles into the radiant oven, this counterflow is extracted by means of a fumes/exit air fan (11). The required clean-room conditions are maintained in the radiant oven by a positive pressure P.sub.2 as compared with atmospheric pressure P.sub.AT and a thus resulting counterflow of a means flow velocity of <0.2 m/second is maintained. The positive pressure P.sub.2 is here measured in the radiant oven and compared with the set value, and the exit fan (11) air for the HOSCH-filtered cooling air on the exit side is reregulated in such a way that the deviation .DELTA.p from the set value is minimized.

Abstract: A tile composition having a unique appearance created by the use of inlaid particles over an embossed and printed pattern is disclosed. In preparing the tile product, a first layer of UV curable coating is applied over the entire upper surface of a tile base. An excess of particles or chips is then sprinkled onto the surface of the first coating layer and the non-adhering particles are removed. The first layer is subjected to curing and a second layer of UV curable coating is then applied over the particles and the first layer followed by a second curing step. In one embodiment, the second coating is obtained by a combination of coating methods, including one or more direct roll coating steps followed by a curtain coating step. The particles or chips should preferably include chips of three types: (a) pigmented base color chips of which about 77 to 100 weight percent are of a U.S. mesh size in the range of between 60 and 200; (b) clear chips of which about 77 to 100 weight percent are of a U.S.

Abstract: Apparatus for dewatering sludge comprising a moving foraminous conveyor belt (10) driven in a single direction with a horizontal conveying run (11). Sludge to be dewatered is fed onto the belt at an input end of the conveying run so that liquid may drain from the sludge through the belt. Part way along the belt is disposed at least on ramp (21) having its lower edge in contact with or just above the belt surface to cause sludge to rise up the ramp thus enhancing the dewatering process. A plurality of spaced fingers (26) extend forwardly from the top of the ramp (21) thus leaving strips of the belt (20) free of sludge forwardly of the ramp and fingers.