Abstract: A milling machine is disclosed, which machine includes a frame, a drive mechanism for advancing the machine across a surface to be milled, and a milling assembly mounted on the frame of the machine for cutting a width of material from the surface in the path of the machine. The milling assembly includes a generally cylindrical milling drum having a plurality of cutting teeth, which drum is mounted for rotation about its axis. The milling assembly also includes a vibratory assembly which is mounted so as to impart vibration to the milling drum. The vibratory assembly includes an elongate shaft, a drive mechanism for rotating the shaft, and an eccentric weight that is mounted on the shaft. The eccentric weight has a non-symmetrical distribution of mass about the shaft so that vibration will be created upon rotation thereof. Also provided is a vibration isolator for isolating the vibratory assembly so as to limit the transmission of vibration created thereby to the frame of the machine.

Abstract: A kit for use in attaching and securing workpieces comprising hubless brake drums and rotors of various sizes on a lathe includes an arbor mount comprising a substantially cylindrical tube portion with an enlarged terminal member at one end. The arbor mount has a central bore adapted to receptive the shaft of the lathe. The kit also includes a pair of backing plates which can acommodate various sized workpieces. Each plate has a central hole with a diameter of sufficient size so that the tube portion of the arbor mount may pass therethrough. The first side of each plate is adapted to receive the terminal member of the arbor mount, and each plate is adapted to be positioned over the tube portion of the arbor mount with the terminal member behind a workpiece. The kit also includes a pair of centering cones which can accommodate various sized workpieces.

Abstract: A percussion-type drum assembly is disclosed including a generally cylindrical shell which is open at both ends and has a sidewall that defines an inner diameter and an outer diameter. A generally circular centering ring is also provided. The centering ring has a diameter that is larger than the outer diameter of the shell and is adapted to be disposed around the exterior of the sidewall of the shell without making contact with the shell. The drum assembly also includes a pair of membrane mounting and tuning assemblies, one for each end of the shell. Each of these assemblies includes a membrane that is adapted to cover an open end of the shell in a desired state of tension, and which has a diameter that is at least as large as the outer diameter of the shell. Each membrane mounting and tuning assembly also includes a generally circular rim having a diameter that is at least as large as the outer diameter of the shell.

Abstract: A method is provided for dyeing cationic dyeable nylon fibers with fiber reactive dyes. According to this method, an aqueous dyebath is provided containing one or more fiber reactive dyes. The dyebath has a pH of about 1.5 or below. The dyebath is heated to a temperature of at least about 160.degree. F., and the cationic dyeable nylon fibers are immersed in the dyebath for a period of time sufficient for weak bonding to occur between the dye and the fibers. The nylon fibers are removed from the dyebath and immersed in an alkaline solution for a period of time sufficient for the dye to become covalently bonded to the fibers. The cationic dyeable nylon fibers are removed from the alkaline solution and dried.

Abstract: A musical instrument is comprised of a hollow sound box having a sound board with a first opening and a second opening, and an elongate neck that is attached to the sound board. The sound box is preferably formed out of substantially flat, trapezoidal components, and the neck is attached to the sound board in overlapping fashion. The neck has a string attachment for attachment of one or more strings, and a bridge is attached to the sound board between the neck and the first sound opening. The bridge has a top edge with at least one groove defined therein to receive at least one string. At least one tuning key is attached to the outside surface of the sound board adjacent to the first sound opening and extending through the sound board to the inside of the sound box. One end of each string is attached to the string attachment on the neck, and the other end is attached to one of the tuning keys inside the sound box.

Abstract: A method for forming a test specimen from an asphalt concrete mixture includes providing a mold to receive a quantity of the mixture and adding a predetermined quantity of the mixture to the mold. The mixture in the mold is compressed at a pressure of at least about 7 psi while vibrating the mixture in the mold at a rate of at least about 2400 cycles per minute. The method also includes maintaining the vibration of and the application of compressing pressure to the mixture in the mold until the mixture obtains a predetermined mix design density within a range of about 90-97%.

Abstract: The invention comprises a quick-release locking device for attachment of an accessory having a threaded shaft at one end thereof to an archer's bow. This locking device includes a body having a bore extending therein, which bore is sized so that the shaft of the accessory may be inserted therein. The device also includes a shaft engagement mechanism within the body which is adapted to engage the threads of the shaft of the accessory within the bore, and a manually operable release mechanism within the body which may be actuated to release the engagement mechanism from the shaft. The locking device may be incorporated into the handle or riser of a bow, or it may be provided in the form of an attachment that can be threaded into the existing accessory hole of a conventional bow.

Abstract: Contaminants are removed from particulate material in an inclined, rotating drum which has an inlet for contaminated material at its upper end, an outlet at its upper end for vaporized contaminants, an inlet for air that is located between the upper end and the lower end, and an outlet for clean particulate material at its lower end. Contaminated particulate material is admitted to the upper end of the drum and conveyed under the influence of gravity and the rotation of the drum to its lower end. A combustion chamber at the lower end of the drum is provided with an air inlet, a fuel burner and an outlet for combustion products. Fuel is burned in the combustion chamber with excess air supplied so that the temperature of the products of combustion is high enough to volatilize the contaminants in the particulate material, but not so high as to incinerate them. A fire tube within the drum conveys the combustion products from the combustion chamber to the upper end of the drum.

Abstract: A screed assembly is disclosed for an asphalt paving machine that is used to pave the surface of a roadway with asphalt concrete paving material. This screed assembly includes a frame portion that is adapted for attachment to the paving machine, and a vibratory screed portion that is adapted for attachment to the frame portion. The vibratory screed portion includes a screed plate that is disposed towards the surface of the roadway, and a vibratory assembly which is mounted to the screed plate so as to impart vibration thereto. This vibratory assembly includes an elongate shaft, means for rotating the shaft, and an eccentric weight that is mounted on the shaft, which weight has a non-symmetrical distribution of mass about the shaft so that vibration will be created upon rotation thereof. The screed assembly also includes means for isolating the vibratory assembly so as to limit the transmission of vibration created thereby to the frame portion.

Abstract: An aerial toy is disclosed that is adapted to be launched into the air using an elastomeric band. The toy includes a nose portion that is generally in the shape of an elongate ellipsoid that has a front end and a rear end. An elongate rib depends from the rear end of the nose portion in a direction generally along the long axis of the nose portion. This rib has a first end adjacent to the nose portion and a second end. The aerial toy also includes a pair of generally planar wing portions which are arranged so that the plane of the first wing portion is generally parallel to and spaced apart from the plane of the second wing portion. The first wing portion depends from the rear end of the nose portion and from the rib, and has a tapered outer edge. The second wing portion depends from the rib and has a surface area approximately 20-80% as large as the surface area of the first wing portion.

Abstract: A valve assembly for a bowl includes a housing having a liquid-tight bulkhead at its base, so that the housing and the bulkhead define a chamber for containing liquid. The housing has a plurality of holes that are located above the bulkhead and positioned so that liquid in the chamber may flow through the holes and into the bowl. A supply tube, connected to an external source of the liquid, has an opening into the chamber for passage of the liquid from the external source into the chamber. A valve is adapted to be moved from an open position, which permits the flow of liquid from the external source into the chamber, to a closed position which stops the passage of liquid from the external source. A float within the chamber will rise and fall depending on the level of liquid in the chamber.

Abstract: A method is disclosed for imparting relative motion between a tool that is carried by a tool holder and a workpiece on a lathe. According to this method, a feed screw is provided, which has a first end and a second end and a threaded portion near the first end. A tool holder carrying a tool is fixed with respect to the second end of the feed screw, so that axial motion of the feed screw will be translated to the tool carried by the tool holder. A hollow drive tube is also provided, which has an internal diameter large enough to accommodate the feed screw and which is disposed to rotate about its long axis. The drive tube is mounted at a location that is fixed with respect to the workpiece, and a nut that is threaded to mate with the threaded portion of the feed screw is attached to one end of the drive tube. Apparatus for rotating the drive tube is attached thereto, and the second end of the feed screw is locked so that rotational motion thereof is inhibited.

Abstract: A work holder assembly is disclosed for securing a workpiece on a lathe having a rotary driven shaft. The workpiece has a central hole in an end wall thereof, and said end wall will be maintained in a position substantially perpendicular to the axis of rotation of the shaft. The work holder assembly includes an arbor mount comprising a substantially cylindrical tube portion having an enlarged backing plate at one end. The arbor mount is provided with a central bore, the axis of which is substantially coincident with the axis of the tube portion, which central bore is adapted to receive the shaft in sliding engagement therewith. The tube portion of the arbor mount has an outside diameter that is smaller than the diameter of the central hole in the end wall of the workpiece, while the backing plate is larger than the central hole.

Abstract: An improved pair of socks is disclosed for human feet. The improvement comprises providing a distinctive color indicator on each sock of the pair, in a location that will be covered by the shoe of the wearer, to facilitate pairing of the socks which comprise the pair, wherein the color of the indicator is selected so as to be capable of distinguishing the socks of the pair from other socks of similar or like color and of the same size. A process is also disclosed for making pairs of socks of a predetermined size including a color indicator for facilitating pairing of socks.

Abstract: An airfoil is disclosed that is adapted to be launched into the air using an elastomeric band. The device includes a nose portion that is generally in the shape of an elongate ellipsoid that has a front end and a rear end. An elongate rib depends from the rear end of the nose portion in a dkection generally along the long axis of the nose portion, and a pair of generally planar wings depend from the rib and from the rear of the nose portion. The plane of the first wing portion is generally parallel to and spaced apart from the plane of the second wing portion, and both wing portions have a tapered outer edge. The taper of the outer edge of the first wing portion is oppositely disposed to that of the second wing portion.