Abstract: An alignment-target mount for permanent installation along an optical line-of-sight is disclosed. The mount includes a cylindrical body of a nonferrous material, which body, in turn, includes a hollow casing with a longitudinal axis substantially positionable within the vertical plane of the line-of-sight; a plug attachable to the inner casing wall having a rotatably positionable slideway thereacross; an alignment-target base slidably supported by the slideway of the plug and adjustable along a line predetermined by the rotational position of the plug; and a locking device for affixing the target base to the plug. With the basic unit, there is included a demountable target assembly affixable to the alignment-target base. The geometry of the target base is such that the alignment target is supported with the longitudinal axis thereof parallel to the vertical plane with the line-of-sight therewithin.

Abstract: An improved bobbin for use in conjunction with automatic yarn winders, the bobbin comprising a butt portion, an elongated barrel portion that terminates in an outer end of reduced size and a resilient cup-like tip mounted over the bobbin's outer end, the bobbin having an annular recess shaped to receive an inwardly directed flange formed on the cup-like tip to secure the cup-like tip on the reduced outer end of the bobbin barrel.

Abstract: An improved wood textile bobbin having a single protective wear resistant coating, the coating when applied having the ability to rapidly form a tack free outer surface and cure to a desirable working surface over woods or wood grains that have been previously unusable, wherein the composition for the coating is made up of from about 40 to 65 percent solids consisting of a ricinoleic acid/diphenylmethane diisocyanate prepolymer (MDI) and a moisture activated, blocked, hydroxyl functional acrylic resin, the balance being a solvent in which the solids are dissolved for the purpose of applying the composition to the outer surface of the bobbin substrate.

Abstract: An improved wood textile bobbin which is provided with two layers of protective coatings, the first layer being made up of ricinoleate diphenyl methane diisocyanate prepolymer (MDI) trifunctional polyether polyol (TPP), and the second layer being composed of MDI, TPP, acrylic copolymer, and to a process for producing such a bobbin.

Abstract: An improved wood textile bobbin which is provided with two layers of protective coatings, the first layer being made up of ricinoleate diphenyl methane diisocyanate prepolymer (MDI) trifunctional polyether polyol (TPP), and the second layer being composed of MDI, TPP, acrylic copolymer, and to a process for producing such a bobbin.