Abstract: An alignment plug recessed into a concrete floor to be level with the floor surface having a removable cap to uncover permanent reference lines for aligning machinery.

Abstract: In-line fuse holders for two-bladed fuses are disclosed which can be fastened in series to an electrical wire by severing the wire in which the holder is to be incorporated, inserting the severed ends of the wire into the holder, and mechanically fastening the wire securely in the holder. Various embodiments are shown including holders in which the wires are connected with sliding guillotine blades, and those in which fastening is secured by crimping. Several of the embodiments include cover flaps which hold fuses inserted in the holders securely in place.

Abstract: A fluid damper and mechanical spring for a radial bearing supporting a shaft of an aircraft gas turbine engine fabricated from a full ring having fluid cavities circumferentially space on the outer diameter of the ring operatively connected to the complementary surface of the support housing and having circumferentially spaced arcuate slots overlying the fluid cavities having a free end for providing the mechanical spring function.

Abstract: A fluid damper for attenuating high amplitudes occasioned by shaft unbalance of a main engine shaft of an aircraft turbine type power plant comprising a full ring with circumferentially spaced fluid cavities surrounding the radial bearing and characterized as being simpler and less costly than heretofore used curve beam fluid dampers.

Abstract: A film squeeze damper for a thrust bearing includes a plurality of curved beam segments each having a fluid chamber adjacent the support housing and mounted end to end to surround the thrust bearing. Side mounted nibs transmit the thrust load from a radial dependent member of the outer race to the support housing through each segment. This permits unrestrained radial damping of vibratory energy occasioned by the unbalance in the supported shaft. A mechanical stop is provided by the design to limit radial deflection of the segment during a high rotor unbalance.

Abstract: In-line fuse holders for two-bladed fuses are disclosed which can be fastened in series to an electrical wire by severing the wire in which the holder is to be incorporated, inserting the severed ends of the wire into the holder, and mechanically fastening the wire securely in the holder. Various embodiments are shown including holders in which the wires are connected with sliding guillotine blades, and those in which fastening is secured by crimping. Several of the embodiments include cover flaps which hold fuses inserted in the holders securely in place.

Abstract: A process for purifying well water is described involving the injection of an ozone enriched stream of air, generated by passing air through an electric arc, beneath the surface of the water under conditions suitable for oxidizing soluble iron and sulfur compounds present in the water to an insoluble state. Solids thereby formed are subsequently removed by filtration. The treatment process may either be performed within the well itself, or the well water may be removed and then treated.

Abstract: A rotary atomization apparatus for making metal powders from liquid metals comprises an atomizer disk having a concave top surface for receiving a flow of molten metal thereon. The disk is preferably made from a high strength zirconium-containing copper base alloy. The disk is driven by a surrounding drive portion thru a radial spline-type connection. Higher rotational speeds than the prior art are the major advantage of this invention.

Abstract: A mirror adapted for compensating thermal distortions resulting from the absorption of energy in a beam of radiation incident thereon is disclosed. Coolant channels disposed within the mirror proximate the reflective surface are adapted for passing coolant therethrough to minimize the temperature rise in the mirror resulting from the absorbed energy and the resulting thermal distortions therein. Heating channels disposed within the mirror proximate the back surface are adapted for passing a heating fluid therethrough for increasing the temperature of the back surface to induce thermal distortions therein, said induced thermal distortions having a direction and magnitude to counter the distortions resulting from the absorption of radiant energy at the reflective surface of the mirror.

Abstract: The laminate includes a partially cured flexible acrylic face sheet having a primer layer on one surface thereof bonded to a binder layer having a layer of reflective glass beads embedded therein and protruding therefrom. The laminate being completed with the spacer layer bonded to a bead embedded binder layer. A reflective mirror-like thin metal coating is provided on the outer surface thereof. The improvement resides in using a supported spacer layer so that no stretching of the spacer layer occurs during lamination, thus resulting in lessening of visual defects such as wrinkles and the like and crossbanding in the reflectant characteristics. The process further eliminates the use of a seal coat as well as combining bead coating and lamination into one step rather than two as in the prior art.

Abstract: An optical mirror having coolant means for compensating thermal tilt of the reflective surface is disclosed. The optical mirror has a laminated structure formed of a plurality of plates including a faceplate, a second plate, a third plate, a substrate plate and a back plate each having coolant means therein for passing a coolant therethrough. The plurality of plates are bonded together to form the laminated structure. Each of a plurality of first coolant channels disposed within the faceplate have a substantially parallel relationship with one another and a substantially vertical, parallel relationship with each of a plurality of second coolant channels disposed within the second plate.

Abstract: A method of making a laminate from a fibrous paper layer laminated to a face sheet and usually used in making labels, which method comprises obtaining a paper backing layer that has one face surface and a second surface which is porous, which paper layer preferably has a moisture content of between about 3.5 and 7.0 percent by weight, forming score lines in the second surface of the paper backing layer while supporting the layer from its said one face surface, then applying a liquid release layer to the face surface of the backing paper, drying; and, providing adhesive and face sheet layers on the release coated paper to complete the laminate.

Abstract: The laminate includes a partially cured, flexible acrylic face sheet having a primer layer on one surface thereof bonded to a binder layer having a layer of reflective glass beads embedded therein and protruding therefrom and a sealer layer on the exposed surfaces of the glass beads, the laminate being completed with a spacer layer bonded to the sealer layer and having a reflective mirror-like thin metal coating on the outer surface thereof. The binder layer, sealer layer and spacer layer, or films are all made from basically the same uncured polyvinyl butyral material. The method of forming the acrylic face layer, the use of soft rubber pressure rolls in bonding a glass bead carrying partial laminate to a preformed spacer film, and the method of making the laminate of the invention and the compositions used therein.

Abstract: The laminate includes a partially cured, flexible acrylic face sheet having a primer layer on one surface thereof bonded to a binder layer having a layer of reflective glass beads embedded therein and protruding therefrom and a sealer layer on the exposed surfaces of the glass beads, the laminate being completed with a spacer layer bonded to the sealer layer and having a reflective mirror-like thin metal coating on the outer surface thereof. The binder layer, sealer layer and spacer layer, or films are all made from basically the same uncured polyvinyl butyral material. The method of forming the acrylic face layer, the use of soft rubber pressure rolls in bonding a glass bead carrying partial laminate to a preformed spacer film, and the method of making the laminate of the invention and the compositions used therein.