Abstract: An automated label applicator includes an elongated arm which is rotatable between a first position, in which the label applicator receives an adhesive-backed label as it is being separated from an elongated strip of label stock backing, and a second position, in which the label is removed from the label applicator by progressive engagement of the adhesive backing with a moving surface. In the label-receiving position, the label is directed between a first pin upstanding from the elongated arm, and a second pin supported for rotation about the first pin, by a spring arm which extends transversly from the first pin. The spring arm is normally biased against the second pin, but is deflected therefrom only when the elongated arm is in the label-receiving position. Upon initial rotation of the elongated arm toward the label-applying position, the spring arm is released to press the label against the second pin.

Abstract: The apparatus and technique enable an instructor, for example, an elementary grade school teacher, to simulate good and band dental hygiene conditions, including the presence of plaque between the teeth and the removal of the same with flossing; the presence of plaque in the periodontal recesses in the tissue around the bases of the teeth and the removal of the same with proper brushing; and the results of failing to brush and/or floss, including the enlargement of the recesss and the ultimate condition in which one or more of the teeth loses its lateral support and becomes wobbly, or is susceptible to being lost altogether. The apparatus and technique also enable the instructor to demonstrate the various skills necessary to proper brushing and flossing, including the skill of "easing" the floss through each of the contact points between pairs of teeth, to avoid injury to the gum tissue below, and the skill of "wrapping" the floss about the contour of each tooth, to remove the widest possible band of plaque.

Abstract: Prior art adaptive control systems for numerically-controlled milling machines are first discussed in which N/C instructions and adaptive control system data are obtained and stored in a storage medium utilizing a software routine which takes into consideration parameters of the milling process and parameters of a specific milling machine. The instructions and data command, for sequential steps in the milling process, such items as spindle position, feedrate and reference milling forces and are supplied to an N/C unit and to the adaptive control system at the milling machine to automatically control the milling process. The adaptive control system includes a milling force sensor and functions to override the commanded feedrate on comparison of the actual milling forces during the process with the reference milling forces.

Abstract: In a controllable pitch propeller assembly, a threaded and split bearing ring engages an internally threaded radial bore in the hub of the assembly. A plug for expanding the bearing ring is provided to interlock the threads of the ring with those of the radial bore in the hub.

Abstract: Combination primary and fan air thrust reversal control systems for long duct fan jet engines are disclosed. In one form, the system spoils and expands primary air and, then, allows the spoiled, expanded air to exit from the fan air duct exhaust nozzle while directing fan air in a thrust reversal direction out cascade vanes circumferentially located in the aft portion of the engine nacelle. In other forms, the system directs unequal pressure fan air and primary air through separate thrust reversal ducting and out cascade vanes circumferentially located in the engine nacelle. In equal pressure fan air and primary air systems, the air may be mixed in ducting prior to being emitted from common cascade vanes, or may be maintained separate prior to emission. In still other forms, the primary air is pre-exhausted through separate nozzles located in the primary duct wall, and a portion is then exhausted through the nacelle cascade vanes.

Abstract: A camera lens barrel suitable for flash photography, wherein flash guide numbers are marked either on the distance adjusting ring or the diaphragm value adjusting ring, is disclosed. The distance adjusting ring and the diaphragm value adjusting ring are so arranged that the rotational angle of the distance adjusting ring required to increase the distance gradation value by the .sqroot.2 is equal to the rotational angle of the diaphragm value adjusting ring at that time. A clutch mechanism is mounted in the camera lens barrel and arranged so that the distance adjusting ring and the diaphragm value adjusting ring are coupled together during flash photography. The coupling is such that the distance adjusting ring and the diaphragm value adjusting ring are connected together at a relative angular position corresponding to a flash guide number.

Abstract: In a system for positioning the spoilers on the port and starboard wings of an aircraft, a mechanical mixer that incorporates a three-dimensional cam receives pilot-controlled roll (control wheel) and speed-brake inputs and combines them to produce left and right wing spoiler positioning outputs. The cam surfaces of the three-dimensional cam are contoured so that the positioning of the spoilers in reaction to the roll input effects a roll response of the aircraft that is substantially independent of the setting of the speed-brake input.

Abstract: An expansible drive shaft tool mechanism is disclosed in which mutually cooperating parallel drive shafts carry tool elements that can be shifted into and locked by shaft expansion in any of selected positions along such drive shafts. Applied hydraulic pressure in a sealed chamber causes outward expansion of a flexible outer sleeve member on each such shaft to grip the tool elements. An inner sleeve member closely encircled by the outer sleeve member and joined in sealed relationship therewith at opposite end portions forms the radially thin elongated annular sealed chamber into which the pressurized hydraulic fluid is forced by the action of a plunger type hydraulic pressure source housed inside the inner sleeve member cavity. Actuation of the hydraulic pressure source plunger passing through a cylindrical fluid take-up chamber by longitudinal displacement is effected by means of a pneumatic piston energizable through a connecting line including a low pressure rotary seal or union.

Abstract: Monitoring of the recirculated atmosphere of an oxygen pulping reactor to determine when the inflammability level of combustible gases in the reactor atmosphere has reached a predetermined percentage of the lower explosive limit (LEL) of the reactor atmosphere in terms of combustible organic vapors and carbon monoxide is disclosed. Continuous or discrete samples of the reactor atmosphere are taken at spaced regions, and the samples are applied to: (1) flame ionization detectors, which determine the concentration of combustible organic vapors (e.g., aliphatic, olefinic, aromatic, acetylenic, alcohols, aldehydes, ketones, etc.) in the samples; and, (2) carbon monoxide analyzers, which determine the concentration of carbon monoxide in the samples. The outputs of the flame ionization detectors are calibrated in terms of percent LEL for the contributing combustible organic vapors and, thus, provide percent combustible organic vapor LEL information.

Abstract: A refractory shape is molded on a pattern by pouring over the pattern a mixture of two slurries each of which is stable but which together react to gell. The mixture is formed by merging two slurry streams immediately above the pattern.

Abstract: A combined protective cover and rider's safety leg grip pad device for removable mounting on a motorcycle fuel tank. A flexible pad panel enwrapping the fuel tank is maintained under tension by removable connector means extending between opposite side edges of the pad panel beneath the tank, such edges being stiffened by rods extending longitudinally through hem loops formed along such side edges and forming a means of attachment for the fastener means.

Abstract: Disclosed are alloys of titanium possessing improved combinations of strength, toughness and stress corrosion resistance. These titanium alloys contain from 3.8 to 5.3% Al, up to 4.0% Zr, 2.5 to 4.25% Mo, 2.5 to 4.25% V, up to 1.25% Fe, up to 2.2% Cr and up to 1.0% Ni.

Abstract: A light collector and prism that collects light from a single bulb and produces a narrow strip light beam is disclosed. The light collector and prism is formed of an elongate, integral piece of transparent material (plastic) and includes a light collecting section at one end and a prism section at the other end. Light rays emitted from a small bulb positioned in an aperture in the light collecting section are collected, to some extent (e.g., imperfectly) collimated, and directed into the prism section. The prism section extends outwardly from the collector section so as to receive the light rays collected, collimated and directed by the collecting section. The prism section includes a plurality of prism surfaces located along one edge thereof. Light rays directed by the light collecting section toward the prism section are reflected by the prism surfaces toward an opposing, narrow, light emitting edge of the prism section. Light rays emitted from the narrow edge form a narrow strip light beam.

Abstract: A method of forming a minimum mean-square error linear filter photographically is disclosed.The optimum filter may be obtained photographically. In one form, a first photographic negative of a monolayer of cells having a high percentage of cells of the given type is made at the focal plane of a transforming lens mounted so as to collect the light scattered by the monolayer; and, developed for a gamma of unity. Thereafter, a second photographic negative is made at the same focal plane of a monolayer of cells containing a normal percentage of cells of the given type using the first negative as a filter. The second negative is developed for a gamma of two. The resulting photographic plate is a realization of the desired optimum (minimum mean-square error linear) filter.

Abstract: A shutter speed digital display device for cameras equipped with both automatic and manual shutter speed controls is disclosed. A shutter speed display control circuit generates a first digital signal in accordance with the adjustment of the camera's shutter speed by an automatic shutter speed control circuit. The first digital signal is decoded and used to control a light-transmitting liquid crystal device display. In addition, when the camera is in a manual mode of operation, the first digital signal is compared with a second digital signal related to manually adjusted shutter speed. If the comparisons are equal, a coincidence indicator is energized.

Abstract: An exhaust nozzle for exhausting the effluent of a turbofan gas turbine engine across a portion of the upper surface of an aircraft wing wherein the exhaust nozzle is arranged to establish a temperature profile within the exhausted gases that prevents overheating the wing surface. The nozzle includes a contoured outer housing that longitudinally transists from a circular entrance opening, arranged for interconnection with the rear face of a gas turbine engine, to a semi-elliptical outlet opening located on the upper surface of the aircraft wing. A generally tubular mixer section, of the daisy type, is mounted within the outer housing and coaxially surrounds an engine tail plug.

Abstract: Demodulation of an ac signal that has been modulated by discrete changes in its amplitude, frequency or phase, is effected by first feeding the modulated ac signal through an amplitude limiter and hence through a bandpass filter tuned to a preselected frequency of the ac signal. The resulting bandpass-filtered ac signal defines a variable amplitude envelope which varies in response to amplitude, frequency or phase modulations of the input ac signal. Amplitude variations of the envelope of the bandpass-filtered ac signal are detected by a switching circuit whose operation has been termed "self-synchronous," because it is synchronized to the frequency of the ac signal prior to the passage of the ac signal through the bandpass filter. More particularly, the switching circuit is opened and closed in response to the ac signal appearing at the input to the bandpass filter, to cause alternate, like-polarity half cycles of the bandpass-filtered ac signal to be selectively conducted to a low-pass filter.

Abstract: Apparatus for separating oil from water in the process of transferring oil/water mixture at a predetermined rate from a source to an output includes means for indicating when the percentage of oil exceeds a predetermined value. By pumping the accumulating oil from an oil output sump in the apparatus at a predetermined pumping rate, a predetermined fraction of the oil/water mixture separator transfer rate, and by detecting level of oil rising in the sump above said range with the oil pump operating, the system is made responsive to the proportion of oil in the mixture above a certain percentage. Any one or more of various responsive functions may thereby be initiated such as sounding an alarm, terminating an industrial process, momentarily interrupting operation of the oil/water separator, etc.

Abstract: A method for discouraging ruminants from browsing edible material normally eaten by such ruminants comprises contacting the material and/or the region adjacent such material with a repellent composition. The repellent composition contains as the active repellent ingredient an aliphatic aldehyde, preferably having from six to twelve carbon atoms. The repellent composition can also be applied to the material as a repellent-producing composition that is an oxidation precursor of the aliphatic aldehyde.

Abstract: A balanced low impedance differential input line preamplifier comprising a differential amplifier and a pair of high gain common base input stages. The input signal is directly applied to the emitters of the common base input stages and the collectors of the common base input stages are each connected to one input of the differential amplifier. Capacitors are used to DC decouple the common base input stages to the differential amplifier.