Abstract: A process and apparatus for obtaining harmonic-free periodic signals in an incremental measuring system is disclosed in which a graduation having a graduation period P is scanned by at least six scanning elements (for the case in which the previously determined bandwidth N of the analog signals obtained in scanning the graduation N is equal to 3). The periodic analog signals generated by the scanning elements are subjected to a Fourier analysis for the determination of the Fourier coefficients of the base or fundamental wave of the periodic analog signals. These Fourier coefficients are then evaluated as harmonic-free periodic signals for the formation of position measuring values.

Abstract: An incremental length measuring instrument generates analog scanning signals S.sub.1, S.sub.2 with a certain period P which are applied to a comparator in conjunction with two reference signals R.sub.S1, R.sub.S2. The measuring instrument causes the scanning signals S.sub.1, S.sub.2 to change as a function of relative displacement to two components of the measuring instrument. The comparator generates an analog control signal S.sub.D as a function of the difference of the momentary values of the signals applied as inputs to the comparator. The analog control signal S.sub.D is applied as an input to a signal generator which includes an oscillator. The oscillator generates a number of pulses in dependence on the momentary value of the analog control signal S.sub.D. These pulses cause the reference signals R.sub.S1, R.sub.S2 to be modified by the signal generator. In addition, the pulses are fed in a direction dependent manner into an incremental counter which includes a numerical display.

Abstract: In this position measuring instrument switches or cams of a limit position switching system are integrated as components of the carrier body for the measuring graduation. The switches or cams mounted to the carrier body cooperate with corresponding parts on a machine and form with these parts limit position switching systems. By integrating the limit position switch components with the measuring instrument the functioning of the position measuring instrument is extended beyond the pure measuring function.

Abstract: A speed monitoring circuit is disclosed for an automatic positioning system. This speed monitoring circuit composes a measurement of the actually present speed determined from measurement signals generated by an incremental position measuring device with the desired speed commanded by the positioning system. The difference between the actual and commanded speed is detected and, in the event of an excessive deviation, a warning or an automatic termination of operation of the positioning system is provided. In the disclosed system, the desired speed is determined by a controller in which a digital computer calculates the difference between the instantaneous position of one relatively movable machine component and the desired position of the movable component as established by programmed data.

Abstract: An encapsulated measuring system for measuring the relative position of two objects (such as the slide piece and bed of a processing machine) includes a housing which is connected with a first one of the two objects. This housing serves to mount a measuring scale which is scanned by a scanning unit connected to a second one of the two objects. In order to compensate for thermally induced length changes of the first object, the housing serves simultaneously as an expansion element for the scale and as an encapsulating element for the scale and the scanning unit. The housing is fastened at a first fastening point with the first object and at a second, spaced fastening point to the scale. The scale is arranged to be slightly shiftable with respect to the housing in the measuring direction by means of a suitable adhesive.

Abstract: A protection system for a gas analyzer is described which monitors gas pressure adjacent a sample cell included in the analyzer. The sample cell is connected via a gas/liquid separator to an input sample conduit. The measured pressure indicates when the separator is clogged with excessive liquid. A control circuit is provided which responds to selected pressure conditions by automatically controlling the valve to interrupt the flow of gas from the separator to the sample chamber. In this way, the sample chamber is protected against contamination by liquid. In the preferred embodiment, the sample chamber and the separator are automatically backflushed to remove any water contamination.

Abstract: A method and apparatus for processing poultry gizzards employing in-feed rollers and retarding means to initially orient the gizzards with appendage organs dangling below. The appendage organs are severed whereupon the gizzards are secured in the initial positions, transported and reoriented to a new position before being slit by a cutting blade. The slit gizzards are spread apart and transferred while being secured in a predefined position to a shearer-peeler station having a pair of primary rollers with a shearing and a peeling section, and then to a pair of slower rotating rollers also with a shearer and a peeler section. A vibrating tamper compresses the gizzards on the secondary peeler section for a final thorough cleaning of the gizzards.

Abstract: A reverse doctor blade assembly dispenses and applies a liquid such as ink or an adhesive to the surface of a rotating transfer roll. The assembly has a reservoir chamber which is sealed at its ends by resilient end seals which are pressed against corresponding seal support rings held in stationary, sliding relation at the ends of the rotating transfer roll. The reverse doctor blade assembly further includes opposing detachable brackets which support two spaced doctor blades in fixed relation to the reservoir chamber. The brackets may be easily disengaged to replace the doctor blades. The reservoir chamber of the assembly has a longitudinal internal groove which is employed to direct liquid within the reservoir to evenly wet the surface of the rapidly rotating transfer roll. The assembly further includes a liquid inlet line and vertically adjustable liquid outlet lines which are positioned to provide an optimum level of wetting liquid within the reservoir and a constant flow of liquid within the reservoir.

Abstract: A cleaning device for cleaning contact-type information transducing heads is disclosed. The device has a substrate covered in part by a cleaning material and partly by a recording surface. A program is stored on the recording surface for directing the transducing head toward cleaning material for each cleaning operation. An embodiment is disclosed in which memory locations on the recording surface count the number of cleaning program executions, indicate specifically available cleaning areas and indicate when the cleaning device has been completely used.

Abstract: A noninvasive urinary drainage device is described which includes a urethral tube with a slanted upper end shaped to seal against the urethral area of a female user. This tube serves to support two stacked discs, each of which is flat, plate-like, and flexible. These two discs are configured to mechanically engage the labia minora and majora of the user. The lower end of the urethral tube is secured to a drainage tube adapted to conduct urine away from the user into a suitable receptacle. The urethral tube is held in place on the user by means of a pad which is provided with an indentation shaped to receive the larger of the two discs. This pad is formed of an absorbent material and can, for example, be held in place by means of a suitable belt. The ends of the pad are formed by an elastic net which supplies a gentle, even pressure holding the urinary drainage device in place.

Abstract: A universal front anchoring system for reusable impact attenuation devices is provided. Buffer elements are positioned in an ordered array extending forwardly of a rigid backing member adjacent to a fixed structure. Diaphragm members are interposed in the array and extend laterally outward of the array at fixed intervals. Fender panels are pivotally coupled to laterally extending ends of the diaphragm members and extend rearwardly from their associated diaphragm members and partially overlap the fender panels coupled to the succeeding diaphragm members. Nonrigid means such as restraining cables and secondary cables interconnects the backing member and the diaphragm members. A pair of laterally spaced anchor assemblies is connected to the nonrigid means at the forward end of the impact attenuation device. The anchor assemblies are adapted for fixing to the ground and are symmetrical, identical and interchangeable with each other.

Abstract: A multicoordinate sensing head is disclosed in which a sensing pin is secured in the interior of a sensing head housing by means of a flange which is rigidly secured to the pin. The flange rests on precisely formed bearing balls which are distributed uniformly around the circumference of an opening in the bottom of the housing through which the pin passes. A rim on the flange extends around the bearing balls to grip the balls and prevent radial shifting of the sensing pin. In the rest position, into which the sensing pin is pressed by the action of the spring operating via a sensor probe, the free end of the sensing pin is precisely positioned in a predetermined orientation with respect to the housing in a repeatable and accurate manner. When the sensing pin is deflected, the flange tilts around one or two of the balls and thereby moves the sensor probe axially to allow a measurement system to sense deflection of the sensing pin.

Abstract: A patient monitor includes an enclosure which is secured to the bed of a patient. The enclosure is electrically connected with a nurse's call panel and the enclosure serves to mount a jack which is electrically connected to the nurse's call panel. This jack includes a normally closed switch which is opened when a mating plug is installed in the jack. The plug is connected by a cord to the gown of the patient in the bed. When the patient attempts to leave the bed the patient's motion pulls the plug from the jack, thereby allowing the switch to close and signalling via the call panel the patient's attempt to leave the bed.

Abstract: In an encapsulated measuring instrument for measuring the relative position of two objects, a scale and a scanning unit are mounted within a housing which defines a slit therein. One of the objects is connected with the scanning unit by means of a follower which extends through the slit. One or more sealing strips are provided for sealing off the slit, and each of the sealing strips includes a plurality of tightly bundled fibers.

Abstract: A split rotary seal ring is cut from an integral workpiece by forming a kerf which is inclined at a constant angle with respect to axial faces of the workpiece, thereby cutting the workpiece into two mating seal ring segments. The kerf is shaped to provide a 360.degree. radial interlock between the two seal ring segments. The two segments are then moved axially with respect to one another to close the kerf, and one or both of the axial faces are then finished to provide the seal faces of the seal ring. This geometry and method result in a seal ring in which neither the inner nor outer cylindrical surfaces must be refinished after the original one piece workpiece has been split into the two seal ring segments.

Abstract: A finger pricking apparatus is disclosed which includes a stop, a guide, a weight and a lancet. The lancet comprises a base, a handle and a needle. The needle is disposed centrally within the base and the handle such that it protrudes from the handle. The lancet is seated in a recess defined by the weight. The weight and lancet are free to reciprocate in the guide. The guide defines a first end and a second end. The stop is seated in the first end of the guide. The stop cooperates with the weight to control depth of puncture of the lancet. In use, the weighted lancet is loaded into the guide. The guide is held between two fingers and inverted. The weighted lancet is thereby caused to travel from the first end to the second end of the guide. When it reaches the first end, the weight contacts the stop, preventing further movement of the lancet. The needle of the lancet protrudes through an opening defined by the stop and pierces a finger, thereby allowing a drop of blood to be drawn.

Abstract: This application discloses rodenticide compositions containing artificial sweeteners. The disclosed compositions have improved acceptability to the rodents and longer storage life.

Abstract: A crane is disclosed for use with a lifting device such as a fork lift. The crane includes a crane base which is adapted to be secured to the forks of the fork lift, and an inclined crane boom which is rigidly secured to the crane base. The upper end of the crane boom defines a guide such as a pulley, and a cable such as a chain is positioned over this guide. One end of the cable is fixedly mounted to the lower end of the mast of the fork lift, and the other end of the cable is secured to a lifting hook. This arrangement provides the important advantage that the separation between the hook and the pulley decreases as the crane is elevated by the fork lift. For this reason, the lifting height capacity of the crane is greater than the lifting height capacity of the fork lift, while the effective length of the cable remains constant. In this way, the cost and complexity of winches is avoided.

Abstract: A gas/liquid separator for a gas analyzer is described. The separator includes a separator chamber made up of two component chambers. The first of these component chambers is relatively shallow in depth and serves to connect an input port with a lower output port. The second of these two component chambers is less shallow in depth and serves to interconnect the lower output port with the upper output port. This second component chamber is bounded by two diverging surfaces which diverge in the direction of the upper output port. A barrier extends into the separator chamber to separate the input port from the upper output port and to prevent the flow of liquid directly from the input port to the output port.