Abstract: The invention concerns a bush (13) to be formed around a lockbolt rivet (4) by means of a tool (14) which applies a longitudinal force, thus producing a high-strength riveted joint. The bush has substantially the shape of a hollow cylinder, but its shape deviates from rotational symmetry in such a way that when it is being formed around the lockbolt rivet (4), a torsional force acting in the direction of arrow (20) is superimposed on the longitudinal force acting in the direction of arrow (19).

Abstract: A stretchable flame resistant fabric (10) formed from a series of flame resistant warp yarns (11) interwoven with a series of filling yarns (12). The filling yarns (12) comprise core yarns (15) formed from an elastic material, wrapped with a series of wrap yarns (16) formed from a flame resistant material. The stretchable flame resistant fabric (10) thus provides a desired degree of flame resistance protection, while at the same time is stretchable in one direction to provide the fabric with greater flexibility without sacrificing flame resistance protection.

Abstract: A method and apparatus for automatically controlling the moisture content of corrugated board manufactured along a corrugated board production line. Moisture control apparatus (5) has a top liner board moisture sensor (45) and a bottom liner board moisture sensor (46) stationed along the corrugated board production line (7) which read the moisture content percentage of the top liner board (12) and bottom liner board (23) of a combined corrugated board (38). The moisture control apparatus also includes a line speed sensor (47) which measures the line speed of the corrugated board production line. The moisture control sensors (45, 46) signal a central processing unit (50) with a signal proportional to the measured moisture content percentage of the top liner board and bottom liner board, respectively.

Abstract: A substitute catheter tip (10) is disclosed, for attachment to a catheter shaft (30) to form a urethral catheter. The substitute tip is curved and has a rolled over collar (16) at one end which has a layer of adhesive (26) applied thereto. The rolled over collar can be unrolled to fit over a catheter shaft and adhesively bond to the catheter shaft forming a catheter.

Abstract: A hand actuated scissors for cutting work pieces such as cables, profiles, branches or the like, having two hand levers (1, 2) coupled to each other, the first of which merges into a fixed cutting jaw (6) having a movable cutting jaw (10) pivotally supported at its free end that can be placed around the work piece (12) and where the cutting jaw has an outer toothing (13). A knee lever drive (3, 5, 14, 16) for swinging the movable cutting jaw (10) relative to the fixed cutting jaw (6) is provided, which includes a thrust lever (14 ) pivotally supported on the second hand lever (2). A notch lever (17) is pivotally supported on the first hand lever (1), where the teeth (16, 19) provided on the thrust lever (14) and the notch lever (17) respectively alternately mesh with the outer toothing (13) of the movable cutting jaw (10). The outer toothing (13) of the movable cutting jaw (10) has a pitch of less than 2.3.degree..

Abstract: A landscaping ground cover to be placed around a base of an object such as a tree or shrub to prevent the growth of grass, weeds or other foliage and to protect the tree or shrub. The landscaping ground cover (10) comprises a sheet of flexible material, preferably having uniform thickness, and a plurality of concentric circular paths (18) defined along an upper surface. The circular paths (18) comprise channels (30) recessed into said upper surface. A perimeter path (28) extends from the innermost circular path (18) to the perimeter (26) of the ground cover. In addition, perimeter paths (14) provide means for altering the shape of the ground cover (10) for corner designs, square designs or to accommodate other unique landscaping needs. A plurality of drainage holes (32) are defined through said ground cover (10) which allow water and air to pass to the root system disposed below the ground cover (10).

Abstract: A shift lever structure (E) for operating an automatic transmission of a vehicle, includes a frame (10) fixed to a floor of the vehicle, a shaft (20,21,22) rotatably supported by the frame, a shift lever (30) and a select lever (40) connected with the automatic transmission. Both the shift lever and the select lever are molded integrally with the shaft by the insert-molding technique. In the arrangement, the lower end portion of the shift lever is engaged with the upper end portion of the select lever at an L-shaped bend (41). In operation, a force applied on the shift lever can be transmitted to the select lever directly, thereby reducing any twisting movement applied to the shaft. Therefore, it is possible to improve the strength of both levers and to decrease the strength required for the shaft.

Abstract: An improved reversible dust mop cover comprises overlying sections of mop cover material having tufted yarns or other mopping medium exposed on both sides thereof. The cover is open on one end, closed along two sides, and its other end is formed by an integral fold line that connects the overlying sections. The cover is made by folding an elongated strip of mop cover material onto itself and securing the two aligned edges of the folded strip together while leaving the end detached. Access openings are formed in the top and bottom sections of the pouch to provide access to the handle receiving bar of a mop frame inserted into the pouch. In use, the mop cover is installed on a mop frame and used until one side becomes soiled whereupon the mop cover is removed and reversed so that the unsoiled side can be used to continue mopping.

Abstract: The waist band (16) is placed in straddling relationship about spindles (12-15). The waist edge (23) of the shirt body (17) is telescoped about the waist band, also in straddling relationship about the spindles (12-15). The garment parts are advanced by the rotation of the spindles and the sewing needle (9) forms a line of stitching at the aligned edges of the shirt body and waist band. In the meantime, the end spindles (14 and 15) move laterally of the sewing path to adjust the position of the waist band in response to the position of the folded edge (21) of the waist band as detected by photocell (30/138), and the star wheels (32) (FIGS. 5-7) reach across the waist band and urge the shirt body toward or away from the sewing path as controlled by the photocell (31/208).

Abstract: A computer-based deep level transient spectroscopy (DLTS) system (10) efficiently digitizes and analyzes capacitance and conductance transients acquired from a test material (13) by conventional DLTS methods as well as by several transient methods, including a covariance method of linear predictive modeling. A unique pseudo-logarithmic data storage scheme allows each transient to be tested at more than eleven different rates, permitting three to five decades of time constants .tau. to be observed during each thermal scan, thereby allowing high resolution of closely spaced defect energy levels.

Abstract: A flow differentiation scheme is disclosed for magnetic resonance imaging (MRI) of fluid flow in regions of turbulent flow. The flow differentiation scheme comprises the steps of (1) obtaining a first magnetic resonance (MR) image of the region, (2) obtaining a second MR image of the same region with an imaging parameter or imaging sequence altered, and (3) logically differentiating the first and second images with respect to flow to create a difference image. The process may be enhanced by superimposing one of the original images, upon an image that has been flow differentiated. As a result, a substantial amount of the static signal is suppressed producing superior angiograms of diseased and undiseased blood vessels. Additionally, the scheme can be used to image any fluid flow in any body or thing.

Abstract: An automatically-calibrating electrically-controlled diaphragm valve actuator has a stepper motor controlled by a controller mechanism for moving the actuator within a diaphragm valve. A reference position indicator is provided to signal the controller mechanism when the valve actuator is at a reference position within the actuator's linear stroke. A method for automatically calibrating an electrically controlled diaphragm valve actuator includes the following steps. The actuator is initially driven to a reference position. Second, the actuator is driven a first number of steps. Third, the actuator is returned to the reference position. Fourth, it is determined whether fall back has occurred. Fifth, a second number of steps is determined based upon whether fall back has occurred. Sixth, the actuator is driven the second number of steps in order to compensate for the fall back.

Abstract: An axial flow machine (1) having a rotor (2) that rotates about a fixed axis (5) the rotor having a number of blades (4), and a casing (3), radially surrounding the rotor (2). A turbulence generator (14) is positioned in a ring-shaped gap (9) formed between the tips (7) of the blades (4) and the inner surface (8) of the casing (3) to limit the sound emission of the flow machine (1).

Abstract: An optical compound eye sensor (100) comprises a plurality of ommatidium sensors (10) disposed in a fixed relationship to form a multifaceted sensing surface. Each of the ommatidium sensors (10) has a conical body (12) of refractive material situated longitudinally along a respective optic axis (14) and has a lens face (16) and an electro-optic element (18), such as an emitter or detector, situated at substantially opposing ends of the conical body (12) along the respective optic axis (14). The lens face (16) and the conical body (12) direct light either to or from the electro-optic element (18). The lens faces (16) of the ommatidium sensors (10) collectively define the multifaceted surface for receiving light from the light source.

Abstract: The invention relates to a method for bending plastic pipes in which a plastic pipe section is heated at the bending point. The feature of the invention is that the pipe section (4) is first heated in a water bath at about 80.degree. C. and then laid around one or more bending plates (3), depending on the desired shape, whereupon the bending plates are subjected to a heat source (5), for example a hot air blower, and partially heated, depending on the pipe material used, to a maximum of 160.degree. C. for 10 to 15 seconds, whereafter the pipe section is subjected to a first cooling process from inside of the pipe using cold compressed air for 10 to 15 seconds. The pipe section is then placed in a cold water bath.

Abstract: A variable area flow meter (10) for monitoring the rate of flow of a cooling and lubricating fluid medium about a pump seal, having a transparent flow tube (27) through which the fluid flows. An indicating and cleaning assembly (40) is mounted within the flow tube (27) and supports a spring by its float (56) that is movable back and forth along the length of the flow tube (27). A cleaning member (51) is affixed to the distal end (48) of a longitudinally extending shaft (46) of the indicating and cleaning assembly (40) and is tight frictional contact with the inner wall (28) of the flow tube (27). The float (56) and cleaning member (51) engage and scrape the inner side wall (28) of the flow tube (27) during a cleaning operation to remove any accumulated dirt and debris from the inner side wall (28) of the flow tube (27).

Abstract: A tufting machine has a main drive shaft, a looper shaft and parallel to the main shaft, a drive train therebetween in which a spindle supports, on its end, a sprocket which is driven by an endless belt from a wheel on the drive shaft. The other face of the sprocket carries a stroke control lug provided with a orbital crank pin which reciprocates a link connected to a lever on the looper shaft thereby for rocking the looper shaft, rocking the loopers carried by the looper shaft.