Abstract: A push bumper for tow trucks comprising a rigid frame defining a flat center portion and rearwardly canted end portions with a front plate secured over the face of the frame and a back plate secured to the rear of the frame. The back plate is provided with upper and lower flanges which are matingly received within the front plate and frame assembly and with end flanges which project forward into supporting engagement with the canted end portions of the front plate and frame assembly. Channel iron internal reinforcing members are disposed between the front and back plates and a headlamp and grill protector is provided at the top of the bumper. Back end plates are also provided to close off the space between the ends of the back plate and the extremities of the canted end portions to provide a sealed structure free of openings through which corrosive materials might enter the interior of the bumper.

Abstract: For use in repairing or retreading tires, particularly large tires for earth-moving equipment and the like, the portion to be repaired or retreaded is covered and surrounded by a flexible enclosure attached to the tire in gas-sealing relationship by an adhesive. The adhesive will remain effective even at the temperatures necessary for vulcanization. The enclosure has a gas connection so that it can be evacuated or pressurized to remove air and gas occlusions. A gasket can be used in conjuction with the adhesive.

Abstract: In a capacitive keyboard using a polarized dielectric commonly called an electret, the keys are organized according to a matrix by rows and columns, the signals generated on the column conductors being of opposite polarity with respect to those generated on the row conductors. The movable armatures of the variable capacitors of the keys also act as bridging elements to allow the crossing of the row and column conductors and as snap elements.

Abstract: Anti-tumor low-toxicity coriolin derivatives represented by the following general formula: ##STR1## wherein one of X and Y is ##STR2## and the other is >C OH, >C.dbd.

Abstract: Apparatus for tying together concrete form panels includes an elongated tie and means attachable to a concrete form panel for clamping the tie to restrain relative movement between the tie and the form panel. The tie has end portions of a first transverse dimension and adjacent longitudinally inward portions of a second and smaller transverse dimension with a longitudinally outwardly sloped surface extending between each such inward portion and its adjacent end portion. The tie end portions may be either integral with the rest of the tie, or separate threaded members. The clamping means includes at least one member movable between a clamping position receiving the tie and a nonclamping position away from the tie. This clamping member has a recess for matingly receiving the longitudinally inward portion of the tie, and the portions of the clamping member adjacent the recess and distal the form panel engage the sloped surface of the tie when the clamping member is moved into the clamping position.

Abstract: Veneer production from softwood logs is improved by adding at least about 0.003% of urea to the hot water soaking vats prior to peeling the veneer from the logs. Enhanced results are achieved when urea is added together with a base such as sodium hydroxide.

Abstract: A method for the manufacture of a selective oxidation catalyst by heating titanium dioxide in the presence of water prior to treating the titanium dioxide with vanadium oxytrichloride in vapor form and then heating the treated titanium dioxide. This treatment with water and vanadium oxytrichloride is repeated a number of times until the desired selective oxidation catalyst is obtained.

Abstract: A method for electrically bonding tantalum thin film capacitor networks to other networks is described. A first non-conducting support member has a thin film tantalum capacitor mounted thereon. A second non-conducting support member has another component such as a resistor mounted thereon. The two non-conducting support members are placed in a back-to-back position so that the thin film tantalum capacitor and the other component are remote from each other. These two non-conducting support members are then bound together and dipped into a molten solder bath to form a solder coating on the metal elements of the completed network.

Abstract: A three-dimensional ultrasonic scanning apparatus produces projection pictures on the surface of an object under inspection or examination and on planes perpendicular thereto. The amplitudes of the echo pulses produced by the ultrasonic scanning appartus, which uses an angle probe, are stored in a memory having at least one storage position relating to each projection of a reflecting point within the examined area. Only the highest echo amplitude originating from all the reflecting points lying on a projection line at right angles to the projection plane in question is recorded--not the highest amplitude from each reflecting point on the projection line. Thus, only those echo pulse amplitudes necessary to produce a projection picture of the object are stored in the memory thereby substantially reducing the required memory capacity.

Abstract: A bland texturized monofilament protein product having a texture and mouth feel simulating animal meat is prepared by forming an aqueous slurry of a protein material, injecting high pressure steam into the slurry to propel it through a confined treatment zone, centrifugally spinning the protein material into monofilaments, and recovering the textured monofilaments in a collection zone. Apparatus for performing this process comprises means for injecting steam into a protein slurry, means defining a confined treatment zone wherein the injected steam and protein are contacted, and means for centrifugally spinning the steam-treated protein material into monofilaments.

Abstract: A rotating brush assembly for a vehicle washing apparatus is disclosed in which the brush assembly, which includes a brush, a brush shaft supporting the brush, a brush motor for driving the brush shaft and a flexible elastic coupling, is permitted to swing or tilt in response to the force exerted on the brush by the movement of the vehicle relative to the vehicle washing apparatus. The flexing of the flexible elastic coupling, which couples the brush shaft to the support arm, permits the brush to tilt or swing in any direction. For example, when the brush assembly engages the front of a vehicle, the flexible elastic coupling permits the brush to tilt as it passes along the front end of the vehicle. The brush motor rotates the brush in a direction which causes the brush to walk along the front of the vehicle.

Abstract: A rotary atomizer suitable for spraying crops with liquid in the shape of a hollow truncated cone having a toothed periphery and internal radial grooves has asymmetric teeth, one side of each tooth being radial and the other side of each tooth being disposed at an angle, preferably 30.degree.-60.degree. to the radius. The grooves lead to the gaps between teeth and may be similarly assymmetrical.The atomizer is unidirectional being rotated so that the radial teeth edges are the leading edges. It may be used singly, or as a stack of cones.

Abstract: An apparatus for recording binary information on a flexible magnetic disk of small dimension, comprises a rotatable hub connected to a plate on a first surface of which is formed a spiral guide. The hub has a cylindrical portion engageable accurately with a corresponding central hole of the disk and it is provided with a radial driving dog engageable on the fly, and with play, with a corresponding radial notch opening out of the central hole. A recording head is mounted at the end of an arm which has an element cooperating with the spiral guide of the plate for being moved, radially with respect to the disk, in synchronism with the rotation of the plate and of the same disk.

Abstract: A rotary atomizer suitable for spraying crops with liquid is driven by the liquid itself. The atomizer comprises a hollow, truncated cone, a central axial shaft extending through the interior of the cone, a liquid jet driven turbine on the shaft, and an opening in the turbine so that liquid flows from the turbine to the interior of the cone.The liquid may be used at pressure of 0.7 to 10 bars gauge and feed rates of 10 to 1,000 ml/min, with the rate of feed being equal to the rate of discharge so that there is no liquid recycle.

Abstract: A roll holder is disclosed having a pair of spaced roll supporting means, wherein one of the supporting means comprises a movable arm pivotable about an oblique axis between a roll supporting position and a roll loading position.

Abstract: In an apparatus for recording binary information on a flexible magnetic disk, a plate, is provided connected to an electric motor, for rotating the disk, and a spiral guide is formed on a first surface of the plate for moving a recording head radially with respect to the disk, in synchronism with the rotation of the plate and the disk. The improvement comprises an electronic circuit, which controls the angular speed of the motor, and quickly accelerates the motor, when the last binary information has been recorded on the disk, for shortening the time taken by the head to return to the rest position.

Abstract: The apparatus is adapted to simultaneously treating a pair of magnetic tape cassettes. The apparatus comprises two pairs of hubs, which cooperate with the reels of the magnetic tapes, and which can rotate in both directions at a substantially constant angular speed under the control of a single electric motor. A pair of magnetic heads are employed for writing and/or reading binary information on the two tapes. The data read by the heads are regarded as information only if they exceed a predetermined threshold value defined by a voltage generator. A control circuit, comprising a variable gain amplifier, maintains the ratio between the peak of the data detected and the value of the threshold substantially constant, taking into account the variations of the linear speed of the tapes.

Abstract: A rotary atomizer suitable for spraying crops with liquid comprising a stack of hollow truncated cones with internal grooves spaced apart by ribs mating with some of the grooves and held together on a central, stationary spindle by thrust bearings at either end.The central spindle may be hollow with holes from the interior to the exterior for feeding liquid to the cones.

Abstract: A vaporized driving fluid generator and engine unit are associated in open communication with each other with driving fluid being injected, in synchronized relation to the cyclic operation of the engine, into an externally heated casing which contains heat conductive elements that displace a substantial portion of the casing volume to vaporize the driving fluid. A cyclically operable expansible chamber engine is used and where such engine includes a reciprocable piston the piston may carry a tapered metering probe which reciprocates in the open communication between the generator and engine to increase the size of the open communication as the engine piston moves away from the open communication toward exhaust porting in the wall of the cylinder containing the piston.

Abstract: A process for preparing bleomycinic acid having a melting point of 228.degree.-230.degree. C. (decomposition) and an analysis of C: 40.80%, H: 5.29%, N: 16.45%, O: 24.78%, S: 4.53%, Cl: 3.37%, and Cu: 4.78% which is characterized by being soluble in water, difficultly soluble in methanol, acetic acid and dimethylsulfoxide, and insoluble in ethanol, ethyl acetate, acetone and ether, and which tests positive to Pauly and Ehrlich reactions but tests negative to ninhydrin, Sakaguchi, Dragendorf, Tollens, ferric chloride, Fehling and Molish reactions, and which has a maximum ultraviolet absorption spectrum at 246 m.mu. and 292 m.mu. and which has an infrared absorption spectrum bands at 3350, 1720, 1670, 1640, 1580, 1460, 1365, 1050, 770 (cm.sup.-1), and which can be hydrolyzed to yield 2'-(2-aminoethyl)-2,4'-bithiazole-4-carboxylic acid, L-threonine, 4-amino-3-hydroxy-2-methyl-.eta.-valeric acid, .beta.-hydroxy-histidine, .beta.-amino-.beta.-(4-amino-6-carboxy-5-methylpyrimidine-2-yl)-propionic acid, L-.beta.