Abstract: An improved ellipsograph capable of drawing dotted or dashed lines comprising a drawing unit with a small motor which drives a pen holder and two pull discs causing them to turn synchronously to draw ellipses in any shape from real circle to horizontal line by adjusting the radius of circumambulation of the pen and of the puller carriers, and a drawing control unit for controlling and selecting a dotted or a dashed line.

Abstract: Feed supplements, which increase the dwell time of ingested nutrient matter in the gastrointestinal tract of food producing animals, and which provide for increased digestion and absorption of ingested nutrient matter, are administered to food producing animals to increase feed efficiency.

Abstract: A method and apparatus are provided for protecting computer software using an active coded hardware apparatus which is adapted to be connected by an interface connector to a communications port of a computer. The computer is directed by a coded software program in which a small section of the code of the computer software interrogates the communications port periodically to determine if the active coded hardware device is present and connected. The active coded hardware device has a permanently established preset code on an active presettable counter circuit which code is transmitted when interrogated. If the active coded hardware device is present when interrogated and the correct code returned through the communications port of the computer, the program is permitted to continue insuring that the software is properly protected at all times. The active coded hardware device with its particular code and circuitry are sealed in epoxy as a deterrent against tampering.

Abstract: Ultrafine cobalt and nickel powders are produced from sulfate solutions containing ammonia under hydrogen pressure in the presence of a small amount of a reductant from the group consisting of metal hydrides, metal borohydrides and metal borides. Cobalt powders having a particle size of about 2 micrometers produced in accordance with the invention have been used successfully in the production of cobalt-cemented tungsten carbide.

Abstract: A process is provided for removing hexavalent selenium from an acidic sulfate solution containing at least one metal ion from the group consisting of nickel, cobalt and copper at ambient pressure and at a temperature not exceeding the boiling point of the solution. The solution is treated with an agent from the group consisting of a compound which will produce nascent hydrogen in the solution and finely divided metal from the group consisting of nickel, cobalt and copper resulting from in situ precipitation of the metal in the acid sulfate solution. Thus, following treatment with the compound, the hexavalent selenium is reduced to a form separable from the solution by solid-liquid separation.

Abstract: A game shoe having a novel outsole which includes, a skirt adhesion member located on the bottom surface of the forepart of the outsole, first projections and second projections provided on the bottom surface of the rearpart of the outsole and the bottom surface surrounded by the skirt adhesion member. The first projections are cylindrical, different in size and are formed in such a manner that the greater the height is, the smaller the diameter will be. The second projections are provided with skirt adhesion bottom ends respectively to contact the floor surface.

Abstract: Novel phenoxyphenyl and phenoxypyridyl benzoyl ureas and a process for their preparation are provided. The novel ureas are useful as the active toxicant in pesticidal compositions.

Abstract: Ceftazidime bishydrobromide crystalline monohydrates are provided and are useful for preparing crystalline ceftazidime pentahydrate.

Abstract: A camera can create a combined image on the film with two different light sources, and it comprises a slide projecting device mounted between the camera lens and the camera body. Upon inserting a mask and a slide transparency into the slide projecting device, the subject image on the slide will be projected and merged with external image coming through the camera lens to form a combined image on the film without using darkroom montage technique or photo studio facilities; it is particularly useful and convenient for a sight-seeing traveller to put his (or her) own portrait against a landscape or architecture background without bothering other people to take a picture for him (or her) or using a tripod.

Abstract: A retractable comb and brush includes a casing having a perforated pad drilled with plurality of bristle holes, a bristle means fixed with plurality of bristles extendible and retractable through the bristle holes and a bristle extender raising the bristles outwards for combing use, wherein the bristles may be automatically retracted by depressing a releasing button to separate a latch normally locking a positioning gear formed on the bristle extender.

Abstract: A method of determining crash deflection data for an automobile at a number of crash speeds of interest in which a single vehicle is impacted at a first speed and the energy absorbed in that impact is determined and the vehicle is impacted at a second, lower speed that results in a total vehicle energy absorption equivalent to that absorbed by the vehicle had it been initially impacted at a desired speed higher than the first speed.

Abstract: (6R,7R)-7-[(Z)-2-(2-triphenylmethylaminothiazol-4-yl)-2-(2-tert.-butoxycarb onylprop-2-oxyimino)acetamido]-3-(1-pyridiniummethyl)ceph-3-em-4-carboxylat e is isolated by formation of N,N-dimethylacetamide solvates.

Abstract: The liquid carrier in a Fischer-Tropsch synthesis slurry reactor system is periodically or continually separated and subjected to cracking and isomerization in the presence of suitable catalysts. The treated carrier is returned to the reactor system and the accumulation of high viscosity paraffin in the reactor slurry is minimized. Suitable catalysts include a mixture of cracking and isomerization catalysts. Zeolite ZSM-45 is a novel constituent of the catalyst system.

Abstract: Disclosed is an optical waveguide fiber coating system having means for cooling the hot fiber prior to the time that the fiber enters the coating apparatus. The cooling means comprises an elongated coolant tube through which the fiber passes. Cool dry helium is flowed into that end of the coolant tube into which the fiber enters. In a preferred embodiment, the coolant tube is surrounding by a chamber containing a liquified gas. The helium is cooled by flowing through a coil submerged in the liquified gas prior to being flowed into the tube. An iris diaphragm located at the fiber input end of the coolant tube prevents the entry of moist, warm air into that tube.

Abstract: Tubular apparatus for delivering steam or other hot fluids to an oil well comprises an inner tubular having an outer surface and defining an inner space for conveying fluids at a temperature greater than 400 degrees F., and an outer tubular disposed around the inner tubular and defining an annular space with the inner and the outer tubulars being connected together. The annular space is closed to atmospheric pressure. A vacuum is established within the annular space. A getter material for absorbing at least one active gas is disposed within the annular space. Active gases which are absorbed by the getter material include hydrogen formed by corrosion of the outer tubular which hydrogen migrates through the outer tubular into the annular space and gases such as nitrogen, carbon monoxide, and hydrogen that are released from the inner tubular at elevated temperatures.

Abstract: Polymers containing amine functionality, prepared by hydrolyzing polymers bearing carbamate functionality, may be converted to dispersants useful in lubricating oils.

Abstract: High purity alkyl glyoxylate is produced from complex mixtures containing alkyl glyoxylate, alkyl glycolate, water, alcohol and miscellaneous impurities. High purity alkyl glyoxylate is useful in the synthesis of alkyl glyoxylate polymers.

Abstract: A thermoelectric device exhibiting both structural integrity and decreased stress across the device notwithstanding the application of thermally cycled temperature differentials thereacross includes, electrically interconnected thermoelectric elements and a rigidly affixed substrate. Thermal stress is relieved by using flexible conductors to interconnect the thermoelectric elements, and by the use of a flexile joint to attach a second substrate to the remainder of the device. Complete elimination of the second substrate may also be used to eliminate stress. Presence of the rigidly affixed substrate gives the device sufficient structural integrity to enable it to withstand rugged conditions.

Abstract: A catalytic cracking process comprising secondary injection of an additive catalyst, ZSM-5 type zeolite, at a point downstream of the point of introduction of the hydrocarbon feed is disclosed.

Abstract: A method for the preventive and curative treatment of coccidial infections in humans and other animals comprising the administration thereto of an amidinourea of amidinothiourea.