baber/WOPTO huggingface dataset:
Patent CA-1106955-A (CA)
Inventor: SAXE ROBERT L
IPC: G02B5/23
Filed: 1978-09-11
Granted: 1981-08-11
Abstract: Abstract of the Disclosure Polymeric materials which are used to stabilize particles includ-ing colloidal size particles, particularly particl?s which polarize light or other radiation and include halogen in their composition.  The materials are long chain molecular copolymers having available functional groups such as OH or acidic groups in their structure and are soluble in liquids in which the colloidal particles are suspendable.  At least one monomer of those used to form the copolymer has a branched structure, which may include more than one branch.  Some of the materials are copolymers of 3,5,5-trimethylhexyl acrylate/2-hydroxypropyl acrylate/fumaric acid; 5,5-diethyl hexyl acrylate/2-hydroxypropyl acrylate/fumaric acid; and bis-2-ethylhexyl fumarate/3,5,5-trimethyl hexyl acrylate/vinylidene chloride/mesaconic acid.  The materials retard or prevent the suspended particles in light valve suspensions from grouping together when a voltage is placed across the suspension containing these particles.  The materials also reduce the voltage and electrical power needed to achieve a given change in light transmission for a light valve.  They also enable suspensions to be used at elevated temperatures without signifi-cant degradation.
Patent CA-1074604-A (CA)
Inventor: JOHNSON RICHARD E
IPC: D21F3/00
Filed: 1978-09-22
Granted: 1980-04-01
Abstract: ABSTRACT OF THE DISCLOSURE     A press section for a paper making machine including rolls arranged to form five sequential press nips for pressing multi-ply web with each of the nips being a double felted press, and the first nip formed between first and second rolls with the first roll having a suction gland extending between the first and second nip and the third roll having a suction gland extending between the second and third nip with the felts on the outer side of the web separated from the web immediately on the offrunning side of the first and second nips so that the outer surface of the web is ex-posed to atmosphere with a suction gland within the felt supporting the web so that water is first drawn from one side of the web and then the other side after passing through double felted nips.     -i-
Patent CA-1066492-A (CA)
Inventor: MOERTEL GEORGE B
IPC: A44B19/40
Filed: 1978-10-31
Granted: 1979-11-20
Abstract: ABSTRACT OF THE DISCLOSURE      A stringer for a slide fastener is formed by assembling head portions of a spiral coupling element through spaced slots in a support member which is transversely folded at one edge and has opposite folded portions secured together, thereby to retain the spiral coupling element by looped strap portions be-tween the slots extending at an oblique angle to the folded edge, the looped strap portions having a width substantially greater than the width of the slots.  There is also disclosed an apparatus for the manufacture of such stringer.
Patent CA-1123397-A (CA)
Inventor: COLLINS ROBERT J
IPC: G07F11/40
Filed: 1978-11-07
Granted: 1982-05-11
Abstract: ABSTRACT          The present invention relates to vending machines and the like, and more particularly, to a dispensing mechanism by which articles can be released from a module of a vending machine.  Most dispensing mechanisms in use today are so interrelated to the surrounding structure of the machine that they must be repaired on the site or else the entire machine must be transported to a repair facility.  A vending machine in accordance with the present invention includes one or more modules having a provision for moving articles toward the front of the module where they are received by a dispensing mechanism. A pivotable trap door is movable between a retaining position and an inclined releasing position.  A hinge connects the trap door to the module along its trailing edge.  At least one finger extends downwardly from the module floor and is so positioned that it is located beneath the trap door in the retaining position but is located above the trap door in the releasing position. A slot in the door extends forwardly from its trailing edge and is so disposed that the finger  passes through the slot as the door moves.  According to another aspect of the invention, the dispensing mechanism frame is secured to the module by a detent mechanism releasable by bending the frame sides inwardly.  A transparent window may be provided in the module floor which permits the bottoms of articles to be viewed without removing the articles from the machine.
Patent CA-1120433-A (CA)
Inventor: HEUFT BERNHARD
IPC: B65G47/68
Filed: 1979-01-12
Granted: 1982-03-23
Abstract: ABSTRACT OF THE DISCLOSURE           Apparatus for laterally deflecting articles, such as bottles, from the normal path of a series of such articles, on the basis of a predetermined criterion, such as size or shape, are provided.  The apparatus may be in the form of extensors which operate transversely to the direction of travel of the articles, in such manner that at any given moment only those extensors are extended which contact the article then being deflected.  An alternative embodiment comprises air jets produced by nozzles.
Patent CA-1130061-A (CA)
Title: Exothermic heat as a means of determining the  degree of delignification
Inventor: SHERMAN MICHAEL I
IPC: D21C7/12
Filed: 1979-03-08
Granted: 1982-08-24
Abstract: ABSTRACT OF THE DISCLOSURE       A process for continuously digesting cellulosic fibrous material wherein the degree of delignification of the cellulosic fibrous material in the digestion zone is continuously determined and monitored by determining the exothermic heat of the delignification reaction taking place in the digester is disclosed.  The exo-thermic heat of the delignification reaction is deter-mined by measurements of the temperature rise occurring in the delignification zone and the heat capacity of the cellulosic material and digesting liquor.
Patent CA-1125157-A (CA)
Inventor: HENDY BRIAN N
IPC: C08J7/052
Filed: 1979-03-13
Granted: 1982-06-08
Abstract: ABSTRACT OF THE DISCLOSURE:      The invention relates to an antistatic film having a polypropylene substrate and a polymeric heat-sealable surface layer on which is present an antistatic composition comprising (a) a quaternary ammoniom compound, such as choline chloride, (b) an organic polyol containing at least two free hydroxyl groups, such as glycerol, (c) a glyceride of a long chain fatty acid, such as glyceryl monostearate, and, optionally, (d) an ethoxylated amine salt, such as an ethoxylated tallow amine sulphate.    The composition is conveniently applied directly to the surface of a polymeric extrudate which is subsequently drawn to yield an oriented film, but at least the glyceride may be preblended into the film-forming polymer.    The invention facilitates the production of uniformly antistatic packaging films despite variations in ambient relative humidity.
Patent CA-1122661-A (CA)
Title: Embedment of hard particles in a metal surface
Inventor: RUDD WALLACE C
IPC: B23K13/00
Filed: 1979-04-06
Granted: 1982-04-27
Abstract: EMBEDMENT OF HARD PARTICLES IN A METAL SURFACE:            ABSTRACT OF THE DISCLOSURE:   A method and apparatus for embedding in a surface area of a metal part a plurality of particles of a material having a melting point higher than, and mechanical properties different from, the metal of the part.  The metal part is contacted with a pair of contacts, one at each end of the area, and electric current having a frequency of at least 3000 Hz is supplied to the contacts through a proximity conductor or conductors which overlies or overlie the area and which are spaced from the area by not more than five times the conductor width.  The current is maintained until the metal of the area reaches a temper-ature at least equal to the melting temperature thereof and the particles are inserted into the molten metal which is then cooled.  If the temperature of the molten metal exceeds the melting temperature of the particles, the molten metal is cooled before the particles completely melt.
Patent CA-1131874-A (CA)
Title: Protection arrangement for preventing damage at  a continuous casting plant for slabs
Inventor: ENGEL KURT
IPC: B22D11/12
Filed: 1979-04-23
Granted: 1982-09-21
Abstract: ABSTRACT OF THE DISCLOSURE     In a protection arrangement for preventing damage at a continuous casting plant for slabs in case of a metal breakthrough through the solidified strand skin, including a collecting device for molten metal provided below the mould at a supporting stand for the strand and enclosing the strand in the peripheral direction and made up of dis-placeable collecting plates, separate collecting plates for each side of the strand are provided at the supporting stand, the collecting plates on the broad sides each being connected with part of the supporting stand, and collecting plates displaceable by an adjusting device are provided for the narrow sides, overlapping the collecting plates on the broad sides.
Patent CA-1142581-A (CA)
Inventor: LANGLEY LAWRENCE W
IPC: G05B19/40
Filed: 1979-05-03
Granted: 1983-03-08
Abstract: ABSTRACT OF THE DISCLOSURE           A variable reluctance stepper motor including cooper-ating fixed and moving structures having tooth-like patterns of equal pitch but with the fixed and moving teeth having different lengths, measured in the direction of movement.  The smaller teeth are divided into groups which are offset from one another by fractions of a tooth pitch to provide a bi-directional motor capable of being stepped from one position to the next with the teeth tending to produce force in the desired direction carry-ing essentially all of the flux and the teeth tending to produce force in the opposite direction carrying essentially no flux.          The controller comprises a closed loop control system which senses a voltage indicative of motion on the driven windings, uses this voltage to confirm that motion has occurred, compares this voltage with one modeled after a waveform indicative of no motion and effects successive changes in the winding drive states at optimum times.
Patent CA-1153102-A (CA)
Inventor: BRICE JOHN C
IPC: H03H3/08
Filed: 1979-05-03
Granted: 1983-08-30
Abstract: Piezoelectric device comprising a protective housing containing a piezoelectric body bearing aluminium film electrodes. The surfaces of the electrodes which are not in contact with the piezoelectric body bear a passivating layer of amorphous aluminium oxide. The amorphous aluminum oxide layer may be made by heating the electrodes at a temperature between 250 and 550.degree.C in an atmosphere containing free oxygen. The piezoelectric device may be, for example an acoustic surface wave device.
Patent CA-1141661-A (CA)
Inventor: WATTS IAN S
IPC: A61K31/34
Filed: 1979-05-16
Granted: 1983-02-22
Abstract: Abstract Stabilised pharmaceutical formulations of prostacyclin or certain analogues thereof comprising an amino acid buffer, optionally containing a base, and the preparation of such formulations.
Patent CA-1130926-A (CA)
Title: Digital computer to tape recording unit  interface
Inventor: FARMER ROBRET L
IPC: H03M1/00
Filed: 1979-07-06
Granted: 1982-08-31
Abstract: 27177 DIGITAL COMPUTER TO TAPE RECORDING UNIT INTERFACE Abstract of the Disclosure In a digital computer system wherein a tape recording unit is utilized for program storage, an interface between the digital computer and the tape re-cording unit is provided which utilizes digital logic to decode the data from the tape recording unit and to generate a clock or timing signal from the data provided from the tape recording unit to insure the accurate transfer of data from the tape recording unit to the digital computer. The use of digital logic to decode the data from the tape recording unit and to generate the timing signal from the data output from the tape recording unit alleviates the need for circuit adjustments which are required in interfaces which utilize analog circuitry to decode the data from the tape recording unit or to generate the timing signal from the data output from the tape recording unit.
Patent CA-1123830-A (CA)
Title: Procede de preparation de nouveaux esters  du methyl-1 piperidinol-4
Inventor: BEREGI LASZLO
IPC: C07D401/12
Filed: 1979-08-03
Granted: 1982-05-18
Abstract: Des esters du méthyl-1 pipéridinol-4 de formule dans laquelle : R est chloro-7 quinolyle-4, trifluorométhyl-7 quinolyle-4 ou trifluorométhyl-8 quinolyle-4, et leurs sels d'addition avec des acides appropries, ont été préparés par réaction d'un dérivé chloré de formule R - Cl avec l'amino-2 benzoate de méthyl-1 pipéridyle-4. Ces nouveaux composés et leurs sels physiologiquement tolérables peuvent être utilisés en thérapeutique notamment dans le traitement des manifestations inflammatoires et douloureuses.
Patent CA-1168241-A (CA)
Inventor: MATSUMOTO JUN-ICHI
IPC: C07D213/77
Filed: 1979-08-24
Granted: 1984-05-29
Abstract: ABSTRACT           This invention relates to 1,8-naphthyridine compounds of the formula   wherein X is a halogen atom especially fluorine atom, R1 is an ethyl group or a vinyl group, and R2 is a hydrogen atom or a lower alkyl group, their salts and processes for the preparation of them.  The 1,8-naphthyridine compounds and their salts are useful as antibacterial agents and intermediates thereof.
Patent CA-1108880-A (CA)
Inventor: MCMANUS RAYMOND
IPC: F25D1/00
Filed: 1979-08-23
Granted: 1981-09-15
Abstract: ABSTRACT OF THE DISCLOSURE          An improved refrigerator system which includes a modular duct unit with control means to provide for the use of the cooler, outside, ambient air to cool a refrigerated cooler to reduce the need to operate at full capacity the normal refrigeration compressor system for the cooler.
Patent CA-1133458-A (CA)
Inventor: CHIREAU ROLAND F
IPC: B01J21/18
Filed: 1979-09-24
Granted: 1982-10-12
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention provides a method of making an improved catalyst useful for hydrogenation of organic compounds and in other reactions.  The method comprises mixing a porous particulate refractory support material with a hydrophobic polymeric binder to form an essentially homogeneous mixture and then catalyzing this mixture by introducing into the  pores of the mixture a salt of a metal of the eight group of the Periodic Table in a non-polar solvent in which the salt is ionizable.  The concentration of the salt is sufficient to provide a catalytic concentration of the metal of the salt of at least about 0.1 mg/cm2.  Further in accordance with the method, the salt is reduced to the catalytic metal within the pores of the mixture, specifically within the pores of the support material, by contacting with a selected reducing agent, for example, hydrazine or sodium bis (2-methoxyethoxy) aluminum hydride, preferably in solution.  After the reduction is completed, the mixture is washed free of reaction products, except the catalytic metal.  A porous structure is formed from the mixture either before or after the catalysis.          Preferably, the structure is sintered as a final step.  The structure may be in a form of a flat sheet or of any other desired configuration, such as tubular, with or without a support backing or the like.  The support material in the mixture is preferably activated carbon having an average part-icle diameter of about 0.01 - 0.3 microns and the structure preferably has pores of an average diameter of about 30 - 300A°.          Most preferably, the binder is polytetrafluoroethylene.  During the mixing step, the mixture is sheared to a fine filament-like fibrous structure of a uniform spongy nature with no grossly detectable free carbon or polytetrafluoroethylene particles.  The type of activated carbon selected preferably Abstract continued has a surface area of about 500 - 600 sq. meters per gram, a tri-modal pore volume distribution and an average pore size of about 5 - 10 microns.  The catalyst is characterized, in part, by having high hydrogenation activity while containing a very small concentration of the catalytic metal.
Patent CA-1152063-A (CA)
Inventor: UMEZAWA HAMAO
IPC: C07H15/22
Filed: 1980-02-04
Granted: 1983-08-16
Abstract: ABSTRACT OF THE DISCLOSURE:       3',4'-Dideoxy derivative and 1-N-((S)-a-hydroxy-.omega.-aminoalkanoyl)-3',4'-dideoxy derivative of kanamycin A are now synthetized from kanamycin A and show a wider and/or higher antibacterial activity than the parent kanamycin A so that they are useful in therapeutic treatment of infections by gram-negative and gram-positive bacteria, including drug-resistant strains thereof.  The production of these new derivatives may be made by preparing a protected kanamycin A derivative having its 3'- and 4'-hydroxyl groups unprotected and having its all or substantially all other functional groups protected from the initial material, kanamycin A, sulfonylating the 3'- and 4'-hydroxyl groups, removing the 3'- and 4'-sulfonyloxy groups from the re-sulting 3',4'-di-sulfonic acid ester product to give a 3'-eno-kanamycin A derivative, hydrogenating the 3'-eno-kanamycin A derivative to saturate the 3',4'-unsaturated bond and to yield a protected 3',4'-dideoxykanamycin A product, followed by removal of the remaining protective groups, and optionally further followed by 1-N-acylation of the 1-amino group of the resulting 3',4'-dideoxy-kanamycin A with an (S)-.alpha.-hydroxy-.omega.-aminoalkanoic acid or its reactive equivalent.
Patent CA-1124121-A (CA)
Title: Soft absorbent imprinted paper sheet and  method of manufacture thereof
Inventor: TROKHAN PAUL D
IPC: D21F11/00
Filed: 1980-03-07
Granted: 1982-05-25
Abstract: SOFT ABSORBENT IMPRINTED PAPER SHEET AND METHOD OF MANUFACTURE THEREOF                           Abstract Wet-laid paper having, when creped, improved bulk, softness, and flexibility; a relatively large cross-machine-direction to machine-direction stretch ratio; and improved burst to total tensile strength ratio.  The paper is charac-terized by an array of uncompressed zones which are in staggered relation in both the machine direction and the cross-machine direction; and by having each uncompressed zone defined by a picket-like discontinuous lineament of compacted fibrous material.  The invention also includes a process for making the paper through the use of an imprinting fabric which is configured to precipitate the requisite compacting of the picket-like lineaments prior to final drying and creping of the paper.
Patent CA-1135258-A (CA)
Inventor: D SOUZA RICHARD
IPC: C07H19/06
Filed: 1980-04-01
Granted: 1982-11-09
Abstract: ABSTRACT     A process for the manufacture of 5'-deoxy-5--fluorouridine a compound having cytostatic activity, which process comprises cleaving the acyl groups from a 1-(5-deoxy-2,3-di-0-acyl-.beta.-D-ribofuransoyl)-5--fluorouracil.
Patent CA-1108497-A (CA)
Inventor: MOTHERSILL GEORGE E
IPC: F24H3/06
Filed: 1980-04-10
Granted: 1981-09-08
Abstract: ABSTRACT OF THE DISCLOSURE             According to the present invention, a furnace is heated by means of a radiant heater, radiating infra-red rays downwardly in the furnace to a non-reflective conduit conveying a heat collecting fluid medium through the furnace. As the rays impinge on the surface of the conduit they are converted to heat energy which is conducted through the conduit to the fluid medium.
Patent CA-1156507-A (CA)
Inventor: DE STEFANIS VINCENT A
IPC: C12N9/99
Filed: 1980-06-04
Granted: 1983-11-08
Abstract: Abstract of the Disclosure A method to inactivate the proteolytic enzyme(s) contained in commercial heat stable bacterial alpha-amylase under conditions which retain full alpha-amylase activity.  Use of thus purified alpha-amylase enzyme plus surfactants that are approved for use in bread to inhibit firming and improve the keeping quality of bread and other bakery products.
Patent CA-1117520-A (CA)
Inventor: DRAGOJEVIC BOZO
IPC: F28D1/053
Filed: 1980-06-27
Granted: 1982-02-02
Abstract: ABSTRACT OF THE DISCLOSURE         A heat exchange assembly is disclosed, which assembly when placed, for example, in a temperature controlled environment, allows heat exchange between the environment and a fluid passed through the assembly.  The heat exchange assembly comprises a plurality of elongated headers each having closed ends and longi-tudinally arranged inlet holes and outlet holes to provide fluid passage through the header from the inlet holes to the outlet holes transversely to the longitudinal.  The headers are inter-connected by tubes so that the fluid will pass sequentially through successive headers.  Each header may advantageously be provided with a removable plate to allow insertion of cleaning reamers into the inside of the tubes.  The heat exchange assembly is adapted to be constructed from readily available materials to form a self-supporting unitary structure.
Patent CA-1140255-A (CA)
Inventor: KOWOLS GILBERT J
IPC: H01Q1/36
Filed: 1980-07-24
Granted: 1983-01-25
Abstract: ABSTRACT OF THE DISCLOSURE         An adjustable mobile antenna comprising a dielectric rod several feet in length, a loading coil comprising a con-ductive wire helically wound in close fashion along an upper portion of the length of the dielectric rod, a protective outer insulator jacket covering the loading coil and a major portion of the dielectric rod, and a dielectric sleeve mounted on the outside of the protective jacket and slidable thereon along the length of the loading coil to effect "dielectric loading" of the loading coil to control the frequency of the antenna.
Patent CA-1147254-A (CA)
Inventor: FLOWERS WILLIAM F III
IPC: B01F15/02
Filed: 1980-10-16
Granted: 1983-05-31
Abstract: WILLIAM F. FLOWERS, III       CHEMICAL FEED SYSTEM                          ABSTRACT OF THE DISCLOSURE               Apparatus for handling, diluting and adding a biocide chemical to a water cooling system which includes a venturi device powered by the motive water in the cooling system and connected to a biocide chemical supply and to a control network, including flow control means and valve means for obtaining controlled feed of the chemical into the system.
Patent CA-1152725-A (CA)
Inventor: BANEY RONALD H
IPC: C04B35/571
Filed: 1980-10-21
Granted: 1983-08-30
Abstract: Abstract Pre-polymers which are substituted with (CH3)3SiO-groups are useful for the preparation of fine grained silicon carbide ceramic materials.  The pre-polymers exhibit ease of handling and their use to obtain silicon carbide ceramic materials results in high yields.
Patent CA-1146747-A (CA)
Title: Furnaces
Inventor: PHILIP THOMAS P
IPC: F27D9/00
Filed: 1980-10-24
Granted: 1983-05-24
Abstract: Abstract of the Disclosure The invention relates to a method for cooling a mouth of a converter through which contents of the converter are discharged at high temperature.  A cooling medium such as a combustible liquid of high temperature cracking characteristics is maintained in a storage zone and cooled.          The cooled cooling medium is introduced in a first header zone maintained at a preselected temperature or pressure, and selectively admitted to a plurality of individually segmented zones, in conduits in the form of a serpentine pipe exposed to the high temperature and embedded within a refractory material.  The zones are disposed in combination with the mouth and the refractory material lining the mouth such that the individually segmented zones may be cooled.          Provision is made for expansion and contraction of the pipe within each segment independently of the refractory material lining the mouth and in heat exchange relationship there-with.  A heated cooling medium is admitted to a second header zone from the individually segmented zones, the second header zone being maintained under a predetermined pressure.  The heated cooling medium is introduced into the storage zone or a cooling zone for recycle of same.