baber/WOPTO huggingface dataset:
Patent CA-1112066-A (CA)
Title: Photoflash lamp construction and method of making  same
Inventor: ARMSTRONG DONALD E
IPC: F21K5/06
Filed: 1979-10-26
Granted: 1981-11-10
Abstract: PHOTOFLASH LAMP CONSTRUCTION AND METHOD OF MAKING SAME     ABSTRACT OF THE DISCLOSURE             A nigh-voltage type photoflash lamp filled with a filamentary combustible material and oxygen and having an ignition structure including a pair of spaced-apart lead-in wires sealed in one end of the glass envelope of the lamp and encapsulated within an interior pro-truding portion of the envelope glass.  The termination of each of the lead-in wires within the envelope is bare of sealing glass and substantially flush with the surrounding glass surface, and a coating of primer material about the inner end of the protruding portion of glass within the envelope covers and bridges the bare terminations of the lead-in wires.  Also disclosed is a method of making a lamp including the steps of heating one end of a length of glass tubing to seal it closed, pushing a pair of spaced-apart metal lead-in wires through the heated, closed end of the glass tubing whereby the heated glass thereat is stretched and sealed over the wires to provide a protruding portion of glass within the tubing which encapsulates the ter-mination of the lead-in wires, selectively removing only the glass covering the terminations of the lead-in wires to expose the bare metal thereof, applying a coating of primer material about the end of the protruding portion of glass within the tubing so as to cover and bridge the bare terminations of the lead-in wires, and then finishing the lamp.
Patent CA-1116055-A (CA)
Inventor: ARNOLDY ADRIAN F
IPC: B02C18/06
Filed: 1979-10-31
Granted: 1982-01-12
Abstract: Abstract A tub grinder suitable for comminuting forage crops as feed for livestock comprising a rotating circular tub having a floor with an opening therein through which a hammermill communicates for chopping the forage.  When the forage is fed too quickly and overloads the hammermill, a governor senses that the rotational speed of the hammermill has been reduced and operatively signals the tub driving mechanism to slow the speed thereof, thus feeding forage at a lesser rate and allowing the hammermill to recover.  A similar but opposite process occurs when the hammermill increases in speed to the extent that it is able to handle additional forage.  A dampening mechanism is used in conjunction with the governor and functions to allow the tub rotation to slow immediately upon the hammermill being overloaded, but somewhat delays the increase of the tub rotation when the hammermill can receive additional forage.  The operation of the dampening mechanism reduces apparatus damaging oscillations which are commonly found in conventional machinery of this type.
Patent CA-1135962-A (CA)
Inventor: FREISSMUTH ALFRED
IPC: C21C1/02
Filed: 1979-11-09
Granted: 1982-11-23
Abstract: Abstract of the Disclosure A process is disclosed for abating the dust and flame nuisance in the handling of slags after the desulphurisation of pig iron, and also a desulphurisation mixture suitable for this purpose, based on calcium carbide and gas-evolving components, wherein 2 - 10% by weight of fluor-spar is added to the mixture.
Patent CA-1143949-A (CA)
Inventor: BATHELLIER ANDRE
IPC: C22B60/02
Filed: 1979-11-22
Granted: 1983-04-05
Abstract: ABSTRACT OF THE DISCLOSURE Uranium recovery process Process for the recovery of the uranium present in a phosphoric acid solution by bringing the said solution into contact with an organic solvent suitable for extracting the uranium, wherein the organic solvent comprises a system of extractants constituted by an acid organophosphorus com-pound and by a neutral phosphine oxide of formula:                             in which the radicals R1, R2 and R3 are identical or different alkyl, aryl or alkoxyalkyl radicals, at least one of the rad-icals R1, R2 and R3 being an alkoxyalkyl radical.
Patent CA-1143081-A (CA)
Inventor: KAMADA KAZUMASA
IPC: C08J7/04
Filed: 1979-12-28
Granted: 1983-03-15
Abstract: ABSTRACT OF THE DISCLOSURE A coating composition comprising (a)  a monomer mixture of 30 to 90% by weight of at least one poly(meth)acrylate of mono or polypentaerythritol having at least three (meth)acryloyloxy groups in one molecule of the formula (I)         (I) wherein at least three of X11 X12- X13- X22  X23. . . Xn2, Xn3 and X14 are CH2=CH-COO- groups and the rest of them are -OH groups  n is an integer of 1 to 5 and R represents hydrogen or a methyl groups, and 70 to 10? by weight of at least one monofunctional acrylate or methacrylate having at least one ether bond in one molecule  a boiling point above 150°C under normal pressure and a viscosity below 20 centipoises at 20°C; (b)  0.01 to 10 parts by weight of a photosensitizing agent per 100 parts by weight of a said monomer mixture;      (c)  0.0001 to 2.0 parts by weight per 100 parts by weight of said monomer mixture of at least one silicon type surface active agent of the formula (II) or (III):                           (II) wherein X is   m and n are positive integers being smaller than 200 and x and y represent 0 or positive intergers being smaller than 200 and satisfy the formula   10 and R1 represents  -H or an alkyl, acyl or aryl group having 1 to 6 carbon atoms or          (III) wherein Y is  , m and n represent positive intergers being smaller than 200, x and y represent 0 or positive intergers being smaller than 200 and z represents 0 or a positive integer of 1 to 5 and satisfy the formula  , R2 represents  , -H or an alkyl, acyl or aryl group having 1 to 6 carbon atoms, and R3 represents -H or an alkyl,acyl or aryl group having 1 to 6 carbon atoms; and (d) 10 to 1900 parts by weight per 100 parts by weight of said monomer mixture of at least one organic solvent capable of forming a uniform solution upon mixing with said monomer mixture. A process of coating surfaces with these coating compositions is also disclosed.
Patent CA-1148966-A (CA)
Title: Thermally stable polycarbonate compositions
Inventor: MARKEZICH RONALD L
IPC: C07F9/145
Filed: 1980-01-07
Granted: 1983-06-28
Abstract: ABSTRACT OF THE DISCLOSURE            Thermally stable polycarbonate compositions are obtained by admixing with a high molecular weight aromatic polycarbonate resin a stabilizing amount of a phosphite oxetane containing a hindered phenol.
Patent CA-1117619-A (CA)
Inventor: QUICK WILLIAM H
IPC: G01D5/347
Filed: 1980-01-21
Granted: 1982-02-02
Abstract: MEANS FOR  SENSING AND COLOR MULTIPLEXING OPTICAL DATA OVER A COMPACT FIBER OPTIC TRANSMISSION SYSTEM     ABSTRACT     Optical sensor apparatus and associated means by which to color multiplex optically encoded information signals over a compact fiber optic transmission system.  The sensor apparatus includes a movable coded masking means.  The masking means is fabricated with a plurality of parallel rows, each of which rows comprising a binary weighted pattern of alternately spaced transparent and opaque areas.  Incident white light is spectrally dispersed, so that each of the rows of the masking means receives a respective color.  As the masking means is moved in response to an input physical parameter that is to be sensed, the corresponding binary coded output color signals that are transmitted through the transparent areas of the masking means are recombined and multiplexed over either a single optical fiber or a bundle of incoherent optical fibers.  After demultiplexing or spectral dispersion of the multiplexed output signal, a photo-detector means is utilized to receive the individual demultiplexed binary coded output color signals and to provide a numerical equivalent of the position of the masking means and, accordingly, the physical parameter represented thereby.
Patent CA-1154106-A (CA)
Inventor: SIX JEAN-CLAUDE G
IPC: H03H19/00
Filed: 1980-01-31
Granted: 1983-09-20
Abstract: 1                 PHF. 79-503.            ABSTRACT:           A low-pass filter for low frequency signals having first portions situated above on one side and second portions situated on the other side of an average value.  The filter comprises at least two integrators, each comprising a capacitor, included between the input and the output of a voltage-inverting amplifier and a current source connected to said output, and three threshold comparators, of which the first one is connected to the input of the filter, of which the second one is included after the first integrator, and of which the third one is connected to the output of the filter. The arrangement can be used in logic circuitry, wherein it prevents that spurious signals can  affect the signal waveform used for the logic circuit.
Patent CA-1117852-A (CA)
Inventor: TOROK JOHN
IPC: G21F9/00
Filed: 1980-02-29
Granted: 1982-02-09
Abstract: ABSTRACT OF THE DISCLOSURE               Heat transfer and associated surfaces in nuclear reactors are decontaminated by treating the surface with ozone to oxidize acid-insoluble metal oxides to a more soluble s ate, removing oxidized solubilized metal oxides, and removing other surface oxides using low concentrations of decontaminating reagents.  Ozone treatment has been found very effective with alloys having surface metal oxides rendered more easily dissolved by ozone oxidation especially with chromium or chromium-nickel containing alloys.
Patent CA-1149932-A (CA)
Inventor: KAWAI TSUTOMU
IPC: G11B15/60
Filed: 1980-04-29
Granted: 1983-07-12
Abstract: Abstract of the Disclosure This invention relates to a tape anti-back-scrape device for a video tape recorder which is provided with an arm through which a pinch roller is pivoted to loading gears, the pinch roller having at one end of a small arm and tapered rollers pivoted thereto for drawing out the tape in co-operation with the pinch roller and take-out pin.  The pins and tapered roller are biased elastically circumferentially of the rotary head.  Stopper pins are provided so that when loading by the pinch roller and take-out pin is finished the arm and rocking plate abut against the stopper pins to escape the tapered roller out-wardly from the peripheral surface of the rotary head.  The wound tape on the rotary head is free from mutual back-scratch, whereby the tape and recording signal thereof are not damaged.
Patent CA-1147763-A (CA)
Inventor: RISER RENE
IPC: E05F15/14
Filed: 1980-04-29
Granted: 1983-06-07
Abstract: Abstract of the Disclosure A drive mechanism for the leaf or leaves of a sliding door or the like comprises a rotatable shaft and at least one non-rotatable roller head which can be longitudinally displaced along the shaft when the shaft is rotated.  The roller head comprises a plurality of rollers which are inclined to and in contact with the shaft.  On rotating the shaft the roller head is displaced along the shaft due to the contact of the inclined rollers on the shaft.  The lateral movement of the roller head may be transferred to the leaf of a sliding door or the like.
Patent CA-1139673-A (CA)
Inventor: NISHIMURA YASUSHI
IPC: C01B32/384
Filed: 1980-06-19
Granted: 1983-01-18
Abstract: ABSTRACT OF THE DISCLOSURE           Discrete spherical particles of activated carbon treated with ammonia exhibit high adsorption of noxious substances in the alimentary tract while not causing constipation which is usually associated with a significant intake of conventional activated carbon.
Patent CA-1146832-A (CA)
Title: Method for high consistency refining of tobacco for film casting
Inventor: PINION DALLAS O
IPC: A24B15/12
Filed: 1980-06-20
Granted: 1983-05-24
Abstract: ABSTRACT            A process for making cast film from all-tobacco material which includes mixing particles of tobacco materials, adjusting the water content of said mixture, refining the tobacco slurry to a CS freeness of about -500 ml to about -900 ml, passing the slurry as necessary  through a colloid mill, diluting the so treated slurry with water and casting the slurry on a non-porous surface.  The cast film is then dried, remoistened and removed.
Patent CA-1140813-A (CA)
Inventor: KINGS DONALD
IPC: G03G13/08
Filed: 1980-08-07
Granted: 1983-02-08
Abstract: The sharpness and contrast of reversed images obtained by pressure-fixation of electrostatically developed copies of negative transparencies is provided by dissipating the electrostatic latent image after the development step but before the pressure-fixing step. The process finds application in microfilm reader/reproduction devices.
Patent CA-1156236-A (CA)
Inventor: ROVNYAK GEORGE C
IPC: C07D409/04
Filed: 1980-10-01
Granted: 1983-11-01
Abstract: ABSTRACT Compounds having the formula and basic salts thereof, have hypotensive activity. In formula I, and throughout the specification, the symbols are as defined below. Rl is hydrogen, alkyl, aryl, arylalkyl or R6-?- wherein R6 is alkyl or aryl; R2 is hydrogen, alkyl or haloalkyl; R3 is hydrogen, alkyl, 2-furanyl, 3-furanyl, 2-thienyl, 3-thienyl, 2-, 3- or 4-pyridyl or any of the above-mentioned heterocyclic groups substituted with one or two halogen or alkyl groups; R4 is hydrogen, alkyl or arylalkyl; R5 is hydrogen or alkyl; and n is 0, 1 or 2.
Patent CA-1127891-A (CA)
Inventor: WILLIAMS ROBERT J
IPC: G02B6/44
Filed: 1980-10-03
Granted: 1982-07-20
Abstract: OPTICAL FIBRE CABLE          Abstract of the Disclosure Optical fibre cable with optical fibres received in recesses of a crush resistant central core, the recesses formed by longitudinally extending ribs lying at an angle to the core axis, and a protective sheath surrounding the core, an inner layer of the sheath comprising metal and being carried upon the ribs.  The metal layer may be corrugated circumferentially and coated with polymeric material. An outer layer of the sheath is an impermeable polymeric material.  The ribs preferably extend along the core at an angle to its axis.
Patent CA-1178922-A (CA)
Title: Method of producing electrolytic manganese dioxide
Inventor: MISAWA MASATOSHI
IPC: C25B1/21
Filed: 1980-12-15
Granted: 1984-12-04
Abstract: ABSTRACT OF THE DISCLOSURE        A method for producing electrolytic manganese dioxide is disclosed, comprising the electrolysis of a slurry of particles of manganese oxides in an aqueous solution of manganese sulfate.  The concentration of the particles of manganese oxides is from 0.01 from 0.4 gram per liter of the solution.
Patent CA-1145377-A (CA)
Inventor: NOTTON JOHN H F
IPC: B23K1/18
Filed: 1981-02-16
Granted: 1983-04-26
Abstract: ABSTRACT     This invention relates to the joining together by brazing or soldering of metal tubing.    In more detail the invention is directed to a coupling for joining together lengths of metal tubing by brazing or soldering, the coupling comprising at least two sockets, each socket having one or more indentations formed in its inner surface with each indentation carrying a deposit comprising a thermoplastic brazing or soldering material.
Patent CA-1137961-A (CA)
Inventor: DOMBRO ROBERT A
IPC: B01J21/06
Filed: 1981-02-17
Granted: 1982-12-21
Abstract: Abstract A method of preparing large pore volume zir-conia-silica catalyst supports, the resulting supports and a method of polymerizing olefins comprising con-tacting an olefin or mixture of olefins with a cata-lyst prepared with these supports.  The supports are prepared by reacting a zirconium compound of the formula M4Zr(C2)4)4?nH2O, where M is an alkali metal or ammonium ion and n equals 0 to 10, with a silicon compound of the type A2SiO3, where A is an alkali metal, in an aqueous solution at a pH equal to at least 11, then adding an acidic solution to a pH of about 5-9 to produce a hydrocogel.  The hydrocogel is then aged and washed free of soluble by-products first with water, then with aqueous ammonium nitrate and again with water.  The water is removed from the washed hydrocogel by azeotropic distillation or by washing with a water miscible solvent, then residual water is removed by chemically reacting this water with a ketal of the formula RC(OR)2R where R is the same or different and is an alkyl group of 1-5 carbon atoms, and then calcining the resulting xero-cogel.
Patent CA-1144261-A (CA)
Inventor: PEEKNA ANDRES
IPC: B65H23/32
Filed: 1981-03-23
Granted: 1983-04-05
Abstract: MAINTENANCE OF CONSTANT WEB CLEARANCE     AT CONTACTLESS TURNING GUIDE     ABSTRACT OF THE DISCLOSURE    In a contactless turning guide controlling a running web through a change of direction, pressure air from a source thereof is delivered into a plenum chamber, from which it issues through slots that direct it between the web and a curved guide surface, to form a pressurized air cushion on which the web floats out of contact with said surface. A damper that controls flow of pressure air into the plenum chamber is automatically so positioned by a servo as to maintain a constant distance between said surface and the web, notwith-standing variations in web tension.   For control of the servo, a supply pressure sensor produces a first output corresponding to above-atmospheric pressure of air in the plenum chamber, a cushion pressure sensor having an inlet at said surface produces a second output corresponding to above-atmospheric pressure in the air cushion, and a ratio-forming device to which said outputs are fed produces a ratio signal corresponding to a ratio relationship between the first and second outputs In a comparison device, the ratio signal is compared with a manually adjustable set-point signal to produce a control output which is so applied to the servo as to maintain said relationship substantially constant.
Patent CA-1175474-A (CA)
Inventor: KINGS DONALD H M
IPC: G03G13/18
Filed: 1981-05-11
Granted: 1984-10-02
Abstract: This invention provides a process of electrographic reproduction onto an arbitary support, whereby an image of a magnetic, monocomponent developing powder is transferred, under the influence of electrical means, onto a support covered with a thin layer of volatile dielectric liquid having a volume resistivity greater than 103 ohm-cm2/cm.
Patent CA-1152698-A (CA)
Inventor: PCOLINSKY MICHAEL P JR
IPC: C08G18/00
Filed: 1981-05-15
Granted: 1983-08-23
Abstract: ABSTRACT OF THE DISCLOSURE          Flexible, resilient, polyurethane foam having improved flame retardancy and intumescent properties is prepared from a reaction mixture comprising a polyester polyol, an organic polyisocyanate, a blowing agent, a surfactant, and a catalyst, the improvement consisting of adding at least one melamine derivative wherein one or more hydrogens have been replaced by a methylol and/or lower alkoxymethyl group, a flame retardant, and hydrated alumina in substantially greater amounts than previously known.  In a preferred embodiment, the hydrated alumina is predispersed in a mixture comprising the melamine derivative, the flame retardant, and a low-viscosity linear polyester polyol.  These intumescent foams cease to burn within 0 - 10 seconds after removal of a torch flame, with little damage to the interior of the foam due to the formation of a heavy char layer.
Patent CA-1142518-A (CA)
Inventor: MARCHI EGIDIO
IPC: A61K31/435
Filed: 1981-05-21
Granted: 1983-03-08
Abstract: NEW IMIDAZO-RIFAMYCIN DERIVATIVES WITH ANTIBACTERIAL UTILITY     Abstract of the disclosure New rifamicyn derivatives of the following general formula               I   wherein:          A may be the structure or the structure        -x- is a chemical bond or nil;         R is hydrogen or acetyl, R1 and R2 independently represent hydrogen, (C1-4) alkyl, benzyloxy, mono- and di-(C1-3)alkylamino- (C1-4)alkyl, (C1-3)-alkoxy- (C1-4)alkyl, hydroxymethyl, hydroxy-(C2-4)-alkyl, nitro or R1 and R2 taken together with two consecutive carbon atoms of the pyridine nucleus form a benzene ring optionally substi-tuted by one or two methyl or ethyl groups; R3 is a hydrogen atom or nil; with the proviso that, when A is A1, -x- is nil and R3 is a hydrogen atom; with the further proviso that, when A is A2, -x- is a chemical bond and R3 is nil.          The compounds possess antibacterial utility.
Patent CA-1164076-A (CA)
Inventor: MILLER WILLIAM R
IPC: B60L50/30
Filed: 1981-06-15
Granted: 1984-03-20
Abstract: An unmanned material handling system for servicing a plurality of vertically spaced levels of a structure is provided. This system includes an unmanned, selfpropelled vehicle driven by an electromechanical device such as an electric motor. The vehicle includes an energy storage device, such as a flywheel, for storing energy and for supplying that energy to the electro-mechanical device. The vehicle can be moved from one level to another within the structure by an elevator. One half of a split transformer is embedded in the floor of the elevator and, when the vehicle is disposed thereover, that half of the split transformer is energized and becomes electromagnetically coupled with a second half of the split transformer which is disposed within the vehicle. This coupling provides electrical energy to drive a motor/generator which, in turn, causes the flywheel to rotate and store energy. When the elevator reaches the desired level, the mechanical energy stored by the rotating flywheel is converted to electrical energy by the motor/generator for transmission to an electro-mech-anical propulsion device thereby propelling the vehicle.
Patent CA-1165962-A (CA)
Inventor: NIELD ERIC
IPC: C08L77/00
Filed: 1981-07-03
Granted: 1984-04-24
Abstract: ABSTRACT OF THE DISCLOSURE    An extruded profiled section characterised in that it has been extruded from a composition comprising a blend of a linear polyamide, a linear polyester containing at least 80% by weight of ethylene terephthalate units and an inorganic fibrous filler wherein the composition contains 5 to 60% by weight of the composition of the filler and the weight ratio of polyamide to polyester is between 1:1 and 49:1, which composition preferably has a melt flow index of not greater than 2 measured according to ASTM-D1238 using a standard die of bore 2.096 mm, length 8 mm and a load of 2.16 kg at a temperature of 285°C.     A preferred composition for preparing the extruded profiled section comprises a blend in which the polyamide contains an excess of terminal amino groups, and preferably at least 20 g equivalents of terminal amino groups per 106 g of polyamide, in excess of the carboxyl groups.
Patent CA-1163058-A (CA)
Inventor: FOODY PATRICK
IPC: A23K10/32
Filed: 1981-07-10
Granted: 1984-03-06
Abstract: ABSTRACT     This invention comprises a method for increasing the accessibility of cellulose in lignocellulosic materials to chemical or biochemical reagents.  The material is steam cooked for a predetermined time, then rapidly depressurized.          A venting sequence is used to remove volatiles from the reactor.          Optimal cooking times for normal and acid catalyzed cooking are disclosed, according to the discovery of a novel set of governing equations, wherein optimum cooking times can be determined as a time integration of reactor pressure.
Patent CA-1148591-A (CA)
Inventor: LINK EDWIN A
IPC: H01H85/30
Filed: 1981-07-10
Granted: 1983-06-21
Abstract: ABSTRACT OF THE DISCLOSURE A blown fuse indicator for an electric fuse having a tubular casing of insulating material, a pair of terminal caps mounted on the ends of the casing to close the ends thereof, a fuse link conductively interconnecting the terminal caps and an arc quenching filler material filling the casing to embed the fuse link, the fuse indicator including an indicator housing supported by one of the end caps, a pin type indicator positioned within the housing and biased outwardly from the housing to pierce a plate provided at the outer end of the indicator housing and a pair of members formed of a non-conductive material and having corresponding openings in the form of holes or notches with a fuseable wire threaded through the openings to prevent relative movement between the members, one of the members being supported by the housing and the other of the members being connected to the indicator, on fusing of the wire the member connected to the indicator being released allowing the indicator to move to the indicating position.