baber/WOPTO huggingface dataset:
Patent CA-1137922-A (CA)
Inventor: LOHRBERG KARL
IPC: B01J25/00
Filed: 1979-07-06
Granted: 1982-12-21
Abstract: ABSTRACT OF THE DISCLOSURE:                The invention is concerned with a process of manu-facturing sheet metal elements or strips having a catalytic surface structure, in which a mixture containing skeleton powder and Raney alloy powder in a ratio of 1:3 to 3:1 is ap-plied to a starting sheet metal element or starting strip and bonded thereto by roll cladding and is subsequently sintered in a reducing atmosphere at temperature above 600°C, and the soluble component of the Raney alloy is dissolved out by a treatment with an alkaline or acid solution.  The process of the invention is characterized in that the mixture is bonded to the sheet metal element or strip by roll cladding and the sheet metal element or strip is cold-formed at the same time with a deformation of 20 to 60% in one forming step.  The coated sheet metal element or strip substrates or any spherical bodies made therefrom serve as electrodes in electrolytic processes, e.g., in the alkaline chloride or water electrolysis, in the production of salts of oxyacide of chlorine, or as a catalyst in chemical oxidation-reduction processes.
Patent CA-1126759-A (CA)
Title: Intermediate in the preparation of  cyclopropanecarboxylate esters and process for  its manufacture
Inventor: SYRIER JOHANNES L M
IPC: C07C67/00
Filed: 1979-07-17
Granted: 1982-06-29
Abstract: ABSTRACT Novel intermediate in the manufacture of pyrethroid insecticides has the following formula   The compound preferably has the same stereochemical form as the cycloprop-ane ring in (+)-3-carene.  The novel intermediate can be prepared by a pro-cess which comprises hydrolysing a 4-acetyl-2-alkoxy-7,7-dimethyl-3-oxa-bicyclo[4.1.0]heptane.  The starting material is preferably derived from (+)-3-carene.
Patent CA-1134057-A (CA)
Inventor: MOORE DAVID L
IPC: H01L23/29
Filed: 1979-09-11
Granted: 1982-10-19
Abstract: 24                46, 705 ABSTRACT OF THE DISCLOSURE     A glass disc shaped thyristor is disclosed.  The thyristor  comprises  a  body  of  semiconductive  material having a  first  emitter region,  a  first base region,  a second base region and a second emitter region therein.  A cathode electrode and a gate electrode are affixed to one major surface J and an anode electrode is affixed to the second major surface of the body of semiconductor material. The cathode electrode is disc-shaped and is concentrically positioned with respect to the annular-shaped gate elec-trode.  A ring-shaped glass member is affixed to a first major surface of the body of semiconductive material and to the edges of the cathode and base electrodes to form a seal protecting a PN junction at the interface of the first emitter and base regions.  An anode electrode is affixed to the  second major surface  of  the body of semiconductive material.  A second annular shaped glass member is affixed to the edge of the body of semiconductive material to form a seal protecting PN junctions formed at the interface of the first and second base regions and at the interface of the second base region with the second emitter region.  The first and second ring-shaped glass members are formed by fusing glass preforms in an atmosphere comprising a prede-46,705 termined mixture of nitrogen and water vapor to cause the glass preforms to soften and fuse to the surfaces of the body of semiconductive material to form a protective seals.
Patent CA-1117933-A (CA)
Inventor: BECKER FLOYD W
IPC: E21B7/02
Filed: 1979-09-14
Granted: 1982-02-09
Abstract: ABSTRACT OF THE DISCLOSURE            A drill rig for drilling a hole in the ground including a mast, having a longitudinal slide means at one face thereof, adapted to be set upright with the slide means facing, and being at a selected spacing from and parallel to the axis of a drill hole to be drilled with the rig; a slide frame mounted upon the mast slide means and lifter-pulldown means in the mast to move the slide frame along the longitud-inal slide means; a lateral shifting means on the slide frame shiftable towards and away from the slide frame in the direc-tion of the drill hole; a drill carrier attached to the shifting means to be shifted to a first position against the slide frame and to a second position outwardly there-from; and a drill mechanism means including a drill pipe means mounted upon the drill carrier to effect drilling by a drill pipe means, with the drill pipe means being aligned with the drill hole axis when the drill carrier is at one of said positions
Patent CA-1151383-A (CA)
Inventor: TESCH GUENTER
IPC: B29C45/00
Filed: 1979-09-26
Granted: 1983-08-09
Abstract: ABSTRACT OF THE DISCLOSURE A plate, and a process of producing a plate, of a synthetic poly-meric plastic compound of adjoining segments comprises a plurality of grooves separating the segments; each groove includes at least one extremely thin base portion interconnecting the adjacent segments.
Patent CA-1090989-A (CA)
Inventor: SMITH JONATHAN
IPC: F27D1/16
Filed: 1979-10-03
Granted: 1980-12-09
Abstract: Abstract of the Disclosure A rotary retort furnace wherein the retort is supported for rotation at only one end outside of the heated furnace shell such that the retort is cantilevered into the shell.  The rotary retort has a charging door mechanism that cooperates with a skip hoist loading mech-anism to provide charges of the parts to be heat treated that are of a uniform size and are introduced into the retort so as to minimize the loss of any controlled at-mosphere.  The skip hoist loading mechanism has a vibrat-ing feed hopper that dispenses a weight controlled charge into a skip hoist bucket which, after receiving the pre-determined charge of parts, is held in a ready position until such time as a cam mechanism controlling the opening and closing of a door on the charge end of the retort causes the door to open and the skip bucket to be moved to a position wherein the parts are dumped into the retort for heat treating.  The internal auger flight for the retort is made by forming a number of toroids from a resilient material, radially cutting each of the toroids and deforming them to form individual flights, and connect-ing one of the split edges resulting from the cutting to the opposite edge of an adjacent flight such that an axially compressed helical subassembly is obtained.  The helical subassembly is then screwed onto a shaft having a number of guide pins axially on the shaft at predetermined spacings thereby both axially extending and radially compressing the helical subassembly.  The shaft and the helical subassembly are inserted into a retort shell and one free end of the subassembly is welded to one end of the retort.  The shaft is then unscrewed from the sub-assembly while at the same time being forced axially into the retort such that the edges of the helical subassembly fit tightly against the inside of the retort.  After the shaft has been removed, the remaining end of the helical subassembly is welded to the end of the retort.
Patent CA-1152642-A (CA)
Title: Apparatus for reading a disc-shaped record  carrier
Inventor: BIERHOFF MARTINUS P M
IPC: G11B7/004
Filed: 1979-10-04
Granted: 1983-08-23
Abstract: ABSTRACT:           An apparatus for reading a disc-shaped record carrier on which per track circumference one picture of a colour television signal is recorded.  The signal being read is converted to a standard PAL colour television signal.  The apparatus comprising a command device which by applying command signals to control means can produce a jumpwise radial change in the scanning position  on the record carrier, so as to enable the scanning sequence of the recorded pictures to be changed.  In order to main-tain a standard PAL colour television signal in the case of a changed scanning sequence, the apparatus comprises a correction device for the chrominance signal.  This correction device is controlled by the command device and comprises a mixing circuit for mixing the chrominance signal with a reference signal of twice the chrominance subcarrier frequency during time intervals prescribed by the command device, and phase correction means for intro-ducing a phase shift of 0°, 90°, 180° or 270° in thechrominance signal in accordance with a pattern defined by the command device.
Patent CA-1130361-A (CA)
Title: High pressure sodium vapor discharge  lamp with outside starting aid conductor
Inventor: YAMAZAKI HARUO
IPC: H01J61/16
Filed: 1979-10-04
Granted: 1982-08-24
Abstract: ABSTRACT         A high pressure sodium vapor discharge lamp, characterized in that its discharge tube contains xenon gas at a high pressure of e.g. over 150 torr, at least one of the discharge electrodes has a projection conductor which is disposed extending therefrom towards an inside surface of a side wall of a tube envelope of the discharge tube in a manner that the outer end of the projection conductor is disposed in proximity to a side wall of said tube envelope with a predetermined gap inbetween and a starting aid conductor is disposed lengthwise on the outside surface of the side wall, and connected to the other electrode.
Patent CA-1127258-A (CA)
Title: Method and apparatus for enciphering blocks  which succeed short blocks in a key-controlled  block-cipher cryptographic system
Inventor: MATYAS STEPHEN M
IPC: H04L9/06
Filed: 1979-10-31
Granted: 1982-07-06
Abstract: METHOD AND APPARATUS FOR ENCIPHERING BLOCKS WHICH SUCCEED SHORT BLOCKS IN A KEY-CONTROLLED BLOCK-CIPHER CRYPTOGRAPHIC SYSTEM       Abstract A method and apparatus for providing improved error-recovery and cryptographic strength when enciphering blocks which succeed short blocks in a Key-Controlled Block-Cipher Crypto-graphic System with chaining.  Beginning with a pre-existing current chaining value (Y), the system determines whether a current input block (X) of data to be encrypted is a full block or a short block.  Both in the previous system and in proposed improvement, if the block is a full block, the system first combines the chaining value (V) with said full block (X) by a reversible operation such as exclusive-or and then block-enciphers the result of said exclusive-or under control of the user's cryptographic key (K) to produce an output cipher full block (Y); but if the block is a short block, of length Ls then the system first block-enciphers the current chaining value (V) under control of the user's key (K), producing a result W, and then combines the short block (X) 9 in a reversible operation, with the left-most portion, of length Ls, of W to produce an output cipher short block (Y), of length L .  In either case, in the proposed improvement, the system then sets a new chaining value (V') for the system, as being equal to the terminal full block's length of the concatenation of the current chaining-value (V) with the Abstract (Continued) produced block of ciphertext (Y), and causes this new chain-ing value (V') to be the chaining value (V) for the next block. In the case of a short block this gives increased strength to, and speeded error-recovery for, the succeeding block or blocks to be enciphered, over the previous practice, in which the new chaining value was the last-previous output (W) of the block-cipher system.
Patent CA-1123744-A (CA)
Inventor: WATSON CHARLES A
IPC: A61K8/26
Filed: 1979-10-31
Granted: 1982-05-18
Abstract: cJ.718 CA            ABSTRACT OF THE DISCLOSURE     A dentifrice comprising a dental abrasive and an orally-acceptable carrier therefor, wherein the dental abrasive comprises abrasive particles of alpha-alumina monohydrate (boehmite).
Patent CA-1121403-A (CA)
Inventor: BLACK JOHN W
IPC: B60C13/00
Filed: 1979-11-07
Granted: 1982-04-06
Abstract: METAL DISK WHEEL WITH RESILIENT    TREAD AND BEARING SUPPORT               ABSTRACT OF THE DISCLOSURE    A wheel construction having bearing means therein defining an axis of rotation.  The bearing means is housed in an elastomeric sleeve having an elastic compressibility characteristic.  A pair of identically shaped metallic stampings, each having a central cylindrical shell part axially aligned with the other, is provided for housing the bearing structure therein. Each of the stampings has a surface portion intermediate the central cylindrical shell part and the outer peri-phery thereof, which are coextensive with a central plane through the wheel construction perpendicular to the axis of rotation.  The axially aligned cylindrical shell parts engage at least a portion of the elastomeric sleeve of the bearing structure.  An annulus of moldable synthetic resin material is fixedly secured to the peripheral surface of the pair of metallic stampings to hold the cylindrical shell part and the surface portions in axial alignment.  The annulus has an elastically flexible characteristic to thereby permit the pair of stampings to shift radially relative to one another while maintaining said surface portions in sliding engagement with one another.
Patent CA-1141391-A (CA)
Inventor: WACHTER MICHAEL P
IPC: C07C43/178
Filed: 1979-11-19
Granted: 1983-02-15
Abstract: ABSTRACT         A method for synthesis of 2S*,3R*-3-benzyloxy-6,6-ethylenedioxy-2-methyl-2-(5'-hydroxy-4'-methylpnetyl)-oxepane, in intermediate in the sythesis of 2S*,3R*-6-(2*-hydroxyethylidene)-2-methyl-2-(4',8'-dimethyl-5'-oxo-7'-nonenyl)-oxepan-3-ol, one of the active components of the zoapatle plant, is described.  The natural product is useful as a utero-evacuant agent.
Patent CA-1132013-A (CA)
Inventor: MINAMISAWA TSUYOSHI
IPC: C08L63/00
Filed: 1979-11-29
Granted: 1982-09-21
Abstract: ABSTRACT OF THE DISCLOSURE  A strand prepreg which comprises (i) a resin composition comprising 100 parts by weight of thermosetting resin having a softening point of 60°C or less and about 5 to 60 parts by weight of epoxy resin having a number average molecular weight of 5,000 or more and (ii) about 20 to 80% by volume strands of carbon fibers, glass fibers, aromatic polyamide fibers and the like, wherein the strands are impregnated with the resin composition.
Patent CA-1127683-A (CA)
Inventor: CHRISTIANSON ROGER D
IPC: F16L13/14
Filed: 1980-03-07
Granted: 1982-07-13
Abstract: ABSTRACT OF THE DISCLOSURE        This invention provides a fluid fitting for joining two tubular members in a fluid-tight relationship, the fitting including a sleeve having outer end portions with ridge means on the inner surfaces thereof for retaining a tube upon being compressed inwardly around the tube, sealing areas inwardly of the retention areas, the sealing areas including sealing elements on the inner wall of the fitting for forming a fluid-tight engagement with a tubular member received within the fitting upon compression around the tubular member, intermediate areas separating the end portions and the sealing areas, and a central portion of increased wall thickness for providing a greater strength at that area.
Patent CA-1132971-A (CA)
Inventor: PHAAL CORNELIUS
IPC: E21B10/48
Filed: 1980-03-14
Granted: 1982-10-05
Abstract: ABSTRACT         A rotary boring bit for boreholes comprises a body provided on its outer periphery with cutting members (6) consisting of a cutting portion (8) and a supporting portion (7), each cutting member being formed as a segment of a sintered body (1) having a core (3) of cutting material encased by a shell (2).
Patent CA-1121578-A (CA)
Inventor: TYO JOSEPH L GREBER BOULEVARD
IPC: B25B27/04
Filed: 1980-05-12
Granted: 1982-04-13
Abstract: ABSTRACT OF THE DISCLOSURE           A tool for use with a hammer to remove the pin from a door hinge.  The tool comprises an elongated cylindrical stem of circular cross-section, of a diameter sufficiently small to clear the opening at the bottom of the hinge, if such opening is present and, the inner surfaces of the pin receptacle of the hinge.  One end of the stem terminates in a flat surface normal to the longitudinal axis of the stem.  A head to receive the blows from an impact means is secured in offset fashion to the stem at its other end.  The terminal, blow receiving surface of the head is normal to the longitudinal axis of the stem.  The head has a circumscribing edge, and the head is secured near a segment of its edge to the stem in such a manner that a portion of the edge of the head in that area does not overhang the cylindrical surface of the stem.  The portion of the head opposite the stem may be provided with a wedge-like shape, pointing away from the stem, with a central part of the wedge extremity being cut away in somewhat concave fashion to be used to wedge under and lift up the cap of a pin in a door hinge without slipping.  Such tool facilitates removal of door hinge pins and reduces the potential for damage to walls and parts of the door surrounding such hinge, when compared to prior methods and devices for removing such pins.
Patent CA-1141050-A (CA)
Inventor: SPILSBURY ASHTON J
IPC: H03J7/02
Filed: 1980-06-18
Granted: 1983-02-08
Abstract: ABSTRACT         Apparatus for automatically tuning a circuit to a radio frequency signal.  The apparatus has a signal supply for supplying the radio frequency signal to the circuit.  A frequency counter and variable impedance are also connected in the circuit.  A motor changes the setting of the variable impedance to vary its impedance.  The frequency counter is connected to the signal supply means and produces a digital signal representative of the frequency of the radio frequency signal for controlling operation of the motor.  The impedance of the circuit is thus varied in relation to the frequency of the radio frequency signal to provide coarse tuning of the circuit.
Patent CA-1151107-A (CA)
Inventor: KIM SANG H
IPC: G01N27/333
Filed: 1980-07-03
Granted: 1983-08-02
Abstract: Abstract of the Disclosure A reference element for ion-selective membrane electrodes is prepared by coating portions of a layer or silver with a composition comprising a metal salt elec-trolyte, a hydrophilic binder and a member of the group consisting of an oxidizing agent and a silver halide emul-sion.
Patent CA-1147484-A (CA)
Inventor: DAGOSTINO THOMAS P
IPC: G01R13/20
Filed: 1980-07-29
Granted: 1983-05-31
Abstract: Abstract A  digital  oscilloscope  is provided with  a display system which permits intensified time dots to be positionable between  samples on a displayed wave-form. The display system has a time dot memory having at least twice the number of addressable storage loca-tions as a waveform memory. An address counter drives the time dot memory and the waveform memory, with time dot  memory  address  count  including  one  or more lesser  significant bits than the waveform memory ad-dress     count. The resolution of the time measurement provided by one or more time dots may be increased by increasing the time dot memory space and adjusting the corresponding  number  of  address count bits to clock, the memory at the commensurately higher  rate.
Patent CA-1168068-A (CA)
Inventor: BRUGNER FRANK S JR
IPC: H01H1/023
Filed: 1980-08-20
Granted: 1984-05-29
Abstract: ABSTRACT         A material and a process for use in making electrical contacts.  The material is produced in powder form suitable for later processing into electrical contacts by standard metallurgi-cal techniques generally involving compacting the powdered material to form a compact that preferably has a backing of metallic silver, sintering the compact to form the contact having a fine sintered silver backing and forming or cutting the con-tact to make it to the desired shape and size.  The material, and in most general applications the contact made from the material, essentially consists of silver, approximately 15% cadmium oxide by weight, and lithium carbonate at a proportion of about .005 weight percent of lithium, which is approximately equal to .04 molecular percent of lithium carbonate.  The lithium carbonate is added to the powder mixture of silver and cadmium oxide powder mixture as a solution which is thoroughly mixed with the powders to form a slurry to uniformly distribute the lithium carbonate on the surfaces of the powder particles of cadmium oxide and silver by precipitation.  The slurry is then dried and precipitated material is pulverized and formed into a compact without reducing the lithium carbonate prior to sintering of the compact.  Thus by using lithium carbonate instead of lithium nitrate as known in the prior art, the step of reducing the lithium nitrate to lithium oxide prior to sintering the contact material is eliminated without sacrificing the performance of the contact material.
Patent CA-1178740-A (CA)
Inventor: CHANG WEN-HSUAN
IPC: C09D7/00
Filed: 1980-08-22
Granted: 1984-11-27
Abstract: Abstract of the Disclosure Coating compositions capable of liquid application substances consist essentially of curable film forming polyol-containing component and an organic reactive diluent.  The reactive diluent is an organic com-pound containing a primary or secondary hydroxyl group and further charac-terized by having a retained solids value of greater than about 80 percent, a hydroxyl equivalent weight of from about 180 to about 800, and a liquid viscosity of less than about 10 poise at 60°C.  The coating compositions can be formulated to contain little or no volatile organic solvent and/or water.
Patent CA-1148406-A (CA)
Inventor: PERRY RICHARD R
IPC: C11B1/12
Filed: 1980-09-25
Granted: 1983-06-21
Abstract: ABSTRACT         An improved rendering process and system including the use of both a slurry evaporator and cooker.  Renderable material is ground and mixed with oil to form a slurry which is then cooked under vacuum in an evaporator to remove some moisture.  The result-ing partially dewatered slurry is partially deoiled, and the solids residue resulting from deoiling is cooked in a cooker to remove additional moisture.  The hot vapors generated by cooking the ma-terial in the cooker are used in the steam jacket of the evaporator.           Preferably the dewatered solids residue from the cooker is further deoiled.
Patent CA-1145245-A (CA)
Inventor: BAKER EUGENE E
IPC: E21B34/12
Filed: 1980-10-09
Granted: 1983-04-26
Abstract: ABSTRACT    A method of gravel packing multiple zones with a single trip of the operating string into a well without inducing fluid movement across zones, and without dis-turbing the zone being packed in reverse circulation.          Apparatus is disclosed to perform the method, comprising a screen liner assembly surrounding a concentric operat-ing string.  Mechanical force on the operating string is used to change all tool modes of the apparatus.  The operating string is accurately positioned with respect to the screen liner assembly at every zone level and zones may be easily relocated if necessary.  Zones may be packed in any order, and a zone may be repacked, if necessary, during the same trip into the well.
Patent CA-1163071-A (CA)
Inventor: REINEHR ULRICH
IPC: D01D5/04
Filed: 1980-11-26
Granted: 1984-03-06
Abstract: Cross-sectionally stable, hygroscopic fibers and filaments having a core-jacket structure and a process for their production Abstract of the Disclosure Hygroscopic filaments or fibers with a core-jacket structure of hydro-phobic, filament-forming synthetic polymers having a water retention capacity of at least 10 % and having uniform round to oval cross-sectional profiles are ob-tained by a dry-spinning process which comprises addition of a substance to the spinning solvent which a)     has a higher boiling point than the spinning solvent used, b)     is readily miscible with -the spinning solvent and with water, c)     is a non-solvent for the polymer to be spun, and addition of another substance which a)     is soluble in the non-solvent for the polymer to be spun b)     is soluble in the solvent for the polymer, c)     remains dissolved in the non-solvent for the polymer during solidification of the filaments, d)     is insoluble in water, and e)     does not evaporate to any significant extent during the spinning process, to the system in quantities of at least 1 % by weight, based on polymer solids/ spinning solvent/non-solvent carrying out the spinning process in such a way that the non-solvent does not evaporate to any significant extent in the spinning duct and washing out the non-solvent from the solidified filaments.