baber/WOPTO huggingface dataset:
Patent CA-1063185-A (CA)
Inventor: GRUNDY REED H
IPC: H03K7/06
Filed: 1976-02-03
Granted: 1979-09-25
Abstract: A VOLTAGE CONTROLLED OSCILLATOR CIRCUIT                ABSTRACT OF THE DISCLOSURE     This disclosure relates to a transistorized voltage con-trolled oscillator circuit for an automatic train operating system.          The voltage controlled oscillator circuit includes an operational amplifier having a first and a second input terminal and an out-put terminal.  A first resistor is connected between the first input terminal and a reference potential, and a current limiting resistor is connected between the second input terminal and an input signal voltage.  A charging capacitor is connected be-tween one end of the first resistor and the second input terminal.          A series connected diode and capacitor are connected between the other end of the first resistor and the reference potential, and a feedback resistor is connected between the output terminal and the second input terminal.  A solid state output amplifier has an input and an output circuit.  The output terminal of the operational amplifier is coupled to the input circuit of the solid state amplifier, and the output circuit of the solid state amplifier is resistively coupled to the junction of the series connected diode and capacitor.  A series connected diode and re-sistor are connected between the output circuit of the solid state amplifier and the charging capacitor whereby a dead band zone occurs until the input signal voltage on the second input ter-minal reaches a predetermined value for toggling the operational amplifier and for producing output signals having a frequency proportional to the amplitude of the input signal voltage.
Patent CA-1074913-A (CA)
Inventor: SHAWEN HARLEY J
IPC: G06K7/015
Filed: 1976-02-16
Granted: 1980-04-01
Abstract: Title of the Invention READ-WRITE HEAD BACK-UP MEMBER            Abstract of the Disclosure A back-up member is provided wherein a single bracket supports an elongated member at several points therealong, one face of the elongated member serving as a flat surface for a plurality of resilient pads which are positioned to be formed in a curved manner by a spring member which is adjacent slant-edged portions of the bracket and secured at the several points thereof.  The spring member thereby presents a pair of surfaces for applying pressure on record media to maintain such media in close proximity to associated read and write heads.
Patent CA-1040008-A (CA)
Inventor: CALE ROLAND E
IPC: B61D7/00
Filed: 1976-05-04
Granted: 1978-10-10
Abstract: REVERSIBLE FOOT FOR RAILWAY HOPPER       CAR INCLINED BRACES                Abstract of the Disclosure A foot for the lower end of an inclined brace in a railway hopper car is a metal forging arched transversely to fit over a crossridge in the car, to which the foot is fastened. The foot is provided with a central vertical opening extending lengthwise of it for receiving the lower end of a brace inclined at a predetermined angle.  The end wall of that open-ing that will be beside the upper inclined surface of the lower end of the brace is inclined substantially parallel to that surface, but the opposite end wall of the opening is inclined in the opposite direction at a different angle so that it will lie substantially parallel to the upper inclined surface of the lower end of a brace inclined at a different angle than the first-mentioned brace it the foot is reversed to receive such a brace.  Whichever brace is used, its lower end is welded to the foot.
Patent CA-1050599-A (CA)
Inventor: MISHRA ANIL K
IPC: H02K9/02
Filed: 1976-05-11
Granted: 1979-03-13
Abstract: VENTILATION SYSTEM FOR DYNAMOELECTRIC MACHINES                 ABSTRACT OF THE DISCLOSURE         A ventilation system is provided for dynamo-electric machines such as hydro generators having salient pole rotors and in which the rotor and stator have sepa-rate ventilation systems sealed from the air gap,  The stator ventilation system includes radial vent ducts with longitudinal ducts in the stator core extending between adjacent radial vent ducts.  The longitudinal ducts are sealed from the air gap and are disposed in the region of the stator windings, preferably extending through the teeth.          Ventilating air flows radially inward through the vent ducts, longitudinally through the longitudinal ducts from one vent duct to the next, and radially outward to the external circuit where it is circulated through coolers, by means of a blower or otherwise.
Patent CA-1074757-A (CA)
Inventor: DOTY FLOYD F
IPC: B02C7/00
Filed: 1976-05-20
Granted: 1980-04-01
Abstract: ABSTRACT       A  composite frame for a cone crusher and the like is fab-ricated from a number of separate frame members which are cut  or rolled from plate material and secured by welds.  A particular fea-ture of the frame is the manner of connecting the crusher main shaft housing to the outer bowl supporting structure.
Patent CA-1057732-A (CA)
Inventor: DE ZARAUZ YVES
IPC: C08F4/42
Filed: 1976-06-17
Granted: 1979-07-03
Abstract: ABSTRACT OF THE DISCLOSURE:       The present invention relates to a process of polymerizing or copolymerizing conjugated dienes either with each other or with vinyl aromatic compounds having simultaneous-ly a high content of trans-1,3 linkages and a low content of 1,2 or 3,4 linkages, which comprises reacting the monomers in a reaction medium in the presence of an added catalytic composi-tion comprising an organo-lithium and a cocatalyst having one of the two following formulae Me[MR1R2R3R4]2, Me[M' (R1)4] wherein Me represents a metal of Group II A such as baryum, calcium, strontium, magnesium; M represents a metal of Group III A such as boron, aluminium, etc.; M' represents a metal of Group II B of the Mendeleev periodic table of elements, such as zinc; R1, R2, R3 represent an alkyl or aralkyl radical, and R4 represents an alkyl or aralkyl radical, or the group OR5 in which R5 represents an alkyl or aralkyl radical, and wherein the cocatalyst and the organolithium initiator are used in such quantities that the molar ratio gram atom of lithium/gram atom of a metal of Group II A is in the range of from 0.2 to 4.
Patent CA-1051216-A (CA)
Inventor: FISCHER ARTUR
IPC: E21D21/00
Filed: 1976-09-20
Granted: 1979-03-27
Abstract: ABSTRACT OF THE DISCLOSURE              An anchoring member is inserted into an anchoring hole in a support structure and has transverse dimensions smaller than those of the anchoring hole, and is supported with clearance in such anchoring hole by means of a cap member of ring-shaped con-figuration which surrounds the anchoring member at the trailing end thereof and closes the open end of the clearance. The anchoring mem-ber is of a tubular configuration and is closed at its leading end, an aperture communicating the interior of the anchoring member with the clearance. A body of hardenable material is introduced into the clearance through the aperture and by means of a shielding arrange-ment accommodated in the interior of the tubular anchoring member and communicating with the aperture. At least a portion of the ring-shaped cap member is at least translucent so that the introduction of the hardenable material into the clearance can be monitored there-through. A depression, preferably an annular groove, is visible through the translucent portion and has such dimensions that, due to its viscosity, the hardenable material will not be able to penet-rate into the depression until after the pressure in the clearance has exceeded a value indicative of the completion of the clearance-filling profess. A small-sized opening communicates the clearance with the exterior of the cap member and allows air to escape from the clearance during the clearance-filling operation, while preventing the hardenable material from escaping therethrough until the pressure of the hardenable material has reached a predetermined level.
Patent CA-1069073-A (CA)
Inventor: MASUREKAR PRAKASH S
IPC: C12N9/04
Filed: 1976-10-07
Granted: 1980-01-01
Abstract: Abstract of the Disclosure A method for preparing cholesterol oxidase, com-prising the steps of: a)   growing a cholesterol oxidase producing microorganism in a medium comprising a nontoxic concentration of nonionic surfactant to yield extracellular cholesterol oxidase; and b)   separating the extracellular cholesterol oxidase from the medium.      Preferably, cholesterol oxidase is prepared from a growth medium of Nocardia cholesterolicum species NRRL 5767 or 5768 which contains cholesterol, a suitable derivative of cholesterol or a 3-.beta.-hydroxy sterol as a cholesterol oxidase inducer and a nonionic surfactant in a concentration which is not toxic to said bacterium, which does not produce decomposi-tion products in concentrations sufficient to be toxic to said bacterium, and in sufficient concentration to produce extra-cellular enzyme.
Patent CA-1044709-A (CA)
Inventor: SHUTTLE ANTHONY J JR
IPC: E21C41/00
Filed: 1976-11-08
Granted: 1978-12-19
Abstract: ABSTRACT           This invention relates to the recovery of valuable miner-als from deposits thereof in the earth and is particularly di-rected to a method of mining which affords recovery of at least a major portion of a seam of valuable mineral lying relatively near the surface of the earth without seriously involving the destructive effects upon the environment, inherent in surface mining. In practicing the method a relatively small proport-ion of the overburden covering a seam of useful mineral is re-moved, for later replacement, and a proportion of the valuable mineral in the seam much  greater than that underlying the re-moved overburden is recovered by operations conducted in the pit formed by removal of overburden from selected areas, the recovery of these portions of the mineral seam being coven-iently accomplished by what is known as augur mining from spaced pits disposed in predetermined patters relatively to the mineral seam.
Patent CA-1102450-A (CA)
Inventor: LEBRUN JEAN-LOUIS
IPC: G05D1/06
Filed: 1976-11-26
Granted: 1981-06-02
Abstract: PROCESS AND SYSTEM FOR THE RAPID DETECTION OF A WIND GRADIENT                 ABSTRACT OF THE DISCLOSURE A process and system for the rapid detection of a wind gradient or change for an aerodyne, such as an airplane. Such a system provides for, on the one hand, the rapid detection of important or significant wind gradients or changes which can occur during the final phase of approach preceding the landing of the aerodyne and, on the other hand, to inform the pilot or the automatic flight control system of the existence of this wind gradient sufficient early to permit necessary corrective action to be taken.
Patent CA-1094221-A (CA)
Title: Memory type insulating gate field effect semiconductor device
Inventor: SHIMADA TAKASHI
IPC: H01L21/265
Filed: 1977-02-28
Granted: 1981-01-20
Abstract: ABSTRACT OF THE DISCLOSURE In a memory type insulated gate field effect semicon-ductor device including a semiconductor layer of one conductivity type, a source region of the opposite conductivity type formed in the surface of the semiconductor layer, a drain region of the opposite conductivity type formed in the surface of the semi-conductor layer, a gate insulating layer affixed to the surface of the semiconductor layer, and a gate electrode deposited on the surface of the gate insulating layer, the gate insulating layer has a pair of thick gate guarding portions which exit on side of the source and drain regions, and a thin memory portion intermediate between the thick gate guarding portions, and a surface impurity concentration per square centimeter of the semiconductor layer under the thick gate guarding por-tions is different from a surface impurity concentration per square centimeter of the semiconductor layer under the tin memory portion.  The voltage difference between the threshold voltages of the semiconductor device at the memorized state and at the non-memorized state can be increased, and the read-out voltage of the semiconductor device can be reduced.  The circuit design is simplified.
Patent CA-1086821-A (CA)
Inventor: VAN DE PLASSCHE RUDY J
IPC: H03M1/00
Filed: 1977-04-26
Granted: 1980-09-30
Abstract: ABSTRACT:               A precision current distribution arrangement which includes a multiple current source which supplies q approximately identical currents. These currents are separately applied to one of the q input terminals of a coupling circuit with p output terminals. With the aid of for example shift registers these q currents are trans-ferred to the p outputs in a cyclically permuting fashion, in such a way that at each output during each time interval of the cycle always the same number of currents is trans-ferred, so that per cycle each of the input currents is transferred an equal number of times to a specific output terminal. By subjecting the currents at these output terminals to a low-pass filter action a number of currents is obtained whose ratio relative to each other is very accurately defined.
Patent CA-1083211-A (CA)
Inventor: YAHRAUS WILLIAM A
IPC: F16C33/04
Filed: 1977-05-20
Granted: 1980-08-05
Abstract: Abstract of the Disclosure A sleeve bearing of the halfshell type wherein an oil film is disposed between the bearing and journaled member during operation and which bearing improves bearing fatigue resistance.  The thickness of one of the half-shells is increased to thereby reduce the radius of curva-ture thereof and the thickness of the other halfshell is reduced by an equal amount to thereby increase the radius of curvature thereof.  The halfshells are disposed so as to closely surround a journaled member in a manner such that the higher loads generated during bearing cycling are carried by the halfshell having the greater thickness. This structure acts to reduce destructive oil film pressures developed between the bearing and journaled member during that period of bearing cycling when elevated loads are experienced.  In heavy duty sleeve bearing constructions of the trimetal type, the differences in thickness and radius of curvature are achieved through differences in the so called intermediate layers.
Patent CA-1086941-A (CA)
Inventor: HUSE PER
IPC: A01K91/04
Filed: 1977-11-18
Granted: 1980-10-07
Abstract: A B S T R A C T     A device for connecting a snood to a fishing line including a sleeve defining an aperture through which the fish-ing line can pass and having flanges at opposite ends thereof and a substantially cylindrical outer surface extending between the flanges.  A tubular member defines a substantially cylindri-cal aperture whose diameter is substantially equal to that of the substantially cylindrical outer surface, whereby the tubular member can be fitted about the sleeve to rotate with respect thereto, being retained against movement along the sleeve by the flanges.  The tubular member has a radially-projecting por-tion and the device also includes a snood attachment portion for connection to  the snood.  One of these portions is of generally cylindrical form and has two opposed lugs projecting radially therefrom, and the second portion is elastic and defines an opening corresponding to the diameter of the first portion.          The first portion can be inserted into the opening of the second portion and the second portion can be forced over the lugs of the first portion.
Patent CA-1064148-A (CA)
Inventor: GOLDSBOROUGH ROBERT R
IPC: G01S11/00
Filed: 1977-12-15
Granted: 1979-10-09
Abstract: ABSTRACT     The invention disclosed relates to a doppler shift rate detector system able to detect the presence of doppler signals exhibiting small magnitudes of doppler shift rate.  By means of relatively simple ciruitry including a radio frequency amplifier, the system is capable of detecting doppler signals over a relatively wide frequency band.
Patent CA-1106754-A (CA)
Inventor: KIRKPATRICK ROBERT D
IPC: B01D3/22
Filed: 1978-02-13
Granted: 1981-08-11
Abstract: LIQUID-GAS CONTACTING TRAY            WITH HIGH ANGLE INLET SLOTTING               ABSTRACT OF THE INVENTION     A slotted sieve-tray providing a liquid flow path including a divergent flow section adjacent the liquid inlet, with slots which are oriented away from the tray diametral streamline at high angles in the liquid inlet region, so as to overcome fluid maldistribution problems associated with divergent liquid flow on the tray.     S P E C I F I C A T I O N _ _ _ _ _ _ _ _ _ _ _ _ _
Patent CA-1098881-A (CA)
Inventor: DOMAGALA JOSEPH E
IPC: B66B5/28
Filed: 1978-02-20
Granted: 1981-04-07
Abstract: ABSTRACT       A vehicle arrestor comprises a light carriage positioned in the path of a vehicle to be arrested.          Strips of ductile material are secured by at least one end alongside the path.   The carriage carries a set of rollers for each strip.  The strip passes through the sat of rollers along a sinuous path such that when the vehicle drives the carriage along the path, the strip travels through the set of rollers and is reversely bent plastically at each roller with consequent absorption of energy.
Patent CA-1105104-A (CA)
Inventor: BERETTA GERMANO
IPC: H01B7/30
Filed: 1978-03-15
Granted: 1981-07-14
Abstract: ELECTRICAL POWER CABLE WITH   STRANDED INSULATED WIRES     ABSTRACT OF THE DISCLOSURE:  An electric power cable having a Milliken-type conductor comprising at least four sectors, the conductor being paper-insulated and oil filled and each sector comprising metal wires stranded together.  Each wire is covered with a layer of a cross-linked synthetic resin having a thermal classification of 120°C, a CEI resistance to abrasion of at least 50 cycles, a CEI thermal pressure value higher than 170°C and an insulating oil contaminating effect of substantially zero, such resin also being sub-stantially completely volatizable by the heat used for joining cables by welding.  Preferred resins are a polyvinyl-acetal resin, such as a polyvinyl-formal resin, cross-linked with a phenol resin and, optionally, a melamine resin and such with the addition of a blocked isocyanate.
Patent CA-1085919-A (CA)
Inventor: MINAMI SHUNJI
IPC: G05F1/10
Filed: 1978-04-26
Granted: 1980-09-16
Abstract: ABSTRACT OF THE DISCLOSURE: An electronic power control device including two R-S flip-flops, two diodes, an analog memory consisting of a MOS field-effect transistor, a nonpolarized capacitor and an analog switch, and a firing circuit interconnected between the ground and a trapezoidal waveform power source, whereby a power level delivered to a load may be stepped up or down instantaneously or may be maintained constant.  When the load is an incandescent lamp, the latter may be instantaneously turned on or off by a simple "push-on" of a switch.
Patent CA-1054787-A (CA)
Inventor: ZAGANIACZ FREDERICK J
IPC: C08K5/00
Filed: 1978-05-09
Granted: 1979-05-22
Abstract: TRANSPARENT PIGMENTED POLYCARBONATE CONTAINER     ABSTRACT OF THE DISCLOSURE           The present invention pertains to a transparent, pigmented, polycarbonate container which selectively filters out the portion of the visible spectrum of from about 380 to 550 nm.  In a preferred embodiment, the pigmented, polycarbonate bottle is a milk bottle.
Patent CA-1098219-A (CA)
Inventor: NELSON RICHARD S
IPC: C30B29/04
Filed: 1978-05-26
Granted: 1981-03-24
Abstract: ABSTRACT          A method of producing A semiconductor which comprises subjecting a diamond crystal to bombardment with a flux of carbon ions of sufficient energy to penetrate the diamond and cause crystal growth which is at least predominantly internal, the temperature of the crystal being such that the diamond crystal structure is maintained during growth, said bombardment being preceded, succeeded or accompanied by bomdardment with ions of a dopant which gives rise to semiconducting properties in the diamond.
Patent CA-1049826-A (CA)
Inventor: JORDAN REINHARD
IPC: E01C5/06
Filed: 1978-07-11
Granted: 1979-03-06
Abstract: ABSTRACT OF THE DISCLOSURE               A method of paving uses laying units breakable at rupture zones into individual stones and having recesses in opposite sides.  A laying unit is gripped and lifted by a lifting mechanism extending into the recesses and is deposited adjacent an already laid unit with a gap therebetween and with the recesses in adjacent sides of the two units opposed to each other.  After releasing the lifting mechanism, supplementing stones, each having substantially the same size and shape as one or a fraction of one or a multiple of the individual stones are inserted into the opposed recesses.  The use of the lifting mechanism engaged in the recesses enables each unit to be accurately positioned and, if necessary, repositioned before it is released by the mechanism.
Patent CA-1142543-A (CA)
Title: Amide acrylate compounds for use in  radiation-curable coating compositions
Inventor: GRUBER GERALD W
IPC: C07C235/08
Filed: 1978-07-12
Granted: 1983-03-08
Abstract: ABSTRACT OF THE DISCLOSURE   Amide acrylate compounds are disclosed of the general formula:                          wherein X, Y and Z may each independently be H, alkyl, aryl, acrylyloxyalkyl, acrylyloxy aliphatic ester formed by reaction of acrylating material with hydroxyl terminated aliphatic ester-containing intermediate resulting from the reaction of inner ester of hydroxy carboxylic acid and amino group, or acrylyloxy aliphatic ether, and wherein X, Y and Z together have two, three or four acrylyloxy groups.  The compounds are useful as resin components in very fast curing, radiation-sensitive compositions that form mar-resistant protective coatings.
Patent CA-1111969-A (CA)
Inventor: THOMPSON DAVID A
IPC: H01L41/22
Filed: 1978-08-15
Granted: 1981-11-03
Abstract: BISTABLE MAGNETOSTRICTIVE DEVICE     AND METHODS OF MANUFACTURE     Abstract of the Disclosure A device includes a core, such as a wire or cylinder of a solid material such as nonmagnetic metal, coated with a film of a material having a high degree of magnetostriction and a uniaxial helical magnetic anisotropy at an oblique angle to the longitudinal axis of the core.  The device has the characteristic of being magnetically bistable and of providing a large magnetic pulse as it changes to one of its stable states in response to passage of a magnetic field by it.  To achieve a helical magnetic anisotropy, the magnetostrictive film can be applied to a nonmagnetic wire by plating the wire while it is under torsion, twisting a plated wire after plating, or by applying an electric current and a magnetic field to the wire as the film is being plated or annealed.
Patent CA-1109616-A (CA)
Title: Carbon fiber having improved thermal oxidation resistance and process for producing same
Inventor: SAITO KAZUHISA
IPC: D01F11/12
Filed: 1978-08-15
Granted: 1981-09-29
Abstract: ABSTRACT OF THE DISCLOSURE An improved acrylic carbon fiber and a process for producing the same are disclosed, which acrylic carbon fiber has high strength and an improved resistance to thermal oxidation. The acrylic carbon fiber contains at least about 50 ppm of a phosphorus compound, a boron compound or a mixture thereof, and at least about 100 ppm as zinc compound, a calcium compound or a mixture thereof.  The process for producing the acrylic carbon fiber comprises producing an acrylonitrile polymer from a monomer solution containing at least acrylonitrile, spinning the acrylo-nitrile polymer to produce an acrylonitrile fiber, preoxidizing the acrylonitrile fiber to produce a preoxidized fiber and carbon-izing the fiber to produce a carbon fiber, and wherein at least one of a phosphorus compound and a boron compound, and, at least one of a zinc compound and a calcium compound are incorporated into or deposited on to at least one of the monomer solution, the acrylonitrile polymer solution, the acrylonitrile fiber, the preoxidized fiber and the carbon fiber, in at least one step, such that the carbon fiber ultimately contains at least about 50 ppm of a phosphorus component, a boron component or a mixture thereof and at least about 100 ppm of a zinc compound, a calcium component or a mixture thereof.