baber/WOPTO huggingface dataset:
Patent CA-1083654-A (CA)
Inventor: COMPEN JOHANNES M A A
IPC: H01J29/88
Filed: 1977-06-02
Granted: 1980-08-12
Abstract: ABSTRACT:     A picture display tube comprising an internal resistive layer to restrict the peak current which at the operating potential of the tube is associated with an electrical flash-over possibly occurring therein.          The effective part of the resistive layer extends in the neck and over the transition from neck to cone of the envelope of the tube. The resistive layer represents a static resistance value of at most 104 Ohm and a dynamic resistance value of at least 300 Ohm.
Patent CA-1086471-A (CA)
Inventor: ZINEZI WALDEMAR
IPC: B02C7/12
Filed: 1977-06-14
Granted: 1980-09-30
Abstract: ABSTRACT OF THE DISCLOSURE          The present invention provides a process for the manufacturing of refining discs for vegetable pulp, comprising essentially the preparation, with a model which is exactly the same shape as the disc, but made instead of wood, or other proper material, of a mould in casting sand, in which, after removal of the model, refining blades previously prepared, having the thickness, height, length and hardness required, are, then, inserted in a required position, united by melting, by means of a concentric ring framework or the like, and, finally, the melted metal is poured over the framework, gripping the knives or blades at the same time, as well as, covering entirely the interconnection framework, and afterwards, after cooling the disc obtained, may be taken out of the mould, and subjected to machining for finishing.
Patent CA-1085060-A (CA)
Inventor: SHANNON JOHN M
IPC: H01L29/47
Filed: 1977-08-04
Granted: 1980-09-02
Abstract: ABSTRACT          A semiconductor device having a high-voltage rectify-ing metal-to-semiconductor junction comprising a semiconductor body with a semiconductor layer of one conductivity type adjoin-ing a surface of the body and a metal layer extending in contact with a portion of the surface, this metal layer forming a rect-ifying junction with the layer of one conductivity type.  A low resistance ohmic connection is provided to the layer of the one conductivity type and this layer comprises first and second sub-layers with the first sub-layer extending adjacent a sur-face of the body.  The first sub-layer has a doping different from that of the second sub-layer on which it is present.  A plurality of isolated discrete regions of opposite conductivity type are present in the vicinity of the boundary between the first and second sub-layers and these regions extend to below the surface portion contacted by the metal layer.
Patent CA-1087971-A (CA)
Inventor: BORKENSTEIN ROBERT F
IPC: G01N31/22
Filed: 1977-09-06
Granted: 1980-10-21
Abstract: ABSTRACT     An alcohol retainer cartridge and method for using same are disclosed herein comprising calcium sulfate as an adsorbent for alcohol.  The cartridge includes calcium sulfate contained with-in a tube between pieces of filter paper.  At one end of the tube is a disc having a central aperture smaller than the in-terior of the tube, the disc resting against an inwardly ex-tending lip of the tube.  A spring clip bearing against the interior wall of the tube retains the filter paper at the other end.  A sample of the alcohol in a person's breath is obtained by passing an amount of the person's breath, preferably about 52 milliliters, through the calcium sulfate, preferably in the amount of about .5 grams.  The alcohol is adsorbed by the calcium sulfate and may be subsequently assayed.
Patent CA-1100191-A (CA)
Inventor: MACGREGOR DAVID C
IPC: A61N1/36
Filed: 1977-09-16
Granted: 1981-04-28
Abstract: ABSTRACT OF THE DISCLOSURE        An endocardial pacemaker electrode is constructed of electroconductive metal inert to blood and consists of a dense rigid metal substrate and a rigid porous metal coating adhered to at least a major portion of the substrate.  The electrode has a regular geometrical shape with a maximum transverse dimension of about 0.5 to 3 mm and minimum longitudinal dimension of at least about 0.25 mm.  The porous coating includes a plurality of metal particles bonded together at their points of contact with each other and with the substrate to form a network of interconnected pores substantially uniformly distributed throughout the coating.  The porous coating has a porosity of about 10 to 50% by volume and a thickness of less than about 500 microns. The metal particles have a particle size selected from -100 +325 mesh, -325 +500 mesh and -500 mesh.  The porous coating permits tissue formation from cellular elements in the blood stream to stabilize its position in the heart and the formation of surface tissue in those areas exposed to flowing blood prevents the formation of blood clots.
Patent CA-1054950-A (CA)
Inventor: BUNNELLE PHILIP R
IPC: B01D19/00
Filed: 1977-09-19
Granted: 1979-05-22
Abstract: Abstract of the Disclosure This invention relates to an intake element for use at the lower end of a liquid-gas separation chamber wherein gas is separated from a liquid-gas mixture admitted into the lower end of the chamber by the intake element. The intake element has intake openings or ports that are circumferentially spaced and slanted upwardly to direct the mixture generally upwardly.
Patent CA-1093301-A (CA)
Inventor: SOUZA ANTHONY J
IPC: A01M23/18
Filed: 1977-09-22
Granted: 1981-01-13
Abstract: ABSTRACT  OF THE DISCLOSURE        A single use disposable animal trap particularly suited for entrapment of rodents and the like. The trap comprises a housing defining an enclosure and having an entrance opening formed therein; a door member pivotally mounted with the enclosure to move between positions allowing closure of -the entrance opening and access through said entrance opening; trigger means pivotally mounted within the enclosure to cam -the door member into a position blocking access through the entrance opening; and means for maintaining the door member in blocking relation to the entrance opening, thereby to prevent the door member from moving to a position allowing access through the entrance opening after the door member has blocked access therethrough wherein the trigger means comprise: a forward cam portion formed of a flat plate-like body member; an inclined plane portion formed of a flat plate-like body member, the portions joining each other at an abtuse angle; and pivot means mounting the trigger means for pivotal movement within the enclosure at the juncture of said portions, -the door member surmounting the forward cam portion, and the inclined plane portion extending upwardly and rearwardly of the enclosure when the trap is in the set position, an animal entering the trap and exerting force by virtue of its weight on -the inclined plane portion causing the trigger means to pivot about the pivot means, the inclined plane portion moving downwardly within the enclosure and the forward cam portion moving upwardly to the cam the door member into blocking relation to the entrance, and wherein the maintaining means comprises a lateral ledge formed on the inner wall of the door member medially thereof, the ledge having a surface forming a shoulder which abuts the forward edge of the forward cam portion to prevent downward movement of the forward cam portion within the enclosure after the door member has blocked access to the entrance opening.
Patent CA-1115771-A (CA)
Inventor: AKAMATSU MASAHIKO
IPC: H02K29/00
Filed: 1977-11-01
Granted: 1982-01-05
Abstract: ABSTRACT OF THE DISCLOSURE         An AC rotary machine apparatus comprises an AC rotary machine having AC windings forming five phases in loop connection having coil pitches more than the electric angle .pi./5, and means for maintaining the superposing angle stable and greater than or equal to .pi./7.
Patent CA-1086979-A (CA)
Inventor: HOLZ ORVILLE H SR
IPC: E01C19/30
Filed: 1977-11-09
Granted: 1980-10-07
Abstract: ABSTRACT          In a surface-working machine, as for troweling fresh concrete, the operator rides on a frame which is carried by surface-working rotors, each having evenly spaced tools or trowels.  The application of tilting forces to the working rotors to cause movement of the total machine forwardly or rearwardly or to either side, or turning, or any combination thereof, is controlled by the operator through a single control stick, with all movements of the control stick corresponding to the machine movement desired.  If, in a troweling machine, there are only two rotors, their trowels intermesh to work overlapping circles, and no gap is left between the working circles when movement is perpendicular to a "biaxial" plane (common to both rotational axes).  This gives maximum width of coverage, and the operator's seat faces in that direction of movement.  Applicator of the required tilting forces to both rotors is achieved while nevertheless providing frame stability by providing for one rotor assembly, only a single pivot disposed to make that assem-bly rigid with the frame except as to tilting the rotor axis in the biaxial plane.  The operator's seat and engine are both ap-proximately centered in the biaxial plane so that no unbalanced forces result from different weights of operators.  The main frame serves to shield the rotors.
Patent CA-1134996-A (CA)
Inventor: BUCKLEY DONALD J
IPC: C08L33/02
Filed: 1977-12-29
Granted: 1982-11-02
Abstract: ABSTRACT OF THE DISCLOSURE           Substantially gel free, high molecular weight, high unsaturation copolymers of isobutylene and cycloconjugated dienes having a number average molecular weight of about 30,000 to about 90,000 and a mole % of unsaturation of about 5 to about 45 are prepared by a polymerization in a homogeneous phase, wherein the catalyst which is a hydrocarbyl aluminum dihalide or aluminum halide type catalyst dissolved in an aliphatic type solvent is added to a mixture of the isobutylene, cyclo-conjugated diene, and an aliphatic cosolvent and the polymerization reaction is carried out at a temperature of about -80 to about -110°C.
Patent CA-1084810-A (CA)
Inventor: KNAPP KENNETH K
IPC: F16H61/433
Filed: 1978-01-10
Granted: 1980-09-02
Abstract: APPLICATION OF:  Kenneth K. Knapp FOR:  HYDRAULIC CONTROLLER                              A B S T R A C T         An electro-hydraulic control for a hydrostatic trans-mission to control a number of functions of the transmission or the pump or motor of the transmission.  The transmission includes a variable displacement pump driving a fixed displacement motor along with the appropriate standard valving for control of the displacement of the pump and the high and low pressure conduits communicating hydraulic fluid between the pump and the motor.  An electro-hydraulic control valve is supplied to port a varying pressure of fluid to the standard controller used to vary the displacement of the pump.  The control valve includes a spool biased in one direction in a housing to port fluid from the charge pump of the transmission to the standard controller.  A fluid chamber is in communication with the other end of the spool and with the fluid from the charge pump.  A variable orifice communi-cates the fluid chamber with a drain.  The size of the orifice is controlled by an electrical force positioning valve which receives a signal representative of the location of the swashplate of the pump.  Depending upon the pressure of the fluid in the fluid chamber the control valve will directly vary the pressure ported from the charge pump to the standard controller.  A needle roller has one end in contact with the end of the spool communicating with the fluid chamber.  A high pressure signal is provided via a shuttle valve across the high and low pressure conduits of the transmission to the other end of the needle roller.  Accordingly, the control valve is responsive to both the pump displacement and the highest pressure within the transmission thereby making it a torque limiting controller.  Various modifications can be made within the spirit of the invention to control the fluid pressure within the fluid chamber and against the one end of the needle roller to change the function of the control valve.
Patent CA-1136381-A (CA)
Inventor: VOORHOEVE RUDOLF J H
IPC: C07C273/02
Filed: 1978-01-27
Granted: 1982-11-30
Abstract: Abstract of the Disclosure A catalytic process has been found to produce urea or its equivalent NH4NCO, under relatively mild pressure and temperature conditions.  This process entails flowing a gas mixture containing NOx, CO, and a source of hydrogen such as H2 or H2O over a hydrogenation catalyst such as platinum.  Yields of urea above 90 percent based on NOx conversion are obtainable.
Patent CA-1080520-A (CA)
Inventor: ZAWACKI JOSEPH H
IPC: B21K1/10
Filed: 1978-02-02
Granted: 1980-07-01
Abstract: AXLE SPINDLE FORMING APPARATUS AND METHOD                 ABSTRACT OF THE DISCLOSURE          Apparatus and a method disclosed for forming an axle spindle from a hollow axle blank incorporate a hollow punch hav-ing a metallic body with an inner work surface defining a work opening and a mandrel fixed within the work opening projecting toward an open end thereof from a closed end of the opening.          During forming, the punch is moved relative to the axle blank in the direction the mandrel projects so that the mandrel is re-ceived within the hollow axle blank as the work surface of the punch body forms the blank about the mandrel to provide a spin-dle.  Preferably, several punches of this type are utilized to complete the spindle forming process on the axle blank.  Each punch preferably has an elongated annular shape with a round in-ner work surface and a round outer surface on the mandrel so that the formed spindle is of a round shape.  One of the punches which causes outward material movement has an undercut on its mandrel to facilitate punch withdrawal.  The forming is best performed by a hot forging operation on a heated axle blank end and the hollow punch body has a sufficient length so it extends past the heated portion of the blank end before deformation begins.  A pair of co-operable gripper dies include gripping portions for locating the axle blank during the forging and define an elongated opening with a round cross section for slidably receiving and guiding the punch body during the movement that forges the axle spindle.  A lubrication passage in the punch supplies a lubricant between the punch body work surface and the mandrel.
Patent CA-1107215-A (CA)
Inventor: MOLL NORMAN G
IPC: C10G1/08
Filed: 1978-02-27
Granted: 1981-08-18
Abstract: A B S T R A C T     The present invention resides in the field of hydrogenation of hydrocarbonaceous substances, especially coal.                The invention is a process for hydrogenating a hydrocarbonaceous substrate by contacting it as a water-immiscible liquid phase with hydrogen in the presence of a metal-containing hydrogenation catalyst where the catalyst is initially added to the liquid phase as an emulsion of a water solution of a compound of the metal in the liquid phase.                Advantages that are obtained include more con-venient and efficient dispersion and utilization of the catalyst, so that less catalyst is required for optimum results.     18,292-F
Patent CA-1102164-A (CA)
Inventor: LEWIS JOHN H
IPC: G03G15/00
Filed: 1978-05-15
Granted: 1981-06-02
Abstract: ABSTRACT OF THE DISCLOSURE An electrostatic imaging chamber providing a real time visual image.  An imaging chamber with electrophoretic particles in the electrode gap, with the particles being selectively moved to a transparent electrode as a result of the electrostatic charge image formed by incoming radiation. An imaging chamber which can be cyclicly operated at a relatively high repetition rate, typically 10 to 20 images per second, thereby providing real time viewing of the object.  A conductivity control layer at the gap for discharging the electrostatic charge image each cycle after viewing.
Patent CA-1093399-A (CA)
Inventor: MULLER-FEUGA ARNAUD
IPC: A01K61/00
Filed: 1978-05-17
Granted: 1981-01-13
Abstract: Enceinte d'élevage d'animaux marins, notamment de pleine eau, et en particulier de poissons.  Elle comporte une structure gonflable étanche en matière plastique, et, entièrement immergée, est constitué en un film souple, inerte vis-à-vis du milieu marin, qui présente un orifice d'injection, dans la structure, d'eau en surpression par rapport au milieu environnant, un orifice ou fente d'évacuation, et un moyen de raccordement de l'enceinte à un organe immergé de support.  Cette structure présente une forme lenticulaire et est munie d'un dispositif de sustentation constitué de manchons toriques réalisés en matière plastique souple, étanche, inerte vis-à-vis du milieu marin, l'un des manchons toriques étant disposé dans le plan équatorial de l'enceinte et un ou plusieurs autres manchons servant au raccordement de l'enceinte avec l'organe immergé de support, l'ensemble des manchons toriques étant en communication avec un moyen de gonflement en eau sous haute pression.
Patent CA-1128544-A (CA)
Title: Process for preparing ethyl esters of aliphatic  carboxylic acids
Inventor: IZUMI YUSUKE
IPC: C07B61/00
Filed: 1978-09-27
Granted: 1982-07-27
Abstract: Abstract of the Disclosure In a process for producing an ethyl ester of an aliphatic carboxylic acid which comprises reacting ethylene with the aliphatic carboxylic acid in the liquid phase in the presence of an acid catalyst, the improvement wherein a ?eteropolyacid of tungsten or an acidic metal salt thereof is used as the acid catalyst, and the reaction is carried out in the presence of water in an amount of up to 7.5% by weight based on the weight of the aliphatic carboxylic acid.
Patent CA-1107572-A (CA)
Inventor: GASTON WILLIAM D
IPC: B63H23/02
Filed: 1978-10-02
Granted: 1981-08-25
Abstract: ABSTRACT OF THE DISCLOSURE           There is disclosed a motor boat having a pro-pulsion and steering system which includes a propeller mounted on a housing which is supported from the boat transom for rotation about a generally vertical axis to steer the boat, and for reciprocation along such axis to permit the propeller to be raised and lowered between normal operating, retracted and trim positions, and where-in a motor is mounted in the hull and connected to the propeller shaft by a drive shaft extending sealably through a hole in the hull and having joints at its opposite ends to enable the housing to be so moved.
Patent CA-1124912-A (CA)
Title: Cement coloring composition and method  of producing same
Inventor: BOWDEN ALAN P
IPC: C04B20/02
Filed: 1978-11-17
Granted: 1982-06-01
Abstract: CEMENT COLORING COMPOSITION AND    METHOD OF PRODUCING SAME            ABSTRACT OF THE DISCLOSURE      `   Thixotropic compositions for coloring cement or concrete or similar products comprise particulate pigment particles (about 20-80% by weight), at least one stabilizer (about 0.4-15%), a dispersant (about 0.1-3.0%) and water (about 12-77%).  Methods of making these compositions are also explained.
Patent CA-1092278-A (CA)
Inventor: BRUNER LEONARD B
IPC: C08J3/24
Filed: 1979-02-20
Granted: 1980-12-23
Abstract: ABSTRACT OF THE DISCLOSURE   A hydraulic elastomer having a viscosity of 1,000 to 1,000,000 centi-poises at 25°C. is provided herein which is composed of a polydimethylsilox-ane cross-linked by three-carbon bridges, having a relatively high cross-link density of from 0.25 to 0.50 cross-links per 100 silicon atoms, and in which there are from 0.074 to 0.74 free chain ends per 100 silicon atoms, the free ends having an average of from 50 to 100 silicon atoms each, the elastomer being characterized by a Shore A hardness of from 9 to 15, and being further characterized by its ability to absorb energy by flowing under pressure like a fluid. It is made by heating a particularly reacted silicone fluid, containing approximately 0.45 mole percent of methylvinylsiloxane units, with a vinyl-specific peroxide. This elastomer has a high cross-link density and a high proportion of free chain ends. Because of these char-acteristics it crumbles to a powder under high ahear stress, but has the unique property of flowing like a viscous fluid through a narrow orifice. It is useful in hydraulic impact absorbers and other hydraulic systems.
Patent CA-1063930-A (CA)
Inventor: BUNNELLE PHILIP R
IPC: E21C45/00
Filed: 1979-02-27
Granted: 1979-10-09
Abstract: ABSTRACT OF THE DISCLOSURE           Method and apparatus for subterranean slurry drilling and mining of granular ore, such as phosphates, with a combined drilling and mining apparatus. The apparatus includes a tool string having a drilling head and mining head that are selectively interchangeable on its upper end for drilling into one or more ore strata to be mined and thereafter to remo? ore from the strata as a slurry.  The drill string includes a plurality of inner and outer pipe sections connected to a mining nozzle section, to an eductor pump section, and to a drill bit at its lower end.  A drilling/mining liquid is directed through the tool string during both the drilling and mining modes of operation. During drilling, liquid is directed through a foot valve into the rotating bit to wash cuttings to the surface externally of the tool. During mining, the tool string is rotated, the foot valve is closed, and a mining nozzle is opened thereby causing liquid jetting form the mining nozzle to reduce the ore to a slurry.  The slurry is pumped to the surface by liquid passing upwardly through the eductor pump and through the inner conduit.  Without removing the apparatus from the hole, a hydraulic control system is actuated by hydraulic pressure equal to or less than system pressure for shifting the mining nozzle, the eductor nozzle, and the drill bit foot valve between a drilling mode and a mining mode thus enabling several different ore bearing strata to be mined.           In a modified from of the invention a plurality of vertically spaced mining nozzles are provided and each -1a-nozzle is aligned with a different ore strata.  A hydraulic control system is provided for controlling the hydraulic components between their drilling and mining modes, and for opening and closing the mining nozzle independently of each other.  The control system is responsive to pressure equal to or less than the system pressure.                -1b-
Patent CA-1110073-A (CA)
Inventor: HEALY NIGEL A
IPC: C06B47/00
Filed: 1979-04-02
Granted: 1981-10-06
Abstract: ABSTRACT OF THE DISCLOSURE      An explosive composition which is in the form of a "melt-in-fuel" emulsion as defined. The melt comprises ammonium nitrate and is the discontinuous phase, while the fuel forms the continuous phase.  The composition is substantially water-free and includes an emulsifying agent which imparts to it a greasy consistency.  A method of making such an explosive composition.
Patent CA-1119357-A (CA)
Inventor: TERNER LESLIE L
IPC: B23B27/14
Filed: 1979-04-18
Granted: 1982-03-09
Abstract: ABSTRACT OF THE DISCLOSURE    This application discloses a new powder compo-sistion which may be plasma sprayed onto the surface of an article to provide a protective coating therefor. The protective coating may be resistant to heat, wear, and corrosion. The coating may also provide a thermal or radiation barrier.      In particular, the coating composition for arc plasma spraying consists of finely divided silicon carbide mixed with finely divided silicon. This coating composition is applied to a substrate by developing a plasma spray, feeding the coating composition to the surface of the substrate so that the exposed substrate is coated with a coating which consists essentially of beta silicon carbide and silicon.      The new article of manufacture disclosed in this application, is a substrate with a tightly adherent coating thereon consisting essentially of beta silicon either metallic or non-metallic, to which the coating adheres. The coating may provide the substrate with wear resistant characteristics as, for example, if the substrate is to be used for machining metals or as a valve seat in an aluminum engine. The substrate, with the coating thereon, may be used to withstand severe temperatures as, for example, in rocket nozzles and other areas where a substrate would be subjected to extreme temperature.