baber/WOPTO huggingface dataset:
Patent CA-1059199-A (CA)
Inventor: HENDRICKS FERDINAND
IPC: B41J2/12
Filed: 1976-06-11
Granted: 1979-07-24
Abstract: METHOD AND APPARATUS FOR REDUCING       AERODYNAMIC RETARDATION OF DROPLET STREAMS                IN A JET PRINTING SYSTEM     Abstract of the Disclosure A jet printing system which includes an array of N nozzles.  The droplet streams emitted from at least the first and Nth nozzle are continuously guttered, and the droplet streams emitted from the other nozzles are one of selec-tively guttered or directed to a printing medium.  Alternatively, the array may be comprised of N rows and M columns of nozzles.          The droplet streams emitted from at least the first and Nth row, and the first through Mth column are continuously guttered, and the droplet streams emitted from the other nozzles are one of selectively guttered or directed to a printing medium.  In each instance, the air flow created by the continuously guttered droplet streams reduces the aeorodynamic retardation of the other droplet streams, thereby reducing the misregistration of the droplets on the printing medium.  In one embodiment, the guttered droplet streams comprise a non-marking liquid such as water, and the other droplet streams comprise a marking liquid such as ink.
Patent CA-1049318-A (CA)
Inventor: JONES GARY V
IPC: A23F5/22
Filed: 1976-08-31
Granted: 1979-02-27
Abstract: ABSTRACT OF THE DISCLOSURE          Decaffeination of green coffee is achieved by extracting caffeine from either green coffee beans or an aqueous extract of green coffee beans by means of diethyl succinate.
Patent CA-1066458-A (CA)
IPC: C08F2/00
Filed: 1976-09-15
Granted: 1979-11-20
Abstract: A B S T R A C T    A method for reducing the HCl content of a hydro-carbon wash liquid from the de-ashing of an olefin polymer prepared using TiCl3, and an organo-aluminium compound as catalyst, characterized in that, after separation from the polymer, the wash liquid is treated with an epoxy compound in the presence of an alcohol.
Patent CA-1060311-A (CA)
Inventor: HIBBARD GEORGE A
IPC: E21B21/01
Filed: 1976-10-06
Granted: 1979-08-14
Abstract: ABSTRACT OF THE DISCLOSURE         A percussive rock drill and more particularly a percussive rock drill having improved means for passing a flow of flushing fluid therethrough.  The rock drill is powered by a fluid motor including a body member with an elongated chamber defined within the member and having a first portion intermediate second and third portions thereof.  A working member is reciprocable within the first portion.  A port is provided for introducing a flow of pressurized liquid within the second and third portions and a seal is provided for sealing the first portion from the flow of pressurized liquid within the second and third portions.  A charge of gas is maintained within at least a part of the first portion and communicates with the seal at a pressure greater than the pressure of the liquid.          The arrangement is such that in the event of a water tube seal failure the entry of flushing liquid thereinto is guarded against.
Patent CA-1085958-A (CA)
Inventor: PFOST ROBERT F
IPC: G06K7/00
Filed: 1977-02-03
Granted: 1980-09-16
Abstract: ABSTRACT OF THE DISCLOSURE   A card having one or more magnetic strips is used by patrons to actuate laundry and vending machines and the like.  An encoder at a central point is manually adjusted to "print" a selected number of "credit" pulses on the card strip and the card is sold to a patron. The patron inserts the card into a reader mounted on or near laundry machine, vending machine, etc. The reader determines the number of pulses remaining on the strip, returns the card with one pulse erased and energizes a relay which starts the machine. Preferably, the reader displays the number of pulses on the card at time of insertion and those remaining after erasure.
Patent CA-1095169-A (CA)
Inventor: EPPICH HELMUT
IPC: G06K13/06
Filed: 1977-03-01
Granted: 1981-02-03
Abstract: ABSTRACT OF THE DISCLOSURE   A manually operated card reader for reading punched data recorded on a standard sized tabulation card and for reading punched data on an appropriately sized identification badge or card is disclosed. Data is read from the standard sized tabulation card when the card is inserted in a first opening and conveyed through a curved passageway by manually pulling the card from a second opening. Data is read from the identification badge or card when the badge is inserted in the second opening and then withdrawn. In either case, the punched data is detected by an array of optical sources and optical sensors mounted along the opposite walls of the passageway near the second card opening. A pair of rollers, mounted between the first and second card openings turn freely to permit pulling the standard tabulation card from the second opening. In the card is pulled back toward the first opening, the rollers are wedged between the card and an inclined plate to frictionally engage the card and prevent card movement toward the first opening to prevent a second reading of data columns. A portion of the passageway located between the rollers and the optical reading station is configured to abut the end of a badge or card inserted through the second opening to stop such a badge from travelling through the passageway more than a predetermined distance. This badge stop mechanism does not impair the movement of a card through the passageway when the card is inserted through the first opening and pulled from the second opening. The card reader isconstructed with two molded plastic plates that interlock to define the card openings and the passageway. The badge stop mechanism, the mounting arrangement for the rollers and the mounting arrangement for the optical reading apparatus are molded integral portions of the two plates. The optical sources and sensors and the rollers are retained in the molded plastic plates without the use of conventional fasteners such as screws. Structural cooperation between the contour of the curved passageway, the rollers and the badge stop mechanism exert frictional forces on a tabulation card pulled through the passageway such that the operation of the card reader to read the punched data requires a positive manual force.
Patent CA-1091992-A (CA)
Inventor: REUSCHEL KONRAD
IPC: C23C16/52
Filed: 1977-03-04
Granted: 1980-12-23
Abstract: ABSTRACT OF THE DISCLOSURE           The depositing of Si upon a rod-shaped carrier which is heated in a flowing reaction gas adapted to separate Si and deposit it upon the surface of the said carrier, the flow of the said reaction gas being so regulated that the rate of deposition per cm2 of the carrier surface remaining constan?.
Patent CA-1093117-A (CA)
Inventor: GARDENIERS JAN G
IPC: B01F5/02
Filed: 1977-05-05
Granted: 1981-01-06
Abstract: ABSTRACT OF THE DISCLOSURE      A water aeration device as described in which the water-distributing spray tube which delivers the water onto the surface of an aeration tank is provided with a pair of plates extending from the tube to at least the surface of the water. The plates or baffles are positioned on either side of openings in the delivery tube and define a channel having access to ambient air for spraying water onto the surface of and mixing with the water contained in the aeration tank itself.          The plates are preferably flexible and provide for suppression of noise and/or water overspray conditions previously encountered.          In another embodlment provides in tubes concentrically to the openings in the delivery tube and have a diameter in excess of the maximum diameter of the water jets and are extending below the water surface of the tank.
Patent CA-1089477-A (CA)
Title: Benzyl and related esters of 6,11-dihydrodibenz [b, e] oxepin-acetic acids
Inventor: MCFADDEN ARTHUR R
IPC: A61K31/335
Filed: 1977-06-02
Granted: 1980-11-11
Abstract: BENZYL AND RELATED ESTERS OF 6,11-DIHYDRODIBENZ[b,e]OXEPIN-ACETIC ACIDS          ABSTRACT OF THE DISCLOSURE:            Benzyl and related esters of 6.11-dihydrodibenz-[b,e]oxepin-acetic and method for preparing same are described. These compounds are valuable as systemic and topical anti-inflammatory agents.
Patent CA-1111520-A (CA)
Inventor: MCFADYEN ROBERT J
IPC: H03F3/213
Filed: 1977-06-16
Granted: 1981-10-27
Abstract: ABSTRACT OF THE DISCLOSURE Electronic apparatus is disclosed suitable for integrated circuit fabrication and comprising shunt voltage regulation,  The electronic apparatus may be a radio receiver which uses an unregulated current source for its supply voltage.   The power amplifier of the audio amplifier has a pair of conventional large area push-pull output transistors which are connected in shunt with the supply.   In accordance with the invention, shunt voltage regulation of the supply voltage is achieved by sensing a change in the supply voltage using a zener diode for a voltage reference and then altering the idling current in the output transistors in response to changes in current flow through the zener diode   In consequence of increases in idling current, the output stages shift from the class B toward class A operation and shunt regulate the supply voltage.   The zener diode arranged to provide both stabilization of the full supply voltage and the centering voltage of the push-pull output amplifier.
Patent CA-1077453-A (CA)
Inventor: RYBICKI ROBERT C
IPC: B64C27/48
Filed: 1977-08-10
Granted: 1980-05-13
Abstract: IMPROVED ELASTOMERIC BEARING FOR HELICOPTER ROTOR                 ABSTRACT OF THE DISCLOSURE    An elastomeric bearing for a helicopter rotor in which the laminates of the bearing are shaped and positioned so that the center of hydrostatic pressure generated in each elastomer laminate and the cross-sectional center of gravity of each metal laminate are in alignment so that the inte-grated load vectors reacted through the metal and elastomer laminates of the bearing in imparting blade centrifugal loads to the hub therethrough are substantially in align-ment to thereby prevent the creating of eccentric internal moments and hence avoid life reducing bending and hoop stresses in the metal laminates and unnecessarily high hydrostatic pressures in the elastomer laminates.
Patent CA-1119710-A (CA)
Inventor: MUGGLI JUERG
IPC: G02B7/40
Filed: 1977-10-07
Granted: 1982-03-09
Abstract: ABSTRACT OF THE DISCLOSURE         A Sell-type transducer for use in an ultrasonic ranging system for a camera has a hollow base containing a floating backplate having a grooved surface in contact with the non-metallic surface of a metallized plastic diaphragm stretched across the base.  A spring arrangement urges the floating backplate into engagement with the diaphragm to maintain tension thereon in the event long-term plastic flow occurs in the diaphragm.  Improved side lobe suppression is achieved by progressively decreasing the depth of the grooves as the periphery is approached.  Further, for repeatability, the crests of the grooves define a convex surface.
Patent CA-1076419-A (CA)
Inventor: KLEIM KARL-HEINZ
IPC: B61D23/02
Filed: 1977-11-02
Granted: 1980-04-29
Abstract: ABSTRACT OF THE DISCLOSURE Entrance arrangement for an urban or suburban transport vehicle, typically a rail vehicle, having at least one middle step, a pivoted step cover and a pivoted skirting section, and having gear and lever means interposed between a power source and the moving parts, as well as safety means preventing maloperation, with the rotating axes of the moving parts being situated horizon-tally and parallel to the outer contour of the vehicle, characterized in that the skirting section which is arranged to pivot outwardly, carries a tread and in that the cover is arranged to pivot inwardly behind the tread edge of the floor.
Patent CA-1078299-A (CA)
Inventor: CHU TZE Y
IPC: H01L21/208
Filed: 1977-11-08
Granted: 1980-05-27
Abstract: METHOD AND APPARATUS FOR AVOIDING UNDESIRABLE   DEPOS ITS IN CRYSTAL GROWING OPERATIONS            Abstract of the Disclosure In Czochralski crystal growing operations, particularly those involving growth of silicon crystals, projecting formations of silicon monoxide, which sometimes form on the surface of the melt-containing crucible just above the surface of the melt, are avoided by perturbing the formation conditions at the region of probable formation.  Such perturbations may include increasing the temperature of the crucible at the region of probable formation. The increase in temperature may be provided by including an aperture in the housing which surrounds and supports the crucible to enable locally greater radiative heating of the crucible in the region of probable formation.  Other expendients for locally increasing the temperature of the crucible include, without limitation, selective frosting and other techniques for locally changing the emissivity characteristics of the crucible and/or the surrounding material.                             - i -
Patent CA-1053451-A (CA)
Inventor: NIMAN JOSEPH JR
IPC: B26D1/00
Filed: 1977-12-20
Granted: 1979-05-01
Abstract: ABSTRACT OF THE DISCLOSURE   An indexable insert for cutting internal and external grooves in a workpiece is adapted for mounting and securing upon a tool holder having a pocket therein; whose bottom edges define an obtuse angle. The insert comprises an elongated body of rectangular cross section having a flat top surface along one edge of the body and a pair of angular bottom surfaces extending from a central point of the body and inclined toward and extending to said top surface at a corresponding included obtuse angle. These inclined surfaces define a pair of separately usable transverse cutting edges at the opposite ends of said body which is adapted for snug registry within said pocket. Said pocket also defines within the tool holder a back up plate against which the insert bears. The insert, one or more, is held down within said pocket by a clamp which bears across the top edges of said inserts. A cam lock device is also mounted upon said holder to apply lateral pressure to the insert holding it snugly against the back up wall. The preferred angle involved is 140 degrees approximately or in the range of 130 to 150 degrees.
Patent CA-1081871-A (CA)
Inventor: MIZUMACHI WATARU
IPC: G21C9/004
Filed: 1978-02-07
Granted: 1980-07-15
Abstract: PRESSURE SUPPRESSION APPARATUS               OF NUCLEAR POWER PLANT                 ABSTRACT OF THE DISCLOSURE    In pressure suppression apparatus of a nuclear reactor of the type comprising a vessel surrounding a reactor pressure vessel and containing a water pool at the bottom of the vessel, and a steam exhaust pipe having one end immersed and opened in the water pool, there is provided with an exhaust chamber con-nected to the immersed portion of the exhaust pipe and provided with a number of discharge openings.          Accordingly, the rising of the water pool and unstable oscillation due to the discharge of non-condensible gas can be prevented and the discharged coolant such as steam is uniformly condensed in the water pool.
Patent CA-1037452-A (CA)
Inventor: ORR JAMES D
IPC: F16K5/20
Filed: 1978-02-06
Granted: 1978-08-29
Abstract: ABSTRACT OF THE DISCLOSURE           A ball valve consisting of a housing having a spherical flow control ball located therein and a pair of tubular sealing members, one on each side of the flow control valve.  The tubular sealing members having spherical seats seated in the through flow passage of the housing and sealingly engaging the flow control ball.  The tubular sealing members have through passages which have axes inclined towards each other at an obtuse angle.  The flow control ball is urged towards the tubular sealing members in a direction tending to increase the obtuse angle between the axes of the through passages of the sealing members whereby to maintain a sealing pressure between the flow control ball and the tubular sealing members.
Patent CA-1131431-A (CA)
Title: Process for compacting under pressure  plaster-based mixtures
Inventor: DELEUIL MICHEL
IPC: C04B28/14
Filed: 1978-02-08
Granted: 1982-09-14
Abstract: Abstract of the Disclosure It is known to prepare products from plaster using high pressure techniques.  This process involved expensive pressure equipment, and energy consuming drying processes.  The present invention seeks to overcome these drawbacks by providing a process for compacting under lower pressure wet gypsum or gypsum-plaster mixtures characterised in that the invention is performed by means of a plaster in which the Blaine surface is from 2,500 to 7,000 cm2/g, the percentage by weight of plaster in the mixture is from 30% to 99%, and the excess of water relative to the stoichiometric amount for subsequent setting of the mixture is from 0 to 15% of the total weight of the mixture.  The process according to the invention can be used for producing any cast member which can be used as a load-carrying material, in particular tiles, blocks, plates, juxtaposed composites, facade members, casings, floors and load-carrying beams.
Patent CA-1080790-A (CA)
Inventor: SMITH BERNARD
IPC: H01J9/04
Filed: 1978-03-06
Granted: 1980-07-01
Abstract: Abstract of the Disclosure A high current density long life cathode for use in high power microwave tube applications is made by: machine a porous tungsten pellet with copper in its pores to the desired cathode shape to form the emitting surface of the cathode and cleaning the porous pellet ultrasonically in trichlorethylene, then acetone, and then methanol; firing the tungsten pellet at about 1800°C in a reducing atmosphere; etching the tungsten pellet ultra-sonically in a solution of 50 parts of concentrated nitric acid in 50 parts of water; ultrasonically cleaning the tungsten pellet for about five minutes in an aqueous alkaline solution; cleaning the tungsten pellet in hot deionized water and then air drying the tungsten pellet in an oven for five minutes at about 150°C; refiring the tungsten pellet in a reducing atmosphere at about 1800°C; impregnating the porous tungsten pellet with a mixture of BaWO6, Ba2SrWO6 and ZrH2 in a nonreducing, nonoxidizing atmosphere at about 1900°C to 2000°C; and firing the impregnated tungsten pellet in a reducing atmosphere of dry hydrogen at about 1840°C for about two to five minute.
Patent CA-1077831-A (CA)
Inventor: CHAMMAS EDMOND D
IPC: B26F3/00
Filed: 1978-04-17
Granted: 1980-05-20
Abstract: CHEMICAL CUTTING APPARATUS AND METHOD FOR USE IN WELLS                 Abstract A chemical cutting apparatus and method for cutting objects in well bores such as, for example, tubing in the bore of an oil or gas well.  The apparatus is properly positioned relative to the object to be cut by means of a casing collar locator and an igniter is fired, which in turn activates a gas generator.  Pressure from the gas generator axially displaces a slidable piston having one or more wedges pivotally connected thereto.  Movement of the piston both pivots and extends the wedge, thereby bringing the wedge into contact with the object to be cut and anchoring the apparatus relative to the object to be cut.  The pressure generated in the gas generator is com-municated through a passageway in the slidable piston and forces a chemical cutting agent into a chamber containing a reactant. The reaction of the chemical cutting agent and reactant increases the pressure and temperature within the chamber thereby displac-ing along the axis a second slidable piston.  Movement of the second slidable piston exposes radial exhaust orifices thereby allowing the reacting elements in the chamber to escape with great velocity and to contact the object to be cut.
Patent CA-1054890-A (CA)
Inventor: LAX RONALD G
IPC: A61M15/00
Filed: 1978-04-19
Granted: 1979-05-22
Abstract: INFLATION DEVICE ABSTRACT OF THE DISCLOSURE           An inhalation device having means to engage the free end of a powdered medicament-holding capsule as the capsule is pierced to provide outlet ports for the powdered medi-cament held therein.  Such engagement ensures that the capsule is completely seated in the rotary member on which it is supported and thus ensures that the outlet ports are posi-tioned at the desired locations adjacent the shoulder of the capsule.  Additionally, such engagement enables the piercing opera-tion to be conducted in any orientation of the inhalation device.  The rotary member, which supports the capsule during inhalation, is itself supported by a shaft having a polygon shaped base having n sides.  The rotary member has a hollow sleeve which fits over the shaft, the sleeve having a polygon shaped inner surface having at least n + 1 sides.  During inhalation which causes the rotary member to spin about he supporting shaft, contact of the adjacent polygon shaped surfaces with each other positively causes the walls of the capsule to undergo repeated changes of radial acceleration whereby the powdered medicament is dispersed from the capsule.
Patent CA-1098044-A (CA)
Inventor: LEIGHT CHARLES
IPC: A61F11/08
Filed: 1978-05-11
Granted: 1981-03-24
Abstract: The present specification discloses an ear plug of soft, resilient, and generally tubular construction that is easily inserted by the worker after only the bares  minimum of instruction, the plug being such as to comfortably fit in ear canals of different sizes so that generally only a single size ear plug need be provided for all workers.  The body of the plug is of stepped construction so that a good seal between the plug and the ear canal is provided, and the wall thickness is varied to produce a balance of desired resilience and strength.  The flared outer end of the plug aids in the insertion and removal of the plug, and the use of a suitable plastic type material permits the plug to be made at a very low cost.
Patent CA-1131327-A (CA)
Title: Control method and apparatus with reset windup prevention
Inventor: GANAWAY FRANKLIN D
IPC: G05B11/06
Filed: 1978-06-29
Granted: 1982-09-07
Abstract: CONTROL METHOD AND APPARATUS Abstract of the Disclosure In a control method wherein a control signal is generated in responsive to the deviation of a process variable signal from a setpoint signal and the time integral over this deviation, the windup of the respective controller is prevented by automatically modifying this deviation by a signal representative of the difference between the control signal and the process control signal such as to reduce the deviation of the process variable signal from the setpoint signal by an amount represent-ative of the difference mentioned.
Patent CA-1107383-A (CA)
Inventor: WILSON CHARLES R
IPC: B06B1/06
Filed: 1978-07-10
Granted: 1981-08-18
Abstract: 47,060 DOUBLE SERRATED PIEZOELECTRIC TRANSDUCER                  ABSTRACT OF THE DISCLOSURE         A disc of piezoelectric ceramic with a plurality of parallel slots cut into a top surface.  Another plurality of slots is cut into the bottom surface of the disc with the parallel slots on the top being perpendicular to the parallel slots on the bottom.  For one application a shallow keyway slot is cut into the top and/or bottom surface, traversing the already cut slots, to serve as a receptacle for an elec-trode ribbon.
Patent CA-1099740-A (CA)
Inventor: EHRENFREUND JOSEF
IPC: A01N47/34
Filed: 1978-07-26
Granted: 1981-04-21
Abstract: Abstract Novel N-phenyl-N'-benzoylureas of the formula   wherein R1 represents CH2=CH-CH2-,  CHCl=CCl-, CHCl=CH-CH2-, CH2=CCl-CH2-,  CCl2=CH-CH2-,  CHCl=CCl-CH2- or CH=C-CH2-, and R2 represents hydrogen or chlorine; processes for producing these compounds; and also compositions containing these compounds for use in combating pests, particularly for combating insect pests in the fields of plant protection and hygiene.
Patent CA-1088285-A (CA)
Inventor: WOOD LOREN E
IPC: F16K17/16
Filed: 1978-07-27
Granted: 1980-10-28
Abstract: IMPROVED SCORED RUPTURE DISK     MANUFACTURING METHOD       Abstract of the Disclosure The present invention relates to improved methods of manufacturing scored rupture disks whereby a coating of corrosion-resistant material is applied to the disks so that a score pattern is left unprotected thereon and the disks are con-tacted with a corrosive fluid for a period of time sufficient to corrode scores corresponding with the score pattern into the disks.