baber/WOPTO huggingface dataset:
Patent CA-1092320-A (CA)
Inventor: VETTER HEINZ
IPC: B29B13/02
Filed: 1976-08-06
Granted: 1980-12-30
Abstract: Abstract of the Disclosure The Specification describes a process for bending monoaxially or biaxially stretched sheets of thermoplastic resin which comprises the steps of:  a)  heating one surface of a part of a monoaxially or biaxially stretched thermoplastic synthetic resin sheet to a temperature above the softening temperature of the said resin whilst the temperature of the opposite surface of the said part of the sheet remains below the softening temperature of the said resin, the said part of the sheet extending across between two opposite edges of the sheet, and, in the case of monoaxially stretched sheets of resin, extending in a direction transverse to the direction in which the sheet has been stretched but not extending the entire distance between opposite edges of the sheet in the direction in which the sheet has been stretched; b) bending the said part of the sheet or allowing the said part of the sheet to bend, bending in the case of monoaxially stretched sheets providing curvature in the direction in which the sheet has been stretched; and c)  cooling the said part of the sheet to a temperature below the softening temperature of the resin.
Patent CA-1065566-A (CA)
Title: Arrangement for tensioning and guiding the belts of a cellular plastic forming machine
Inventor: JOHANSSON JAN-OLOF
IPC: B29B7/00
Filed: 1976-08-13
Granted: 1979-11-06
Abstract: ABSTRACT OF THE DISCLOSURE        An automatic-tensioning arrangement for roller driven belts of a cellular plastic forming machine is described. Sensor means are provided for detecting lateral movement of the belts on the support or drive rollers thereof and for generating a control signal in response thereto. The control signal from the sensor means is applied to a hydraulic tensioning device which displaces the drive rollers longitudinally of the belts to automatically tension the belts in response to detected lateral belt movement.  A hydraulic tensioning device is provided for each end of each drive roller so the respective ends can be moved separately from one another.  Accordingly, by selective movement of the respective ends of the rollers the belts can be guided back to normal desired position in response to a control signal from the respective sensor means.
Patent CA-1093743-A (CA)
Inventor: BRACHTEN GERT
IPC: C08F220/56
Filed: 1976-09-17
Granted: 1981-01-13
Abstract: Abstract of the Disclosure Copolymers of acrylamides derivatives with maleic or fumaric acid ester derivatives, optionally containing a vinyl derivative are described.          The ratio of acrylamide: ester: vinyl is in the range 1: 0.01 to 5: 0 to 10. Preferably the copolymers are prepared in an aqueous medium.  These polymers find use as assistants in avoiding the grey base effect known as 'frosting' encountered when continuously dyeing polyester-cellulose mixed fabrics.
Patent CA-1069703-A (CA)
Title: Procede de fabrication de laitier expanse
Inventor: METZ PAUL
IPC: C04B5/02
Filed: 1976-10-21
Granted: 1980-01-15
Abstract: L'invention concerne un procédé de fabrication de laitier expansé dans lequel intervient une désintégration mécanique d'un courant de laitier pyroplastique à l'aide d'un tambour rotatif.  Le laitier en fusion est d'abord soumis à une expansion libre, comprenant une première phase d'expansion au cours de l'écoulement du courant continu de laitier à travers un chenal incliné dans lequel on injecte de l'eau sous pression par le fond et une deuxième phase d'expansion au cours de la chute sensiblement libre du courant de laitier sur au moins une plaque humidifiée inclinée par rapport à la verticale et de son étalement en nappe sur ladite plaque avec arrosage d'au moins une surface extérieure de la nappe sur toute sa largeur et qu'ensuite les particules de laitier pyroplastiques projetées par le tambour désintégrateur traversent, dans la partie terminale de leur trajectoire, un milleu d'eau pulvérisée activant leur figement.  On obtient ainsi un laitier expansé de grande porosité et de qualité uniforme à partir de laitiers réputés non ou difficilement expandables.
Patent CA-1073406-A (CA)
Inventor: POHTO GERALD R
IPC: C25B9/19
Filed: 1976-11-09
Granted: 1980-03-11
Abstract: ABSTRACT OF THE DISCLOSURE      Disclosed is a bipolar electrode for stacking with ether identical bipolar electrodes to form a filter press electrolytic cell.  The anode and cathode compartments are pans, each pressed from a single sheet of an appropriate metallic material and are assembled in back-to-back spaced relation leaving an air space between the two pans.  The peripheral channels of the pans are filled with a castable rigidizing material to form solid peripheral edges for serving engagement of the bipolar electrode by other identical bipolar electrodes.  These electrodes may be sealingly clamped together in series with diaphragms or membranes sandwiched in between if desired to form a cell structure.
Patent CA-1085463-A (CA)
Inventor: MOLL EDWARD W
IPC: H04B7/14
Filed: 1976-11-16
Granted: 1980-09-09
Abstract: ABSTRACT OF THE DISCLOSURE                ???? V.I. ????? No. 3,?42,350-???? October 15, 1974, reaches symbollic communication system in which subscribers are converted in each other by appropriate assignment of two different transmitting frequencies to two parties, each bring assigned a receiving frequency matching ????'s transmitting frequency.  When third party (in co??caes: case, operator) must communicate with both subscribers, prior art requires operator to have as a minimum two receivers whose outputs are mixed to operator headset and two transmitters fed from operator micro-phone.  One pair of operator transmitter and receiver communicates with one subscriber, the other pair com-municates with other subscriber; but subscribers can not communicate with each other.  This is somewhat inconvenient for operator intervention and, of course, intolerable if a conference connection is required. A conference facility may be provided by cross connecting the output of each receiver to its opposite transmitter via a conference bridge which also includes the operator headset and microphone.  With such an arrangement, in the general case, intelligence from the first party passes up to the relay, down from the relay to the operator position, through the conference bridge, up to the relay from the operator position, and down to the second party.  These are thus two up-and-down "hops" to the relay; these produce a delay which is subjectively very objectionable.  This prior art method, whether of not a conference bridge is employed, also required changing of frequency assignments each time the operator enters the conversation, which incurs some time delay. Present invention teaches provision of second receiver tuned to operating transmitter frequency, at both subscriber positions, the operator having only a single transmitter, but having two receivers tuned to the respective transmitting frequencies originally assigned to the subscribers for communication between them. Thus operator intervention does not interrupt conver-sation between subscribers, and time for necessary setting of receiver and transmitter frequencies is confined to those for operator communication.  The basic principle may be expanded to generalized con-ference calls among any number of parties.
Patent CA-1080575-A (CA)
Inventor: BENZ CLAUDE L
IPC: C11D3/12
Filed: 1976-12-09
Granted: 1980-07-01
Abstract: \                            Abstract of the Disclosure Poorly flowing or caked detergent powders which include synthetic organic detergent, inorganic salt and moisture (with at least some of the moisture hydrating the salt) are reconditioned by mixing therewith a small proportion of hydratable molecular sieve zeolite, preferably of an initial moisture content of less than 3%.  The reconditioned powders are free flowing, non-tacky and non-caking and the compositions resulting, rather than being less effective, have additional water softening and building properties due to the presence of the molecular sieve zeolite.  Preferably, the molecular sieve zeolite employed is anhydrous and of type 4A and the detergent composi-tion is a heavy duty non-phosphate  product.
Patent CA-1065466-A (CA)
Inventor: PATSEY JOHN A
IPC: G01N29/28
Filed: 1977-01-31
Granted: 1979-10-30
Abstract: ABSTRACT OF THE DISCLOSURE         An ultrasonic weld inspection system has an ultrasonic transmitting transducer and an ultrasonic receiving transducer on the same side of the weld.  A beam of ultrasonic energy from the transmitting transducer directed into the weld center impinges upon a flaw and the receiving transducer is aligned to receive only a portion of the ultrasonic energy beam scattered by the flaw while avoiding receiving reflections of the beam off the flaw and off weld contour irregularities.
Patent CA-1106960-A (CA)
Inventor: BOTTOM VIRGIL E
IPC: H03H3/08
Filed: 1977-02-09
Granted: 1981-08-11
Abstract: ABSTRACT OF THE DISCLOSURE:       A method is provided for adjusting the resonant frequency of an aluminum plated quartz resonator so as to reduce the effect of aging.  The method comprises initially forming the aluminum plated resonator so that its frequency is above the nominal frequency, and then reducing the frequency to the nominal value by anodically forming an oxide film with a thickness in excess of 50.ANG. on the aluminum plating.
Patent CA-1094363-A (CA)
Title: Process and device for retaining a prosthetic element  on an osseous part
Inventor: ERLICH-DEGUEMP JEAN-ANTOINE
IPC: A61C8/00
Filed: 1977-02-28
Granted: 1981-01-27
Abstract: ABSTRACT OF THE DISCLOSURE     A prosthetic element such as a dental prosthesis, is retained in position by a magnetic device which is attached to a seating or foundation structure which is permanently fi-xed, preferably by keying, in a cavity in the bone.  The mag-netic element may be releasable from the seating or foundation structure.
Patent CA-1066430-A (CA)
Inventor: JAMES LAWRENCE W
IPC: H01L29/812
Filed: 1977-03-28
Granted: 1979-11-13
Abstract: PATENT APPLICATION of LAWRENCE W. JAMES for HIGH SPEED FET EMPLOYING TERNARY AND QUARTERNARY III-V                           ACTIVE LAYERS                               ABSTRACT      A field effect transistor (FET) preferably employs an epitaxial layer of indium gallium arsenide as its active layer.  On the surface of the active layer, ohmic source and drain contacts are spaced from respectively opposite sides of a Schottky barrier (rectifying) gate electrode.  The active layer is grown over an epitaxial transition layer which is graded from gallium arsenide to indium gallium arsenide and is doped with chromium or oxygen to be semi-insulating.      The transition layer is in turn formed over a bulk, intrinsic layer of gallium arsenide.  High speed operation of the FET is obtainable because the active layer has excellent electron transport characteristics.  Other materials suitable for the active layer are indium arsenide phosphide and indium gallium arsenide phosphide.
Patent CA-1076047-A (CA)
Title: Porous cellulose beads
Inventor: TSAO GEORGE T
IPC: C12N9/12
Filed: 1977-04-21
Granted: 1980-04-22
Abstract: ABSTRACT Porous cellulose beads are prepared by distri-buting droplets of a solvent mixture containing a cellulose derivative into a precipitating solution to form porous beads which are then washed and hydrolyzed to form porous cel-lulose beads.  The porous cellulose beads, which may be cross-linked, if desired, by suitable treatment, are useful carriers to which enzymes can be immobilized.  The beads may also be used for the separation of enzymes, proteins, nucleic acids and the like, or to remove metal ions from dilute mining solutions.
Patent CA-1076520-A (CA)
Inventor: WAGNER OLIVER
IPC: B01D35/06
Filed: 1977-05-10
Granted: 1980-04-29
Abstract: COLOR IMPROVEMENT PROCESS FOR ORGANIC LIQUID           ABSTRACT OF THE DISCLOSURE          A process for the color improvement of a non-petroleum organic liquid (fats, animal and vegetable oils) containing color impurities (e.g. chlorophyll).  The organic liquid is subjected in succession to a refining step using an aqueous reagent, a hydrogenation step wherein the organic liquid in the presence of a finely divided catalyst at elevated temperatures is hydrogenated.  The organic liquid carrying entrained catalyst is mixed with a finely dispersed solid adsorbent adapted to remove color bodies.  Electrofiltration of the mixture of organic liquid, catalyst and solid adsorbent after hydrogenation effects substantially complete removal of the catalyst and solid adsorbent the organic liquid thereby providing a solids-free, color improved organic liquid which is passed to a subsequent utilization.  Adsorbent mixing and electrofiltration steps are conducted in an atmosphere substantially devoid of oxygen-containing gases.
Patent CA-1106031-A (CA)
Inventor: ASANO MASAHARU
IPC: F02D41/34
Filed: 1977-07-12
Granted: 1981-07-28
Abstract: ABSTRACT OF THE DISCLOSURE    In an electronic fuel injection system for an internal combustion engine, a throttle position sensor provides an output pulse with a duration corresponding to the time interval during which throttle is nearly closed.  The output from the throttle position sensor is nullified when the pulse duration is smaller than a predetermined value to prevent fuel cut-off during brief closure of throttle during transmission gear changes.  The output from the throttle position sensor is used to cut off fuel only when the throttle closure time extends beyond the predetermined time interval.
Patent CA-1100679-A (CA)
Inventor: FRITZ ANDRE
IPC: C08F2/46
Filed: 1977-08-02
Granted: 1981-05-05
Abstract: Abstract of the Disclosure Ultraviolet light-curable adhesive compositions are prepared from diacrylate hydantoin compounds, a photoinitiator and a silane.  The adhesives are useful for bonding substrates, one of which is transparent to ultraviolet light.
Patent CA-1093307-A (CA)
Inventor: WATANABE TAKESHI
IPC: F24F9/00
Filed: 1977-08-04
Granted: 1981-01-13
Abstract: N-1-18086m/77.     ABSTRACT OF THE DISCLOSURE    An air flow supplied by a duct 10 adjacent a melt furnace 3 is normally directed downwardly through a plurality of nozzles 12 in the bottom of the duct towards a floor grate 13 or the like communicating with an exhaust duct 14, to thereby form a heat shielding air curtain 11 to protect the operator/ controller.  During the initial start-up period of the filament draw forming operation, however, a pivotal damper plate 15 adjacent the supply duct may be raised to deflect the air flow across the bottom of the orifice plate 4 of the melt furnace 3, to thereby cool the molten glass cones at the orifice exits and increase their viscosity, which serves to stabilize the filament forming conditions and prevent adjacent cones/filaments from converging together.
Patent CA-1060515-A (CA)
Inventor: KOHRIYAMA YOSHIMASA
IPC: B62D55/096
Filed: 1977-08-10
Granted: 1979-08-14
Abstract: Abstract of the Disclosure A track chain has a plurality of links pivotally connected together in an endless train and a plurality of shoes connected to the links.  A noise reduction device for the track chain has a spring connected to the back sides of adjacent shoes and is of a construction sufficient for applying an elastic resistance to pivotal movement of respec-tive pairs of adjoining links.
Patent CA-1100207-A (CA)
Inventor: SCHESTAG RUDOLF
IPC: F16P3/08
Filed: 1977-09-26
Granted: 1981-04-28
Abstract: ABSTRACT OF THE DISCLOSURE           A safety device for use in detecting an obstruction in a power operated door comprises a signaller arranged to detect an obstruction.  The signaller includes a pair of electrodes and the device is arranged so that a quiescent current flows from one electrode to the other.  If the signaller is damaged the current is reduced or interrupted. If the signaller is compressed to indicate an obstruction the current is increased.  Malfunction of the safety device may thus be detected.
Patent CA-1097455-A (CA)
Inventor: BROWN WILLIAM F
IPC: C04B28/26
Filed: 1977-09-27
Granted: 1981-03-17
Abstract: Abstract of the Disclosure A composition which is particularly adapted for coating structural surfaces to provide them with a thermal barrier to protect them from the detrimental effects of fire comprises an aqueous mixture of (a) lithium mica, (b) wollastonite, (c) aluminum trihydrate, (d) nepheline syenite, and (e) soda bicarbonate.  The composition may be diluted with water to facilitate application.  The composition may also contain raw vermiculite, sodium aluminum sulfate, borax, calcium sulfate, sodium silicate and other additives to improve the fireproofing, insulating and/or structural strength properties of the material.
Patent CA-1094714-A (CA)
Title: Plasticizer containing polyvinylbutyral sheets having  a reduced adhesion to glass
Inventor: HERMANN HANS D
IPC: C03C27/12
Filed: 1977-10-13
Granted: 1981-01-27
Abstract: Abstract of the Disclosure Plasticizer containing polyvinylbutryal sheets are known intermediate layers for glass laminates. Generally, the poly-vinylbutyral used for this application contains certain amounts of vinyl alcohol units and vinyl acetate units. In order to adjust an optimum adhesion to glass, certain additives are mixed with the polyvinylbutyral, which additives must not cause dis-coloration of the laminate and deterioration of the transparen-cy. Betains are especially suitable anti-adhesives, and efficient in very small amounts already.
Patent CA-1095984-A (CA)
Inventor: LUONGO MICHAEL C
IPC: F01D17/00
Filed: 1977-10-24
Granted: 1981-02-17
Abstract: 46,318 A SYSTEM TO CONTROL LOW PRESSURE       TURBINE TEMPERATURES     ABSTRACT OF THE DISCLOSURE         An electronic system for operating a nuclear steam turbine power plant including a cycle steam reheater con-troller to control the heat transfer operation in a cycle steam reheater according to the steam and metal temperatures measured in one or more low pressure turbine sections, is disclosed.  The steam and metal temperatures are closed-loop controlled as a function of the low pressure turbine design operational limitations.  The reheater controller controls dual reheaters, each employing one or more heating sections which reheat cycle steam flowing therethrough to one or more low pressure turbine sections with split side entry steam inlet ports.
Patent CA-1038960-A (CA)
Inventor: BROADBENT KENT D
IPC: G11B7/00
Filed: 1977-10-25
Granted: 1978-09-19
Abstract: ABSTRACT OF THE DISCLOSURE   An improved recording formal for a video disc is disclosed in which only one of the video frames of a consecutive plurality of frames is recorded.     The sound corresponding to the recorded video frame and the omitted video frames is multiplexed and written with the recorded frame. On playback, the recorded frame is repeated a sufficient number of times to substitute for the omitted frames and each repeat is accompanied by the sound corresponding to the omitted frames in proper sequential order. A method of achieving this format in a circular or spiral track configuration is disclosed.
Patent CA-1083511-A (CA)
Title: Typewriter selection drive follower block and shuttle  assembly
Inventor: HUGHES FRANK M
IPC: B41J7/52
Filed: 1977-11-17
Granted: 1980-08-12
Abstract: A TYPEWRITER SELECTION DRIVE FOLLOWER BLOCK                    AND SHUTTLE ASSEMBLY            Abstract of the Invention A shuttle is disclosed which carries as part of its assembly at least a pair of follower blocks for providing the motion required to effect selection on a single element typewriter.  The shuttle allows the follower blocks to provide the requisite motion and also allows a non-disen-gaging drive of the shuttle with the controlling driving shaft.
Patent CA-1070744-A (CA)
Inventor: VOITAS EDWARD J
IPC: B22F7/04
Filed: 1978-01-31
Granted: 1980-01-29
Abstract: Abstract of the Disclosure The invention contemplates a drill bushing or similar article, such as a pump seal, which has a hardened body of steel and a thin coating of tungsten carbide distributed throughout a matrix of nickel chrome which provides a metallurgical bond to the steel body and a metallic bond to the particles of tungsten carbide.          The drill bushing or similar article will have the wear character-istic of the solid tungsten carbide article, but would retain the coefficient of expansion characteristic of steel with the steel body eliminating the brittleness experienced in solid tungsten carbide articles. Also, the invention is a method of making such articles which includes metallurgically bonding tungsten carbide within a matrix to the steel blank by treating the combination in a vacuum, hydrogen, salt bath or other heating medium, making a suitable central opening, where required, in the tungsten carbide, heat treating and finishing the piece to the proper dimensions.          A method of making such articles also includes metallurgically bonding tungsten carbide particles within a matrix which is also metallurgically bonded to a steel body, making a suitable opening, where necessary, leaving a thin coating of matrixed tungsten carbide to improve resistance to wear, heat and corrosion and then finishing the piece to the proper dimensions. Additionally, the method may include metallurgically bonding tungsten carbide particles within a matrix bonded to a steel body while under the influence of forces tending to eliminate voids in the completed coating of matrixed tungsten carbide.
Patent CA-1086189-A (CA)
Inventor: WINEBURNER RONALD E
IPC: G05G9/04
Filed: 1978-02-23
Granted: 1980-09-23
Abstract: LEVER MECHANISM                 ABSTRACT OF THE DISCLOSURE      A single-control lever mounted in a pivot assembly is movable in an arc in first and second directions in one plane to impart motion through a cam arrangement to a first push rod and cable assembly so that the first push rod and cable assembly moves equal amounts in the same direction upon movement of the lever in either the first or second direction.  The same single-lever is movable in an arc in third and fourth directions in a second plane normal to the first plane to impart longitudinal motion to a second push rod and cable assembly affixed to the pivot assembly.  A plate member affixed to the bracket supporting the pivot assembly limits travel of the single-control lever to a predetermined path.
Patent CA-1083421-A (CA)
Inventor: PAREJA RAMON
IPC: F16J15/00
Filed: 1978-03-22
Granted: 1980-08-12
Abstract: ABSTRACT OF THE DISCLOSURE A multi-cylinder pump for delivering fluids under high pressure which includes a multi-lobed camshaft having bearing supported yoke elements disposed in an oil-filled crankcase For coupling the camshaft to plural piston elements such that displacement of the plural piston elements occur in a desired phase relationship and improved sealing arrangements disposed between the piston and the cylinders, between the suction inlet port and the high pres-sure outlet port and between the cylinders and the oil-filled crankcase to prevent cross-contamination of the oil lubricant and the fluid being pumped and to prevent any substantial leakage between the high pressure outlet port and low pressure inlet port during the suction and pressure strokes of the pistons.
Patent CA-1073004-A (CA)
Inventor: STEPE VISVALDIS A
IPC: E02F9/28
Filed: 1978-04-20
Granted: 1980-03-04
Abstract: BUCKET ADAPTER WITH LOAD ABSORBING MEANS     Abstract of the Disclosure A loader bucket having a support plate connected to the bucket base, a reversible cutting edge connected to and extending forwardly of the plate, and a tooth-adapter assembly including an adapter having a rearward portion bifurcated into upper and lower legs with a cavity therebetween to receive the support plate and cutting edge, a load-absorbing shoulder extending integrally from the upper leg into the cavity to abut a forward end of the support plate, and a tooth extending from a forward portion of the adapter.