baber/WOPTO huggingface dataset:
Patent CA-1082799-A (CA)
Inventor: SKRYDSTRUP OLE
IPC: H04N5/268
Filed: 1976-06-29
Granted: 1980-07-29
Abstract: Abstract of the Disclosure This invention relates to a mix/effects switch ar-rangement and a mix/effects switching system including the switch arrangement.  The mix/effects switch arrangement includes five switches each of which has two input terminals, an output terminal and a control terminal. One of the switches is the output switch and a first and second one of the remaining switches are serial-ly arranged to constitute an input to one of the input terminals of the output switch.  The remaining two switches are serially arranged in parallel to constitute the input to the other input terminal of the output switch.  At least the output switch constitutes a soft switch, and preferably, the two input switches also are soft switches.  In the switching system, a source of first background video signal is applied to one input terminal of an input switch, and a source of second background video signal is applied to one input of the other input switch.  The second inputs of the input switches are then connected together and to a source of foreground video signal.  The outputs of the input switches are connected to one input terminal of the second switches in the serial arran-gements, and the second input terminals of the second switches are connected together and to a source of matte video signal.          The control terminals are controlled by chroma key or split screen sources and a title source, and the control terminal of the output switch is controlled by a fader lever and mode selec-tor means.  The control terminals of the first four switches are further controlled by three push button means whose outputs are connected to a logic control circuit so that a selected one or more of the four switches are actuated in dependence on the push buttons pressed and in accordance with a prearranged program.
Patent CA-1077434-A (CA)
Inventor: RAETHER SIEGFRIED
IPC: B41N3/00
Filed: 1976-08-23
Granted: 1980-05-13
Abstract: Process for the Manufacture of Aluminum Supports for Planographic Printing Plates by Electrochemical Roughening of the Plate Surfaces Abstract of the Disclosure This invention relates to an improvement in the process for the manufacture of aluminum supports for planographic printing plates by electrochemical roughening of the surfaces in agitated aqueous electro-lyte solutions, the improvement comprising that the electrolyte used is an aqueous solution of an aluminum salt.
Patent CA-1057341-A (CA)
Inventor: CONNELL JAMES
IPC: B60B7/10
Filed: 1976-09-03
Granted: 1979-06-26
Abstract: COVER RETENTION SYSTEM            ABSTRACT OF THE DISCLOSURE             This invention relates to decorative wheel covers with resilient fastening clips retained between spaced flanges on the inner periphery of the cover for fastening the cover to the outer surface of the wheel. The clip is made from a strap of spring material having a U shaped body portion which forms an anchor between the flanges and an arm portion reversely bent and extending thereover for engaging the inner diverging flange of the wheel.  The body portion and the arm portion have sharp tangs which are forced into the material of the flanges of the cover and wheel to have the plurality of the clips firmly support the cover outwardly over the wheel surface.
Patent CA-1083417-A (CA)
Title: Printing plate clamping assembly
Inventor: FERMI RUDY
IPC: B41F27/12
Filed: 1976-11-09
Granted: 1980-08-12
Abstract: ABSTRACT OF THE DISCLOSURE   Clamping apparatus is provided for holding thin flexible printing plates in position on a press cylinder.  In certain preferred embodiments, shim members are attached to the outer periphery of the press cylinder for accurately radially posi-tioning the printing plates with respect to the surface of the press cylinder.  A clamping assembly is provided separately from and at a spacing from the shim members in a gap formed between facing edge portions of the shim members for releasably clamping one edge of the printing plate while the other edge of the prin-ting plate is engaged over one of the edge portions of the shim member.  The shim members and the clamping assembly are indepen-dently and separately attachable to the press cylinder so that the shim members can remain in position while printing plates are exchanged, as well as during removal and/or adjustment of the clamping assembly.  In order to accommodate reversal of the direction of clamping of the printing plates, a pair of symmet-rically arranged lock bars are hingedly mounted for selective engagement with detent portions of the printing plates.  The detent portions in one set of preferred embodiments for use with very thin plastic plates are formed as apertures engage-able over pin sections of the lock bar.  The detent portions in another set of preferred embodiments are formed as bent back edge portions which engage over a smooth lock bar.  The shim members are provided with symmetrical facing undercut smooth surfaces for anchoring the leading edge of the printing plate, the trailing edge being engaged by one of the respective lock bars.  The trailing edge of the printing plate is provided with a central recess for accommodating insertion of a tool to rotat-ably move the lock bar out of clamping engagement.  The leading edge of the printing plate is provided with centering apertures engageable with a retaining spring clip clamped in position on the press cylinder by a base member of the clamping assembly.
Patent CA-1064058-A (CA)
Inventor: GANDY RICHARD G
IPC: C04B7/02
Filed: 1976-11-16
Granted: 1979-10-09
Abstract: ABSTRACT         A dry cement composition for use in preparing a pumpable slurry capable of setting and developing good compressive strength at low temperatures.    The composition includes Portland cement, gypsum cement, calcium chloride as a freezing point depressant, and a setting time retarding agent.  Also, a pumpable slurry including components of the foregoing dry composition and water for cementing pipe, such as well casing, in well drilled through low temperature earth formations.  Further, a process for cementing such pipe in a well which penetrates a low temperature earth formation involving depositing such slurry in the space between the pipe and the formation, and thereafter allowing the slurry to set.  Still further, a process of preparing the foregoing slurry wherein the freezing point depressant and the setting time retarding agent are dissolved in at least a portion of the water for the slurry prior go mixing the water with Portland cement and gypsum cement to form the slurry.
Patent CA-1045866-A (CA)
Inventor: KARNIS ALKIBIADIS
IPC: D21B1/12
Filed: 1976-12-07
Granted: 1979-01-09
Abstract: IMPROVING THE BONDING PROPERTIES OF       MECHANICAL PULPS               ABSTRACT OF DISCLOSURE      Process of producing a mechanical pulp of improved lint-ing properties by fractionating the mechanical pulp by means of a hydrocyclone into at least two fractions one fraction having an average specific surface less than a predetermined value between 1.2 and 4 m2/g and the second fraction having an average specific surface greater than the first fraction and subjecting the first fraction to mechanical processing thereby to form a processed fraction having an average spe-cific surface at least 2 m2/g larger than the initial average specific surface of said first fraction and recombi-ning said process fraction and said second fraction into a combined pulp.    The invention also relates to a method of determining specific surface distribution of fibres of the mechanical pulp by fractionating the pulp in a hydrocyclone system into a plurality of underflow fractions and a plurality of overflow fractions each of said underflow and overflow fractions containing a different portion of fibres of said sample and analysing each of said underflow fractions or of said overflow fractions or both to determine the specific surface of each of said selected underflow or overflow fractions.
Patent CA-1056315-A (CA)
Inventor: MAYOR HARRY A
IPC: F01D25/20
Filed: 1976-12-22
Granted: 1979-06-12
Abstract: ABSTRACT OF THE DISCLOSURE      A hydraulic fluid supply system includes a single motor driven pump which supplies a dual pressure level output for providing both a high pressure oil output and a low pressure oil output.  In combination with a turbomachine, the dual pressure level output of the oil pump obviates the requirement of pressure reducing valves in the low pressure supply lines and losses associated therewith.  Moreover, since only a portion of the entire oil requirement is raised to the higher pressure level, the pump motor horsepower requirements are reduced to save energy and thereby improve overall system efficiency.  A further improvement is a system of pressure differential valves whereby under certain conditions, high pressure oil flow is converted even though the low pressure oil flow momentarily drops below a preset value.
Patent CA-1046484-A (CA)
Inventor: GLADROW ELROY M
IPC: B01J23/38
Filed: 1977-04-04
Granted: 1979-01-16
Abstract: ABSTRACT OF THE DISCLOSURE A cracking catalyst for promoting the oxidation of carbon monoxide to carbon dioxide during regeneration of the catalyst by the burning of coke therefrom, which comprises a crystalline aluminosilicate zeolite, an inorganic porous oxide matrix material and CO oxidation promoter, such as a Group VIII metal or compound thereof.  The catalyst is preferably prepared by first supporting the CO oxidation promoter on an inorganic porous oxide base, such as alumina or ultra-stable variety of Y-type zeolite, and thereafter embedding the supported CO oxidation promoter and a crystalline aluminosilicate zeolite, such as rare earth metal exchanged X- or Y-type zeolite, in an inorganic porous oxide matrix material, such as silica-alumina or clay.
Patent CA-1059285-A (CA)
Inventor: PEARSON ROBERT J
IPC: E04B1/94
Filed: 1977-05-11
Granted: 1979-07-31
Abstract: FIRE-RESISTANT METAL STUD ABSTRACT OF THE DISCLOSURE       A formed sheet metal stud having a flange on the opposite side of the wall from that which is exposed to a fire, which flange is formed by a double thickness of the sheet metal which is loosely folded, leaving a finite space between the two thicknesses to function as a chimney, providing a cooling effect on portions of the stud adjacent the highest temperatures of the fire. Small holes are formed in the outer face of the loosely folded flange to permit cooler air from the unexposed side of the stud to enter the void within the loosely folded flange, where the air rises and cools the stud, and/or they permit heated air rising within the void to escape.
Patent CA-1092240-A (CA)
Inventor: KOIKE SUSUMU
IPC: G11C16/04
Filed: 1977-06-09
Granted: 1980-12-23
Abstract: SEMICONDUCTOR MEMORY DEVICE          Abstract A new type of nonvolatile static read/write memory cell is constructed with one MOS transistor and one MNOS transistor.  These transistors together with a load resistor are complementarily combined to offer binary states in the lambda-shaped I-V curve for memory operation under normal power supply.  Upon power failure, the MNOS transistor acts as a back-up element for nonvolatility.  By impressing a control pulse on the drain of the MNOS transistor it is changed from the depletion mode to the enhancement mode, thereby storing the last memory contents before the power failure.  The stored nonvolatile memory contents can be easily retrieved.  Thus a small size static random memory is provided.  The new cell is characterized by advantageous features such as small cell size, a simple peripheral circuit, operation with a unipolar power supply and low standby power consumption.
Patent CA-1099022-A (CA)
Inventor: GOSS GARY J
IPC: H03M13/09
Filed: 1977-08-05
Granted: 1981-04-07
Abstract: ABSTRACT    A method and apparatus for assuring the accuracy of data received by any device in a computer system from any other device in the same computer system or from another computer system.  The existing hardware of a computer system is utilized to generate a cyclic redundant check character each time a unit of data is transmitted.  The cyclic redundant check character is concatenated to the right of such data transmitted.  Each time that the particular data is received, the check character and the data with which it is associated, is again manipulated in the same manner as in generating the check character.  If the data received is the same as the data transmitted, the result of such manipulation is zero.
Patent CA-1088635-A (CA)
Inventor: CORMIER DENNY C
IPC: A61B5/02
Filed: 1977-08-15
Granted: 1980-10-28
Abstract: Abstract of the Disclosure A non-invasive method and means for determining beat-by-beat assessments of a pateint's cardiac performance by measuring the "pre-ejection phase" (PEP) and the "left ventricular ejection time" (LVET), the aforemen-tioned phrases also being known as the "systolic time intervals" (STI) of the heart.  The system accomplishes its function through the following method: transduction of the heart sounds into an electrical phonocardiogram (PCG) signal and controlled amplification thereof; extraction of initial cardiac contraction and aortic valvular events by subjecting the PCG to the general inverse-filtering technique known as "deconvolution"; electronic separation of the PEP, LVET and heart pulse intervals from the deconvolved PCG with micro-computer circuitry comprising microprocessor and digital logic assemblies; precise measurement and simultaneous storage of the PEP, LVET, the PEP/LVET ratio, and the heart rate with the use of electonic digital counters, timers, dividers, and buffer memories after every heart beat; and finally effecting digital readout for instantly displaying the systolic time intervals, their respective ratio, and the heart rate, or for storing them for later use.
Patent CA-1078278-A (CA)
Inventor: AOYAMA SYUNICHI
IPC: F02D37/00
Filed: 1977-09-20
Granted: 1980-05-27
Abstract: ABSTRACT OF THE DISCLOSURE    An engine equipped with an electronically controlled fuel injection system is provided with an EGR control system which accurately regulates the EGR rate in accordance with a vacuum signal produced at a venturi formed in the intake passageway of the engine, under low and medium load engine operating conditions. However, under high speed and high load engine operating conditions, a part of intake air is bypassed through a bypass passage con-necting the upstream and downstream sides of the venturi in order to prevent increase of the flow resistance of the intake air.
Patent CA-1080228-A (CA)
Title: Alkoxy-substituted pyrimidinylthionophosphonic acid esters and their use as insecticides and acaricides
Inventor: MAURER FRITZ
IPC: C07F9/6512
Filed: 1977-09-23
Granted: 1980-06-24
Abstract: Abstract of the Disclosure O-Alkyl-O-[2-substituted-6-alkoxy-pyrimidin (4?yl]-thionophosphonic acid esters of the formula                 (I), in which R and R3 each independently is alkyl, R1 is phenyl or alkyl, and R2 is alkyl, alkoxy, alkylthio or dialkylamino which possess arthropodicidal properties.
Patent CA-1106453-A (CA)
Inventor: BREEN NIXON B
IPC: B23K9/167
Filed: 1977-12-21
Granted: 1981-08-04
Abstract: REDUCTION OF ARC BLOW IN MULTI-ELECTRODE WELDING                 Abstract of the Disclosure The specification discloses a method and apparatus for reducing "arc blow" in multi-electrode welding of a metallic workpiece. Arc blow is produced by interaction between the magnetic fields produced by the closely spaced arcs and electrodes, and takes the form of the end arcs being attracted inwardly towards the others.  This reduces the welding efficiency and the maximum welding speed.  The invention reduces or eliminates the arc blow by providing shunts made of mag-netically permeable material close to the arc-producing ends of the electrodes at the two ends of the row of electrodes.          This reduced the concentration of magnetic flux in these regions and reduces the deviation of the end arcs.  The invention can be applied wherever multi-electrode welding is used, but is especially useful when the workpiece is made of aluminum as arc blow is a particular problem with this metal.
Patent CA-1091827-A (CA)
Inventor: GIBBONS JOHN F
IPC: G21C7/08
Filed: 1978-01-25
Granted: 1980-12-16
Abstract: Abstract of the Disclosure A pressurized water nuclear reactor of the type with vertical control rods passing through the core surrounded by control rod guide tubes. A major portion of the water flow is passed directly to the bottom of the core for upward flow therethrough.  A minor portion pressurizes a volume at the top of the vessel and passes downwardly through the control rod guide tubes to Join the major portion of flow at the lower end of the core.
Patent CA-1117827-A (CA)
Inventor: THURSBY GRAHAM J
IPC: C23C10/44
Filed: 1978-01-30
Granted: 1982-02-09
Abstract: A B S T R A C T     Aluminium or silicon is diffused into iron (including silicon-iron) by applying to the iron an aqueous paste containing powdered aluminium/silicon, sodium silicate, and optionally magnesium oxide and colloidal silica, and firing it.
Patent CA-1079313-A (CA)
Inventor: ROSARD DANIEL D
IPC: F16F15/10
Filed: 1978-02-10
Granted: 1980-06-10
Abstract: TORSIONAL OSCILLATION DAMPER                ABSTRACT OF THE DISCLOSURE         A pair of concentric, rotatable shaft members which are assembled together in a shrink fit relationship.          When one of the shafts is subjected to torsional oscilla-tions, the other twists therewith until the frictional forces therebetween which cause simultaneousjrotation of both rotatable shafts is overcome by elastic torque accumu-lated in the other shaft causing relative motion between the two shafts and resulting in energy being dissipated by dynamic fiction thus limiting the amplitude of the torsional oscillations.  To prevent fretting between the adjacent, slippable surfaces, one on each shaft, a coating of non-fretting material is disposed on at least one of the two slippable surfaces,  A thin sleeve of non-fretting material can also be assembled in a shrink fit relationship between the adjacent, slippable surfaces.
Patent CA-1097919-A (CA)
Inventor: BREHMER HANS
IPC: A01G17/00
Filed: 1978-03-15
Granted: 1981-03-24
Abstract: ABSTRACT OF THE DISCLOSURE The present invention provides a fastening device for holding climbing plants on an external wall which device com-prises a tape of sufficient width to hold down strong branches, said tape having a plurality of trapezoidal teeth shaped bulges extending along both sides of said tape and also above the level of one surface of the tape, said teeth having flanks extending at right angles to the longitudinal axis and sides of the tape which flanks are all directed to an end of the tape which has bulges extending on both sides thereof and above said level of said surface of said tape and a central opening dimensioned to allow the other end of the tape to pass therethrough when turned through an angle of up to 90°.
Patent CA-1103882-A (CA)
Inventor: LACOUNT DALE F
IPC: B22D17/22
Filed: 1978-04-06
Granted: 1981-06-30
Abstract: DIE ASSEMBLY               ABSTRACT OF THE DISCLOSURE           A die assembly is comprised of vertically split upright support blocks formed with flat-surfaced recesses, and includes a plurality of rectilinear members formed with flat surfaces abutting the recess surfaces.  The members include flat surfaces located opposite the abutting surfaces and defining a lower die cavity having an open upper end to receive molten metal for squeeze casting. The rectilinear and flat surface construction simplifies the fabrication and repair of the lower die members.  The die assembly includes a guide member positioned above the lower die and formed with a through-passage communicating with the die cavity.  The passage is formed with outwardly divergent upper and lower end sections.  During the squeeze casting operation, an upper die is inserted into the guide member and cooperates with the lower end section to form a narrow cavity communicating with the die cavity.  The narrow cavity acts to contain the initial spit-out of metal and allows it to solidify rapidly, thus forming a seal to prevent further molten metal spit-out from the lower die cavity during the squeeze casting operation.
Patent CA-1134103-A (CA)
Inventor: WILKINSON MAXWELL
IPC: A41B11/00
Filed: 1978-05-09
Granted: 1982-10-26
Abstract: ABSTRACT      A knitted sock having elastic characteristics in the fabric thereof to provide a circumferential tension in the fabric when the sock is on a wearer which progressively increases from the top of the sock to the part of minimum diameter of the wearer's leg so that the sock resists slippage down the wearer's leg.
Patent CA-1095160-A (CA)
Title: Method and means for measuring and identifying up- and down traveling waves in underground formations
Inventor: COWLES CHRISTOPHER S
IPC: B06B1/06
Filed: 1978-05-23
Granted: 1981-02-03
Abstract: ABSTRACT    A method and apparatus for measuring and identifying up- and down-traveling waves wherein both a velocity-sensitive and pressure-sensitive transducer are disposed. at a point below the earth's surface, as for example in a borehole that is refilled. The pressure transducer is designed to provide intimate contact with the formation surrounding the borehole, and in addition, is the electrical equivalent of the velocity transducer.
Patent CA-1094020-A (CA)
Inventor: WILSON WOODROW S
IPC: B65D47/30
Filed: 1978-08-22
Granted: 1981-01-20
Abstract: S P E C I F I C A T I O N            ABSTRACT OF THE DISCLOSURE           It is known to manufacture closure structures so that each of such structures has a cap part including two spaced, aligned bearings and a movable part extending between the bearings and including trunnions fitting within the bearings.  At least one of the parts of such closure structures is formed of a material which is sufficiently resilient so that the trunnions may be snapped into the bearings during the assembly of the closure structure.  Such a closure structure may be improved so as to reduce  damage to one or both of the parts during the manufacture of such a closure structure by shaping the trunnions and the bearings so that they both have shapes of surfaces of revolution which decrease in diameter in accordance with the distance from the portion of the movable part fitting within and between the spaced bearings.  The entrances employed should also decrease in width in a corresponding manner.
Patent CA-1096299-A (CA)
Title: In  situ oil shale retort
Inventor: STUDEBAKER IRVING G
IPC: C10G1/02
Filed: 1978-09-22
Granted: 1981-02-24
Abstract: 1.      BE IT KNOWN THAT IRVING G. STUDEBAKER of 2090 Sequoia, Grand Junction, Colorado 81501, United States of America having made an invention entitled:      "In situ oil shale retort" the following disclosure contains a correct and full description of the invention and of the best mode known to the inventor of taking advantage of the same.      ABSTRACT An in situ oil shale retort is formed in a subterranean formation containing oil shale and having a substantially vertically extending first cleavage plane set and a substantially vertically extending second cleavage plane set intersecting the first set.  The in situ retort is form-ed by excavating a vertical slot-shaped void within the boundaries of the retort site, leaving a remaining portion of unfragmented formation within the retort site which is to be explosively expanded toward the slot.  The slot is so oriented within the formation as to have a pair of major vertical side walls of unfragmented formation sub-stantially aligned with one cleavage plane set, for example that having the lower dispersion.  The slot may also be formed with a pair of minor vertical end walls extending substantially perpendicularly to the major side walls of the slot.  Explosive placed in the remaining formation adjacent to the slot is detonated to fracture formation along cleavage planes in the first and second cleavage plane sets and to expand such remaining formation within the retort site toward the slot, forming a fragmented permeable mass of formation particles containing oil shale within the retort site.