baber/WOPTO huggingface dataset:
Patent CA-1153125-A (CA)
Inventor: LEININGER STEVEN
IPC: G06F3/023
Filed: 1981-07-31
Granted: 1983-08-30
Abstract: COMPUTER            Abstract of the Disclosure The computer system of this invention has, as the heart of the system, a simple processing unit for providing most data processing by the computer system under control of a read-only memory which contains only instructions and other data for the CPU.  The system also includes a random access memory, a keyboard, a video terminal, and a port device in the form of a tape recorder/player.  A master clock initiates timing used throughout the system.  A multi-line data bus interconnects the CPU and the different memories of the system including the keyboard and the video RAM.  Bi-directional communication is possible on the data bus. The addressing of these different memories is by way of an address bus from the CPU, which is a uni-directional bus.  Data to be operated upon is basically stored in the random access memory.  The keyboard is used for inputting data to the CPU and the video terminal is used for displaying data.  Features of the present invention include a special reset scheme for the CPU, a multiplexing scheme for addressing the RAM, and is for simply altering the control to provide capabilities of different capacity memories, alternate display of characters to provide, for example, either a 32-character line or a 64-character line, an improved keyboard selection scheme, and improved video processing means.     1.
Patent CA-1171537-A (CA)
Inventor: SONODA TAKENORI
IPC: G11B20/18
Filed: 1981-08-05
Granted: 1984-07-24
Abstract: ABSTRACT OF THE DISCLOSURE   A PCM digital signal is provided with double-interleaving and error-correction encoding to protect against errors occurring during transmission, which can be carried out by magnetic recording and reproducing.  The PCM signal is processed as error correcting blocks of several data word sequences and an associated error correction word sequence, and the double-interleaved sequences are then transmitted as transmission blocks.  Up to one erroneous word in each error correction block can be corrected by using the error correction word sequence.  Any uncorrectable word can be compensated by substituting a synthetic word interpolated from immediately preceding and following data words known to be correct.  The distance between successive data words is made as great as possible so that a long burst error is unlikely to affect the ability to compensate uncorrectable errors. To achieve this, alternate words of the PCM signal are distributed to odd and even groups of sequences, and the interleaving is carried out by imparting different delay times to the respective sequences such that the greatest delay time imparted to the odd sequences is less than the shortest delay time imparted to the even sequences. The error correction word sequence is provided with a delay time intermediate the greatest delay time of the odd sequences and the shortest delay time of the even sequences.                             -i-
Patent CA-1163187-A (CA)
Title: Safety valve
Inventor: PASCHAL JAMES H JR
IPC: E21B34/08
Filed: 1981-08-31
Granted: 1984-03-06
Abstract: ABSTRACT          A differential pressure operated subsurface safety valve (20).  A latch mechanism, having ball detents (63), holds the safety valve (20) open until the dif-ference in pressure between fluid in chamber (40) within the safety valve (20) and fluid flowing through the safety valve (20) exceeds a preselected value.  The dif-ference in pressure acts upon a piston (37) which is attached to an actuator sleeve (31) causing the actuator sleeve (31) to shift the safety valve (20) from its open to its closed position.  The chamber (40) is charged by and equalized with fluid pressure around the exterior of the safety valve (20).
Patent CA-1166843-A (CA)
Inventor: LIU HAL
IPC: E21B47/022
Filed: 1981-10-15
Granted: 1984-05-08
Abstract: ABSTRACT OF THE DISCLOSURE       An apparatus and method for surveying a borehole, mine shaft or the like to determine its trajectory.  A sensing probe with two spaced sets of accelerometers measures components of the gravity vector along orthogonal axes at successive positions along the borehole.  The two sets of accelerometers are joined by a connector such as a pipe or a cable which is flexible to bend but is torsionally stiff. The angular orientation of the two accelerometer sets relative to each other about the borehole axis is fixed by the connector so that any difference in ori-entation of the two sets is a function of the local trajectory of the borehole.  Two sets of accelerometer output signals representing gravity vector components at positions spaced apart along the axis of the borehole are utilized to derive the borehole inclina-tion at each position as well as the change in borehole azimuth angle between the positions of the accelerometer sets.  The accelerometer signals, together with a signal representing the position of the probe along the length of the borehole, are com-bined to provide a three dimensional representation of the borehole trajectory, relative to a reference point, which may be the termination of the borehole at the surface.
Patent CA-1151968-A (CA)
Inventor: SNYDER WILLIAM R
IPC: C02F5/12
Filed: 1981-11-05
Granted: 1983-08-16
Abstract: Abstract of The Disclosure Method and compositions are disclosed for inhibiting scale formation and dispersing solids particulate matter in aqueous mediums.  The compositions comprise an acrylic acid/lower alkyl hydroxy acrylate copolymer (I) in combination with a water soluble polymeric material (II) having the formula   a     b wherein a or b may be zero or a positive integer, with the proviso that a + b >1; and wherein d is H or .HSO3.  The method comprises administering from about 0.1 - 500 parts (based upon 1 million parts of the aqueous medium treated) of the combined treatment (I and II) to the particular aqueous system for which treatment is desired.
Patent CA-1189128-A (CA)
Inventor: LLOYD WILLIAM A
IPC: G03G15/05
Filed: 1981-11-12
Granted: 1985-06-18
Abstract: ABSTRACT   A capacitive chargiing mechanism is used in electrostatic stylus recorders having opposed writing nibs and counter electrodes to create electrostatic latent images on electrographic film and other dielectrically coated recording media. To capacitively charge the dielectric surface coating of such a recording medium, a writing voltage is first applied to one or more of the stylii or nibs and another writing voltage pulse is later applied to a counter electrode or electrode segment after a predetermined delay period which is selected to allow the nib voltages to stabilize. The charging of the dielectric surface coating of the recording medium to substantially a predetermined image voltage level occurs on the lead edge of the counter electrode writing voltage pulse. To prevent premature discharge of the charge deposited on the dielectric surface coating the electrode writing voltage pulse is terminated before or simultaneously with the nib writing voltage pulse. Capacitive charging enables such recorders to print on electrographic film and other recording media having insulative substrates, accomodates increased printing rates, and reduces the sensitivity of the printing process to variations in the resistivity of the substrate when applied to recording on electrographic paper
Patent CA-1201446-A (CA)
Inventor: MARTEL JACQUES
IPC: C07C35/06
Filed: 1981-12-04
Granted: 1986-03-04
Abstract: Novel cyclopentanols of the formula    <IMAGE>  I  wherein R1 and R2 are identical and are selected from the group consisting of hydrogen and alkyl of 1 to 4 carbon atoms, R3 is selected from the group consisting of -OH, alkoxy of 1 to 8 carbon atoms and acyloxy of an organic carboxylic acid of 1 to 18 carbon atoms, R4 is selected from the group consisting of hydrogen and alkyl of 1 to 8 carbon atoms, R5 and R8 are individually selected from the group consisting of hydrogen, alkyl of 1 to 8 carbon atoms and alkenyl and alkynyl of 2 to 8 carbon atoms and R6 and R7 are individually selected from the group consisting of hydrogen, alkyl of 1 to 8 carbon atoms, alkenyl and alkynyl of 2 to 8 carbon atoms, -CN, -COCH3 and -COOAlK2 and AlK2 is alkyl of 1 to 8 carbon atoms useful as perfumery agents and their preparation and novel intermediates.
Patent CA-1180584-A (CA)
Inventor: SULLIVAN LEROY J
IPC: F41A17/38
Filed: 1981-12-10
Granted: 1985-01-08
Abstract: ABSTRACT DRUM MAGAZINE FOR A GUN A drum magazine for a gun has a circularly cross-sectioned housing (40) with a feed throat (415) extending from the housing for releasing cartridges and concentric sprockets (42, 43, 44) having serrations nesting cartridges.  A torsion spring (46) is arranged to rotatingly drive the sprockets and feed ramps (434, 441, 455, 455', 471, 471') are provided for assisting the cartridges to traverse from the sprockets to the feed throat (415).      In one aspect, a U-shaped pivotal pusher (47) is nested on the innermost sprocket (44) until de-nested by the feed throat ramp to push the last six cartridges to the feed lips (418, 417) terminating the feed throat (415).  A last round stop actuator (48) is provided which travels with pusher (47).      In another aspect of this invention one of the lips (417) is pivotally biassed to act as a one way valve such that in one position cartridges are prevented from being ejected in a direction perpendicular to the housing axis and yet cartridges may be inserted into the housing in a direction perpendicular to the housing axis.      Another aspect of the invention provides a latch (487, 489) between the outer sprocket (42) and the housing (40) to prevent rotation of the outer sprocket in a counter direction to the direction of feeding cartridges out of the magazine until the intermediate sprocket (43) is rotated in said counter direction a predetermined amount.  A feature provides a connector (485) which is connected to the outer sprocket (42) and which passes through the outer sprocket (42) to engage with the cartridges nested in the intermediate sprocket (43) so that by virtue of the connector the sprockets (42, 43) rotate together.  A similar connector (486) is also provided between the intermediate sprocket (43) and the inner sprocket (44).
Patent CA-1200810-A (CA)
Inventor: NARAYAN THIRUMURTI
IPC: C08G18/79
Filed: 1982-01-05
Granted: 1986-02-18
Abstract: POLYISOCYANURATE POLYMERS, DISPERSIONS, AND CELLULAR AND NON-CELLULAR POLYURETHANE PRODUCTS PREPARED THEREFROM                 Abstract of the Disclosure Polyisocyanurate polymers are prepared by the polymerization of organic polyisocyanates in organic solvents employing trimerization catalysts.  After deactiva-tion of the catalysts and removal of the solvents, these polymers may be dispersed in polyols which are employed for the preparation of cellular and non-cellular polyurethane products displaying improved load bearing properties.
Patent CA-1160515-A (CA)
Inventor: SQUILLANTE MICHAEL R
IPC: C03C17/22
Filed: 1982-02-02
Granted: 1984-01-17
Abstract: Abstract of the Disclosure Forming a film by spraying onto a heated substrate an atomized solution containing the appropriate salt of a constituent element of the film and an agent in sufficient amount to change the oxidation state of at least one solute element of the spray solution after contacting the heated substrate. The film thus formed may be used in photovoltaic devices or in the formation of a solar-heat absorbing panel.
Patent CA-1191570-A (CA)
Inventor: GRITTON CHARLES W K
IPC: H03H21/00
Filed: 1982-03-04
Granted: 1985-08-06
Abstract: PARTIAL BAND - WHOLE BAND                 ENERGY DISCRIMINATOR            Abstract of the Disclosure Energy in a received signal is distinguished as being whole band energy or partial band energy by comparing an average value of the received signal to a modified magnitude value of the received signal.  A signal representative of the comparison result is supplied to a filter including hysteresis for generating a signal to control representative of whether whole band or partial band energy is  present.  Hysteresis is provided in generation of the control signal by comparing the output amplitude of the filter to a first threshold value when the control signal is a first state and then comparing the filter output amplitude to a second lower threshold value when the control signal is a second state.  When the modified magnitude value exceeds the average value, the received signal includes whole band energy, otherwise the received signal includes only partial band energy.  In one example, this technique is employed in an echo canceler to enable updating an echo path estimate during intervals that the received signal includes whole band energy and to inhibit updating of the echo estimate being generated when the received signal includes only partial band energy.
Patent CA-1188190-A (CA)
Inventor: CENGEL JOHN A
IPC: C10N40/25
Filed: 1982-03-08
Granted: 1985-06-04
Abstract: ABSTRACT Mild oxidation of polyamine crankcase dispersants passivates basically reacting polyamine dispersants to fluorocarbon compositions used in engines.
Patent CA-1162566-A (CA)
Inventor: YOSHIMURA NORIAKI
IPC: C07C33/025
Filed: 1982-06-28
Granted: 1984-02-21
Abstract: ABSTRACT OF THE DISCLOSURE    There are disclosed a process for producing 7-octen-1-al which comprises isomerizing 2,7-octadien-1-ol in the presence of a catalyst comprising oxides of at least two metals selected from the group consisting of copper, chromium and zinc and processes for producing derivatives of 7-octen-1-al.
Patent CA-1205670-A (CA)
Inventor: MCALLISTER MERLAN E
IPC: A22C13/02
Filed: 1982-06-30
Granted: 1986-06-10
Abstract: HIGH COHERENCY SHIRRED CASINGS     Abstract of the Disclosure A shirred food casing stick with enhanced overall interpleat coherency is produced by imparting a rotational force to the stick as it is shirred, in a direction opposite to the rotational force imparted to the stick by the shirring means.     S P E C I F I C A T I O N
Patent CA-1181928-A (CA)
Inventor: LOWELL PHILIP S
IPC: B01D53/50
Filed: 1982-09-17
Granted: 1985-02-05
Abstract: ABSTRACT     A process For removing sulfur oxides from waste gas is provided. The gas is contacted with d sorbent selected from trona and activated sodium car-bonate and, utilizing an alkaline ammonia liquor so as to reduce the flow rates and loss of alkalinity, the spent sorbent is regenerated with an alka-line earth metal oxide or hydroxide.
Patent CA-1189987-A (CA)
Inventor: MICHAELIS WALFRIED
IPC: G01N9/24
Filed: 1982-09-24
Granted: 1985-07-02
Abstract: ABSTRACT OF THE DISCLOSURE      Method for determining the average density or volume percentage of at least one coarse grained component of a multicomponent mixture by gamma trans-mission analysis, including the steps of irradiating the mixture with gamma radiation from at least one source, detecting the transmitted radiation by means of at least one detector, and evaluating the relation between the transmitted and detected radiation to determine the average density or volume percentage by using a transmission equation applicable to homogeneous mixtures, the evaluation including transforming the values resulting from solving such equation, or a selected term of such equation, with the aid of a cor-rection function which is derived by comparison of corresponding values in the transmission equation applicable to the homogeneous mixtures and in a further transmission equation which is dependent on the particle sizes of the coarse grained component in order to provide a corrected determination relative to that component.
Patent CA-1179472-A (CA)
Inventor: AMMANN ERNST
IPC: E04D13/15
Filed: 1982-10-01
Granted: 1984-12-18
Abstract: ABSTRACT OF THE DISCLOSURE:           An expansion joint unit is made up of two side sections and an expansion joint strip made of a resilient material and bridging the joint with its center portion.  The edge portions of the expansion joint strip are vulcanized to the side sections.  Disposed between the expansion joint strip and the side portions are separating strips defining chambers which are inflatable by way of openings.         According to the method, a pump and/or pressure guage is connected to the openings for supplying compressed air to the closed space and the pressure is observed over a period of time. A drop in pressure is a clear indication of a defective expansion joint element.
Patent CA-1197681-A (CA)
Inventor: NAGATI RASHED N
IPC: F16L39/00
Filed: 1982-10-14
Granted: 1985-12-10
Abstract: METALLURGICAL VESSEL                   ABSTRACT OF THE DISCLOSURE    A metallurgical vessel includes a plurality of tuyeres for respectively delivering process materials to molten metal contained within the vessel.  A first plurality of axial passaged are provided in at least one vessel trunnion pin for conducting fluids to and from the vessel and a second plurality of radial passages are also formed in the trunnion pin and each respectively intersects one of the axial passages.  An adapter sealingly engages the outer end of each radial passage and is retained in position by a common cover plate.  The outer end of each adapter extends through the cover plate and is constructed and arranged for being coupled to one end of a conduit, the other end of which is connected to one of said tuyeres.
Patent CA-1216414-A (CA)
Inventor: KIELMA ERVIN J
IPC: B23B31/26
Filed: 1982-10-21
Granted: 1987-01-13
Abstract: ABSTRACT OF THE DISCLOSURE      A numerically controlled automatic tool changing machining center is provided with a rotary driven spindle concentric within which is a spindle bar that may be reciprocated out from or into the spindle by a hydraulic cylinder.  Located at the forward end of the spindle bar is a tool receiving socket which is operative to releasably engage the shank of a single toolholder or multiple spindle toolhead transferred to the spindle bar from the machine tool storage magazine by a tool transfer arm.  When a large, single toolholder is engaged by the spindle bar, the spindle bar is retracted into the spindle to urge the large single toolholder against the nose of the spindle.  In the case of a multiple spindle toolhead being engaged by the spindle bar, the spindle bar is ratracted into the spindle to urge the multiple spindle toolhead against the spindlehead so that locating pins extending rearwardly from the multiple spindle toolhead body seat in complementary locating cones spaced about the spindle on spindlehead to secure the multiple spindle toolhead body against rotation.
Patent CA-1179354-A (CA)
Inventor: DONETTI ARTURO
IPC: B01J31/00
Filed: 1982-10-28
Granted: 1984-12-11
Abstract: ABSTRACT OF THE DISCLOSURE   New process for the preparation of 4-(3-methyl-2-butenyl)-1,2-diphenyl-3,5-dioxopyrazolidine (Feprazone)   which comprises reacting 3-methyl-2-butenyl acetate with an alkali metal salt of1,2-diphenyl-3,5-dioxopyrazolidine in the presence of a catalyst, preferably a palladium complex, and a ligand.
Patent CA-1187477-A (CA)
Title: Rotary heat regenerator and method of manufacture  thereof
Inventor: STEELE DONALD F
IPC: F28D19/04
Filed: 1982-11-02
Granted: 1985-05-21
Abstract: ABSTRACT OF THE DISCLOSURE         A rotary heat recovery device, comprising a heat recovery wheel formed of spiral wound layers of at least one strip osysthetic organic plastic material and spacing means between the layers forming gas passages therebetween, in which the wheel has reinforcing means provided by narrow portions extending radially in which the layers of the strip have been adhered together.  Also disclosed is a method of providing reinforcement to a rotary heat recovery device formed of a spiral winding of at least one strip of thermoplastic material, comprising applying to the strip a heated member to form a radial fused portion.
Patent CA-1171789-A (CA)
Inventor: DAVIES ROY V
IPC: A61K31/47
Filed: 1982-11-10
Granted: 1984-07-31
Abstract: Abstract Therapeutic Agents Therapeutic  compositions  which  comprise  as  an active ingredient a quinolone of the general formula                        I   wherein n is 0, 1 or 2 and either (a) R2 is hydrogen and R1 is methyl or ethyl, or (b) R2 is methyl and R1 is ethyl, provided that, when R1 is ethyl, n is 1 or 2, together with a pharmaceutically acceptable carrier. The compositions have antihypertensive activity and may be  used  for  treating  hypertension  in warm blooded animals including man.   Administration may be enteral or parenteral; enteral administration, especially oral administration, is preferred.
Patent CA-1191012-A (CA)
Title: Insulated roof structure system and method of  erecting same
Inventor: BERGER HANS G
IPC: E04D3/36
Filed: 1982-12-01
Granted: 1985-07-30
Abstract: INSULATED ROOF STRUCTURE SYSTEM   AND METHOD OF ERECTING SAME                     ABSTRACT OF THE DISCLOSURE            A method and a clip system for installing insula-tion on the purlins of a sheet metal roof construction is disclosed.  The clip is of one-piece resilient construction and of a shape to be snapped over a portion of an insulating blanket and the upper portion of a roof purlin to snugly clamp the engaged portion of the blanket against the top and upper opposite sides of the purlin.  The blanket is thus contained by the clips below the tops of the purlins so that a pocket suitable for the reception of an unfaced batt of insulating material is formed in the top of the blanket be-tween adjacent purlins.  The top of the clip may be provided with suitable means, such as adhesive or projecting barbs, for positively retaining a board of insulating material such as styrofoam, above each purlin and retaining the board against movement during the assembly of overlying roof panels.
Patent CA-1213298-A (CA)
Inventor: PLANT ROBERT
IPC: F16J9/06
Filed: 1982-12-15
Granted: 1986-10-28
Abstract: ABSTRACT OF THE DISCLOSURE          An annular spacer-expander spaces and positions two rails in a piston ring groove of a piston for an internal combustion engine.  The spacer-expander comprises a plurality of U-shaped members which lie in respective angularly spaced planes including the spacer-expander axis and whose arms open inwardly of the spacer-expander for urging radially inner ends of respective rails into contact with respective radial walls of the piston ring groove.  The U-shaped members are interlinked in serpentine fashion to give the spacer-expander circumferential resilience,  The ends of the U-shaped members are bent outwardly for urging the rails into contact with an associated cylinder or liner.          A plurality of rail spacer lugs are provided for controlling axial movement of the radially outer ends of the rails.  Each ring spacer lug is located between a pair of adjacent U-shaped members and is connected to that portion of one of the pair which forms the base of the U.
Patent CA-1216627-A (CA)
Inventor: KAMMILLER NEIL A
IPC: H02H3/02
Filed: 1983-05-02
Granted: 1987-01-13
Abstract: POWER SUPPLY AND CIRCUITS THEREFOR     ABSTRACT OF THE DISCLOSURE       Circuitry for use in a power supply of the type which includes a power switching means and uses a waveform of predetermined shape to control the power switching means such as in a first mode the supply regulates its output voltage and in a second mode controls the current in the power switching means.  The circuitry synchronizes the frequency of the waveform to the master clock frequency of the load connected to the supply.  The circuitry also inhibits the transfer of the supply from its first to second mode of operation in response to rapid variations in the power switching current by temporary disturbances in the load.  The circuitry also provides constant drive current for the power switching means even if the input voltage to the supply is unregulated.  Finally, the circuitry attempts to turn the supply off in response to an overvoltage condition at its output and failing that provides a short circuit path so that current sufficient to cause the fuse in the output to open will flow therethrough.