baber/WOPTO huggingface dataset:
Patent CA-1172767-A (CA)
Inventor: RATHBUN DONALD J
IPC: H04L25/49
Filed: 1980-04-29
Granted: 1984-08-14
Abstract: ABSTRACT        Information to be written in the form of magnetic flux reversals on the surface of a disk or diskette is applied in serial fashion to a first shift register.  The parallel outputs of the shift register address a PROM, The PROM output is applied to a second shift register in the form of clock and data bits to be written on the disk or diskette magnetic surface.  Control signals applied to the PROM address terminals  elect the mode, FM or MFM, the address mark or if precompensation is required.
Patent CA-1147857-A (CA)
Inventor: SIVERLING MICHAEL M
IPC: G11B23/50
Filed: 1980-05-27
Granted: 1983-06-07
Abstract: RECIRCULATING FILTER DUCT DESIGN               ABSTRACT OF THE DISCLOSURE      A disk file is equipped with a recirculating filter duct utilizing the pressure differentials within an enclosure imparted by the rotating disk to induce an air flow in the duct having an inlet near the disk periphery and an outlet effectively radially inward thereof.  The flow of air through this duct is enhanced by a deflector adjacent the duct outlet at the side thereof initially approached by a given point on the rotating disk and a projection approaching the opposite surface of the disk or disk pack and generally axially aligned with the deflector to equalize the forces exerted and avoid instability of disk operation.  The duct is configured to eliminate eddy currents and the air volume within the enclosure is limited to increase the rate at which air changes occur.
Patent CA-1151475-A (CA)
Inventor: IRONS IAN B
IPC: B21D39/04
Filed: 1980-06-06
Granted: 1983-08-09
Abstract: ABSTRACT     A method and apparatus for production of couplings for joining together sections of metal tubing, the couplings being of the type comprising sockets having e.g. an annular recess carrying a filler metal, whereby the filler metal comprises a plastic composition which is applied under pressure to a selected internal area of a section of deform-able tubing, thereby to form an indentation containing A deposit of plastic composition.
Patent CA-1128976-A (CA)
Inventor: LOB JAMES P
IPC: B62B13/08
Filed: 1980-07-28
Granted: 1982-08-03
Abstract: SNOWMOBILE SUSPENSION Abstract of the Disclosure An improved connection between the two steering posts and the steering skis at the forward end of a snowmobile which includes for each post and each ski a downwardly convexed leaf spring connected at its front and rear ends to the ski and bracket structure that connects the intermediate portion of the spring to the post.  The bracket structure includes a pair of brackets, one of which is connected to a forward portion of the spring and the other of which is connected to a rearward portion of the spring so as to hove relatively long length of spring between the two portions.  The. two brackets have vertical walls that are disposed side-by-side. and extend upwardly to be con-nected to a horizontal trunnion mounted or fixed to the lower end of the post.
Patent CA-1196146-A (CA)
Inventor: ERCHAK MICHAEL
IPC: C08G63/68
Filed: 1980-08-06
Granted: 1985-10-29
Abstract: ABSTRACT OF THE DISCLOSURE         Ovenware capable of use in both conventional thermal and microwave ovens fabricated from wholly aromatic polyesters, and, more particularly from oxybenzoyl polyesters.
Patent CA-1114133-A (CA)
Title: Process for producing aqueous solution of calcium  nitrite
Inventor: ENDO MAKOTO
IPC: C04B22/08
Filed: 1980-09-29
Granted: 1981-12-15
Abstract: ABSTRACT OF THE DISCLOSURE An aqueous solution of calcium nitrite having high purity and high concentration is obtained by contacting a nitrogen oxides containing gas with an aqueous slurry of calcium hydroxide.  It is necessary to use the aqueous slurry having high calcium hydroxide content such as 20 to 40 wt.%, whereby it is necessary to feed the gas having high nitrogen oxides concentration, such as 5 to 12 vol.% to give a high conversion to calcium nitrite.  In order to prevent a formation of by-product calcium nitrate, a nitrogen oxides containing gas having 5 to 12 vol.% of a nitrogen oxides concentration and a 1.5 to 2.5 molar ratio of NO/NO2 is fed under high pressure sufficient to prevent a concentration of said slurry as a first stage and then, the unabsorbed gas is oxidized and the resulting gas having a 1 to 5 vol.% nitrogen oxides concentration and a 1.6 to 2.5 molar ratio of NO/NO2 is fed to the aqueous slurry having a 2 to 12 wt.% calcium hydroxide obtained in the first stage so as to convert the residual calcium hydroxide to calcium nitrite without forming by-product calcium nitrate.  The process is carried out as continuous process having a first reaction zone and a second reaction zone.
Patent CA-1147156-A (CA)
Inventor: LOWENTHAL HANS
IPC: F23Q2/16
Filed: 1980-10-22
Granted: 1983-05-31
Abstract: A B S T R A C T      A gas burning lighter with electrical spark ignition has a closed casing.  Successive downward operative movements applied to an actuator slide first releases a pivotal element which moves outwards to an open position, creating a flame aperture and opening a burner valve, and secondly operates a piezoelectric ignition mechanism to cause discharge of a spark and ignition of the gas to produce a flame.
Patent CA-1145567-A (CA)
Inventor: KORAN KENNETH W
IPC: F01D25/12
Filed: 1980-12-04
Granted: 1983-05-03
Abstract: ABSTRACT OF THE DISCLOSURE         Method and apparatus to limit and control rotational loss heating such as occurs in a large steam turbine in the bypass mode of operation under no-load and low-load operating conditions.  According to the invention, a portion of the high pressure bypass steam is admitted to the lower pressure sections of the turbine to provide motive fluid for driving the turbine while, simultaneously, a second portion of the high-pressure bypass steam is admitted to the high-pressure section of the turbine in a reverse-flow direction to pass backwards therethrough and limit the rotational loss heating.  The two flows may be proportioned to control rotational loss heating in both the high-pressure and lower pressure sections of the turbine.  A reverse-flow valve and a ventilator valve are provided for routing the reverse-flow of steam.
Patent CA-1133700-A (CA)
Title: Process of beneficiating coal and products
Inventor: BURGESS LESTER E
IPC: B03D3/06
Filed: 1980-12-24
Granted: 1982-10-19
Abstract: ABSTRACT OF THE DISCLOSURE         Beneficiated coal and a process for beneficiating coal are provided.  Mined coal is pulverized in the presence of water to form a particulate coal aqueous stream.  The extended surfaces of the particulate coal are rendered hydrophobic and oleophilic in a chemical graft polymerization reaction wherein a polymerizable organic monomer is utilized to render the particulate coal hydrophobic and oleophilic.          The reaction occurs in an aqueous medium in the presence of free radical polymeric catalysts and initiators and a fuel oil.  Mineral ash and sulfur normally present in the coal are separated from the treated coal in a water washing step.  The unwanted impurities are removed in a water stream.  The chemical treatment and the washing step can be effected in a unitary operation.  The recovered coal particles can be dried to remove excess water.  Such drying can be effected using simple mechanical dryers.  The beneficiated particulate coal can be burned as a fuel, or it can be admixed with oil to form a-coal-oil mixture.  A salt forming compound and a chemical treatment step are provided to stabilize the coal-oil mixture. The resultant coal-oil mixture is beneficiated and stable for extended periods of time.
Patent CA-1149961-A (CA)
Inventor: BLOOMSTEIN RICHARD W
Filed: 1981-01-20
Granted: 1983-07-12
Abstract: Abstract of the Disclosure A system and method that creates visual images of lip move-ments on film, video tape, or other recorded media.  Speech sounds are analyzed, digitally encoded and transmitted to a data memory device.  Stored within the data memory device is a program for producing output data that creates visual images of lip movements corresponding to the speech sounds.  Under control of the data for the speech sounds, the graphical output from the data memory device is sent to a graphic output device and related display equipment to produce the graphical display.  This display may be combined with the speech sounds so that the resultant audio-visual composite, such as a film strip, contains lip movements corresponding to the speech sounds.
Patent CA-1164810-A (CA)
Inventor: THORNTON DONALD I
IPC: F01M11/03
Filed: 1981-01-27
Granted: 1984-04-03
Abstract: ABSTRACT OF THE DISCLOSURE A filter assembly includes a housing for releasably locking to a base for enclosing a replaceable filter element.  The base includes a support over which the housing is positioned.  The support includes a plurality of radially extending guide pins.  A plurality of radially movable jaws are mounted on the guide pins to releasably lock the housing to the base.  A rotatable cam ring is coaxially mounted on the support and includes cam slots for receiving corresponding axially extending cam engaging portions of the jaws.  The jaws move radially inwardly and outwardly to lock and unlock the housing from the base in response to rotation of the cam ring.
Patent CA-1158998-A (CA)
Inventor: KIRBY KEVIN D
IPC: C12P7/06
Filed: 1981-01-29
Granted: 1983-12-20
Abstract: ABSTRACT OF THE DISCLOSURE          The production of ethanol, particularly ethanol used as a fuel, optionally in conjunction with gasoline (petrol) may be produced from carbohydrate containing material, such as starch-containing material or sugar-containing material, by a solid phase fermentation process.  The solid phase fermentation process comprises the steps of (a)  crushing or pulping said carbohydrate-containing material to produce a pulp containing substantially no free liquid and comprising particles of said material having diameters of the range up to about 10 mm;          (b)  where necessary saccharifying and, if desired, heating said pulp to convert non-sugar carbohydrates in said material to sugars;          (c)  mixing a suspension of yeast with said pulp (simultaneously with or subsequent to said saccharification, if used) and maintaining said mixture under fermentation conditions to allow said yeast to convert sugars in said pulp to ethanol; and (d)  extracting ethanol from said fermented pulp.
Patent CA-1152914-A (CA)
Inventor: LUTZEN NIELS W
IPC: C12R1/865
Filed: 1981-02-04
Granted: 1983-08-30
Abstract: ABSTRACT OF THE DISCLOSURE         A fermentation process for production of ethanol involves fermenting an aqueous suspension of granular starch with an ethanol producing microorganism in the presence of alpha-amylase and glucoamylase, in which the concentration of dissolved total sugar is close to zero during the main course of the fermentation.  Control over the fermentation rate can be exercised through variations in the starch concentration in the slurry.  The resulting process has improved thermal efficiency.
Patent CA-1124556-A (CA)
Title: Anatomical intra-orally moldable dental impression  tray and method of using the same
Inventor: TUREAUD KENNETH E
IPC: A61C9/00
Filed: 1981-04-07
Granted: 1982-06-01
Abstract: ABSTRACT A dental impression tray is disclosed which comprises a sheet of thermoplastic material which can be molded when heated to a temperature above the temperature encountered in the oral cavity of which an impression is to be made.  The sheet has a U-shaped trough adapted to engage an alveolar ridge and a palatal vault engaging section extending from and supported within the trough. The vault section has a pleat extending away from the vault engaging side, whereby the tray may be heated exteriorly of the oral cavity, placed into position relative to the oral section for which an impression is to be made and manually molded to approximate intimacy with that oral section before the tray cools to form a rigid final impression tray which is self-supporting.  The pleat allows the lateral separation of the opposed trough sides to be adjusted to accommodate differnt oral cavity widths without interfering with the fit of the tray vault section against the palate and aids in preventing the tray from reverting back to its premolded shape.
Patent CA-1151110-A (CA)
Inventor: SEITA TORU
IPC: C25B1/46
Filed: 1981-04-24
Granted: 1983-08-02
Abstract: ABSTRACT OF THE DISCLOSURE      An aqueous solution of an alkali metal chloride is elec-trolyzed using a cation exchange membrane having two layers comprising a first layer made of a fluorocarbon polymer having (a) groups of the formula -O(CF2)nCOOM where M represents H, an alkali metal atom or -NH4; and n=2 to 5 and a second layer made of a fluorocarbon polymer having (b) groups of the formula -O(CF2)nSO3M where M and n are defined above in which the layer having (b) groups of the formula -O(CF2)nSO3M faces an anode compartment. The layer having (b) groups of the formula -O(CF2)nSO3M is formed by treating a cation exchange membrane having (a) groups of the formula -O(CF2)nCOOM and an ion ex-change capacity of 1.1 to 2.0 meq./g. dry resin to convert (a) groups of the formula -O(CF2)nCOOM in one layer into groups of -O(CF2)nI (n=2 to 5) and further to convert the groups into groups of the formula -O(CF2)nSO3M where M and n are defined above.
Patent CA-1165241-A (CA)
Inventor: DAVID STEPHEN T
IPC: A61K31/52
Filed: 1981-04-29
Granted: 1984-04-10
Abstract: SUSTAINED RELEASE THEOPHYLLINE   TABLET HAVING REDUCED BULK          Abstract of the Disclosure Non-disintegrating theophylline tablets having a pair of opposing substantially planar surfaces and a very thin cross-section have a high bioavailability on ingestion and a relatively steady release rate permitting a 12 hr. dosing interval for maintenance of non-toxic therapeutic blood theophylline concentrations.  Excipients or tableting aids are not required, but trace amounts of a tableting lubricant are preferably included to facilitate continuous large scale production.
Patent CA-1179332-A (CA)
Inventor: KAY EDWARD L
IPC: B29B15/00
Filed: 1981-05-07
Granted: 1984-12-11
Abstract: ABSTRACT                Rubber, hydrocarbons, i.e., resins, and other useful by-products are extracted from shrubs such as quayule and quayula-like shrubs by a procedure wherein the shrub, after being comminuted, is processed in an aqueous and/or a non-aqueous system. An optional water treatment step can be used to remove water solubles and/or facilitate processing and achieve increased yield of desired by-products.
Patent CA-1163173-A (CA)
Inventor: SCHENCK RAY B
IPC: A01G23/00
Filed: 1981-05-08
Granted: 1984-03-06
Abstract: SLASH RECOVERY SYSTEM     Abstract A vehicle for removing slash from steep logging slopes includes an anti-skid propulsion system characterized by a power winch for reeling in an uphill-anchored cable and a pair of crawler tracks (or large tires) driven in synchro-nization with the winch.  The vehicle has an articulating tail boom for working against the cable to assist in maneu-vering the vehicle along the slope and stabilizing the vehicle during slash gathering operations.  A knuckle boom which is extendable from the vehicle has a grapple for gathering slash within a relatively large area around the vehicle.  Removal of slash from the operating site of the vehicle is accomplished by transporting the slash to an access landing using a mobile slash wagon or by chipping the slash using a chipper mounted on the vehicle and then pneumatically carrying the chips through a pipe to a storage van at an access landing remote from the vehicle.
Patent CA-1148687-A (CA)
Inventor: BURK RAYMOND D
IPC: C08F279/00
Filed: 1981-05-14
Granted: 1983-06-21
Abstract: Case No. 08-12-0423 A PROCESS FOR THE CONTINUOUS MASS    POLYMERIZATION OF POLYBLENDS                    ABSTRACT OF THE INVENTION        The present invention relates to an improved pro-cess for the continuous mass polymerization of solutions comprising alkenyl aromatic monomers having about 1 to 10% by weight of a polybutadiene rubber dissolved therein, the steps comprising, (A) continuously charging said solu-tion to a first reaction zone operating at about 20 to 45% conversion forming a first partially polymerized mix-ture, (B) continuously charging said first mixture to a second reaction zone operating at about 50-85% conver-sion forming a second partially polymerized mixture, and finally, (C) separating the residual monomer from said second mixture providing a polyblend of a matrix phase of said monomers having polybutadiene rubber particles grafted with said monomers dispersed therein, the improve-ment comprising: charging a monomer-polybutadiene solution in step (A) having in addition about 1 to 10% by weight of a diene block copolymer and about 1 to 20% by weight of a polymer of said monomers dissolved in said solution followed by carrying out steps (B) and (C) to provide a polyblend of a polymer of said monomers having dispersed therein rubber particles grafted with said monomers, said rubber particles containing said polybutadiene and diene block copolymer rubbers and forming a gel phase of said rubber particles containing grafted and occluded poly-mers of said monomers in an amount of about 0.5 to 5 parts per part of total rubber.
Patent CA-1158115-A (CA)
Inventor: AUBEL JOHN A
IPC: F02M3/06
Filed: 1981-06-02
Granted: 1983-12-06
Abstract: DIFFERENTIAL PRESSURE DELAY VALVE          Abstract:    A differential pressure delay valve for vacuum controlled devices is disclosed.  The valve (10,110) has input, output and third chambers with a controlled flow orifice (34,130) in a separating plate (22,118) between the input and third chambers; a diaphragm operator (26,122) with a controlled flow orifice (38,134) between the input and third chambers; a stem (44,140) with a seal (46,142) on one end attached to and operated by the diaphragm to open or close a port (32,128) in the separating plate; and, a bias spring (48,144) of any predetermined level to maintain the port in a closed position is located in either the input or third chambers. The diaphragm operator opens the port to balance the pressures in the input and output chambers when the change in input pressure or vacuum both is greater than the bias force of the spring and too sudden for rapid dissipation through the fixed orifices.  At pressure changes less than the bias force of the spring the valve operates as a standard delay valve.
Patent CA-1165110-A (CA)
Inventor: KITAMOTO TATSUJI
IPC: G11B5/85
Filed: 1981-08-11
Granted: 1984-04-10
Abstract: ABSTRACT OF THE DISCLOSURE        A magnetic recording medium manufacturing device in which a flexible belt-shaped support is conveyed above a molten metal vaporizing source substantially at a constant speed while a magnetic film is formed on a surface of the support by vacuum deposition.  The support is guided by transporting means such that the support is curved above the molten metal vaporizing source along a path wherein metal vapor flow lines connecting the center of the molten metal vaporizing source to points on the surface of the support form a constant angle of incidence with the longitudinal direction of the support.  An adjusting mechan-ism is provided to change the angle of incidence by moving the transporting means along lines parallel to the metal vapor flow lines.
Patent CA-1170972-A (CA)
Inventor: KRAJICEK RICHARD W
IPC: F23N5/00
Filed: 1981-08-13
Granted: 1984-07-17
Abstract: SAFETY APPARATUS AND METHOD FOR USING SAME FOR PREVENTING EXPLOSIVE FAILURE OF A HIGH PRESSURE COMBUSTION FURNACE                          ABSTRACT A safety apparatus and method for using same to prevent explosive failure of a high pressure combustion furnace wherein the apparatus includes a housing adapted to be mounted about the high pressure combustion furnace forming a safety chamber therebetween for flowing a safety fluid therethrough, utilizing pressure means for maintaining the safety fluid at a pressure greater than the internal operat-ing pressures within the high pressure combustion furnace to prevent explosive failure thereof.
Patent CA-1174672-A (CA)
Inventor: DANCSI LAJOS
IPC: A61P35/00
Filed: 1981-08-17
Granted: 1984-09-18
Abstract: Abstract The invention relates to a process for the preparation of new cyto-static compounds and pharmaceutical compositions containing them   More particu-larly, the invention concerns a process for preparing compounds of the general formula (1)                  (I) in which R4  is a .beta.-hydroxyl and R3  is an .alpha.-ethyl; or R4  is hydrogen and R3  is a .beta.-ethyl; R41 is a straight chained alkyl having from 1 to 10 carbon atoms, other than ethyl or a branched chained alkyl having fro  3 to 10 carbon atoms, in which the carbon atom attached to the ?Na-CH2-O- group has a primary or secondary configuration or an aralkyl having from 1 to 3 carbon atoms in the alkyl moiety;          R1  is methoxy and R2  is acetyl.     The pharmaceutical compositions comprising as active ingredient pharmaceutically effective amounts of said compounds are also within the scope of the invention.
Patent CA-1171716-A (CA)
Inventor: ALBAUM JOSEPH D
IPC: A23L2/39
Filed: 1981-09-02
Granted: 1984-07-31
Abstract: ABSTRACT    A red colorant obtained from beets is stabil-ized against off flavor by incorporating therein a alkali  metal  salt,  such  as  sodium  chloride  or calcium chloride.
Patent CA-1185729-A (CA)
Title: Self-lubricating bearing and the like, and method of  making same
Inventor: MELLOR H CLAY
IPC: C10M111/00
Filed: 1981-09-10
Granted: 1985-04-16
Abstract: ABSTRACT OF THE DISCLOSURE           Self-lubricating bearings, such as journal-type bearings, are obtained by molding under pressure at elevated temperatures a substantially homogeneous blend of from about 70 to 95% of an ultra high molecular weight ethylene polymer and from about 5 to 30% of a normally solid lubricant which can be a wax, fat, or mixtures thereof, or a mixture of either or both of these lubricants with a grease.  The bearings exhibit excellent dimensional stability, good wear resistance, and a surface which is not oily to the touch.          The bearings are self-lubricating, slowly releasing lubricant at temperatures developed in ordinary use.
Patent CA-1169886-A (CA)
Inventor: MANNING HAROLD E
IPC: C07C7/177
Filed: 1981-09-15
Granted: 1984-06-26
Abstract: ABSTRACT OF THE DISCLOSURE The isobutene in C4 hydrocarbon streams containing 5 to 60 mole % isobutene and n-butenes may be reduced to a level of 0.2 mole % or less by passing the feed stream at LHSV 0.5 to 12 in liquid phase through a fixed bed cation exchange resin catalyst in a tubular reactor with a water heat exchange medium maintained at a tempera-ture of  30 to 80°C, whereby the isobutene is oligomerized and easily separated from the remaining C4 by fractionation.
Patent CA-1159363-A (CA)
Inventor: ARENDT HENRY P
IPC: E21B23/08
Filed: 1981-09-17
Granted: 1983-12-27
Abstract: WELL SYSTEM AND METHOD          Abstract of the Disclosure A method and apparatus especially adapted for use with an injection well in which a valve controlled H-member intercon-nects the two tubings of a two tubing installation and landing nipples are attached to the lower legs of the H-member to receive expendable fluid control means, such as standing valves, in which pressure applied to one tubing to create a pressure differential will move the valve controlling the interconnec-tion between the H-members to open position to permit TFI, operations to be carried out in the well and thereafter pres-sure exerted on a ball supported on the valve member of the control valve for the H-member closes the control valve, and the ball passes through the control valve. The fluid control members in the landing nipples may be ejected either before or after closing of the valve in the H-member.