baber/WOPTO huggingface dataset:
Patent CA-1129072-A (CA)
Title: Sub-sampling and interpolation techniques for  (facsimile) graphic signals
Inventor: PRASADA BIRENDRA
IPC: H04N1/411
Filed: 1979-05-04
Granted: 1982-08-03
Abstract: SUB-SAMPLING AND INTERPOLATION TECHNIQUES          FOR (FACSIMILE) GRAPHIC SIGNALS            Abstract of the Disclosure A graphic facsimile coding apparatus is provided for encoding graphic data, which comprises control means, graphic data scanning and digitizing means, and logic and storage means for interpolating edge points of graphic data contours and encoding the interpolation data in vacant spots of preceding or subsequent stored facsimile lines.                         - i -
Patent CA-1152522-A (CA)
Inventor: BERG ERIC P
IPC: A61K6/896
Filed: 1979-05-23
Granted: 1983-08-23
Abstract: ABSTRACT           Oligomers of highly purified methacryl substituted silanes, e.g., methacryloxyalkyltrialkoxy-silanes, can be combined with (meth)acrylate monomer  to give viscosities in a range such that they can be heavily filled for use in dental filling compositions.  They can remain stable for extended times in contact with catalyst until initiated and are of particular value in two part dental filling systems.
Patent CA-1132440-A (CA)
Title: Integrated control device for a fluid  circuit and applications thereof
Inventor: BENILAN JACQUES
IPC: F16K17/02
Filed: 1979-05-25
Granted: 1982-09-28
Abstract: AN  INTEGRATED CONTROL DEVICE FOR A FLUID          CIRCUIT AND APPLICATIONS THEREOF.              ABSTRACT OF THE DISCLOSURE.             The device comprises in a body a pressure limiting stage, a second stage constituting a fluid check and retarding valve and piloting means between these two stages.  The second stage comprises regulating means which are easily accessible from outside the body.  The device is particularly compact and is of high interest, for example when it is incorporated in a self-contained cylinder structure.
Patent CA-1125639-A (CA)
Inventor: FOXCROFT GARTH
IPC: B60C27/06
Filed: 1979-07-06
Granted: 1982-06-15
Abstract: ABSTRACT           A tire chain assembly comprising a tire chain wherein the spaces between the links of the chain are, at least partly, occupied by a wear resistant elastomeric material such that the combination of the material and tire chain form a belt adapted to be removably located over a tire of suitable size.
Patent CA-1136219-A (CA)
Inventor: SCHMOOCK ROY F
IPC: G01F1/60
Filed: 1979-07-24
Granted: 1982-11-23
Abstract: HIGH-VOLTAGE IMPULSE DRIVER FOR   ELECTROMAGNETIC FLOWMETER    Inventor:  Roy F. Schmoock, a citizen of the United States of America and resident of Richboro, Pennsylvania ABSTRACT OF DISCLOSURE          A drive system for an electromagnetic flowmeter wherein the fluid to be metered is conducted through a flow tube to intersect a transverse magnetic field created by an electro-magnet having an excitation coil.  The resultant voltage induced in the fluid is transferred to a pair of electrodes mounted at diametrically-opposed points on the tube to yield a signal repre-senting flow rate.  The drive system, which is powered from an a-c line, includes  a  full-wave  rectifier  whose output voltage is applied periodically to the excitation coil at a rate which is low relative to the line frequency.  In order to maintain the level of current through the coil at a substan-tially constant level during the excitation period without, how-ever, consuming an undue amount of energy, the coil is shock-excited by a high voltage surge derived from the rectifier to generate a current flow therein having a substantially constant current level, thereby producing a steady-state flux field minimizing the presence of unwanted components in the output signal of the flowmeter.
Patent CA-1108243-A (CA)
Inventor: YAMAGUCHI MASUMI
IPC: H05B6/80
Filed: 1979-09-30
Granted: 1981-09-01
Abstract: ABSTRACT OF THE DISCLOSURE          In a wireless temperature sensing assembly for use in a cooling apparatus including microwave ovens, there is described an improved wireless communication element and sensing probe wherein the sensing probe, whose elements combine to form an LC resonance circuit, is activatable by an external signal and need not therefore contain its own source of primary power.  Known cordless probes require a power source within the probe resulting in bulkier, costlier and more complex probes than the one presently described.  In this invention, a temperature sensing probe comprises a temperature sensitive oscillator which produces a resonance frequency which varies with sensed tempera-ture, and an antenna system for detecting an activating frequency which corresponds to the resonance frequency of the resonance circuit and which also serves to transmit to a receiver a signal, the frequency of which is dependent upon the sensed temperatures and which corresponds to the resonance frequency of the oscillator.
Patent CA-1155770-A (CA)
Inventor: SCARTON HENRY A
IPC: F01N1/20
Filed: 1979-10-10
Granted: 1983-10-25
Abstract: ABSTRACT OF THE DISCLOSURE            A muffler construction, particularly for exhaust gases of air-operated tools, comprises, a tubular sleeve having a passage therethrough, an exhaust gas pipe connected into the sleeve and defining a restricted flow passage with the sleeve, first and second opposed cylindrical coaxial shell sections, each having a closed end wall at their respective outer ends and facing in opposite directions engaged with the exhaust gas pipe, and sidewalls spaced radially outwardly from the sleeve.  The exhaust gas pipe has a gas pipe dis-charge and there are partition walls in the shell sections defining a first expansion chamber and at least one additional expansion chamber.  A constricted flow passage is defined between the first expansion chamber and the at least one additional expansion chamber with sealing and enclosing members closing the sidewalls of the first and second shell sections so as to define the first expansion chamber and at least one additional expansion chamber within the shell sections.  The exhaust gases from the discharge enter into the first expansion chamber and form a vortex therein with the gases then flowing into the restricted passage into the additional chamber wherein a second vortex is generated.  A final gas discharge is defined in the wall of the second shell sections which communicates with the atmosphere.
Patent CA-1124343-A (CA)
Title: Electrical transformer with  composite magnetic core
Inventor: LIN KOU C
IPC: H01F27/245
Filed: 1979-10-10
Granted: 1982-05-25
Abstract: 17                     48,043 ABSTRACT OF THE DISCLOSURE                An electrical transformer having an electrical winding and a magnetic core having two parallel magnetic circuits having unequal mean lengths.  The shorter of the parallel magnetic circuits is constructed of a magnetic material which exhibits a lower loss characteristic than the magnetic material used in the longer of the parallel magnetic circuits, at like levels of induction.
Patent CA-1137488-A (CA)
Inventor: BOCHIS RICHARD J
IPC: A23K1/18
Filed: 1979-10-12
Granted: 1982-12-14
Abstract: TITLE OF THE INVENTION          Novel Pyromellitic Diimides ABSTRACT OF THE DISCLOSURE          Novel substituted pyromellitic diimides are disclosed wherein the compounds are assymetrically substituted with a variety of substituent groups.  Processes for the preparation of such compounds are also disclosed.  The novel assymetrically substituted pyromellitic diimides are useful for administration to ruminant animals to increase feed efficiency, shift volatile fatty acid production in the ruminants from acetate with an increase in the more energetically efficient propionate and butyrate and to suppress methane formation in the rumen.  Composition and methods of treatment utilizing said compounds as the active ingredient thereof are also disclosed.
Patent CA-1150772-A (CA)
Inventor: BERTE MARC
IPC: G01T1/29
Filed: 1979-11-05
Granted: 1983-07-26
Abstract: A DEVICE FOR QUANTITATIVE DISPLAY OF THE    CURRENT DENSITY WITHIN A CHARGED-PARTICLE BEAM                 Abstract of the Disclosure The device for displaying the distribution of current density of a beam of electrically charged particles comprises a support plate of electrically insulating material having a surface area at least equal to the cross-sectional area of the beam and m x n =  q electrically conducting elements e which are fixed on the support plate in a lattice array of m lines and n columns.  These elements emn intercept portions of the beam and are each electrically connected to a system designed   to process the electrical signals collected by said elements and to display the current density at m x n points of the beam cross-section.
Patent CA-1110288-A (CA)
Inventor: COMBES MARVIN G
IPC: F16K3/20
Filed: 1979-12-11
Granted: 1981-10-06
Abstract: ABSTRACT OF THE DISCLOSURE            Sealing means for a flat gate valve comprising one-piece seat rings on both sides of the gate.  A resilient O-ring is loosely received in an annular groove in the leading face of each seat ring and the leading faces of the seat rings radially outward of the annular groove are relieved to provide small clearances with the sides of the gate. A series of vent ducts are provided in the seat ring at the bottom thereof from the bottom of the O-ring groove to the valve body space radially outward of the seat ring.
Patent CA-1161695-A (CA)
Title: Suspension device for a sliding wall panel of a  sliding partition
Inventor: BAUS HEINZ G
IPC: E04B2/74
Filed: 1980-03-17
Granted: 1984-02-07
Abstract: ABSTRACT OF THE DISCLOSURE:           A sliding wall panel of a sliding partition, in particular for humid rooms.  This sliding wall panel has a frame and a suspension device connected to the frame.  Each suspension device comprises a roller adjustably mounted on the frame of the wall panel and capable of rolling on a guiding rail in the installed state of the wall panel; a chamber formed in the frame and having an upper opening; a rotatable adjusting part housed in the chamber and having a longitudinal vertical axis.  The adjusting part has in its upper terminal portion internal threads engaged by the supporting element by means of external threads provided on the surface thereof.  The supporting element is held against rotation and is supportingly connected from above to the roller whereby the supporting element may be moved up and down by rotation of the adjusting part.  The latter consists of an adjusting cylinder and a projection in the form of a pin is provided on the supporting element, this projection passing through the adjusting cylinder in the axial direction, extending past the adjusting cylinder and engaging in a blind hole in the floor of the chamber.
Patent CA-1130486-A (CA)
Inventor: BERREMAN DWIGHT W
IPC: G02F1/139
Filed: 1980-03-31
Granted: 1982-08-24
Abstract: BISTABLE LIQUID CRYSTAL TWIST CELL            Abstract of the Disclosure A bistable liquid crystal twist cell is disclosed.  The cell is characterized by at least two stable states (A, C) which exist indefinitely as long as no  external energy is applied to the cell.  External energy is necessary only for switching the cell between the stable states (8).  Cell configurations which permit the fabrication of patterned displays are additionally disclosed.  Specific embodiments include new techniques for switching the cell between the stable states.  (FIG. 1)            .
Patent CA-1148532-A (CA)
Inventor: VORK WILLIAM D
IPC: B44D3/06
Filed: 1980-04-28
Granted: 1983-06-21
Abstract: METHOD OF MIXING LIQUIDS             IN CLOSED CONTAINERS      ABSTRACT OF THE DISCLOSURE             A method is disclosed for mixing liquids in closed containers wherein the container is partially filled with a liquid such as paint and is moved over a closed path in a vertical plane such that the vertical velocity component of fluid movement causes a force component in the fluid within the container to displace the air therein away from the top of the container.
Patent CA-1150457-A (CA)
Inventor: GERLACH KLAUS
IPC: C10M175/00
Filed: 1980-04-30
Granted: 1983-07-26
Abstract: ABSTRACT OF THE DISCLOSURE An ultrafiltration membrane comprises one or more linear polyurethanes having a hydraulic permeability to water of from 50 to 500 l/m2.h, preferably 200 to 400 l/m2.h, (determined using a membrane approximately 0.020 mm thick at a temperature of 20°C for a pressure difference of 1 bar) and a separation factor ? (determined using a 2% oil-in-water emulsion at 25°C) of from 2 x 10-3 to 1 x 10-4; more particularly, the membrane comprises a linear poly-urethane having an average molecular weight of from 100,000 to 1,000,000 based on from 20 to 80%, by weight of poly-ethylene glycol and from 80 to 20%, by weight of ethylene glycol and diphenyl methane diisocyanate; the production of and use of such a membrane, in particular for separating oil from water, for working-up fat-containing waters or for concentrating oil-containing waters, is disclosed.
Patent CA-1140146-A (CA)
Inventor: WILLIAMS ROY C
IPC: C08G18/08
Filed: 1980-05-06
Granted: 1983-01-25
Abstract: ABSTRACT OF THE DISCLOSURE Aqueous dispersions of oil-modified, carboxyl-containing, urethane polymers are prepared by reacting diisocyanates or their isocyanate-terminated prepolymers, with half-esters of hindered diols, especially 2,2,4-trimethyl-1,3-pentanediol, and anhydrides of polycarboxylic acids, preferably aromatic acids having at least three carboxylic groups, especially trimellitic anhydride. The urethane polymers are "oil-modified", i.e., extended with unsaturated fatty acid esterpolyols; and when neutralized with ammonia or amines can be dispersed in water to form especially desirable coating compositions. An organic phosphite may be incorporated in the compositions to control the development of hardness in films made from the aqueous dispersions and thereby avoid the formation of wrinkles in films that are made from the compositions.
Patent CA-1137750-A (CA)
Inventor: CHEN CHANG C
IPC: A01M23/14
Filed: 1980-05-07
Granted: 1982-12-21
Abstract: AUTOMATIC ANIMAL-TRAPPING DEVICE     ABSTRACT OF THE DISCLOSURE     The present invention is to provide an automatic animal-trapping device, more particularly, to provide a kind of animal-trapping device, used for trapping mice and other like wild animals, which may repeat its operating cycle all over again and catch lots of mice in continuity with special functions of its automatic control mechanisms.
Patent CA-1136980-A (CA)
Inventor: LAURENT ALAIN P F
IPC: B60B35/02
Filed: 1980-05-16
Granted: 1982-12-07
Abstract: 1. A device for mounting a non-driving wheel (2), especially on an automotive vehicule, comprising a cylindrical axle (5) forming a spindle, characterized in that said axle has a single machined portion consisting of a safety head (7) located at one of its ends and a threaded portion located at the other end of said axle, in the absence of any collar or similar element, in that said axle is adapted to be forcibly mounted into a support (6) such as a suspension arm, integral with a box structure, until the safety head (7) engages said support (6), in that said axle is designed so that the non-driving wheel to be mounted is able to slide on the same by the intermediary of a ball bearing (11) blocked in a corresponding housing of said wheel (2), the above assembly then being locked in its position with the convenient axial clearence and the convenient pre-constraint by means of a braking nut (9) associated to a washer (10) and screwed on the threaded end of said axle with a predetermined torque.
Patent CA-1176787-A (CA)
Title: Photosetting adhesive composition
Inventor: CHEVREUX PIERRE
IPC: C09J5/00
Filed: 1980-05-26
Granted: 1984-10-23
Abstract: ABSTRACT         A photo-hardenable adhesive composition particularly suitable for use in the bonding of glass to other materials, especially plastics, as in the production of safety glass and armoured glass laminates and comprising (A) a photopolymerisable ester of an .alpha.,.beta. -ethylenically unsaturated acid and a hydroxylated urethane or urea and having a molecular weight of 500 to 10,00 (B) a photoinitiator (C) a substituted or unsubstituted aliphatic or cycloaliphatic N,N-dialkylamino alcohol ester of an .alpha.,.beta. -ethylenically unsaturated carboxylic acid, said alcohol having an alkylene moiety of up to six carbon atoms between hydroxy and the amino functions,and (D) an .alpha.,.beta. -ethylenically unsaturated carboxylic acid in an amount equal to one mole per mole of C, (C) and (D) being capable of reacting together to form a betaine, and preferably (E) at least one further copolymerisable monomer or oligomer and which may comprises an excess of (C) or (D) over equimolar.
Patent CA-1161777-A (CA)
Inventor: JUELKE BERNHARD
IPC: B65G53/40
Filed: 1980-06-12
Granted: 1984-02-07
Abstract: ABSTRACT OF THE INVENTION         This invention relates to devices for extracting hay or the like from a cylindrical tower silo, of the kind including a pneumatic conveyor pipe leading centrally into the silo and forming an inlet at its upper end, the conveyor pipe having a suction head to which the material is fed by means of a radial conveyor.  According to this invention, a portion of the conveyor pipe which follows the top end inlet into the silo extends radially with respect to the periphery of the silo and is rotatable around the axis of the silo.  The free extremity of the conveyor pipe radial  portion is associated with the suction head, to which the material is fed by means of the radial conveyor which conveys from the inside of the silo towards the outside thereof and also revolves around the silo axis.  A vertical telescopic pipe may connect the further conveyor pipe radial  portion -to the top end inlet.
Patent CA-1136991-A (CA)
Inventor: NAKASHIMA SYOZI
IPC: A61K8/24
Filed: 1980-07-30
Granted: 1982-12-07
Abstract: Abstract of the Disclosure An oral, tooth-treating composition which comprises 0.04 to 10% by weight of stannous fluoride and not less than 0.1% by weight of a phytic acid compound, the molar ratio of the phytic acid compound to stannous fluoride being in the range of from 0.01 : 1 to 4 : 1 and the composition being aci-dic, is effective in inhibiting dental caries and shows a prolonged effect after application.  When a difficultly soluble stannous compound such as stannous pyrophosphate is further blended preferably so that a portion of the difficultly soluble stannous compound is in a precipitate form, the composition is good in storage stability.  The oral composition may be used as dentifrices, mouthwashes, oral bands, topical solutions, cavity sealers, prophylactic pastes, dental flosses and the like.
Patent CA-1166965-A (CA)
Inventor: ZAJER MARIA NEE BALAZS
IPC: A61K31/435
Filed: 1980-08-15
Granted: 1984-05-08
Abstract: ABSTRACT           A dermatological composition is disclosed which con-tains as active ingredient a compound of the formula:                       (I) wherein R1 is hydrogen and R2 represents -COOCH3, -CONH2 or CONHNH2, or R1 represents methoxy and R2 represents -CO-OR3 or CH2-O-CO-R4 wherein R3 represents C1 to C5  alkyl and R4 represents C1 to C4 alkyl or trimethoxyphenyl,or a pharmaceutic-ally acceptable salt thereof, in association with a carrier or diluent.
Patent CA-1170609-A (CA)
Inventor: STRUCK CARL-HEINZ
IPC: F04F5/04
Filed: 1980-09-12
Granted: 1984-07-10
Abstract: ABSTRACT OF THE DISCLOSURE           A multi-orifice mozzle which is fitted into the tube connecting the riser to the main of coke ovens, is in the form of a pot having a perforate base and is formed with orifices widening frustum-fashion and serving for the injection of a compressible propellant, preferably steam, characterised in that in systems in which orifices are disposed in one or more circles around a central orifice, the ratio of the between-centres distance of the orifices in any one circle to the diameter of the exit end of the orifices is from 1.5 to 2.5, preferably 1.8 to 2.2.
Patent CA-1150125-A (CA)
Title: Urine suction and collection device for a vacuum  suction type urinating aid
Inventor: SAITO SHUICHI
IPC: A61F5/48
Filed: 1980-10-09
Granted: 1983-07-19
Abstract: Abstract of the Disclosure A urine suction and collection device for a vacuum suction type urinating aid which contains a urine receiver provided with a urine suction opening to be applied to a urinating region, a urine transport tube connected, at one end, with the urine re-ceiver and connected, at the other end, with a urine tank, and a vacuum suction tube communicating to a vacuum suction device, connected to the top of said urine tank, comprising: said vacuum suction device put in a housing at the one side, a cover fastened at its one end to the top of the housing at the other side, to be able to freely pivot around its one end, urine feed ports and air suction ports respectively provided at the top of the urine tank put in said housing and at the bottom of said cover, and the urine feed port and the air suction port of said cover respectively connected to said urine transport tube and said vacuum suction tube through passages in said cover.
Patent CA-1143916-A (CA)
Inventor: KILINSKAS WILLIAM A
IPC: C21D8/00
Filed: 1980-10-14
Granted: 1983-04-05
Abstract: 12,607 A METHOD FOR MAKING FASTENERS ABSTRACT OF  THE  DISCLOSURE       A method for making a fastener having a head and a shank from wire or rod consisting essentially of AISI 200 or 300 series stainless steel comprising the following steps:        (a)    cooling the wire or rod to a temperature of less than about minus 75°C;        (b)    drawing the cold wire or rod through a die at a strain sufficient to provide a tensile strength for the wire or rod in the range of about 75 ksi to about 160 ksi, the strain and the die size being such that the area of the wire or rod will be reduced by at least about 3 percent; and (c)    dividing the wire or rod into slugs and cold heading each slug to provide the fastener.                 S P E C I F I C A T I O N
Patent CA-1158540-A (CA)
Inventor: CONN WILLIAM H
IPC: E06B9/384
Filed: 1980-10-15
Granted: 1983-12-13
Abstract: ABSTRACT             Disclosed is a sectioned slat for a Venetian blind having a plurality of slats supported in spaced relationship by a support struct-ure which includes at least a pair of lift strings threaded through the slats on opposite sides of the center plane of the blind. The slat com-prises a plurality of sections having corresponding ends shaped for joining together in abutting relationship.  The joining is accomplished by pins mounted to extend from one abutting end for insertion into the other abutting end so as to be totally concealed when the slat is assembled.  A broken slat can be replaced without the necessity of taking the entire blind to a repair shop.
Patent CA-1159653-A (CA)
Inventor: VAYSSIERE PIERRE
IPC: C21C7/072
Filed: 1980-12-30
Granted: 1984-01-03
Abstract: A process for periodically and pneumatically stirring a bath of molten metal, wherein during the periods in which no stirring effect is required a fluid in gaseous state is injected through injection devices below the surface of the bath of molten metal in an amount sufficient to prevent blockage of the devices, whereas during the periods in which a stirring effect is required a fluid in liquid state which will vaporize quickly upon contact with the liquid metal is injected to provide an optimum amount of mixing gas with a minimum of injection devices. The process is advantageously used in converters for pneumatically converting pig iron into steel and in which oxygen is blown from above onto the bath of molten metal.