baber/WOPTO huggingface dataset:
Patent CA-1191004-A (CA)
Inventor: BRANDLI PAUL
IPC: A46B3/08
Filed: 1981-10-19
Granted: 1985-07-30
Abstract: ABSTRACT OF THE DISCLOSURE            A brush construction is disclosed which comprises one or more twisted wires having fixed filaments between turns of the wire or wires, the wire or wires having an electrically insulated, wear-resistant and elastic layer thereon.  This prevents the wire from reacting with its surroundings, for example, producing a galvanic or electrical effect when used as a dental or oral cleansing brush.
Patent CA-1189186-A (CA)
Inventor: WHITE JAMES N J
IPC: G11B21/02
Filed: 1981-12-22
Granted: 1985-06-18
Abstract: ABSTRACT OF THE DISCLOSURE.            "READ-WRITE HEAD THERMAL COMPENSATION SYSTEM".        A thermal compensation system for positioning a read-write head relative to computer disk surface is a mechanical arrangement and uses different materials with different coefficients of thermal expansion,   The interconnection of the different materials provides a primary thermal circuit and a compensating thermal circuit, in two separate chambers which have a steel shaft and circulating air in common.   In response to a change in temperature the chambers thermally equalise; a mis-position of the read/write head in the primary circuit is compensated by the compensation circuit which causes the shaft to rotate to retain the read/write head at its original position relative to the disk surface.          The principal materials used in the thermal circuits are aluminium and stainless steel.   The position of the shaft and arm can be adjusted with respect to a line through the hub and shaft to optimise compensation over the track positions and the temperature range of the disk drive.
Patent CA-1195670-A (CA)
Inventor: KARAPITA ALEXANDER D
IPC: F16M13/00
Filed: 1982-03-09
Granted: 1985-10-22
Abstract: ABSTRACT OF THE DISCLOSURE           The invention relates to a counterbalancing apparatus which employs a piston-cylinder assembly wherein one end of the piston is under atmospheric pressure and the other end is under zero pressure so that the net force on the piston is always atmos-pheric pressure irrespective of the relative position of the piston and cylinder.  This ensures a constant counterbalancing force for all positions of the object being counterbalanced.
Patent CA-1173555-A (CA)
Title: Procede et dispositif d'accentuation des traits d'une  image
Inventor: NAHON RICHARD
IPC: H04N5/14
Filed: 1982-03-11
Granted: 1984-08-28
Abstract: La présente invention a pour objet un procédé et un dispositif d'accentuation des traits d'une image en noir et blanc reproduite à partir d'une transcription numérique, formée d'une suite de nombres qui résultent d'une analyse de l'image originale par zones élémentaires successives et qui sont représentatifs des niveaux de gris de ces zones élémentaires. Le dispositif comporte une partie analogique, disposée entre un convertisseur numérique analogique et un convertisseur analogique-numérique,compre-nant des échantillonneurs analogiques, des comparateurs, un soustracteur, un amplificateur et un limiteur pour effectuer une sélection et le calcul d'un terme correctif à partir d'un écart entre les nombres successifs. Des moyens de traitement numérique ajoutent les termes correctifs aux nombres de la transcription numérique.
Patent CA-1188064-A (CA)
Inventor: GREEN DAVID
IPC: C08L21/00
Filed: 1982-03-11
Granted: 1985-06-04
Abstract: ABSTRACT      Asbestos-free fibre reinforced sheet material comprises from 10 to 35% by weight of a cured elastomeric binder and from 20 to 70% by weight of glass fibres (including ceramic fibres or mineral fibres or mixtures of these) surface  treated with a composition which is readily soluble in the solvent used in compounding the elastomeric binder.
Patent CA-1188698-A (CA)
Inventor: FOERSTER HEINZ
IPC: C07D285/08
Filed: 1982-03-12
Granted: 1985-06-11
Abstract: Abstract New N-(2,2,2-trifluoroethyl)-N-alkyl-azolyloxy-acetic acid amides of the general formula   in which R and R1 have the meaning given in the description, a process for the production of which is described, find use as herbicides.    The intermediate products of the general formulae                (IV) and                (II) in which R1 in each case has the same meaning as in formula (I), for the preparation Or the compounds (I) are also new.
Patent CA-1160062-A (CA)
Inventor: CYR J HENRY
IPC: A01F29/10
Filed: 1982-03-30
Granted: 1984-01-10
Abstract: METAL DETECTOR FEED ROLL                 ABSTRACT OF THE DISCLOSURE The problem of false metal detections due to excessive weld requirements in metal detector feed rolls is avoided due to using channel-shaped slats having adjacent flanges spot welded together.
Patent CA-1179917-A (CA)
Inventor: ZINGG WARREN M
IPC: G01P5/14
Filed: 1982-04-07
Granted: 1984-12-27
Abstract: ABSTRACT OF THE DISCLOSURE           A choke flow bean is described which is unusually effective in reducing the pressure of fluids flowing through it.  The choke flow bean has a well rounded circular or eliptical throat which opens smoothly and directly into a divergent truncated exit cone having a divergent angle of from 4° to 8°. The length of the truncated exit cone can be up to about 9 times the throat diameter.  The outer sur-face of the choke flow bean is usually cylindrical in shape with external threads at the discharge end and a wrench fitting (e.g., hex-nut type) at the inlet end.  The choke flow bean is usually embodied within the casing of a choke nipple with the assistance of choke adaptor. 29,143-F
Patent CA-1176369-A (CA)
Inventor: OGAWA KENJI
IPC: G11B5/41
Filed: 1982-05-17
Granted: 1984-10-16
Abstract: CLEANING DEVICE              ABSTRACT OF THE DISCLOSURE      A cleaning device for magnetic tape heads comprises a mylar tape on which is deposited a layer of a low-tack adhesive.  A dacron fabric is bonded to the mylar tape by the adhesive layer.  This dacron tape acts as a mechanical cleaning surface when it is moved across the contact surface of the tape head.  The adhesive layer operates both to secure individual strands of the fabric rigidly in place so as to support the strands properly when they are in contact with the tape head, and also to capture and control the movement of magnetic particles dislodged from the tape head by the strands of the fabric.  Alternate embodiments provide ridges for defining a pattern of raised projections extending away from an underlying base.
Patent CA-1187852-A (CA)
Inventor: BELDE HORST
IPC: C09D17/00
Filed: 1982-07-06
Granted: 1985-05-28
Abstract: Abstract of the Disclosure:  Aqueous suspensions of finely divided titanium dioxide are produced in the presence of dispersants by a process in which titanium dioxide powder and caprolactam are kneaded together in the dry state at from 15 to 40°C, the resulting mixture is kneaded with the addition of water, the paste thus obtained is suspended in water, the suspension is then allowed to sediment, and the resulting suspension containing finely divided titanium dioxide is decanted.
Patent CA-1196092-A (CA)
Title: Broadband antennae with frequency compensation stubs
Inventor: SNYDER RICHARD D
IPC: H01Q9/20
Filed: 1982-08-05
Granted: 1985-10-29
Abstract: BROADBAND ANTENNAE                 Abstract of the Invention The deviation in operating frequency which antenna system elements can handle without serious trans-mission line mismatch is increased by constructing the antenna such that the inner portions (40, 42) of its legs (40,48 and 42,50) are formed of coaxial transmission line connected so that the outer conductor serves as part of the radiator, and so that the inner and outer conductor of the line cooperate to form compensation stubs whose impedance varies with frequency in a manner to cancel or oppose the reactance which the antenna legs exhibit with frequency change.  The stubs are connected in series or in parallel with the antenna feed point and parasitic elements.  Surge impedance is selected so that the antenna driven elements (nearly resistive) and signal source, and parasitic elements that incorporate the invention, are mismatched at band end frequencies and center band frequency in approximately like amount.  The impedance is selected such that the antenna (somewhat reactive) and signal source are more nearly matched at frequencies midway between cen-ter band frequency and band edge frequencies.
Patent CA-1195178-A (CA)
Inventor: TERASAWA KOJI
IPC: B41J2/165
Filed: 1982-10-01
Granted: 1985-10-15
Abstract: ABSTRACT OF THE DISCLOSURE       A capping device for a multi-ink jet head is disclosed.  The capping device is provided with means for keeping the nozzles of the head isolated from each other whilst the head is capped.  Separate ink suction channels are provided for each nozzle, and whilst these channels may merge at a point intermediate their length, shut off means are provided in the channels prior to their point of merger which are shut off the channels except during suction.
Patent CA-1197243-A (CA)
Inventor: BOURGERY GUY
IPC: C07C45/63
Filed: 1982-12-20
Granted: 1985-11-26
Abstract: ABSTRACT         New aromatic derivatives having an activity antagonistic to calcium and corresponding to formula:                           (I) in which:         - A represents a chain having any one of the following structures:                   - Ar represents a group of structure:              - n takes the value 1 or 2 when R is different from H;         - m takes the value 2 or 3.         These new aromatic derivatives and their pharmaceutically acceptable salts are useful in the treatemnt of afflictions related to a disturbance of the intra and extra cellular movements of calcium and particularly troubles of the cardiovascular system,  particularly as antiangorous, antirhythmic,  antihypertension agents and vasodilators.
Patent CA-1192075-A (CA)
Inventor: SMITH DONALD P
IPC: A23L5/10
Filed: 1983-01-21
Granted: 1985-08-20
Abstract: ABSTRACT OF THE DISCLOSURE         Apparatus for imparting thermal energy to or removing thermal energy from a food product, said apparatus comprising intensive and semi-intensive thermal treatment sections and at least one equilibrating section.
Patent CA-1205006-A (CA)
Title: Submersible pump system
Inventor: MOHN FRANK
IPC: F04D13/10
Filed: 1983-02-18
Granted: 1986-05-27
Abstract: ABSTRACT      A submersible pump system comprises a lowermost electrically driven pump unit (4,55) providing an inlet to the system for liquid to be pumped and one or more like pumps (5,55) positioned above it and connected in series.   Electric power is supplied to the units by way of conductors within a central pipe (14) concentric with an outer cofferdam pipe (12), dielectric oil being circulated through the conductor pipe and between it and the cofferdam pipe and thus through the pump unit motors which  have hollow drive shafts (21) around the conductor pipe.   The pump stack may be located within a well casing (52), by sealing rings (62) expanded by the dielectric oil pressure, or surrounded by an outer load-bearing pipe (10).   The liquid pumped flows externally of the pump stack and the system can be constructed in separate lengths which can be readily assembled on installation.
Patent CA-1191507-A (CA)
Inventor: DOROSZ DENNIS D E
IPC: E21B10/22
Filed: 1983-02-23
Granted: 1985-08-06
Abstract: ROCK BIT CONSTRUCTION          ABSTRACT OF THE DISCLOSURE         A rotary earth boring drill is provided having a body structure with a plurality of depending cutter supporting legs having  integral  spindles extending transversely therefrom. Rotary cutter cone elements are supported by split bushings, roller bearings or a combination of the same, on appropriate bearing surfaces defined by the integral spindles.          The bushings and cutter cones define mating tapered surfaces having an interference fit that secures the bushings and cutter cone  in nonrotatable assembly.   Circular locking elements are provided in locking grooves that are defined cooperatively by the bushings and cutter cones.  End portions of the bushings extend axially beyond a planar surface defining one extremity of the cutter cone and establishes rotatable sealing engagement with an opposed planar surface defined by the depending leg structure of the bit.  This rotatable seal prevents drill cuttings, dust and other debris from entering the bearing support of the cutter cone. A circular resilient seal may also be supported by the cutter cone and may also have rotatable sealing engagement with the planar surface of the depending leg, thus providing additional sealing and protection of the bushings and bearings.
Patent CA-1194515-A (CA)
Inventor: ST LOUIS ANDRE
IPC: B62D53/08
Filed: 1983-02-28
Granted: 1985-10-01
Abstract: A B S T R A C T            A fifth wheel bearing attachment is disclosed for mounting on a tractor and avoiding the necessity of providing oil or grease to lubricate the attachment. The improvement to the attachment comprises an anti-friction polyolefin plastic sheet covering to fit over a circular fifth wheel metal bearing plate and over two sloped flanges of the fifth wheel attachment.  The plastic sheet is attached to the bearing plate and the flanges.
Patent CA-1198862-A (CA)
Inventor: HARPELL GARY A
IPC: D06M15/227
Filed: 1983-03-15
Granted: 1986-01-07
Abstract: ABSTRACT          COATED EXTENDED CHAIN POLYOLEFIN FIBER         High tenacity, high modulus ultrahigh molecular weight fibers of polyethylene or poly-propylene are coated with polyethylene, polypropylene or an ethylene and/or propylene copolymer.  The coating improves certain properties of the monofila-ment or multifilament, including adhesion to various matrices in complex composites and resistance of the fiber to fibrillation.
Patent CA-1199046-A (CA)
Inventor: BROWN RICHARD A
IPC: F16L59/16
Filed: 1983-06-13
Granted: 1986-01-07
Abstract: VACUUM SPOOL PIECE AND JOINT               Abstract of the Disclosure A joint is made from first and second vacuum spool pieces connected end to end.  Each spool piece includes an inner conduit surrounded by and spaced from an outer jacket.  Each outer jacket includes an expansion-contraction portion adjacent each end thereof.  Each end portion of each jacket has a first member in sealing con-tact with a mating second member on the inner conduit for retaining a vacuum in the annular space.  After two spool pieces are joined, the first and second members are shifted relative to one another so as to preclude any direct conductive heat leak path and permit the vacuum in the annular space of one spool piece to communicate with the vacuum in the annular space of the other spool piece.
Patent CA-1186258-A (CA)
Inventor: MUGNIER JACQUES
IPC: A01G1/04
Filed: 1983-06-20
Granted: 1985-04-30
Abstract: Provided is a method of obtaining endomycorrhizian fungi with vesicles and arbuscules in vitro. The method comprises producing dicotyledone roots which have been genetically converted by inserting genes of root inducing or tumor inducing plasmid into the genome of dicotyledone roots, and then inoculating the converted roots with endomycorrhiza spores. Application of the present method can be very useful in agriculture and horticulture.
Patent CA-1214376-A (CA)
Inventor: ANDERSON PATRICK J
IPC: F02M25/07
Filed: 1983-06-30
Granted: 1986-11-25
Abstract: ABSTRACT OF THE DISCLOSURE          Disclosed is a fluid pressure and signal controller (60) that is adapted to regulate a fluid pressure regulator (16) by means of rotation of a cam (24) in response to rotation of a shaft.  The controller is additionally provided with means for generating signals at one or more predetermined positions on the cam by movement of an output member (48) that is in contact with a profiled surface (40, 40') of a body member (38) which in turn is caused to move in response to movement of a cam follower (42) that is in contact relationship with the cam.  Means are provided such as threads (51) are provided for adjusting the rotative position positon of the body member with respect to the position of the cam follower to account for any change in the initial position of the cam member and to enable more than one of the signal generation means to be positioned at different locations about the cam.
Patent CA-1220366-A (CA)
Inventor: KRESS DIETER
IPC: B23D77/02
Filed: 1983-07-13
Granted: 1987-04-14
Abstract: Abstract of the Disclosure The operating life of the two guide members in a single bit reamer is increased by shaping the peripheral surface of the guide members with a radius of curvature less than the radius of the bore being machined.  Contact between each guide member and the bore wall takes place only along a central quest area extending in the lengthwise direction of each guide member.  This allows coating of the peripheral surfaces of the guide members with a hard, wear resistant material.  Further, the guide members may be fastened to the cutter head by means of a screw situated in a groove extending in the tangential direction along the peripheral surface of each guide member.  This increases the lubricating and cooling effect.
Patent CA-1210594-A (CA)
Inventor: BUCKL HANS
IPC: C22B3/00
Filed: 1983-08-23
Granted: 1986-09-02
Abstract: ABSTRACT         A composition containing thiolate for the removal of heavy metal ions from dilute aqueous solutions, characterized in that the composition is a sorption complex of a thiolate with two or more -SMe- groups (where-in Me represents alkali or ammonium) with a swellable silicate, whose ion exchange capacity is 5-350 milliequivalents/100 g. The composition is suspended in the aqueous medium to be purified and separated off after the absorption of the heavy metal ions from the aqueous solution. The heavy metals can be recovered in known ways.
Patent CA-1203644-A (CA)
Inventor: ZASIO JOHN J
IPC: H01L21/027
Filed: 1983-09-29
Granted: 1986-04-22
Abstract: ABSTRACT OF THE DISCLOSURE      A method and system for use with high speed automatad electron beam  systems  in  the  fabrication  of  LSI  and  VLSI  circuit  chips whereby  the  dimensions  which  define  the  physical  sizes  of  the elements that make up the circuit patterns of the chip can be easily modified to meet  the  requirements  of  different  wafer  processing facilities.  A concept of pseudo apertures is employed to define the patterns to be exposed by the electron beam system,  even though electron beam systems do not use apertures in the exposing process.          A group of shapes that may be exposed by the electron beam system are defined.  These shapes, which function as the pseudo apertures, are then layed out on a grid system, according to established lay out  rules,  in order to realize a desired circuit pattern.   Data specifying the shapes that have been combined to form each pattern are compiled in an aperture table.  The data of the aperture table are then used to generate appropriate control signals to cause the electron beam to scan the desired pattern.  Changes can readily be made to the data in  the aperature tables,  as well  as  the grid system,  thereby  changing  the  dimensions  and  orientation  of  the circuit patterns as needed.
Patent CA-1242042-A (CA)
Inventor: LATTIMER MARY B
IPC: D06M13/395
Filed: 1983-10-07
Granted: 1988-09-13
Abstract: PREPARATION OF FABRIC FOR BONDING TO RUBBER      ABSTRACT OF THE DISCLOSURE Reinforcing fabrics or cords, particularly those made from adhesive activated (AA) polyester yarn, or non-adhesive activated (non-AA) polyester yarn, or aramid yarn, maybe coated in a first of two dips in a two-step (double-dip) process, or more preferably in a single-step (single-dip) process, with an adhesive dispersion comprising a solid finely divided reversibly blocked polyisocyanate (RBP), having a majority of its primary particles smaller than 1 micron in average diameter, when the RBP is held in suspension as a substantially homogeneous dispersion with the aid of a hydrocarbyl disperser. The RBP is so held with less agitation than is required to produce a vortex in the dispersion. There is no "flaking" on the fabric after it is dried at a temperature higher than 250°F for less than about 3 minutes, and heat-set at a temperature above that at which the RBP is unblocked. Vulcanized rubber goods reinforced with the coated and cured fabric or cord, characteristically fail in cohesive rubber failure.
Patent CA-1212783-A (CA)
Inventor: BANCROFT GEORGE M
IPC: H01J37/252
Filed: 1983-10-28
Granted: 1986-10-14
Abstract: Method of Suppressing Molecular Ions in Secondary Ion Mass Spectra A method of suppressing molecular ions in the secondary ion mass spectra of conducting, semiconducting and insulating specimens is described using a commercial secondary ion microscope/mass analyzer with unconventional primary beam conditions and uncoated samples, so as to almost eliminate the contribution of molecular ions to the mass spectrum. This results in excellent discrimination for major and trace element detection in these materials, including for example complete resolution of the rare earth elements in a number of minerals. Complete elemental analysis for a much enhanced range of elements down to the ppb level is now possible. The method also facilitates the analysis of insulating materials which would undergo surface charging distortion under any other condition.
Patent CA-1198761-A (CA)
Inventor: CHAPPELL WILLIAM A
IPC: A47J41/00
Filed: 1983-11-10
Granted: 1985-12-31
Abstract: IMPROVED PERCOLATOR INCLUDING PUMP-TYPE DISPENSER          ABSTRACT           A percolator/dispenser is disclosed which includes an insulated container having a hinged lid.  A percolator heater, tube, and basket are mounted inside the container, and a manually operated pressure pump is included in the lid of the container.  This pressure pump operates to pump air from the outside of the con-tainer to the inside of the container when operated.  A normally open vent path is provided between a spout of the container and the upper portion of the interior of the container.  When the manually operated pump is operated, a vent valve is controlled to close this vent path in order to seal the container such that air intro-duced into the container by means of the pump operates to force liquid out of the spout of the container.
Patent CA-1221491-A (CA)
Inventor: COPLAN MYRON J
IPC: C08G65/48
Filed: 1983-11-21
Granted: 1987-05-05
Abstract: ABSTRACT     Sulfonation of a poly(ether sulfone) consisting of repeating units of the formula:       The process comprises providing the poly(ether sulfone) in the form of a polymer/solvent intercrystalline solid, suspended in a fluid, chlorinated hydrocarbon.  The next step includes sulfonating the solid form in the suspension.  The sulfonated poly(ether sulfones) and derivatives thereof are useful as membrane forming materials for a variety of separation processes, e.g., reverse osmisis, ultra-filtration, ion exchange and like processes.
Patent CA-1215745-A (CA)
Inventor: GIGER ADOLF J
IPC: H04B7/005
Filed: 1983-11-22
Granted: 1986-12-23
Abstract: TRANSMITTER POWER CONTROL CIRCUIT          Abstract In a radio communication system, an adaptive transmitter power control system is described wherein the signal level at each receiver is monitored and a control signal, which is a function of the signal level, is transmitted back to the transmitting station to adjust the transmitter output power, as required.  By transmitting the lowest power level consistent with system objectives, the repeater circuits operate in a highly linear mode, and cochannel interference is significantly reduced.