baber/WOPTO huggingface dataset:
Patent CA-1126532-A (CA)
Inventor: POPHILLAT LUCIEN J P
IPC: G02B6/00
Filed: 1980-02-28
Granted: 1982-06-29
Abstract: ABSTRACT OF THE DISCLOSURE:           The transfer modulation measuring system is made up of an adjustable multifrequency generator, a laser emission circuit, an optical detector and a spectrum analyzer.  The generator includes oscillators at predetermined frequencies belonging to a discrete frequency distribution.  Component signals at selected predetermined frequencies may be time-division multiplexed of frequency-division multiplexed into an electrical composite signal which modulates the laser emission.          The system comprises also two optical fiber connectors and a so-called priming optical fiber which excits uniformly the propagation modes at the entrance end of the optical fiber to be measured.  During a calibration phase, the connectors are jointed end-to-end and aligned optically.  The spectral lines at predetermined frequencies are successively adjusted to a same predetermined level on the screen of the spectrum analyzer by means of potentiometers adjusting the amplitudes of the component signals.  These adjustements contribute the transfer function of the optical fiber to be displayed direct-ly on the screen of the spectrum analyzer during the measure-ment phase for which the optical fiber to be measured is connected between the two connectors.  The modulated light signal crossing the optical fiber arises from the modulation of the selected time-multiplexed or simultaneously mixed frequencies.
Patent CA-1132141-A (CA)
Title: Process for producing a substantially sulphur-free,  butene-1 rich stream
Inventor: HARRIS NORMAN
IPC: C07C11/08
Filed: 1980-03-20
Granted: 1982-09-21
Abstract: ABSTRACT     A process is disclosed for producing a substantially sulphur-free, butene-l rich stream from a butene-containing C4 hydrocarbon feed stream by passage through a desulphurization zone, e.g. successive beds of active alumina and zinc oxide, and then distilling it.  The desulphurization zone adsorbs, absorb  or converts to higher boiling sulphurous compounds low boiling sulphurous impurities such as H2S, COS and CH3SH.  A sulphur-free butene-l rich stream is recovered overhead from the distillation zone, whilst a butene-2 rich stream containing higher boiling sulphurous impurities originally present or produced in the desulphurization zone is recovered as a bottom product.  A dechlorination zone (containing, for example, a charge of copper impregnated active carbon) can be provided upstream or downstream from the desulphurization zone but upstream from the distillation zone or can be provided in the path of the butene-l rich stream from the distillation zone. The butene-l rich product is suitable for use as a hydroformylation feedstock.
Patent CA-1127689-A (CA)
Inventor: MEKOSH GEORGE JR
IPC: B60T8/46
Filed: 1980-03-26
Granted: 1982-07-13
Abstract: ABSTRACT OF THE DISCLOSURE An anti-lock system in a vehicle includes a valve system having normally closed valves responsive to the speed of the wheel of the vehicle. Pressure within the valve system controls the application of the braking pressure.  Normal braking pressure is applied during normal deceleration of the vehicle.  The valves open to release the pressure in the valve system to prevent braking during excessive deceleration of the vehicle.  Time delay means render ineffective the valve system when the pressure therein drops and remains below a predetermined level for a predetermined time interval to thereby permit normal braking to be resumed.
Patent CA-1145351-A (CA)
Inventor: NAYLOR ARTHUR J
IPC: C09D7/45
Filed: 1980-04-03
Granted: 1983-04-26
Abstract: PV. 30734 ABSTRACT   PIGMENT DISPERSANTS, PIGMENT CONCENTRATES AND THEIR USE ? AQUEOUS COATING COMPOSITIONS AND PRINTING ?.            A polymeric water-dispersible pigment dispersant is prepared by interacting at a temperature not greater than 150°C. (a)        a carboxylic acid of structure (R1)(R2)(R3) C.COOH            wherein R1 & R2 =CnH2nX, the same or different and wherein n = 1-8 and X is a group reactive with an isocyanate group, and wherein R3 = C1-8 alkyl, (b)        An aliphatic polyol, and (c)        a di- or tri-isocyanate.            Preferably the dispersant comprises a C8-20 aliphatic hydrocarbon moiety.            The dispersant, which is used in the preparations of pigment concentrates, pigmented aqueous coating compositions and printing inks, is of improved hydrolytic stability and minimises pigment leaching under humid conditions.
Patent CA-1102193-A (CA)
Title: Solar energy collection apparatus
Inventor: BIERINGER ROBERT J
IPC: F24J2/14
Filed: 1980-04-08
Granted: 1981-06-02
Abstract: ABSTRACT OF THE DISCLOSURE    An evacuated, double wall, tubular solar energy collector having a concave, specular reflecting surface corresponding to a segment of a cylinder positioned at the opposite side of the collector tube from the sun.          The reflector is detachably connected to the tube and the tube is engaged by raised spacing points on the reflector to provide the proper spaced relation between them and allow for water drainage along the reflector.          Plural units of the collector tube and cylindrically-shaped reflector combination are supported along oppo-site sides of an elongated manifold for circulation of an energy absorbing media through them.  This system improves the efficiency of total energy collection without tracking the sun or focusing the reflected radiation.  The tubes are no more than three diameters apart and the cylindrical reflector has its focal line within the absorbing area of the collector tube.  The radius of curvature of the reflector surface exceeds the radius of the tube and is defined as a function Or the tube diameter and tube spacing.
Patent CA-1137875-A (CA)
Inventor: PEGG KEITH J S
IPC: A61Q5/12
Filed: 1980-04-16
Granted: 1982-12-21
Abstract: ABSTRACT           This invention is directed to production of a conditioning preparation more particularly for application to the human scalp with the object of promoting hair growth or at least minimising the loss of hair.  The invention generally provides a variety of suitable base materials to which are added the active ingredients which in essence comprise vitamin 'E' oil and almond oil.  To those mixtures may be additionally added commonly known herbal preparations which have suitable properties to enhance the object of the invention.
Patent CA-1138007-A (CA)
Inventor: OLIVIERI ICARO
IPC: A63C3/12
Filed: 1980-05-14
Granted: 1982-12-21
Abstract: Abstract of the Disclosure A skate guard having a protective member and a holding member.  The protective member has a longitudinal slot on one side for receiving a skate blade and a plurality of recesses on the opposite side.  The holding member has means for snapping into any one recess to detachably connect the holding member to the protective member.
Patent CA-1118257-A (CA)
Inventor: SKAUGEN BORGEIR
IPC: D21F7/00
Filed: 1980-05-20
Granted: 1982-02-16
Abstract: ABSTRACT OF THE DISCLOSURE            Beam means are provided for facilitating stringing of a forming belt into position with respect to the machine frame. The beam means are supported to be moved transversely from an inactive position generally rearwardly relative to the frame into a position under the front side of the frame for lifting the front side of the frame sufficiently to permit removal of supporting means under the front side of the frame for clearing a lateral passage for the lower run of the forming belt when stringing the belt into the operative position.     -i-
Patent CA-1152803-A (CA)
Inventor: HAWES RICHARD J
IPC: A01B3/426
Filed: 1980-08-05
Granted: 1983-08-30
Abstract: ABSTRACT REVERSIBLE PLOUGH         A reversible plough has a headstock formed from upper and lower parts (7,3) hingedly connected about a transverse axis (9), the reversing spindle (17) being mounted in the lower headstock part (3) and carrying a crank arm (21) connected by a link (23) to the upper headstock part (7).  As the reversing spindle is rotated, relative hinging movement between the two headstock parts causes the reversing spindle to tilt in a vertical plane, the load in said link (23) counterbalancing to a degree the offset centre of gravity of the plough frame and reducing the torque required to reverse the plough frame.
Patent CA-1139929-A (CA)
Inventor: SAVINS JOSEPH G
IPC: E21B43/22
Filed: 1980-08-08
Granted: 1983-01-25
Abstract: Abstract of the Disclosure Waterflooding process for the recovery of oil from a subterranean formation in which at least a portion of the injected water is thickened by the addition of a mixture of sulfonated polyethoxylated aliphatic alcohol surfactants.          The thickened water has a salinity within the range of 5-18 percent.  The mixture of sulfonated polyethoxylated aliphatic alcohols has an HLB within the range of 10.0-14.0 and the lipophilic base of the surfactant mixture contains an average of from 16 to 20 carbon atoms,  The surfactant mixture increases the viscosity of the water to a value greater than viscosity achieved through the addition of only one of the surfactant components.
Patent CA-1153563-A (CA)
Inventor: HAJDU FERENC
IPC: E01H1/04
Filed: 1980-09-09
Granted: 1983-09-13
Abstract: ABSTRACT OF THE DISCLOSURE                 ABSTRACT OF THE DISCLOSURE     S P EC I F I C i T I O N                   Inventor:  Ferenc    Hajdu Title:     LAWN SWEEPER            Abstract of the Disclosure An improved lawn sweeper for clearing a lawn of ac-cumlllLlted debris such as leaves, pine straw, and the like is disclosed.  The novel sweeper comprises, in the embodiment shown, an open-bottomed housing holding a rotating cylinder having a number of very strong, flexible wire cable sections bolted to the cylinder.  The ends of the wire cable sections have formed thereon a section of tubing pressed flat on the outer ends thereof.  The wire cables are mounted in pairs on the cylinder with the flat tubing sections being toed in somewhat in relation to each adja-cent pair.  The rapidly moving blades create a strong updraft to seep upaccum lated  debris with the toe in of the pressed flat tubing sections creatinga swirling action which tends to enhance the lifting of the moving air.  The ends of the wire cable sec-tions are positioned above the ground by an adjustable distance ranging from one (1) inch to three (3) inches.
Patent CA-1152569-A (CA)
Inventor: ELMS ROBERT T
IPC: G01R22/00
Filed: 1980-09-09
Granted: 1983-08-23
Abstract: 38                  48,420 ABSTRACT OF THE DISCLOSURE A  first  input  signal  representative  of  the voltage  component  is  integrated  producing  an  integral signal.  The integral signal is compared to fixed refer-ence potentials.  A second input signal representative of the time derivative of the current component is continu-ously integrated by a counter producing a signal represen-tative of the current component.  When the instantaneous magnitude of the integral signal equals a reference poten-tial the signal representative of the current component is sampled and the integral signal is reset.   Each sample value is representative of the product of the current com-ponent and the time integral of the voltage component. Successive sample values are accumulated producing total-ized values representative of energy.
Patent CA-1167530-A (CA)
Inventor: ZOBEL DONALD W
IPC: H03K7/08
Filed: 1980-10-09
Granted: 1984-05-15
Abstract: PACEMAKER WITH PULSE WIDTH    ADJUSTMENT CIRCUITRY   ABSTRACT          There is disclosed herein a cardiac pacemaker pulse generator utilizing digital circuitry for controlling the provision of cardiac stimulating pulses.  The width of the pulses is increased as the battery voltage decreases to maintain the energy of the stimulation pulse.  The pulse width of each pacemaker pulse is determined by comparing a reference signal to an incrementally increasing signal which is related to the battery voltage.
Patent CA-1139289-A (CA)
Inventor: VILEN ERIK O
IPC: E03B9/00
Filed: 1980-10-27
Granted: 1983-01-11
Abstract: ABSTRACT         A drain plug of the standpipe type embodying an elongated tubular member for affording drainage when the liquid level in a compartment is at the top of the stand-pipe, and a resilient, annular valve member mounted on the lower end portion of the standpipe for sealingly engaging a valve seat in a drain opening for preventing flow of said liquid into said drain opening around said standpipe, the valve member having an upper and lower flanged construction that is effective to guard against leakage around and damage to the drain plug if the drain plug is improperly aligned or excessive closing pressures are applied thereto.
Patent CA-1154522-A (CA)
Inventor: CAMERON LARRY E
IPC: B23Q15/12
Filed: 1980-10-29
Granted: 1983-09-27
Abstract: ABSTRACT         The controller includes a power sensing device which monitors the instantaneous power drawn by the machine and compares it with a predetermined limit level of desired power consumption.  A user programmable timer is manually accessible for loading a selected time delay period therein.          The controller provides an output capable of altering the machine operation when the machine power consumption has continuously exceeded the limit value for the selected time period.  The controller outputs may be latched or nonlatched once an overlimit condition is detected in accordance with a user selectable programmed parameter.  In an adaptive mode, the controller forces the feed rate to a programmable feed rate for a selected period of time upon initial impact be-tween the workpiece and the machine tool.  The controller then maintains a normal adaptive power level in which the feed rate response may be selectively altered as a percentage of an exponential function of the difference between the actual machine power consumption and the programmable desired adaptive power level.  Provision is made for automatically referencing the feed rate control signal to the voltage rating of the feed rate drive motor in the machine.
Patent CA-1118324-A (CA)
Title: Conveying and aligning articles to be trimmed
Inventor: JANOVICK MICHAEL
IPC: B27B25/04
Filed: 1980-12-09
Granted: 1982-02-16
Abstract: ABSTRACT          A  method and apparatuses are disclosed for making shingles. The method consists of clampingly holding a block of material to be cut and conveying such block while it is clamped along a selected path through the clamping mechanism and causing relative movement between two cutting means which are inclined relative to one another to firstly cut a shingle from the block tapering in one direction and followed by a second shingle tapering in the opposite direction.  The apparatus includes means for receiving and clampingly holding blocks as they are fed in sequence thereto and means to feed the block while it is clamped.  The block is fed into the path of two cutting mechanisms and upon relative movment of the clamped block and the cutting mechanisms, the first cutting mechanism cuts first one shingle tapering in one direction and the second mechanism thence cuts a second shingle from the block tapering in an opposite direction, the cutting mechanisms being inclined relative to one another providing the appropriate taper for the shingles cut thereby from the block.  The block clamping and feed mechanism includes two power driven spaced apart conveyors inclined in a direction toward one another in the direction of feed, progressively applying increased clamping forces to the block as it is moved therethrough toward the cutting mechanism.  The conveyors each have a plurality of driven rollers disposed parallel to one another and are driven in synchronism, moving the block incrementally in amounts corres-ponding to the thickness of shingle desired.  The cut shingles are conveyed to an edge trimming apparatus and are moved by conveying means through at least one trimming station having cutting means for trimming the edges of the shingle.  Upstream of the cutting means there is located a scanner that provides information to a computer that processes the information and actuates movement of the trimming saws to trim the edges of the shingle minimizing the amount of waste for each shingle.  Defect cutting devices are also provided for removing defects in shingles and they too are controlled by information provided by the computer.
Patent CA-1158201-A (CA)
Inventor: AICHINGER DIETMAR
IPC: B67B3/22
Filed: 1981-01-30
Granted: 1983-12-06
Abstract: ABSTRACT OF THE DISCLOSURE      In a method of closing a container having an external screw thread with a cap having an internal thread, the cap is located on the container in a pre-positioning angular position corresponding to its final angular position and is then pressed into final closed position by axial force.  The cap is located in the pre-positioning position by resilient abutments (such as an internal  seal,  head  seal,  or projections on the cap) which are overcome by the pressing force.
Patent CA-1154432-A (CA)
Title: Procede et installation de rechauffement d'un fluide  froid
Inventor: GAUTHIER PIERRE
IPC: F28D3/00
Filed: 1981-02-20
Granted: 1983-09-27
Abstract: L'invention concerne le réchauffage d'un fluide froid par échange thermique avec un liquide chaud, généralement de l'eau. Le fluide froid circule d'abord dans un tube descendant puis dans un tube ascendant, tandis que l'eau ruisselle le long des tubes depuis une réserve d'alimentation supérieure jusqu'à un collecteur de fond. Application notamment au réchauffement et à la revaporisation de gaz naturel liquéfié.
Patent CA-1155882-A (CA)
Inventor: ILER EDWIN A
IPC: A63C7/08
Filed: 1981-03-02
Granted: 1983-10-25
Abstract: ABSTRACT OF THE DISCLOSURE     A ski attachment particularly suited for use when climbing uphill is disclosed.  The attachment is comprised of a base member which is secured near the rear end of a ski and a blade member pivotally mounted on the base member, which blade member is adapted to be disposed in its operative position rearwardly downwardly of the end of the ski to penetrate snow and/or ice on which the skier traverses and thereby to provide for temporary anchoring or braking to prevent back sliding of the skier.  The blade member is re-leasable from the anchoring position by forward movement of the ski.
Patent CA-1156788-A (CA)
Inventor: SUGIO AKITOSHI
IPC: C08L51/02
Filed: 1981-03-09
Granted: 1983-11-08
Abstract: ABSTRACT OF THE DISCLOSURE The invention relates to a polyphenylene ether resin composition having improved heat stability.  The composition comprises a polyphenylene ether resin matrix, and dispersed therein, a diphosphonite of the formula   wherein R1 groups are identical or different and each represents a linear or branched alkyl group having 1 to 10 carbon atoms.
Patent CA-1147742-A (CA)
Title: Process for the production of tertiary 2-  haloacetamides
Inventor: CHUPP JOHN P
IPC: C07C235/02
Filed: 1981-03-18
Granted: 1983-06-07
Abstract: Abstract of the Disclosure The disclosure herein relates to a novel process for producing tertiary 2-haloacetamides by reacting primary or secondary 2-haloacetamides with an agent capable of generating an anion of the primary or secondary 2-halo-acetamide under base conditions and alkylating the anion of the 2-haloamide with an alkylating agent; said anion is generated, for example, by electrolysis or by alkali metal hydrides, fluorides, oxides, hydroxides, carbonates, phosphates, or alkoxides.
Patent CA-1164386-A (CA)
Inventor: SWANSON ROLLAN
IPC: C10J3/02
Filed: 1981-04-14
Granted: 1984-03-27
Abstract: ABSTRACT           A process for hydrotreating carbonaceous materials is disclosed in which the carbonaceous material is contacted with steam and with empirical hydrates of alkali metal hydro-sulfides, monosulfides, or polysulfides to hydrocrack, hydrogenate, denitrogenate, demetallize and/or desulfurize the carbonaceous material, hydrogen sulfide optionally being co-fed to the reaction zone.
Patent CA-1140099-A (CA)
Inventor: SLUSARCZYK CHARLES J
IPC: B64C1/16
Filed: 1981-04-21
Granted: 1983-01-25
Abstract: POWERED HANG GLIDER WITH REDUCTION DRIVE     ABSTRACT OF THE DISCLOSURE        A foot-launched and foot-landed hang glider is powered by an internal combustion two-cycle engine drivingly connected through a reduct-ion-drive unit to a large relatively slow-moving propeller. A reduction mount, so referred to because it couples the reduction-drive unit closely to the engine, allows the engine to rotate a large propeller relatively showly, thus providing more thrust at near-stalling flight conditions. The hand glider, thus powered, also obviates the necessity of being launched from the edge of a precipice and permits flight which is not predicated on the fortuitous selection of favorable air currents.
Patent CA-1176452-A (CA)
Inventor: FOUTS ROBERT W JR
IPC: H01B1/24
Filed: 1981-04-21
Granted: 1984-10-23
Abstract: ABSTRACT OF THE DISCLOSURE          The invention relates to electrical devices embodying conductive polymer compositions.  The compositions have improved electrical stability and comprise a crystalline polymer component and a filler component which has a total surface area of at least 1800 m2 per 100 cc. of composition and which comprises carbon black and a non-conductive particulate filler, each present in amount of at least 4% by volume of the composition.  The compositions may have PTC, ZTC or NTC resistivity/temperature characteristics.  Useful electrical devices according to the invention include heaters, circuit control devices and temperature sensors.
Patent CA-1174015-A (CA)
Inventor: VALLEE ANTOINE
IPC: D21H13/40
Filed: 1981-04-28
Granted: 1984-09-11
Abstract: IN THE    CANADIAN     PATENT & TRADEMARK OFFICE            PATENT APPLICATION entitled: Material in sheet form, convertible into a finished product by moulding-stamping or heat-shaping, comprising reinforcing fibres and a thermoplastics resin in powder form, and process for preparing said material in the names of: Antoine Vallée Henri Cortinchi assigned to: Arjomari-Prioux ABSTRACT OF THE DISCLOSURE              The present invention relates to a material in sheet form, used in a process of moulding-stamping or heat-forming involving melting of the thermoplastics resin contained in said material, said material in sheet form being prepared by the papermaking technique and comprising from 20 to 95% of reinforcing fibres and from 80 to 5% of thermoplastics resin in powder form forming the basic mixture and, with respect to this mixture, from 5 to 25% of a polyolefin pulp, from 5 to 30% of a binding agent and from 0. 2 to 10% of at least one flocculating agent. The invention also relates to the process for preparing said material in sheet form.
Patent CA-1159185-A (CA)
Inventor: GRIGO ULRICH
IPC: C08L51/00
Filed: 1981-05-15
Granted: 1983-12-20
Abstract: "Elastomeric thermoplastic moulding compositions"                 ABSTRACT OF THE DISCLOSURE      Moulding compositions comprising polyamides and (meth)acrylate grafted optionally substituted poly-butadienes.     Le A 20 303
Patent CA-1155159-A (CA)
Inventor: PANARO ROBERT J
IPC: H01H85/055
Filed: 1981-05-19
Granted: 1983-10-11
Abstract: STRESS RELIEVING WELD JOINT FOR COMPOSITE FUSIBLE ELEMENT           Abstract of Disclosure A welded composite fusible element utilizing weld joints, or welded hinges, to interconnect the component parts of it.  The above referred-to weld joints or hinges interconnect portions of a fusible element which are fragile and easily damaged with portions of the fusible element which are rugged and which involve little or no danger of damage in the process of assembly.  The function of stress relieving hinges or weld joints according to this invention is to protect the delicate component of the composite fusible element.