baber/WOPTO huggingface dataset:
Patent CA-1056868-A (CA)
Inventor: REED ROBERT D
IPC: F23G7/08
Filed: 1977-02-21
Granted: 1979-06-19
Abstract: ABSTRACT OF THE DISCLOSURE      A liquid seal assembly for a gas flow system having a housing containing a water seal, a vertically directed cylindrical pipe for gas entry dipping into the water and a second smaller cylindrical pipe, coaxial with the first, also dipping below the water level.  Communication between the annulus between the first and second cylindrical pipes to the inside of the second pipe, is by means of one or a plurality of nested annular cups.  These are below the normal static water level and are thus filled with water whenever the pressure of incoming gas is below a selected value.  As the pressure of the incoming gas increases, the water level is depressed until gas can flow through the U-shaped passage of one of the annular cups.  If entering gas is not water saturated, it will pick up the water in the cup and, as flow continues, the cup then essentially becomes dry and there is no further loss of water from the bath.  When the pressure again drops below the selected level, the water level in the seal rises and floods the cups so as to provide the water seal.
Patent CA-1086777-A (CA)
Inventor: TAKEZONO TETSUYA
IPC: C07D319/12
Filed: 1977-02-25
Granted: 1980-09-30
Abstract: ABSTRACT OF THE DISCLOSURE In reactions catalyzed with a sulfonic acid-type cation exchange resin such as n reaction of obtaining an ether from an olefinically unsaturated hydrocarbon and an alcohol, a reaction of obtaining an alcohol by hydration of an olefinically unsaturated hydrocarbon, or a reaction of obtaining a polyhydric alcohol ether from an olefinically unsaturated hydrocarbon and a polyhydric alcohol, the reaction produce contaminated by free sulfonic acid or sulfuric acid ascribable to the catalyst used in the reaction is contacted with hydrotalcite thereby to remove the free sulfonic acid or sulfuric acid from it.
Patent CA-1073970-A (CA)
Inventor: HUCKER DAVID J
IPC: H02M7/49
Filed: 1977-03-02
Granted: 1980-03-18
Abstract: A DC to AC inverter in which a composite waveform synthesizing a sinusoidal waveform and having three incremental steps for each quarter cycle is formed by summing an alternating stepped waveform having three steps for each half cycle, with a square wave in phase therewith and having a frequency three times greater than the alternating stepped waveform.  In a three-phase embodiment of the inverter, each of three stages has a coil that is appropriately switched to opposite polarity terminals of a DC voltage source to form beginning and end segments of the alternating waveform, and a single square wave for all three phases is developed by three series-connected windings respectively inductively coupled with the three coils.  The single square wave is added to all three alternating stepped waveforms to form the three composite output waveforms of the inverter.
Patent CA-1075941-A (CA)
Inventor: EDWARDS MICHAEL J
IPC: G03B1/48
Filed: 1977-03-03
Granted: 1980-04-22
Abstract: ABSTRACT OF THE DISCLOSURE     In a cinematographic film projector, there is provided at the film gate an apertured pressure plate which presses the film against a film guide.  When the film is arrested in the film gate to project a stationary image formed by one film frame, heat emitted from the light source tends to buckle the film causing distortion of the image.  To overcome or reduce buckling in these circumstances, the pressure plate is provided with a transparent member extending across the aperture in the pressure plate to present to the film within the area of the aperture a film contacting surface which opposes buckling of the film within the area of the aperture.
Patent CA-1060785-A (CA)
Inventor: ALLEN JOSEPH C
IPC: E21B43/16
Filed: 1977-03-18
Granted: 1979-08-21
Abstract: RECOVERY OF OIL BY A VERTICAL MISCIBLE FLOOD    (D#73,202-F) ABSTRACT OF THE DISCLOSURE         A vertical miscible recovery process for the recovery of oil from an oil-bearing reservoir wherein a miscible slug or blanket of solvent is established at the crest of the oil column or at the gas-oil interface and thereafter is displaced downward by the injection of a drive agent such as natural gas or methane wherein the reservoir is produced simultaneously from near the bottom of the oil column and also near the top of the oil column thereby increasing the spreading rate of the solvent slug.                         -I-
Patent CA-1069567-A (CA)
Inventor: BARKAN PHILIP
IPC: H01H1/54
Filed: 1977-05-13
Granted: 1980-01-08
Abstract: ABSTRACT OF THE DISCLOSURE This electric circuit breaker contains electro-magnetic-assist means for opposing the contact-repulsion forces developed when a high current flows through the breaker.  The assist means comprises a rigid supporting member which can be restrained in a fixed position to render the assist means capable of transmitting closing force to the movable contact of the breaker but which supporting member is releasable to render said assist means generally ineffective to transmit closing force to said movable contact.  The assist means further comprises a toggle connected between the supporting member and the movable contact for imparting a closing force to the movable contact when forced toward an in-line position while said supporting member is retrained.         For forcing the toggle towards its in-line position, there is provided magnetic structure cooperating with the circuit breaker contacts.  This magnetic structure comprises a movable armature that is driven with a force varying directly with current through said conductor.  A linkage interconnects this armature and the toggle to force the toggle toward  its in-line position in response to the armature's being driven by said force.
Patent CA-1045366-A (CA)
Inventor: WICK JOHN R
IPC: B26B13/26
Filed: 1977-05-25
Granted: 1979-01-02
Abstract: RATCHET-OPERATED CABLE CUTTER             ABSTRACT OF THE DISCLOSURE      Handle-operated shear-type cable cutter with one jaw member integral with one or its handles, the other jaw mem-ber being connected with the first by a main pivot about which said other jaw member rotates.  An arcuate ratchet segment, integral with the rotatable jaw member, has ratchet teeth on a portion or its periphery remote from the cutting edge of the jaw.  It is driven by a pawl assembly comprising a U-shaped bracket, the saddle of which houses a drive pawl and the legs of which carry, at their free ends, journals which support the main pivot pin and transmit thrust to the jaw members.  A link member, pivoted at both ends, intercon-nects the operating handle with the pawl assembly.  The cut-ting edges of the jaws are shaped to define an opening within the tips as the jaws meet, which is preferably diamond-shaped, but which reduces in size as the jaws close.  A lost-motion pin-in-slot connection limits closing movement of the handles.
Patent CA-1053045-A (CA)
Inventor: TOKUNO MASATERU
IPC: D21H13/10
Filed: 1977-06-07
Granted: 1979-04-24
Abstract: Title of the Invention Multi-layer composite paper and method of producing the same Abstract of the Disclosure A method is provided for the production of a multi-layer composite paper, which comprises preparing a substrate layer comprising a cellulosic fiber and a thermoplastic resin, the proportion of which is at least 15 weight percent of the combined dry weight of said fiber and resin and an exterior layer comprised of a cellulosic fiber as formed in superimposition on at least one side of said substrate layer in a web-forming stage and pressing the resultant composite web formation under heating at a temperature not less than the softening point of said thermoplastic resin.    The multi-layer composite paper thus produced has excellent printability, writing quality and other properties.
Patent CA-1082501-A (CA)
Inventor: BIONE ANGELO A
IPC: G10H1/40
Filed: 1977-06-23
Granted: 1980-07-29
Abstract: ABSTRACT OF THE DISCLOSURE The present invention is directed to a digital touch responsive tempo generating device for use in an electronic musical instrument, preferably an electronic organ.  The instrument player selects a desired tempo to control a standard rhythm unit or other circuit either before or during playing by repetitively actuating a touch plate at a rate corresponding to the desired tempo.  A digital value related to the time interval between predetermined repetitive touches by the instrument player is stored in a digital circuit having a memory under control of a clock  circuit.  A tempo generator circuit coupled to the digital circuit produces tempo output pulses spaced apart as a function of the time interval between the repetitive touches.
Patent CA-1066884-A (CA)
Inventor: PAYTON RAYMOND A
IPC: B43L9/24
Filed: 1977-07-13
Granted: 1979-11-27
Abstract: Abstract of the Disclosure A drawing instrument which is a compass or dividers has a leg and an arm, or two legs, pivoted together at inner ends thereof, and has a bow top having fork limbs embracing the assembly of pivoted ends of the leg and arm or of the two legs, the leg and arm, or the legs, and the limbs of the bow top, having therein pivot holes receiving a pivot which pivots together the leg and arm, or the legs, and the bow top; and the bow top has locating means co-operable with the inner ends of the leg and arm, or of the legs, to prevent, during assembly of the instrument before installation of the pivot, movement of said ends towards the bow top beyond a position in which the said pivot holes in said ends and in the bow top are aligned for receiving the pivot.          There is provided a centralising member keyed in place between said inner ends of the leg and arm, or of the two legs, before installation of the pivot.  The aforesaid locating means prefer-ably comprises two pairs of shoulders disposed one pair on the inside face of, and integral with, each fork limb of the bow top, with the two shoulders of each pair being spaced apart to receive between them a respective one of the aforesaid inner ends.
Patent CA-1083458-A (CA)
Title: Moulded fibrous materials
Inventor: GREEN KIERON P
IPC: B01D39/18
Filed: 1977-07-29
Granted: 1980-08-12
Abstract: ABSTRACT OF THE DISCLOSURE         A fibrous element comprising an elongated structure having a fibrous core with the fibres arranged in random orientation.  The core is stiffened and enclosed by a fibrous crust integral with the core and formed as a surface layer of greater density.  The element is of particular value in manufacturing cigarette tips where it has the advantage over the prior art of not requiring an initial paper wrap and has good filtration and hardness.
Patent CA-1087220-A (CA)
Inventor: KARAKI TAKAO
IPC: A44B19/26
Filed: 1977-08-05
Granted: 1980-10-07
Abstract: ABSTRACT OF THE DISCLOSURE            A truck box cover comprises a cover body having an opening, a curtain secured at its leading end to the margin of the opening and coextending with the opening, and two pairs of slide fastener stringers, each pair having an inner and an outer stringer tape each carrying a fastener element row along their respective inner longitudinal edge, the inner tape being secured along the respective marginal edges of the curtain and the outer tape along the respective marginal edges of the opening.  A pair of bottom end stops are applied to the respective inner longitudinal edges of the inner and outer tapes at their trailing ends.  A slider is threaded onto each pair of stringers to couple and uncouple the same.  The slider has a lower wing and an upper wing provided with means for holding the trailing end portion of the element row carried on the inner tape.  Further, the top hood comprises means for actuating the sliders to travel forwardly and backwardly along the respective pairs of element rows for engaging and disengaging the same.
Patent CA-1092764-A (CA)
Inventor: LUPKE GERD P H
IPC: B29C49/00
Filed: 1977-09-13
Granted: 1981-01-06
Abstract: In order, in the molding of corrugated thermoplastic tubing, to overcome the disadvantage that pressurized air which is supplied to a zone within the tube of thermoplastic material as it is extruded from an extrusion head into the entrance of a tubular mold tunnel may tend to cause rupturing of the tube at the area immediately adjacent to the extrusion head where the tube is unsupported by the wall of the tubular mold tunnel the pressurized gas is supplied at a low pressure to a first zone within the tube of thermoplastic material to support the tube against the wall of the tunnel, and pressurized gas at different, successively higher pressures is supplied to second and third zones within the tube to urge the tube outwardly into the corrugations of the tubular mold tunnel. A gas leakage path between the second and third zones permits leakage from the third to the second zone, the pressure in the second zone being controlled by venting gas therefrom at a controlled rate.
Patent CA-1086700-A (CA)
Inventor: WALKER WILLIAM J
IPC: B02C18/22
Filed: 1977-09-23
Granted: 1980-09-30
Abstract: EASY ACCESS-LOW NOISE GRANULATOR            Abstract of the Disclosure A granulator construction including a cover having a first portion connected to the granulator frame along a vertical hinge line and a second portion in turn connected to the first portion along a horizontal hinge line whereby progressive opening of such cover portions along their re-spective hinges permits partially and fully open granulator positions whereby the feed means and the granulation chamber of the granulator are sequentially exposed.  Furthermore, opposed muffler segments in part defining a feed slot are separable so that access to feed rolls etc. may be quickly gained.  The lower of such muffler segments is further slidably removable entirely from the granulator construction so as to permit cleaning as when changeovers occur in the material being granulated.
Patent CA-1110731-A (CA)
Inventor: RUHL HERMANN
IPC: G01P15/00
Filed: 1977-11-18
Granted: 1981-10-13
Abstract: ABSTRACT OF THE DISCLOSURE             The specification describes an acceleration warning system for motor driven vehicles.  The system includes speed measuring apparatus providing an output to a differentiating circuit for determining the rate of change of vehicle accelera-tion, and means responsive to a predetermined output of the differentiating circuit for indicating when the acceleration of the vehicle is beyond a predetermined rate.  The system may also include control means for automatically limiting the acceleration of the vehicle.
Patent CA-1069668-A (CA)
Inventor: FOODY PATRICK
IPC: E04H7/30
Filed: 1978-03-07
Granted: 1980-01-15
Abstract: ABSTRACT OF THE DISCLOSURE            A multi-cell silo structure includes an array of vertical reinforced concrete columns.  Planar diaphragm panels of either reinforced concrete or steel extend between the columns and define the walls of the cells.  The panels are connected to the columns such that vertical loadings on the panels are transmitted laterally to the columns, such loadings thence passing down the columns to the silo foundations.
Patent CA-1255005-A (CA)
Inventor: FOTHERGILL NOEL O
IPC: G01S7/292
Filed: 1978-04-11
Granted: 1989-05-30
Abstract: NARROW BAND CORRELATOR AND NOISE CANCELLOR     ABSTRACT OF THE DISCLOSURE     A narrow band noise cancellor and signal correllator which obtains an increased signal to noise ratio of a received signal from a multi sensor array; the resulting output signal is at double the input frequency   A pair of narrow band similar input signals are added, and subtracted, and the resulting signals are multiplied together.  The positive and negative product terms of the signal are separated and the positive term inverted, and the resulting separated signals are individually added with the squared representation of one of the input signals.  The resulting added signals are summed and the sum is passed through a narrow band filter . having its center frequency at double the input frequency.     -i-
Patent CA-1074715-A (CA)
Title: Brake assembly
Inventor: WILLIAMS WILLIAM J
IPC: F16D65/14
Filed: 1978-04-26
Granted: 1980-04-01
Abstract: BRAKE ASSEMBLY                Abstract of the Disclosure A brake assembly including a pair of brake shoes having adjacent ends pivotally mounted to a support and an actuator disposed between the ends of the brake shoes.  The brake shoe webs are recessed at one end to engage a fixed anchor pin.  The recess provides an arcuate bearing surface adapted to bear against a portion of the pin and permit pivoting movement of the brake shoe about the pin as the brake is actuated and released.  The recess is also so oriented relative to the pin that the recess abuts the pin and prevents the brake shoe from moving away from the anchor pin.   The brake assembly also includes an anchor pin having axially spaced cylindrical bearing areas adapted to radially, slidably receive the open ended recesses of a dual web brake shoe and  a pair  of oppositely  facing  surfaces  extending  radially outward at axially spaced locations on the pin to abut the brake shoe webs and prevent the anchor pin from being axially displaced from the support.
Patent CA-1121605-A (CA)
Inventor: WILKOMIRSKY IGOR A E
IPC: C22B1/00
Filed: 1978-05-05
Granted: 1982-04-13
Abstract: ABSTRACT OF THE DISCLOSURE         The specification discloses a method for recovering non-ferrous metals such as zinc or copper from their concen-trates, ores or any other metal containing materials into solution containing these non-ferrous metals as sulphates and a minimal amount of dissolved iron.  The resultant solution is suited without or with minimum pre-purification treatment for conventional electrowinning processes to recover such non-ferrous metals with less difficulties than the previous methods involving complex iron-removal processing.  There is disclosed a method for recovering at least one non-ferrous metal soluble in sulphuric acid from a strong sulphuric acid solu-tion containing said metal and iron as sulphates, said method comprising the following consecutive steps:      subjecting said solution in a sub-divided form to thermal decomposition in a fluidized bed reactor at a tem-perature of from 600 to 750°C with 20-150% excess air for an average retention time of 1-12 hours to obtain calcine containing ferric oxide and the sulphate of said non-ferrous metal;      leaching said non-ferrous metal sulphate out from said calcine with water or dilute sulphuric acid solutions;      separating said leach solution containing said non-ferrous metal sulphate from the residue; and recovering said non-ferrous metal from said leach solution, via electrolysis or any other method.
Patent CA-1124695-A (CA)
Title: Piston-cylinder arrangement for a  compressor
Inventor: TANKRED HANS J
IPC: F16J1/09
Filed: 1978-05-25
Granted: 1982-06-01
Abstract: ABSTRACT OF THE DISCLOSURE           The specification describes a piston-cylinder arrangement for a compressor, wherein a piston pin passes through holes in opposed piston walls, depressions remain at the piston periphery in the vicinity of the holes, and the cylinder surrounds the piston circumferentially over its entire length.
Patent CA-1110461-A (CA)
Inventor: VALKS ROBERT K
IPC: B30B1/40
Filed: 1978-08-25
Granted: 1981-10-13
Abstract: Abstract of the Disclosure A leather press in which two wedges are synchronously driven to raise a lower platen in the press from an open condition to a position adjacent an upper platen of the press. The lower platen is movably mounted on a support. The support and the wedges are in slidable engagement with one another to effect a preliminary closing of the press. A plurality of pressurizable members such as hydraulic pancake cylinders may be mounted between the movable platen and the support so that the platens are secondarily urged together by the application of hydraulic pressure, to apply the required working pressure, to a leather workpiece disposed between the platens. The hydraulic pancake cylinders are arranged to be disposed over a broad area of the lower platen to efficiently provide maximum pressure thereacross.
Patent CA-1075017-A (CA)
Title: Using improved sorptive coal materials to remove methane gas from refuse fills and preventing the further production thereof
Inventor: JONES CYRIL T
IPC: E02D3/00
Filed: 1978-09-11
Granted: 1980-04-08
Abstract: AN  ABSTRACT  OF  THE  DISCLOSURE     The present invention concerns a method of using an improved sorptive coal material as a treatment medium in the removal of methane gases which result from the decay of organic matter in old refuse fills, and also to inhibit the further production of the gases from such refuse fills.  The method involves treating coal materials of known sorptive ability to make of them more gas sorptive and decay inhibiting treatment media, then making a coal-in-water slurry of finely ground coal and water  and thereafter injecting the coal-in-water slurry into the refuse fill through drill hole therein, and passing the slurry thoughout the refuse fill under pressure so that the improved gas sorptive coal comes into contact with any gases in the fill to adsorb them, and leave a residual coating of finely ground coal within and over the refuse organic matter which serves to inhibit the further production of gases therefrom.
Patent CA-1078024-A (CA)
Inventor: DIACK ARCHIBALD W
IPC: A61B5/04
Filed: 1978-11-29
Granted: 1980-05-20
Abstract: CARDIAC RESUSCITATOR AND   MONITORING APPARATUS     Abstract The disclosed apparatus attaches to the patient for monitoring the patient's condition and administering the correct electrical stimulation to a suspected heart attack victim as soon as possible after the occurrence of the attack and in the absence of medical personnel.  The apparatus preferably includes an oro-pharyngeal airway pro-vided with electrodes for ascertaining electrical activity of the heart.  A microphone attached to the airway, or a strain gauge applied elsewhere to the patient's body, detects bodily motion, for example respiration.  If neither substantial electrical activity nor bodily motion is detec-ted, the patient is considered to be in a cardiac arrest and a pacing impulse is applied to the patient via the aforementioned airway electrodes and/or other electrodes, while if electrical activity is ascertained in the absence of bodily motion, a defibrillating pulse is applied to the patient.
Patent CA-1109675-A (CA)
Inventor: BECKMAN JOHN T
IPC: B65H54/44
Filed: 1978-12-29
Granted: 1981-09-29
Abstract: ABSTRACT OF THE DISCLOSURE           An improved microcomputer controlled winder for attenuating a plurality of streams of molten glass issuing from a bushing into fibers and for collecting a strand of such attenuated fibers into a package.  The microcomputer controls the winder speed in accordance with error bet-ween programmed data and a winder collet speed signal from a tachometer.  The tachometer signal is modified to com-pensate for temperature variations in the bushing when a package is started after the bushing has been shut down for a period of time.
Patent CA-1124371-A (CA)
Inventor: DE ZWART MAARTEN
IPC: G02F1/137
Filed: 1979-01-11
Granted: 1982-05-25
Abstract: 11.11.1978                  1                     PHN 9021 ABSTRACT:                       Display device.                            In a liquid crystal display device which upon controlling with direct voltage shows a memory effect which can be erased by alternating voltage, the written area can expand beyond the edge of the electrode so that edge zones can no longer be erased readily. This disadvantage is avoided by covering the edges of the electrodes with an insulating layer.