baber/WOPTO huggingface dataset:
Patent CA-1050013-A (CA)
Inventor: LINDBERG JARL J
IPC: C08G75/02
Filed: 1975-02-20
Granted: 1979-03-06
Abstract: ABSTRACT OF THE DISCLOSURE      The invention relates to a three-dimensional, aromatic, sulfur-containing polymer of great molecular size and based on lignin, and to a method for manufacturing this polymer. The polymer is characterized in that it is amorphous, practic-ally insoluble in water and conventional organic solvents; it contains thioether bonds and possibly sulfoxide and/or sulfone groups formed by oxidizing of thioether bonds, and possibly carbon-carbon bonds between aromatic rings and/or side chains and possibly other bonds typical to lignin.  Its thermostability is at least 200°C; and it has been obtained from lignin which is dissolved or undissolved, chlorinated or unchlorinated, purified or containing other components of spent pulp liquor, by heating at about 160 - 350°C, preferably in an atmosphere substantially of nitrogen and/or water vapor, for a time sufficient to form the polymer, with sulfur and/or inorganic or organic sulfur compound so that degradation products of lignin, containing aromatic rings, or corresponding aromatic compounds, with an activating substituent, or fillers have possibly been added.  The polymers are useful as replacements for poly(phenoline sulfide)polymers and plastics made of synthetic compounds.
Patent CA-1068535-A (CA)
Inventor: WILKINSON MICHAEL L
IPC: A23K1/10
Filed: 1975-04-03
Granted: 1979-12-25
Abstract: A B S T R A C T This invention relates to a soft-moist animal diet feed having 15 to 18% water, 5 to 15% fat, 36 to 51% carbohydrates and 16 to 26% protein in which the following amino acids are present in the following amounts as expressed in parts by weight:-  The animal feeds of this invention are indicated for use in animals prone to kidney diseases in which the maintenance of low urea levels in the blood is particularly important.  Thus these animal feeds can be used for the food supply of a dog prone to nephritis, and possess especially desirable proper-ties as diet feeds suitable for feeding dogs ad libitum.
Patent CA-1063698-A (CA)
Inventor: GEE THOMAS A
IPC: G01P3/488
Filed: 1975-04-03
Granted: 1979-10-02
Abstract: ABSTRACT OF THE DISCLOSURE       A rotation indication system having an improved sensing device for determining the velocity of a rotating body is disclosed. The improved sensing device is tubular in configuration and includes a source of magnetic flux and two pole pieces that define a split magnetic field.          The sensing device is mounted in close proximity to a rotor which is connected to the rotating body. The rotor has apertures which interrupt the split magnetic field producing an output signal with a frequency proportional to the velocity of the rotating body. The sensing device is oriented relative to the rotor apertures so that each pole piece is alternatively in register with an aperture to produce the desired output signal. Since the sensing device is tubular in shape, it can be rotated about its axis to obtain the desired orientation with the rotor apertures, thus permitting the use of the sensing device with a wide range of rotor diameters having various aperture spacings.
Patent CA-1052885-A (CA)
Inventor: BRUCK GERNOT K
IPC: G01N21/87
Filed: 1975-09-15
Granted: 1979-04-17
Abstract: ABSTRACT            A process and apparatus for detecting occlusions in precious stones in which the stone is scanned with light from a laser.  The stone is immersed in a liquid of the same refractive index as the stone so that there is no reflection from the outer surfaces of the stone, so that the shape of the stone does not affect the process.
Patent CA-1038980-A (CA)
Inventor: WATKINS ARTHUR G
IPC: H04M1/677
Filed: 1975-11-05
Granted: 1978-09-19
Abstract: ABSTRACT OF THE DISCLOSURE:      In areas utilizing telephone switching equipment that will only accept dial pulses, a conversion unit, that fits into the space formerly occupied by the dialing mechanism in a standard telephone subscriber's unit, provides touch-pad dialing.  The conversion unit accepts input signals, representing digits, from a standard 3 x 4 matrix touch-pad at an asynchronous rate and starts out-pulsing at the required pulse repetition rate as soon as the first digit signal is received.  During each touch-pad button depression, an audio tone is supplied to the subscriber unit earpiece.  The conversion unit provides for programmable toll restriction that permits selective prohibition of out-pulsing at each subscriber unit.  At the instant a restricted input signal is received, the conversion unit provides a steady audio tone to the earpiece and stops out-pulsing.  To prevent hookswitch dialing, the conversion unit extends the break period of the electronic pulsing switch.  The entire conversion unit is powered by the DC voltage on the C.O. line with negligible transmission attenuation.
Patent CA-1075687-A (CA)
Inventor: CHAKRABARTI JIBAN K
IPC: A61K31/55
Filed: 1975-11-20
Granted: 1980-04-15
Abstract: ABSTRACT Thieno[1,5]benzodiazepines having useful CNS activity containing the novel tricyclic ring system :     the 10-position being substituted by an amino, preferably a piperazino, group.
Patent CA-1049624-A (CA)
Inventor: TOTH TIBOR E
IPC: B23K25/00
Filed: 1975-12-15
Granted: 1979-02-27
Abstract: ELECTROSLAG VERTICAL WELDING SPEED CONTROL     ABSTRACT           An improved vertical electroslag welding system wherein the driving motor which propels the molding shoes is controlled by varying its speed in response to electrode current thereby assuring a molten puddle which for any set speed will not rise over the cavity wall or become too fluid.  The motor is remotely controlled by a control circuit which is arranged so that the welding current is not directly coupled to the circuit.  The control circuit includes, for example, an operational amplifier having its input connected across a shunt resistor for sensing the magnitude of the welding current, a pulse transformer having input and output windings and a relaxation oscillator having an output connected in series with the input winding of the pulse transformer and the output of the operational amplifier.  Any change in the welding current produces a corresponding change in the alternating signal at the output winding of the pulse transformer.  This signal is rectified to produce a DC control signal which is then fed to the motor governor.
Patent CA-1073879-A (CA)
Inventor: EDWARDS STANLEY H JR
IPC: H01H9/16
Filed: 1976-03-19
Granted: 1980-03-18
Abstract: Cover Assembly for an Electrical Switch Abstract of the Disclosure A removable cover assembly is provided for an electrical switch. The assembly includes a casing having an apertured panel, on the interior surface of which are mounted an illuminating means and elongated contact means, the latter making electrical contact with conductors of the switch when the cover assembly and the switch are in assembled relation. A lens piece is accommodated in the panel aperture and the illuminating means is secured to the portion of the lens piece adjacent the panel interior surface.
Patent CA-1061377-A (CA)
Inventor: SCOUTTEN ROBERT J
IPC: A63D15/00
Filed: 1976-03-24
Granted: 1979-08-28
Abstract: ABSTRACT OF THE DISCLOSURE A billiard training device (e.g., for games of pool, snooker or billiards) for simultaneously providing a visual indication of desired point of aim for the cue ball and desired point of contact with an object ball, to propel the latter in a predetermined desired direction. The device can be unitary in construction, with a rela-tively flat indicator surface at substantially one half the height of the cue ball.  The indicator surface can also be of the same diameter as the cue ball, and can be provided with indicia to locate both the desired point of contact on the object ball and desired point of aim for the cue ball.  In use, the device is positioned immedi-ately adjacent an object ball to indicate both the desir-ed point of contact and point of aim.  Through repeated use in practice, a player can learn both the "feel" and principle of correct aim, and thus perfect his playing ability.  to facilitate visual training, the device can also be constructed of transparent material.
Patent CA-1089159-A (CA)
Inventor: CUNTZE ULRICH
IPC: D06M13/02
Filed: 1976-04-23
Granted: 1980-11-11
Abstract: HEAT-RESISTANT FIBER CONDITIONING AGENTS Abstract of the disclosure: A process for the conditioning of synthetic fibers, which comprises applying onto these fibers mixtures of alkane-phosphonic acid salts and alkane-phosphonic acid-semi-ester salts in a molar ratio of from 19:1 to 5:1.
Patent CA-1055827-A (CA)
Inventor: BOILEAU JACQUES
IPC: B60C11/01
Filed: 1976-06-09
Granted: 1979-06-05
Abstract: ABSTRACT OF THE DISCLOSURE      A tire of elastic material which is at least partially without reinforcement is formed of a tread with a shoulder on both sides thereof, each shoulder being extended by a sidewall which terminates in a bead.  In accordance with the invention, the shoulders are formed by a zone whose longitudinal deforma-tions, for a crushing of the tire of between 0% and 30% of the height of the tire on the rim, are substantially equal to the radial deformations of said zone, the tire being mounted on a rim and inflated.
Patent CA-1036355-A (CA)
Inventor: SOUZA ANTHONY J
IPC: A01M23/30
Filed: 1976-06-15
Granted: 1978-08-15
Abstract: ABSTRACT OF THE DISCLOSURE        An animal trap, particularly a mouse trap or the like, in combination with a package therefor wherein the trap is normally urged into a collapsible container forming part of the package, such as a paper bag, by a resilient means in the form of a rubber band or the like, with a limited stop means being provided to temporarily maintain the trap outside the container until an animal triggers the trap at which time the impact causes the trap to jump the stop and be withdrawn into the container.     The trap and the trapped animal are thus encased by the package and can be disposed of without contact by the user.
Patent CA-1039083-A (CA)
Inventor: FUKUI KIYOZUMI
IPC: B62D55/125
Filed: 1976-06-23
Granted: 1978-09-26
Abstract: REDUCTION GEAR DRIVING MECHANISM                 Abstract of the Disclosure A reduction gear driving mechanism comprises an input sun gear meshing with planet gears; and an output shaft of a motor detachably inserted into said input sun gear to enable said input sun gear to be radially movable to a very small de-gree, whereby said planet gears are allowed to effect a very small eccentric revolutional motion when the torque of the motor output shaft is transmitted to said input sun gear.
Patent CA-1053462-A (CA)
Inventor: CARROLL RICHARD F
IPC: B01F11/00
Filed: 1976-07-06
Granted: 1979-05-01
Abstract: ABSTRACT OF THE DISCLOSURE         An insertable and reversible rabble tooth for the rabble arms of furnaces including specially shaped wedges to clamp the rabble teeth to the rabble arm in either in hearth condition or in out hearth condition by reversing the positions of the wedges and reversing the positions of the teeth held by the wedges.
Patent CA-1073966-A (CA)
Inventor: GRINSHTEIN VLADIMIR Y
IPC: H02B1/20
Filed: 1976-07-16
Granted: 1980-03-18
Abstract: ABSTRACT OF THE DISCLOSURE      A high-voltage open bus-and-switch structure is proposed the primary circuit of which comprises pieces of commutation and protection electrical equipment mounted on supports that carry also troughs with secondary circuit cables of the bus--and-switch structure and cables for internal needs thereof, the cables being arranged along the bases of the troughs and protected with covers that serve to secure the troughs to the supports.  The bases of the troughs are designed as cross-pie-ces the ends of which are detachable joined to the covers in the immediate vicinity to and along the edges thereof.  The bases are located above the ground at a height level ensuring for the maintenance personnel the possibility to move easily withint the planned site and to overhaul said cables right from this site.
Patent CA-1063954-A (CA)
Inventor: OKAMOTO ROKURO
IPC: C12P19/62
Filed: 1976-07-30
Granted: 1979-10-09
Abstract: ABSTRACT OF THE DISCLOSURE:           A new process for producing acylated derivatives of macrolide antibiotics, including new derivatives of tylosin, angolamycin and spiramycin, and the acid addition salts thereof by biochemical acylation of at least one of 3- and 4"-positions of 16-membered macrolide antibiotics, which comprises the biochemical reaction using the microorganisms in the genus Streptomyces selected for their newly-found ability for the said acylation and the recovery of the derivatives from the reaction mixture by conventional methods for recovering macrolide antibiotics.
Patent CA-1055083-A (CA)
Inventor: LESSIG WILLIAM R III
IPC: A01D69/02
Filed: 1976-08-03
Granted: 1979-05-22
Abstract: ABSTRACT OF THE DISCLOSURE        A safety switch for a cordless electric device such as a lawnmower or other gardening tool. The device includes a cutting or working implement such as a rotating blade, an electric motor, a battery power supply and an electric switch for connecting the battery to the motor. To prevent accidental operation of the device, a switch control lever is provided which requires two separate and independent motions to be made before the switch can be activated. A switch enclosure is provided which receives the switch operating lever in a close fitting manner. Means are provided for permitting move-ment of the operating lever to a position external of the housing; from this position, it can be grasped and moved to the switch-actuation position by a separate motion. The means permitting move-ment of the lever may comprise, for example, an access opening in the housing which is separate from the opening in which the lever rests or it may comprise an independent lever-operating member.
Patent CA-1054929-A (CA)
Inventor: RIDLEY RICHARD D
IPC: E21B43/24
Filed: 1976-08-09
Granted: 1979-05-22
Abstract: BE IT KNOWN THAT  RICHARD D. RIDLEY  of 2224 North First Avenue, Grand Junction, Colorado, United States of America, having made an invention entitled:     "In situ recovery of shale oil"     the following disclosure contains a correct and full description of the invention and of the best mode known to the inventor of taking advantage of the same.     ABSTRACT     An in situ oil shale retort is formed in a subterranean oil shale deposit by excavating one or more columnar voids each having at least one upright planar free face, drilling blasting holes adjacent to the columnar void and parallel to the free faces, loading the blasting holes with explosive, and detonating the explosive in a single round to expand the shale adjacent to the columnar void one directionally toward the or each free face in a layer or in a plurality of layers severed in a sequence progressing away from the free face, to fill with fragmented oil shale the columnar void and the space in the in situ retort originally occupied by the expanded shale prior to its expansion.   The free face(s) extend across the entire width (or length) of the retort being formed.   A workroom having a horizontal floor plan that coincides approximately, with the horizontal cross-section of the retort to be formed is preferably excavated so as to intersect the columnar void, the blasting holes being drilled and loaded with explosive from the workroom.
Patent CA-1061540-A (CA)
Inventor: CORBETT ANDREW N
IPC: G01B5/02
Filed: 1976-08-20
Granted: 1979-09-04
Abstract: ABSTRACT OF DISCLOSURE     The invention relates to a gauge for use in endodontics to enable an operator to select, measure and handle various reamers files, paper points, gutta percha points and silver points used in endodontics with a maximum of ease.  The gauge has a series of channels each provided with a measuring gauge and an adjustable stop to facilitate measuring and a gap adjacent one end of the channels to facilitate picking up of the reamers, files and points.
Patent CA-1055979-A (CA)
Title: Athletic playing surface with granular material between pile elements
Inventor: HAAS FREDERICK T JR
IPC: E01C13/00
Filed: 1976-11-16
Granted: 1979-06-05
Abstract: TITLE OF THE INVENTION          PLAYING SURFACE FOR ATHLETIC GAMES          INVENTOR          FREDERICK T. HAAS, JR.          ABSTRACT OF THE DISCLOSURE       A playing surface for athletic games, such as tennis, comprising a flat, firm subsurface, a pile fabric disposed on the subsurface com-prising a relatively flexible, moisture-impermeable backing and normally generally upstanding pile elements resembling grass, a compacted layer of granular mineral material disposed among the pile elements on the backing to a depth from about 75% to substantially equal to the length of the pile elements, the mineral layer comprising less than 10% clay and further comprising a quantity of moisture retaining material suf-ficient to maintain the moisture content of the mineral layer above about 3% by weight under normal climatic conditions.
Patent CA-1090860-A (CA)
Inventor: HUGHES DOUGLAS B
IPC: E03B7/14
Filed: 1977-01-10
Granted: 1980-12-02
Abstract: ABSTRACT OF THE DISCLOSURE     Apparatus for heating pipes and particularly for thawing frozen pipes is disclosed.  The apparatus may be a self contained trailer having a generator and step-down transformer. One pair of terminals is connected to the secondary of the transformer and a pair of bus bars is also connected across the secondary.  A current transformer operates a warning system indicating that the current to the first terminals is above a maximum value. This warns the operator that another pair of cables is necessary to heat effectively the pipe.
Patent CA-1068287-A (CA)
Inventor: MAGGIONI PAOLO
IPC: B01J31/00
Filed: 1977-01-31
Granted: 1979-12-18
Abstract: ABSTRACT     A process for preparing aromatic methylene-dioxy compounds by methylenation of aromatic ortho-dihydroxy compounds, wherein aromatic ortho-dihydroxy compounds, of formula   in which R, which substitutes 1 to 3 positions in the benzene ring, may be an alkyl with 1 to 4 C atoms, an aldehyde, carboxyl, or alkoxy group with 1 to 4 C atoms, halogen or a nitro group, are reacted with methylene chloride in a concentrated aqueous solution, in the presence of particular ammonium, phosphonium or arsonium salts as catalysts, chosen from the group consisting of: a) quaternary ammonium salts of formula              Br-in which R1, R2, R3, R4, the same or different, are alkyls with 2 to 8 carbon atoms. b) quaternary ammonium salts of formula              X     in which R is an alkyl of 10 to 20 carbon atoms, y= 1 to 12 X is C1 or Br. c) quaternary phosphonium or arsonium salts of formula          y-in which X = P or As, R1, R2, R3, R4, the same or different, are linear alkyl radicals of 2 to 18 C atoms, y is C1 or Br.
Patent CA-1062243-A (CA)
Title: Earth boring cutting element retention system
Inventor: DYER NORMAN D
IPC: E21B10/56
Filed: 1977-03-04
Granted: 1979-09-11
Abstract: EARTH BORING CUTTING ELEMENT RETENTION SYSTEM     Abstract of the Disclosure An earth boring apparatus includes individual cutting elements positioned within corresponding individual sockets in the cutter member body of the apparatus.  Each socket has a socket wall and each cutting element has a lower body portion with a surface that contacts the socket wall.  In one embodiment the sockets are cylindrical and a substantial portion of the lower body surfaces have a conical taper.  This provides an improved fit of the lower body surface along the length of the socket wall and reduces cutting element loss.                             -1a-
Patent CA-1071501-A (CA)
Inventor: MORGAN NORMAN D
IPC: B01D35/02
Filed: 1977-04-04
Granted: 1980-02-12
Abstract: ABSTRACT OF THE DISCLOSURE      This invention relates to solenoid-actuated valves of the type having a fluid pressure-operated diaphragm to control opening and closing of the valve, and has particu-lar reference to a new and improved self-cleaning filter assembly for filtering control fluid used to operate the diaphragm.  Solenoid-actuated valves of the type having a fluid pressure-actuated diaphragm to control opening and cloning of the valve typically include relatively small bleed passageways which are relatively easily clogged or blocked.  Various attempts have heretofore been made at solving the problem of filtering the control fluid, typic-ally by providing filters of various types at the inlet to the control fluid passageways or by providing filters in the control fluid passageways.  While this has met with some success, there still remains a problem of the filter element itself becoming clogged or blocked.  Thus, there exists a need for a filter assembly which is self-cleaning. The present invention provides a new and improved filter assembly which is self-cleaning each time the valve is opened or closed.  The self-cleaning filter assembly filters control fluid previous to its entering the small passage-ways, and comprises a filter element cleaned by a brush each time the valve is opened or closed, thereby to prevent clogging of the filter during use.
Patent CA-1039513-A (CA)
Inventor: TILLOTSON HENRY B
IPC: B21F11/00
Filed: 1977-04-12
Granted: 1978-10-03
Abstract: ABSTRACT           Cutting filament metering apparatus for a flexible filament vegetation cutting device in which a flexible filament cutting element is coiled on a filament holder rotatably driven about a substantially vertical axis with a free end of the driven filament defining a cutting plane.  The cutting filament metering apparatus includes a driver element rotatably driven about a substantially vertical axis and an engagement member carried by the filament holder for driving engagement with the driver element.     An escapement device is also secured to the filament holder and allows limited rotational movement of the holder with respect to the driver element to release a predetermined length of cutting filament.  The filament holder is axially biased into a first position in which the driver element engages the engagement device.  In one embodiment, the engagement and escapement devices are annular each having teeth circumferentially dis-posed and projecting radially inward toward the driver axis of rotation.  The driver element is provided with driving teeth circumferentially disposed and projecting radially outward from the driver axis of rotaton to alternately engage either the teeth on the engagement or escapement devices.  Additionally, in certain embodiments, a housing is provided which partially encloses the cutting plane defined by the driven cutting filament and a cutting blade is attached to the housing at the outer periphery of the cutting plane.  The cutting blade severs exces-sive flexible filament to maintain the filament length at a predetermined maximum.
Patent CA-1092053-A (CA)
Inventor: CROSBY JEFFREY N
IPC: C25D3/50
Filed: 1977-06-03
Granted: 1980-12-23
Abstract: ABSTRACT OF THE DISCLOSURE Articles are electroplated with ruthenium in a plating bath con-taining ruthenium cationic complex [Ru2N(NH3)8X2]3+.  This bath provides advantages of enabling plating in alkaline solution, where desired, and avoids the need to protect the articles against attack by acid electrolyte baths.
Patent CA-1095921-A (CA)
Inventor: BRENNAN THOMAS M
IPC: A23L27/10
Filed: 1977-06-06
Granted: 1981-02-17
Abstract: ABSTRACT OF THE DISCLOSURE           Gamma-pyrones, particularly maltol (2-methyl-3-hydr-oxy-4H-pyran-4-one) and ethyl maltol (2-ethyl-3-hydroxy-4H-pyran-4-one) are prepared by hydrolyzing certain pyran inter-mediates prepared by reacting furfuryl alcohols, particularly 1(2-furyl)-1-ethanol, in aqueous solution with a halogen-con-taining oxidant.  Novel 4-halo-dihydropyran intermediates and the preparation thereof are also disclosed.