baber/WOPTO huggingface dataset:
Patent CA-1134842-A (CA)
Inventor: KERSTEN HILDE
IPC: C07D301/14
Filed: 1978-11-27
Granted: 1982-11-02
Abstract: PROCESS FOR THE PREPARATION OF EPOXIES     ABSTRACT OF THE DISCLOSURE        A process for the preparation of an epoxide from an olefin having a boiling point above 40°C at pressures from 1 to 15 bar has been discovered.  The present process has the advantage that the olefin may be directly reacted with a crude peracetic acid reaction medium containing impurities such as heavy metal oxidation catalysts without the necessity of first purifying the peracetic acid.  In the process, the olefin is epoxidized by the crude reaction medium in the presence of a complexing agent for the catalyst, at a temperature from about 50 to about 150°C, at a pressure from about 1 to about 15 bar, while simultaneously dis-tilling off unreacted acetaldehyde, solvent, and acetic acid by-product, by passing an inert gas through the reaction medium.     (I)
Patent CA-1092393-A (CA)
Title: Sonic gyro
Inventor: LOPER EDWARD J JR
IPC: G01C19/5691
Filed: 1978-11-29
Granted: 1980-12-30
Abstract: SONIC GYRO A vibratory gyro including a hemispherical high Q resonator supported by an inner housing carrying a circular forcer electrode and sixteen discrete forcer electrodes. The orientation of the vibrating pattern in the resonator is electrostatically sensed by eight pickoff electrodes located on the inner spherical surface of an outer housing which establish two pickoff axes separated by 45.degree..  Signals obtained from the pickoff electrodes are utilized to develop a drive signal to the circular forcer electrode to electrostatically maintain a predetermined amplitude of pattern vibration and to develop drive signals for appropriate groups of discrete forcer electrodes to eliminate any phase error between components of the pattern along the two pickoff axes.
Patent CA-1057058-A (CA)
Inventor: MCMASTER HAROLD A
IPC: C03B27/00
Filed: 1979-01-10
Granted: 1979-06-26
Abstract: ABSTRACT OF THE DISCLOSURE          A roller hearth furnace having a plurality of horizon-tally elongated furnace modules aligned with each other in an end-to-end relationship so a roller conveyor may carry glass sheets horizontally through the furnace and thereby heat the glass prior to tempering.  Each furnace module has a hollow con-struction with a circular cross-section defined by a semicircul lower housing portion and a semicircular upper housing portion.          A separate counterbalance mechanism associated with each upper housing portion supports it independently of the others for movement between a lower closed position immediately over its associated lower housing portion and an upper open position where the interior of its associated lower housing portion is acces-sible.  The counterbalance mechanisms each include four chains attached to counterweights in a manner that permits counter-balancing of the associated upper housing portion even if one chain should break.  One chain of each counterbalance mechanism is driven by an associated reversible electric motor to raise and lower its upper housing portion, and a separate elongated operator handle extending along the length of each upper housing portion is coupled to the motor thereof so an operator can con-trol the motor operation from any position along the length of the particular furnace module.  Each upper housing portion includes end walls that mitigate heat loss when one of them is open while adjacent ones are closed.  Upper and lower end walls at each end of the furnace are reinforced to maintain horizontal openings of uniform size where glass enters and leaves the furnace.
Patent CA-1095733-A (CA)
Inventor: HERCHENBACH PAUL
IPC: F16D3/32
Filed: 1979-01-15
Granted: 1981-02-17
Abstract: HOMOKINETIC DOUBLE JOINT FOR WIDE          BENDING ANGLES     ABSTRACT OF THE DISCLOSURE     In a homokinetic double joint for effecting wide angle bending in the drive transmission line between a drive member and a driven member, such as in the combination of an agricultural tractor and driven agricultural device, a pair of outer yokes are each connected to a double inner yoke by two cross-links. A ball trunnion on each outer yoke is held within a guide member in a centering disc secured in the double inner yoke.  Each cross-link has two pair of trunnions, one pair connected into the sides of the outer yoke and the other pair connected into the sides of the double inner yoke.  The spacing between the sides of the double inner yoke in which the trunnions are positioned is greater than the spacing between the sides of the outer yokes in which the trunnions are held, thereby permit-ting wider bending angles between the drive member and the driven member.
Patent CA-1124193-A (CA)
Title: Method of processing solids containing  shales oils or tars
Inventor: SIMO THOMAS
IPC: C10G1/00
Filed: 1979-02-13
Granted: 1982-05-25
Abstract: ABSTRACT OF THE DISCLOSURE:           A method of processing solids-containing shale oils or tars which have been obtained by a dry distillation of oil shale or coal or by the gasification of coal or by the pyrolysis and extraction of tar sand, which method comprises hydrogenating, separating the solids, and a further processing by hydrogenation and distillation to produce automotive fuels.  The method of the invention is characterized in that a shale oil or tar feed-stock is hydrogenated in the sump phase at superatmospheric pressure and elevated temperature by a treatment with hydrogen in the presence of solids which consist substantially of coal, coke and inorganic components, and in the presence of naphthene-containing hydrogenated oil used as a hydrogen-transferring medium or of catalytically active solids which have been added to the feedstock, As, Sb and other elements contained in traces in the liquid phase are removed therefrom by the hydrogenation, asphaltenes and heteroatoms contained in polar compounds are decomposed at the same time to decrease the polarity of the liquid product, and the liquid product is subsequently separated from the solids.  The invention provides a simple, straight-forward process of producing motor fuel in a high yield.
Patent CA-1121441-A (CA)
Inventor: KRESGE JAMES S
IPC: H02H7/04
Filed: 1979-02-16
Granted: 1982-04-06
Abstract: ABSTRACT OF THE DISCLOSURE           Zinc oxide varistor protective devices for vapor cooled transformers are integrally located in contact with the transformer coolant liquid to provide cooling capacity to the zinc oxide materials.  The zinc oxide varistors are prevented from becoming electrically unstable by keeping the varistor operating temperature at or below the boiling point of the coolant.
Patent CA-1107620-A (CA)
Inventor: POMMIER JEAN
IPC: B60C9/20
Filed: 1979-03-09
Granted: 1981-08-25
Abstract: ABSTRACT OF THE DISCLOSURE :          A radial carcass tire with a tread reinforcement is improved due to the fact that between the radial carcass reinforcement and the tread reinforcement there is arranged a limiting block composed of two superimposed plies whose cables form an angle with the longitudinal direction which is less than the angle which the cables of the tread reinforcement form with said same direction.
Patent CA-1112676-A (CA)
Inventor: STONE ALAN M
IPC: B07C5/02
Filed: 1979-04-02
Granted: 1981-11-17
Abstract: ABSTRACT OF THE DISCLOSURE            Feed apparatus and method for feeding objects such as ore rocks in such a way that they are arranged into at least one moving stream of spaced apart objects.  The objects are fed onto a first conveyor belt  which may have longitudinal channels to arrange the objects into moving rows.  The moving objects are projected from end of the belt in free flight path and caught on downwardly moving section of a second belt which passes to a horizontal run via a concavely curved belt section so that objects are stabilized on the second belt by centrifugal action to emerge on horizontal run as one or more fast moving streams.
Patent CA-1094770-A (CA)
Inventor: SAMS MICHAEL L
IPC: E04H7/30
Filed: 1979-05-22
Granted: 1981-02-03
Abstract: WORKING BIN                 ABSTRACT OF THE DISCLOSURE           A cluster of working bin modules resembling the cells of a honeycomb is used for storing tons of particulate commodities.  This structure eliminates the need for corru-gated sheet metal walls thereby reducing the explosion hazard.          The bins share common smooth walls which are joined where they intersect by connectors which form hollow vertically-extending prisms.  After the hexagonal modules have been erected and connected, the prisms are filled with concrete to form a watertight seal between adjacent bins and to permit the prisms to support heavy equipment mounted on top of the cluster.          The hexagonal working bins are mounted on columns formed by concrete-filled vertical tubes.  Each column is attached to the foundation by a ground anchor having a structure providing high shear strength to resist earthquake damage.  Each column includes at its top a short hollow hexagonal prism; horizontal struts connect the hexagonal prisms of adjacent columns.  The lower edges of the bin walls are welded to the tops of these struts.  Hoppers welded to the struts form the bottoms of the bins.  The individual hexagonal bins are built on the ground on their sides, and are thereafter hoisted above the ground in a horizontal attitude and while suspended in the air they are rotated to a vertical attitude and lowered into their positions on top of the columns.
Patent CA-1128266-A (CA)
Title: Esterification of carboxyl end groups  employing addition of oxirane compounds
Inventor: GRIFFITH RONALD L
IPC: C08G63/42
Filed: 1979-06-04
Granted: 1982-07-27
Abstract: ABSTRACT OF THE DISCLOSURE       A method of reducing the number of free carboxyl end groups present in a fiber-forming polymer is given whereby to the polymer minor amounts of a low-boiling oxirane compound such as ethylene oxide are added.
Patent CA-1115952-A (CA)
Inventor: MATHIS ROBERT D
IPC: E01H5/06
Filed: 1979-06-15
Granted: 1982-01-12
Abstract: TITLE: VARIABLE WING PLOW BLADE AND MOUNTING STRUCTURE   THEREFOR            ABSTRACT OF THE DISCLOSURE: A variable wing plow blade and mounting structure for attaching the plow blade to a tractor, snow grooming vehicle, and the like feature distribution of the load on the blade over a relatively wide area of the supporting structural members thereby to permit reduction in their size, weight and number and in their manufacturing and assembling costs while maintaining the essential structural strength, and are further characterized in the attainment of improved performance and utility in respect of independence of the plow blade height and pitch or roll, tilt and wing blade adjustments, and greater freedom of movement of the wing blades of the plow blade, both forwardly and rearwardly, from a position of alignment with the center section of the plow blade.
Patent CA-1119685-A (CA)
Inventor: GILLILAND JOHN D
IPC: H04B3/00
Filed: 1979-06-21
Granted: 1982-03-09
Abstract: ABSTRACT        A monitor for monitoring the performance of a digital transmission system has three level sensors for sensing at decision instants the level of a signal derived from a transmitted signal. A first of the level sensors has its threshold set at a level corresponding substantially to the eye diagram amplitude, a second has its threshold set near the upper level of the eye diagram amplitude, and the third has its threshold set near the lower level of the eye diagram amplitude.  The outputs from the level sensors are connected to logic circuitry which is arranged to energise an alarm whenever the upper or lower eye amplitude level is between the thresholds of the second and third level sensors.
Patent CA-1125898-A (CA)
Title: Semiconductor laser device and method of manufacturing the same
Inventor: DOI ATSUTOSHI
IPC: H01S5/00
Filed: 1979-06-29
Granted: 1982-06-15
Abstract: Semiconductor Laser Device and Method of Manufacturing the Same Abstract of the Disclosure The specification discloses a semiconductor laser device comprising a semiconductor material assembly including a substrate for crystal growth having on the surface thereof a second semiconductor layer, a first semiconductor layer having an active region formed above the substrate for crystal growth and a third semicon-ductor layer, the refractive index of each of the second semiconductor material region and the third semiconductor layer being smaller than that of the first semiconductor layer and the band gap of each of the second semiconductor material region and the third semiconductor layer being broader than that of the first semiconductor layer. A first electrode is formed on one surface of the semi-conductor material assembly on the side of the third semiconductor layer, a second electrode is formed on one surface of the semiconductor assembly on the side of the substrate for crystal growth, and at least one device for performing optical feedback to generate optical radiations is provided. The thickness of the active region in the contact interface between the first semiconductor layer and the substrate for crystal growth is made larger than the thickness of the other portion in the first semicon-ductor layer so that the effective refractive index to laser beams is changed stepwise in a direction vertical to the advance direction of laser beams. The resulting device is effective for prolonging the oscillation wave-length and stabilizing the transverse mode.
Patent CA-1124860-A (CA)
Title: Method and apparatus to extend the  bandwidth of buffeting in flight  simulators
Inventor: MINNICH GEORGE E
IPC: G09B9/12
Filed: 1979-08-03
Granted: 1982-06-01
Abstract: ABSTRACT    Method and apparatus for driving the motion system of a flight trainer to simulate aircraft buffeting which method and apparatus avoids the resonant frequency of the motion systems hydraulic actuators by using a "Linear Tracking Band-Stop Filter". Band-stop filter circuitry is combined with linear tracking band-pass filter circuitry to provide the linear tracking band-stop filter. This circuit receives command signals intended for the servo-amplifier used to drive a hydraulic actuator. The band-stop filter eliminates or substantially attenuates those frequencies contained in the command signal which would cause resonance of the hydraulic actuator. It has been discovered that the resonance frequency of the hydraulic actuator varies as a function of the extension of the actuator, and therefore in this invention the center frequency of the band-stop filter tracks the resonant frequency of the actuator such that a much smaller band of frequencies is eliminated.
Patent CA-1130290-A (CA)
Title: Method for preparing  7,8-dichloro-tetrahydroisoquinoline
Inventor: LAM BING L
IPC: C07D217/02
Filed: 1979-08-03
Granted: 1982-08-24
Abstract: METHOD FOR PREPARING 7,8-DICHLORO-TETRAHYDROISOQUINOLINE     ABSTRACT OF THE DISCLOSURE          A method for preparing 7, 8-dichloro-1,2,3,4-tetrahydro-isoquinoline comprising heating N-halo or hydroxyethyl-N-benzyl-amines in an aluminum chloride melt at 160-210°.
Patent CA-1154521-A (CA)
Inventor: MULET-MARQUIS YVES H
IPC: G05D3/12
Filed: 1979-10-04
Granted: 1983-09-27
Abstract: DEVICE FOR POSITION CONTROL                          ABSTRACT A device for position control including a first generator for delivering first and second identical signals dephased to each other by 90°.  A position pickup having two inputs connected to the first and second signals and an out-put for delivering a measurement signal whose phase is representative of the actual angular position of the compo-nent part to be controlled.  A second generator for receiving a digital binary word instruction and for delivering an instructional signal of the same frequency as the first and second signals and having a phase representative of the desired angular position of the component part. A deviation signal generator connected to the output of the angular position pickup and the second generator for delivering a deviation signal representative of the dephasing between the measurement and instruction signals and a control device for controlling the angular position of the component as a function of the deviation signal.
Patent CA-1138701-A (CA)
Inventor: MAGILL ROBERT J
IPC: A62C2/24
Filed: 1979-12-21
Granted: 1983-01-04
Abstract: TO  ALL  WHOM  IT  MAY  CONCERN:     BE IT KNOWN THAT I, ROBERT JOHN MAGILL, a British Subject, of Blarney House, Kingsdown Park, Tankerton, Whitstable, Kent, England, have invented a certain new and useful DAMPER BLADE OPERATING MECHANISM   of which the following is a Specification:-ABSTRACT OF THE DISCLOSURE            An assembly comprising a fluid damper with movable blades which is contained in a duct.  On the outside of the duct there is a blade release mechanism. A fusible actuating cartridge is arranged to act on the blade release mechanism to release the blades from their normal positions if and when fire breaks out.  The cartridge projects through an opening in the duct so as to be readily removable from the duct.
Patent CA-1122965-A (CA)
Inventor: THAKUR PRAMOD C
IPC: E21B7/06
Filed: 1980-01-16
Granted: 1982-05-04
Abstract: Case No. 6116 APPARATUS AND METHOD FOR DIRECTIONAL DRILLING               Abstract of the Disclosure A method and apparatus for drilling a horizon-tal borehole through a subterranean mineral bed with a drilling assembly including a drill shaft connected to a down-hole motor and drill bit.  A deflection device is positioned between the down-hole motor and the drill bit.  The deflection device applies a predetermined per-pendicular force to the drill bit causing the borehole to deviate from the drill shaft axis in the direction of the force.  The method includes periodically survey-ing the borehole to determine its position relative to the top or bottom of the mineral bed, and rotating the drill shaft through a half turn sequentially to provide an alternating upward and downward trajectory to the borehole within the upper and lower boundaries of the mineral bed.
Patent CA-1160945-A (CA)
Inventor: VECCHIARELLI FRANCIS
IPC: E06B9/307
Filed: 1980-01-30
Granted: 1984-01-24
Abstract: ABSTRACT OF THE DISCLOSURE       A tilter mechanism for the slats of a venetian blind includes a mounting bracket for mounting the mechanism securely to a venetian blind headrail.  A housing is connected to the bracket and an externally operable worm is rotatably mounted in said housing.  A wormwheel is also mounted for rotation about an axis in the housing in operative engagement with the worm.  The mechanism also includes an elongated tilt rod.  An axial extension is provided on each axial end of the wormwheel, a recess being formed in each extension.  One end of the tilt rod is received in a selected one of the recesses with the tilt rod thus extending away from the corresponding extension of the wormwheel along the axis of rotation thereof. A V-shaped spring clip having openings in each arm of the V is provided with the tilt rod extending through these openings to thus mount the spring clip securely on the tile rod.  One end of the V has at its free end a bent down portion including an orifice.  A rotation control disc has a central opening with at least one notch extending radially out-wardly from this central opening together with two radially out-wardly extending abutment surfaces located adjacent the outer periphery of the rotation control disc.  The rotation control disc is mounted on the other one of the wormwheel extensions.  Stop means are located on the bracket which are engageable by the abutment surfaces on the rotation control disc to restrict the range of rotation of same.  A radially outwardly extending key is provided on each axial extension of the wormwheel.  One of these keys is engaged in the orifice provided in the bent down end portion of the V-shaped clip.  The other such key is engaged by one of the notches on the rotation control disc to define a particular rotational position of same.
Patent CA-1147101-A (CA)
Title: Respirators
Inventor: DOUGLAS JAMES R H
IPC: A62B18/00
Filed: 1980-02-26
Granted: 1983-05-31
Abstract: ABSTRACT OF THE DISCLOSURE A respirator, particularly one of the type comprising a head envelop-ing hood, a substantially rigid face covering visor and an oro-nasal mask carried within the visor is provided with a fluid sustenance intake facility comprising a tube penetrating the respirator in sealed manner but movable with respect thereto to bring the end of the tube within the respirator from stowed to mouth-engaging locations.
Patent CA-1159688-A (CA)
Inventor: EMMONS JAMES D
IPC: A61C13/08
Filed: 1980-02-27
Granted: 1984-01-03
Abstract: BP&N 6650 EXTRA CORONAL ATTACHMENT            Abstract of the Disclosure An extra coronal attachment (denture) comprises a cylindrical anchor member formed as part of a crown to be attached to a natural tooth, including a cylindrical anchor surface having a predetermined angular relation to the jaw.          A replaceable clip is included in a socket formed in the partial denture, and has a semi-cylindrical cavity construc-ted to fit closely over the anchor surface, having suffi-cient flexibility to be forced onto and off of the anchor surface.  The anchor surface preferably is a groove formed in the cylinder, and the clip is proportioned to snap into the groove.  Also, the clip is dimensioned so as to allow its side walls to flex during attachment and removal of the denture.  The denture, when in place, has essentially stress free or stress isolated connections to the crowns.  The clip may be constructed as an integral part of the denture, but preferably is a replaceable piece snapped into a socket integrated into a partial denture.  There is also disclosed a process of constructing extra coronal attachments for partial dentures, incorporating the anchor members and clips.
Patent CA-1124204-A (CA)
Title: Enrichment of carbon-13 by multiphoton  dissociation of cf.sub.3cocf.sub.3
Inventor: HACKETT PETER A
IPC: B01D59/38
Filed: 1980-02-14
Granted: 1982-05-25
Abstract: TITLE     INVENTORS        Peter A. Hackett Clive Willis Michel Gauthier ABSTRACT OF DISCLOSURE                 A method of producing carbon-l 3 by multiphoton decomposition of gaseous CF3COCF3 wherein the gas is irra-diated at a pressure below 10 Torr with a laser beam at a minimum fluence of  3 joules per sq. cm. and a frequency selected such as to optimize the excitation of one of the specified species relative to the other, and then passed through a chemical separation stage to obtain a 13co or a 13C2F6 product or both.
Patent CA-1142833-A (CA)
Inventor: LEVEEN HARRY H
IPC: A61B17/12
Filed: 1980-02-29
Granted: 1983-03-15
Abstract: ABSTRACT OF THE DISCLOSURE A surgical clamp having a one-piece body of resilient plastics material with a soft, resilient strip at the clamping surfaces. The clamp body has two arms joined by a resilient member which normally spreads the arms apart but which permits the arms to be pressed into generally parellel clamping positions. The arms are held in various relative positions by a ratchet which extends from one arm and engages the other arm and which permits adjustment of clamping pressure. The arms also have projections adjacent to the clamping surfaces thereof which prevent sideways dislodgement of a clamped part.
Patent CA-1138740-A (CA)
Inventor: TAYLOR HENRY D
IPC: F15B11/042
Filed: 1980-03-25
Granted: 1983-01-04
Abstract: ABSTRACT OF THE DISCLOSURE   A multifunction hydraulic flow metering valve and a circuit therefore comprising a main valve, a bleed flow orifice, and a servo valve acting with the main valve provides for proportional speed control for lowering loads and as an anti-cavitation check valve.  A pilot valve in the circuit acting with the main valve provides the circuit with a pressure limiting relief valve.