baber/WOPTO huggingface dataset:
Patent CA-1049887-A (CA)
Inventor: REICH STEVEN A
IPC: F02D1/06
Filed: 1976-10-13
Granted: 1979-03-06
Abstract: ABSTRACT OF THE DISCLOSURE             Disclosed herein is a hydraulic aneroid control consisting of a housing containing a hydraulic piston and a flow control mech-anism.  The housing attaches to the governor housing so that the piston can move the fuel control shaft which engages the aneroid.  When the engine is started, engine oil pressure acts on the piston to engage the aneroid.  When the engine is not running, spring force moves the piston and fuel control shaft to the disengage position.  The flow control mechanism restricts oil flow into the cylinder thus slowing the piston movement and increasing the time to engagement so that even though engine oil comes up to pressure almost immediately upon cranking of the engine, aneroid engagement is delayed until after the engine starts.  The flow control mech-nism also includes a check valve to bypass the flow restriction when the engine is shut down so that the aneroid is disengaged quickly and the engine has a fast re-start capability.  In the preferred embodiment of the invention the flow restriction takes the form of a bore with a wire loosely positioned therein, the bore and wire forming a capillary.
Patent CA-1080910-A (CA)
Inventor: CONCA ROMEO J
IPC: D21C3/04
Filed: 1976-10-27
Granted: 1980-07-08
Abstract: PROCESS FOR CONTROLLING THE INTRINSIC          VISCOSITY OF SULFITE PULP          Abstract of the Disclosure A process for accurately controlling the intrinsic viscosity of sulfite pulp at the termination of a digestion operation comprising predetermining the duration of digestion time required to obtain a given pulp intrinsic viscosity for a range of initial weight ratios of combined SO2 to wood, determining during the digestion operation the initial weight ratio of combined SO2 to wood by measuring the rate of change of absorbance in the digestion cooking liquor and terminating the digestion operation at a time corresponding to the predetermined time required to obtain the given pulp intrinsic viscosity at the aforesaid combined SO2 to wood ratio.
Patent CA-1061091-A (CA)
Inventor: MUELLER HUGO
IPC: G01M99/00
Filed: 1976-11-15
Granted: 1979-08-28
Abstract: GASKET INSPECTION METHOD                    Abstract of the Disclosure A method of sensing the presence and proper positioning of an annular sealing gasket encircling the neck of a closure flange employed in the fabrication of steel shipping drums. The closure flange consists of an upstanding internally threaded cyclindrical neck surrounded by a laterally extending noncircular base at its lower end. An annular, resil-ient sealing gasket is placed about the flange neck so as to seat on the flange base. The gasket is sensed for presence and proper positioning as the flange moves along a predetermined path with automatic ejection of improperly gasketed flanges.
Patent CA-1072548-A (CA)
Inventor: WALON RAOUL G P
IPC: C13K11/00
Filed: 1977-03-14
Granted: 1980-02-26
Abstract: Abstract An improved refining process for removing impurities from enzyma-tically produced levulose syrups comprises treating the syrups with a strong acid cation exchange resin, a weak base anion exchange resin, and sulfonated coal which has decolorizing ability.  The process yields syrups of exceptional purity and stability, and furthermore the process is far more efficient than those of the prior art.
Patent CA-1075825-A (CA)
Inventor: METTLER ROLLIN W
IPC: H05K3/42
Filed: 1977-03-21
Granted: 1980-04-15
Abstract: ABSTRACT     A circuit board comprising a dielectric insulating substrate molded in its finished form with a surface recessed to correspond to the desired circuitry, the recess being filled with conductive metal which is chemically and/or mechanically bonded to the surfaces of the recess.  The substrate may be provided with holes filled or lined with conductive metal, and the surface of the circuit may be coated with protective materials, easily removable or otherwise.  The process of making the board includes molding the board to its finished form, including a recess in one or more surfaces corresponding to the desired circuitry, with connecting holes if needed; treating the entire surface in preparation for plating; applying a plating resist to the raised land areas of the board; plating the board with copper or other conductive metal to the desired thickness (e.g., into the recess).
Patent CA-1097958-A (CA)
Inventor: COVINGTON WILLIAM S
IPC: C08K5/10
Filed: 1977-04-04
Granted: 1981-03-24
Abstract: 3.0-003 TITLE OF INVENTION            OCULAR MEMBRANE AND METHOD FOR PREPARATION THEREOF          ABSTRACT OF THE DISCLOSURE                  A composition which is hydrophobic but possesses excellent wettability comprising a copolymer of a polysiloxane and an ester of glycidyl alcohol and an organic acid.        This copolymer is suitable for the manufacture of ocular membranes worn in contact with the eye which present excellent oxygen permeability and which can be worn for extremely long periods of time and then disposed of.     A method of preparing the ocular membranes is disclosed, in which the composition is placed between dispos-able molds and cured therein.  The cured, mechanically and optically finished ocular membranes are recovered by the destruction of said molds and without secondary operations.     The ocular membrane is a flexible, oxygen-permeable, membrane, adapted to be inserted on the eye and worn thereon continuously for periods of more than one month.
Patent CA-1075872-A (CA)
Inventor: LEHMANN ROLF
IPC: B22D11/128
Filed: 1977-04-12
Granted: 1980-04-22
Abstract: ABSTRACT OF THE DISCLOSURE           An apparatus is disclosed comprising a strand guide formed by guide plates which are supported and cooled by hydro-static support elements.  The support elements each include a cylinder and a piston which is pressed against the guide plate by pressure fluid supplied to the cylinder.  The pistons are each provided with a bearing pad having a plurality of recesses each supplied with fluid at a constant rate which forms hydrostatic support for and cools the guide plates.  The forces exerted by the support elements may be controlled by pressure regulating valves in the fluid supply lines leading thereto in response to sensors which sense positional shifts of the guide plates from set point.  The apparatus may also include a controller for the valves which periodically reduces the pressure of the fluid sup-plied to the support elements sufficiently to allow the casting move along the strand guide.
Patent CA-1083245-A (CA)
Inventor: FOXWORTHY MILTON K
IPC: H01H36/00
Filed: 1977-04-28
Granted: 1980-08-05
Abstract: REED SWITCH ASSEMBLY FOR A POSITION INDICATING SYSTEM         ABSTRACT OF THE DISCLOSURE    The position of a control rod located within a nuclear reactor is sensed by a position indicating system utilizing low hysteresis reed switch assemblies. Each reed switch assembly includes a reed switch having an alternating magnetic flux field applied thereto through a coil surrounding the reed switch and energized by an alternating current power source. The amplitude of the alternating magnetic flux field is adjusted to be between a first flux level required to close the reed switch and a second flux level required to open the reed switch. The level of the alternating magnetic flux field is preset to be below the second flux level to maintain the switch in the open position until an external flux field is introduced to raise the total flux level above the first flux level to actuate the reed switch to close. The interaction of the alternating and external flux fields negates the hysteresis band of ordinary reed switches and provides a more sensitive and accurate position indicating circuit.
Patent CA-1088702-A (CA)
Inventor: TEN BROECK THEODORE R
IPC: C09K3/14
Filed: 1977-05-30
Granted: 1980-11-04
Abstract: ABSTRACT OF THE DISCLOSURE       Asbestos fibers are coated with rubber.  Brake linings are made from the coated fibers.
Patent CA-1106468-A (CA)
Title: Method of and apparatus for monitoring the advance of  discolouration along a detector tube
Inventor: HEIM ULRICH
IPC: G01N21/77
Filed: 1977-06-24
Granted: 1981-08-04
Abstract: Abstract of the Disclosure It is known that gaseous constituents of gas mixtures can be monitored by so-called detector tubes which are filled with a chemical reagent which changes colour  as a gas sample passes through the tube.  The length of the discoloured zone is proportional to the quantity of gas con-stituent to which the reagent is sensitive.  Prior devices using such tubes have either only measured average values of gas concentration or, if able to measure instantaneous concentration, have been mechanically complicated. The present invention enables continuous monitoring of gas concentration and can provide an automatic alarm if is exceeds a predetermined maximum or falls below a predetermined minimum.  Photoelectric detectors are disposed along the tube to sense the discolouration and they are repetitively scanned to produce electrical signals which are combined to determine and indicate the rate of advance of discolouration along the tube.  If the rate of advance exceeds an adjustable limit value, an alarm can be given to indicate a peak value of gas concentration.
Patent CA-1072601-A (CA)
Inventor: HAWK DALE W
IPC: B62D49/08
Filed: 1977-08-17
Granted: 1980-02-26
Abstract: ARTICULATED VEHICLE TILT LIMITING APPARATUS    A B S T R A C T         Apparatus for limiting relative tilting between a tractor unit and a trailer unit of an articulated vehicle comprising a horizontal hitch pivot fixed to the tractor to permit relative tilting movement between the tractor and trailer units.  A pair of right and left stationary stop members are each fixed to the tractor frame and spaced from the pivot device.  Two pairs of movable upper and lower stop engaging members are fixedly connected to the horizontal pivot device to contact opposite sides of each stationary stop member to limit relative tilting movement between the tractor and trailer.  During the relative tilting between the units, one of the movable upper stop engaging members contacts the upper surface of one of the stationary stop members and simultaneously therewith the opposite movable lower stop engaging members contacts the lower surface of the opposite stationary stop members to evenly distribute stresses exerted on the components when limiting the tilt between the tractor and trailer units.
Patent CA-1100208-A (CA)
Inventor: GEISZLER THEODORE D
IPC: G08B13/24
Filed: 1977-08-30
Granted: 1981-04-28
Abstract: ABSTRACT OF THE DISCLOSURE            An improved intrusion warning or alarm system of the type wherein the presence of an intruder within a given area is detected by determining the change, caused by the motion of an intruder, of a quasi-stationary electrical field produced within the given area.  The electric field is produced by means of an oscillator whose output signal has a frequency in the range of from about 1-40 KHz and is fed to a field wire which is positioned within the area to be protected and the electric field is de-tected by an antenna whose output is connected to an amplifier.          An AM detector is connected to the output of the amplifier and the output of the AM detector is connected via a lowpass filter to a high gain amplifying means including a bandpass filter arrangement so that at the output of this high gain amplifier only signals within the relatively low frequency range of from 0.2 to 2Hz associated with movement of an intruder are present.          The output signal from the high gain amplifier is fed to a threshold circuit which produces an output signal whenever the input signal thereto exceeds a predetermined threshold value, and this output signal is fed to an alarm producing circuit.          The frequency of the electric field is preferably approximately midway between two successive harmonics of the frequency of any a.c. power existing in the vicinity of the area to be protected in order to decrease the possibility of false alarms.  Other techniques for reducing the possibility of false alarms and for extending the utility of such a system are disclosed.
Patent CA-1101592-A (CA)
Inventor: GORDON GERALD A
IPC: C08J3/02
Filed: 1977-10-19
Granted: 1981-05-19
Abstract: ABSTRACT OF THE DISCLOSURE     Micron size polymer particles with narrow particle size distribution are prepared by dissolving the polymer in a suitable liquid solvent, impinging an atomized spray of the dissolved polymer on a moving film of a liquid in which the polymer is insoluble and then recovering the polymer particles from the resultant mixture of liquids.
Patent CA-1132251-A (CA)
Title: Data handling equipment for use with sequential  access digital data storage devices
Inventor: HAMER-HODGES KENNETH J
IPC: G06F3/06
Filed: 1977-11-16
Granted: 1982-09-21
Abstract: A B S T R A C T       The invention provides in a disc buffer peripheral access-unit a random access memory which is equivalent in storage size to one complete disc track, and includes command and status registers located at the start and finish addresses respectively of each sector of the track.  When a transfer is required,  the control-register of  each sector involved in transfer is programmed with the track-identity by the disc-handler process. When a sector is read-out and stored in the corresponding area of the buffer, the relevant status-register is correspondingly updated.  This permits processor interrogation, of the status-register for the particular sector at any time.  Multiple transfers may be performed by using a status/command resister-map in a storage segment accessible to the disc-handling process.
Patent CA-1090870-A (CA)
Inventor: JAMES BARRY K
IPC: B03C3/68
Filed: 1977-11-22
Granted: 1980-12-02
Abstract: ABSTRACT           A control circuit for an electrostatic precipitator, in which an analogue voltage indicative of the desired precipitator electrode potential is stored and periodically increased in the absence of any condition, notably a falling electrode potential, that the desired voltage is excessive in which case the stored potential is reduced.
Patent CA-1042124-A (CA)
Inventor: GRIFFIN GERALD J L
IPC: C08L75/04
Filed: 1977-11-25
Granted: 1978-11-07
Abstract: BIODEGRADABLE SYNTHETIC RESIN-BASED COMPOSITIONS          ABSTRACT OF THE DISCLOSURE     A biodegradable composition comprises a synthetic resin, a biodegradable granular filler such as natural starch and a substance autoxidisable to yield a peroxide which attacks the carbon to carbon linkages in the resin.
Patent CA-1096981-A (CA)
Title: Interference insensitive line supervision circuit
Inventor: DIJKMANS EISE C
IPC: H04M3/22
Filed: 1978-01-18
Granted: 1981-03-03
Abstract: ABSTRACT:            A connecting circuit for telephone lines includes a line supervision circuit for providing signals in response to open and closed circuits of the lines.  This line super-vision circuit provides undesirable signals in response to overvoltage conditions.  A detection circuit responsive to overvoltage conditions exceeding a working range of the line supervision circuit and a blocking arrangement connected to the detection circuit prevents the line supervision circuit from affecting the state of a line state store by undesirable signals during overvoltage conditions on the lines.
Patent CA-1065459-A (CA)
Title: Tete laser
Inventor: JACOB LOUIS
IPC: H01S3/05
Filed: 1978-01-19
Granted: 1979-10-30
Abstract: Tête laser comportant ? - un barreau actif en verre dopé au néodyme,- une source lumineuse destinée à amplifier un faisceau laser de longueur d'onde 1,06 micron traversant le barreau, - au moins un cristal de rubis produisant un rayonnement dirigé sur le matériau actif,caractérisé par le fait que le cristal de rubis est disposé coaxialement au barreau à l'intérieur d'un réflecteur sphérique concave, le barreau et le cristal de rubis étant, à l'intérieur du réflecteur, disposés sensiblement de manière symétrique par rapport au centre du réflecteur sphérique.
Patent CA-1109666-A (CA)
Title: Niveau electronique
Inventor: GAUCHER EDWIN
IPC: G01C5/04
Filed: 1978-02-13
Granted: 1981-09-29
Abstract: Niveau électronique pour mesurer la dénivellation entre deux points.  Le niveau électronique comporte une enceinte tubulaire creuse faite d'un matériau flexible ayant en son intérieur un fluide de faible viscosité.  Deux transducteurs piézoélectriques sont montes chacun à une extrémité respective de l'enceinte tubulaire et en contact avec le fluide.  Un ensemble électronique relie à chacun des transducteurs piézoélectriques permet le traitement et l'affichage numérique des signaux délivrés par ces transducteurs de sorte à fournir une mesure de la dénivellation entre les points. En outre, un circuit associé à l'ensemble électronique de traitement compense une variation de la densité du fluide avec la température.
Patent CA-1082035-A (CA)
Inventor: SCHREINER LESTER D
IPC: B62D53/02
Filed: 1978-02-14
Granted: 1980-07-22
Abstract: FOLDABLE IMPLEMENT              Abstract of the Disclosure An agricultural implement includes a main frame and tool-carrying outer sections foldable between transversely extending operational and fore-and-aft extending transport positions.  The folding mechanism transversely separates the inner ends of the outer sections as it simultaneously rotates the sections rear-wardly into transport position.  Tools supported on adjacent ends of the sections are thus separated to eliminate interference therebetween during transport.
Patent CA-1100237-A (CA)
Inventor: PEASE ROGER F W
IPC: H01J37/302
Filed: 1978-02-22
Granted: 1981-04-28
Abstract: MULTIPLE ELECTRON BEAM EXPOSURE SYSTEM            Abstract of the Disclosure In an improved electron beam exposure system (EBES), a demagnified image of an array of illuminated apertures is focused and scanned over the surface of a resist-coated workpiece.  A deflection unit is associated with the array of apertures to provide an independent blanking capability for each of the electron beams propagated through the aperture array.  Such an EBES can be operated in a faster mode than a conventional system.          In addition, the electron dose delivered to each address position on the resist coating can be thereby selectively controlled.
Patent CA-1094167-A (CA)
Inventor: HARRIS DONALD L
IPC: A61N1/05
Filed: 1978-03-21
Granted: 1981-01-20
Abstract: ABSTRACT OF THE DISCLOSURE        The cardiac pacer lead disclosed herein may be secured or effectively sutured to cardiac tissue by ejecting a length of malleable wire through a tubular die having, at its distal end, a curved central bore which imparts a curvature of essentially predetermined radius to the wire.  Passing through the tissue, the wire forms a circular loop or suture which can retain the lead in the desired position for stimulation.
Patent CA-1089351-A (CA)
Inventor: PARENT JEAN-MARC
IPC: B60C25/132
Filed: 1978-04-10
Granted: 1980-11-11
Abstract: A B S T R A C T     An apparatus for removing tires from heavy vehicle wheel rims having an integral sealing lip on one side and a removable sealing ring secured in place by a locking ring on the other, is disclosed.          The apparatus comprises a frame, a support member mounted on the frame and adapted to engage the inside diameter of the rim to support the wheel,  a movable member located on the axis of the support member and adapted to contact the sealing ring and move it inwardly, so as to free the locking ring, thereby permitting removal of the locking ring and the subsequent removal of the sealing ring, and means for moving the movable member toward the support member.
Patent CA-1093703-A (CA)
Inventor: SAKAI TETSUSHI
IPC: H01L21/768
Filed: 1978-04-21
Granted: 1981-01-13
Abstract: ABSTRACT OF THE DISCLOSURE           In a   transistor, around border line of the surface of a base region formed on a semi-conductor the surface is formed a base electrode having polycrystalline silicon. An  island shape emitter region is formed in the base region and on electrode is formed on  the surface of the emitter region. The emitter electrode is electrically  isolated  from the base electrode by an insulating film extending between the periphery of the emitter region and the base electrode.
Patent CA-1100481-A (CA)
Title: Eductor-mixer system
Inventor: HANDLEMAN AVROM R
IPC: A62C31/12
Filed: 1978-08-24
Granted: 1981-05-05
Abstract: Abstract of the Disclosure An eductor-mixer system in which pressur-ized working fluid is discharged through a nozzle as a concentric, high speed jet flowing past the end of an inlet tube into a mixing chamber for generating a vacuum thereby to positively draw a pressure trans-portable material through the inlet tube and into the mixing chamber and for mixing with the working fluid to form a dispersion with the walls of the g chamber being spaced from the projected path of the jet. A bypass is disclosed for the flow of pressurized working fluid around the nozzle thereby to control the amount of material drawn into the eductor-mixer.  A recycle system is also disclosed which withdraws a portion of the mixed dispersion and recirculates it through the nozzle for shearing as it passes through the nozzle.  Additional material and/or working fluid may be added so as to vary the concentration level or quality of the resulting dispersion.
Patent CA-1090625-A (CA)
Inventor: GOLWAS ROBERT F
IPC: B23B47/18
Filed: 1978-04-26
Granted: 1980-12-02
Abstract: Abstract of the Disclosure IMPROVED LOCKING MEANS FOR POSITIVE FEED DRILL         The improved locking means includes a pair of shaft mounted gears that are in mesh with the thread on the exterior of the feed screw mounted in the housing of a positive feed drill.          On the opposite ends of the shafts are mounted gears which rotate with the shafts.  When the drill tool holder is not to be advanced, the gears and shafts rotate as the feed screw is being rotated and thus do not cause axial movement of the feed screw as the feed screw rotates.  A rack gear is located in the housing adjacent the spur gears.  A pressure actuated piston is provided to move the rack gear into engagement with the spur gears to lock the spur gears and shafts against rotation.  When this occurs, the gears in mesh with the thread on the feed screw act as a fulcrum so that the feed screw and tool holder are moved axially as the feed screw rotates.                            .1a.
Patent CA-1118483-A (CA)
Inventor: NISHIBAYASHI KATSUMI
IPC: G03G9/087
Filed: 1978-05-16
Granted: 1982-02-16
Abstract: Abstract of the Disclosure A developer for electrostatic images comprising a binder medium and a pigment dispersed in the binder medium is disclosed.  This binder medium comprises (A) a thermoplastic or rubbery polymer containing a member selected from the group consisting of a halogen atom and a nitrile group at a concentration of at least 100 milliequivalents per 100 g of the polymer and (B) a binder having a melting temperature lower than that Or the polymer (A) at an (A)/(B) mixing weight ratio of from 1/20 to 1/1,  The halogen- or nitrile-containing polymer (A) is present in the form of fine particles dispersed in the continuous phase of the binder (B).            This developer has good flowability and charge charac-teristics at the developing step and shows an excellent offset-preventing effect at the fixing step.
Patent CA-1096667-A (CA)
Inventor: RUHL JOHN H
IPC: F16B19/10
Filed: 1978-06-14
Granted: 1981-03-03
Abstract: ABSTRACT OF THE DISCLOSURE   A blind fastener of a selected metal in which uniform tensile values over a wide range of grips or material thicknesses in which the blind head is formed for different grips by the construction of a plu-rality of spaced annular ribs formed between spaced annular grooves in the head end of the pin which is pulled into the sleeve of the blind fastener.