baber/WOPTO huggingface dataset:
Patent CA-1083659-A (CA)
Inventor: GUNDERSON PHILIP D
IPC: F02P5/155
Filed: 1977-11-29
Granted: 1980-08-12
Abstract: AN ELECTRONIC IGNITION TIMING ADVANCE CIRCUIT            ABSTRACT An electronic ignition circuit is disclosed which produces a spark timing signal for controlling the firing of the cylinders of an internal combustion engine.  A sensor produced input signal having a frequency proportional to engine speed is coupled to an ignition timing means which produces a spark timing signal by controlling the charging and discharging of a capacitor.  The produced spark timing signal differs in phase from the input signal as a pre-determined function of engine speed and the phase difference preferrably varies as function of speed according to a plurality of different slope line segments over a range of engine speeds.  An advance means also receives the sensor input signal and produces a digital output signal for the timing means comprising a series of pulses synchronized with the input signal and having predetermined pulse widths related to the magnitude of the vacuum pressure produced by the engine.  The ignition timing means charges a capacitor at a first rate during a portion of the period of the input signal, maintains the discharge on the capacitor at a constant level during the existence of the advance pulse and discharges the capacitor at a second rate after the occurrence of the advance pulse,  This results in adding a predeter-mined amount of phase, determined by the magnitude of the vacuum pressure produced by the engine, to the speed depen-dent phase versus engine speed relationship produced by the ignition timing means.
Patent CA-1072544-A (CA)
Inventor: BROGGI RENATO
IPC: C07D499/00
Filed: 1977-12-15
Granted: 1980-02-26
Abstract: ABSTRACT OF THE DISCLOSURE:           A process for preparing penicillins, in which 6APA is treated with a polar solvent, then with an organic base to give a mixture which is cooled at a temperature lower than -25°C.  A cyclic derivative of boron is added to the mixture and the temperature is increased to about 0°C.  An intermediate compound is formed which by treatment first with an acylating agent and then with a mixture of water and alcohol provides,a solution containing the penicillin.
Patent CA-1101794-A (CA)
Inventor: POGRZEBA HANS-JOACHIM
IPC: F28D7/10
Filed: 1977-12-20
Granted: 1981-05-26
Abstract: A Gas Cooler Abstract The specification describes a gas cooler for removing condensed matter from not crude gas, as for example generator gas using, indirect heat exchange in bundles of cooling tubes.  Tubes spacer plates define an inlet and an outlet chamber.  From one of these chambers the condensate is removed.  Each cooling tube is surrounded by a casing tube and the casing tubes are fixed in tube spacer plates which delimit a cooling gas inlet and a cooling gas outlet cham-ber which are respectively separated by the corresponding spacer plates for the cooling tubes.
Patent CA-1100789-A (CA)
Inventor: HULL FREDERICK C
IPC: C22C38/58
Filed: 1978-01-31
Granted: 1981-05-12
Abstract: 46,644 ALLOY, APPARATUS INCLUDING PARTS OF SAID   ALLOY, METHOD OF TREATING SAID ALLOY            ABSTRACT OF THE DISCLOSURE        A cold-worked, high strength, non-magnetic, austenitic, ferrous alloy having high resistance to stress-corrosion cracking and hydrogen embrittlement.  Composition of this alloy in weight percent is:         Manganese -      17 to 23 Chromium -       >6 to <10 Carbon -         0.35 to 0.8 Silicon -        up to 1.5 Nickel -         up to 2.75 Molybdenum -     up to 3.5 Vanadium -       up to 1.7 Columbium -      up to 0.45 Nitrogen -       up to 0.8 Iron -           Balance with carbon plus nitrogen 0.35 to 0.8 and the manganese plus chromium between 24 and 31.5.  Also a large electrical generator with retaining and baffle rings of the alloy.          Also a method of hardening this alloy by cold working and aging.
Patent CA-1122078-A (CA)
Inventor: RENEGAR CHARLES G
IPC: B43K3/00
Filed: 1978-02-06
Granted: 1982-04-20
Abstract: Abstract of the Disclosure For striping pencils, paint is extruded through die orifice in the walls of a passage through which the pencil is advanced longitudinally.  The orifices are formed in lands which engage corresponding side regions of the pencil and guide the pencil through the passage.  The passage is formed in a block having parts that are supported for relative movement along guide rods and are usged together resiliently.  Each block part may have at least one paint reservoir with a duct extending from the reservoir and terminsting in a die orifice.  The paint, which is supplied to the reservoirs under pressure from a separate source, moves longitudinaIly of the pencil in shallow channels as it issues from the orifices and spreads laterally to an extent depending upon viscosity of the paint, forming stripes of width greater than that of the orifices.
Patent CA-1104058-A (CA)
Inventor: MICHEL GEORGE H
IPC: A61K6/00
Filed: 1978-02-23
Granted: 1981-06-30
Abstract: ENDODONTIC FORMULA FOR TREATMENT OF ROOT CANAL            ABSTRACT OF THE DISCLOSURE            An endodontic formula for continuous medication of root canals is provided comprising zinc oxide, titanium oxide, paraformaldehyde, vitreous carbon, hydrocortisone, and pred-nisolone, all of which may be mixed with a eugenol liquid for filling the root canal.  Alternatively, the hydrocortisone and prednisolone may be omitted and the amount of zinc oxide may be used to take its place.
Patent CA-1101590-A (CA)
Inventor: COKER JAMES N
IPC: C09J129/04
Filed: 1978-03-08
Granted: 1981-05-19
Abstract: ABSTRACT OF THE DISCLOSURE            Adhesives consisting essentially of polyvinyl alcohol or ethylene/vinyl alcohol copolymer, a crystalline solvent for the polymer component (such as urea, thiourea, acetamide, ammonium formate, etc.) and a viscosity reduc-ing diluent (such as water, glycols, etc.) are disclosed.          The adhesives are particularly suitable for cellulosic substrates and provide excellent ambient temperature water resistance while being fully repulpable in hot water.
Patent CA-1109967-A (CA)
Title: Expandable microprogram memory
Inventor: JOYCE THOMAS F
IPC: G06F9/32
Filed: 1978-03-20
Granted: 1981-09-29
Abstract: ABSTRACT A method and an apparatus for increasing the capacity and speed of access of a large microprogram control store.  The method or apparatus incorporates the use of a 4 bit control field in a microinstruction word which is set into a hardware register to extend the address beyond the normal range of the addressing capability of the microinstruction word.  The 4 bits stored in the hardware registers allow 1 of a maximum of 16 read only memory control stores to be selected thereby resulting in the normal addressing circuitry to have a reduced number of components.  This technique also allows the selection of another of the memory control stores in one machine cycle.
Patent CA-1107416-A (CA)
Title: Elevator system with detector for indicating relative  positions of car and counterweight
Inventor: KOOB ROBERT W
IPC: B66B5/02
Filed: 1978-03-22
Granted: 1981-08-18
Abstract: 47,086 ABSTRACT OF THE DISCLOSURE An elevator system including an elevator car and counterweight mounted for guided vertical movement in the hoistway of a building.  A magnetically operated detector mounted on the elevator car cooperates with a magnetic shield disposed in the hoistway to noiselessly provide signals which indicate when the elevator car and counterweight are in a predetermined collision zone where collision is possible should the counterweight deviate from its normal travel path.  The detector also provides signals when the elevator car and counterweight are outside the collision zone, which signals indicate the relative positions of the elevator car and counterweight.
Patent CA-1111891-A (CA)
Inventor: DE JONG JACOBUS
IPC: H01J61/36
Filed: 1978-04-06
Granted: 1981-11-03
Abstract: ABSTRACT:             A high-pressure metal vapour discharge lamp having a ceramic discharge vessel, the end plug being fused by means of sintering to the discharge vessel slightly displaced inwards, sealing glass being disposed in the space enclosed by the end plug, the upright edge of the discharge vessel and the current supply element.
Patent CA-1113628-A (CA)
Inventor: HUGHES JAMES K
IPC: B29C41/00
Filed: 1978-04-25
Granted: 1981-12-01
Abstract: Abstract of the Disclosure A composition that can be rotationally molded with a minimum formation of bubbles comprises solid polymer, a cross-linking agent, a solid pigment in an amount to provide a surface area up to 30 m2/100 grams of polymer, and a transition metal catalyst residue content of less than about 3 parts per million.
Patent CA-1083615-A (CA)
Inventor: KUNZ PETER
IPC: G01G23/48
Filed: 1978-05-18
Granted: 1980-08-12
Abstract: ABSTRACT OF THE DISCLOSURE     A balance of the type provided with a permanent magnet system having an air gap, and a coil carrier arranged in the gap so that when a compensation current is supplied to the coil the load pan and its load to be weighed are compensated by the motor effect of the current,  is provided according to the invention with at least one ferromagnetic member secured to the load-receiving means in the region of the permanent magnet field, whereby at least an approximate compensation for a pre-load is obtained.       The heating effect of coil current is thereby lessened, permitting higher accuracy of weighing.       Advantageously the ferromagnetic member is secured to the coil carrier, and comprises a set of members in rotationally symmetrical arrangement.  When the members and the magnet system have corresponding-mutually-compensating temperature coefficients of magnetic performance, a highly precise apparatus is realised.
Patent CA-1081184-A (CA)
Inventor: SMITH JAMES C
IPC: B65D47/34
Filed: 1978-07-17
Granted: 1980-07-08
Abstract: ABSTRACT OF THE DISCLOSURE     A pipettor for threaded attachment to a liquid containing jar provides for dispensing a controllable volume of liquid with a high degree of precision upon manually operating a plunger.   The liquid volume dispensed in a single plunger operation is adjusted by rotation of the plunger knob.  Both a linear coarse scale and a circular fine adjustment scale are provided for accurately setting the volume to be dispensed.  Positive detent stops are provided for accurate volume settings.  Improved air purging and plunger locking mechanisms are also provided.
Patent CA-1098389-A (CA)
Inventor: WHITELEY WILLIAM B
IPC: A01K11/00
Filed: 1978-08-09
Granted: 1981-03-31
Abstract: A B S T R A C T           An animal ear tag applicator comprising a spear adapted to carry the anchor portion of an ear tag, operable by a lever or squeeze action handle in conjunction with an apertured base so that the spear carries the anchor portion of the tag through the ear of the animal and through the aperture in the base.  The spear is arranged to be able to pivot once the tag has been inserted to assist in withdrawing the spear from the ear, and the base is provided with buffers arranged to remove the tag from the spear before the spear is withdrawn from the ear.
Patent CA-1081723-A (CA)
Inventor: MILLER MYRL J
IPC: B65H5/00
Filed: 1978-08-15
Granted: 1980-07-15
Abstract: DOCUMENT FEEDER WITH RECIRCULATION AND UNLOADING             Abstract of the Disclosure A large capacity input bin for a copier/duplicator is capable of receiving a multiplicity of stacks of sheets requiring processing. Control data describing the job to be done for the first stack in the input tray is introduced as by header information, operator input or the like.  All sheets associated with the stack are bottom fed from the input tray to a processing station and thence to at least one additional tray or bin.  The documents are subsequently processed for additional copies as specified by the input data by bottom feeding from the additional tray and top stacking the copied documents into that same tray or into yet another additional tray.  Completion of the total number of document copies through the recirculation associated with the additional trays results in unloading of the original documents from the additional tray or trays.  Jam recovery is obtainable by reverse or top feeding of documents requiring recycling from the additional bin or bins.
Patent CA-1089393-A (CA)
Inventor: FICHTER ROBERT
IPC: B65B61/26
Filed: 1978-08-15
Granted: 1980-11-11
Abstract: ABSTRACT       An imprint marking device utilizing transfer tape moved from a tape supply reel to a take-up reel across an imprint station with a moving marker head having raised indicia movable against the tape to press the tape against an article to be marked.  A tape drive system includes a drive roller and an opposed idler roller.  Both the tape drive system and the marker head are actuated by a single power cylinder which has power rods extending from opposite ends connected to a single common internal piston, one of the rods operating the marker head and the other of the rods operating the tape drive system.
Patent CA-1092553-A (CA)
Inventor: DUDYNSKYJ PETER P
IPC: A61G3/06
Filed: 1978-09-19
Granted: 1980-12-30
Abstract: WHEELCHAIR LIFT DEVICE          Abstract of the Disclosure:       A wheelchair lift device including a platform located in the stepwell of a motorcoach for raising and lowering a wheelchair between a first position wherein the platform is in horizontal alignment with an elevated floor formed with the motorcoach and a second position wherein the platform is at ground level. The device includes foldable hinged sections that are positioned through a linkage and a rotatable arm to form steps for use by able-bodied persons and are extendible laterally outwardly relative to the stepwell so as to align the hinged sections along a horizontal plane and thereby form the platform for supporting the wheelchair.
Patent CA-1120989-A (CA)
Inventor: CREDELLE THOMAS L
IPC: H01J29/50
Filed: 1978-10-03
Granted: 1982-03-30
Abstract: RCA 71,849 Modular Flat Display Device With Beam Convergence Abstract An evacuated envelope has substantially flat, parallel front and back walls and spaced, parallel support walls extending between and perpendicular to the front and back walls and forming a plurality of channels.  Beam guides extend along each of the channels for guiding three beams along each channel and for selectively deflecting the beams at selected points along the channel toward a phosphor screen on the front wall.  Between the beam guides and the phosphor screen are deflection electrodes for deflecting the beams transversely across the channel so as to scan the portion of the phosphor screen which extends across the channel.  Also between the beam guides and the phosphor screen, unlike earlier displays of this type, are additional electrodes which are biased to create an electron lens for converging the three beams at a point spaced from but adjacent to the screen.  The phosphor screen is preferably made up of different color emitting phosphor bodies with each beam impinging on a different color phosphor, and the beams are converged at a shadow mask which extends across the channel adjacent to but spaced from the screen.
Patent CA-1054361-A (CA)
Inventor: WATKINS LAURENCE S
IPC: G01B11/12
Filed: 1978-10-30
Granted: 1979-05-15
Abstract: METHOD OF MEASURING THE PARAMETERS                     OF OPTICAL FIBERS          Abstract of the Disclosure The present invention relates to a method of measuring the cladding thickness, t of a clad optical fiber of known core diameter, DC and of known cladding core refractive indices m1 and m2 respectively.  The method comprises the steps of directing a beam of spatially coherent, monochromatic radiation at the fiber to thereby generate a complex scattering pattern.  At least a portion of the pattern includes contributions from the diffraction, the reflection and the refraction of the beam of the fiber.     The scattering pattern is spatially radially disposed about the fiber and has a fringe pattern intensity modulation superimposed thereon.  The method further includes, at a given reference angle .theta.R, measuring the modulation pattern over an angle range .DELTA..theta.R, where .theta.R satisfies the relationship:                .theta.R + 1/2 .DELTA..theta.R  < .theta.F, where .theta.F is the fringe cut-off angle which, in turn, satisfies the relation: m1 cos(.theta.F/2) = 1.          The method further includes the step of determining the core-to-fiber diameter ratio, R, by comparing the measured modulation pattern with modulation patterns priorly observed for clad optical fibers of the same core and cladding indices, measured at the same scattering angle range .DELTA..theta.R; and then computing the cladding thickness from the equation: t - DC(1 - R)/2R.
Patent CA-1121480-A (CA)
Inventor: HELLMAN MARTIN E
IPC: H04K1/00
Filed: 1978-10-30
Granted: 1982-04-06
Abstract: CRYPTOGRAPHIC APPARATUS AND METHOD                 Abstract of the Disclosure A cryptographic system transmits a computationally secure cryptogram over an insecure communication channel without prearrangement of a cipher key.  A secure cipher key is generated by the conversers from transformations of exchanged transformed signals.  The conversers each possess a secret signal and exchange an initial transformation of the secret signal with the other converser.  The received transformation of the other converser's secret signal is again transformed with the receiving converser's secret signal to generate a secure cipher key.  The transformations use non-secret operations that are easily performed but extremely difficult to invert.  It is infeasible for an eavesdropper to invert the initial transformation to obtain either con-versers' secret signal, or duplicate the latter transforma-tion to obtain the secure cipher key.
Patent CA-1106510-A (CA)
Inventor: AUSTIN ERIC P
IPC: C02F11/123
Filed: 1978-12-15
Granted: 1981-08-04
Abstract: ABSTRACT OF THE DISCLOSURE           An apparatus for thickening sludge is disclosed herein.  The apparatus includes an endless band of mesh material which, in one section of the apparatus, has a generally horizontal run extending between spaced guides.          The horizontal run is supported between the guides on a structure which permits liquid to drain freely through the band.  A structure is provided for introducing sludge to be treated into the apparatus, together with means for dosing the sludge to be treated with a cationic polyelectro-lyte.  A tank for receiving and holding the dosed sludge for a sufficient period of time to allow development of a flock structure is also provided.  A supply means is also provided for supplying sludge from the tank to the upper surface of the band of mesh material at the start of the horizontal run in such a manner that the floc structure is retained.  The supply means comprises a weir constituting the outlet of the tank and a chute of shallow gradient extending from the weir to the start of the horizontal run whereby to deposit the sludge on the band without substantial forward velocity.  A drive means is also provided for driving the band so that the sludge is conveyed through the run without destroying the floc structure of the sludge and a scraper is provided for removing thickened sludge from the surface of the band after the horizontal run.
Patent CA-1098683-A (CA)
Inventor: YOSHIEDA KEIICHI
IPC: A44B19/38
Filed: 1978-12-21
Granted: 1981-04-07
Abstract: METHOD FOR THE FABRICATION OF A SLIDE FASTENER CHAIN WITH   REINFORCEMENT TAPES AND AN APPARATUS THEREFOR     ABSTRACT OF THE DISCLOSURE        A method is provided for fabricating a slide fastener chain having a certain length and reinforcement tapes at its ends from a manufactured, continuously lengthy fastener chain which is provided with space sections each of which entirely consists of a reinforced tape.  According to the method, the original lengthy fastener chain is held first by a pair of pressers on a die at one side of the main crosswise cutting line, then by another pair of pressers at the other side to form a right position so that the reinforced space section is cut along the crosswise line and at the same time, the lengthwise lines by a cutter blade. This method is performed using an apparatus with a linkage motion of its individual parts whereby working efficiency is improved and a good cutting finish is obtained.
Patent CA-1117783-A (CA)
Inventor: AUGIER ROBERT
IPC: E04B1/18
Filed: 1978-12-28
Granted: 1982-02-09
Abstract: ABSTRACT OF THE DISCLOSURE            A device for joining elongate concrete structural elements e.g. posts and beams, has a first joining element with a cavity for receiving a part of one of said structural elements, second and third joining elements for receiving the structural element in a space therebetween, the first joining element having an opening communicating with the space to receive the structural element into the cavity, bolts for clamping the second and third joining elements together onto the structural element, and bolts for securing the second and third joining elements to the first joining element.
Patent CA-1112679-A (CA)
Inventor: DREIER MELVIN E
IPC: B60P1/40
Filed: 1979-01-23
Granted: 1981-11-17
Abstract: Abstract of the Disclosure A material unloader for forage or the like includes a closed box-type body having interior unloading mechanism for delivering material to an exterior chute and has at least one, and preferably two, latchable closures for providing access to the body interior. The unloading mechanism is designed for connection to a source of power exteriorly of the body and locking apparatus on the closures is arranged for purposes of safety so that the unloading mechanism must be rendered in-operable to effect the opening of any closure and cannot be made operable while any closure is open and affording access to such mechanism.  This unloader may be mounted on a wheeled chassis for towing or mounted on a self-propelled vehicle.
Patent CA-1147234-A (CA)
Inventor: JADOW HENRY C
IPC: A45D31/00
Filed: 1979-01-25
Granted: 1983-05-31
Abstract: A B S T R A C T           An artificial nail for repairing, strength-ening or sculpturing of a natural nail.  The artificial nail includes a granular material such as glass beads which is adhesively bonded with a bonding composition such as cyanoacrylate glue to the natural nail or to a plastic sheet to form a textured surface.  If desired, textured layers also composed of the granular material and bonding composition may be adhesively bonded to the textured surface of the natural nail to provide for an artificial nail of the desired thickness.  The artificial nail is shaped with a nail file and buffed to its final form.  A plastic sheet bonded to the natural nail by cyanoacrylate glue and overcoated with a monomer/polymer composition to form a textured sur-face may also be employed.