baber/WOPTO huggingface dataset:
Patent CA-1140349-A (CA)
Title: Curved centerline air intake for a gas turbine  engine
Inventor: RUEHR WILLIAM C
IPC: F02C7/04
Filed: 1980-04-24
Granted: 1983-02-01
Abstract: CURVED CENTERLINE AIR INTAKE FOR A GAS TURBINE ENGINE       ABSTRACT OF THE DISCLOSURE An inlet for a gas turbine engine is disposed about a curved centerline for the purpose of accepting intake air that is flowing at an angle to engine centerline and progressively turning that intake airflow along a curved path into alignment with the engine. This curved inlet is intended for use in under-the-wing locations and similar regions where airflow direction is altered by aerodynamic characteristics of the airplane. By curving the inlet, aerodynamic loss and acoustic generation and emission are decreased.
Patent CA-1165212-A (CA)
Inventor: TAYLOR AARON S
IPC: C30B15/34
Filed: 1980-06-25
Granted: 1984-04-10
Abstract: ABSTRACT OF THE DISCLOSURE      A crucible assembly for growing crystalline bodies in accordance with a capillary die process is disclosed.  The improvement comprises an integrally formed crucible cover and die top so as to provide a more uniform thermal mass and to achieve more uniform growing conditions.
Patent CA-1150507-A (CA)
Inventor: SPIEGEL SI M
IPC: A47G33/06
Filed: 1980-06-27
Granted: 1983-07-26
Abstract: ABSTRACT OF THE DISCLOSURE      There is disclosed a method and apparatus for manufactur-ing an artificial tree of the type wherein a plurality of stiffly flexible stem members are intertwisted to capture stiffly flexible limb members.  The method  comprises  a) inserting the limb mem-bers between the stem members at spaced predetermined positions, b) placing a slitted web along the stem members, and  c) inter-twisting the stem members to capture the limb members at spaced longitudinal positions and to capture the slitted web. An arti-ficial  tree produced by this method has a full, natural appear-ance.  Also disclosed is an apparatus for continuously and auto-matically performing this method.
Patent CA-1145612-A (CA)
Title: Printer having variable hammer release  drive
Inventor: BARRUS GORDON B
IPC: B41J9/52
Filed: 1980-09-11
Granted: 1983-05-03
Abstract: Abstract of the Disclosure In a dot matrix line printer in which selected ones of a plurality of hammers mounted on a reciprocating hammer bank are released in response to successive sets of serial data to print dots on a paper, the changing hammer release characteristics which are caused by different numbers of hammers being released with each new set of serial data are compensated for by an arrange-ment providing a varying hammer release signal in accordance with the number of hammers being released.  The variable release signal is provided in the form of a variation in the time interval during which the drive amplifiers associated with hammer release coils are turned on, thereby effectively varying the length of a current pulse provided to each coil in direct proportion to the number of hammers to be released.  A counter is preset, then counted down from the preset value in accordance with the number of hammers to be released as represented by a set of serial data being provided to a shift register.  When the shift register is loaded, latches associated with the various stages of the shift register containing hammer release signals are set so as to turn on associated ones of the drive amplifiers.  The counter counts up in response to clock pulses until it overflows and clears the latches so as to turn off the drive amplifiers.
Patent CA-1149648-A (CA)
Inventor: GRIMM PHILLIP R
IPC: A61C1/14
Filed: 1980-09-11
Granted: 1983-07-12
Abstract: CHUCK ASSEMBLY FOR DENTAL HANDPIECES      Abstract An improved positive-grip chuck assembly, particularly suitable for use with high-speed air-driven dental handpieces,in which a tubular chuck has a radially-flexible bur-clamping section provided with an external shoulder, and the bore in which the chuck is received has an internal shoulder engagable with the external shoulder of the bur clamping section of the chuck to flex the bur-clamping section inwardly and to hold the same in a constricted condition for securely gripping the mid-portion of the shank of a dental bur.  Piloting contact is made between the chuck and bur along circum-ferential zones spaced axially from the bur-clamping zone, and the rotor surrounds and braces the chuck portion defining the lower pilot zone to prevent distorting forces applied to the tip of the bur from being propagated to the bur-clamping zone.
Patent CA-1148404-A (CA)
Inventor: SCHELER SIEGFRIED
IPC: G03C1/54
Filed: 1980-10-07
Granted: 1983-06-21
Abstract: ABSTRACT OF THE DISCLOSURE        This invention relates to a recording material con-taining diazo compounds, in particular a microfilm, comprising a film base which is at least partially pervious to visible radiation, a light-sensitive layer and, on the reverse side of the film base, a filter layer which absorbs light in the long-wave ultraviolet spectral range and in the short-wave visible spectral range, wherein the filter layer is composed of a polymer which is insoluble or has been rendered in-soluble by cross-linking, and of at least one yellow to orange-colored dye which is compatible with the constituents of the polymer and absorbs light in the range between about 360 nm and about 500nm.  The invention also relates to a process for the manufacture of a recording material.
Patent CA-1115982-A (CA)
Inventor: PETERSON JAMES R
IPC: E21B25/00
Filed: 1980-11-18
Granted: 1982-01-12
Abstract: TITLE OF INVENTION   SAMPLING DEVICE           INVENTOR JAMES R. PETERSON                  ABSTRACT OF THE DISCLOSURE A device for obtaining a plurality of samples from mineral deposits such as placer deposits in order to discover the presence of valuable metals comprises an elongated tubular member in which is rotatably positioned an elongated cylindrical storage member, the tubular member including sets of windows along its length and the cylindrical storage member including compartments capable of alignment with the sets of windows upon rotation of the storage member relative to the tubular member.          Spring-like tooth members mounted in the compartments are capable of extending through the windows of the tubular member to help the movement of deposit material therethrough.  The sampling device may also include one or more extension sections, each extension section including a tubular element in which is rotatably positioned a cylindrical storage element, each respective element being similarly constructed to the noted tubular and cylindrical storage members, all the cylindrical storage elements in the extension sections being positively rotatably interconnected with each other and with the cylin-drical storage member.
Patent CA-1148792-A (CA)
Inventor: HOWARTH ANDREW W
IPC: B61F9/00
Filed: 1980-11-26
Granted: 1983-06-28
Abstract: ABSTRACT     "RAILWAY EQUIPMENT"     Railway equipment comprises a pair of spaced apart, flat-bottomed railway rails 1, the heads 2 of which rails are engaged by leading and trailing pairs of flanged wheels 5 of a rail vehicle 4,  the rail engaging wheels 5 being rotatable about axes 10 extending transversely of the direction of movement of the rail vehicle 4 along the rails 1, and the vehicle 4 being provided intermediate the leading and trailing pairs of wheels 5 with a pair of trapping wheels 11, rotatable about upwardly extending axes 12, one trapping wheel 11 being located at each side of the vehicle 4 and the circumferential periphery of each trapping wheel 11 having a circumferential recess 13 and mating with a trapping beam 14 having an at least partly complementary profile 15 and positioned adjacent each rail 1 at locations of presumed rail vehicle instability, the beams 14 being carried on support arms 16 extending upwardly from a base member 3 which passes beneath at least one rail 1.
Patent CA-1138852-A (CA)
Inventor: WOODLIFF RONALD D
IPC: F16L41/08
Filed: 1980-12-17
Granted: 1983-01-04
Abstract: SLIP-TYPE CONDUIT HUB FOR ENCLOSURES                    Abstract of the Disclosure An assembly for connecting a tubular conduit to an aper-tured wall of a non-metallic enclosure including a tubular insert seated in the aperture and a threaded, rotatable, hollow hub member arranged to be received by an externally projecting portion of the tubular insert.  The closed end of the hub member adjacent the enclosure rests against a compressible resilient ring for sealing engagement and being further adopted for rotat-able engagement with respect to the enclosure by means of an interposed washer made of a material having relatively low coefficient of friction with respect to the hub member.  The components of the assembly are held together by means of a laterally extending lip formed at the distal end of the insert after assembly of the cooperating elements to the enclosure.
Patent CA-1148298-A (CA)
Inventor: JOUNG JONG
IPC: C08L85/02
Filed: 1980-12-23
Granted: 1983-06-14
Abstract: Abstract of the Disclosure The curing or cross-linking of fluorinated alkoxy phosphonitrile polymers with organic peroxides is accelerated by the use of A trialkyl aluminum or a dialkyl aluminum hydride.    The coating with such polymers of biomedical articles such as embolectomy catheters or Foley retention catheters made of natural or synthetic rubber is facilitated by using for the coating a solution of such polymers in an organic solvent together with an organic peroxide and the new accelerating catalyst.
Patent CA-1153557-A (CA)
Inventor: VOIGT H WILLIAM JR
IPC: C06B45/10
Filed: 1981-01-07
Granted: 1983-09-13
Abstract: Abstract of the Disclosure Castable high explosive compositions of generally improved physical characteristics consist essentially of 2,4,6-trinitrotoluene (TNT) and about 0.05 to 10% by weight of the TNT of a thermoplastic polyurethane elastomer, which is soluble in the trinitrotoluene and is fully reacted, i.e. contains essentially no free isocyanate groups, prior to incorporation thereof in the explosive composition.
Patent CA-1112451-A (CA)
Inventor: TAPDRUP ERIK P
IPC: A63H3/00
Filed: 1981-04-06
Granted: 1981-11-17
Abstract: Abstract of the Disclosure A toy figure, adapted to be detachably mounted on a base plate pertain-ing to a toy building set and provided with coupling studs, is provided with a leg assembly comprising a pair of identical leg elements having substantially plane rear faces (calves).  Recesses comprising lengthwise extending channels are provided in the rear faces of the leg elements, and the width of these recesses is substantially equal to the width of the studs of the base plate. The recesses are symmetrical with respect to the lengthwise extending median plane of the leg elements and, in the position of the leg elements wherein their rear faces coincide, the distance between the axes of symmetry of the recesses is equal to the module m of the building set.
Patent CA-1159548-A (CA)
Title: Device for acquiring and averaging samples of a noisy   periodic signal
Inventor: RENERIC MICHEL E
IPC: H04N17/00
Filed: 1981-04-27
Granted: 1983-12-27
Abstract: ABSTRACT OF THE DISCLOSURE     In the error signal feature sensor of the device, an analog synthesized signal is produced throughout the first portion of each period of the analog noisy test signal to be acquired by means of the digital value of samples memorizing in a random access memory and a digital-to-analog converter. The noisy signal and the synthesized signal are compared therebetween at predetermined sampling times in predetermined number. The sign and modulus of the error signal in relation to a pre-determined threshold voltage are written in the memory. During the second portion of the period without the noisy signal, a processing unit as a microprocessor calculates the new digital values of the samples in term of comparison results and the preceding digital values of the samples in accordance with a particular algorithm. A new comparison and calculation cycle is performed and so on. After acquisition in steady working, the synthesized signal coincides with the average value of the noisy signal at the predetermined sampling times.
Patent CA-1167720-A (CA)
Inventor: KAPLAN ROBERT A
IPC: F23D11/00
Filed: 1981-04-27
Granted: 1984-05-22
Abstract: ENERGY EFFICIENT HIGH STATIC             PRESSURE FLUID FUEL BURNER             ABSTRACT OF THE DISCLOSURE    A gun-type fluid fuel burner having a blast tube with a fuel dispensing nozzle therein includes a blower housing having a  scroll side wall and opposite end walls.  The housing side wall has an upwardly facing air discharge opening therein which communicates with the blast tube, and one of the end walls has an air inlet opening therein.          A squirrel cage blower wheel having a diameter more than twice its width is mounted for rotation in the housing and is directly driven by a two pole single phase alter-nating current motor mounted on one of the housing end walls, the blower drawing air through the input opening and discharging the air under pressure through the dis-charge opening.  A damper plate is mounted on the housing for movement between an open position and a position closing the discharge opening, the damper being moved to its open position in response to air pressure from the blower and returning to its closed position under the influence of biasing force.
Patent CA-1152059-A (CA)
Inventor: JOHANSSON KARL B V
IPC: F28F3/10
Filed: 1981-04-30
Granted: 1983-08-16
Abstract: ABSTRACT OF THE DISCLOSURE         Each plate of the heat exchanger has the usual groove for receiving a gasket; but the latter is secured to the plate at fastening points spaced from each other and located outside the sealing area defined by the groove.
Patent CA-1156787-A (CA)
Inventor: MCCULLOUGH JAMES D JR
IPC: C08L23/20
Filed: 1981-05-29
Granted: 1983-11-08
Abstract: Abstract of the Disclosure An impact resistant polypropylene prepared with a masterbatch comprising an uncured elastomer, a butene-l polymer and an optional co-modifier such as high density polyethylene possesses improved weld line strength and other properties.
Patent CA-1176843-A (CA)
Title: Combustion chambers
Inventor: ASTON GEOFFREY W
IPC: C03B19/10
Filed: 1981-08-14
Granted: 1984-10-30
Abstract: ABSTRACT     A vortex combustion furnace   for  the  production of glass beads is generally cylindrical and has an outlet flue   at   its upper end.  A burner at  the lower end burns a gas/air mixture.  Secondary air is introduced to the chamber through tangential  air inlets and creates a vortex within the chamber.  The vortex has a top-hat temperature profile with a central heating region  with a temperature in excess of 1000°C and a surrounding cooling region with a temperature not much above ambient.  Glass cullet injected into the chamber follows a spiral path in the vortex, is heated, melts to form glass beads, is then cooled and finally is collected after striking the wall of the chamber.
Patent CA-1172238-A (CA)
Inventor: CHIESA MATTEO
IPC: B66F3/00
Filed: 1981-08-17
Granted: 1984-08-07
Abstract: ABSTRACT OF THE DISCLOSURE            A lift for raising mopeds and motorcycles, in which a base (10) is provided to which there is pivoted a jack cylinder (14), the piston rod of which is pivoted to a frame (18, 19, 20, 22, 23) pivotable about a horizontal axis relative to said base. One end of the frame is provided with a motorcycle support (30, 33, 35) adaptable to the footboards of a motorcycle of the kind having an open U-shaped frame with footboards disposed substantially at the level of the base portion of the frame, the support, for this purpose, having an arm (42) pivotally connected to a cross member (35) so that the footboards and base portion of the U-frame of such a motorcycle can be clamped between the member (35) and arm (42), the support being also adaptable to the centre stand of a normal motorcycle, and providing a U-section member into which such a centre stand can be wedged.  The support (30, 33, 35) is rotatable about a horizontal axis parallel to the axis of rotation of the frame, around a pivot (29), in order that when the lift is used for a motorcycle of said kind having an open U-shaped frame and footboards, the motorcycle may be inclined to either of two angular positions on opposite sides of a vertical position, and may be located in any said position by means of a pin (32).
Patent CA-1184095-A (CA)
Inventor: WINTER JOSEPH
IPC: C30B29/64
Filed: 1981-09-17
Granted: 1985-03-19
Abstract: ABSTRACT OF THE DISCLOSURE An apparatus and process for recrystallization of thin strip material includes a device for electro-magnetically melting the thin strip material to provide a molten surface layer and a substantially solid core. An apparatus provides relative movement between the thin strip and the device for electromagnetically melting.  Also, an apparatus resolidifies the molten surface layer to provide a preferred crystal structure in the thin strip material.     In addition, a process for restructuring thin strip semi-conductor material is disclosed.  It comprises the steps of providing relative movement between the thin strip material and the heating station. The thin strip material is heated at the heating station to a desired temperature between the recrystallization temperature and the melting temperature.  The strip is maintained at the desired temperature whereby preferred recrystallization and stress relief occurs within the material.  In addition, the thin strip material may be elongated through elevating the temperature of the thin strip and/or increasing the longitudinal tension on the strip.
Patent CA-1168354-A (CA)
Inventor: FERNSLER RONALD E
IPC: H04N5/12
Filed: 1981-09-22
Granted: 1984-05-29
Abstract: RCA 75,539 Abstract of the Disclosure A television horizontal AFPC system is provided including a first AFPC loop responsive to horizontal sync signals for producing a noise immune signal in phase and frequency synchronism with the horizontal sync signals.  A second AFPC loop includes a phase detector responsive to a second horizontal frequency signal and flyback pulses, and produces horizontal deflection drive signals as a function of the phase relationship determined by the phase detector.  A delay circuit is responsive to the noise immune horizontal frequency signal for producing the second horizontal frequency signal for the phase detector with a phase delayed with respect to the noise immune signal.  A lowpass filter may be provided to delay the application of the flyback pulses to the second phase detector, its delay being chosen in accordance with the delay of the delay circuit so that a centered picture is produced on the television kinescope.
Patent CA-1140400-A (CA)
Inventor: BLUDWORTH ROBERT A
IPC: B63B21/56
Filed: 1981-10-06
Granted: 1983-02-01
Abstract: MARINE PUSH-TOWING TRANSPORTATION SYSTEM          Abstract of the Disclosure The present invention relates to a marine push-towing transportation system.  The system is comprised of a first vessel having a notch at one end with the notch having a pair of oppositely disposed wings.  A second vessel is provided having a bow portion and sides.  A coupling unit is provided for coupling the vessels when the second vessel is received in the notch between the wings.  The coupling unit includes at least three first coupling assemblies secured to one of the vessels.  Each of the first coupling assemblies includes at least one bearing member having opposed, substantially vertical bearing surfaces with one assembly being disposed for engagement generally forward of the notch and the other two being disposed for engagement generally rearward and on opposite sides of the notch.  At least three second coupling assemblies are secured to the other vessel, each being disposed so as to be engageable with the first coupling assemblies.  Each of the second coupling assemblies includes a gripping unit for frictionally engaging the bearing surfaces.  Each gripping unit is comprised of first and second gripping members, the first having a surface engageable with one of the bearing surfaces and the second having a surface engageable with the other of the bearing surfaces.  The first gripping member is mounted for movement in a direction generally transverse to the bearing surfaces.  A unit is provided for effecting engagement of the gripping units with the bearing surfaces.
Patent CA-1164336-A (CA)
Inventor: HANSEN ROY D- - STREET N E CAL
IPC: E21B17/10
Filed: 1981-10-19
Granted: 1984-03-27
Abstract: ABSTRACT OF THE DISCLOSURE         A device for centralizing a tool in a drill hole includes a hollow/ generally cylindrical casing which contains an elongated cavity and a plurality of flexible fingers extending outwardly from the casing for properly positioning the casing in a drill hole.  In use, the device is attached to a drill string beneath a tool to be centralized.  The casing is defined by two threadedly interconnected elements, which together define the elongated cavity, with a rod slidable in the cavity.  The rod includes holes for receiving the fingers.  By pressing the rod downwardly in-the cavity, the fingers are jammed against the bottom edges of aper-tures in the bottom tubular element.  Thus, the device is relatively simple, and can readily be assembled and disassembled.
Patent CA-1219995-A (CA)
Inventor: OLSON ALAN J
IPC: C08F6/06
Filed: 1981-11-16
Granted: 1987-03-31
Abstract: RECOVERY OF CHLORINATED POLY(VINYL CHLORIDE) ABSTRACT OF THE DISCLOSURE A process is disclosed for recovering chlorinated poly(vinyl chloride) ("CPVC") which is dissolved in liquid chlorine ("Cl2") to form a CPVC solution. CPVC is recovered by adding the CPVC solution to a halogenated lower alkane ("HLA"), which is simultaneously an excellent solvent for liquid Cl2 and a very poor solvent for CPVC. This peculiar property causes the CPVC to be precipitated from the three-component mixture as a finely divided solid with different morphological properties than if the HLA was added to the CPVC solution. The solid CPVC precipitated may then be separated from the solution of liquid Cl2 in the HLA. This solution of Cl2 in HLA is further separated into its component liquids, namely HLA and liquid Cl2 which are then each reused.
Patent CA-1149549-A (CA)
Inventor: MINATO ICHIRO
IPC: C08G59/00
Filed: 1981-11-25
Granted: 1983-07-05
Abstract: ABSTRACT             The invention disclosed herein is a method for hardening an epoxy resin which comprises either (a) mixing the epoxy resin with a compound of the formula:                               wherein   is   or    or (b) mixing the epoxy resin with a prepolymer obtained by reacting one mole of the diglycidyl ether of bisphenol A with two or more moles of a compound of the formula:                               wherein   is   or   .          Epoxy resins hardened with the above compound, or prepolymer, have excellent mechanical properties at high temperatures.
Patent CA-1207486-A (CA)
Inventor: SCHAEPEL DIETMAR
IPC: A61K6/90
Filed: 1982-01-13
Granted: 1986-07-08
Abstract: ABSTRACT OF THE DISCLOSURE A polyol gel is made from 15-62 wt. % (based on the sum of polyurethane matrix plus dispersing agent) of a high molecular weight covalently cross-linked poly-urethane matrix; 85-38 wt. % (based on the sum of polyurethane matrix plus dispersing agent) of a liquid dispersing agent which is firmly bonded to the matrix; and optionally, active ingredients, fillers, additives, catalysts, and mixtures thereof.  The liquid dispersing agent is a polyhydroxyl compound having a molecular weight of between 1,000 and 12,000 and an OH number between 20 and 112.  This dispersing agent should have virtually no hydroxyl compounds having a molecular weight below 800 present.  These gel compositions may be used to make mold impressions and highly stable active-ingredient releasing compositions.