baber/WOPTO huggingface dataset:
Patent CA-2045134-A1 (CA)
Inventor: SASAMOTO TAI
IPC: D01F6/62
Filed: 1990-11-15
Abstract: A rubber-reinforcing polyester fiber composed of a polyester prepared by using 30 to 150 ppm as antimony of an antimony compound and 5 to 60 ppm as germanium of a germanium compound as the polymerization catalyst.  The fiber is characterized in that the terminal carboxyl group content is not larger than 25 eq/ton, diethylene glycol content (DEG) is not larger than 1.3% by weight, the intrinsic viscosity (IV) is at least 0.85, the sum (S) of the intermediate elongation and the dry heat shrinkage is lower than 8%, the product between strength and elongation (T~E) is at least (2S + 5), and the terminal modulus (TM) is not higher than 40 g/d.  The polyester fiber is used as a rubber reinforcement.
Patent CA-2046127-A1 (CA)
IPC: C08J9/12
Filed: 1991-07-03
Abstract: Foam sheets of high compres-sive strength are produced by extruding a mixture of a styrene polymer and from 5 to 16 % by weight of a blowing agent mixture containing a)   from 3 to 70 % by weight of an alcohol or ketone having a boiling point of from 56 to 100°C, b)   from 5 to 50 % by weight of carbon dioxide and c)   from 0 to 90 % by weight of a saturated C3- to C5-hydrocarbon and/or of a hydrogen-containing chloro-fluorocarbon or fluorinated hydrocarbon boiling at from -30° to +30°C.
Patent CA-2047040-A1 (CA)
Title: Ion beam milling
Inventor: EVENSON ROBERT S
IPC: F16J9/12
Filed: 1991-07-15
Abstract: ION BEAM MILLING OF SEAL RINGS                 Abstract of the Disclosure Fluid seals for use in rotary fluid machines (such as pumps, compressors or turbines) are disclosed.  The seals contain a pair of seal rings.  At least one of the seal rings contains indentations (or grooves) in the sealing surface which are configured in a geometric pattern.  The grooved seal ring is characterized in that an ion beam milling process is used to form the grooves in the sealing surface.
Patent CA-2048123-A1 (CA)
Title: Transmission shaft carrying at least two gears
Inventor: FLETCHER MELVERN W
IPC: F16H57/00
Filed: 1991-07-30
Abstract: A gear shaft assembly (42) is provided including a shaft (5) having a first set of gear teeth (6) formed integrally in a second portion (51) thereof and extensions of said teeth extend axially over an adjacent reduced diameter second portion (50) for receivably mounting a second gear (7) for rotation with the shaft.
Patent CA-2049805-A1 (CA)
Title: Method for the manufacture of flexible polyurethane foam
Inventor: JOURQUIN LUCIEN
IPC: C08J9/30
Filed: 1991-08-23
Abstract: ABSTRACT      "Method for the manufacture of flexible polyurethane foam"                   The present invention relates to a method for the manufacture of flexible polyurethane foam of a density between 35 and 70 kg/m3 and having improved comfort properties, wherein a reaction mixture is composed containing at least a polyether polyol of equivalent weight between 1400 and 2800 and having a primary hydroxyl group content of more than 50 %, an organic polyisocyanate, a catalyst and 0.5 to 1 % by weight water with respect to the total foam weight and wherein, in order to allow the reaction mixture to expand up to said density by means of this limited amount of water and by means of up to 1.5 mole of a physical blowing agent per mole polyol, the reaction mixture is frothed mechanically and/or the reaction mixture is allowed to expand under a reduced pressure.
Patent CA-2049924-A1 (CA)
Inventor: BERKELEY JAMES E
IPC: B27G5/02
Filed: 1991-01-11
Abstract: The present invention provides a woodworking worktable assembly which may be used in combination with a multi-purpose woodworking tool.  The worktable assembly includes a worktable having a work supporting surface and an elongated slot formed therein.  A guide insert is positioned within the slot and includes a horizontal base portion and opposing side arms for guiding a guide bar portion of a miter guide.  Lip portions extend inwardly toward the center of the insert from the upper ends of the arm portions and serve to prevent the miter guide from being lifted vertically away from the slot.  In addition, the base of the insert is spaced from the lower portion of the slot by foot portions extending along the length of either side of the base and fasteners are provided at the center of the insert for drawing the base toward the lower slot surface.  Thus, by tightening the fasteners such that the base is drawn toward the slot surface, the arm portions are caused to pivot inwardly such that the tolerance between the insert and a miter guide received therein may be adjusted.
Patent CA-2050842-A1 (CA)
Title: Swath fluffer
Inventor: PALMIER ACHILLE J
IPC: A01D65/04
Filed: 1991-09-06
Abstract: SWATH FLUFFER ABSTRACT OF THE DISCLOSURE A swath fluffer for a swathed crop may be connected to a three point hitch to be pulled or pushed across a field. An optional tow bar arrangement is provided. The fluffer has a pick up for picking up a swath of crop and delivering it rearwardly to a series of tapered rotors arranged in an arcuate array immediately behind the pick up. The rotors are cruciform in cross section and have resilient strips along the outer edges of their ribs. The rotor and pick up speeds can be controlled independently by the operator to accommodate different crop conditions. In addition, the angle of the rotor array with respect to ground may be altered to alter the aggressiveness of the rotors. The rotors act to expand the swath without rolling, twisting or producing other significant alterations in it.
Patent CA-2052552-A1 (CA)
Inventor: KOHYAMA MASAKI
IPC: C08J5/18
Filed: 1991-10-01
Abstract: The ethylene/pentene-1 copolymer composition comprises an ethylene/pentene-1 copolymer satisfying specific request and an ethylene/vinyl acetate copolymer.  This composition has excellent balance between impact resistance and tear properties, excellent transparency and good hot tack properties, and are particularly useful for packing films.
Patent CA-2053961-A1 (CA)
Title: Substituted thieno [3,2 -b] pyran-5,7-diones
Inventor: BERTRAM HEINZ J
IPC: C07D495/04
Filed: 1991-10-22
Abstract: Substituted thieno[3,2-b]pyran-5,7-diones A B S T R A C T            Novel substituted thieno[3,2-b]pyran-5,7-diones of the general formula (I)                           (I) Processes for their preparation and their use as herbicides and as plant growth regulators and novel intermediates of the formula (VI) (VI)   (in which R1,  R2,  X,  Y  and  Z  have  the meaning given  in the description).     Le A 27 926
Patent CA-2057022-A1 (CA)
Inventor: BELL RICHARD E
IPC: F41F3/077
Filed: 1990-09-14
Abstract: A missile (12) is housed in a launcher (11) from which it is launched by efflux gases from a thrust motor (13) of the missile (12). A closure device (18) is secured by retaining screws (26) in a position in which it closes off the reaer end (16) of the missile (12) and embodies a thrust generating cartridge (35) which is fired to propel the device clear of the rear end of the missile. The closure device comprises a domed cap (19) and base plate (20) and the cartridge (39) generates thrust first to release the cap (19) and plate (20) from the screws (26) and then to displace the domed cap (19) relative to the base plate (20) to bring them to a disposition in wich the momentum of the domed cap (19) is imparted to the complete clo-sure device (18) thereby to propel the cap (19) and the plate (20) together at velocity determined by the mo-tion of the domed cap (19) relative to the base plate (20).
Patent CA-2058039-A1 (CA)
Title: Folding shower door
Inventor: COUSINEAU ROBERT
IPC: A47K3/00
Filed: 1991-12-18
Abstract: ABSTRACT      An enclosure of a shower stall or bathtub alcove which includes a frame and a door or doors.  The frame is composed of upper and lower housings spaced by side jambs.   The housings have single tracks.  There is at least one door which is composed of double window panels connected by vertical hinges and handle panels at either end of each door, also connected by vertical hinges.  The vertical hinges allow the door to fold.  The door is supported within the frame and the panels are allowed to slide along the upper and lower tracks by trolleys  at either  extremity  of  the vertical hinges connecting double window panels and the vertical hinges connecting the handle panels to the double window panels.
Patent CA-2058144-A1 (CA)
Title: Process for the production of threo-4-alkoxy-5-(arylhydroxymethyl)-2(5h)-furanones
Inventor: LAFFAN DAVID
IPC: C07D307/60
Filed: 1991-12-19
Abstract: A process is disclosed wherein threo-4-alkoxy-5-(arylhydroxymethyl)-2(5H)-furanones are obtained by condensation of 4-alkoxy-2(5H)-furanones with benzaldehydes in the presence of a lithium hydroxide catalyst and without contamination by the corresponding erythro stereoisomers.      The condensation is preferably performed in aqueous acetonitrile and the product is precipitated from the alkaline reaction mixture by the addition of water. The products produced according to the process of the present invention are known pharmacologically active ingredients with anticonvulsive or antiepileptic action.
Patent CA-2059594-A1 (CA)
Title: Pipe Coupling
Inventor: BLOSE THOMAS L
IPC: F16L15/00
Filed: 1992-01-17
Abstract: A pipe coupling or connection comprises  a  female coupling component and a mating male coupling component.  Each component is matingly threaded for coupling engagement, and each is provided with an adjacent frusto-conical sealing surface.  The sealing surface is provided with a controlled surface roughness, viz. very shallow fine surface variations, preferably formed as microgrooves at a pitch small relative to the pitch of the threads.  The slope of the frusto-conical surface of the sealing area of the male component is slightly mismatched with that of the sealing area of the female component to simulate the bearing force vs. axial distance characteristic of shrunk-fit circular cylindrical sealing surfaces.  The slight mismatch enables the sealing pressure to be above a design minimum throughout the entire sealing area yet higher at each end of the sealing area.          As the coupling is assembled, thread interference in the vicinity of the sealing surface lags the occurrence of  interference between the sealing surfaces.  Load threads are provided with negatively inclined load flank faces.   The slope of the load thread pitch line of the male element is slightly steeper than the slope of the load thread pitch line of the female element.
Patent CA-2059646-A1 (CA)
Inventor: GAPE ALAN F
IPC: A61H33/02
Filed: 1990-08-02
Abstract: The fixed-direction jet units (1) of a whirlpool-bath system (Figures 1 and 2) each include a nozzle (18) for sup-plying water under pressure from a tube-section (17) to an outlet (12) across an air gap (20) within a chamber (19). The unit (1) is clamped to the bath-wall (14) between a flange (16) of the outlet (12) and the unit housing (15). Issue of wa-ter from the nozzle (18) across the gap (20) into the axially-aligned stem (13) of the outlet (12), draws air into the cham-ber. (19) from an inlet pipe (21) that is coupled to a distribu-tion manifold (7) of an air-supply controller (9) (Figures 1 and 2) by an individual supply tube (8). A circumferential skirt (22) projects backwardly from the stem (13) to shroud the gap (20) over a frusto-conical nose-part (23) of the noz-zle (18), so that air is constricted to enter the gap (20) through the annular space (24) between them: The constric-tion evens out air flow around the stream of water from the nozzle (18), enhancing small-babble distribution in the stream and the consequent foaming and turbulence of the jet discharge from the outlet (12). The cross-sectional area of the pathway for air between the nozzle nose-part (23) and the skirt (22) increases towards the gag (20), but may be sub-stantially uniform.
Patent CA-2059858-A1 (CA)
Inventor: GUMB BEVERLEY W
IPC: H04M1/02
Filed: 1992-01-22
Abstract: A planar elastomeric layer located between operating buttons and circuitry in a telephone base. The layer has button actuated regions which project above the plane of the layer to different heights so as to compensate for a change in distance of the outer surface of the telephone base whereby buttons of equal heights project for equal heights from that surface. The inventive concept is useful when requiring, for instance, a convex or concave outer surface to the base, but while still requiring the simple planar concept for the elastomeric layer.
Patent CA-2060224-A1 (CA)
Title: Sprinkler and edging apparatus
Inventor: ABBATE JOSEPH P SR
IPC: B05B15/06
Filed: 1992-01-29
Abstract: ABSTRACT A sprinkler and edging apparatus includes an extruded plastic section having a tubular portion and a depending web portion with a flange, the tubular portion having a pattern of slits on a front side thereof to create a mist for watering landscape plants when water is passed through the tubular portion. The web portion is provided with notches at each end which accommodate clamps for connecting adjacent sections together, for connecting the water supply hose thereto, and/or for plugging a free end of the section against water leakage.                             - i -
Patent CA-2060477-A1 (CA)
Inventor: LAUWERS EDDY J
IPC: F23G5/46
Filed: 1992-01-31
Abstract: A process for controlling the temperature and flame front in a liquid waste incinerator comprising:  dispersing fluid wastes into the flame of at least one oxygen/fuel burner to incinerate the waste in and around the flame, wherein flame energy is regulated by adjusting the fuel to the low heating value waste ratio to control the flame front and temperature in said incinerator.  The flue gas resulting from burning the waste may be used to heat, possibly concentrate partially and/or evaporate (if liquid is present) the fluid waste prior to dispersing it into the flame.
Patent CA-2064264-A1 (CA)
Title: Jet ventilator system
Inventor: ATKINS ROGER L
IPC: A61M16/00
Filed: 1992-03-27
Abstract: ABSTRACT OF THE DISCLOSURE A jet ventilator system for assisting a person's respiration includes a source of gas under pressure, a tracheal tube for insertion into the mouth and throat of the person, a jet nozzle disposed in the tracheal tube for directing gas pressure pulses toward the end of the tracheal  tube  inserted  into  the  person's  mouth,  a primary delivery conduit coupled between the source of gas and the tracheal tube for delivering gas under pressure to the jet nozzle, a control unit coupled to the primary delivery conduit for selectively varying the flow rate through the jet nozzle, and an exhaust conduit coupled to the tracheal tube for carrying air exhaled by the  person.    The  control  unit  includes  a  control delivery conduit coupled between the primary delivery conduit and the tracheal tube for delivering gas under pressure  from  the  primary  delivery  conduit  to  the tracheal tube to a location near the jet nozzle, and an inhalation  valve  disposed  in  the  control  delivery conduit for selectively varying the pressure of gas flowing through the control delivery conduit to the tracheal tube and thus the gas flow rate through the jet nozzle.   In this manner the inhalation valve controls the  pressure  pulses,  both  magnitude  and  frequency, present in the tracheal tube which are providing the ventilation for the person.
Patent CA-2065984-A1 (CA)
Title: Exposure control apparatus of camera
Inventor: SATO OSAMU
IPC: G03B7/00
Filed: 1992-04-14
Abstract: An exposure control apparatus of a camera in which at least one of a pair of exposure factors including a shutter speed and a diaphragm value is variable, including an exposure factor setting device for setting at least one variable exposure factor, and a limit value setting device for varying and setting at least one of upper and lower limit values of the variable exposure factor.
Patent CA-2067322-A1 (CA)
Title: Tundish with improved flow control
Inventor: HEASLIP LAWRENCE J
IPC: B01D29/35
Filed: 1992-04-27
Abstract: TUNDISH WITH IMPROVED FLOW CONTROL          ABSTRACT OF THE DISCLOSURE             A tundish includes first and second flow control walls which define a flow receiving space.   A plurality of outlets are located in the bottom of the tundish and toward the front thereof.   Each flow control wall includes a plurality of openings located closer to the back of the tundish than toward the front and located closer to the bottom of the flow control wall than the top thereof.
Patent CA-2070922-A1 (CA)
Inventor: PATTERSON JON M
IPC: F02D11/02
Filed: 1992-06-10
Abstract: THROTTLE CONTROL Abstract of the Disclosure A pivotal throttle control lever having a plurality of primary flaps with teeth formed therein in an arc about the pivot axis of the lever.  A plurality of ribs, each corresponding to a respective primary flap are provided for engaging the teeth as the lever is pivoted by the operator. The ribs deflect the primary flaps only as the teeth engage the ribs during pivotal shifting of the lever.  The ribs are offset within respective spaces between the teeth such that the primary flaps alternate deflecting as the ribs encounter the teeth.  A choke flap is formed integrally with the lever and deflects as a choke tooth abuts a first portion of the control quadrant.  The choke tooth is positionable within an opening for securing the lever in the choke mode.  The resistance to shifting created by the choke tooth in abutment with the first portion is great than the resistance created by the teeth encountering the ribs, such that the operator senses the position of the lever during shifting.
Patent CA-2071927-A1 (CA)
Title: Bobines
Inventor: SALVAGE RICHARD J
IPC: H01F27/02
Filed: 1990-11-26
Abstract: Cette invention se rapporte à des montages de bobines et en particulier, mais pas exclusivement, à des montages de transducteurs acoustiques. Ainsi un transducteur (10) comprend un boîtier (11) dans lequel se trouve une bobine (16) montée sur un circuit souple qui reçoit la bobine (16) en vue de sa manipulation lors de son montage et qui permet des configurations diverses à l'intérieur du boîtier (11). On décrit également une méthode permettant de bobiner l'enroulement (16) et de le fixer sur le support (17).
Patent CA-2075554-A1 (CA)
Inventor: PAQUETTE JEAN-PAUL
IPC: E04D3/24
Filed: 1992-08-07
Abstract: Flat-roof roofing with tapered corrugated sheet ABSTRACT OF THE DISCLOSURE            A   roofing  assembly  for   shieldingly  covering  the planking of a  flat roof.  At least one  water drainage outlet is provided  about a portion of  its surface.   The roofing assembly comprises:  (a)  a thick, substantially flat insulating batt; (b) top waterproofing membranes, gravel  layer and cardboard layer;, and  bottom  waterproofing  membranes  and  gypsum  layer,  being respectively applied  on top and  bottom walls of the insulating batts; (c)   a rigid,  corrugated sheet member,  applied directly under the bottom  gypsum layer and supporting the insulating batt and  destined to be  applied directly against  the roof planking.          The corrugated sheet member is formed by a thin rigid sheet, this thin sheet undulating in  a wave-like pattern along  a lengthwise direction, whereby the corrugated sheet member has a depth formed by the transverse  gap between  a successive pair  of trough  and crest of the wave-like  thin sheet.  Hence, the  undulating sheet member depth tapers toward  the water  drainage outlet  port, so that  rainwater falling over the roofing  assembly will be biased under gravity toward the water drainage outlet.
Patent CA-2076150-A1 (CA)
Inventor: MOTOHASHI TERUYUKI
IPC: H04W88/02
Filed: 1992-08-14
Abstract: A data display radio pager for producing, on receiving a signal including a preassigned address number, an alert and displaying a message also included in the signal on a display. When the radio pager receives a signal including a message with time data, it again alerts the user of the radio pager and displays the message on the display at a particular time based on the time data contained in the message.
Patent CA-2078451-A1 (CA)
Inventor: MATTIS JOHN S
IPC: H01R4/24
Filed: 1991-03-26
Abstract: The invention provides for a modularized terminal block and an improved method of manufacturing the modular block. The block permits the connection of a plurality of drop wires or other devices in a reversible manner through the use of a standardized plug in module configuration. The module can be optimized for a given drop wire range which then uniformly connects to the base block through a standardized demateable contact.
Patent CA-2082212-A1 (CA)
Title: Apparatus and three phase induction motor starting and stopping control method
Inventor: AGUT SANZ JUAN
IPC: H02P3/18
Filed: 1992-11-05
Abstract: ABSTRACT Apparatus and three phase induction motor starting and stopping control method The invention refers to an apparatus and starting and stopping control method of three phase induction motors and consists of carrying out the striking of the static switches simultaneously two by two, establishing a synchronization with a determined point of the compound voltage wave corresponding to the phases that are struck, cyclically repeating in the three phases, determining the operating condition in dis-continuous conduction, with instants without current in any phase.       The apparatus basically comprises some voltage trans-ducers connected between the input and output terminals of the static switches placed in each phase.  At least in one of the phases there is a passing by zero detector connected, a striking control device, an electromotive power detector and an intensity transducer connected to the corresponding con-verter.
Patent CA-2083116-A1 (CA)
Title: Mat forming process and apparatus
Inventor: BUCKLEY DANIEL T
IPC: B29C35/10
Filed: 1992-11-17
Abstract: A mat of reinforcement material, such as glass fiber reinforcement material, is manufactured by forming a layer of continuous strand or chopped fibers on a conveyor belt and conveying the layer along a defined path. At a location downstream of the application of the layer, the layer of fibers is coated with a binder in the range of 2.0---10.0 weight percent, either a microwave-sensitive binder or an ultraviolet-sensitive, binder and the binder-coated layer is fed into a radiation tunnel which includes a compression stage and a curing stage. In this radiation tunnel, the binder-coated layer is compressed to a desired density/thickness ratio and cured, the compression and curing occurring in stages, and the resulting mat is taken from the conveyor belt and wound up for storage. The curing energy is supplied as the selected microwave or ultraviolet radiation and the radiation is applied between sets of compression rollers or through compression rollers or webs which are transparent to the specific electromagnetic energy.
Patent CA-2084206-A1 (CA)
Inventor: PRAEG WALTER F
IPC: B22D27/02
Filed: 1990-06-07
Abstract: An apparatus for confining molten metal (12) with a horizontal alternating magnetic field. In particular, this invention employs a magnet (24) that can produce a horizontal alternating magnetic field to confine a molten metal (12) at the edges (30a, 30b) of parallel horizontal rollers (10a, 10b) as a solid metal sheet (18) is cast by counter-rotation of the rollers (10a, 10b).