baber/WOPTO huggingface dataset:
Patent CA-2060291-C (CA)
Title: Image processing apparatus
Inventor: SEMASA TAKAYOSHI
IPC: H04N1/405
Filed: 1992-01-29
Granted: 1996-07-09
Abstract: An image processing apparatus for outputting an image which contains different kinds of multi-level signals for letters, figures, photographs, screened-halftone, etc.  The apparatus comprises a screened-halftone pattern detecting circuit and a continuous-tone pattern detecting circuit for detecting a screened-halftone pattern and a continuous-tone pattern, respectively, by using neighboring pixels of the target pixel, counters for counting UP/DOWN in accordance with the outputs of the detecting circuits, a filter for switching the filtering coefficients of the image signal in multiple stages in accordance with the outputs of the counters and a quantizer for bi-level-quantizing the output of the filter.  It is thus possible to produce an image having a good quality free from deterioration due to the rapid switching of region judgements and bi-level-quantizing methods.
Patent CA-2068043-C (CA)
Title: Logic simulator
Inventor: KOMODA MICHIO
IPC: G06F11/25
Filed: 1992-05-05
Granted: 1998-04-21
Abstract: There is disclosed a logic simulator having a wiring load  extraction  function  which  is  capable  of  accurately calculating characteristic data of wiring loads when wirings are shortly spaced.  A wiring region dividing unit (1) and a wiring load model generator (3) convert a wiring layout data (D10) into a wiring load model circuit data (D12) including wiring load models respectively for divided wiring regions into which a wiring is divided as a function of the number of adjacent wirings.   A wiring load distributed constant calculator  (4)  extracts  characteristic  parameters  in accordance with the number of adjacent wirings of each of the wiring load models in the circuit data (D12) from a unit length wiring characteristic parameter group (D13) including different characteristic parameters in accordance with the number of adjacent wirings, to output a distributed constant circuit data (D14) including the characteristic data of the respective  wiring  load  models  as  a  function  of  the characteristic  parameters  and  the  wiring  lengths  of  the respective   wiring   load   models.      This   enables   the characteristic data of the wiring loads to be calculated with high accuracy.
Patent CA-2075722-C (CA)
Inventor: BISPING HEINZ
IPC: F16B13/14
Filed: 1992-06-18
Granted: 1995-10-17
Abstract: An expansion dowel is formed of an axially elongated expansion member and an expansion element insertable into a bore through the expansion member.  The expansion member has two axially extending first slots located diametrically opposite one another and open at one end of the member.  Two axially extending second slots are located in the expansion member offset circumferentially by 90° from the first slots.  The second slots are closed at their opposite ends.  The first and second slots partially overlap in the axial direction, so that the expansion member is radially expandable in the overlapping region of the slots, while the expansion element is prevented from moving off center during the expanding operation.
Patent CA-2075900-C (CA)
Inventor: BRUNGS ANDERS
IPC: E21B17/07
Filed: 1991-02-15
Granted: 2003-12-02
Abstract: The present invention relates to a down-the-hole drill tool, said drill tool be-ing adapted to drill a hole in advance of a trailing casing tube (15), said drill tool in-cluding a central pilot bit (12) and a reamer means (14) and a guide means (17; 17'; 17"; 17"'; 17"", 37) for guiding the drill tool and said casing tube (15) relative to one another, and a shaft (11; 11'; 11"; 11"') that is adapted to be connected to a down-the-hole hammer (23). The invention also relates to a guide means and a one-piece unit per se. In known drill tools of the above-mentioned type the thread con-nection, e.g. between the guide means and the portion supporting the reamer, is the weak point. Therefore it is an aim of the present invention to present a structural de-sign of a drill tool of the type in question that avoids thread connections in portions of the drill tool that is subjected to high bending forces. The characterizing features of the present invention are that the shaft (11; 11'; 11"; 11"') and the pilot bit (12) is a one-piece unit and that the guide means (17; 17'; 17"; 17"'; 17"", 37) is deta-chably mounted on the sahft (11; 11'; 11"; 11"').
Patent CA-2081385-C (CA)
Title: Continuous steel heating furnace featuring free setting of an in-furnacetemperature pattern
Inventor: TADA TAKESHI
IPC: F27B9/02
Filed: 1992-10-28
Granted: 1998-07-28
Abstract: The present invention relates to a steel heating furnace which permits free setting of the in-furnace temperature pattern or gradient as desired. A steel heating furnace includes at least one or more burner systems for regenerative heating, each being arranged to supply combustion air and exhaust combustion gases through a regenerative bed. The burner systems are disposed in each of a plurality of zones which are defined within a single furnace body, or in each of the unit furnaces. The unit furnaces are interconnected to form a single furnace body. The amount of combustion may be controlled for each zones or each unit furnaces to enable freevariation of in-furnace temperature per zone or per unit furnace so that a desired in-furnace temperature pattern gradient in the entire furnace may be set easily. The steel heating furnace may be constructed with the required length and in-furnacetemperature pattern, by interconnecting the unit furnaces.
Patent CA-2083997-C (CA)
Inventor: RAJALA KARI
IPC: B23B39/16
Filed: 1992-11-27
Granted: 1996-06-18
Abstract: A method and device for drilling holes into a mantle of a cylinder used in a paper machine are disclosed.  The drilling device includes a base frame and a spindle box displaceable on support of the base frame towards a cylinder mantle to be machined.  The spindle box includes a number of drill bits and a drive motor arranged to move the spindle box to produce a feed movement for the drill bits.  In the spindle box, a second motor is arranged to rotate the drill bits simultaneously.  The rotating drive of the drill bits is obtained by means of the second motor which rotates a drive belt arranged to pass via drive pulleys of the drill bits so that the drive pulleys and drill bits are rotated.  Each drill bit comprises a horizontally displaceable slide frame.  Coupling devices are arranged between each displaceable slide frame and the spindle box, by means of which each slide frame can be locked in the desired horizontal position so as to adjust the positions of the drill bits.
Patent CA-2086852-C (CA)
Title: Oxidation of toner compositions
Inventor: SACRIPANTE GUERINO G
IPC: G03G9/08
Filed: 1993-01-07
Granted: 1999-10-05
Abstract: A process for the preparation of toner compositions which comprises the oxidation and metal chelation of the surface thereof; and a process for the preparation of toners which comprises the oxidation and metal chelation of the surface thereof, and subsequently coalescence by the absorption or sticking thereto of a fluoro containing polymer.
Patent CA-2087841-C (CA)
Title: Secure over-the-air registration of cordless telephones
Inventor: D AMICO THOMAS V
IPC: H04L9/32
Filed: 1991-08-02
Granted: 1997-09-23
Abstract: A method of registration of a portable unit that may be utilized in a communication system that comprises a network controller, having a data base for storing portable identification numbers, a base station, and a portable unit, wherein a subscriber communicates to the network controller a first information set which comprises subscriber qualifying information, the portable identification number, and a key code that has been entered into the portable (100), and wherein the subscriber has entered a link identification number for over-the-air registration into a memory within the portable unit (102).
Patent CA-2096722-C (CA)
Title: Method and apparatus for enhancing gas turbo machinery flow
Inventor: WATTS J ALAN
IPC: F01D25/30
Filed: 1991-11-15
Granted: 2003-06-10
Abstract: An improved efficiency flow enhancement method and system is provided for a duct system downstream of blading (24) in a turbomachine, the system comprising the blading, a duct (12) leading from the blading, two or more passages de-fined at least in part by partitions (26) which take flow from within the duct, or from across its outlet (35), or from within four duct widths downstream of its outlet, the partitions (26) defining at least partially separated flow passages intended for flows leaving the expanding duct of generally different me-chanical energy, one or more zones of significant pressure drop for the flows of higher energy, one or more passages of comparatively less pressure drop for the passages with flows of lower mechanical energy, one or more zones where the flows are rejoined, and an outlet.
Patent CA-2099627-C (CA)
Title: Digital image signal processing apparatus
Inventor: YANAGIHARA NAOFUMI
IPC: H04N21/434
Filed: 1993-06-24
Granted: 2005-08-23
Abstract: Alternating current coefficients in a block of orthogonal transform coefficients representing a digital image are quantized with a quantization step size selected with regard to whether the block represents motion or a still image, the fineness of the pictorial pattern in the image, the position of the coefficients in the block, and whether the coefficients represent luminance or chrominance information in the image. The fineness of the pictorial pattern is determined in accordance with the number of alternating current coefficients that exceed a first relatively small threshold value. If any of the alternating current coefficients exceed a second relatively large threshold value, the block is considered to have a high activity, that is, a fine pattern, and so is quantized with a large quantization step.
Patent CA-2104272-C (CA)
Inventor: REID PAULA E
IPC: B65H3/48
Filed: 1993-08-17
Granted: 1999-01-12
Abstract: A bottom vacuum corrugated feeder (BVCF) includes a tray for supporting a stack of documents. The tray is angled downhill relative to the feeding direction of the documents such that the leading edge of the stack is urged to a common stop member. The tray also includes a single side guide for aligning one side edge of the stack. A stack height sensor sends a signal corresponding to stack height to a controller which in turn controls voltage to be applied to a DC motor controlled blower based on a predetermined ratio of air flow pressure to stack pressure. The structure enables intermixed size document feeding in a BVCF.
Patent CA-2105112-C (CA)
Inventor: BRITTON THOMAS C
IPC: C07H19/06
Filed: 1993-08-30
Granted: 2005-08-02
Abstract: A process for increasing the amount of beta-anomer nucleoside from an alpha-anomer nucleoside or undesired anomeric mixture of nucleosides by contacting the anomer or anomeric mixture with a hydroxide base in an organic solvent.
Patent CA-2108633-C (CA)
Title: Rail mounted fall arrest line anchor
Inventor: O'ROURKE MICHAEL J
IPC: A62B35/00
Filed: 1993-10-18
Granted: 1996-06-11
Abstract: A fall arrest line anchor for releasably securing to a rail of a railway.  The anchor comprises a pair of plates, each comprising an upper, flat portion and a lower portion curved so that, when the plates are in anchoring position with their flat portions secured together in abutting relationship, the curved portions circumscribe a sufficient portion of the crown of the rail so  as  to prevent unpurposeful  disengagement,  a  plurality of apertures in the flat portions alignable, when the plates are in anchoring position,  to releasably receive means to attach and secure the plates together and a hook of a workmen's fall arrest line.
Patent CA-2111255-C (CA)
Inventor: SEDUSHAK DONALD J
IPC: B66C19/00
Filed: 1993-12-13
Granted: 1997-07-15
Abstract: A crane comprising a horizontally extending frame having a longitudinal axis, the frame being supported above the ground for horizontal movement generally perpendicular to the longitudinal axis; a trolley supported on the frame for movement generally along the longitudinal axis; a mechanism for engaging and disengaging a load; a hoist mounted on the trolley for causing vertical movement of the mechanism; and a carrier connected to the frame for movement with the frame, the carrier being positioned such that the trolley, hoist and mechanism are operable to deposit a load in the carrier.
Patent CA-2113980-C (CA)
Inventor: KENNEDY EUGENE D
IPC: B01D46/10
Filed: 1994-01-21
Granted: 2000-06-27
Abstract: There is provided a fiber bed for removing liquid aerosols and soluble solids from a gas stream in a fiber bed mist eliminator. The fiber bed is in the form of a flexible mat having a void fraction of greater than about 0.89 and greater than about 700 net collection targets. The mat comprises a layer of collecting fibers having an average fiber diameter between about 1 and about 5 µm. The collecting fibers are stabilized by a plurality of stabilizing fibers which penetrate into and are disposed interstitially within the collecting fiber layer. The improved fiber bed of the present invention is field-replaceable and, by utilizing fibers having a small average diameter, the thickness of the fiber bed may be reduced.
Patent CA-2118172-C (CA)
Title: Galanthamine derivatives, a process for their preparation and their use as medicaments
Inventor: KOSLEY RAYMOND W JR
IPC: C07D491/10
Filed: 1994-10-14
Granted: 2000-01-04
Abstract: This invention relates to compounds of the formula   (I) wherein R1 is hydrogen, (C1-C12)alkylcarbonyl, (C1-C12)alkoxycarbonyl, aryl(C1-C12)alkylaminocarbonyl, mono(C1-C18)alkylaminocarbonyl or di(C1-C8)alkylaminocarbonyl;      R2 is (C1-C12)alkylcarbonyloxy, aryl(C1-C4)alkylcarbonyloxy, (C1-C12)alkoxycarbonyloxy), arylcarbonyloxy, hydroxy, (C1-C6)alkoxycarbonyl(C1-C6)alkoxy or hydroxy(C1-C10)alkoxy; and R3 is hydrogen, halo or (C1-C4)alkyl; or a pharmaceutically acceptable addition salt thereof; with the proviso that when R2 is hydroxy, R1 and R3 are not both hydrogen; which are useful for alleviating various memory dysfunctions characterized by decreased cholinergic function such as Alzheimer's disease. Pharmaceutical compositions containing the compounds and methods for making and using the compounds are also encompassed within the present invention.
Patent CA-2122999-C (CA)
Inventor: HOOK JOHN LAURENCE
IPC: E05B55/00
Filed: 1992-11-12
Granted: 2003-05-27
Abstract: A releasable snib mechanism for a door latch assembly includes a body (19, 19a), and a first rotary member (30) disposed in the body and adapted to be engaged by and rotated with a door latch spindle. A snib member (34) is mounted on the body for move-ment between a snibbing position in which the first rotary member (30) is snibbed against rotation and a freeing position in which the first rotary member is free to rotate with the door latch spindle. A second rotary member (32) is disposed in the body adjacent the first rotary member (30) and is adapted to be en-gaged by and rotated by a shaft means. This second rotary member (32) is arranged upon initial rotation of the shaft means to move the snib member (34) from its snibbing position to its freeing position and upon continued rotation of the shaft means to pro-vide rotation to the first rotary member (30). According to one aspect of the invention the first and second rotary members include respective first (56) and second (66) formations which are disposed mutually adjacent when the rotary members (30, 32) are at a predetermined relative position, for cooperating with a complementary snib formation (54) on the snib member (34). The first for-mation (56) and snib formation (54) affect the aforementioned snibbing of the first rotary member and the second formation (66) is effective as ramming means (68) during said initial rotation to act on the snib formation (54) to move the snib member to its freeing position. According to another aspect, means is provided to bias the rotary members to a predetermined relative rotational position, and this biasing means comprises a coil spring (36) disposed within the aforesaid body so as to be compressible by one or either of the rotary members (30, 32) when they rotate.
Patent CA-2127548-C (CA)
Title: Improved method and apparatus for sowing seed
Inventor: DAVIDSON MAXWELL WINGAGE
IPC: A01C7/16
Filed: 1993-01-07
Granted: 2003-10-14
Abstract: A method of sowing seed (including fertilised pellets, parti-cles, crystals and the like) comprises accelerating the seed to a speed in the supersonic range and directing the so moving seed to impinge on penetrable sowing ground so that the seed penetrates the ground to approximately the desired depth. The operation is carried out in a relatively low pressure environment and a feature of the operation is that the seed can penetrate the ground without substantial damage to the seed. Appropriate apparatus is pro-vided to accelerate the seed to the supersonic speed range in a low pressure environment, and in one example this comprises a rotor wheel (30) receiving seed appropriately from a supply source (40), a sufficient rotary speed being imparted to the wheel for the ne-cessary acceleration of the seed which is discharged via an outlet (35) in the wheel. Alternative apparatus comprises a low pressure fluid source (9) far seed acceleration via a ducting system (3, 4) and in another example electrostatically charged seed is accelerat-ed by an electrical conductor system (55 A, B).
Patent CA-2135108-C (CA)
Title: Locomotive engine cooling system
Inventor: UZKAN TEOMAN
IPC: F01P11/14
Filed: 1994-11-04
Granted: 1997-09-09
Abstract: A water cooling system for a locomotive engine that enables the engine to operate at a maximum power level that generates a maximum permissible engine cooling water temperature corresponding to a particular ambient air temperature. The water cooling system can be either an open-loop or a closed-loop controlled system. In the open-loop control system, an ambient air temperature sensor measures the ambient air temperature. When the ambient air temperature exceeds a predetermined value, a signal from the temperature sensor to a signal processor automatically causes the engine power to derate in accordance with the temperature such that the heat generated by the engine maintains the water temperature of the cooling water constant. An ambient pressure sensor senses ambient pressure such that a correction factor is supplied to correct for cooling losses at higher altitude. In the closed loopsystem, the signal processor generates an error signal as the difference in the maximum allowable engine-out water temperature and the measured water temperature. The signal processor then generates a signal causing the engine power to derate such that the heat generated by the engine maintains the water temperature near the specified design limit. A throttle notch 8 to 6 knock-down cooling procedure is also incorporated as a safety mechanism in the event that the other cooling system fails.
Patent CA-2136379-C (CA)
Inventor: WRIGHT JAMES F
IPC: B61F5/24
Filed: 1994-11-22
Granted: 1998-12-29
Abstract: A method and apparatus for controlling relative movement such as rotary movement between a railway truck and a car body supported thereby to control truck hunting through application of reaction forces resisting such rotary movement which are effective primarily to resist higher velocity relative rotational movements.
Patent CA-2139764-C (CA)
Inventor: COLLETTE WAYNE N
IPC: B32B7/027
Filed: 1993-07-02
Granted: 1999-02-23
Abstract: A method of forming a multi-layer polyester preform and container, particularly suitable for refillable PET carbonated beverage bottles, having an interior layer (30) of high copolymer polyester mate rial which resists hazing in the preform injection stage, and at least one exterior layer (32, 34) of a polyester to achieve enhanc ed strain-induced crystallization in the exterior layer during blow molding. The container can withstand higher caustic wash temperature s and exhibits reduced flavor carryover from one product to another.
Patent CA-2146228-C (CA)
Inventor: TERADA YASUHARU
IPC: A44B19/30
Filed: 1995-04-03
Granted: 1998-12-08
Abstract: In an automatic lock slider for a slide fastener, a yoke accommodating a locking pawl and a leaf spring has a pair of inwardly directed projections, and a generally C-shaped, narrow rigid strip has on its upper edges a pair of taper surfaces corresponding to the respective projec-tions.  As the taper surfaces are guided by the projections, the pawl keeps its suitable posture during the assembling of the slider, and the pawl acts reliably while the automatic locking mechanism is either operative or inoperative.  The locking pawl is small in width and has one leg portion to be inserted in a groove of the outer surface of a connector of a slider body.  The result is that the number of pressing steps is reduced to minimize press traces on the surface of an upper wing of the slider body so that press traces are prevented from coming out on the slider surface though the yoke is smaller in width compared to the conventional one.
Patent CA-2148474-C (CA)
Inventor: WUSTER HEINRICH
IPC: C05F17/02
Filed: 1994-09-05
Granted: 2004-04-13
Abstract: In an apparatus for making compsot, which apparatus comprises a preferably upwardly tapering container (1), which is adapted to be vented at its top and has an upper charging opening (4), which can preferably be closed by a cover (3) and which serves to receive the material to be composted, also a lower taking opening (7), which can preferably be closed by a flap (6) and which permits the compost to be taken, a plurality of lower ventilating openings (9), which extend through the container wall (5), and a plurality of air-guiding elements (10), which are provided on the inside surface of the container wall (5) and serve to guide the supply air, which enters through the ventilating openings (9) and flows along the inside surface of the container wall (5), it is proposed to provide on the inside surface of the container wall (5) a flow passage labyrinth, which is defined by the air-guiding elements (10, 12, 13, 15) and brakes the air flow along the container wall (5).
Patent CA-2151221-C (CA)
Title: Side slit catheter
Inventor: HARRELD JOHN H
IPC: A61M5/14
Filed: 1995-06-07
Granted: 2006-04-04
Abstract: An improved side slit catheter is provided for use in long term delivery of a selected medication to a patient, wherein the catheter has a distal end tip shaped to permit expulsion of an occlusive deposit. The catheter includes an elongated lumen for passage of medication such as insulin to the distal end tip for administration to the patient at a selected infusion site. The tip includes a cylindrical wall segment defining a tapered bore which expands in cross section to a delivery port, with at least one and preferably a plurality of longitudinal side slits formed in said wall segment. In the event of delivery port occlusion, medication delivery at normal pressure will continue through the side slits. The occlusion can be expelled from the catheter tip by delivering a selected fluid through the catheter at elevated pressure, whereupon the slitted catheter tip deformably responds to detach from and thus permit expulsion of the occlusion.
Patent CA-2153229-C (CA)
Inventor: HEYSE JOHN V
IPC: C10G35/24
Filed: 1994-01-04
Granted: 2006-04-25
Abstract: A method for reforming hydrocarbons comprising coating portions of a reactor system with a material more resistant to carburization, reacting the material with metal oxides existing in the portions of the reactor system prior to coating, fixating or removing at least a portion of the oxide in the metal oxides, and reforming hydrocarbons in the reactor system under conditions of low sulfur.