baber/WOPTO huggingface dataset:
Patent CA-2121739-A1 (CA)
Inventor: HEISMANN FRED LUDWIG
IPC: G02F1/01
Filed: 1994-04-20
Abstract: The effects of polarization dependent hole burning and polarization dependent loss are reduced by modulating the state of polarization (SOP) of an optical signal being launched into an optical transmission path periodically between first and second states of polarization of at least one pair of orthogonal states of polarization. Preferably, the SOP is modulated at a rate that is substantially higher than 1/ ts,  where t s is the anistropic saturation time of the optical amplifier. Ideally, the state of polarization of the launched optical signal should be modulated such that it traces a complete great circle on the Poincare' sphere. In addition, the effects of polarization dependent loss are further reduced by controllably selecting the particular great circle being traced on the Poincare' sphere. In one example, the particular great circle being traced is selected such that a predetermined parameter, for example, the signal to noise ratio, of the optical information signal being received at the remote end of the optical transmission network is maintained at a prescribed value, e.g., a maximum value. In an embodiment of the invention, the great circle is traced at a uniform speed such that the launched optical signal spends equal time intervals in both states of any pair of orthogonal states of polarization on the selected great circle on the Poincare ' sphere. (FIG. 1).
Patent CA-2122156-A1 (CA)
Title: Mechanical bottle gripper
Inventor: LIEHS RUPERT H
IPC: B65B21/12
Filed: 1994-04-26
Abstract: In the bottling industry, there exists machinery designed to remove bottles from a shipping container such as a cardboard or plastic case. There are two main components to this operation: a machine to support, align and index the case of bottles, and a set of mechanical bottle grippers to remove the bottles by gripping the neck of each bottle. Each bottle gripper removes one bottle at a given time. The grippers are in a fixed alignment with the bottles as they appear in the case. The machine operates the individual grippers through a translating cam which, through linkages, closes or opens the gripper jaws against the neck of the bottle. As the array of grippers is closed on a case of bottles, another mechanism on the machine lifts the grippers and bottles out of the case, usually discharging them onto a conveyor where the bottles proceed to be rinsed and filled. This invention is a mechanical bottle gripper designed for use on such a machine, that is, it is designed to grip a bottle by the neck in a pair of jaws that can be opened or closed by the action of an external cam.
Patent CA-2122255-A1 (CA)
Inventor: PELLEGRINO ANTHONY J
IPC: A61B6/00
Filed: 1992-11-25
Abstract: An elongated prone patient-supporting examining table (43) for X-ray mammography is centrally supported at variable heights by a rear pedestal. The table is provided with a central breast-receiving aperture (35) through which the patient's pendulant breast is exposed to a horizontal beam of X-rays from a tube head source (280) mounted on an arm angularly movable through an arc of some 210° centered on the patient's breast. Diagnosis of suspect lesions and fine needle biopsy are both facilitated by stereotactic examination. Digital imaging using a CCD camera (36) and image enhancement software provides magnification, contrast enhancement, window and level manipulation and high resolution images, with low exposure levels, short exposure times, and greatly reduced imaging times.
Patent CA-2123477-A1 (CA)
Title: Delta-sigma fractional-n frequency synthesizer and frequency discriminator suitable for use therein
Inventor: RILEY THOMAS A D
IPC: H03L7/197
Filed: 1994-05-12
Abstract: A fractional - N frequency synthesizer comprises a voltage-controlled oscillator(VCO) for generating an output signal in response to a control voltage derived by a digital-to-analog converter from a digital error signal. The error signal is derived by a differencing device which subtracts a digital signal representing a desired frequency of the output signal. The digital signal representing the output signal frequency is derived by a frequency discrimination device which determines the instant frequency of the analog output signal and provides a corresponding digital representation with zero static frequency error. In preferred embodiments, the frequency discrimination device is a delta-sigma frequency synthesizer is combination with a decimator. This frequency synthesizer configuration avoids deficiencies due to non-linearity and noise sensitivity of analog phase detectors. The invention also provides a frequency discriminator comprising a feedforward path including a multimodulus divider means for dividing the frequency of a digital signal (F0) in dependence upon a division ratio control signal, comparison means for comparing the divided frequency signal with a reference frequency signal to provide an error signal, and a feedback path comprising a transfer function of 2-Z-1 and responsive to the error signal and the reference frequency signal to provide the division ratio control signal.
Patent CA-2124811-A1 (CA)
Title: A window with a frame of extruded profile members
Inventor: LINDGREN CLAES
IPC: E05F15/619
Filed: 1992-12-02
Abstract: In a window with a frame of extruded profile members a thermo pane is supported on the inside by a glazing bead connected with the frame profile mem-ber. The main frame mainly consists of wood profiles with weather-resisting coverings. A hinge pivot at the top of the window is formed by an edge portion (28) of an extruded profile member (27) connected to the main frame (20) and a hinge blade is formed by a hook-shaped wall portion (6) of the opposite frame profile member (1). To ensure engagement of said hinge pivot and hinge blade in the closed position of the window engaging means at one of the other sides of the window may comprise a sliding block (31) arranged displaceably in a track in a frame member between a fixed window position opposite a retaining device an-chored in the main frame and an openable window position for connection to a motion transfer member guided in a recess in the main frame.
Patent CA-2125318-A1 (CA)
Title: Method and apparatus for processing fish fillets
Inventor: HARRIS LANE N
IPC: A22C25/18
Filed: 1994-06-07
Abstract: Abstract A fish fillet trimming device having a swing arm mounted rotary blade which rides on the surface of a moving conveyor table.          The fish fillets are passed between the cutting blade and the conveyor surface for trimming blemished portions of the fillets.    The method permits an inspector using an endless belt candling table to detect blemishes in the fillets and orient the fillets on the belt surface so as to pass beneath the trimming knife without removal of the fillets from the processing travel path.
Patent CA-2126520-A1 (CA)
Title: Device for driving labels or the like in particular into meat and simultaneously printing information onto the labels
Inventor: MARCHESONI UMBERTO
IPC: B65C/
Filed: 1994-06-22
Abstract: Abstract:            DEVICE FOR DRIVING LABELS OR THE LIKE IN PARTICULAR INTO MEAT AND SIMULTANEOUSLY PRINTING INFORMATION ONTO THE LABELS        A device for driving labels (2), guarantee seals or the like into products such as meat of any type, for example poultry or the like, or into containers in particular of expanded material for such products, comprises a label dispensing member (1) with a label-carrying guide (6) positioned at the end of said member (1), an actuator for expelling the labels (2) from the device or rather from a magazine (3), and means for mobilizing the actuator.  To the front of said member (1) there is provided a stamper (14) comprising a type-carrying plate (24) associated with an arm (23) guidedly movable within a support (15) with which a cartridge (18) containing ink is associated, said plate (24) being arranged to penetrate a seat (35) provided in said member (1) so as to arrive at and print characters on a label (2) before its expulsion from the magazine (3).
Patent CA-2128131-A1 (CA)
Title: Process for removing emissions by a washing method
Inventor: TEAGUE BETH O
IPC: B01D50/00
Filed: 1994-07-15
Abstract: Abstract of the Disclosure Disclosed is a process for removing emissions originated in the manufacturing industry, especially from polymerization operations and thermoplastic polymer processing operations by collecting air containing  the  emissions,  directing  the  air  containing  the emissions to a candle filter in a candle filter housing and rinsing the air containing the emissions within the candle filter with a solvent.
Patent CA-2128832-A1 (CA)
Title: Quaternary compounds as brightness enhancers
Inventor: DIADDARIO LEONARD L JR
IPC: D21C9/16
Filed: 1994-07-26
Abstract: ABSTRACT    A process is disclosed for maximizing the brightness of wood pulps which have been treated to anionic bleaching agents wherein the brightness is enhanced by the use of selected quaternary ammonium compounds.
Patent CA-2131293-A1 (CA)
Inventor: NOVITSKY CHARLES
IPC: C22C1/08
Filed: 1994-01-06
Abstract: ABSTRACT OF THE DISCLOSURE           Vacuum insulating and construction materials are provided by producing bubble containing, solid materials such as individual bubbles, multiple bubbles, foamed material, and the like in an environment of less than atmospheric pressure and  enclosing  the  bubbles  produced  in  an  air-tight encapsulating material while still in the environment of less than atmospheric pressure.  On being moved into an environment of  atmospheric  pressure  the  bubbles  retain  their  vacuum quality.
Patent CA-2133753-A1 (CA)
Title: Process for preparing polyoxyalkylated amines
Inventor: MOSQUET MARTIN
IPC: C07C217/50
Filed: 1993-04-09
Abstract: PCT No. PCT/FR93/00364 Sec. 371 Date Dec. 5, 1994 Sec. 102(e) Date Dec. 5, 1994 PCT Filed Apr. 9, 1993 PCT Pub. No. WO93/21254 PCT Pub. Date Oct. 28, 1993A process for the preparation of polyoxyalkylated compounds comprising at least one primary or secondary amine function is provided comprising reacting at least one amino-alcoholate (B) produced from an amino-alcohol (A) including at least one OH group and at least one primary or secondary amine function, by replacing a fraction or all the OH groups by OM groups, M being selected from sodium, potassium, rubidium and cesium, with an oxirane, a mixture of oxiranes or a sequence of oxiranes, in an aprotic and anhydrous solvent, in an anhydrous atmosphere and at a temperature of between about 0 DEG  C. and 200 DEG  C.
Patent CA-2135852-A1 (CA)
Title: 5-methyluridine process for large-scale preparation of 2',3'-didehydro-3'-deoxythymidine (d4t)
Inventor: CHEN BANG-CHI
IPC: A61K31/513
Filed: 1994-11-15
Abstract: An economical process, amenable to large-scale production, is disclosed for the preparation of 2',3'-didehydro-3'-deoxythymidine (d4T) from 5-methyluridine. The process employs a novel, 5'-benzoyl-2'.alpha.-halo-3'.alpha.-alkanesulfonylthymidine intermediate as well as a highly efficient and practical deprotection, isolation and purification procedure for the d4T product.
Patent CA-2136906-A1 (CA)
Title: Organotin stabilizer mixture
Inventor: ANDERSON DONALD F
IPC: C08K5/58
Filed: 1994-11-29
Abstract: An organotin stabilizer mixture comprising: (a) monoalkyltin mercaptoalcohol (b) a monoalkyltin mercaptoacid ester; and (c) a monoalkyltin sulfide provides improved early color, lubricity, and weatherability to rigid vinyl polymer formulations.  The formulation may also contain a monoalkyltin mercaptoalcohol ester as an optional component.
Patent CA-2137331-A1 (CA)
Title: Chainsaw mill
Inventor: BRASSARD BERTRAND
IPC: B27B17/02
Filed: 1994-12-05
Abstract: The  present  invention  relates  to  an  apparatus  for longitudinally cutting a piece of wood into lumber with a chain saw.  The apparatus generally comprises a track, a carriage mounted to move back and forth upon said track,    said    carriage    comprising    a    chain    saw attachment  component  for  releasably  securing  a chain saw to said carriage, a support component supporting said track, said support component and said carriage being configured such that a chain  saw  is   securable  to   said  carriage   for longitudinally cutting said piece of wood, and a cradle for holding a piece of wood. The cradle may have an upwardly sloping base component and a displaceable  knee  component,  said  knee  component  being displaceable relative to said base component such that a said piece of wood held by said cradle may be laterally moved by said knee component, upwardly along said base component, for presenting a said piece of wood to said saw for longitudinal cutting thereof.
Patent CA-2141830-A1 (CA)
Inventor: FRANK ROBERT G
IPC: C03B35/14
Filed: 1995-02-02
Abstract: An apparatus for shaping heat softened glass sheets includes a shaping station to receive a heat softened glass sheet to be shaped; first and second transfer stations positioned along opposing sides of the shaping station, and first and second cooling stations positioned adjacent a corresponding transfer station. An upper vacuum mold having first and second downwardly facing, shaped sheet engaging surfaces moves between the transfer stations and within the shaping station. The sheet engaging surfaces of the vacuum mold each have a shaped configuration generally corresponding to a final desired shaped of a glass sheet to be shaped. Heat softened glass sheets are positioned within the shaping station and lifted into engagement with one of the sheet engaging surfaces to shape the sheet. Vacuum is drawn along the sheet engaging surface to hold the shaped sheet thereagainst. The mold then moves the shaped sheet and engaging surface to one of the transfer stations where the vacuum is discontinued to deposit the shaped sheet a on sheet support. The sheet support then transfers the shaped sheet to one of the cooling stations, where the shaped sheet is controllably cooled.
Patent CA-2141983-A1 (CA)
Title: Trimming device for a water borne vessel
Inventor: ASTLEY DALE V
IPC: B63B39/06
Filed: 1995-02-07
Abstract: A trimming device for a water borne vessel comprising a trim tab which is adapted to be pivotally mounted to the vessel so as to be at least partially submerged in use, at an inclination such that, upon forward movement of the vessel, the tab is subjected to pressure from the water flowing over it, resulting in lift of the vessel, and a control mechanism which acts on the trim tab to automatically allow its inclination to reduce progressively and hence to correspondingly reduce the lift on the vessel.
Patent CA-2147862-A1 (CA)
Title: Drug delivery device
Inventor: DEMPSKI ROBERT E
IPC: A61K9/50
Filed: 1993-11-04
Abstract: The instant invention is directed to a means of processing and delivering to a patient, medicaments, whose exposure con-trol limits are equal to or less than 0.1 mg/m3, in a manner which assures protection of those preparing the dosage form and patient and health care professionals who come in contact with the product.
Patent CA-2148149-A1 (CA)
Title: System for automatically opening basket doors of a top loading horizontal axis washer
Inventor: CUTHBERT VICTOR W
IPC: D06F37/10
Filed: 1995-04-28
Abstract: A system for automatically opening basket doors of an automatic washer.  The automatic washer includes an enclosure having an opening provided with a lid hingedly connected to the enclosure for selectively covering the enclosure opening.          An imperforate tub disposed within the enclosure surrounds a rotatable perforate wash basket having an opening for accessing the interior of the basket.  A first door flap having an engagement opening and a second door flap having a catch portion extending therefrom are provided being hingedly mounted on opposite rims of the basket opening and being biased toward their open position and further being adapted to partially overlap one another in a closed position such that the catch portion engages the engagement opening for locking the first door flap and the second door flap in a closed position.  A tab extends from the second door flap generally opposite the main portion of the second door flap beyond the hinged connection with the basket.  A tab engagement arm is disposed adjacent the basket for selectively engaging the tab for disengaging the second door flap from the first door flap.          The tab engagement arm is interconnected with the lid such that moving the lid from a closed position to an open position causes the tab engagement arm to disengage the respective door flaps.
Patent CA-2150402-A1 (CA)
Inventor: KLINGLER ALBAN
IPC: A01F29/09
Filed: 1995-05-29
Abstract: A cutter head includes a plurality of short cutter knives respectively mounted to flat rectangular trailing surfaces of angular blade retainers welded to the exterior of a cylindrical cutterhead drum.  The knives each include a flat rectangular attaching flange, bolted to the trailing surface of a respective retainer, and a cutting or separating region configured in two different embodiments as a single trapezoid which is respectively coplanar with, or bent or twisted relative to, the attaching region.  In third and fourth embodiments, the separating region is configured as a double trapezoid, with the third embodiment having the short sides of the trapezoids joined along a line of symmetry from which the separating region is bent in increasing amounts towards respective long sides of the trapezoids, and with the fourth embodiment having the long sides of the trapezoids joined along the line of symmetry in which case the separating region is bent from the attaching region an amount which increases toward the line of symmetry from the respective short sides of the trapezoids.  Used together with the planar knives is a wedge-shaped shim which is sandwiched between the attaching region of the knife and a planar attaching surface.
Patent CA-2151117-A1 (CA)
Title: A process for producing a thiol protease inhibitor derived from a microorganism belonging to the genus aspergillus
Inventor: CHIBA SATORU
IPC: A61K35/74
Filed: 1995-06-06
Abstract: A microorganism capable of producing thiol protease inhibiting substances in high yield is provided, which belongs to the genus Aspergillus, such as A. oryzae or A. sojae. The inhibiting substances can be produced by culturing the microorganism on rice alone or in a rice-supplemented medium and recovering it from the culture in a high concentration, wherein the process may further comprise a step of heat treating a water extract or a culture filtrate of the culture, allowing the treated liquid to contact with a nonionic porous adsorption resin, thereby effecting adsorption of the inhibiting substances to the resin, and subsequently recovering the inhibiting substances adsorbed to the resin.   Raw fish meat pastes or fish paste products can be produced by adding the inhibiting substances obtained by the above process to a raw material fish meat.  A quality improving agent of food or seafood products that cannot be processed into high quality products due to thiol protease, which comprises the thiol protease inhibiting substances are further provided.
Patent CA-2151710-A1 (CA)
Title: Polyalkyl hydroxyaromatic esters and fuel compositions containing the same
Inventor: CHERPECK RICHARD E
IPC: C10L1/18
Filed: 1994-10-27
Abstract: Polyalkyl hydroxyaromatic esters having the formula:    or a fuel-soluble salt thereof; where R1 and R2 are independently hydrogen, hydroxy, lower alkyl having 1 to 6 carbon atoms, or lower alkoxy having 1 to 6 carbon atoms;      R3 is a polyalkyl group having a weight average molecular weight in the range of about 450 to 5,000; and x is an integer from 0 to 10.        The polyalkyl hydroxyaromatic esters of formula I are useful as fuel additives for the prevention and control of engine deposits.
Patent CA-2151785-A1 (CA)
Inventor: HAWRYLKO ROMAN BOHDAN
IPC: B29C48/41
Filed: 1995-06-14
Abstract: A process for the extrusion of rigid PVC profile other than pipe is disclosed in a twin conical screw extruder, equipped with high shear screws. The process comprises extruding a compound specially adapted for the process, the compound comprising a polyvinyl chloride resin with an average particle size of from 130 to about 200 microns, a lubricant system containing no more than about 3.5 parts of one or more lubricants, an organo metal salt, from 0 to less than 0.75 parts of a polymeric processing aid, at least one filler/pigment, and a stabilizer for PVC. The process achieves extrudate surfaces characterized by a smooth, dull finish. The process advantageously operates at high extrusion output rates under the conditions specified.
Patent CA-2152528-A1 (CA)
Inventor: RAO CHUNG-HWA HERMAN
IPC: G06F9/46
Filed: 1995-06-23
Abstract: Techniques for providing replicated files in a distributed system. A replicated file has a set of copies in components of the distributed system. Operations on the copies have the same semantics for the application processes accessing them as operations on a single copy of a file in a system where all processes execute on the same host. These semantics are achieved by means of a distributed synchronization system. Each replicated file has a read token and a write token. In order for an application process to perform an operation on a replicated file, the token required for theoperation must be in the process's host and the process must have access to the token. Tokens are passed between hosts by token servers which respond to requests for tokens from application processes and from other token servers. The techniques are implemented using a library which replaces a standard I/O library, and may thus be employed without modification to hardware or the operating system.
Patent CA-2152721-A1 (CA)
Title: Image formation
Inventor: DOYLE STEPHEN BERNARD
IPC: G03F7/26
Filed: 1995-06-27
Abstract: A method of image formation which employs a lithographic printing plate precursor having a combination of desirable lithographic properties and excellent flexibility which allows the precursor to be exposed in roll fed film and paper imagesetters and phototypesetters. The printing plate precursor incorporates a photosensitive coating containing silver halide, which is suitable for direct-to-plate exposure and a base substrate comprising a laminate of aluminium and plastic. After exposure by means of an imagesetter or phototypesetter, the printing plate precursor is processed to provide hydrophilic non-image areas and oleophilic image areas.