baber/WOPTO huggingface dataset:
Patent CA-2040902-A1 (CA)
Title: Anti-theft newspaper holder
Inventor: LENSON PETER
IPC: A47G29/124
Filed: 1991-04-22
Abstract: F o r m  24 ( ss. 21, 31, 34 and 142) A B S T R A C T            Delivery of the daily newspaper is done in several ways. In a suburban area papers are generally delivered to individual households by schoolage children.  In urban and city areas a variety of housing situations makes delivery innovative resulting in some special problems, one of which is theft.          The Anti-Theft Newspaper Holder addresses this problem as well as the added advantage of protecting the newspaper from the weather.  The theft prevention device is a non-expanding collar fastened at the top of a cylindrical  stretchable cloth bag about the width of the daily newspaper. rolled once. When same is placed into the bag it expands to the limits of the material  and, when theft is attempted  the newspaper "catches" behind the non-expanding collar preventing further removal - similiar to the barb on a fish hook which prevents escape of the fish.          The Holder has a handle which allows it to be placed over an entrance doorway knob.  After placement the handle can be narrowed to prevent theft by a drawstring which is threaded through two "eyes" on the handle.          The Holder is made of good quality  weather-resistant material which is easily available preferably having some stretch capabilities.  The dimensions of the holder may vary depending on the volume of the daily newspaper when it is formed into a cylindrical shape for placing in same.  Probably the week-end edition would be the governing factor.
Patent CA-2045559-A1 (CA)
Title: Imidazopyrimidine antiallergy agent
Inventor: COOPER KELVIN
IPC: C07D519/00
Filed: 1990-02-27
Abstract: (57) Abstract Antiallergy and anti-inflammatory compounds of formula (I), wherein R is phenyl or substituted phenyl; R1 and R2 are H, C1-C6 alkyl, or they are joined to complete a fused benzene ring; R3 is OH, C1-C6, alkoxy, aryl (C1-C4)alkoxy or NR4R5 wherein each or R4 and R5 is independently H or C1-C6 alkyl or they may be joined to form a ring; and Het is a 5 or 6-mem-bered aromatic heterocyclic group which may optionally be fused to a benzene or further heterocyclic ring either or which may be optionally substituted.
Patent CA-2047279-A1 (CA)
Title: Storage and transportation of goods under controlled atmospheres
Inventor: SADKOWSKI PIOTR
IPC: B01J/
Filed: 1991-07-17
Abstract: A system for controlling the atmosphere of a container for use in the storage and/or transportation of perishable goods, which comprises - adsorption means for the selective adsorption in whole or in part and in a predetermined order of any water vapour, carbon dioxide, oxygen or ethylene contained within the atmosphere - means for urging the atmosphere to the adsorption means - means for returning the controlled atmosphere to the container.
Patent CA-2047366-A1 (CA)
Inventor: JOHNSON ALEXANDER T
IPC: A63B53/04
Filed: 1991-07-18
Abstract: ABSTRACT   A blade type golf putter having a putter head which includes an integral hosel for mounting the head on one end of a shaft, the putter including two ball striking faces, the hosel being shaped such that the axis of the shaft passes through the centre of percussion of the putter and further the hosel has an elongate base which merges into the top face of the head by two concave generally cylindrical surfaces which are polished so that light reflected therefrom towards the user of the putter appears as lines which are parallel to top edges of the blade.
Patent CA-2048905-A1 (CA)
Title: High pulp content nonwoven composite fabric
Inventor: EVERHART CHERIE H
IPC: D04H1/46
Filed: 1991-08-09
Abstract: A high pulp content nonwoven composite fabric is disclosed. The composite fabric contains more than about 70 percent, by weight, pulp fibers which are hydraulically entangled into a continuous filament substrate.  This high pulp content composite nonwoven fabric may be used as a heavy duty wiper or as a fluid distribution material, cover material, and/or absorbent material in an absorbent personal care product.   Also disclosed is a method of making the high pulp content nonwoven composite fabric.
Patent CA-2048958-A1 (CA)
Inventor: CHENG HUNG Y
IPC: B42F13/22
Filed: 1991-08-12
Abstract: A ring binder includes a base member supporting a plurality of ring members, and an opening mechanism  at each end of the base member for opening the plurality of ring members, each opening mechanism including lock means to lock the opening mechanisms in its closed position, the base member comprising a rigid upper structure supporting a pivotable lower structure to which the ring members are mounted, wherein at each end of the binder, the opening mechanism is pivotally supported between the lower structure and the upper structure, externally of the lower structure, and internally of the upper structure.
Patent CA-2049536-A1 (CA)
Inventor: HOLLINGSWORTH RAWLE I
IPC: C07C59/10
Filed: 1991-08-20
Abstract: A process for the preparation of 3,4-dihydroxybutanoic acid (1) and salts thereof from a glucose source containing 1,4-linked glucose as a substituent is described.  The process uses an alkali metal hdyroxide and hydrogen peroxide to convert the glucose source to (1).  The compound (1) is useful as a chemical intermediate to naturally occurring fatty acids and is used to prepare 3,4-dihydroxybutanoic acid-gamma-lactone (2) and furanone (3), particularly stereoisomers of these compounds.
Patent CA-2051667-A1 (CA)
Title: Silica supported polymerization catalyst
Inventor: BUEHLER CHARLES K
IPC: C08F4/654
Filed: 1991-05-08
Abstract: ABSTRACT OF THE DISCLOSURE            A new catalyst useful in the polymerization of at least one olefin is disclosed.  The catalyst comprises the product obtained by contacting silica, in random order, with (1) at least one hydrocarbon soluble magnesium-containing compound; and (2) a first modifying compound selected from the group consisting of silicon halides, boron halides, aluminum halides and mixtures thereof followed by a second modifying compound selected from the group consisting of halides having the structural formula  , where x2 is halogen; r is an integer of 1 to 3; and s is an integer of 1 to 3 with the proviso that the sum or r and s is 4, a hydrogen halide and mixtures thereof.  The product of this step is contacted with a first titanium-containing compound having the structural formula Ti(OR)mXn, where R is hydrocarbyl or cresyl; X is halogen; m is an integer of 1 to 4; and n is 0 or an integer of 1 to 3, with the proviso that the sum of m and n is 4. Finally, the product of this latter step is, in turn, contacted with a second titanium-containing compound, different from the first titanium-containing compound, having the structural formula  , where X1 is halogen; R1 is hydrocarbyl; p is an integer of 1 to 4; and g is 0 or an integer of 1 to 3, with the proviso that the sum of p and q is 4.          A catalyst system comprising the above catalyst, an aluminum-containing first cocatalyst and at least one silane second cocatalyst is also set forth.          Finally, a process for polymerizing at least one olefin utilizing the catalyst system of this disclosure is taught.
Patent CA-2053424-A1 (CA)
Title: Bicycle seat
Inventor: DENISAR RICHARD A
IPC: B62J1/00
Filed: 1991-06-24
Abstract: ABSTRACT OF THE DISCLOSURE     A seat, as may be used on a bicycle, providing improved efficiency and comfort for a rider.  The seat comprises a split seat having two halves simultaneously rotatable about the longitudinal axis of a mounting post.  The points of the two halves that are furthest from the mounting post are also movable up or down in conjunction with the up and down movements of the rider's legs.  In addition, support of each half are pivotable about the longitudinal axis of the axle on which the support portions are mounted.  A seat configured in this manner will rotate about the longitudinal axis of the mounting post, thus causing the right and left sides of the axle on which the support portions sit to move equal distances in opposite directions of each other, i.e., when the left side is forward, the right side will be rearward by an equal distance.  The seat needs no horn and can be manufactured using easily interchangeable parts so that a rider can select those parts that will provide the desired movement, support, or look that the rider desires.
Patent CA-2054267-A1 (CA)
Inventor: NAKAMURA TAKASHI
IPC: F16D35/00
Filed: 1991-10-25
Abstract: ELECTROVISCOUS FLUID                       ABSTRACT              The electroviscous fluid according to the present invention comprises a dispersion of wet-method particles having an average particle diameter of 10 to 500 micrometers and having a pH of not greater that 6.5 in an electrically insulating fluid. The fluid of this invention are characterized by a substantial increase in yield value at low voltages and excellent shear stability.
Patent CA-2057152-A1 (CA)
Inventor: TRABER ROMAN
IPC: B65D77/26
Filed: 1991-12-05
Abstract: Abstract For the corrugated deformation of a flat sheet of material, a stationary row (2) of shaping tools (4) is pressed against a moveable row (3) of shaping tools (5). The shaping tools of both the rows are, with that, also simultaneously pushed together so that they trace the shortening of the sheet of material during the deformation. Thus, the situation is achieved where no relative displacement between the sheet of material and the facing sides (6, 6') of the shaping tools (4 and 5) takes place, also in the case of numerous corrugations of relatively great height. The moveable row of shaping tools is arranged on a rotor, whilst the stationary row is fixed at a working station within the area of rotation of the rotor.    (Figure 1 to 3)
Patent CA-2057415-A1 (CA)
Title: Flashing bouncing ball
Inventor: HERBRUCK STEVEN L
IPC: F21V33/00
Filed: 1991-12-11
Abstract: ABSTRACT OF THE DISCLOSURE           A novelty ball including an inner hollow sphere of transparent plastic encasing a flashing light circuit.  The inner hollow sphere is encased in an outer hollow sphere of a soft, resilient translucent plastic.  The inner hollow sphere is formed of a pair of mating hollow hemispheres.  Each hemisphere is molded with an integrally formed pair of battery sockets and two pairs of circuit board sockets.  The sockets of one hemisphere align with corresponding sockets of the other hemisphere when the hemispheres are connected in mating relationship.  A circuit board assembly having a pair of stacked circuit boards with a pair of batteries sandwiched therebetween is located in the inner hollow sphere with each of the circuit boards seated in a pair of the circuit board sockets of each hemisphere.  Each battery is seated in one of the battery sockets of one of the hemispheres.
Patent CA-2058877-A1 (CA)
Title: Automated video imagery database generation using photogrammetry
Inventor: PLUNK GERALD W
IPC: G06T15/10
Filed: 1992-01-07
Abstract: AUTOMATED VIDEO IMAGERY DATABASE GENERATION           USING PHOTOGRAMMETRY                                 ABSTRACT A method for converting forward looking video or motion picture imagery into a downlooking database suitable for use in an image generation system to generate real-time perspective images for simulation purposes. A digital video camera photographs a sequence of forward looking frames along a course including several known groundcontrol points. Digital data from the digital video camera is read into a computer. The initial position and the position of ground control points is read into the computer. A Kalman filter technique provides continuous estimates of exact camera location in x, y, z coordinates, and in roll, pitch and yaw orientation. A correlation filter determines corresponding pixels in adjacent frames. Range from the camera to the pixel surfaces is calculated to determine the x, y and z position thereof. A modified mathematical ster-eophotogrammetry technique is used. Radiometric data and elevation data is extracted from the lower portion of the frame for each pixel. After the radiometric and elevation data have been established for each pixel in each frame, the imagery is warped onto the elevation data to generate a top down view. The database is then ready for use in an image generation system.
Patent CA-2059283-A1 (CA)
Inventor: DE VILLARDI DE MONTLAUR GEORGE
IPC: C09K23/00
Filed: 1990-06-11
Abstract: An emulsifier system for oil in water emulsions is a mixture of salts of a sulphonic acid and a di-carboxylic acid containing from 10-500 carbon atoms together with a C5-C25 monocarboxylic acid or its salt, a coupling agent and/or a non-ionic emulsifier have the benefits of emulsifying power with reducing foaming and corrosive tendencies.
Patent CA-2061316-A1 (CA)
Title: Production of paper
Inventor: LANGLEY JOHN G
IPC: D21H17/44
Filed: 1992-02-17
Abstract: ABSTRACT                 Production of Paper Internally  sized  paper  is  made  by  incorporating cationic retention aid into a cellulosic suspension to form flocs, breaking these down to microflocs, aggregating them by bentonite or other anionic polymeric material, draining the suspension and drying the resultant sheet, and the size is incorporated in the suspension as a non-ionic or anionic emulsion after the addition of the cationic retention aid.
Patent CA-2061721-A1 (CA)
Title: Vector containing an inducible selection gene system
Inventor: BARTH PETER T
IPC: C12P21/02
Filed: 1992-02-24
Abstract: ABSTRACT                                 VECTORS          The invention relates to vectors which include an inducible selection gene and a sequence which codes for a heterologous polypeptide. In a particular example the selection gene comprises the tetA and tetR genes.  The vector may also include a sequence which is capable of conferring stability on the vector, such as the cer sequence, a transcription terminator, such as gene 32 from bacteriophage T4, a ribosome binding site, and a multi-cloning site.  Hosts transformed with the vector, processes for preparing these hots, and processes for preparing polypeptides using these hosts.
Patent CA-2061758-A1 (CA)
Title: Smoking compositions containing a flavorant-release saccharide additive
Inventor: CHAN WOONTUNG G
IPC: C07H15/203
Filed: 1992-02-24
Abstract: ABSTRACT OF THE DISCLOSURE This invention provides smoking compositions which contain a novel flavorant-release additive. Under cigarette smoking conditions, a combustible filler and/or paper wrapper additive such as 4'-formyl-2'-methoxyphenyl 4,6-O-cinnamylidene-B-D-glucopyranoside pyrolyzes into cinnamaldehyde and vanillin flavorants as volatile components of the cigarette smoke.
Patent CA-2061833-A1 (CA)
Inventor: DAVIS ROBERT
IPC: A61B19/00
Filed: 1992-02-25
Abstract: ABSTRACT    A surgical bone reamer includes a rotatable, elongated shank having a proximal end, a distal end and a longitudinal axis, and a reaming head mounted on the distal end.  A plurality of equally spaced walls are radially disposed on the reaming head around the longitudinal axis, and tip edges for penetrating bone are defined on the radial walls to be disposed angularly with the longitudinal axis.  Reaming edges joined to the tip edges extend longitudinally from the tip edges in the proximal direction parallel to and an equal radial distance from the longitudinal axis for reaming a cylindrical tunnel when the reaming head is rotated in bone.          Tapered flutes disposed angularly between the tip edges and the radial walls permit bone to be evacuated through the reaming head when forming a tunnel in bone.
Patent CA-2063467-A1 (CA)
Title: Golf club stand
Inventor: ORTUNO JORGE
IPC: A63B55/10
Filed: 1992-03-18
Abstract: ABSTRACT OF THE DISCLOSURE     A golf club stand is characterized by a unitary frame having leg and receptacle portions.  The lower end of the leg is inserted into the ground and the receptacle portion is spaced above the ground to support the grips of a plurality of golf clubs.  The stand is lightweight and used by a golfer to support a number of golf clubs when the golfer is separated from his golf bag.  The stand minimizes the chances that the golfer's clubs will be lost or left behind after a shot and also prevents the clubs from being soiled since they are supported upright by the stand rather than laid on the ground.  A flag attached to the stand serves as a wind indicator.
Patent CA-2063962-A1 (CA)
Title: Silyl ethers of rapamycin
Inventor: FAILLI AMEDEO A
IPC: C07F7/18
Filed: 1992-03-25
Abstract: ABSTRACT A compound of the structure   wherein R1 is -SiR3R4R5; R2 is hydrogen or -SiR3R4R5; and R3. R4. and R5 are each, independently, alkyl, alkenyl, aralkyl, triphenylmethyl, or phenyl which by virtue of its of its immunosuppressive activity is useful in treating transplantation rejection, host vs. graft disease, autoimmune diseases and diseases of inflammation; by virtue of its antitumor activity is useful in treating solid tumors; and by virtue of its antifungal activity is useful in treating fungal infections. This invention also provides a method of using rapamycin 42-[O-[(1,1-dimethylethyl)-dimethylsilyl] ether for the preparation of 31-substituted rapamycin derivatives.
Patent CA-2064008-A1 (CA)
Inventor: TSUJIMOTO KAZUSHI
IPC: G06Q10/00
Filed: 1991-05-14
Abstract: An automatic warehousing system which provides for improvement in the operating efficiency of the operator.  An operating file has codes formed therein for incoming and outgoing goods.  A code signal corresponding to a load and a operation mode signal for operation of the automatic warehousing system which are searched from the file are input to a control unit which controls load entry and delivery operations of a load handling crane. Management of load storing spaces within the rack and goods stored in the spaces is carried out according to these signals.  In this way, inventory management is carried out by the control unit. Therefore, the operator can perform entry and delivery setting for the control unit without considering the rack number of the load storing space with respect to the load being handled.  The system involves less operational procedure than the prior art arrangement and contributes toward improved operating efficiency.
Patent CA-2064512-A1 (CA)
Title: Pressure seal adhesive pattern
Inventor: LOMBARDO LEO
IPC: B42D15/08
Filed: 1992-03-31
Abstract: A folded (e.g. Z-folded) mailer type business form is constructed so that it may be printed using an IBM 3800 printer without sticking to the printer fuser or backer rolls.      Pressure sensitive adhesive patterns (e.g. discontinuous strips) are placed on the first face of a paper sheet near a first transverse edge, and the second face of the paper sheet near a second transverse edge. The spacings from the edge are about 5/16 inches in each case, sufficient to insure that the adhesive is not engaged by the printer rolls during pausing of the printer.
Patent CA-2065068-A1 (CA)
Inventor: DEANE ALASTAIR R
IPC: G01P3/44
Filed: 1992-04-03
Abstract: A hub assembly for a motor vehicle equipped with an anti-lock brake system is disclosed in which the exciter ring for the ABS is press fit over the outer surface of the hub with the ring providing an inner cylindrical surface for a press fit mount of a seal assembly into the exciter ring rather than providing a mounting surface in the hub for the seal assembly.  As a result, only the bearing race and the exciter ring are press fit to the hub.    This configuration  enables  the  exciter  ring  to  be positioned radially outwardly from the bearing such that the bearing provides radial support to the hub beneath the exciter ring whereby distortion of the hub assembly components due to multiple press fit mounts is reduced, part to part variation is reduced and dimensional instability of the assembly is reduced.
Patent CA-2065247-A1 (CA)
Title: Quantum well structures
Inventor: BURT MICHAEL GRAHAM
IPC: G02F1/017
Filed: 1990-09-04
Abstract: By forming quantum well (QW) structures with two different heterojunctions having different band offsets it is possible to form QWs having built-in dipoles. The presence of a built-in dipole in a narrow enough well results in QWs having absorption edges which, unlike those of conventional QWs, can be shifted to the blue by application of an electric field of appropriate polarity.
Patent CA-2069409-A1 (CA)
Title: Fabric roll
Inventor: COBANE JOSEPH L
IPC: B65D85/62
Filed: 1991-10-01
Abstract: A roll for fabric or like material includes a core (12) on which the material is adapted to be wound, and an end cap (14) removably secured to each end of the core. The core has a replaceable, flexible flap (66) which extends approximately 90° around the core permitting the leading edge of the fabric or like material to be inserted under the flap so that subsequent turns of the wound material will not show a permanent mark or crease when the second and subsequent turns wrap over the leading edge. The end caps have an undulating pattern (16, 18) along their perimeters which interfit with other end caps when two or more rolls are formed into a module. Modules (M) are combined with top and bottom pallets and bound together for shipment. The cores and end caps are composed of separable parts so that after the material has been removed, these component parts can be separated and combined into a compact package for return to the original shipper.
Patent CA-2070623-A1 (CA)
Title: Quick concrete insert or kwiksert
Inventor: ASFAR JAMAL J
IPC: E04B1/41
Filed: 1992-06-05
Abstract: ABSTRACT OF THE DISCLOSURE          The present invention QUICK CONCRETE INSERT or KWIKSERT relates to an insert in concrete which when used ensures easy fit of a threaded rod or a threaded bolt into the split-nut of the KWIKSERT. The concept of a KWIKSERT can be utilized in elevated concrete slabs to hang equipment, piping, cable trays, light fixtures, etc. or it can be used to fasten railway rails,  hand rails,  park benches or stadium seats to concrete slabs, or it can also be used to join together castings of precasted concrete for overpasses or bridges, utility poles for traffic light stanchions, window sash, window louvers, etc.  In its simplest form it consists of a housing which looks like a pyramid and inside the housing, a split nut, and a spring to keep the nut in position under no load, a housing cap and a plug.  The plug serves a dual purpose of a location positioner for the insert and it prohibits the entering of fluids during the concrete pour to the inner section.  To hang or connect a rod to the KWIKSERT simply push the rod through the hole which will tend to push up the split nut, thus enlarging the nut hole opening.  After the rod has been inserted and pushed up sufficiently to the KWIKSERT chamber or when the rod has hit the cap it can then be turned in a clockwise direction to ensure a proper fit or interlocking of the rod threads into the threaded nut and eventually the nut will set into the lowest position.  When the rod is loaded it will pull the split nut to its lowest position.   The material of fabrication for the housing and cap can be metallic or synthetic, such as plastics.   The split nut material is of hardend steel or some other hardened alloy and  where  required  it  can  be  coated  for  corrosion mitigation.  After installation if the KWIKSERT will not be utilized the plug can remain in position which can be "flush" with the concrete ceiling in a residential type installation.   In a commercial type installation or in installations where false ceilings are used the plug may protrude.