baber/WOPTO huggingface dataset:
Patent CA-2008933-A1 (CA)
Title: Sequential activation of explosions
Inventor: BOCK IMMO E
IPC: F42D1/055
Filed: 1990-01-30
Abstract: A B S T R A C T           An electrical detonating system for sequentially  acti-vating a series of explosions uses a harness which has a chain of resistors.  Electrical detonators which fuse into an open circuit condition  are  connected between a power line and the  junctions between  the resistors.  Constant current activating  pulses  are supplied   to one end of the chain and the power line from a shot exploder.  In order to ensure that each pulse only activates  one detonator,  the  shot  exploder is "intelligent"  and  terminates each  pulse when it detects a voltage  increase.  The  activating pulses  may be supplied to a remote end of the chain of resistors via a further power line.  The resistors may then be grouped  and link  elements provided between the groups and the further  power line.  These  links are sequentially utilised to establish  relo-cated  start  links  between the shot exploder and the chain  of resistors.
Patent CA-2009950-A1 (CA)
Inventor: WATANABE NAOTAKA
IPC: D21H17/45
Filed: 1990-02-13
Abstract: Disclosed are a papermaking method of preparing a paper having a reinforced strength wherein a polymer latex is added to a paper stock in an amount of from 2.5 to 30 % by weight.        The  polymer  latex  is prepared by neutralizing a seed polymer with an acid or a salt or by quaternizing it with a quaternizing agent.    The surfaces of the emulsion grains are highly densely cationated.   The seed polymer is formed by adding a monomer as represented by the following formula (I) or a mixture of the monomer (I) and copolymerizable ethylenic unsaturated monomer(s) (II) to a seed latex of a carboxyl-modified synthetic rubber latex or synthetic resin emulsion and polymerizing them:                       ( I ) R1 represents H or CH3;          R2 represents an alkylene group having from 2 to 5 carbon atoms;          R3 and R4 each represent H or an alkyl group having from 1 to 5 carbon atoms;             A represents       or       ; and R1, R3 and R4 are so selected that the monomer is hardly soluble or insoluble in water.          The paper has a noticeably improved paper-strength.
Patent CA-2011010-A1 (CA)
Title: Automatic web threading apparatus & method
Inventor: PEIFFER ROBERT E
IPC: D21G9/00
Filed: 1990-02-27
Abstract: ABSTRACT OF THE DISCLOSURE    A method and apparatus for automatically threading a traveling web strip, such as a so-called paper tail in a papermaking machine, utilizes a doctor for doctoring the web strip from the surface of a roll.  A stream of compressed air is projected against the oncoming web strip in the vicinity of the point where the doctor blade contacts the web on the roll and urges the oncoming web off the roll surface upstream of the doctor.  A foil is brought into proximity with the outer surface of the web spaced over the roll to urge the strip outwardly and against a serrated knife to sever the web strip against the force of its momentum.  The severed end of the web strip is then guided onto a plate for conveyance into a downstream section of the machine for further processing.
Patent CA-2011953-A1 (CA)
Title: Method of forming a new pile after discharge of a completed pile in a pile-forming machine associated in particular with a printer and device for carrying out this method
Inventor: MARTIN MARTIAL G
IPC: B65H45/101
Filed: 1990-03-12
Abstract: ABSTRACT OF THE DISCLOSURE      A method of forming a new pile after the discharge of a completed pile in a machine for forming piles in zigzag fashion from a flexible web, the method consisting in rupturing the web at a transverse perforation line located between the last flap of the pile being formed and the first flap of the new pile to be formed, advancing the ruptured web until the forward edge of the first flap reaches a position corresponding to its final position at the base of a new pile, stopping the swinging unit, lowering the supporting table for discharge of the completed pile and providing a pressure air cushion underneath the zone of the forward edge of the first flap which forms a temporary support during the absence of the supporting table, removing the temporary supporting cushion when the table has returned to its working position and restarting the operation of the swinging unit.
Patent CA-2014089-A1 (CA)
Inventor: LAMB VERNON L
IPC: B32B37/24
Filed: 1990-04-06
Abstract: Apparatus and process for fabricating pressboard from shredded paper coated with a thermoplastic material and a pair of facing webs includes placing the shredded poly-coated paper (18) between the two travelling webs (12,14) to form a composite, the composite then being passed in a manner to differentially shift the travelling webs relative to each other for enhanced bonding of the shreds to themselves and to the facing webs, by pressing them through a series of heated rollers (46-52) defining a serpentine path while heating the thermoplastic material above its softening point, and pressing the composite together.
Patent CA-2016359-A1 (CA)
Title: Airborne computer generated image display system
Inventor: SCHOFIELD IAN E
IPC: G01C21/00
Filed: 1990-05-09
Abstract: Abstract An airborne imaging system capable of displaying on a visual display unit (VDU) an accurate representation of the ou?side world.   The system enables the pilot to  fly an aircraft without having any direct visual contact with the outside  world.    A  computer  generated  image  of  stored geographical data is continually updated by information from aircraft-mounted sensors.  In a preferred embodiment, images representing scene features such as pylons, bridges, roads, etc are accessed from a look-up table and overlaid on the VDU picture.
Patent CA-2017624-A1 (CA)
Title: Scanning micromechanical probe control system
Inventor: WEST PAUL E
IPC: G05D3/12
Filed: 1990-05-28
Abstract: ABSTRACT OF THE INVENTION              The scanning micromechanical probe control system for controlling relative movement between a sensor probe and an adjacent sample surface includes a sensor probe for measuring a parameter which varies relative to the relative positioning of the probe and the adjacent surface adapted to generate an error signal indicating one of at least two discrete position conditions;  an up/down counter for integrating the error signal and for generating an up/down count signal; and a position control servo for controlling the relative positioning of the probe and the surface responsive to the up/down count signal. An adaptive feedback control most preferably controls the rate of up/down positioning of the sensor probe and the rate of raster scanning of the probe relative to the target surface.
Patent CA-2019121-A1 (CA)
Title: Optical pattern recognition apparatus
Inventor: IWAKI TADAO
IPC: G06E3/00
Filed: 1990-06-15
Abstract: ABSTRACT OF THE DISCLOSURE        In the joint transform correlator utilizing a spatical optic modulator, depending on light intensity of each correlation peak obtained from optical correlation processing between at least one reference image and at least one input image, a light intensity passing through each reference image corresponding to each correlation peak is substantially adjusted so as to constitute a feedback system.  By such construction when processing a relatively large number of input or reference images, the correlator can avoid failure of recognition due to reduction of light intensity of correlation peaks and can avoid erroneous recognition to enable fast pattern recognition.
Patent CA-2019638-A1 (CA)
Inventor: BURKE PATRICK M
IPC: C07B61/00
Filed: 1990-06-22
Abstract: Preparation of 3-pentenoic acid from butadiene, water and carbon monoxide in a organic acid solvent in the presence of a rhodium catalyst and a bromide or iodide promoter.
Patent CA-2021679-A1 (CA)
Title: Over-center visor
Inventor: FRYE DALE J
IPC: B60J3/00
Filed: 1990-07-20
Abstract: ABSTRACT OF THE DISCLOSURE         A flexible sun shading membrane has an edge coupled to a window frame and an opposite edge attached to a moveable member which has at least two stable positions, one being closed adjacent and conforming to the window frame and a second position extended and lowered from the window frame to stretch the membrane into a sun blocking position.
Patent CA-2022704-A1 (CA)
Title: One side heat sealable polypropylene film
Inventor: BALLONI RICCARDO
IPC: B29L9/00
Filed: 1990-08-03
Abstract: An oriented, heat-sealable polymer film laminate having a core layer (b) of isotactic polypropylene, a first outer layer (a) of isotactic polypropylene containing an anti-blocking agent and a second outer, heat sealable layer (c) containing an anti-blocking agent and a silicone oil which, in service, transfers to provide a coefficient of friction-reducing amount thereof on the exposed surfaces of both layers (a) and (c).
Patent CA-2023871-A1 (CA)
Inventor: ABYS JOSEPH A
IPC: C25D3/52
Filed: 1990-08-23
Abstract: A process is described for electroplating palladium and palladium alloys from an aqueous bath. Particularly important is the use of certain organic additives that improves appearance, insures ductile and crack-free deposits even for relatively thick deposits and permits relatively high electroplating rates. Also described are a variety of articles with electroplated palladium made in accordance with the invention.
Patent CA-2026620-A1 (CA)
IPC: B61F5/04
Filed: 1990-10-01
Abstract: A center plate for railway cars is provided that comprises outwardly projecting positioning lugs which are seated in corresponding-shaped notches located proximate the underedge of the center sill pocket.  The center plate is entirely groove welded to the center sill pocket.  The corresponding-shaped seating arrangement will only accept the positioning lugs when the center plate is in its proper orientation.
Patent CA-2027956-A1 (CA)
IPC: H05K5/02
Filed: 1990-10-18
Abstract: ENCLOSURE APPARATUS FOR RETAINING DEVICES             WITHIN A COMPUTER            ABSTRACT OF THE DISCLOSURE      A computer  enclosure  is provided which  is  capable  of accommodating  a  plurality  of  drive  devices  therein  in  as fashion whereby the drive devices are readily removable.  The enclosure includes a box having first and second opposed sides and a substantially rectangular opening extending between the first and second sides.  The enclosure further includes a drive device retainer member having first and second opposed ends, the  first  end  of  the  retainer  being  removably  pivotally attachable to the first end of the box, the second end of the retainer member being attachable to the second side of the box. The retainer member contacts the drive devices to hold the drive devices in the box.   The enclosure further includes a bezel  structure having first and second opposed ends.   The bezel structure is situated atop the retainer member, the first end of the bezel structure being removable pivotally attachable to the second side of the box, the remaining first end of the bezel structure being removably attachable to the first end of the box so as to hold the retainer member on the box.
Patent CA-2031767-A1 (CA)
Title: Apparatus for bending glass sheets
Inventor: BORER JOHN W
IPC: C03B23/03
Filed: 1990-12-07
Abstract: Abstract A press bending mold having an improved shaping element comprising a flexible, continuous shaping surface that is readily adjustable and easy to fabricate.  The shaping element is mounted on a support plate by a plurality of adjustable connectors, and includes a resilient body having an expanded metal grid encapsulated therein.  The resilient body may be covered by one or a plurality of sheets of a fibrous, heat-resistant material which, in turn, is covered by a layer of fiberglass cloth, or the such.  One or more of the fibrous sheets may be treated with a rigidizer.
Patent CA-2031925-A1 (CA)
Title: Collapsible ironing board
Inventor: TEDUSCHI CARMINE F
IPC: D06F81/04
Filed: 1990-12-10
Abstract: ABSTRACT OF THE DISCLOSURE     A collapsible ironing board is provided and consists of a platform having two extendable telescopic sections and three collapsible legs.  When the ironing board is not being used, the two sections of the platform can be pushed together and the legs folded up into a closed position allowing the ironing board in its reduced size to be stored away.
Patent CA-2032705-A1 (CA)
Title: Thermoplastic resin compositions and their use
Inventor: SAKAZUME SUEHIRO
IPC: C08L51/06
Filed: 1990-12-19
Abstract: ABSTRACT OF THE INVENTION     There is provided a thermoplastic resin composition and a molded bumper therefrom in which said composition comprises:     (I) 1 to 99 parts by weight of a propylene polymer, and (II) 99 to 1 parts by weight of a multi-phase structure thermoplastic resin which is a graft copolymer comprising 5 to 95 % by weight of a propylene polymer and 95 to 5 % by weight of a vinyl polymer obtained from at least one vinyl monomer, either of both the components being formed with a dispersion phase having a particle diameter of 0.001 to 10 µ m.
Patent CA-2034135-A1 (CA)
Title: Production of paper, board and cardboard
Inventor: AUHORN WERNER
IPC: D21H17/34
Filed: 1991-01-14
Abstract: Paper, board and cardboard are produced by draining a paper stock, containing un-desirable substances, in the presence of hydrolyzed homo-and/or copolymers of N-vinylformamide having a degree of hydrolysis of not less than 60% and a cationic retention aid. According to the invention, faster drainage and improved retention are obtained compared with the use of known fixing agents.
Patent CA-2041046-A1 (CA)
Title: Device for temporary mechanical attachment of an object to a support and rapid ejection of the object from the support
Inventor: SPARIAT JACQUES
IPC: B64G1/64
Filed: 1991-04-23
Abstract: TITLE OF THE INVENTION            Device for temporary mechanical attachment of an object to a support and rapid ejection of the object from the support TEXT OF THE ABSTRACT       A mechanism for temporarily attaching an object (A) to  a  support  (B),  separating and  ejecting  the object comprises a receptacle adapted to be fixed to the support in which an ejector rod (2)  is slidably mounted.   The ejector rod has a rear portion acted on by an ejection pressure  and  a  front  end  bearing  against  a  bearing surface (5A) near the centre of mass (G) of the object, at  the end of  an elongate recess  (4)  into which the ejector rod (2) extends as far as said bearing surface. The body comprises an annular end portion joined to said body by a fragile coupling.   There are provided in the object a front central centring area (5) at the bottom of the recess and into which extends with at most a small clearance the free end of the ejector rod and a rear end centring area (6) situated near the mouth of the recess and  into  which  extends  with  small  clearance  a  rear centring male portion (40)  fastened to the body of the receptacle.       (See figure 1)
Patent CA-2043745-A1 (CA)
Inventor: HSU P J
IPC: B23Q3/154
Filed: 1991-06-03
Abstract: A  new  structure  of  electromagnetic  sucker comprising a sucker, a base, an intermediate plate and a solenoid in the form of a knockdown structure for the highest strength and precision and for even distribution of magnet force for the highest magnet attracting by using of the intermediate plate.
Patent CA-2045743-A1 (CA)
Title: Fiber optic gyro using stepping pulse phase modulating signals to compensate for opto-electric waveform distortion
Inventor: ISHIGAMI MOTOHIRO
IPC: G01C19/02
Filed: 1991-06-26
Abstract: In a fiber optic gyro, a clockwise propagating light ray and a counterclockwise propagating light ray propagate in an optical fiber coil in a time of ?, and are given a bias phase modulation signal by a phase modulator connected at an end of said optical fiber coil, in such a manner that a phase shift increasing stepwise by .pi./2 radian every time interval T is applied n steps and then a phase shift decreasing stepwise by .pi./2 radian every time interval T is applied n steps, to the phase modulator. A signal generator generates a bias phase modulation signal every time interval T according to an oscillation frequency of a voltage controlled oscillator. An interference light beam of said clockwise and counterclockwise propagating light rays is converted to an electric signal by an opto-electric converter and, if the time interval T does not coincide with a propagation time, a positive- or negative-going pulse is created in an output of the opto-electric converter during a period for the bias phase modulation signal to increase or decrease. Such a positive- or negative-going pulse is detected by a pulse detector and, based on a detected result, an oscillation frequency of the voltage controlled oscillator is controlled so that said pulses no longer occur.
Patent CA-2047545-A1 (CA)
Title: Vacuum-assisted, countergravity casting apparatus and method
Inventor: VANDERJAGT A DEAN
IPC: B22D18/04
Filed: 1991-07-22
Abstract: VACUUM-ASSISTED, COUNTERGRAVITY CASTING APPARATUS AND METHOD     Abstract Of The Disclosure Apparatus and method are provided for vacuum-assisted, countergravity casting a melt into a gas permeable mold having an upstanding fill sprue that supplies melt to a mold cavity via a lateral ingate.  Subambient pressure is applied to the mold fill sprue and to the mold cavity when a lower open end of the sprue and an underlying source of the melt are communicated to urge the melt upwardly to fill the sprue and the mold cavity.  Thereafter, the pressure applied to the mold sprue is selectively raised relative to the subambient pressure applied to the mold cavity to cause the melt in the sprue to drain therefrom without siphoning the melt from the melt-filled mold cavity.  Pressurized gas can be introduced into the mold sprue as the mold is communicated to the melt source to blow floating slag and other debris away from the region of communication between the sprue lower open end and the source to reduce entry of slag into the mold cavity.
Patent CA-2049849-A1 (CA)
Title: Mode partition screening apparatus
Inventor: MAGILL PETER D
IPC: H01S3/098
Filed: 1991-08-26
Abstract: MODE PARTITION SCREENING APPARATUS Abstract Accurate mode partition data from a laser are collected simply and rapidly in accordance with the principles of the invention wherein the laser output is directed to a filter which separates a central longitudinal mode from the side modes. The filter operates to present all side modes in a predetermined wavelength range simultaneously and continuously at the output of the filter. By subsequently comparing the intensity or power in the side modes delivered to the filter output with a predetermined threshold, it is possible to determine the frequency of occurrence and magnitude of mode partition events for side modes in the predetermined wavelength range. In one exemplary embodiment, the filter is realized by the combination of a Fabry-Perot etalon, whose longitudinal axis is angled with respect to the longitudinal axis (propagation axis) of the laser output beam directed onto the filter, together with an external reflector which is parallel to the Fabry-Perot etalon to permit multi-passing of the beam between the Fabry-Perot etalon and the reflector. The beam is reflected by the Fabry-Perot etalon so that after two or more passeswithin the filter only the side modes are output by the filter. In this arrangement, the filter acts as a notch filter having a wide passband and having an output for the side modes which is separate from an output for the main mode.
Patent CA-2054093-A1 (CA)
Title: Copolymers of vinyl pyrrolidone and a c30 alpha-olefin in flake or powder form, process for making same and personal care compositions therewith
Inventor: KOPOLOW STEPHEN L
IPC: C08J3/12
Filed: 1991-10-23
Abstract: Ganex® copolymers in the physical form of flakes or powders is provided herein by a novel process, and used in a personal care composition.
Patent CA-2055922-A1 (CA)
Inventor: PORTER CHARLES A
IPC: B27M3/00
Filed: 1991-11-20
Abstract: ABSTRACT OF THE DISCLOSURE      A device and method for producing a finished wood material beam assembly and, in particular, a finished prestressed wood material beam assembly.  The device includes a support having a top that has movable chord and web adjusters carried thereon.          The adjusters may be selectively moved and adjusted as desired both horizontally and vertically, so that the chords and web of the assembly may be received thereon at selected desired heights.          As such, the adjusters may be selectively adjusted to precisely conform to the specific size and dimensions of the chords and the web being supported thereby.  Securing cylinders and stops carried by the table are also adjustable to securely hold the assembly in place.  A prestressing cylinder and prestressing stop carried by the table are also adjustable to prestress a portion of the assembly disposed therebetween.  Mechanical and adhesive fasteners are applied to the portions of the assembly by respective devices. In one embodiment, the mechanical and adhesive fasteners are carried by a movable bridge that extends over width of the top and which is movable along the length of the top.     KBN/jlh/658
Patent CA-2057796-A1 (CA)
Inventor: BEIERLE JOHN D
IPC: H04L12/28
Filed: 1991-12-17
Abstract: A system for voice distribution amongst a plurality of telephone subscriber locations operating on a broadband cable network wherein RF transmitting and RF receiving channels for carrying voice and signalling information are established at the subscriber locations and coupled with the broad band network and a central switch is also coupled with the broadband network and enables each RF transmitting channel to be selectively coupled to any of the RF receiving channels.
Patent CA-2063282-A1 (CA)
Inventor: MUKAI HIDEHITO
IPC: H01L39/24
Filed: 1992-03-18
Abstract: According to an aspect, a tape-type high temperature superconducting wire is provided by applying compression work to a wire manufactured by drawing so that an oxide high temperature superconductor is divided into a plurality of superconductors by a stabilizing material of substantially equal thickness.  According to another aspect, a high temperature superconducting wire is provided by packing a material which becomes a superconductor portion into a metal sheath which becomes the stabilizing material and applying drawing work thereto, followed by bundling an assembly of these wire in a metal sheath and applying drawing work thereto.  The thickness of the superconductor portion is approximately 10% or less than the thickness of the wire.  The critical current density is hardly decreased in the high temperature superconducting wire even if subjected to bending work.
Patent CA-2064503-A1 (CA)
Inventor: ROTHFUSS ROBERT G
IPC: A61B1/00
Filed: 1992-03-31
Abstract: A unique hernia repair stapler is described which allows the forming of staples to attach prosthetics to tissue, or to approximate herniated tissue. The staple is useful in endoscopic operations and may be rotatable or stationary. The stapler has a unique forming and ejecting mechanism; as well, there is the availability of a loading mechanism useful for both cartridges and magazines of staples. An improved staple shape allows for better staple alignment, especially in a multiple load device.
Patent CA-2065060-A1 (CA)
Inventor: COFFEY CAROL A
IPC: B65D27/28
Filed: 1992-04-03
Abstract: Abstract An  inter-office  routing  envelope  where  the envelope is a tough man made material completely recyclable and  having  a  multi  block  addressee  label  removably adhesively applied to a face thereof.  The material of the label and printing ink thereon are readily recyclable.  A completely used label is replaced by a new label providing continued use of the "Tyvek" material envelope.
Patent CA-2067170-A1 (CA)
Title: Antiparkinson mao reversible inhibitor
Inventor: CACCIA CARLA
IPC: A61P25/28
Filed: 1991-08-08
Abstract: Use of caroxazone for the manufacture of a medicament having a new therapeutic use in the treatment of Parkinson's disease and other neurodegenerative conditions related to endogenous and/or exogenous toxins, alone or in association with other antiparkinson agents.