baber/WOPTO huggingface dataset:
Patent CA-2000825-A1 (CA)
Title: Method and apparatus for the picking up and handling of sheets of material in particular sheets of porous and flexible material
Inventor: HARTTA MATTI
IPC: B65H3/08
Filed: 1989-10-17
Abstract: The invention relates to a method for picking up sheets of paper,  cardboard or similar,  especially porous material, one at a time from a pile of sheets for onward transfer, using a gripping apparatus fitted with gripping means and a sheet support disk, and a gripping apparatus for effecting the method.   According to the invention when the gripping apparatus is brought to the pile of sheets it achieves the following steps: a.  the pile of sheets is pressed on its top in the central region thereof, b.  the gripping means is moved and presses the top of the pile on both sides of said central region, c.  the top sheet on the pile is distorted preferably from both sides of the central region of the pile by making use of movement of the gripping means towards the central region of the pile so that said top sheet bends partly clear from the sheet under it, d.  the top sheet of the pile is raised up by the gripping means to the level of the support disk at the same time as pressure is still being applied to the central region of the pile, e.   the pressure on the central region of the pile is ceased  and  simultaneously  the  sheet  is  flattened  out against  the  support  disk  by moving  the  gripping means outwards from the central region of the sheet.
Patent CA-2002871-A1 (CA)
Title: Screw implant for a jawbone
Inventor: BAUER ERNST
IPC: A61C13/225
Filed: 1989-11-14
Abstract: SCREW IMPLANT FOR A JAWBONE                  ABSTRACT OF THE DISCLOSURE           A screw implant for a jawbone has a conical threaded implant body with an implant neck and a conical implant post to accept a replacement tooth or a substructure.  The thread of the implant body is a compression thread with concave thread turns.          The implant neck preferably defines a bending zone wherein the ratio of the diameter D? to the length L? of the bending zone is in the range of 1:1.5 to 1:3.  The bending angle is up to 30 degrees and the number of bendings of the bending zone is 3 to 4, when the implant post is bent back and forth.  The implant neck has broadening transition sections.
Patent CA-2003753-A1 (CA)
Title: Multiple channel optical flying spot trianglation ranger system
Inventor: PENNEY CARL M
IPC: G01S5/16
Filed: 1989-11-23
Abstract: RD-17,787 MULTIPLE CHANNEL OPTICAL FLYING SPOT      TRIANGLATION RANGER SYSTEM     Abstract of the Disclosure Multiple light detection channels are introduced into a flying spot optical triangulation ranging system to increase the speed of acquiring range valves.  A laser beam is rapidly swept across a surface by a beam deflector.  Each fiber optic channel can receive light only from a different point along a line at the inter-section of the swept beam with the surface.  The receiver channels are duplicated and separate detectors generate signal pulses at times that are a function of range to the surface.  These are processed in parallel to calculate N range values per beam sweep, where N is the number of channels.
Patent CA-2008522-A1 (CA)
Title: Read/write head buffer
Inventor: DEAN ROBERT E
IPC: G06F13/362
Filed: 1990-01-24
Abstract: READ/WRITE HEAD BUFFER                         ABSTRACT  The read/write head buffer provides a buffer memory (207) for each read/write head (110-0) in the rotating media data storage system (120) that stores the entire track of data that includes the requested data  record.    Thus,  the  read/write  head  buffer retrieves the requested data record independent of the control module (106) so that a seek request from the processor  (100)  can  be  handled  as  soon  as  the beginning of the next data record stored on the track is positioned below the associated read/write head (110-0).  The entire track is thereby staged faster on the average than the time to retrieve the requested data record.  The read/write head buffer includes an address mark detection circuit (214) to identify the beginning of the data field in each data record.  The address mark is a predetermined data pattern of n bits that is written on the track a predetermined distance in advance of the data field of the data record.  The address mark detection circuit (214) compares the n data bits most recently read from the track with this predetermined data pattern of n bits as stored in memory.  Once a match is detected, the buffer (207) is enabled to store the next data record written on the track and all subsequent data records on the track.
Patent CA-2010984-A1 (CA)
Inventor: DELICH DAVID
IPC: C01B32/55
Filed: 1990-02-27
Abstract: For producing and holding CO2 snow, first and second cylindrical horn  connected to an open ended vertical discharge duct to form a generally Y-shaped continuous expansion chamber.  First and second nozzles axially positioned at the tops of the snow horns have tangential fluid discharge passages which are mutually oppositely oriented to produce oppositely oriented spiral flows of CO2 snow within the snow horns.  The. two oppositely oriented spiral flows meet in a mixing region where their spiral components are cancelled, leaving only a vertical component of motion so that the snow is discharged through the vertical discharge duct by gravity.  The discharged snow can be stored in a snow receiving container without blowing or wastage.
Patent CA-2012385-A1 (CA)
Title: Hand held video game with simulated air battle
Inventor: KITAUE KAZUMI
IPC: A63F13/02
Filed: 1990-03-16
Abstract: A novel hand held electronic LCD video game simulating an air battle at sea. Approach of enemy aircraft and aircraft carriers is simulated by sequential display of multiple images. The player manipulates missile sights between nine positions to aim and then fire missiles to destroy the approaching enemy aircraft and carriers. In addition, enemy missile attack is simulated by sequential display of missile images and the player must aim his sights and destroy the missiles before they destroy his aircraft. Five stages of play are provided with increasing speed of play for each subsequent stage. An energy gauge which decreases for each missed enemy aircraft or aircraft carrier limits the number of misses permitted to the player.
Patent CA-2015028-A1 (CA)
Title: Transmit and receive diplexer for circular polarization
IPC: G01S7/02
Filed: 1990-04-20
Abstract: TRANSMIT AND RECEIVE DIPLEXER   FOR CIRCULAR POLARIZATION                                     ABSTRACT A diplexer for processing polarized energy at separate transmit and receive frequencies. The nature of the polarization may be circular, linear or elliptical, de-pending upon the phasing associated therewith. The diplexer comprises a waveguide having first and second ports disposed at opposite ends thereof. A symmetrical band-pass resonator arrangement is disposed around the periphery of the waveguide andcouples energy at the receive frequency out of the waveguide. A symmetrical band-stop resonator arrangement is also disposed around the periphery of the waveguide and filters energy at the receive frequency to prevent coupling of received energy to the second port. The bandpass resonators of each of the resonator arrangements gen-erally include tuning members that control the amount of energy coupled from thewaveguide and that adjust and balance the polarization components of the energy to maintain the polarization state thereof. A plurality of tuning rings may be disposed adjacent to the first port that compensate for the impedance mismatch caused by ex-ternal components coupled to the waveguide. A tuning ring may also be provided at the second port that compensates for impedance mismatch caused by the resonator arrangements. The diplexer is generally an overmoded structure that permits the propagation of higher order modes in the received energy. The symmetry provided in the bandpass resonator arrangement inhibits or prevents the excitation of these higher order modes and hence received energy not coupled out of the diplexer through the second port. Similarly, the symmetrical nature of the bandstop resonator arrangement also inhibits scattering of higher order modes and hence improves the performance of the diplexer.
Patent CA-2015892-A1 (CA)
Title: Catheter with high tactile guide wire
Inventor: HESS ROBERT L
IPC: A61M25/09
Filed: 1990-05-02
Abstract: Abstract of the Disclosure A catheter including an elongated highly flexible hollow lumen and a guide wire positioned within the lumen, the guide wire fabricated from nickel-titanium shape-memory alloy, the guide wire having greater than three percent (3%) elasticity over the temperature range of use of the catheter allowing high-elastic deformation at low stress and low rolling and sliding frictional resistance of the guide wire when moved and bent within the lumen producing a high degree of tactile control is disclosed.     S-016565.014/JWP11
Patent CA-2032538-A1 (CA)
Inventor: SALAZAR EDILBERTO I
IPC: G07B17/00
Filed: 1990-12-18
Abstract: An electronic postage meter is disclosed which comprises a plurality of print devices each individually settable to a desired position so that the print devices may print a desired postage value; a plurality of d.c. motors, one for each of the plurality of the print devices, a different one of the d.c. motors being coupled to a different one of the print devices for setting the respective print device to a respective desired posi-tion; actual position sensing means for providing signals related to the actual positions of the print devices; and a microcomputer coupled to the d.c. motors and to the actual position sensing means.  The microcomputer in response to signals from the actual position sensing means, a desired postage value and programming of the microcomputer sequentially controls the d.c. motors to set the print devices to respective desired positions for printing the desired postage value.  The microcomputer includes a single microprocessor which performs all electronic control functions of the postage meter including time-intensive closed loop control of the d.c. motors, printing control and accounting.  The control loops include low cost, low bandwidth incremental quadrature en-coders.
Patent CA-2036382-A1 (CA)
Title: Method of displaying an operation history of a machine
Inventor: IZUMIYA SHUNZO
IPC: G05B19/4063
Filed: 1990-07-19
Abstract: A B S T R A C T A method of displaying an operation history of a machine, which permits quick and proper investigation of the causes of troubles and trouble-shooting therefor.  A processor of a numerical control device mounted on the machine writes a block number in a corresponding address region of a memory every time one block of a machining program is read out, and executes the block after an index indicating the address region to be stored with the next block number is determined (S1 to S4, S6).  If the determined index exceeds a value indicating the last address region, the index is reset to a value indicating the first address region (S5).  During the execution of each block, the processor successively determines, with respect to all the circuit sections of an input/output circuit, the presence/absence of signal transfer through each circuit section (S12), and causes a memory address region corresponding to the block to successively store codes individually indicating those circuit sections concerned in the signal transfer (S13), so that block numbers indicating up-to-date blocks and codes indicating the circuit sections concerned in the signal transfer during the execution of the blocks are continually held in their associated memory address regions, whereby the operation history of the machine is recorded.  In response to a display command, the block numbers and codes constituting the operation history are successively displayed on a display screen according to precedence (S21 to S26).
Patent CA-2036684-A1 (CA)
Inventor: SCHROEDER LOTHAR
IPC: B31B50/18
Filed: 1991-02-20
Abstract: The  present  invention  concerns  a  machine  designed  for slitting travelling webs such as corrugated board or similar, comprising  a  slitting  tool  with  a  shape  of  a thin  rotary blade (1) provided with a cutting peripheral edge. The rotary blade (1)  is contained within a holder (36)  so that only a small portion of the cutting edge will emerge from the holder (36) through a narrow slot in the holder wall, the said wall being destined to be placed very close to the web (B) to be slitted. The holder (36)  containes a liquid for cooling  and lubricating  the  rotary  blade  (1).  Appropriate  means  for ensuring  the  rotation  of  the  rotary  blade  (1)  are  also foreseen.
Patent CA-2036899-A1 (CA)
Inventor: COFFEY BRIAN M
IPC: A61F11/00
Filed: 1991-02-22
Abstract: An  ear flattening device  is  provided  by  a  pair  of flexible   pads   interconnected  by  a  flexible,  one-piece spacer block.  The outer sides of  the pads are provided with a layer of pressure sensitive adhesive for releasably bonding the pads one to the back side of the ear and the other to the confronting surface of  the  head.  The  adhesive  layers are protected  temporarily  by a removable cover  sheet.  In  one embodiment  a  single  spacer block is substantially centered within the perimeter of the  pair  of  pads,  and in a second embodiment the pads are elongated arcuately and two laterally spaced  apart spacer blocks are positioned  approximately  in the  center  of  the lateral halves  of  the  pads.  In  both instances  the  central  positioning  of  the  spacer  blocks centralizes the pull on the pads  relative  to  the  skin and thereby maximizes the adherence of the pads to the skin.
Patent CA-2037843-A1 (CA)
Title: Syrup dispensing system
Inventor: SHANNON JOSEPH W
IPC: B67D1/00
Filed: 1991-03-08
Abstract: Abstract A syrup dispensing system provides dual dispensing lines to a dispensing head and drawn from a single pump. The lines are interconnected by means of a suitable manifold or other connector to allow intercommunication between the two. A single valve is interposed between the connector and the dispensing pump. Each of the dispensing lines extends upwardly to an apex and then downwardly to the dispensing head, with the dispensing head and apex being above the top syrup level of the pump. By venting the pump to atmosphere after termination of a dispensing cycle and thence opening the dispensing valve, syrupbackflows to the pump and past the respective apexes to prevent unwanted dripping of syrup during quiescent periods of the syrup dispensing system.
Patent CA-2041944-A1 (CA)
Inventor: DABNEY UPTON R
IPC: A47C23/04
Filed: 1991-05-07
Abstract: A box spring assembly in which the mattress support deck is supported by crosswires having integral sinuous end springs to provide improved peripheral support.  Intermediate support springs are interwoven on the crosswires thus eliminating the need of retaining clips in assembly.  The interweaving of the support springs on the crosswires allows the support springs, crosswires and integral sinuous end springs to act as a single entity.  So constructed, the cost of manufacture is lowered and the ease of manufacture is increased.
Patent CA-2043430-A1 (CA)
Title: Process and removal of zinc and nickel from copper ammine sulfate solutions
Inventor: KRUESI WILLIAM H
IPC: C25B3/29
Filed: 1991-05-29
Abstract: PROCESS FOR THE REMOVAL OF ZINC AND NICKEL    FROM COPPER AMMINE SULFATE SOLUTIONS                           Abstract A method for the recovery of copper from copper-containing materials, for example, scrap, ores or dust.  An aqueous cupric tetrammine sulfate lixiviant is contacted with the copper-containing material to produce a leachate containing cuprous, nickel, and zinc ions, ammonium sulfate and  free  ammonia.    Copper  can be  recovered  from the leachate  by  electrolysis.    Nickel  and  zinc  can  be precipitated  from  the  resulting  spent  electrolyte  by oxidizing substantially all of the cuprous ions in the copper ammine sulfate solution to cupric ions and lowering the pH of the solution to a range from about pH 7.5 to about  pH   8.0   in  order  to   form  a  precipitate. Alternatively, copper sulfate can be added to the cupric ammine sulfate-containing solution in order to form nickel and/or zinc containing precipitate.
Patent CA-2044696-A1 (CA)
Title: Process for the production of organosilicon compounds
Inventor: WESTALL STEPHEN
IPC: C08G77/08
Filed: 1991-06-14
Abstract: Process for the production of organosiloxanes comprising contacting (A) at least one organosilicon compound having in the molecule at least one silanol group, the organic substituents being selected from monovalent hydrocarbon groups having from 1 to 14 carbon atoms and monovalent substituted hydrocarbon groups having from 1 to 10 carbon atoms, with (B) one or more compounds selected from rubidium carbonate, cesium carbonate and carboxylates of rubidium and cesium.
Patent CA-2044929-A1 (CA)
Title: Teaching method and system
Inventor: FERRIS MAXIME
IPC: G09B5/10
Filed: 1991-06-18
Abstract: There is disclosed an affordable method and system of fully automating  the  instruction  of  a  plurality  of  students  which incorporates the use of a single CPU in conjunction with student questioning, responding and information feedback devices and which no longer relies upon the ability, mindset or even presence of a classroom teacher.  The method further includes a fully-automated directly-integrated marks, records, reports and lesson management system.
Patent CA-2045617-A1 (CA)
Title: Surface treatment of silicone tubing to improve slip properties
Inventor: COURY ARTHUR J
IPC: B29C59/14
Filed: 1990-12-19
Abstract: Surface treatment of silicone rubber covering on IPG leads by exposure to radio frequency glow discharge.
Patent CA-2046178-A1 (CA)
Title: Magneto-optical disk with lubricant film
Inventor: NAKAYAMA JUNICHIRO
IPC: G11B11/105
Filed: 1991-07-04
Abstract: A magneto-optical disk comprises a substrate, a recording layer formed on the substrate, and a solid-lubricant film, whereon slides a flying-type magnetic head used for recording and/or reproducing. The solid-lubricant film is formed on the recording layer, and is made of polyolefin containing a perfluoroalkyl group, or of glassy carbon. Adhesion of the flying-type magnetic head to the surface of the magneto-optical disk and scattering of the lubricant occur less easily because of the solid-lubricant film. The solid-lubricant film is formed by sputtering target material with argon ions, the target material being achieved by kneading polytetrafluoroethylene powder with perfluoropolyether. An external magnetic field of substantially constant intensity can be applied on the recording layer because the solid-lubricant film is substantially uniform in thickness.
Patent CA-2047212-A1 (CA)
Title: Multiple point delivery apparatus for separating of sheet-like elements
Inventor: SPALDING MICHAEL H
IPC: B65H29/60
Filed: 1990-12-19
Abstract: A sheet diverter apparatus diverts sheets into alternate paths by guiding the leading portion of each sheet through a gap (23) in a horizontal conveyor into alternate diverter belt conveyor units (11, 12) where the sheet is firmly grasped for transfer. The one conveyor unit (11) is a horizontal unit having a top belt conveyor (20) and a bottom belt conveyor (22), one of which is offset downstream to form a diverting gap (23). A diverter (15) is located to successively rotate through the gap (23) and divert the alternate sheet into the angulated conveyor unit (12). The linear or surface speed of the diverter cam (15) is greater than the linear speed of the sheet. The cam surface (16a) is constructed with a low friction surface such as provided by a low friction plastic coating (44). An air cushion (45) may be created between the cam face of the diverter (30) and the sheet.
Patent CA-2047356-A1 (CA)
Title: Disk apparatus and manufacturing method thereof
Inventor: TSUJINO HITOSHI
IPC: G11B21/02
Filed: 1991-07-18
Abstract: DISK APPARATUS AND MANUFACTURING METHOD THEREOF                          ABSTRACT      Particulate contamination on a disk or a head can be prevented by locating a magnet of a voice coil motor (VCM) in the outside of an enclosure in which the disk and the head  are  contained.   If  the  magnet  is  located  in  the enclosure, the magnet attracts particles in the air and then the particulate contamination on the disk or the head may occur.   In accordance with the invention,  an aperture is provided on the enclosure in which the disk, the head and a coil of the VCM for moving the head with respect to the disk are contained.  The position of the aperture corresponds to the position of the coil contained in the aperture.  A non magnetic sheet such as a Polyester sheet is provided on the enclosure  for  covering  the  aperture.   The  magnet  is positioned in  the  outside  of  the  enclosure  so  that  the magnet is confronted with the non-magnetic sheet.
Patent CA-2050282-A1 (CA)
Inventor: TORII NOBUTOSHI
IPC: B25J9/10
Filed: 1991-02-15
Abstract: A driving link mechanism for transmitting torque to driven elements of a robot from a driving source, which is constituted of two link mechanisms spaced apart and different in motion phase from each other, wherein the torque is constantly transmitted from the driving source to the driven elements of the robot through at least one of these two link mechanisms, whereby, even when a state of a dead center occurs in one of the link mechanisms, the other link mechanism transmits the torque, so that work regions of the driven elements of the robot can be expanded.
Patent CA-2051452-A1 (CA)
Title: Hydrocarbonaceous fuel compositions and additives therefor
Inventor: WALLACE GRAEME M
IPC: C10L9/10
Filed: 1991-09-16
Abstract: Hydrocarbonaceous fuels and additive compositions therefor which comprise: a) one or more fuel-soluble manganese carbonyl compounds; b) one or more fuel-soluble alkali or alkaline earth metal-containing neutral or basic detergent salts; and c) one or more fuel-soluble ashless dispersants. These compositions preferably contain, in addition to components a), b) and c) above, one or more of the following: d) at least one fuel-soluble demulsifying agent; e) at least one aliphatic or cycloaliphatic amine; and f) at least one metal deactivator. The compositions possess improved combustion characteristics (e.g., formation of less soot, smoke, carbonaceous products and/or noxious emissions), and form on combustion carbonaceous products of reduced acidity. The deposition of sludge on critical engine or burner parts or surfaces is reduced and the fuels have improved stability and demulsibility characteristics. And the fuel compositions can result in decreased fuel consumption in diesel engines.
Patent CA-2054413-A1 (CA)
Title: Pyridinium salts containing alkoxysilyl groups
Inventor: BERNHARDT GUENTHER
IPC: B01J31/00
Filed: 1991-10-29
Abstract: ABSTRACT        Novel pyridinium salts containing alkoxysilyl groups, of the general formula I:                           (I) in which Y(-) represents a halide ion, R1 and R2, which may be identical or different, represent an aliphatic radical having 1 to 12 C atoms, a cycloaliphatic radical having 5 to 7 C atoms or a benzyl radical, or may form together a group (-CH2-)a, wherein a represents 4, 5 or 6, which ring may be interrupted by an oxygen atom between two C atoms, wherein X is an organosilane radical   in which R3 represents an alkyl radical having 1 to 4 C atoms, R4 represents an alkyl group having 1 to 4 C atoms or alkoxyalkyl group having a total number of C atoms of 2 to 4, m represents 0, 1 or 2 and n represents 1, 3 or 4.  The novel compounds are useful as phase transfer catalysts for the preparation of methacryloyloxy- and acryloyloxyalkylalkoxysilanes.  These catalysts have higher thermal stability than the known quaternary ammonium salts catalyst and ensure high yields and high purity of the silanes so produced.