baber/WOPTO huggingface dataset:
Patent CA-1282496-C (CA)
Title: Database system for parallel processor
Inventor: KAHLE BREWSTER
IPC: G06F17/30
Filed: 1987-06-16
Granted: 1991-04-02
Abstract: ABSTRACT           A method is disclosed for using a single instruction multiple data (SIMD) computer to search large databases in parallel.  The words of each document are stored by surrogate coding in tables in one or more of the processors of the SIMD computer.  To determine which documents of the database contain a word that is the subject of a query, a query is broadcast from a central computer to all the processors and the query operations are simultaneously performed on the documents stored in each processor.  The results of the query are then returned to the central computer.  After all the search words have been broadcast to the processors and point values accumulated as appropriate, the point values associated with each document are reported to the central computer.  The documents with the largest point values are then ascertained and their identification is provided to the user.
Patent CA-1285979-C (CA)
Inventor: VOLLBRECHT KENNETH ALBERT
IPC: F02N11/08
Filed: 1987-07-15
Granted: 1991-07-09
Abstract: ELECTRONICALLY COMMUTATED COAXIAL STARTER MOTOR/ALTERNATOR FOR AN INTERNAL COMBUSTION ENGINE             Abstract of the Disclosure An electronically commutated coaxial starter motor for use with internal combustion engines of the type including those utilized with lawn mowers, pumps, generators,  automobiles and the like.   The motor in-cludes a stator mounted on the cylinder or block co-axially with the engine crankshaft together with angu-larly spaced field windings surrounding the stator, a ring magnet mounted to rotate with the crankshaft com-posed  of  a  plurality  of  circumferentially  arranged permanent magnets having alternating north-south poles, sensors  in  the  form  of  magnetically  actuated  Hall effect devices mounted on a disc affixed to the stator for sensing the angular position of alternate ones of the poles of the ring magnet, a flywheel or other suit-able rotatable member coaxially mounted to rotate with the crankshaft having a plurality of circumferentially spaced permanent magnets mounted therein, and circuitry responsive to electrical signals from the Hall effect devices for controlling current flow through the field windings to cause the flywheel or other rotatable mem-ber to rotate.   Upon engine start-up, the flywheel or other rotatable member with the plurality of circumfe-rentially arranged permanent magnets is driven by the internal combustion engine and is automatically conver-ted to an alternator.  The conversion to direct current occurs  in the incipient diodes  internal to switching devices such as mosfets or in flyback diodes connected across other suitable power switching devices  in the circuitry.   This available power is used for battery charging and other system power requirements.
Patent CA-1295475-C (CA)
Title: Hydrated calcium bromide reversible phase change composition
Inventor: LANE GEORGE A
IPC: C09K5/06
Filed: 1987-07-28
Granted: 1992-02-11
Abstract: Abstract A reversible liquid/solid phase change compo-sition comprising a eutectic composition of CaBr2.6H2O and CaBr2.4H2O, having more than 5.4 but less than 6.0 moles of H2O per mole of CaBr2.  The composition optionally includes additives selected from KBr and NaBr to lower the melting point of the composition. The composition optionally also includes a nucleating agent selected from Ba and Sr salts to reduce supercooling of the composition to 5°C or less.     34,355-F
Patent CA-1334124-C (CA)
Inventor: BERENDS JOHANNES
IPC: C01B3/38
Filed: 1987-11-16
Granted: 1995-01-31
Abstract: A process for producing hydrogen comprising the following steps: (a)  converting a hydrocarbonaceous feed (e.g. natural gas) in a reaction zone at elevated temperature and pressure at least partly into a gas mixture containing hydrogen and carbon monoxide, (b)  removing hydrogen (e.g. by means of pressure swing adsorption) from product gas obtained from step (a), and (c)  combusting hydrogen-depleted off gas obtained from step (b) with an oxygen-containing gas in a combustion zone and employing energy thus produced in at least one step of the process (e.g. for convective heating of the reaction zone or gas compression). The invention further relates to an apparatus suitable for said process.
Patent CA-1318858-C (CA)
Title: Liquid phase adsorption process
Inventor: NAGJI MOEZ M
IPC: B01D15/08
Filed: 1987-11-19
Granted: 1993-06-08
Abstract: ABSTRACT OF THE DISCLOSURE        An improved liquid phase adsorption process is provided using a fixed bed system wherein the conventional post-regeneration bed-filling step and the post adsorption bed-draining step are replaced by a displacement step.  The bed volume of regeneration medium in a first bed of the system undergoing the final stage of regeneration cool-down is passed directly into a second bed of the system in the final stage of the adsorption step whereby the bed volume of void-space feedstock in said second bed is removed therefrom by displacement, thus effectively accomplishing in a single operation the filling step in the first bed and the draining step in the second bed.
Patent CA-1287699-C (CA)
Title: Indirect firing fastener driving tool
Inventor: ALMERAS ROLAND
IPC: B25C7/00
Filed: 1987-12-16
Granted: 1991-08-20
Abstract: INDIRECT FIRING FASTENER DRIVING TOOL            ABSTRACT OF THE DISCLOSURE           An indirect firing fastener driving tool is pro-vided including a barrel (51), a piston (6) sliding in the barrel for driving a fastener (3) housed in a fastener gui-de (7). Between the barrel (51) and the fastener guide (7) are disposed a rigid ring (22) and a resilient ring (24). Inside the resilient ring (24) is disposed a rigid ring (27) for limiting the stroke of the ring (22) intended to be received in a recess (25) provided at the rear part of the fastener guide (7). The head (14) of the piston is of a truncated cone shape and may cooperate with a bore (23) of corresponding shape in the rigid ring (22). The rings serve as absorber for the piston (6) whose stroke is thus controlled.   The tool is used mainly for boarding buildings.            (Fig. 1)
Patent CA-1317626-C (CA)
Inventor: DAIGRE JEAN C
IPC: A47B47/00
Filed: 1988-01-27
Granted: 1993-05-11
Abstract: A dismantleable stow-away box and an item of stow-away furniture made with said boxes. The stow-away box (1) of prismatic shape comprises at least two lateral walls (2), a bottom wall (3), an upper wall (4) and a lower wall (5), which are assembled together. The box is noteworthy, in particular, in that the means for assembling at least the bottom wall (3) with the two lateral walls (2) each consist of a groove (16) made at the vertical edge of one of the walls and of a tenon  (7) made at the vertical edge of the adjacent wall and intended to penetrate into the groove (6), the said tenon and the said groove each having a mutually complementary trapezoidal cross section, the said cross section having non-parallel sides which slant by an amount which leads to the tenon (7) being locked in the groove (6) by means of a cone effect. <IMAGE>
Patent CA-1292461-C (CA)
Title: Endoscope
Inventor: TERADA HIROMU
IPC: A61B1/00
Filed: 1988-02-01
Granted: 1991-11-26
Abstract: ENDOSCOPE     ABSTRACT OF THE DISCLOSURE   An endoscope comprising as an image-transmitting member a multifilament type plastic optical fiber, an object lens arranged on one end of the optical fiber and a device for guiding an image of an object transmitted to the other end of the optical fiber to an image-receiving portion, wherein the multifilament type plastic optical fiber has an islands-in-sea structure in which 50 to 10,000 light-transmitting core-sheath structure islands having a diameter of 5 to 200 µ are arranged in the sea so that the same positional rela-tionship of the islands is maintained on both ends of the optical fiber, and the core occupancy ratio in the total cross-section of the optical fiber is at least 50%.
Patent CA-1326312-C (CA)
Inventor: SONG YOON S
IPC: C10N60/04
Filed: 1988-03-22
Granted: 1994-01-18
Abstract: Abstract of the Invention Improved dispersant and VI-improving Mannich composi-tion having reduced susceptibility to viscosity increase during storage, which composition comprises a physical blend prepared by admixing a phenolic compound with a Man-nich condensation product obtained from the Mannich reaction of an oxidized polymer, an amine and a formalde-hyde-yielding reagent.
Patent CA-1301103-C (CA)
Title: Process and apparatus for mixing fluid catalytic cracking hydrocarbon feed and catalyst
Inventor: HADDAD JAMES H
IPC: C10G11/18
Filed: 1988-04-29
Granted: 1992-05-19
Abstract: PROCESS AND APPARATUS FOR MIXING FLUID CATALYTIC      CRACKING HYDROCARBON FEED AND CATALYST                     Abstract of the Disclosure A process and apparatus for mixing fluid catalytic cracking hydrocarbon feed and catalyst is disclosed.  Lift gas passes through a first conduit which is axially aligned with a second conduit.  A downstream end of the first conduit and an upstream end of the second conduit are located within a catalyst bed enclosed by a chamber.  The second conduit axially injects catalyst and lift gas into an upstream end of an elongated fluid catalytic cracking riser while passing hydrocarbon feed into the riser through an annular zone about the upstream end of the riser.  Preferably steam also passes through this annular zone.  The process and apparatus achieves substantially uniform catalyst-to-oil ratio across a horizontal cross-section of the riser.  A process and apparatus for control of the level of the catalyst bed in the enclosed chamber by employing a control gas stream is also disclosed.
Patent CA-1315822-C (CA)
Title: Security credit card
Inventor: FRANKFURT ROBERT
IPC: B42D25/36
Filed: 1988-04-29
Granted: 1993-04-06
Abstract: ABSTRACT           An unique credit card which can be registered to the holder and is virtually as unique as a finger print.  A preferred embodiment of the invention is a credit card comprising a plastic bse layer containing one or more distinctive gems retained thereto.  Preferably the gem or gems are contained within receptacles in the plastic base layer.  The distinctiveness of the gems can be recorded against the name of the proper holer, and fraudulent possession of the card detected.
Patent CA-1292407-C (CA)
Title: Wire drive apparatus for wire saw
Inventor: KUBO SETSUO
IPC: B23D57/00
Filed: 1988-07-29
Granted: 1991-11-26
Abstract: ABSTRACT OF THE DISCLOSURE        A wire drive apparatus for a wire saw is provided for cutting structures of reinforced concrete with a wire and which is easily movable on the base surface such as the surface of the road or floor without using cranes. The wire drive apparatus includes a carriage, a wire drive pulley for endless circulation of the cutting wire and a pulley drive means for turning the wire drive pulley that are installed on the carriage.  Rails are laid on the surface of the road or floor.  Front and rear wheels allow the carriage to travel on the rails. Wheel drive means turns the front and rear wheels. Supplementary front and rear wheels hold the carriage so as to be movable on the base surface having points of contact with the base surface at a lower level than those of the front and rear wheels.  At least one pair of the supplementary wheels are provided with a steering means.  When the front and rear wheels are engaged with the rails, the supplementary front and rear wheels float above the base surface. When the supplementary front and rear wheels touch the base surface, the front and rear wheels float above the base surface.
Patent CA-1309841-C (CA)
Title: Pyrolysis heater
Inventor: FERNANDEZ-BAUJIN JORGE M
IPC: C10G9/00
Filed: 1988-08-25
Granted: 1992-11-10
Abstract: PYROLYSIS HEATER            ABSTRACT OF THE INVENTION           The first half and preferably only the first quarter of a pyrolysis coil for treating hydrocarbons is provided with extended heating surface for increasing the adsorption of radiant heat.  The extended heating surface may be on the inside or the outside of the tubes and may be in the form of studs or fins or ribs.
Patent CA-1298976-C (CA)
Title: Recovery of noble metals
Inventor: GULLIVER DAVID J
IPC: B01D11/00
Filed: 1988-10-19
Granted: 1992-04-21
Abstract: Case 6772(2) ABSTRACT OF THE DISCLOSURE    A process for recovering Group VIII noble metals from tar is provided.  The process involves heating a mixture of the Group VIII noble metal, tar and methyl iodide in a closed system at a temperature in excess of 50°C.  During the process the Group VIII noble metal is precipitated in an insoluble form which can be separated by e.g. filtration.  Precipitation preferably takes place at a temperature in the range 120 to 180°C.  The process is particularly suitable for the recovery of either rhodium or iridium.
Patent CA-1314080-C (CA)
Title: Method and apparatus for quadrature modulation
Inventor: LEITCH CLIFFORD D
IPC: H04L27/20
Filed: 1988-11-17
Granted: 1993-03-02
Abstract: ABSTRACT OF THE DISCLOSURE       A quadrature amplitude modulation system utilizes two subcarrier signals, each quadrature modulated with information signals which are quadrature modulated onto the RF carrier.  This provides a hole in the center of frequency spectrum, permitting carrier and bit sync signals can be provided in the center area of the signal spectrum.
Patent CA-1333228-C (CA)
Inventor: JARVINEN MARJA-LEENA
IPC: G01N21/67
Filed: 1988-11-25
Granted: 1994-11-29
Abstract: The present invention relates to a measuring sensor for a portable analyzer utilizing optical emission, wherein the optical emission is dispersed into a spectrum by using grating-based spectrographs.  In order to disperse the optical emission  into  a  spectrum,  the  measuring  sensor  of  the invention contains at least one dispersing and one focusing component.  Moreover, the sensor comprises a line detector whereby the spectrum created from the emission is detected.
Patent CA-1303256-C (CA)
Title: Scintillation crystals for positron emission tomography having a non reflecting band
Inventor: THOMPSON CHRISTOPHER J
IPC: G01T1/202
Filed: 1988-12-14
Granted: 1992-06-09
Abstract: Canada Abstract Arrays   of    scintillation   crystals   disposed   on   the circumference of  d cylinder  are used  to detect the annihilation photons  emitted  after  positron  decay of isotopes within a body section.  At  the  point  of  equi-probable  depth  of  gamma  ray interaction the  surface treatment  of each crystal is modified to absorb the  light which  otherwise would  have been reflected by a small length of that surface. While light emitted from the rear of the crystal  is nearly constant with depth, light emitted from the top  front  of  the  crystal  is  much  reduced  if  the gamma ray interacts behind  the absorbing band. When readout devices measure the light  emitted from the top-front and near face simultaneously it is  possible to  detect the  region of interaction. This can be used  to  improve  the  spatial  resolution  of a positron imaging system.
Patent CA-1305086-C (CA)
Title: Process for the hydroisomerization and hydrocracking of fischer-tropsch waxes to produce a syncrude and upgraded hydrocarbon products
Inventor: HAMNER GLEN P
IPC: C10G65/12
Filed: 1988-12-16
Granted: 1992-07-14
Abstract: ABSTRACT OF THE DISCLOSURE         A process for producing a pumpable syncrude from a Fischer-Tropsch wax by fractionating the wax into relatively low boiling fraction containing oxygenate compounds and a relatively high boiling frac-tion which is substantially free of oxygenate compounds and thereafter isomerizing/hydrocracking the low boil-ing fraction in the presence of hydrogen and a fluo-rided Group VIII metal-on-alumina catalyst.  The pre-ferred Group VIII metal is platinum.       The pumpable syncrude is thereafter frac-tionated to produce a low boiling fraction which is thereafter isomerized/hydrocracked in the presence of hydrogen and a flourided Group VIII metal-on-alumina catalyst to produce upgraded middle distillate fuel products.  The preferred catalyst for middle distillate production is fluorided platinum-on-alumina catalyst where a major portion of the fluoride within the catalyst is present as aluminum fluoride hydroxide hydrate.
Patent CA-1306605-C (CA)
Title: Sealed rotary hearth furnace
Inventor: DOCHERTY JAMES P
IPC: F27D99/00
Filed: 1988-12-29
Granted: 1992-08-25
Abstract: SEALED ROTARY HEARTH FURNACE            ABSTRACT OF THE DISCLOSURE     The furnace has a hearth which rotates inside a stationary closed chamber and is  supported therein on circumferentially  spaced  rollers  the shafts  of  which extend outside the furnace wall and are cantilevered in bearings.  The shafts are sealed to the furnace wall by mechanical and pressurized gas sealing means.  The charge is deposited through the furnace roof on the rim of the hearth as it rotates and is moved toward the center of the hearth by rabbles.   Externally generated hot gases are introduced into the furnace chamber below the hearth and  rise  through  perforations  in  the  hearth  and  up through the charge.  Exhaust gases are withdrawn through the furnace roof.   Treated charge drops from a center outlet on the hearth into a soaking pit which extends downwardly through the furnace floor to which it is also sealed.
Patent CA-1311042-C (CA)
Title: Subassembly for optoelectronic devices
Inventor: BLONDER GREG E
IPC: G02B6/42
Filed: 1989-02-28
Granted: 1992-12-01
Abstract: SUBASSEMBLY FOR OPTOELECTRONIC DEVICES Abstract A subassembly for use in packaging an optoelectronic device (e.g., LED or photodiode) includes a semiconductor (e.g., silicon) base and lid having a variety of etched features (e.g., grooves, cavities, alignment detents) and metalization patterns (e.g., contacts, reflectors) which enable the device to bereliably and inexpensively mounted on the base and coupled to the fiber.
Patent CA-1320512-C (CA)
Title: Door closer
Inventor: KOPEC JOHN
IPC: E05F3/10
Filed: 1989-03-08
Granted: 1993-07-20
Abstract: Abstract:     A door closer of the kind which acts between a door hinge stile and a hinge  jamb has a body for mounting  usually  in  the stile,  and  from  the  body a  spring-biased  tension member  extends  for anchoring to  the  jamb.    A  hydraulic  cylinder  piston  damper is interposed  between  the  tension  member  and  its biasing  spring,  the  damper  incorporating  no  unidir-ectional  valve  means  and  instead  its  piston  being undersized  relative  to  the  cylinder  by  an  amount predetermined  by  the  viscosity  of  hydraulic  fluid in the damper so as to allow fluid to flow restrictedly around  the  piston  when  the  tension member  is moved in door-closing and door-opening directions.
Patent CA-1327728-C (CA)
Inventor: ARAKAWA MASAYASU
IPC: E01B25/28
Filed: 1989-04-26
Granted: 1994-03-15
Abstract: ABSTRACT OF THE DISCLOSURE           A conveying carrier is arranged to automotively move along a conveying passage.  A pit is formed at the widthwise center portion of the conveying passage.  A guide rail is laid within the pit.  A track is formed to cover the top side of the pit and is flush with the road surface of the conveying passage.  A slit is formed  at  the widthwise  center  of  the  track with  the  slit communicating with the pit.  A plurality of wheels are attached to the conveying carrier to contact the road surface of the conveying passage.  At least the front wheels are casters.  A steering frame is pivotally supported on the conveying carrier and is turnable about a vertical steering axis line.   A driving wheel and an automotive motor for driving the driving wheel are attached to the steering frame, with the driving wheel being positioned to contact the track at a location substantially directly below the vertical steering axis line.  A guide member is guided by the guide rail for movement and is connected to the steering frame through the slit.          The pit is constructed of a substantially U-shaped track frame buried in the widthwise central portion of the conveying passage.          The track is formed of a pair of cover plates which are detachably mounted on the upper ends of side plates on both sides of the track frame as to leave a slit therebetween.   The track frame can comprise an extruded material formed to have on the inner sides thereof continuous dovetail grooves extending in the longitudinal direction and one track frame can be connected to the other track frame by way of a dovetail-shaped joint member which engages with the dovetail grooves of both of the track frames at the joint portions.   The track frame can also be provided with a channel groove capable of receiving therein nuts for fastening the guide rail to the track frame, with the channel groove being formed continuously in the longitudinal direction of the track frame.
Patent CA-1336908-C (CA)
Inventor: MARCHIONNI GIUSEPPE
IPC: C08K5/06
Filed: 1989-04-28
Granted: 1995-09-05
Abstract: Fluoropolyethers   having   functional   groups, consisting of random distributed sequences of perfluoropoly-oxyalkylene units selected from:       ; -CF2-CF2-O-;  -CF2O-  ;    and comprised in one of the following formulae:            (I   )   (II ) T'-O-(CF2CF2O)p(CF2O)s-CRR'-Y            (III)   where T, T', T" are a perfluoroalkyl group containing from 1 to 3 carbon atoms and one or two atoms of Cl, Br or I,  R, R' are halogen atoms, Y is a functional group, o, q are numbers, zero included, such that o+q = 1-20, n are numbers ranging from 1 to 15, m/n is a ratio ranging from 0.01 to 0,5, p are numbers ranging from 1 to 20, s/p is a ratio ranging from 0.5 to 2, z/o+p is a ratio ranging from 0.01 to 0.05.  These compounds are particularly capable of reacting with organic and inorganic substrates, as well as with end groups containing 1 or 2 atoms of a halogen different from fluorine.    They can be used as  surface modifiers  for polymeric  and  inorganic  materials,  in  order  to  impart properties, which are typical of the fluorinated products, such   as   water-   and   oil-repellency,   low   friction coefficients, low refraction index and the like.
Patent CA-1306544-C (CA)
Title: High speed relational data base processor
Inventor: WIMER TED L
IPC: G06F9/30
Filed: 1989-05-30
Granted: 1992-08-18
Abstract: ABSTRACT OF THE DISCLOSURE           The present invention is a data base information engine subsystem which examines data on the fly as it is retrieved from a mass storage device (i.e., disk), and before storing it in memory, to select only the specified elements of data required by the host computer according to criteria set forth by the host computer.  A page mapper circuit separates the host command processing from the data access processing for the command.  The instruction set used by the information engine subsystem contains optimizing algorithms to parse and reorder the required operation to be most efficient (with respect to time).  The information engine subsystem also contains a high speed processor which is a special purpose processor designed and optimized for data retrieval while doing operations on the data at high speed.
Patent CA-1335215-C (CA)
Inventor: WATTS LAVAUGHN F JR
IPC: G06F3/147
Filed: 1989-06-12
Granted: 1995-04-11
Abstract: An electronic terminal (10) employs a liquid crystal display for  displaying  desired   characters.   The   terminal (10) has circuitry  for  providing  attributes  to  the  characters,  on a character-by-character  basis  or  on  a  plurality  of character basis.   These  attributes  include  double width, double height, underline, inversion and intensity control.  These attributes are formed using minimal additional memory and circuitry.