baber/WOPTO huggingface dataset:
Patent CA-2033825-A1 (CA)
Title: Static tape cassette reel lock
Inventor: BUSHWOOD TIMOTHY
IPC: G11B23/087
Filed: 1991-01-09
Abstract: ABSTRACT      A static tape cassette reel lock is described. In one embodiment a tape reel flange has on the outer circumference thereof a plurality of teeth, and the cassette base includes a plurality of slanted vertical ribs and a centered slanted horizontal rib. The teeth of the flange, are able to move past the angled ribs so that the tape real can rotate in one direction, but does not allow rotation in the other direction. In another embodiment the reel hub includes a chamfered ring of teeth. The cassette base includes a corresponding ratchet ring of ramped teeth. Again, rotation in one direction is allowed, but not in the opposite direction.
Patent CA-2034720-A1 (CA)
Title: Process for preparing highly substituted phenyls
Inventor: ROBL JEFFREY A
IPC: C07D309/30
Filed: 1991-01-22
Abstract: Abstract PROCESS FOR PREPARING HIGHLY SUBSTITUTED PHENYLS         A process is described in which a lactone   is reacted with an alkylester X1-CH2 and an oxidizing or dehydrogenating agent to form the phenol ester
Patent CA-2036114-A1 (CA)
Inventor: SMITH Z EROL III
IPC: G01J3/02
Filed: 1991-02-11
Abstract: A compact, self contained image resolving and sensing apparatus of the type used in electronic imaging applications includes a plurality of sensing devices such as photodetectors formed on a transparent substrate capable of resolving a polychromatic  image incident  thereupon.  The mechanism by which the substrate resolves the incident image may be refraction, diffraction or other suitable mechanism.  The sensing devices are sized and located on the substrate  such that they are capable of detecting one or more wavelength components of the resolved polychromatic image. Logic and select circuitry may be formed on the substrate generally contemporaneously and of similar materials as the sensing device.
Patent CA-2037216-A1 (CA)
Title: Testing of optical fiber by introducing multiple simulated peel location bends
Inventor: JONES VINCENT L
IPC: G01M11/00
Filed: 1991-02-27
Abstract: TESTING OF OPTICAL FIBER BY INTRODUCING MULTIPLE SIMULATED PEEL LOCATION BENDS               ABSTRACT OF THE DISCLOSURE        The  optical  characteristics  of  an  optical fiber  (28) are studied by simultaneously introducing multiple  small-radius  bends  into a short length of the  optical fiber (28).  Since there is a small loss of  light associated with each bend, those losses are added  and  made  easier  to measure and analyze when multiple  bends  are used.  The optical fiber (28) is wound  over  a  mandrel  (10,  50)  that is shaped to include  at  least  two simulated peel location bends of  the  optical  fiber  (28)  wound onto the mandrel (10,  50),  and,  preferably,  four or more simulated peel  location  bends  per turn of optical fiber (28) around the mandrel (10, 50).
Patent CA-2037853-A1 (CA)
Title: Ophthalmic lens manufacture
Inventor: NORVILLE FRANK G
IPC: B24B13/06
Filed: 1991-03-06
Abstract: A B S T R A C T             "OPHTHALMIC LENS MANUFACTURE"           In  the manufacture  of  an  ophthalmic  lens according to a prescription P, a lens blank is ground to the desired dioptre  surface and finished on a lens surfacing machine LSM.  The prescription details of the lens are fed into a computer C which is programmed to determine the appropriate speed and time for lens surfacing after grinding, and produce on a printer PR a corresponding document or job sheet JS which combines visual information 1 for an operative as to the lapping die or lap to be selected and a "job" identifier 2 which provides computer identification  of  the particular  job to which  the prescription P and document JS relate.  The identification of the job by the computer C results in computer control of the lens surfacing machine LSM in respect of lapping speed and time for the lens finishing operation.
Patent CA-2040830-A1 (CA)
Title: Electromagnetic stirring device in an ingot mould
Inventor: KAELL NORBERT
IPC: B22D11/12
Filed: 1991-04-19
Abstract: The invention relates to an electromagnetic stirring device in an ingot mould in a continuous casting installation with a mould and an inductor for producing a rotational movement of the molten metal in the mould.        To permit implementation of free-stream casting and submerged-nozzle casting in the same device, the inductor is vertically displaceable relative to the mould.
Patent CA-2041317-A1 (CA)
Title: Rib structure for an umbrella
Inventor: LIU FU-TIEN
IPC: A45B25/02
Filed: 1991-04-26
Abstract: RIB STRUCTURE FOR AN UMBRELLA          Abstract of the Disclosure This invention relates to an umbrella rib structure in which a positioning seat is provided at a proper location on the rib so that a fixing member can easily slide into that positioning seat, but is held against removal therefrom.  A flexible linking spoke is loosely enclosed by the fixing member, thereby slidably connecting it to the rib adjacent the posi-tioning seat.
Patent CA-2041853-A1 (CA)
Title: Rotary printing machine
Inventor: WALLMANN WILFRIED
IPC: B41F17/00
Filed: 1991-05-06
Abstract: ABSTRACT OF THE DISCLOSURE            This invention refers to a rotary printing machine with at least one counterpressure cylinder and at least two printing belt cy-linders around which a continuous printing belt carrying print-ing forms and printing pictures is led, with one cylinder there-of being provided with a radial ring of pins in the region of each of its ends, wherein the pins thereof mesh with holes of edge-side tracks of holes of the printing belt for a slip-free guiding of the latter. For the solution of the problem to deve-lop a rotary printing machine of that kind which can be easily and rapidly converted for continuous printing belts of different width without exchanging the printing cylinder, the printing belt cylinder is provided with bores at a distance Prom the end-side pin rings on at least one circumferential line correspond-ing to the distance of the pin spacing of the pin rings, in which extendable and retractable pins are arranged.
Patent CA-2042258-A1 (CA)
Title: Electrodeless hid lamp with microwave power coupler
Inventor: LAPATOVICH WALTER P
IPC: H05B41/24
Filed: 1991-05-09
Abstract: An electrodeless lamp may be formed with a capsule having a radiant energy transmissive material defining an approximately cylindrical enclosed volume having an external length less than 20.0 millimeters, and an outer diameter less than 8.0 millimeters. The enclosed volume is filled with a lamp fill excitable by a high frequency electromagnetic field to produce radiant energy. The small size capsule produces a particularly efficient, orientation tolerant arc discharge. The arc is then highly stable as to position, yielding a good optical source to design for. The temperature gradient is small, thereby yielding little thermal stress on the capsule. An electrodeless HID headlamp system may be formed with the efficient capsule from a radio frequency source operating from a the power supply of a typical automobile. The headlamp system includes a high frequency power source, a transmission line, a coupler, an excitable lamp fill captured in a lamp capsule, a reflector and a lens.
Patent CA-2043176-A1 (CA)
Inventor: ALBAUGH VIRGIL A
IPC: G06T15/40
Filed: 1991-05-24
Abstract: A method and apparatus is provided which allows a computer  graphics  system  to  accurately  determine  the actual depth value for pixels on a display screen which lie at the same depth as an associated surface.   The associated surface is identified such that the delta z value with respect to the x and y direction along the surface can be calculated.   The present invention then determines whether the line being considered is contained within  a  surface,  or  is  an  edge  lying between,  and adjacent  to  two  surfaces.   If  the  line  is  contained within a surface, the delta z value is initially added to the known endpoints of the line and then successively added,  in the  incremental x or y directions,  to  the pixels selected to represent the line. If the line is an edge,  and includes  selected pixels which lie on both associated surfaces,  a filter is invoked that prevents those pixels corresponding to the surface, other than the surface  first being considered,  from being processed. The pixels being considered are then drawn in the same manner as a line within a surface.  In this manner, the actual z value for each selected pixel can be determined and any hidden line, hidden surface removal problems are eliminated.
Patent CA-2044258-A1 (CA)
Title: Fluid compositions for refrigeration compressors and process for preparing the same
Inventor: MCGRAW PHILIP W
IPC: C10N40/30
Filed: 1990-10-11
Abstract: Refrigeration fluid compositions for compression refrigeration which have an upper solution critical temperature equal to or greater than about 35 ·C are composed of selected hydrochlorofluorocarbons and hydrofluorocarbons with esterified polyether polyols in which at least 30 percent of the hydroxyls are esterified. The esterified polyether polyols have a viscosity of between 6 and 150 centistokes (6 x 10-6 and 15 x 10-5 m2/s) at 38 ·C. These esterified polyether polyols are more soluble in refrigerant R134a than their polyglycol precursors.
Patent CA-2045771-A1 (CA)
Inventor: BRODRICK RONALD F
IPC: B65F3/02
Filed: 1991-06-26
Abstract: The invention relates to the weighing of material being lifted by the fork of a truck or the like.  The weight of a mass which is being lifted, i.e. by the fork of a truck, may be usefully determined by means of strain gauges which are functionally interrelated with the lifting element.  The invention provides, in combination, mass support means, vehicle means and arm means which interconnect the mass support means with the vehicle means for relative movement therebetween.  Strain gauges are carried by the arm means.  In preferred embodiments, eight strain gauges are carried by a pair of generally upside down U shaped supports to which the fork is pivotally cantilevered, two strain gauges being matted on a front arm and two strain gauges on a back arm of each of the supports.
Patent CA-2045959-A1 (CA)
Inventor: HAYASHI HARUYUKI
IPC: G10L17/26
Filed: 1991-06-28
Abstract: A speech recognition apparatus for a speech recognition answering system which uses telephone channels and having a function of detecting a PB (PUSH BUTTON) signal. A speech recognition unit recognizes a speech signal from an input signal, while a PB detection unit detects a PB signal from an input signal. A control unit automatically determines whether an input signal is a speech signal or whether it is a PB signal on the basis of the outputs of the speech recognition unit and PB detection unit.
Patent CA-2048057-A1 (CA)
Title: Door closers
Inventor: REID ALISTER P
IPC: F16F9/16
Filed: 1991-07-30
Abstract: Abstract:       "IMPROVEMENTS IN OR RELATING TO DOOR CLOSERS"  The door closer is of the kind which acts, for example between a door hinge stile and a hinge jamb and has a body for mounting usually in  the  stile,  from which body a spring-biased tension member extends correspondingly for anchoring to an anchoring point (for example in said jamb), wherein a hydraulic cylinder-piston damper is interposed between said tension member and a biasing spring therefor, said damper being adapted to allow fluid in use to flow restrictedly past said piston when said tension member (12) is  moved  in  door-closing  and  door-opening  directions; characterised  in  that  the  cylinder  of  the  hydraulic cylinder piston damper is formed of a plastics material, and the cylinder is resiliently expansible in response to an increase in pressure therein such that the clearance between the piston and cylinder is increased to permit increased flow of fluid around the piston.
Patent CA-2048181-A1 (CA)
Title: Spin-stabilized artificial satellite with passive compensation of solar radiation pressure
Inventor: REBOUX ALAIN
IPC: B64G1/44
Filed: 1991-07-31
Abstract: TITLE OF THE INVENTION          "Spin-stabilized artificial satellite with passive compensation of solar radiation pressure TEXT OF THE ABSTRACT A  satellite  (1)  adapted  to  be  stabilized  in terrestrial orbit by rotation about an axis (z) oriented at  least  approximately  NORTH-SOUTH comprises  on  its external wall a solar generator comprising a plurality of columns  (9)  of  solar  cells  (5)  divided  into  groups adapted to supply at least one given electrical voltage. In each of  a plurality of groups  (G1,  G2,  G3)  equi-angularly distributed in the circumferential direction, the cells straddle two columns electrically connected by at least two electrical connections (10) forming with the group(s)  to which the connections belong an electrical loop.   The clockwise or counterclockwise direction of current flow is the same for at least the majority of said electrical loops and is so chosen that, at any time, the loops which are illuminated at this time by the Sun, by virtue by interaction with the terrestrial magnetic field,  produce  a  compensating  torque  in  the  opposite direction to the solar radiation pressure torque. (Figure 2).
Patent CA-2050381-A1 (CA)
Title: Process and apparatus for fabricating honeycomb material
Inventor: GOODHUE WILLIAM V
IPC: B32B37/00
Filed: 1991-08-30
Abstract: A process and apparatus for making expandable honeycomb structures  suitable  for use  as window  coverings.    In  one embodiment, folded tubular strips with adhesive lines are fed continuously through a cutter which cuts them into predetermined lengths.  The cut strips are then accelerated to a stacker for further processing before the next cut strip arrives.  In another embodiment, webs of material are fed continuously in a downstream direction, adhesive lines are applied, a middle web is slitted into strips, and the strips bonded along opposite edges to the outer webs.  By choosing for the outer webs transparent or porous material, and for the middle web opaque material, a light or air controlling honeycomb structure results.
Patent CA-2053336-A1 (CA)
Title: Pneumatic tire
Inventor: ONODA MAKOTO
IPC: B60C9/22
Filed: 1991-10-11
Abstract: A pneumatic tire is provided herein which comprises a carcass and a band which is disposed radially-outside the carcass and inside a tread. The band is made of parallel cords wound spirally around a breaker. The band includes two circumferential portions which are comprised of a parallel cord portion in which the windings of the band cords are laid in parallel with the tire equator, and an inclined cord portion in which the windings of the band cords are laid at an inclination angle of 0.3 to 5 degrees to the tire equator. The circumferential length of the inclined cord portion is 20 to 50% of the whole 360 degree circumferential length of the band.
Patent CA-2054106-A1 (CA)
Title: A fluorocarbon-based coating film and method of manufacturing the same
Inventor: OGAWA KAZUFUMI
IPC: C03C17/42
Filed: 1991-10-24
Abstract: ABSTRACT     Disclosed  is  a  step of  contacting  a  substrate having a surface containing hydroxyl groups with a non-aqueous   solution   containing   a   material   having   a chrolosilyl group,  a step of coating the substrate with a  non-aqueous  solvent  containing  a  compound  having  a fluorocarbon group and a chlorosilane group or a solvent containing  a  compound  containing  a  fluorocarbon  group and an alkoxysilane and a step of baking the substrate after the contacting and coating steps a fluorocarbon-based  polymer  coating  film  chemically  bonded  to  the substrate surface can be obtained.  Wherein the hydroxyl groups on the substrate surface and chlorosilyl groups of the material having a chrolosilyl group are reacted to  form a thin film having a  large number of silanol groups (-SiOH) capable of connecting the polymer coating film to the substrate.
Patent CA-2054438-A1 (CA)
Title: Additives to feminine hygiene products
Inventor: BROWN-SKROBOT SUSAN K
IPC: A01N37/02
Filed: 1991-10-29
Abstract: Nonabsorbent products and douche compositions for cleansing and placement within the vagina contain an amount of a compound effective to inhibit the production of toxic shock syndrome toxin-1 and Enterotoxins A, B  and C when the products are brought into contact with the bacteria. The products and compositions of this invention are also effective in combatting streptococcal pyrogenic exotoxin and hemolysin production by Groups A, B, F and G streptococci. The compound is selected from the group consisting of monoesters of a polyhydric aliphatic alcohol and a C8-C18 fatty acid; diesters of a polyhydric aliphatic alcohol and a C8-C18 fatty acid; and mixtures thereof. The monoesters and diesters have at least one hydroxyl group associated with their aliphatic alcohol residue.
Patent CA-2055380-A1 (CA)
Title: Stable solid form antimicrobial compositions comprising 3-isothiazolones
Inventor: REDLICH GEORGE H
IPC: A01N43/80
Filed: 1991-11-13
Abstract: Abstract of the Disclosure Solid, stable forms of 3-isothiazolones microbicidal compositions and articles using a carrier which functions to stabilize the microbicide against chemical decomposition at room temperature and at applications temperature.
Patent CA-2056319-A1 (CA)
Title: Luggage cart
Inventor: STEIN EDWARD B
IPC: B62B1/20
Filed: 1991-11-29
Abstract: ABSTRACT OF THE DISCLOSURE A luggage cart for attachment to a bottom side of a luggage case including a frame structure having a length less than a bottom of a luggage case.  The frame structure has wheels secured to the frame structure at one end of the cart for ground supporting the cart when on a floor.  An expandable handle structure is secured in telescoping relation with  posts on the frame structure at an opposite end of the cart remote to the wheels.  The handle structure has a handle extendible from the posts for hand pulling of the cart on the wheels.          Relatively movable cart mounting brackets are provided at opposite ends of the frame structure.  The brackets havehood-shaped ends to enable each of the brackets to be secured in clamped assembly with opposite ends of a piece of luggage.          Fasteners are retainingly engaged between the relatively movable brackets and the frame structure to lock the brackets to the frame structure in a fixed position relative to one another thus enabling the cart to be attached to luggage cases of varied lengths.
Patent CA-2056970-A1 (CA)
Title: Antitumoral and antiviral compound
Inventor: NORTHCOTE PETER T
IPC: A61K35/56
Filed: 1991-12-06
Abstract: ABSTRACT            The novel compound pateamine of formula   has antitumour and antiviral activity. Immuno-suppressive activity is also present.
Patent CA-2058318-A1 (CA)
Title: Miniature multiple electrical connector
Inventor: IGARASHI YOSHIAKI
IPC: H01R13/648
Filed: 1991-12-23
Abstract: MINIATURE MULTIPLE ELECTRICAL CONNECTOR               ABSTRACT OF THE DISCLOSURE       A miniature multiple electrical connector consists of a plug connector and a receptacle connector having an insulating block and a metal shell.  The metal shell is fixed to the insulating block by fitting anchoring protrusions provided along both sides of the insulating block in anchoring apertures of fixing tongues provided on the metal shell.  When the plug connector is being inserted into the receptacle connector, the metal shell of the receptacle connector is likely to be deformed by a metal shell of the plug connector.  In order to prevent such a deformation of the metal shell, there is provided means for anchoring the center of the metal shell weakest in mechanical strength to the insulating block or means for preventing application of a force to the center of the metal shell when the plug connector is being inserted into the receptacle connector.
Patent CA-2059873-A1 (CA)
Title: Partially crystallizable glass compositions
Inventor: HAUN MICHAEL J
IPC: C03C3/087
Filed: 1992-01-22
Abstract: Abstract PARTIALLY CRYSTALLIZABLE GLASS COMPOSITIONS            The invention is directed to an amorphous partially crystallizable alkaline earth zinc silicate glass and modifications thereof.
Patent CA-2061592-A1 (CA)
Inventor: YEATER ROBERT P
IPC: C08G18/28
Filed: 1992-02-20
Abstract: Mo-3568 STABLE DISPERSION OF POLYHYDRAZODICARCONAMIDES USEFUL IN THE PREPARATION OF POLYURETHANE PRODUCTS HAVING IMPROVED                 LOAD-BEARING CAPACITY              ABSTRACT OF THE DISCLOSURE    The present invention is directed to a process for preparing a stable dispersion, the dispersion so-produced, and the process of using such dispersion in the preparation of a polyurethane foam. The dispersion is produced by reacting (a) an organic isocyanate, (b) a compound containing at least two isocyanate-reactive hydrogen atoms and having a molecular weight of from 400 to 10,000, (c) an alkanolamine, and (d) a hydrazine, a hydrazide, or a mixture thereof, in the presence of a tin compound capable of catalyzing the reaction between an isocyanate group and a hydroxy group.     Mo3568
Patent CA-2062315-A1 (CA)
Inventor: KLINE KEVIN B
IPC: G05D23/13
Filed: 1992-03-04
Abstract: A thermostatic control valve assembly for use in continuously mixing a hot first fluid with a cold second fluid to continuously produce a mixed fluid at a constant temperature.  The valve assembly includes an improved mixing dome defining a mixing chamber that facilitates thorough mixing of the hot and cold fluids over a wide range of flow rates, including rates as low as two gallons per minute.  The improved mixing performance is accomplished by a plurality of baffles sequentially disposed along the flow path within the mixing chamber.  Each baffle defines an elongated opening which is angularly displaced from the elongated opening of the other baffles to turn the fluid flow, thereby optimally mixing the hot and cold fluids over a wide range of flow rates.
Patent CA-2062456-A1 (CA)
Title: Acylamino-substituted hetrazepines
Inventor: WEBER KARL-HEINZ
IPC: C07D495/14
Filed: 1992-03-06
Abstract: Abstract The invention relates to new acylamino-substituted hetrazepines, processes for preparing them and their use as pharmaceutical compositions.
Patent CA-2069067-A1 (CA)
Title: Variable height shovel
Inventor: LEUNG DAVID S M
IPC: A01B1/02
Filed: 1992-05-20
Abstract: ABSTRACT A shovel with a blade and handle combines with a wheeled apparatus allowing the forward edge of the blade to be maintained at a selectable height above the ground. An axle supports two wheels, and struts extend between the axle and a bracket secured to the shovel handle. The struts can be held in place to extend generally away from the handle to allow the wheels to act as a fulcrum for pivoting the handle to various angulations, or the connection between the strutsand the bracket can be selected such that the struts fold toward the shovel blade, forming an acute angle with respect to the handle, for convenient storage.
Patent CA-2070251-A1 (CA)
Title: Optical traffic preemption detector
Inventor: HAMER STEVEN M
IPC: G08G1/087
Filed: 1992-06-02
Abstract: An optical traffic preemption detector as shown in Figure 2 for detecting pulses of light emitted by an approaching emergency vehicle and providing an output signal which is processed by a phase selector. The phase selector can request a traffic signal controller to preempt a normal traffic signal sequence to give priority to the emergency vehicle. A detector assembly is mounted in proximity to an intersection and can have multiple detector channels. A detector channel can have multiple photocells. The detector includes a housing having a base, at least one detector turret, a cap, and a detector circuit which further comprises a circuit board, a photocell with a lens placed over the photocell, and circuitry to produce an output signal.