baber/WOPTO huggingface dataset:
Patent CA-2041059-A1 (CA)
Title: Method of and apparatus for bending and tempering sheet glass
Inventor: YOSHIZAWA HIDEO
IPC: C03B27/044
Filed: 1990-12-05
Abstract: ABSTRACT OF THE DISCLOSURE        A glass sheet such as an automobile window glass sheet is bent to shape and tempered at one stage by a sheet glass bending and tempering apparatus.  The sheet glass bending and tempering apparatus has solid contact members for pressing a glass sheet, which has been heated nearly to its softening point, to a desired shape and depriving the glass sheet of heat to cool the glass sheet quickly, the solid contact means having a contact surface for contacting the glass sheet and depriving the glass heat of heat therethrough.  The contact surface has a plurality of grooves defined therein, and a plurality of air outlet ports defined in each of the grooves, for applying cooling air to the glass sheet, and a plurality of air inlet ports defined in each of the grooves, for drawing the air applied to the glass sheet. When the opposite surfaces of the glass sheet are pressed by the solid contact members, the pressure is temporarily reduced and then increased again to cool the glass sheet.  The peripheral edge of the glass sheet, which requires a high degrees of shaping accuracy, is cooled quickly by the solid contact members, and the central region of the glass sheet, which requires high optical properties, is cooled quickly by air jets.
Patent CA-2041654-A1 (CA)
Title: Method for eliminating the temperature sensitivity of an optical fiber and a temperature insensitive optical fiber
Inventor: VALI VICTOR
IPC: G02B6/02
Filed: 1990-10-03
Abstract: METHOD FOR ELIMINATING THE TEMPERATURE SENSITIVITY OF AN OPTICAL FIBER AND A TEMPERATURE INSENSITIVE OPTICAL FIBER                 ABSTRACT OF THE DISCLOSURE An optical  fiber  is  constructed by selecting a first material for a core of the optical fiber.   The first  material  has  a  known  coefficient  of  thermal expansion, .alpha.1, and a known temperature dependent rate of change, dn/dT, of an index of refraction, n.  A second material (cladding) has a predetermined coefficient of thermal expansion, .alpha.2, and a radius, R2, about the axis of  the  fiber.    The radius,  R2,  of the cladding is determined such that an effective coefficient of thermal expansion for the fiber is substantially equal to the negative of the product of the reciprocal of the index of refraction of the first material and the temperature dependent rate of change of the index of refraction of the first material, i.e. .alpha. = (-1/n)dn/dT.
Patent CA-2045140-A1 (CA)
Title: Welding method and apparatus
Inventor: DEAM ROWAN T
IPC: B23K9/095
Filed: 1990-01-11
Abstract: A carrier signal is superimposed on the arc current during an arc welding operation, and radiation, either acoustic or light, emitted by the arc detected and analysed, with the results being used to control weld penetration.
Patent CA-2045652-A1 (CA)
Title: Valve
Inventor: HICKS RICHARD B
IPC: A61M16/20
Filed: 1990-02-01
Abstract: 11.          ABSTRACT                                             (Figs 1 & 5) "A VALVE"      Axial displacement between two components (10,17) of a valve occurs as a result of relative rotation through the cooperation of helical ramps (29,31).     Preferably another pair of helical ramps (30,38) is provided concentric with the first but angularly offset 180° with the result that when the components (10,17) are at maximum axial separation the residual contact between the ramps of each pair (shaded areas in Fig. 5e) will be on opposite  sides  of  the axis  x of rotation and prolongation,  thus preventing tilting of the component (17) out of axial alignment with the component (10).    In other constructions more than two pairs of ramps are employed.   In  the  embodiment  illustrated  the  ramp means  of  the  invention replaces a screw-thread to provide adjustment of the loading of a valve spring and permits the use of more economical manufacturing and assembly techniques.
Patent CA-2046583-A1 (CA)
Title: Total gold by cgl
Inventor: DAHYA AMYN S E
IPC: C22B3/02
Filed: 1991-07-09
Abstract: ABSTRACT            In the evaluation of ore bodies for precious metal content, rock and drill core samples are analyzed for the precious metal of interest.  The analyses are most commonly carried out by a technique of smelting called fire assaying.  There are drawbacks in this procedure which arises mainly from quantity of sample material used for the analysis or fire assay step. In the Total Gold CGL technique (also referred to as Casmyn CGL technique), the statistical error, associated with sub-sampling the rock and drill core samples is removed by taking the entire sample for processing and analysis.  The CGL technique consists of grinding the sample in an inert grinding medium and simultaneously dissolving the precious metal present by a lixiviant which is pH controlled.   The apparatus consists of a jar mill lined with a hard ceramic-like material and a ceramic ball charge.  The lixiviant is essentially a sodium cyanide solution which is pH controlled. The precious metal content is evaluated by analysis of the two phases of a homogeneous slurry:  The total gold content of the sample is computed from a metallurgical balance.
Patent CA-2047821-A1 (CA)
Title: Electronic filing system recognizing highlighted original to establish classification and retrieval
Inventor: BUCHAR WAYNE A
IPC: H04N1/00
Filed: 1991-07-24
Abstract: ABSTRACT An electronic filing system is enabled by highlighting handle information on an original document with a fluorescent marking material, and then scanning the document with an illumination source in a single pass. The reflectivity of the highlighted area is greater than the perceived reflection of the remainder of the document being scanned, and this difference in spectral reflectance is used in conjunction with a bi-level threshold sensing device to generate two output signals, one containing the document information, and the other containing only the handle information. Both signals are stored as digital information in system memory; the document is then retrieved by addressing only the handle signal.
Patent CA-2048241-A1 (CA)
Inventor: AHMED IQBAL
IPC: C09J9/00
Filed: 1991-07-31
Abstract: Abstract of the Disclosure In the adhesion of metallic materials to polymers, new adhesive agents of nitrogen containing hetrocyclic polymers such as compositions of imidazole-pyrridine, pyrrolidone-pyridine, and imidazole-pyrrolidone solutions have been discovered as useful.  These agents also exhibit anti-corrosion effects.  Adhesion and/or reduction of anti-corrosion can be accomplished by pre-coating the metal material with at least one of these agents prior to applying the polymer, or by preblending the polymer with at least one of these agents followed by applying the blend to the metal, under suitable conditions.
Patent CA-2048243-A1 (CA)
Title: 4-amino- 4,6-steroids and their use as 5-.alpha.-reductase inhibitors
Inventor: WEINTRAUB PHILIP M
IPC: C07J71/00
Filed: 1991-07-31
Abstract: The present invention relates to 4-amino-.DELTA.4,6-steroids of the formula:   (see formula I) which are useful as inhibitors of 5.alpha.-reductase, for example for treating a patient afflicted with a dihydrotestosterone - mediated disease or condition or for treating benign prostatic hypertrophy in a patient.      The compounds are prepared by the reaction of an appropriate 4,5-epoxy steroid with sodium azide in an inert solvent in the presence of a strong acid such as sulfuric acid at about 100°C.
Patent CA-2050762-A1 (CA)
Title: Flow imaging cytometer
Inventor: KOSAKA TOKIHIRO
IPC: G01N33/48
Filed: 1991-09-05
Abstract: FLOW IMAGING CYTOMETER ABSTRACT OF THE DISCLOSURE:     An imaging flow cytometer is provided with a continuous-emission light source for continuously monitoring cells passing through the image capturing area of a video camera for cell-image capturing, and with an excitation light source for picking up a fluorescent image of a cell. When a line sensor monitoring cell passage through the cytometer senses such cell passage, the cell is irradiated with strobe light and then, after waiting for the cell to move a fixed distance, with the excitation light.  Thus, a particle analyzer is provided in which an image by white light resulting from the strobe light and a fluorescent image resulting from the excitation light can be captured simultaneously by a single video camera in either upper and lower halves or right and left halves of one imaged frame.
Patent CA-2052364-A1 (CA)
Inventor: KINASHI HARUHIKO
IPC: H04L29/06
Filed: 1991-09-27
Abstract: In a common bus communication system in which multiple bus interfaces (2) are connected to the common bus, each bus interface comprises a main memory (21) and an auxiliary memory (28, 29). When a packet destined to the own interface is detected by an address detector (22), memory control data is stored into the auxiliary memory in a location corresponding to a destination user terminal (5;) as well as to the location of the packet in the main memory. When a read request is received from the destination user terminal, control data is fetched from the auxiliary memory and a packet in the data memory is accessed according to the fetched control data, and a copy of the accessed packet is sent to the destination user terminal and following the transmission the control data is updated. Packets propagating along the common bus are stored into the main memory according to the updated control data.
Patent CA-2053608-A1 (CA)
Title: Handle for carrying skis and ski poles
Inventor: GONTHIER BERNARD
IPC: A45F5/10
Filed: 1991-10-17
Abstract: ABSTRACT OF THE DISCLOSURE           A handle for carrying skis and ski poles which comprises a pair of pivotally mounted first and second members adapted to be moved from a closed position engaging skis and poles to an opened position whereby the skis and poles may be retrieved.  The first member has a pair of spaced first portions cooperating with a pair of spaced first portions of the second member to define, in the closed position,  an enclosing area for securely receiving therein a pair of skis in parallel arrangement.  The  first  member  has  a  pair  of  second  portions cooperating with a pair of second portions of the second member  to  define,  in  the  closed  position,  a  pole enclosing area for securely receiving therein a pair of ski poles.  The first and second members each have an intermediate portion interconnecting their respective spaced  second  portions,  the  intermediate  portions extending, in the closed position, parallel and in close proximity  to one  another to thereby define  a hand gripping section allowing the skis and poles to be carried.
Patent CA-2056037-A1 (CA)
Title: Electrodeposition process and device
Inventor: SEKI MITSUHIRO
IPC: C25D13/16
Filed: 1991-11-22
Abstract: ELECTRODEPOSITION PROCESS AND DEVICE     Abstract An electrically conducting surface is applied with an electrodeposition paint by brush coating, roll coating, flow coating or the like coating method using a paint applicator having a container for containing the paint.  An electrode is disposed in the container for contact with the paint contained in the container.  Simultaneously with the application of the paint, a direct current voltage is continuously impressed between the electrode and the conducting surface to effect electrodeposition of the paint onto the conducting surface.
Patent CA-2060143-A1 (CA)
Title: Method for the preparation of organopolysiloxane
Inventor: OKAWA TADASHI
IPC: C08G77/22
Filed: 1992-01-28
Abstract: A method for the preparation of an organopolysiloxane which contains in each molecule at least one phenyl group and at least one silicon-bonded hydrogen atom is disclosed, said method comprising reacting (I) an organopolysiloxane having a molecular weight not exceeding 100,000 and containing in each molecule at least one phenyl group and at least one alkoxy group with (II) 1,1,3,3-tetramethyldisiloxane, wherein the reaction is carried out in the presence of an aqueous hydrochloric acid solution, this aqueous solution preferably further comprising an alcohol.
Patent CA-2063946-A1 (CA)
Title: Method for continuously laminating a coiled metal sheet with a printed film
Inventor: TONOOKA HIROSUKE
IPC: B32B41/00
Filed: 1992-03-25
Abstract: A method for continuously laminating a coiled metal sheet with a roll of a thin film of a synthetic resin, said film having at least two lanes of print portions extending in the logitudinal direction of said film with an intermediate non-printed portion thebetween, whereby the leading end portion, by a pretermined length, of said film is bonded entirely to a portion of the metal sheet and only the printed portions of the rest of said film are bonded, immediately after removal of the non-printed portion therein, to the rest of said etal sheet.
Patent CA-2063975-A1 (CA)
Title: Apparatus and method for plotting using polyline vector lookahead
Inventor: POOLE DAN R
IPC: B41J19/20
Filed: 1992-03-25
Abstract: ABSTRACT OF THE DISCLOSURE       A graphics plotter for drawing a series of connected vec-tor lines forming a plot. The plotter has a motor control for controlling motors which drive a pen to move relative to a medium at a variable velocity in a plane defined by a major axis and a minor axis perpendicular to the major axis. The motor control determines a minimal nonzero terminal velocity of the pen along the major axis at a point at which a maximum change in direction occurs. The motor control has a program for determining a mini-mal nonzero optimal velocity at the point of maximum change in direction. The minimal nonzero optimal velocity is the junction of a ramped-down optimal velocity preceding the point of maximum change in direction and a ramped-up optimal velocity succeeding the point of maximum change in direction. The motor control also includes a double integrating filter implemented in the sampled domain for limiting the acceleration of the pen along the major axis at the point of maximum change in direction to a discrete value such that the difference between the actual pen trajectory and a desired pen trajectory is an amount less than or equal to a predetermined acceptable error.
Patent CA-2064952-A1 (CA)
Title: Shipping container of scrap gypsum board and used for transporting gypsum board scrap for recycling
Inventor: BERGERON LOUIS A SR
IPC: B65D71/00
Filed: 1992-04-02
Abstract: ABSTRACT     A shipping container constructed primarily of pieces of scrap gypsum board and designed for use in handling and transporting gypsum board scrap from various building sites to the manufacturer of gypsum board for recycling.  The bottom or floor and the top or closure of the container consists of larger pieces of scrap such as the pieces left from cutting out spaces for windows or doors or other openings.    The four vertical side walls of the container are composed of stacked layers of approximately 8 inch wide strips of gypsum board scrap, the joints at the four corners being staggered every several layers to provide added strength or stability to the structure.    While the container is still open at the top before the top cover board is put on the container to close it, the container is filled with smaller pieces of gypsum board scrap which usually is run through a chipping machine to break it down into relatively small pieces of scrap waste.    Each container or unit is usually about four feet square and of structurally stable height.  Each container unit is supported upon two or three pedestals that are also composed of narrow, stacked strips of gypsum board scrap, so that a forked lift truck can be moved under the completed and filled container and transfer it with other similar units to a flat bed truck for transportation to the manufacturer for recycling.    The container is bound together by two or three metal or plastic or fiber glass bands, straps, tapes or ribbons which encircle the container, including the pedestals, and are fastened tightly around the unit to provide added stability against breakdown or failure during handling and transportation.
Patent CA-2065219-A1 (CA)
Title: Cosmetic composition in triple emulsion form
Inventor: VESPERINI LAURENCE
IPC: C09K23/52
Filed: 1992-04-06
Abstract: The invention relates to a triple emulsion comprising: (A) a continuous gelled outer aqueous phase, containing, as gelling agent, at least one acrylic or methacrylic acid polymer or copolymer, combined with a polyglyceryl methacrylate; (B) a fatty phase dispersed in the outer aqueous phase, and an aqueous phase (C) dispersed in the fatty phase. Process for preparing a triple emulsion conforming to the invention. Application in cosmetics and dermatology.
Patent CA-2067101-A1 (CA)
Title: Cyclic peroxyacetal lactone and ether compounds
Inventor: VONWILLER SIMONE CHARLOTTE
IPC: B01J31/22
Filed: 1990-09-27
Abstract: A process for preparing a compound containing (a) peroxyacetal lactone, (b) peroxyacetal lactol or (c) peroxyacetal ether functionality comprising oxygenating in the presence of one or more oxidizing metal catalysts a compound containing (i) hydroperoxy alkene carboxylic acid, (ii) hydroperoxy alkene aldehyde, (iii) hydroperoxy alkene keto, (iv) hydroperoxy alkene alcohol functionality or (v) dialkyl acetals of compounds in (ii) and (iii) above. For example (I) $m(8) (II) wherein n = 1, 2 or 3; m = 0, 1, 2, 3 or 4;  p = 0, 1, 2 or 3; R5 = -COOH, -C(O)R, -CROH, (.alpha.), where R  is H, alkyl, aryl or arylalkyl; R1 are independently alkyl, arylalkyl or each R1 together with the group -O-C-O- to which they are attached form a cyclic acetal; X = CR2R3, O, S, SO, SO2 where R2 and R3 are independently selected from H, optionally substituted alkyl, optionally substituted aryl, and wherein when n>1, X is independently selected and can be branched or straight chain and X together with a substituent Y can also form a ring; Y is a substituent selected from H; optionally substituted alkyl or aryl; Y can be on the same C atom as the hydroperoxy group and any C atom may be disubstituted by Y and includes replacement of H atom(s) in "(CH2)m" by Y; R7 or R8 is as defined for R above, H, OH, OR1 or together with the carbon atom to which they are attached form a keto group. The present invention is particularly important in its application to the preparation of biologically active compounds comprising the cyclic peroxyacetal lactone or lactol functionalities. One such biologically active compound is qinghaosu (Artemisinin).
Patent CA-2069228-A1 (CA)
Title: Method for forming a resist pattern
Inventor: SHIRAI MASAMITSU
IPC: H01L21/027
Filed: 1992-05-22
Abstract: Abstract of the disclosure A method for forming a resist pattern comprising applying onto a base plate a resinous composition comprising a compound capable of generating an acid when irradiated with actinic rays to obtain a photosensitive layer, exposing the thus formed layer through a pattern mask to actinic rays, applying onto the whole surface of the said layer an alkoxysilane gas and subjecting the thus treated layer to dry etching to remove unexposed area of said layer to dry etching to remove unexposed area of said layer.         By the adoption of the present method, a very fine resist pattern which is useful for the preparation of semiconductor element, magnetic bubble memory element and the like, can be easily and economically prepared.
Patent CA-2073924-A1 (CA)
Title: Magneto-optical recording method using a magneto-optical recording medium having two or more magnetic layers to allow recording and reproduction to be effected simultaneously and magneto-optical recording medium used in the method
Inventor: KOBAYASHI TADASHI
IPC: G11B11/105
Filed: 1992-07-15
Abstract: A magneto-optical recording method employs a magneto-optical recording medium having a first magnetic layer which exhibits low coercive force at room temper-ature and high Curie temperature and a second magnetic layer which is exchange-coupled to the first magnetic layer and which exhibits a higher coercive force and a lower Curie temperature as compared with those of the first magnetic layer.  A magnetic field modulated in accordance with information to be recorded is applied to the magneto-optical recording medium while irradiating it with a light beam of a constant intensity so as to record the information.  The recorded information is simultaneously confirmed by using a reflected light of this light beam.
Patent CA-2075227-A1 (CA)
Title: Surgical fastening apparatus with shipping interlock
Inventor: GEISTE ROBERT J
IPC: A61B17/072
Filed: 1992-08-04
Abstract: A surgical fastener applying apparatus is provided with a shipping interlock to prevent premature actuation of the apparatus by the jostling and vibrations which normally occur during shipment of the apparatus from the supplier to the user.   The shipping interlock includes a projection extending from the cam bar retainer and initially disposed through an elongated aperture in an interlock plate having an open distal end, The aperture has a narrow neck portion through which the projection can pass only with sufficient force applied to the cam bar retainer. The shipping interlock is adapted to permit passage of the projecting member when the force exceeds the normally expected forces from jostling of cargo to insure that actuation of the apparatus is intentional.
Patent CA-2075368-A1 (CA)
Title: Bi-directional feed through emitter-detector for optical fiber transmission lines
Inventor: HUNSPERGER ROBERT G
IPC: H01L31/12
Filed: 1991-02-07
Abstract: A unitary emitter-detector diode device (8) for direct optical coupling to optical transmission lines as two surface oriented optical fibers (20 and 21) on lateral surfaces of the device. The device has a p-n junction (15) formed between a heavily doped semiconducting layer (11) and a lightly doped semiconducting layer (12) and means for guiding and concentrating the recombination of carriers within the diode. The feed through geometry permits transmitting in either direction from the device as well as detecting.
Patent CA-2075676-A1 (CA)
Inventor: SVETLIK KENNETH N
IPC: B23D47/02
Filed: 1992-08-10
Abstract: A power table saw assembly is disclosed which includes arrangements for the storage of spare parts at convenient locations about the surface thereof and in position for ready access to the spare parts without negatively impacting the aesthetics of the product. Specifically, arrangements are provided for the storage of rip fences, miter guides and blade wrenches.
Patent CA-2075961-A1 (CA)
Inventor: KEEBLE PETER J
IPC: G01M11/00
Filed: 1991-02-06
Abstract: An optical test apparatus includes an optical time domain reflectometer (I) for launching light pulses into a test fibre (4). An optical amplifier (8) is provided in the light path between the optical time domain reflectometer (1) and the test fibre (4) for amplifying the the light pulses. An optical switch (13) is positioned in the light path between the amplifier (8) and the test fibre (4) for light reaching the test fibre between the light pulses launched by the OTDR (1). Timing means (16, 17) are provided for synchronising the operation of the optical switch (13) so as to open the switch as a light pulse reaches the switch and close the switch as a light pulse leaves the switch.
Patent CA-2076368-A1 (CA)
Title: Produit emballe et methode de rechauffage aux micro-ondes de produits alimentaires a faible teneur en eau
Inventor: KANAFANI HANNY
IPC: B65D81/34
Filed: 1991-02-07
Abstract: Emballage et procédé nouveaux: un produit alimentaire (20) ayant une teneur en humidité inférieure à 5 pour cent de son poids est placé dans un emballage scellé (10) avec un paquet scellé (22) contenant une solution aqueuse (24). Au moment de l'exposition au rayonnement des micro-ondes, la solution (21) se trouvant dans le paquet scellé (22) s'évapore, rompt le paquet et se disperse sous forme de vapeur dans tout l'emballage scellé (10), accroissant ainsi la température du produit alimentaire à faible teneur en humidité (20).