baber/WOPTO huggingface dataset:
Patent BG-48988-A1 (BG)
Title: Method for preparation of thermostability polyacrylonitrile fibres
Inventor: SARMADZHIEVA VELICHKA N
IPC: D01F6/16
Filed: 1989-09-29
Abstract: Fibers prepared by this method are suitable for the manufacture of carbon and graphite fibers. They are fine and thermostable and exhibit improved strength and reduced bulk resistance characteristics. According to this method, PAN fibers with the following composition:acrylonitrile:methylmetacrylate:vinylsulphonate = 93:6:1 are treated, after separating the avivaging and oiling agents, with a 5-25 % dispersion of acetylene black with particle size distribution between 5 and 20 microns in 1-15 % alcohol solution of polyvinyl butyral at temperatures 10-40 degrees C for a period of 1-30 seconds. The fibers are dried after pressing them out to a degree of 60-200 %. This is followed by oxidation and thermostabilization within the 150-240 degrees C range, while the upper limit is reached step-wise in the following order: the fibers are retained at 150 degrees C 1 hour, 180 degrees C 30 minutes, 210 degrees C 1 hour, and 240 degrees C 5 hours 30 minutes. Raising the temperature between each two steps requires 10 minutes to complete.
Patent BG-51824-A1 (BG)
Title: Method and device for the control of chemical_thermal treatment of parts in the plasma of glowing charge
Inventor: TOSHKOV VENTSESLAV TS
IPC: C23C14/38
Filed: 1992-06-29
Abstract: The method and device are both used for process control purposes in plants for carrying out ionic nitriding of parts and tools in machine building, as well as for control of glowing discharge-operated lasers. They enable improving the quality of treatment of parts and the control of arc discharges as a function of the variation of the glowing discharge potential. The method involves monitoring the component temperature and the voltage and current of the glowing discharge, as well as the arc discharge frequency by means of comparing the values of the latter with the preset values. The glowing discharge potential is also monitored and maintained continuously depending on the surface area, weight and temperature of the parts and the pressure and type of the used gas. The apparatus consists of correspondingly connected gauges, converters and controllers of the measured values and adjusting blocks for the preset values of the glowing discharge field potential as a function of the temperature and surface area of the processed parts.
Patent CA-2003213-A1 (CA)
Inventor: FUGMANN BURKHARD
IPC: C07C255/45
Filed: 1989-11-17
Abstract: The present invention relates to 1-cyanocyclopropyl- and 1-carboxamido-cyclopropyl-azolylmethylcarbinol derivatives, process for the preparation thereof and the use thereof in medicaments, especially for mycoses.
Patent CA-2003256-A1 (CA)
Title: Folding box made of cardboard for receiving tissues stacked one on top of the other
Inventor: MILDNER EBERHARD
IPC: A47K10/32
Filed: 1989-11-17
Abstract: ABSTRACT          Folding box made of cardboard for receiving tissues stacked one on top of the other In the case of a folding box made of cardboard, which is substantially cuboid and whose flat upper side has a prepared surface (18) detachable where appropriate along a closed separating line (25) (perforation) to expose a removal opening (11), it is recommended that a vapour-and fluid-impermeable inner body circumscribing a hollow space for receiving tissues is provided, which inner body has an opening overlapping with the described removal opening.  At least one of these openings is resealable by way of a tongue-shaped flap.  As inner body either a polyethylene coating of the folding box (10) or an inner bag (26) can serve, which inner bag must, however, be secured at least in the area of the removal opening (11) to the inner side of the folding box.
Patent CA-2005250-A1 (CA)
Title: A magnetic recording medium
Inventor: KOYAMA NOBORU
IPC: G11B5/716
Filed: 1989-12-12
Abstract: There is disclosed a magnetic recording medium comprising a support and provided thereon a plurality of layers. The layers comprise an outermost magnetic layer and a lower magnetic layer, wherein the outermost magnetic layer contains carbon black having an average primary particle size ranging from 30 m µ to 300 m µ, and the lower magnetic layer contains carbon black having an average primary particle size ranging from 5 m µ to 30 m µ.
Patent CA-2007393-A1 (CA)
Title: Thermoplastic resin composition
Inventor: FURUTA MOTONOBU
IPC: C08L71/12
Filed: 1990-01-09
Abstract: ABSTRACT OF THE DISCLOSURE     Disclosed are thermoplastic resin composition, comprising:     (a) a polyphenylene ether resin or a resin composition containing a polyphenylene ether, (b) (i) a modified propylene polymer obtainable by grafting a propylene polymer with a styrene-based monomer or a mixture of a styrene-based monomer and a monomer copolymerizable with the styrene-based monomer or (ii) a composition containing said modified propylene polymer and a propylene polymer, and (c) a rubbery substance, wherein the number mean particle size of the component (a) and (c) in the dispersion phase being from 0.01 to 20µm, the proprotion of the component (a) to the sum of the components (a) and(b) being 1 to 80 % by weight, that of the component (b) to the sum of the components (a) and (b) being 99 to 20 % by weight, and the proportion of the component (c) to the sum of the components (a) and (b) being 1 to 50 parts by weight per 100 parts by weight of (a) plus (b).     The thermoplastic resin composition has good moldability and yields molded articles having well-balanced physical properties.
Patent CA-2013343-A1 (CA)
Title: Apparatus and a method for automatically centering a video zoom and pan display
Inventor: CANFIELD BARTH A
IPC: H04N1/393
Filed: 1990-03-29
Abstract: RCA 84,282 Abstract of the Disclosure A video zoom and pan system is disclosed in which a viewer may specify a portion of a source image to be magnified by incrementally changing a center point - relative to the source image - for the magnified image, and a magnification factor. The viewer may pan around the source image, by changing the center point, to select the portion to be magnified. The system monitors the relative values of the center point coordinates and the magnification factor and adjusts the center point coordinates to prevent blanking intervals of the source image from being displayed as part of the magnified image. The invention is described in terms of three embodiments, two hardware embodiments, which use sub-pixel resolution in specifying the center point, and a combined hardware-software embodiment in which the center point is specified with multi-pixel resolution.
Patent CA-2013994-A1 (CA)
Inventor: FENTON FRANK
IPC: A63B53/12
Filed: 1990-04-05
Abstract: ABSTRACT OF THE DISCLOSURE              An improved steel golf shaft formed in a generally cylindrical configuration with a tip end and a butt end, the shaft having a central aperture extending axially the entire length thereof, three sets of steps continuously decreasing in diameter externally and internally from the butt end to the tip end, the steps of the central set being spaced from each other by a distance greater than the distance between the steps of the other sets. Also disclosed are the matched sets of clubs, woods and irons, employing such shafts as well as their methods of fabrication.
Patent CA-2014762-A1 (CA)
Title: Machine for cutting vegetable material
Inventor: JETZINGER FRANZ
IPC: A01D34/73
Filed: 1990-04-18
Abstract: ABSTRACT MACHINE FOR CUTTING VEGETABLE MATERIAL   4 machine for cutting vegetable material, such as a mowing or chopping machine, comprises at least one ro-tatable tool carrier and tools, which are pivotally mounted on said tool carrier by means of pins which are parallel to the axis of rotation of the tool carrier. In order to provide a machine which has a robust structure and facilitates the mount-ing and removal of the tools, each pin carries at least one tool and at opposite ends is movably mounted in two slots, which extend radially with respect to the axis of rotation of the tool carrier and are formed either in two mutually opposite disks, which constitute the tool carrier, or in luqs, which are secured to and radially protrude from the body of the tool carrier. Each slot has a radially outer portion, which is pro-vided on the outside with a cover for preventing an axial displacement of the associated pin.
Patent CA-2015977-A1 (CA)
Inventor: MADER WILLIAM G
IPC: B25G1/00
Filed: 1990-05-03
Abstract: Abstract Of The Disclosure A hand tool is provided with a handle having a substantially polygonally-shaped cross-section to prevent rolling of the tool.  The handle includes a substantially-hollow handle portion having an open forward end portion telescopically received at least partially within a nose piece, and the nose piece carries the shank of the hand tool.  An end cap is carried by the hollow handle portion, and the end cap has a rearward face provided with size indicia (and preferably color coded) for user recognition and selection.  A ribbed elastomeric sleeve is carried by the handle portion and is retained axially between a shoulder on the nose piece and a shoulder on the end cap.  In one embodiment, the end cap has a plurality of studs received and secured within complementary pockets formed in the handle portion; and in another embodiment, the end cap is formed integrally with the handle portion.
Patent CA-2016767-A1 (CA)
Title: Stand for exerting a forward or rearward drag on strips
Inventor: UMLAUF NORBERT
IPC: B21B39/02
Filed: 1990-05-15
Abstract: A stand for exerting a forward or rearward drag upon metal strips or sheets, in particular for a plurality of narrow strips which are to be wound up together with separate braking drags being applied to each strip, between two oppositely disposed, endlessly circulating conveyor chain systems driven by chain wheels, wherein a belt arranged between at least one chain system and the metal strip prevents particles of dirt such as forging scale, zinc and tin fines, etc. from entering the chain case.
Patent CA-2017225-A1 (CA)
Title: Electronic sensor trigger timer system
Inventor: FRANKOVITCH DOUGLAS J
IPC: G05B24/02
Filed: 1990-05-22
Abstract: ABSTRACT     An  Electronic  Sensor  Trigger Timer System that has  an  output trigger  safety  inhibit.  This  electronic  circuit  provides  a general  purpose  timer control system which is inexpensive  and dependable.  This system has low power environmental sensors  and is safe  to use.
Patent CA-2018373-A1 (CA)
Inventor: SPEISER ROBERT D
IPC: A61C5/02
Filed: 1990-06-06
Abstract: A process and apparatus for grinding the proper taper and all of the flutes with the correct number of spirals simultaneously in a single cycle of the grinding machine. This is accomplished by passing a rotating stock to produce the correct number of spirals under a grinding wheel that is dressed with three or four properly formed ribs depending on how many flutes are being manufactured. These ribs are spaced so as to exactly match the lead distance of the rotating stock during 120° or 90° of revolution, depending on whether a three or four fluted instrument is being manufactured. The height of each individual rib on the grinding wheel varies in relationship with each other to exactly match the correct taper being created by moving either the rotating stock portion of the machine or the grinding wheel portion of the machine so as to increase the distance therebetween.
Patent CA-2018765-A1 (CA)
IPC: D06C15/08
Filed: 1990-06-12
Abstract: ABSTRACT OF THE DISCLOSURE     In a hydraulically supported roll including a rotatable hollow cylinder and a statopmaru crosshead, transverse end seals are provided to seal the annular clearance space formed between the crosshead and the inner circumference of the hollow cylinder.  Each transverse end seal includes a slide ring having A chamber located on the first surface of the slide ring abutting a counter-ring.  The chamber provides hydraulic relief.  Radially outside of the chamber a narrow groove is provided which communicates with the low-pressure side of the slide ring via a channel.  The channel discharges hydraulic fluid flowing to the first surface of the slide ring as a result of the high pressure in the clearance space.
Patent CA-2018798-A1 (CA)
Title: Automatic apparatus for folding sheet elements
Inventor: BALLESTRAZZI ARIS
IPC: B65H45/14
Filed: 1990-06-12
Abstract: An automatic apparatus for folding sheet elements fed one after the other in succession, comprising a first unit for U-shaping the sheet elements to define two vertical side portions and a longitudinal central region, a pusher element for V-shaping the central region and a second unit for the final compaction of the V-shaped sheet elements. The apparatus also comprises a third unit for rotating the folded compacted sheet elements leaving the second unit through 90° and elements for separating the parallel side-by-side end edges of the thus folded and compacted sheet elements to enable further additional elements to be inserted between them. The speed of the various units is correlated to prevent any deterioration or slippage of the sheet elements.
Patent CA-2020816-A1 (CA)
IPC: B23H1/02
Filed: 1990-07-10
Abstract: A power supply circuit for discharge machining comprising a first switching means for supplying a d-c power voltage to a discharge gap between a discharge machining electrode and a workpiece, a first energy consumption circuit having a second switching means provided on the output side of the first switching means, and a second energy consumption circuit having a third switching means provided in the vicinity of the discharge gap in parallel therewith, in which the second switching means of the first energy consumption circuit and the third switching means of the second energy consumption circuit are caused to conduct after the first switching means is turned off.
Patent CA-2022405-A1 (CA)
Title: Bore seal
Inventor: LATHAM RAYMOND E
IPC: F16L23/08
Filed: 1990-07-31
Abstract: IMPROVED BORE SEAL                 ABSTRACT OF THE INVENTION      An annular bore seal for sealing between connected first and second coaxially aligned members, each of which is provided with an internal seating surface tapering inwardly from their adjoining ends.  The seal comprises: an inner cylindrical surface; annular end surfaces; peripheral surfaces adjacent to and tapering outwardly from the end surfaces; an outer alignment ring surface formed midway between the end surfaces; and annular relieved areas between the alignment rings and the sealing surfaces.  The taper angle of the sealing surfaces is internally variable and also varies from the taper angle of the seating surfaces.        J:\REFL\015\PA/01.INT
Patent CA-2023301-A1 (CA)
Title: Single cavity gas oven and grill unit
Inventor: GORTON DONALD J
IPC: A47J37/08
Filed: 1990-08-15
Abstract: ABSTRACT                 Single Cavity Gas Oven and Grill Unit A single cavity gas oven and grill unit provided with an oven burner (14) and an independent grill burner (15).  A flue (12) has a flap (16) pivotable between a closed position for the oven mode and an open position for the grilling mode.  The flap (16) is connected by a first linkage to a selector (13) and by d second linkage to a dual gas tap.  For the oven mode the selector (13) closes the flap which in turn prevents the gas tap operating the grill.  When the grill is on, the gas tap holds the flap open which in turn holds the selector in a position to prevent the oven door being closed.     Figure 2A.
Patent CA-2028299-A1 (CA)
Title: Catalyst regeneration process
Inventor: WILSON MICHAEL F
IPC: C10G49/02
Filed: 1990-10-23
Abstract: A process for regeneration of a deactivated hydroprocessing catalyst is provided. The process comprises exposing the catalyst to laser radiation in the presence of an oxidizing gas. The process may be used to regenerate supported or unsupported metal catalysts which have been fouled by coking.
Patent CA-2028397-A1 (CA)
Title: Compaction apparatus and process for compacting sand
Inventor: MUSSCHOOT ALBERT
IPC: B06B1/16
Filed: 1990-10-24
Abstract: "COMPACTION APPARATUS AND PROCESS FOR COMPACTING SAND"           Abstract of the Disclosure A compaction apparatus and process including a flask adapted to contain a pattern and sand.   The flask is resiliently supported  in  a  controlled  orientation  and vibrational forced are imparted to the flask including a horizontal  force component causing generally horizontal oscillating  movement  of  the  flask  and  alternative oppositely directed vertical force components maintaining the flask is a controlled orientation during the generally horizontal  oscillating movement thereof.   The vertical force  components  are  adapted  to  counteract  rotational inertia of the flask, pattern and sand.
Patent CA-2028421-A1 (CA)
IPC: F04D29/70
Filed: 1990-10-24
Abstract: A hinged and quick mount guard for an electric fan.          The fan guard includes a concave, dish-shaped rear guard member having an axial opening for the reception of a fan motor shaft, and a plurality of key holes for the reception of thru-bolts on the fan motor for securing the rear guard member to the fan motor.  The fan guard includes a concave, dish-shaped front guard member hingedly and releasably retained on the rear guard member.
Patent CA-2029854-A1 (CA)
Title: Padmount switchgear with combination live and dead front terminations
Inventor: BEARD LLOYD R
IPC: H02B7/00
Filed: 1990-11-13
Abstract: ABSTRACT OF THE DISCLOSURE: An  electrical  switchgear  apparatus  for  use  in selectively connecting a primary power line with a tap power line includes a housing in which a switch assembly is disposed.  The housing includes a source side wall and a tap side wall generally opposed to the source side wall, and conductors extend through each of the source and  tap  side  walls.    A  live  front  terminator  is electrically connected with the source side conductor and is adapted to be connected with the primary power line,  while  a dead  front  terminator  electrically connects with the second insulated conductor and is adapted to be connected with the tap power line.  A dead front enclosure surrounds the insulated conductors, the live front terminator, and the dead front terminator.
Patent CA-2031761-A1 (CA)
Title: Process for improving the qualities of coffee beans and coffee beans of improved qualities
Inventor: IZUMITANI MAREMITSU
IPC: G11B17/04
Filed: 1990-12-07
Abstract: Abstract Coffee feans improved in quality are obtained by treating the surfaces of green coffee beans with 0.01 to 3 % by weight, based on the total weight of the green coffee beans, of tannin.
Patent CA-2032639-A1 (CA)
Title: Tailgate wind deflector
Inventor: PETERSON ROBERT B
IPC: B60J1/20
Filed: 1990-12-19
Abstract: ABSTRACT   It is a known fact that, in the closed position, the tailgate of a moving pickup truck causes increased wind resistance and therefore decreased fuel economy of the vehicle. Current products designed to alleviate this wind resistance require that the tailgate be removed (ie.'flow through' type tailgate) or that products be installed that significantly alter the appearance of the vehicle (ie. caps or covers ). In this invention wind is deflected over the tailgate by means of a tailgate wind deflector which is concealed within the bed of the truck. The deflector is attached to the top of the tailgate and extends downward toward the cab where it is attached to the floor of the bed behind the wheel wells. This invention does not spoil the appearance of the vehicle and keeps the inherent safety features that the tailgate provides.
Patent CA-2034302-A1 (CA)
Inventor: BLOTTIERE YVES
IPC: B29C33/44
Filed: 1991-01-16
Abstract: According to the process, degradable expendable cores (11) are mixed (100) with a liquid coating composition (20) comprising an aqueous solvent (21), a water-soluble resin (22) and a anti-agglomerating additive (23), the coated cores are dried (200) in order to obtain free balls (12) with a sublayer film (2), these balls (12) are firstly mixed (300) with a liquid covering substance (30) comprising a synthetic basic product (31) and, possibly, an auxiliary product (32) and then with an anti-agglutinating adjuvant (33), the covered balls are dried (400) in order to obtain free pellets (13) with a covering layer (3) and these pellets are stoved (500) in order to harden (cure) their covering layer and to degrade the cores in order to obtain hollow spheres (10). 
<??>Application to the manufacture of intermediate products for the construction, especially, of energy absorbers. 
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Patent CA-2034303-A1 (CA)
Inventor: CARALT BATLLE JAIME
IPC: A61M5/32
Filed: 1991-01-16
Abstract: Disposable hypodermic syringe, comprising a tube (1) with its front part (2)narrowed and adapted to receive a hypodermic needle (3) and a hollow piston (4) capable of sliding through the inside of the tube; obturating devices laid across and held in operative position by the head of the needle (5); a spring (6), that tends to push the needle towards the inside of the tube; a closing device of the piston's cavity (11); and irreversible joining devices to fit other complementary joining devices placed at the head of the needle. The afore mentioned obturating devices are composed of a discoid part (7) made of a slightly flexible material, having a central countersinked hole (8) to receive the head of the needle that passes through it. This discoid part has, on its front side, appendages (10) adapted to operate on the retention devices as the discoid part is pushed forward by the front end of the piston, when it completes its operative run. The mentioned retention devices are constituted by many flexible tongues (12) which rise from the wall of the tube in a slanting angle, pointing forward and inward, and which are set so that they become fitted into a ring-shaped external groove (13) made round the outside of the needle's head, from where they are removed as they are bent by means of the pushing action of the appendages of the obturating discoid part previously mentioned. <IMAGE>
Patent CA-2035867-A1 (CA)
Title: Ink supply construction and printing method for drop-on-demand
Inventor: MORRIS BRIAN G
IPC: B41J2/175
Filed: 1990-08-22
Abstract: IMPROVED INK SUPPLY CONSTRUCTION AND PRINTING   METHOD FOR DROP-ON-DEMAND INK JET PRINTING                  Abstract A process and apparatus for drop-on-demand ink jet printing utilize the steps of:  selectively ejecting ink drops from drop ejection regions through related orifices; feeding ink through capillary feed passages to the drop ejection regions to replace ejected ink drops; and supplying ink to said capillary passages from an innately reticulate foam structure comprising a network of fine, mutually-connected, three-dimensionally branched filaments.
Patent CA-2036696-A1 (CA)
Title: Acid-containing a-b block copolymers as grinding aids in liquid electrostatic developer preparations
Inventor: EL-SAYED LYLA M
IPC: G03G9/12
Filed: 1991-02-20
Abstract: TITLE   ACID-CONTAINING A-B BLOCK COPOLYMERS AS GRINDING AIDS IN LIQUID ELECTROSTATIC DEVELOPER PREPARATION             ABSTRACT OF THE DISCLOSURE Process for the preparation of toner particles for electrostatic liquid developers comprising (A)   dispersing at ambient temperature colorant, A-B diblock polymer grinding aid as described, and a carrier liquid; (B)   adding to the dispersion a thermoplastic resin and dispersing at an elevated temperature to plasticize and liquify the resin; (C)   cooling the dispersion as described while grinding with particulate media, (D)   separating the dispersion of toner particles average by area particle size less than 10 µm, from the particulate media, and (E)   adding during or subsequent to step (B) at least one ionic or zwitterionic charge director compound.            Steps (A) and (B) can be combined by adding the thermoplastic resin to the other ingredients and dispersing at an elevated temperature.  The liquid developer can be prepared more quickly by the process than by other known processes.  The liquid developers are useful in copying, in making color proofs, etc.