baber/WOPTO huggingface dataset:
Patent CA-2041980-A1 (CA)
Title: Continuously operating open-cut mining device with a cylindrical breaking tool
Inventor: GRATHOFF HARTMUT
IPC: B65G63/04
Filed: 1991-05-07
Abstract: ABSTRACT OF THE DISCLOSURE A self-propelled, endless transport track mounted, continuous mining machine for use in open-cast pits, having a drum-shaped cutting head with cutting teeth arranged around the periphery of the drum. The excavated material is discharged via a feed chute (12) onto a discharge conveyor (2, 3, 4). The latter is a continuous conveyor. The first section (2) of the discharge conveyor runs axially within the cutting drum (1). Outside the cutting drum, the discharge conveyor merges into a vertical section (3), which extends up to the height of the upper edge of the chassis (5) of the mining machine. The last section (4) of the discharge conveyor runs in a gentle incline above the frame (5) of the disccharge conveyor and ends at a discharge point (6) where the excavated material is transferred to a bridge conveyor (8) installed in a connecting bridge (7). The discharge conveyor (2, 3, 4) consists of a pan conveyor utilizing a special conveyor belt made of rubber or the like material and having transverse partitions (9) which are approximately the same height as the corrugated side walls (10) with which the transverse partitions form a plurality of compartments. The section of the pan conveyor which is loaded with excavated material, namely the section between the Feed chute and the transfer point (6), is engaged with a covering belt (11 ) which encloses the compartments of the pan conveyor to keep the conveyed material in the pockets of the pan conveyor.
Patent CA-2042624-A1 (CA)
Title: Method and system for detecting underground mine fires
Inventor: GRACE RICHARD
IPC: G08B17/117
Filed: 1991-05-15
Abstract: ABSTRACT OF THE DISCLOSURE           A   CO   based,   Diesel   discriminating,  fire detection   system   and   method   is   disclosed  which significantly reduces the threshold of CO needed to detect a fire in  a mine  that  also  contains  CO  from  Diesel equipment  without  a corresponding increase in the number of false alarms.  The system measures both the CO  and NO levels at many points throughout the mine and calculates a CO/NO ratio for each of  these  locations.   A  long  term average  concentration  (4 hours) and a short term average concentration (1 hour) for both CO and NO are  continually updated  to  reflect  the  changing  dynamics  of the mine environment.  Using the CO/NO ratio, the detection  system can  effectively  differentiate  between  CO produced by a Diesel and CO produced from a fire  and  can  activate  an alarm  when  the  CO level resulting from a fire exceeds a predetermined threshold level.
Patent CA-2042641-A1 (CA)
Title: Slab electrophoresis system with improved sample wells and cooling mechanism
Inventor: CHU DANIEL Y
IPC: G01N27/26
Filed: 1991-05-15
Abstract: SLAB ELECTROPHORESIS SYSTEM WITH IMPROVED            SAMPLE WELLS AND COOLING MECHANISM                ABSTRACT OF THE DISCLOSURE A gel enclosure and buffer tank for vertical slab gel electrophoresis are disclosed.  The gel enclosure is formed from two flat plates, one of which contains angled troughs extending off to one side to serve as extensions of the sample wells, thereby increasing the volumetric capacity of each sample well, and improving the ease of loading it with sample.  The buffer tank is constructed in such a manner as to hold one flat plate of the gel enclosure in contact with a flat heat transfer wall of the buffer tank, with cooling applied to the outside of the wall by thermoelectric means.  Buffer solution below the gel enclosure is also cooled by the cooling wall, and bubbles generated at an electrode, also positioned below the gel enclosure, agitate the cooled buffer solution, extending the cooling effect over the entire surface of the other flat plate of the gel enclosure.
Patent CA-2043265-A1 (CA)
Title: Heat transfer cement containment channel
Inventor: HEIZER GLENWOOD F
IPC: F28F7/00
Filed: 1991-05-24
Abstract: A heat transfer cement containment channel is provided for attachment to a pipe.  The containment channel includes a channel member having a first end and a second end, and is dimensioned to fit on a pipe and provide a space between the channel member and the pipe for heat transfer cement.   A collar member  is integrally attached to the first end of the channel member and extends away from the channel member.  The collar is dimensioned to fit snugly over the second end of an adjacent channel member in a longitudinal arrangement of a series of containment channels on a pipe.
Patent CA-2043287-A1 (CA)
Title: Plate display apparatus
Inventor: MILEY JERRY N
IPC: A47G1/16
Filed: 1991-06-03
Abstract: ABSTRACT    The present invention provides apparatus for supporting plates, dishes and the like.  In a preferred embodiment, the apparatus comprises an elongated rectangular frame from which a plurality of support members project forwardly.  A pair of support members is provided for each plate to be displayed.  These support members are arranged such that the plates are supported along their outer peripheries in at least  two  substantially parallel,  generally  horizontal planes  and  in  at  least  two,  substantially  parallel, generally upright vertical planes.   The support members include plate retention means disposed at the free end thereof.
Patent CA-2044569-A1 (CA)
Inventor: CHURCHILL JONATHAN D
IPC: G05D7/06
Filed: 1991-06-13
Abstract: A throttle controller for an internal combustion engine employs a stepper motor to move the throttle valve and provides a controller to permit the use of the stepper motor.  The stepper motor requires no return spring or position sensor and hence offer weight and cost advantages.          The throttle position is deduced by means of an up-down counter tracking movement of the stepper motor during throttle control.  The controller includes an integration means to accommodate the unknown starting throttle position.  A fuel cutoff solenoid is activated in the event of over-speed or power loss.  An engine speed signal for the controller is produced by a variable reluctance sensor providing a signal to a slope detector circuit to eliminate the influence of external magnetic fields.
Patent CA-2046322-A1 (CA)
Title: Valve
Inventor: HORVEI KNUT V
IPC: F16K3/08
Filed: 1990-02-07
Abstract: Valve apparatus, in particular a rotatable valve comprising an upper part (10) and a lower part (6) which are demountably attached to each other. The valve's lower part (6) is mainly U-formed with sealing surfaces (17, 18) arranged on the outwardly facing side faces, which sealing surfaces, in the case of closed valve bear against at least one valve seat on the valve housing's inlet and/or outlet end, and upper part's (10) external face is designed for totally or partly supporting bearing against lower part's (6) internal face and comprising a passage (34) designed to accommodate equipment, for example controlling or metering instruments in the upper part (10) can, in the case of closed valve, be lifted out of the valve housing (1) for maintenance.
Patent CA-2049985-A1 (CA)
Inventor: CATALLO FRANK
IPC: D06C21/00
Filed: 1991-03-12
Abstract: L'invention concerne un appareil amélioré permettant d'effectuer le rétrécissement compressif des matières fibreuses (12). L'appareil utilise un système de surfaces mobiles (18, 15) allant à des vitesses différentes, associé à un système d'obturation (22) espacé de ladite surface mobile (15) ou des surfaces mobiles (18, 15) pour former ensemble une chambre de bourrage (21) destinée à comprimer la matière fibreuse (12). Une lame d'impact améliorée (50) est prévue pour faciliter la compression de la matière fibreuse (12), ladite lame (50) comprenant entre autres un appareil (110) permettant de maintenir la lame (50) de la manière la plus droite possible pour qu'elle soit totalement efficace.
Patent CA-2051021-A1 (CA)
Title: Method and circuit arrangement for producing a qpsk signal on which a carrier signal is superposed
Inventor: ALBERTY MICHAEL
IPC: H04L27/20
Filed: 1991-09-10
Abstract: ABSTRACT OF THE DISCLOSURE A method of generating a composite signal in the form of a QPSK signal on which an additional carrier signal is superposed, wherein a carrier signal is conducted through two series connected, switchable phase shifters.  One of the phase shifters is controlled by one of two data signals.          Both data signals are logically linked with one another by a logic circuit, and the resulting linkage signal used to control the other phase shifter.  The phase states into which each phase shifter can be switched are selected in such a way and the linkage signal is formed from the data signals so that, with the available values of the data signals, the carrier signal passing through the phase shifters is brought into the phase positions that should exist with the addition-al carrier signal superposed.  In an advantageous arrange-ment, each phase shifter can be switched between a 0° phase state and one other phase state.  The data signals are preferably linked with one another hit-by-bit in an EXOR circuit and its output used to control one phase shifter so that if the linkage signal is a logic "0", the phase shifter it controls takes on the 0° phase state and if the linkage signal is a logic "1", the phase shifter takes on the other phase state.  If the data signal controlling the other phase shifter is a logic "0", this other phase shifter takes on the 0° phase state and if the data signal is a logic "1", the other phase shifter takes on the other phase state.
Patent CA-2053029-A1 (CA)
Title: Method and device for recording charges for copies made on a copying machine
Inventor: SIMONS PETER J J M
IPC: G03G21/04
Filed: 1991-10-08
Abstract: A device for selectively recording charges for copies made on a copying machine by way of two or more accounting means connected at the same time via the device to the copying machine, comprising means for coupling the device to the copying machine, a plurality of connection points each one of which is connectable separately to a different account means and control means which selectively activates one of the accounting means for recording of the charges and the method of accomplishing the recording of such charges.
Patent CA-2055974-A1 (CA)
Title: Chlorinated polyvinyl chloride/polycarbonate blend
Inventor: LAWSON DENNIS L
IPC: C08L51/06
Filed: 1991-11-21
Abstract: ABSTRACT              A chlorinated polyvinyl chloride/polycarbonate blend is prepared utilizing a conventional vinyl impact modifier  such  as  methyl  methacrylate-butadiene-styrene (MBS) copolymer as a compatibilizing agent.  The blend has good thermomechanical properties such as good dimensional stability under heat, good impact resistance, and improved processability.    The  chlorinated  polyvinyl  chloride, polycarbonate, and impact modifier are simultaneously mixed or, alternatively, a preblend of the polycarbonate and the conventional impact modifier is made to which the CPVC is subsequently added and blended.
Patent CA-2056190-A1 (CA)
Title: Articulated helicopter rotor with an improved blade-to-hub connection
Inventor: BYRNES FRANCIS E
IPC: B64C27/33
Filed: 1991-11-26
Abstract: Abstract of the Disclosure An articulated helicopter rotor with an improved blade-to-hub connection.     An articulated helicopter rotor wherein the blade-to-hub connection consists of a spherical elastomeric bearing connected to the hub and a composite yoke connected thereto in series and consisting of a plurality of unidirectional high strength fibers bonded together to form a continuous strap which passes through a central opening in the elastomeric bearing and is pin-wrap connected to the hub at a single station and to the blade at two spaced stations so is to produce a construction which is light in weight, easy to manufacture, ballistically tolerant, redundant, and readily visually inspectable for structural integrity.
Patent CA-2057286-A1 (CA)
Title: Oil collecting and dispensing apparatus
Inventor: MAXWELL BOYCE A
IPC: F16N31/00
Filed: 1991-12-09
Abstract: ABSTRACT OF THE DISCLOSURE      Apparatus for quick, clean and convenient changing of the oil ox other fluids of a vehicle of particular use to the "do-it-yourselfer. " The apparatus is sized so as to fit under most vehicles when resting on one side thereof and is provided with a pivoting extensible arm having a funnel mounted on the end thereof for collecting the fluid that is mounted in a recess in one side thereof so as not to catch on the undercarriage of the vehicle when slid under or out from under the vehicle.  Once positioned, the funnel is raised into close approximation with the oil drain plug, oil filter neck, or other location from which fluid is to be collected, and the fluid is drained into the funnel  and  directed  down  through  the  arm  into  the container.    The  container  is  then  stood upright  for dispensing the stored oil or other fluid through a valve, which is also recessed in the container, into a larger recycling or other collection facility.
Patent CA-2059761-A1 (CA)
Inventor: OBERG SVEN E
IPC: B29D35/08
Filed: 1992-01-21
Abstract: A method of manufacture of footwear and the footwear comprising the steps of providing a last with an upper thereon, providing a mold insert on the bottom of the last, providing a mold having a mold cavity fox a tread sole, disposing the last and upper against the mold with the mold insert disposed within the mold cavity, forming a sole in the mold cavity having a depression therein in the shape of the mold insert, providing an insole with a first portion in the shape of the depression and a second portion substantially in the shape of the sole and securing the first portion of the insole in the depression. The tread sole and insole are formed of materials preferably having different physical properties. The tread sole can include one of tongues and grooves and the insole would then have the other of tongues and grooves, said tongues and grooves mating with each other.      The step of providing an insole can include removing the mold insert from the last and mold cavity, disposing the last spaced from the tread sole and then forming the insole in the cavity formed by the removal of the weight relief and the spacing of the last from the tread sole.
Patent CA-2060806-A1 (CA)
IPC: F16L25/02
Filed: 1992-02-03
Abstract: ELECTRICALLY INSOLATED PIPELINE JOINT       FOR FLUID OR GAS PIPELINES            ABSTRACT:      An electrically insulated pipeline joint for use in fluid or gas pipelines is disclosed.   Such a joint is used to electrically insulate one section of a pipeline from an adjoining section pipeline.  The joint is further designed to preclude physical failure therein and also to preclude leaks from forming therein, in the case of mechanical failure.
Patent CA-2062467-A1 (CA)
Title: Abrasive disc assembly for rotary disc sander
Inventor: CATALFAMO GIUSEPPE
IPC: B24D9/08
Filed: 1992-03-06
Abstract: ABRASIVE DISC ASSEMBLY FOR ROTARY DISC SANDER                   A B S T R A C T    An abrasive disc assembly for a rotary disc sander, comprising a disc support pad fixedly mounted on the end of a driving spindle pad on the surface of which a replaceable,  flexible abrasive disc may be fastened, has the circular pad provided with an inner concentric recess and a plurality of angularly spaced apart grooves which extend from the inner recess to the outer circumference of the pad. The abrasive disc has at least an aperture which projectively superimposes onto the recess of the supporting pad and is compressively retained on the surface of the pad by means of a spider-shaped retaining element which may be fastened to the spindle's end,  through a central washer piece from which radially extending arms project, fitting said grooves of the pad and capable of warping and com-pressing the abrasive disc into the grooves of the pad. The consumable discs may be produced more cheaply with-out any self-adherent backing layer and dust control is promoted by the radially extending channels defined on the rotary abrading surface.
Patent CA-2063741-A1 (CA)
Title: Distal atherectomy catheter
Inventor: SUMMERS DAVID P
IPC: A61B17/32
Filed: 1990-07-23
Abstract: This disclosure sets out a catheter (10) for bodily insertion.  The catheter tip supports an elongate hollow housing (14) with a window (82) for occlusive material cutting, a cutter head (86) on the interior rotates, driven by a drive wire (46) in the hollow catheter tube. In addition, the cutter head (86) reciprocates or oscillates to cut on its back edge, the edge trimming material entering through the window (82). The window and optional slots admit the unwanted material and enable trimming for a vacuum removal through the catheter tube. The window (82) is urged into contact by a pair of flexed wires (98), the wires moving the housing into operative contact.
Patent CA-2065528-A1 (CA)
Title: Automatic locking device for a weather protection cover of a chair lift or the door of a cable car lift
Inventor: MAYER HELMUTH
IPC: B61B12/02
Filed: 1992-04-07
Abstract: A chair for a chair lift comprising a suspension bar (9) and a pivotable weather protection cover (5) carried thereby. Movably mounted to the suspension bar (9) above the weather protection cover (5) is an actuating device (11) which is movable by a control device (13, 14) associated with the station and the movement of which is transmitted by way of a transmission means (8a, 8b) to the pivotal movement of the weather protection cover (5).To lock the closed weather protection cover, it is provided that a locking device (16) is arranged on the actuating lever (11) above the weather protection cover (5) and that the locking device (16)  for locking  the weather protection  cover  (5)  in  the  closed position locks the actuating lever (11) on the suspension bar (9) or a member (17) connected thereto.
Patent CA-2066987-A1 (CA)
Title: Electric connector to affix and connect motherboard and daughter card
Inventor: BEON JACKY
IPC: H01R12/72
Filed: 1992-04-24
Abstract: ELECTRIC CONNECTOR TO AFFIX AND CONNECT   MOTHERBOARD AND DAUGHTER CARD            ABSTRACT OF THE DISCLOSURE The object of the invention is an electrical connector to affix and connect a daughter card (22) to a motherboard (1). For that purpose it comprises a body (3) subtending a feedthrough duct (5) to receive a daughter card part (10) fitted with contact strips (12), the body being designed to be inserted into a motherboard cutout (2), electrical contacts (6) being mounted on the walls of the feedthrough duct to cooperate with daughter card strips and being electrically connected to pins (7', 8) connecting to conducting strips (9) of the motherboard.
Patent CA-2067033-A1 (CA)
Title: Automation of test instruments
Inventor: MATHEWS MICHAEL
IPC: G01N11/16
Filed: 1992-04-24
Abstract: AUTOMATION OF TEST INSTRUMENTS                                  ABSTRACT          A method of operating an instrument for testing the physical propertiesof materials in which each of a series of samples of the material to be tested is placed in a test position located between dies, the dies are closed to mould the material to a test shape, a test is carried out on the sample in the mould and after completion of the test the dies are opened and the sample is removed from the test position is characterised in that a film of material which is substantially non-adhesive to the dies  under  the  conditions  of  the  test  is  provided  to  cover  those surfaces of the sample which, in the absence of the film, would be in contact with the dies,  each sample in turn  is conveyed to the test position,  and mechanical means are provided for removing each sample from the test position after the completion of the test.   Apparatus suitable for use in the method of the invention is also provided.
Patent CA-2068895-A1 (CA)
Title: Conditioning of oil sands and bitumen separation therefrom
Inventor: SPARKS BRYAN D
IPC: C10G1/00
Filed: 1991-10-30
Abstract: ABSTRACT OF THE DISCLOSURE     The invention relates to a process for the conditioning of oil sands to increase the amount of high fines reject to permit separation of the oil sands into a high fines fraction comprising 5 to 25 % of the feed and a low fines fraction comprising 95 to 75 % of the feed.  Having separated the feed in this manner, a hybrid Hot Water Extraction/Anhydrous Extraction process may be advantageously employed to extract bitumen from the low fines and high fines fractions, respectively.
Patent CA-2068988-A1 (CA)
Inventor: GOHRIG GERHARD
IPC: B25B7/00
Filed: 1990-11-17
Abstract: A pair of braiding pincers (10) with two jaws (14, 16) and two grips (28, 30) which are pivotably interconnected at a joint (18) is characterized in that, with the jaws (14, 16) closed, the part of the left-hand grip (30) near the joint (18) forms a right-hand grip (24) at least over part of its length while the part of the right-hand grip (28) forms a left-hand grip (22) at least over part of its length, whereby the maximum distance (d) between these two lengths (22, 24) is not greater than the maximum distance (d) between the jaws (14, 16).
Patent CA-2069730-A1 (CA)
Title: Device to increase performance of a swung sporting implement
Inventor: VELKE WILLI H
IPC: A63B60/00
Filed: 1992-05-29
Abstract: TITLE: A DEVICE TO INCREASE PERFORMANCE OF   A SWUNG SPORTING IMPLEMENT                         INVENTOR: W. H. VELKE              ABSTRACT          A  device to  increase  swing  speed of  a  swung sporting implement,   such as a baseball bat or a hockey stick,   by reducing base drag behind such implement, with  drag  being reduced  by  including in the surface  of such implement  a plurality  of surface discontinuities in such a pattern  as to  change fluid flow behaviour across the surface  of such sporting implement to a more favourable flow condition.
Patent CA-2069823-A1 (CA)
Title: Device for the feeding of printing material and its further processing in sheet-fed rotary printing presses
Inventor: GREIVE MARTIN
IPC: B41F33/14
Filed: 1992-05-28
Abstract: A B S T R A C T           The invention relates to a device for the feeding of printing material and its further processing in sheet-fed rotary printing presses, said device comprising the following features. A feed table (4) is movable in relation to a paper store (26).  An optical detection means (3) is situated behind a roller pair (1) in the paper store (26) for detecting mis-fed sheets.  A transport roller (10), driven through an intermediate gear wheel (11), is mounted in the feed table (4).  At least two remover rollers (17), mounted on a shaft (27), dip into recesses (21, 22) in an upper guide plate (5) and in a lower guide plate (6) during the removal of mis-fed sheets.  The remover rollers (17) cooperate with the transport roller (10) during the removal of the mis-fed sheets.           (Fig. 1)
Patent CA-2072667-A1 (CA)
Title: Temperature-resistant black pigment, a process for its production and its use
Inventor: KUSKE PETER
IPC: C01G49/00
Filed: 1992-06-29
Abstract: A TEMPERATURE-RESISTANT BLACK PIGMENT, A PROCESS FOR ITS PRODUCTION AND ITS USE                     ABSTRACT OF THE DISCLOSURE            A temperature-resistant blank pigment which is a mixed oxide of manganese and iron with the structure of hematite and having a manganese content of 3 to 35% by weight, and with absolute color values in colorimetric testing in paint systems, expressed in CIELAB units, in the lightened form (Blend of 10 parts titaniumdioxide and 1 part of black pigment) of 60 to 70 for L*, -0.5 to 1.9 for a* and -4 to -6.5 for b* useful for coloring autoclave-cured building materials and for pigmenting heat-resistant paint systems is obtained by preparing a precursor material of manganese and iron oxides or hydroxides, which contains the phase with the structure of spinel and calcining that precursor material in an oxidizing atmosphere at 500 to 1,000°C.            Le A 28 211-Foreign countries