baber/WOPTO huggingface dataset:
Patent CA-2066478-C (CA)
Inventor: YAGI TAKAYUKI
IPC: G11B9/14
Filed: 1992-04-21
Granted: 1997-12-09
Abstract: A cantilever type probe comprises a cantilever-shaped displacement element and a tip which displacement element has a first electrode layer, a first piezoelectric material film and a second piezoelectric material film which films are laminated on respective sides of the first electrode layer, and a second electrode layer and a third electrode layer which layer are laminated on respective surfaces of the piezoelectric material films, and which tip is connected with a leader electrode located at a free end of the surface of the displacement element; wherein in the width direction of the cantilever both ends of the first electrode layer are more protruded out than each end of the second and third electrode layers does.  A scanning tunneling microscopy comprises the cantilever type probe, a driving means for displacing the probe, a stage for specimen so as to approach and locate the specimen to the tip, and a potential applying means for applying a bias voltage between the tip and the specimen.  An information processing apparatus further comprises a second potential applying means for applying a pulse and bias voltage between the tip and the recording medium; wherein an information is written on the recording medium and an information in the recording medium is read out by electric current flowing between the tip and the recording medium.
Patent CA-2068926-C (CA)
Title: Optical line monitor
Inventor: ANDERSON CLEO D
IPC: H04B10/00
Filed: 1992-05-19
Granted: 1997-08-26
Abstract: A relatively simple, low cost apparatus detects the presence and location of faults in an optical transmission system. It is particularly applicable to underwater optical transmissions systems. The optical transmission system contains at least one optical fiber pair extending between two terminals. Optical amplifier based repeaters are located at predetermined positions along fibers. Each repeater has a simple high-loss optical loopback circuit which is used to provide fault identification and location. The loopback circuit couples a portion of the optical signal travelling from a transmitting station through one of the fibers, attenuates that portion of the optical signal, and adds the attenuated signal to the optical signal in the other fiber for return to the transmitting station. Fault location is accomplished by launching a supervisory signal into the fiber from one of the terminals. At each repeater, the loopback circuit causes an attenuated version of the supervisory signal to return to the station from which it was launched, combined with any noise andsignal in the return lines. The supervisory signal is a pseudo-random word whichcan be recovered from the signal and noise in the return line via a correlation technique. The loopback circuit in the repeaters is composed of passive components which may comprise a pair of optical couplers each of which is adjacent one of the two transmission fibers. The optical couplers are connected by a fiber containing a preselected amount of attenuation. There is no need for any sensing circuitry in the repeater to activate the loopback in response to command signals in the supervisory signal. The production of the supervisory signal consequently is simplified because there is no need for command information to be a part of the supervisory signal.Degradation of signals through the optical transmission system is easily detected in a reasonable amount of time at the terminals of the system via the correlation technique. In addition, the correlation technique allows one to easily identify the location of the degradation on the transmission line.
Patent CA-2070181-C (CA)
Title: Holding device for paving blocks
Inventor: STROBL FREDERICK P JR
IPC: E01C19/52
Filed: 1990-12-11
Granted: 1993-06-08
Abstract: SUBSTITUTE                       REMPLACEMENT               SECTION is not Present Cette Section est Absente
Patent CA-2073105-C (CA)
Title: High speed bus transceiver with fault tolerant design for hot pluggable applications
Inventor: CHRISTOPHER ROBERT J
IPC: G06F13/40
Filed: 1992-07-03
Granted: 1997-01-21
Abstract: A  high-speed  data  transport  system  for  use  in computers, switches, microprocessors or the like includes a low  impedance  differential  bus  and  a  plurality  of transceivers connected to the bus.  Each of the transceivers is provided with a driver circuit which places data onto the bus and a receiver for accepting data from the bus.   The driver  includes  a  pseudo-differential  current  driving circuit arrangement which sinks current from only one side of the bus while the other side of the differential bus is undisturbed.    The   receiver   includes   a   differential comparator biased to a preferred output voltage level.
Patent CA-2075809-C (CA)
Title: Sprayable agricultural compositions
Inventor: CHAMBERLAIN PETER
IPC: A01N57/20
Filed: 1991-03-26
Granted: 2001-04-24
Abstract: The systemic activity of glyphosate and other sprayed foliar systemic compositions is improved by dissolving a substantially water soluble polymer in the solution that is to be sprayed. Generally the polymer is introduced as a reverse phase dispersion that is distributed in the aqueous composition before the herbicidal or othe r active ingredient is introduced.
Patent CA-2076984-C (CA)
Title: Process for manufacturing galvannealed steel sheets having excellent anti-powdering property
Inventor: SAGIYAMA MASARU
IPC: C23C2/28
Filed: 1991-12-27
Granted: 1999-05-18
Abstract: It is an object to provide a process for manufacturing galvannealed  steel  sheets  exhibiting excellent anti-powdering property when press formed, and uniform frictional properties in a coil.                 A steel  strip  is  galvanized in a bath having a low aluminum content after entering it at a high temperature as defined in relation to the aluminum content of the both, so that the formation of a ~ phase may be promoted.  Then, the strip is heated for alloying in a high-frequency   induction  heating  furnace  so  as  to  have  a temperature not exceeding 495°C when leaving the furnace to yield a plated  steel  strip having  a  coating  containing  a uniformly distributed ~ phase.  After such heat treatment and cooling, the strip can be plated with an iron or iron-alloy top coating having an iron content of at least  50% and a coating weight of at least 1 g/m2 to achieve an improved press formability.
Patent CA-2082343-C (CA)
Title: Size-in-store pleated shade and method and apparatus of sizing
Inventor: GRAVES DELBERT B
IPC: E06B9/26
Filed: 1992-11-06
Granted: 1999-10-05
Abstract: A pleated shade adapted to be custom sized at the point of purchase and apparatus and method for custom sizing pleated shades at the point of purchase is disclosed. The pleated shade may be downsized in four simplistic steps. The apparatus and method may be operated and performed by those persons with the skill level commonly found today in retail outlets.
Patent CA-2084570-C (CA)
Title: Manufacture of ferric sulphate compounds
Inventor: DERKA JAROSLAV R
IPC: C01G49/14
Filed: 1992-12-04
Granted: 1994-06-05
Abstract: A process is provided for the manufacture of ferric sulphate compounds from ferrous sulphate in a closed vessel containing a liquid phase and a vapour phase,  the process comprising the  oxidation  of Fe++ to Fe+++  under pressure utilizing commercial oxygen in the closed vessel using NOx as a catalyst where x is a number between 1 and 2 inclusive of 1 and 2 and wherein the process comprises the following reactions: 1)     (see fig. I)  , and 2)    (see fig. II) wherein n is any integer greater than or equal to two (2) and y is any integer which is equal to, or greater than zero (0) and less than 3n and wherein the oxidation of Fe++ is affected by spraying the liquid phase including a solution containing Fe++ introduced to the closed vessel,  through a reacting cloud comprising NO, NO2 and O2 enclosed in the vapour space of the closed vessel and wherein substantially only Ferric ions is present in the liquid phase in the closed vessel relative to the amounts of Ferric and Ferrous ions prior to the addition of FeSO4.
Patent CA-2088337-C (CA)
Title: Supervisory control and data acquisition system and method of operation
Inventor: GELLER HAIM
IPC: H04Q9/14
Filed: 1993-01-28
Granted: 1998-08-18
Abstract: This invention relates to a supervisory control and data acquisition (SCADA) system in which a central station (10) sends control information to, and acquires information from remote stations (11, 12) over a wire, radio or other link. Each station comprises a tabular memory (15 - 18) comprising storage locations in an 'x' direction for storing data relating to different elements of the second system and storage locations in a 'y' direction for storing data relating to different parameters of those elements. Transmitting means are provided for transmitting a message from one unit to the other unit, said message comprising an 'x' part, a 'y' part and a qualifier, for reading from and writing to storage locations in the tabular memory of the other unit depending on the result of a logical operation defined by the qualifier.
Patent CA-2091121-C (CA)
Inventor: HARSCH GERALD
IPC: G09F15/00
Filed: 1993-03-05
Granted: 1999-04-13
Abstract: A device for erecting walls and/or ceilings includes a support shaped-section evincing approximately cross-ssctionally T-shaped webs to which at least one beam for wall- and/or ceiling segments can be detachably affixed,  further a clamping lock detachable fastened inside the hollow beam and comprising a central retaining element  and two spring-steel, lateral retaining elements mounted symmetrically relative to said central retaining element.   The retaining elements engage adjacent and undercut channels formed by the webs   and are tightened against two adjacent webs of the support shaped-section by a rotationally actuated,  transverse tightening system crossing the three retaining elements through mutually flush clearances.  At the same time, the tightening system affixes the clamping lock inside the beam.    The two lateral, elastic retaining elements are joined in integral manner at their rear ends away from the support shaped-section and are mounted in a clamping-lock housing also receiving the central retaining element and the rotatable tightening system.          The  tightening  system  comprises  a central,  cylindrical  part crossing the three retaining elements  through mutually flush clearances and furthermore two external washers enclosing between them the two lateral retaining elements,  the inside surfaces of said washers each resting against the associated lateral retaining element.  Each of the inside surfaces of the two external washers comprise an actuation plane corresponding to one of the associated lateral retaining elements.
Patent CA-2092018-C (CA)
Title: Tightening screw
Inventor: NAKAMURA DAIJIRO
IPC: F16B31/02
Filed: 1993-03-19
Granted: 1998-11-24
Abstract: The tightening screw of the invention comprises a screw member forming female threads or male threads in the shaft core part, a flange ring fitted to the outer periphery of the screw member to contact with the object to be tightened, an operating ring for feeding a rotational force by fitting oppositely to the flange ring on the outer periphery of the screw member, and a torque transmitting member interspaced between the screw member and operating ring for transmitting the rotational force of the operating ring to the screw member, wherein the torque transmitting member comprises a reduction mechanism  for transmitting the rotational force of the operating ring to the screw member by reducing the speed, and a unidirectional torque limiter for cutting off transmission of torque in the tightening direction of the screw member to the object to be tightened at a specific load.
Patent CA-2097105-C (CA)
Title: Adjustable foot rest
Inventor: GRIMM THOMAS M
IPC: A47C16/02
Filed: 1993-05-27
Granted: 2004-10-12
Abstract: A foot rest (10) being positioned on a generally planar surface, includes a generally cylindrical sector support member (20) having an outer surface (21) and an inside surface (22). A generally cylindrical sector base member (30) has an outside surface (31) and inner surface (32). The inside surface (22) is positioned proximate the outside surface (31) and the members (20 and 30) are substantially concentric. A platform member (50) is operatively connected to the support member (20). The platform member (50) has pivotally mounted thereto a foot lock lever (40). A bolt (60) is used to lock the members (30 and 20) in a plurality of relative positions after relative rotational movement between the members (20 and 30), thereby defining a plurality of heights of the foot rest with respect to the planar surface.
Patent CA-2099981-C (CA)
Inventor: BONCA ARON
IPC: E21B15/00
Filed: 1992-11-06
Granted: 1998-02-03
Abstract: A drilling machine includes a boom assembly (34) which has two straight parallel longitudinal beams (50) of extruded steel, each of a section defining straight parallel inwardly and outwardly facing channels, a drilling head (24) in a carriage (52) and rollers (54) guiding said carriage for linear movement of said drilling head parallel to said inwardly facing channels, two straight parallel longitudinal boom extension members (80) and rollers (88, 90) guiding said boom extension members in said outwardly facing channels, and cross members (82, 84) linking said boom extension members to form a frame, plate braces (58, 60, 62, 64) linking said beams (50) in longitudinally spaced planes perpendicular to the axes of the beams, said plate braces being apertured to provide clearance for assembly and normal movement of said carriage (52), said drilling head (24), and drill tubes passing through said drilling head, and further longitudinal members (66) linking said plate braces to form a cradle of the boom assembly (34), said cradle having brackets (44) for pivotally supplying the boom assembly on a base (6, 38). The carriage (52) for the drilling head can be actuated by a hydraulic cylinder (32) having a single double ended piston rod (70), through chains (76) anchored to the cradle and to the carriage (52) and passing over sheaves (74) attached to opposite ends of the piston rod (70).
Patent CA-2101401-C (CA)
Inventor: STEINER KARL
IPC: D21F3/04
Filed: 1993-07-27
Granted: 2000-06-13
Abstract: The invention is directed to a paper machine for the production of a fiber web, including a headbox for forming the fiber web. Disposed adjacent the headbox is either a dewatering unit. e.g., a dewatering cylinder, a double wire former or a fourdrinier wire section. Also provided are at least one press unit for dewatering the fiber web, a tissue drying cylinder for finish drying the fiber web, a device for fiber web pickup from the tissue drying cylinder (Yankee cylinder), e.g., a creping doctor or a Clupak device, and a carrier belt for carrying the fiber web. At least one of the press units is configured as a shoe press for drying the fiber web, and includes a device for immediately separating the fiber web from a press felt after at least one press pass. The belt is preferably water impermeable, and an adhesion force between the water impermeable belt and the fiber web is greater than an adhesion force between the press felt and the fiber web.
Patent CA-2113075-C (CA)
Inventor: EVANS PATRICK A
IPC: H04L27/00
Filed: 1992-07-09
Granted: 2002-09-24
Abstract: An automatic detection and selection circuit (10) resident in a DCE is provided. The circuit (10) is coupled to the DCE in-terface connector and detects receipt by the DCE of V.35 and RS-232 transmit data signals, distinguishes between those signals, and selects circuitry for passing the data therethrough. The circuit comprises a switch (20) coupled to a first TX data terminal (pin 2 or P) of the DCE interface connector, first and second line receiving circuits (30, 50), a microprocessor (75), and relay (82). The first line receiving circuit (30) is coupled to a first pole of the switch (20) and to the second TX data terminal (pin S) of the DCE interface connector and provides indications as to whether or not an input signal is present at at least one of pins P and S. The second line receiving circuit (50) is coupled to the second pole of the switch (20) and provides indications as to whether or not a valid RS-232 transmit data signal is detected.
Patent CA-2114919-C (CA)
Inventor: STEVENS GEORGE RALPH
IPC: G09B23/04
Filed: 1994-02-03
Granted: 2005-09-27
Abstract: A geometry board having pegs arranged on its top face for the demonstration of planar geometric figures by stretching of elastic bands about the pegs. The disclosed board is of clear injection-molded plastic and has a square face with the pegs arranged in a grid on the face including along edges of the board. Pegs along the edges are in the shape of semi-cylinders and the arrangement is such that a pair of boards may be located side-by-side so that the semi-cylinders are paired up so that each pair of semi-cylinders forms a single cylinder. Pegs located at the corners of the board are in the shape of quarter-cylinders so that when four corner pegs are located at the center of four boards laid side-by-side the four quarter-cylinders form a singe cylinder. When four boards are assembled together a Cartesian coordinate system is obtain with x- and y-axes along adjacent edges of the boards and point (0,0) located at the intersection of all four boards. All four edges of the board have downwardly depending walls which are crenelated so as to be capable of accommodating edge pegs of an underlying board when boards are stacked one upon the other.      Further, pairs of opposite walls extend outwardly and upwardly so as to form an upwardly open trough, which trough receives one of the downwardly depending walls of another board when the boards are assembled in side-by-side relationship so as to hold the boards together.
Patent CA-2115499-C (CA)
Title: Apparatus for transferring paper napkins or similar products from the production machine to stacker means
Inventor: GHILARDI MAURO
IPC: B65H29/46
Filed: 1994-02-11
Granted: 1997-10-28
Abstract: The apparatus for transferring individual articles  (M)  in sheet form and placing them in stacks (P1, P2) of pre-determined numbers includes a conveyor (17, 23) which picks up the articles from a delivery system (11) by gripping them along their edges.          Along said conveyor at least two reciprocating expellers (27, 29) disposed in series remove said articles from the conveyor and lay them down onto a stacker means (31, 35; 33, 37).  Each expeller (27, 29)  operates with continuous, reciprocating motion at all times.  The expeller (27) which is closest to the delivery system (11)  may  selectively  be  moved,  in  the  direction  of  its reciprocating motion, so as to take a position (27X, 27Y) in the trajectory of the manufactured articles fed by said conveyor means, and, alternately, a position (27X', 27Y'), in which it is not in the article-feeding trajectory.
Patent CA-2115671-C (CA)
Inventor: ZINK JEFFREY I
IPC: C03C4/00
Filed: 1992-08-12
Granted: 2002-10-29
Abstract: An active biological material encapsulated in a glass is formed using a sol-gel process. A metal alkoxide is mixed with water (12) and exposed to ultrasonic energy at pH <= 2 to form a single phase solution which is then buffered to a pH between about 5 and 7 (17). The buffered solution is then mixed with the active biological material (20) and the resultant gel (21) is aged (22) and dried (24). The dried product is a transparent po-rous glass with substantially all of the added active biological material encapsulated therein (26), the biological material re-taining a high level of activity.
Patent CA-2115732-C (CA)
Inventor: KADIJA IGOR VELJKO
IPC: H01L23/50
Filed: 1994-02-15
Granted: 1997-12-09
Abstract: A packaged device with a lead frame, a lead frame and an article of manufacture comprising a base metal, a layer of nickel on the base metal, and a protective composite of metal layers on the nickel. The composite includes, in succession from the nickel layer, a layer of palladium or soft gold strike, a layer of palladium-nickel alloy, a layer of palladium and a layer of gold. The palladium or soft gold strike layer acts primarily as a bonding (an adhesive) layer between the Ni and Pd-Ni alloy layers and as a layer that enhances reduction in porosity of subsequent layers, Pd-Ni alloy layer acts as a trap for base metal ions, Pd layer acts as a trap for Ni ions from the Pd-Ni alloy layer, and the outer gold layer synergistically enhances the quality to the Pd layer. The various layers are in thickness sufficient to effectively accomplish each of their designated roles, depending on the processing and use conditions. Pd on soft Au strike layer may be 1-5 microinches thick, Pd-Ni alloy layer from 4 to 100 microinches, Pd layer from I to 100 micrinches and the outer gold layer from 1 to 100 microinches in thickness.
Patent CA-2116887-C (CA)
Inventor: THEURER JOSEF
IPC: B61D15/00
Filed: 1994-03-03
Granted: 2004-07-06
Abstract: A ballast grading machine (1) comprising a machine frame (4) supported on on-track undercarriages (5) is provided with a ballast plough (11) designed for vertical adjustment by means of drives (8), a vertically adjustable and rotatable sweeping brush (18), a suction arrangement (17) having a vacuum generator (16), and a driver's cab (19). The machine frame (4) consists of a front, first frame part (2), in the direction of travel, which has the ballast plough (11) and another, second frame part (3) joined to the said first frame part in an articulated manner and having the vacuum generator (16) and the sweeping brush (18). The suction arrangement (17) has a suction nozzle (20) projecting over the rear machine end (21), with respect to the direction of travel, connected by a flexible suction pipe (22) to the vacuum generator (16) and connected to a drive (40), the said suction nozzle being adjustable by means of a control unit (23) in the adjacent driver's cab (19).
Patent CA-2121669-C (CA)
Title: Plastic container with a completely sealed handle
Inventor: FOSS KEVIN A
IPC: B65D25/28
Filed: 1994-04-19
Granted: 2006-11-28
Abstract: A plastic container for holding liquids, such as syrup, which has a hollow handle completely sealed from the bottle's exterior and interior. The bottle results from blow molding an extruded thermoplastic parison into an unfinished bottle which has a channel running between the interior of the bottle and the hollow space defined by the handle. The air pressure to form the handle passes through this channel. Sealing this channel through the, application of ultrasonic heat closes it and provides a handle with an interior volume completely shut off from the exterior and from the inside of the bottle.
Patent CA-2125347-C (CA)
Inventor: BURKE RICHARD J
IPC: B66B1/18
Filed: 1994-06-07
Granted: 2004-10-26
Abstract: An apparatus for use during modernization of a group of elevators to maintain optimum service to a building includes an Interim Traffic Manager (ITM) system which evenly distributes hall call routing between old and new elevator controls.  During the time that an elevator to be re-equipped is out of service, the original not yet re-equipped elevators, as well as the already re-equipped elevators, respond as a single bank, one elevator car per call. The ITM system is connected between the hall call registering devices and each of old and new elevator controls. When a floor push button is pressed, the ITM system uses a routing algorithm to decide whether to send the call to the old or to the new elevator control based upon traffic loading. The ITM  system is an inexpensive, reusable unit which resides on the job site temporarily and, therefore, adds no additional costs to the modernization of an elevator group. Technical knowledge required for the installation of the ITM system is restricted to connecting wiring to the elevator controls and the hall call registering devices.