baber/WOPTO huggingface dataset:
Patent CA-2023677-C (CA)
Title: Acceleration sensor and acceleration sensing system
Inventor: KUSHIDA TAKEO
IPC: G01P15/02
Filed: 1990-08-21
Granted: 1994-11-01
Abstract: An acceleration sensor includes a tubular bobbin only one end of which is fixed to a body whereas the other end is movable relative to the body axially of the bobbin, so that thermal expansion and shrinkage of the bobbin are not limited by the body.  Supported on the body are magnets for attracting a magnetic member, mounted within the bobbin, to a reference position.  A detection member is mounted around the bobbin so as to detect a displacement of the magnetic member from the reference position.  An acceleration sensing system incorporating such a sensor includes a processing circuit for processing an output of the detection member to output a detection signal representative of the direction and magnitude of the acceleration.  The processing circuit has a temperature compensation circuit for compensating for a variation of the output of the detection member due to a variation of the relative position between the magnet and the detection member in the direction of the axis of the bobbin, so as to keep the detection signal at a constant level when the acceleration is zero, the variation of the relative position being caused by a temperature variation.
Patent CA-2024108-C (CA)
Title: Interruption processing system in time division multiplex transmission system
Inventor: NAKAGAWA YUJI
IPC: H04L12/413
Filed: 1990-08-28
Granted: 1994-01-11
Abstract: ABSTRACT    An  interruption  processing  system  in  time  division multiplex  transmission  system  executes  at  a  central control  unit  a  group  access  for  accessing  in  batch respective groups of a plurality  of  terminal  units  in response to at least part of superior bits of a specific address for one of the terminal units which requests an interruption, causes inferior bits of the address returned from the terminal unit requesting the interruption to the central  unit,  and allows  the  central  control  unit  to specify the interruption requesting terminal unit on the basis of the superior and inferior bits of the address.          Extremely  rapid   specification   of   the   interruption requesting terminal unit is thereby made achievable, and the operational response time of the transmission system can be shortened to a remarkable extent.
Patent CA-2026657-C (CA)
Title: Tin (iv) compounds eventually chelated and usable as latent catalysts
Inventor: FRANCES JEAN-MARC
IPC: C08G18/24
Filed: 1990-10-01
Granted: 1997-02-25
Abstract: Tin(IV) compounds optionally chelated, tetracoordinated or pentacoordinated, of general formula: 
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<??>These compounds can be employed as latent catalysts for the preparation of polyurethane and for the crosslinking of organopolysiloxane composition after thermal decomposition within the reaction mixtures to be catalysed.
Patent CA-2027286-C (CA)
Inventor: SIMONET GENEVIEVE
IPC: G01T1/169
Filed: 1990-10-10
Granted: 2000-06-20
Abstract: Dispositif de localisation en temps réel de sources de rayonnement. Il comprend une chambre (4) à sténopé dont les parois forment un blindage vis-à-vis du rayonnement et, dans la chambre, en regard du sténopé (16), un écran (28) transparent dans le domaine lumineux et apte à convertir le rayonnement des sources en un rayonnement lumineux et des moyens (20) d'obturation de la chambre, aptes à empêcher la lumière de la zone d'atteindre l'écran tout en étant transparents au rayonnement des sources. Une caméra (30) est couplée à l'écran et fournit, sous forme de signaux électriques, une image des sources, grâce au rayonnement lumineux qu'elle reçoit de l'écran, et une image de la zone, grâce à la lumière qu'elle reçoit de cette zone à travers l'écran lorsque les moyens d'obturation sont ouverts, les images étant superposables et visibles grâce à des moyens (40) de traitement et de visualisation des signaux.
Patent CA-2029523-C (CA)
Inventor: SWETS MARK D
IPC: E05B65/467
Filed: 1990-11-08
Granted: 1999-06-29
Abstract: A pharmaceutical cart for retaining a plurality of dispensing bins on shelves is provided with cooperating horizontal and vertical locking bars to provide easy access to each of the individual bins and a simplified locking mechanism which prevents bins from being removed when in a locked position. The cart is equipped with a plurality of cassettes, each having a pair of spaced-apart parallel shelves, and a plurality of dispensing bins disposed side-by-side on the shelves and slidably removable from the front of the cart. The horizontally extending locking bar, which has an elongated cross section, extends frontally to the lower part of bins on the upper shelf and the upper part of bins on the lower shelf. The locking bar is pivotally attached to the walls of the cassette and may be rotated to a horizontal position for removal of individual ones of the bins. The vertical locking bar is hingedly attached to one side of the cart and in its locking position extends in front of the cassettes to prevent their removal and engages the horizontal locking bar of each of the cassettes to prevent their rotation. In this manner, operation of the vertical locking bar to its locked position locks each of the cassettes and each of the bins individually.
Patent CA-2030190-C (CA)
Title: Construction block
Inventor: DORAN WILLIAM ELMER
IPC: E04C1/00
Filed: 1990-11-16
Granted: 1998-02-03
Abstract: A construction block to be used with other similar  blocks in  order  to  construct  panels  of a building which  is formed of a pair of substantially planar  panels  located  in  juxtaposition  and  spaced apart forming a space between the panel.  Within the space  between  the  panel,  there  is  to  be  poured  a quantity of uncured wet aggregate and cement mixture which is then to harden into a solid mass.   Each of the   panels   is   to   be  constructed   of  expanded polystyrene beads.   The panels  are secured together through a metallic tie rod assembly which is located principally  in  the  space  between  the  panels.   The exterior  surface  of  each  of  the  panels  includes a plurality of vertical  grooves and within each groove is  to  be  located  a wooden  strip  which  is  to  be penetrated  by   conventional   fasteners  to thereby mountingly secure a desired structural member onto an exterior  surface of the construction block.   A wire interconnecting frame is to be located in the space between the panels and across the joint of a pair of connected blocks to provide lateral  support for the joint.
Patent CA-2035523-C (CA)
Title: Removable barrier
Inventor: WILSON JAMES BRETT STEPHEN
IPC: E01F15/00
Filed: 1991-03-04
Granted: 2002-05-28
Abstract: A removable barrier adapted to co-operate with a concrete median barrier of a roadway to form, in situ, a barrier between a vehicle travelling in one direction on the roadway and a vehicle travelling in another direction, wherein: the removable barrier is adapted for movement such that, when desirable, the vehicle travelling in the one direction can transgress the barrier and travel on the opposite side of the roadway, and further wherein the removable barrier comprises at least one shell conforming substantially to the outer shape of the concrete median barrier and is adapted for sliding movement relative to the concrete median barrier.
Patent CA-2041320-C (CA)
Title: Coupling device for an electrical cable coupling and a mechanical middle buffer coupling
Inventor: LINDNER HARALD
IPC: B61G5/06
Filed: 1991-04-26
Granted: 1998-06-02
Abstract: The reliable initiation and chronological sequence for coupling or uncoupling a mechanical middle buffer coupling and an electrical cable coupling arranged on the buffer coupling longitudinally displaceable in the direction of the coupling axis with a common rotary drive is effected with minimum control effort.  A coupling device has a drivable shaft at right angles to the coupling axis.  An actuating arm is nonrotatably fastened to the drivable shaft, and extends into a guide rail of the cable coupling and thus forms the direct drive member of the cable coupling.  The shaft is guided rotatably and is longitudinally displaceable in a lower section of a hollow shaft, which consists of a lower, a middle, and an upper hollow shaft section.  The shaft extends beyond the middle hollow shaft section in the upward direction into the zone of the upper hollow shaft section where the shaft is guided longitudinally displaceably but nonrotatably.
Patent CA-2041554-C (CA)
Inventor: YOSHIDA HIROSHI
IPC: D03J1/02
Filed: 1991-04-30
Granted: 1997-07-08
Abstract: A method of producing a colored narrow tape woven or knitted of a weft and a group of warp yarns, comprising: continuously moving the group of warp yarns along a longitudinal path through a dying station; coloring the group of warp yarns with a first dye at the dying station to a predetermined length to provide a first colored region; providing a noncolored region following to a trailing end of the first colored region; coloring the group of warp yarns with a second dye at the dying station to a predetermined length to provide a second colored region following to the noncolored region; and supplying the resulting warp yarns to a subsequent weaving or knitting station.
Patent CA-2044412-C (CA)
Title: Device for applying a tensional force between vertebrae of the human vertebral column
Inventor: METZ-STAVENHAGEN PETER
IPC: A61B17/60
Filed: 1991-06-12
Granted: 1998-08-04
Abstract: A device for applying a tensional force between two vertebrae of the human vertebral column, comprising at least two retaining members adapted to be brought into engagement with  associated vertebrae,  said  members  having a throughgoing opening for the accommodation of a threaded rod, and pairs of nuts adapted to be threaded onto said threaded rod in order to fix said retaining members in a desired position on said threaded rod, characterized in that  said retaining members are configured as clamping members (10) having two legs (14, 16) which are bendable relative to each other in the plane extending through said threaded rod (26) to embrace a transverse process (22) of a vertebra.
Patent CA-2044437-C (CA)
Title: Digitally controlled ringer signal generation
Inventor: OPREA DAN R F
IPC: H04M19/04
Filed: 1991-06-12
Granted: 1995-04-04
Abstract: A method and apparatus of producing an alarm or ringing signal comprising providing a first pulse signal having a predetermined pulse width to define an alarm or ringing signal amplitude, and modulating the pulse signal with a second pulse signal having a pulse rate at least an order lower than the frequency of the first pulse signal to define the alarm or ringing signal frequency, averaging the modulated first pulse signal in a loudspeaker voice coil and reproducing the result in the loudspeaker to provide the alarm or ringing signal.
Patent CA-2047082-C (CA)
Title: Pulp press vat providing enhanced bottom access
Inventor: VOTE A SEAN
IPC: B30B9/20
Filed: 1991-07-15
Granted: 1995-01-17
Abstract: A press for dewatering papermaking pulp has a pair of adjacent perforated cylindrical rolls which define a continuously converging nip and a vat shell adjacent the rolls which provides enhanced bottom access to the press rolls by means of a door which is hinged to swing downward and away from the bottom of the press vat.  A hoist mechanism raises and lowers the unhinged side of the door as required, and retractable keys latch the door in a sealing position against the vat.  A shock absorber mechanism is provided to limit the speed at which the unhinged side of the door can fall when being lowered.
Patent CA-2048346-C (CA)
Title: Electric arc resistant lightweight fabrics
Inventor: GREEN JAMES RALPH
IPC: D03D15/00
Filed: 1991-08-02
Granted: 2001-05-01
Abstract: Woven fabrics wherein the warp yarns contain specified amounts of heat resistant fibers blended with cotton fiber provide protection against radiation given off by electric arcs.
Patent CA-2051503-C (CA)
Title: Cash register keyboard
Inventor: SAITO SHIN
IPC: G07G1/00
Filed: 1991-09-16
Granted: 1998-09-29
Abstract: A keyboard for use in association with a computerized cash register system is described.  The keyboard comprises a main body portion with at least one array of apertures through the upper surface thereof dimensioned to receive a plurality of keystems.          A plurality of keystems extends upwardly from beneath the upper surface of the main body, each keystem including a stop member to prevent it from sliding up through and out its aperture.          Resilient means are aligned with each keystem to permit downward actuation thereof and effect subsequent upward return of same.          Circuit means are situated beneath the plurality of keystems and have  arranged thereon  a plurality  of  switches  actuatable by downward motion of the keystems.   Electrical contact means are associated with the resilient means and the circuit means, for contacting  and actuating  the  switches.    Software  means  are included, programmable by a user for assigning desired functions to the switches.   A plurality of keycaps are attachable to the ends  of  the  keystems  remote  from  the  resilient  means  and protruding from the apertures on the upper surface of the main body, whereby said keycaps may be configured in any desired array by a user of the keyboard by assignment of desired functions to the appropriate switches of the circuit means.
Patent CA-2053245-C (CA)
Title: Well control apparatus
Inventor: EDWARDS JEFFREY CHARLES
IPC: E21B34/06
Filed: 1990-04-20
Granted: 1998-12-29
Abstract: Following completion of the testing procedure applied to a newly drilled oil well using a mechanism of the annulus pressure-responsive type, it is necessary safely to "shut down" the test tools, and then to remove the test string from the packer assembly and pull it to the surface. It is desirable for the high pressure reference gas in the tool to be vented before the string reaches the well head. It is also an advantage if there be incorporated within the test string some means of isolating the upper portion of the tubing thereof, and of subsequently providing a route for communication between this tubing and the annulus, so that tubing-contained well liquid above the test string can then be circulated out of the tubing before it is raised to the surface. The invention provides apparatus for the venting and isolation procedures just described, this apparatus permitting those operations to be carried out as an automatic sequence, following the application of a single actuating pressure pulse to the annulus. For the venting of the reference gas, the invention suggests pressure release apparatus having two spaced pistons (7, 11) located at opposite ends of a chamber (10) filled with that gas and blocking both a gas vent (17) to annulus and a hydraulic liquid passageway (22: to further up the test string), the pistons being held together by a shear pin (13) until the application of a predetermined pressure (higher than the gas reference pressure) at the outside ends of those pistons causes the pin to shear, allowing sequential movement of the two pistons towards each other, with the effect of firstly opening the gas vent to annulus, and secondly opening the passageway (22) to a chamber (24) of hydraulic liquid. The hydraulic liquid pressure within this passageway then causes actuation of ball valve apparatus for isolating the upper section of tubing. This apparatus is in the form of a ball-valve-driving piston (39) blocking another passageway (40) for hydraulic liquid, which piston is: forced to move under the influence of the pressure, breaking a restraining shear pin (44) as it does so, and closing the ball valve while opening this other hydraulic liquid passageway, permitting transfer of hydraulic pressure to apparatus for venting the contents of the tubing to annulus. Finally, this venting apparatus contains a longitudinally-movable sleeve member (54) the position of which determines whether or not flow is permitted, via vent ports (55, 56), from the test string tubing to the annulus.
Patent CA-2053974-C (CA)
Title: Blend of rubber latices containing a hydrogenated rubber latex
Inventor: PARKER DANE KENTON
IPC: C08L23/22
Filed: 1991-10-23
Granted: 2003-10-21
Abstract: The present invention relates to a blend of rubber latices comprising, based on dry weight, (A) from about 80 to about 50 phr of a latex selected from the group consisting of polybutadiene latex, natural rubber or polyisoprene latex, styrene-butadiene copolymer latex, acrylonitrile-butadiene copolymer latex, butadiene-isoprene copolymer latex, isoprene-isobutylene copolymer latex, styrene-isoprene-butadiene copolymer latex and mixtures thereof; and (B) from about 20 to about 50 phr of a hydrogenated rubber latex that is prepared in accordance with a process comprising: (l) combining an unsaturated polymer in latex form, which is derived from 5 to 100 percent by weight of a conjugated diene monomer and 95 to 0 percent by weight of an ethylenically unsaturated monomer, with (a) an oxidant selected from the group consisting of oxygen, air and hydroperoxides; (b) a reducing agent selected from hydrazine and hydrates thereof; and (c) a metal ion activator; (2) heating the mixture to a temperature from 0°C to the reflux temperature of the reaction mixture.
Patent CA-2054661-C (CA)
Inventor: UCHIDA HIROSHI
IPC: H04B10/60
Filed: 1991-10-31
Granted: 2002-01-01
Abstract: A portable electronic apparatus including a casing having a connecting surface adapted to be connected to a connecting surface of an external apparatus; a control unit accommodated in the casing; a transmitting terminal provided on the connecting surface of the casing for transmitting data as an optical signal generated by the control unit; and a receiving terminal provided on the connecting surface of the casing for receiving data as an optical signal generated by the external apparatus. The transmitting terminal and the receiving terminal are positioned in symmetrical relationship to each other with respect to a center of the connecting surface of the casing. Accordingly, in carrying out data transfer by optical space communication between two portable electronic apparatuses of the same kind, the transmitting terminal of one of the portable electronic apparatuses can be easily aligned to the receiving terminal of the other portable electronic apparatus.
Patent CA-2056292-C (CA)
Title: Sound volume controlling apparatus
Inventor: KAWAUCHI YOSHIHIRO
IPC: H03G1/00
Filed: 1991-11-27
Granted: 1995-11-07
Abstract: The sound volume controlling apparatus comprises UP and DOWN keys  (42,  43)  depressed manually;  a time period detecting circuit  (39h,  39d) for detecting time period  from  when  the  duration  of  UP  or  DOWN  key depression reaches a predetermined value (e.g. 0.5 sec) to  when  the  continuous  key  depression  ends; a sound volume  value  deciding  circuit  (39e,  39f,  37a)  for changing the sound volume value during the time duration detected by the time period detecting circuit; and sound volume changing circuit (37b, 45) for changing the sound volume in accordance with the value decided by the sound volume value deciding circuit.        Since the sound volume is changed only after the key is kept depressed for a predetermined time period (e.g.  0.5  sec),  it  is  possible  to prevent  the  sound volume from being changed erroneously due to a short time touch to the keys.
Patent CA-2057165-C (CA)
Title: Method of improvement of the yield of electrostatic separation of salts
Inventor: FRICKE GUENTER
IPC: B03C7/00
Filed: 1991-12-06
Granted: 1996-07-09
Abstract: During the electrostatic separation of crude potash salts, rock salt of a defined grain size is admixed in order to increase the surface charge density and to improve the product yield.
Patent CA-2061749-C (CA)
Inventor: FRANICH ROBERT
IPC: B27K3/15
Filed: 1992-02-24
Granted: 2001-10-09
Abstract: The invention comprises a method of densifying lignacellulosic material such as wood. The wood is impregnated with a maltodextri solution under vacuum and/or pressure and the maltodextrin is thin cross linked to substantially insolubilise the maltodextrin. A wood-polymer composite is formed. Suitable cross linking agents include compounds having at least one hydroxyl group. Maltodextrins having a dextrose equivalent in the range 15 to 30 are preferred. The resulting composite material has improved appearance, hardness, impact resistance, strength and water repellency.
Patent CA-2063205-C (CA)
Title: Key telephone system
Inventor: KASHIWAGI KOICHIRO
IPC: H04M19/02
Filed: 1992-03-19
Granted: 1996-01-16
Abstract: A plurality of trunk interface blocks are provided to receive a plurality of telephone lines. In each trunk interface block, a ringing signal detection circuit detects an incoming ringing signal on the corresponding telephone line, and a code insertion circuit insets in a PCM signal, coded data indicative of whether or not an individual ringing signal exists on the telephone line in response to the output of the ringing signal detection circuit. The PCM signal is transferred through a PCM time division switch and an extension interface circuit to a destination extension set.          In the destination extension set, the code discrimination circuit extracts coded data from the PCM signal and controls the on-off circuit to drive the speaker in synchronization with the individual ringing signals.
Patent CA-2069665-C (CA)
Title: Apparatus for detecting short-circuit for use in bi-polar d.c. transmission system
Inventor: NAKAMURA NAOMI
IPC: H02J3/36
Filed: 1992-05-27
Granted: 1997-03-18
Abstract: There  is  disclosed  an  apparatus  for  detecting  a short-circuit of a bi-polar d.c. transmission system in which one end of a neutral line is ground and the other end thereof is not ground.  This short-circuit detecting apparatus is adapted to detect a short-circuit between d.c.  transmission  lines  on  conditions  that  a  current flowing  in  the  neutral  line  is  below a predetermined value, that a ground current at the ground point of the neutral line is below a predetermined value, and that a difference  between  bi-polar  current  command  values  is above a predetermined value.
Patent CA-2072988-C (CA)
Title: Straightening device for a car body
Inventor: VENALAINEN OLAVI
IPC: B21D1/12
Filed: 1991-08-26
Granted: 1998-06-09
Abstract: The invention relates to a straightening device (10) for a car body comprising a straightening table (11) and therein sill fasteners (13) or the like, from which the vehicle can be fixed to the straightening table (11), whereby the straightening table can be lifted by means of a lifting device (12) into the desired repair position.  The joint between the straightening unit (14) and the straightening table (11) is realized by leading a beam (17, 18) connected to the straightening unit (14) inside the beam (11a) of the straightening table (11).  The equipment comprises in connection with the straightening unit (14) such a beam structure (17,18) that at least the second beam section (17) can be moved relative to the first beam section (18), whereby said sections comprise a surface diagonal relative to the center axis (X) of the beam structure.  The equipment comprises a power unit (19), by means of which an upper surface (17a) of the movable beam (17) is brought into contact with an inner surface (11a1) of the beam structure (11a) of the straightening table (11), whereby the upper surface (17a) of the beam structure (17) aligns the straightening unit (14) in the same horizontal direction as the straightening table (11).
Patent CA-2075466-C (CA)
Title: Method of producing silicon and an electric-arc low-shaft furnace and briquette for carrying out the process
Inventor: LASK GERT-WILHELM
IPC: C01B33/025
Filed: 1992-08-06
Granted: 1996-10-29
Abstract: A carbide former is introduced into briquettes in the production of silicon in an electric-arc low-shaft furnace to improve the trapping of silicon oxide rising in the furnace and increase the silicon yield.  The carbide former can be calcium, magnesium or aluminum, preferably in the form of the silicate and most advantageous is magnesium silicate.