baber/WOPTO huggingface dataset:
Patent CA-2109482-A1 (CA)
Title: Process for producing alanylglutamine
Inventor: INOUE KUNIMI
IPC: C07C237/22
Filed: 1993-10-28
Abstract: Disclosed is a process for producing alanylglutamine, which comprises reacting an N-(2-substituted)-propionylglutamine compound represented by the formula (I):   (see formula I) where X represents halogen, alkylsulfonyloxy, or substituted or unsubstituted arylsulfonyloxy, with ammonia at a temperature of 60°C or below.      In accordance with the present invention, highly purified alanylglutamine can be produced in a high yield, without racemization.
Patent CA-2112545-A1 (CA)
Inventor: WALSH PATRICK N
IPC: C23C4/06
Filed: 1993-12-29
Abstract: ARTICLE WITH WEAR RESISTANT COATING AND METHOD                 Abstract of the Invention An article having a wear and corrosion resistant coating is formed by blending a powder formulation having a metal carbide-metal binder component and a nickel base boron containing alloy component, depositing the blend on the body of the article by a method capable of producing a coating with an as-deposited porosity of less than 5% and a boron content of 1.3 to 3.0 wt % of the whole coating, and heat-treating the coated article to achieve in the coating a microhardness above 900 kg/mm2 HV.3 and the elimination of all interconnected porosity.  The coating will sustain oil quenching without cracking.
Patent CA-2113066-A1 (CA)
Title: Electrode for earthworm collecting device
Inventor: PODSIADLY PAUL
IPC: A01K67/033
Filed: 1994-01-07
Abstract: An   electrode   for   a   hand-held   earthworm collecting device.  The electrode has a first straight portion for insertion into the soil and a handle portion connected to the top of the straight portion and for connection to a source of electric pulses.   The handle loops outwardly from the first portion, then downwardly, then inwardly to abut the first portion, and then extends laterally  outwardly  normal  to  the  first  portion  and terminates  in  a  plug.    The  plug  is  connected by  a stretchable wire to the hand-held device, which supplies electric pulses.
Patent CA-2115050-A1 (CA)
Title: Synthetic trnas
Inventor: HARDESTY BOYD
IPC: C07H21/04
Filed: 1992-08-21
Abstract: Synthetic tRNAs are produced from tRNA Cys(AAA), tRNA Ser(AAA), tRNA c Ala(AAA), and tRNA i Ala(AAA) genes. Polyuridylic acid-dependent syntheses of polypeptides were carried out in vitro on E. coli ribosomes using the synthetic tRNAs.
Patent CA-2116251-A1 (CA)
Inventor: GHENEA SERBAN
IPC: G10D3/06
Filed: 1994-02-23
Abstract: A stringed musical instrument (12) that can be played either  in a  fretted or a  fretless mode  comprises  an interconnected fret assembly (38) comprising frets (24) and a longitudinal fret interconnecting member (40)  that is attached to, and movable with, the frets.  A movable linear cam  structure  (46)  has  two  cams  at  each  fret,  one positioned on each side of the fret interconnecting member, and includes rack teeth (52) which mesh with a pinion (62) driven by a lever  (66) for causing linear movement of the linear cam structure.   The interconnecting member is an elongated slat (40) which is positioned in a slot  (50) between the cams.   The linear-movable cam includes an elongated guide protrusion (56) and an interior cavity (30) of the fingerboard,  in which the cam rides, defines an elongated  guide  slot  (58)  for  receiving  the  guide protrusion and thereby limiting lateral movement of the linear cam.   The linear cam structure and the interior cavity have tapered lateral sides.
Patent CA-2116732-A1 (CA)
Inventor: KAIRI MATTI
IPC: B07C5/34
Filed: 1994-03-01
Abstract: A method of enhancing the strength and of reducing strength variations of multi-layer wood, plywood or similar by measuring the density of the veneer sheets used in the production and by grading the veneer sheets accordingly. The density of the veneer sheets is measured in a manner known per se by using a high-frequency electromagnetic resonator.      To build up layers of multi-layer wood, plywood or similar, veneer sheets confirmed to have a higher density are graded as surface sheets and/or local density variations of central sheets are reduced by mixing veneer sheets with various densities.
Patent CA-2117986-A1 (CA)
Inventor: TAKAHASHI EIJI
IPC: G06T19/00
Filed: 1994-10-12
Abstract: A request for inputting of, for example, a character string of a retrieval item is issued to an operator by an input request section of an item processing section via a pattern/character editing section and a display operating section and a request for specification of a to-be-retrieved pattern is issued to the operator by a specification request section of a pattern specifying section. A retrieval processing section retrieves a data base fvr the retrieval item obtained in the item processing section and the to-be-retrieved pattern obtained in the pattern specifying section. The retrieval result of the data base by the retrieval processing section is converted into a character string corresponding to data derived as the retrieval result by a character creation section of a writing processing section, arranged in position corresponding to an input retrieval item in the drawing by a character arranging section of the writing processing section, and written into the drawing data.
Patent CA-2118890-A1 (CA)
Inventor: CHARBONNEAU YVON
IPC: G09F11/08
Filed: 1994-03-11
Abstract: La présente invention consiste en un module d'affichage électronique utilisant une bande imprimée pour l'affichage de chiffres, de caractères ou d'images. Le défilement contrôlé de bas-en-haut et de haut-en-bas, permet l'affichage de chiffres, de caractères ou d'images imprimées et dont le positionnement est assuré par un circuit de détection optique. Cette technologie permet un affichage grand format par réflection et par translucidité.
Patent CA-2119807-A1 (CA)
Inventor: RANTANEN RAUNO
IPC: D21H23/34
Filed: 1994-03-24
Abstract: A method and apparatus for limiting the width of a coating and/or preventing damage to roll ends while coating or surface sizing paper or an equivalent web material in a coating device in which a coating agent, such as size, coating paste or equivalent, is introduced into the coating device to an application zone defined by a coating member, a moving base, lateral seals, and a front wall and spread onto the moving base by the coating member which is loaded against the moving base. Liquid jets are sprayed into the areas outside the coating width, substantially over the width defined by the lateral seals and the roll ends, either onto the moving base before the coating member in the running direction of the moving base or directly into the nip formed by the moving base and the coating member. The liquid jets lubricate the nip and dilute the coating agent that has entered into the areas outside the coating width. The excess amount of the sprayed liquid is collected and removed to prevent entry of the excess amount of the sprayed liquid into a recirculation system the coating agent and prevent the coating agent from being diluted.
Patent CA-2120060-A1 (CA)
Title: Emulsification of asphalt and modified asphalt with primary emulsifier polymers comprised of acrylic acid type monomers
Inventor: PORTFOLIO DONALD C
IPC: C08L33/02
Filed: 1994-03-28
Abstract: Emulsions of asphaltic materials, such as asphalt or asphalt blends with polymers, in water using copolymeric anionic emulsifiers are disclosed. The copolymeric anionic emulsifiers use ionizable carboxyl groups as their hydrophilic moiety. The emulsions using these copolymeric emulsifiers are stable, allowing them to be used anywhere where asphalt or modified asphalt is used as a sealant, coating, or binder. These emulsions can also be mixed with polymer latices, pigments, fibers, fillers and other additives to impart particular properties specific to the type of application, i.e., pigmented flexible coating compositions, non-sag sealer and sealant compositions, water borne adhesive compositions, etc., for use in construction and industrial fields. These asphalt emulsions have better freeze-thaw stability, higher solids contents, and wider applicability to polymer modified asphalt compositions than prior art emulsions.
Patent CA-2121496-A1 (CA)
Title: Method for controlled release of an elevator hoist brake and apparatus therefor
Inventor: CASAS ALAN V
IPC: B25B5/08
Filed: 1992-10-16
Abstract: A method and apparatus (20) therefor is provided to enable a single operator to effect a controlled release of an elevator hoist brake (32) thus allowing "drifting" of the elevator car to the nearest floor and quick safe rescue of trapped passengers during an electrical outage. An observer having the elevator car in view may communicate (e.g. by hand held transceiver) desired car movements to the operator who is typically located in the machine room atop the elevator shaft. This method improves the overall response time for all emergency elevator rescues by reducing time consuming and dangerous hatch location rescues to mostly simple rescues, especially in blackouts and earthquakes.
Patent CA-2121546-A1 (CA)
Inventor: DOPPSTADT WERNER
IPC: B02C13/282
Filed: 1994-04-18
Abstract: The comminuting machine includes a housing provided with a rotary impact mechanism. A conveyor conveys infed material to the rotary impact mechanism which cooperates with an impact plate in disintegrating the infed material. A comminuting cover plate covering a discharge opening of the comminuting machine follows the impact plate in the rotational direction and is arranged laterally of the rotary impact mechanism. The comminuting cover plate has an arcuate shape and is provided with parallel teeth rows protruding opposite to the rotational direction and transversely offset from each other. A comminuting grate is arranged below the rotary impact mechanism and forms an arcuate plate with throughpass openings. The comminuting grate cooperates with the rotary impact mechanism in forcing the infed material through the throughpass openings with further comminution. Adjusting devices are associated with the comminuting cover plate and the comminuting grate for adjusting the same relative to the rotary impact mechanism.
Patent CA-2122221-A1 (CA)
Title: Infra-red radiant tube heater
Inventor: ROZZI MARIO
IPC: F24D5/08
Filed: 1994-04-26
Abstract: Abstract A  gas  radiant  tube  heater  and  method  of operating the heater.  The heater has a housing and a radiant tube mounted within the housing.   The heater further has a modular control box mounted within the housing in which serviceable parts can be easily removed as a unit and replaced.  The housing and control box are sealed against the elements  for outdoor as well as indoor use.    The  control  box  is  divided  into  two chambers,  with the  inlet  air  flowing  from a  first chamber into a second chamber.   The first chamber is subjected to  a vacuum pressure,  in which the heat sensitive equipment is mounted, and the second chamber is  subjected to  a positive pressure,  in which the combustible gas and air mix prior to combustion.  The heater further has a pressure switch to shut off the gas supply if the air flow through the heater is blocked, and a flame sensor to shut off the gas supply if the ignition element fails to ignite the air/gas mixture.
Patent CA-2123173-A1 (CA)
Inventor: VOLL CHRISTOPHER J
IPC: F24F11/76
Filed: 1994-05-09
Abstract: An air circulation system is used to control the tem-perature in an area defined by a series of zones.  The sy-stem has a hot deck and a cold deck, and a series of ducts each extending from the downstream side of the decks to a respective zone.  A damper in each duct controls the amount of air entering the duct from each deck.  The zone having the highest heat load and the zone having the lowest heat load are empirically determined, and a sensor is installed in each of those zones to monitor temperature.  A tempera-ture deviation in those zones from a temperature initially set into the system causes the duct dampers to those zones to adjust, and may also cause heat to be supplied or with-drawn from the decks.  Each of the remaining zones normally has a temperature between those of the highest and lowest heat load zones.  A thermostat and a backup sensor are in-stalled in each of the remaining zones; a thermostat con-trols only the duct damper leading to the respective zone, and a backup sensor controls only heat supply or withdrawal from the decks.  This system has a significant savings in energy cost over other multiple-zone systems, in which each zone has a thermostat controlling both the setting of the respective duct damper as well as the supply or withdrawal of heat from the decks.
Patent CA-2124303-A1 (CA)
Inventor: HANANO M NIHAD
IPC: B61G5/10
Filed: 1994-05-25
Abstract: An electric coupler engages a mechanical coupler disposed on a passenger transit vehicle to enable necessary electrical connections required to operate such vehicle to be achieved.  Such electric coupler includes an interface device engaging both such mechanical coupler and such electric coupler for positioning the electric coupler on such mechanical coupler.   A first securing device engages each of such interface device and such mechanical coupler for securing them together.   A second securing device engages each of such interface device and such electric coupler for securing them together.  A pair of bearing shaft members and a pair of shaft support members connected to a respective one of such pair of bearing shaft members are provided.  A third securing device engages each of such interface device and such pair of shaft support members for securing them together.  A pair of electric coupler box members and a pair of linear bearings are provided.  A respective one of such pair of linear bearings is secured to a portion of a respective one of such electric coupler box members and engage a respective one of such bearing shaft members.   A thrust plate member is disposed on such linear bearing electric coupler assembly.  A pair of coil springs are connected to support such thrust plate for longitudinal movement.  A connection device engages such electric coupler box members and such coil springs for connecting them together.   A thrust mechanism is connected to the thrust plate for applying a thrust force thereto during coupling and uncoupling operations.
Patent CA-2126925-A1 (CA)
Title: Setback Control for HVAC System
Inventor: PIERRET PETER G
IPC: F24F11/00
Filed: 1994-06-28
Abstract: A setback control for an HVAC system is selectable by depressing a switch on a control panel associated with a programmed microprocessor.  The programmed microprocessor is operative to thereafter change the setpoint temperature by a predefined amount each hour until a predetermined number of hours have passed.  The set point temperature is thereafter held for a further hourly count before being returned to the starting setpoint temperature.  The directional change in setpoint temperature is a function of whether the HVAC system is in a heating or cooling mode of operation.
Patent CA-2129267-A1 (CA)
Title: Child restraint seat
Inventor: HOLDAMPF CARL J
IPC: B60N2/30
Filed: 1994-08-01
Abstract: The present invention is directed to a "fold-out" or integral child restraint seat having a mechanism interconnecting a headrest member and a seat member for causing coordinated movement therebetween. When it is desired to deploy the integral child seat, the headrest member is automatically moved to its raised operative position in coordination with movement of the seat member to its lowered operative position. Conversely, when it is desired to stow the integral child seat, the headrest member is automatically moved to its lowered storage position in coordination with movement of the seat member to its raised storage position. As a result, movement of the integral child seat between its stowed and deployed positions can be accomplished in one operation for substantially enhancing the convenience afforded to the person attempting such movement. The integral child seat also provides an improved latching mechanism that is operable for positively retaining the integral child seat in both of its stowed and deployed positions.
Patent CA-2129786-A1 (CA)
Title: Detachable hanging plant support
Inventor: COBB DAVID E
IPC: A47G7/04
Filed: 1994-08-09
Abstract: An apparatus for suspending a hanging plant that is housed in a container is described as including three or more flexible supports each of which has a first end and a second end. The first end of each flexible support is adapted for hanging from an overhead supporting hook. The second end of each flexible support is attached together to provide an enclosure for retaining and for supporting the container. At least one of the flexible supports includes a fastener that is disposed intermediate to the first end and the second end. The fastener includes a slideable sleeve. The slideable sleeve can be displaced along the longitudinal axis of the flexible support to expose a coupling which can then be separated. Once the coupling is separated the flexible support also separates into two halves and the container can be readily removed from or inserted into the apparatus through the opening provided by the separated flexible support.   When the slideable sleeve is displaced so as to cover the coupling, the coupling is thereby prevented from decoupling.
Patent CA-2134408-A1 (CA)
Title: Anti-Eavesdropping Device
Inventor: KURY CHARLES A
IPC: H04R5/02
Filed: 1994-10-26
Abstract: An anti-eavesdropping device is provided which consists of a first structure for containing sound waves produced by a first person.  This first structure includes a sound attenuating breathing device.  This first structure includes a first mechanism for converting sound waves into electric waves, which are then transferred to a second structure which is for forming an acoustic seal about the ears of a second person.  This second structure includes a second mechanism for converting the electric waves back to the sound waves.  Because the device enables two or more people to engage in conversation, in such a way that no sound can escape into the environment to be detected in any way, by the human ear or by any kind of eavesdropping device utilizing direct or indirect interception of sound waves (such as microphones or vibration - detection equipment utilizing laser beams), the device can be used to produce confidential communications in the presence of eavesdroppers and eavesdropping equipment.
Patent CA-2134605-A1 (CA)
Inventor: SURKO WALTER E JR
IPC: E05B65/10
Filed: 1994-10-28
Abstract: This exit device has a press bar and an elongated deadbolt adapted to be mounted horizontally adjacent the free end of the door and a pivoted retractor blade inward of the door.  The blade is pivoted by the press bar and engages with its nose a projecting surface on the deadbolt and retracts the deadbolt.  The blade also has a keeper contact surface which, as the door closes, is contacted by the keeper and the blade is pivoted inward to retract the deadbolt.  The retractor blade also serves as an anti-friction bearing having a peripheral portion which rolls against the deadbolt and counters against the inward force on the deadbolt opposing to the opening force on the door.
Patent CA-2138381-A1 (CA)
Title: Hydrometallurgical copper extraction process
Inventor: JONES DAVID L
IPC: C22B3/06
Filed: 1993-06-18
Abstract: A process for the extraction of copper from a sulphide copper ore or concentrate comprises the steps of subjecting the ore or concentrate to agitation leaching at an elevated temperature and pressure to obtain a resulting acidic leach liquor containing dissolved copper and reducing the acidity of the resulting acidic leach liquor by effecting percolation leaching of a bed of low-grade copper ore or granular rock with the acidic leach liquor. In one embodiment, the agitation leaching is carried out in the presence of oxygen and water to obtain an acidic leach liquor containing sulphate and dissolved copper. In another embodiment, the agitation leaching comprises a first leaching step at an elevated temperature and pressure in the presence of oxygen and an acidic chloride solution as lixiviant and a second leaching step at atmospheric pressure with an acidic sulphate solution. In a preferred embodiment, the bed of low-grade copper ore or granular rock is in the form of a heap and the percolation leaching is a heap leaching process. Copper is extracted from the leach liquor by solvent extraction. Solvent extraction is effected either before or after the heap neutralization leach depending on the nature of the copper ore or concentrate being treated.
Patent CA-2138981-A1 (CA)
Title: Method and apparatus for operating a motor vehicle alternator
Inventor: SOUSA MARK DENIS
IPC: F02B63/04
Filed: 1993-06-22
Abstract: An alternator driven by an internal combustion engine of a motor vehicle, said alternator comprising: an alternator hous-ing (106); stator circuit means (107) within said housing for conducting electrical energy from said alternator; armature circuit means (104) mounted for rotation within said housing; drive means (102) for transmitting energy from said internal combustion engine to said alternator; gear means (116, 118, 120, 122) connected between said drive means and said armature circuit means for driving said armature circuit means at two speeds defined by said gear means; clutch means (130) connected to said gear means for switching between said two speeds; and circuit means (200) connected to said stator circuit means for monitoring the frequency of electrical energy generated by said alternator and for controlling said clutch means to switch between said two speeds of said gear means dependent on the frequency of electrical energy generated by said alternator.
Patent CA-2140497-A1 (CA)
Title: Magnetic fuel treatment device and method
Inventor: WEBER MARTIN
IPC: F02M27/04
Filed: 1995-01-18
Abstract: A fuel treatment device comprising an inlet through which fuel enters the device; an outlet through which fuel exits the device; an annular fuel filtering element; and a magnet. The annular fuel filtering element comprises an inner wall forming the annulus of the annular fuel filtering element. The magnet and the annular fuel filtering element are arranged such that fuel flows from the inlet, through the annular fuel filtering element into the annulus, passes in proximity to the magnet and through the outlet. The fuel treatment device is easily installed in an engine system.
Patent CA-2140610-A1 (CA)
Inventor: LAL GAURI S
IPC: C07F9/54
Filed: 1995-01-19
Abstract: The present invention is a method for selectively fluorinating various methylenephosphonate and methylenephosphorane derivatives using an electrophilic fluorinating agent, such as N-fluoro 1,4-diazabicyclo[2.2.2]octane fluorinating agent, by fluorinating the monohalogenated methylenephosphonate or methylenephosphorane derivative to produce fluoromethylenephosphonate or fluoro-methylenephosphorane derivatives useful as fluorinated Horner-Emmons or Wittig reagents in producing selectively fluorinated vinylic compounds.