baber/WOPTO huggingface dataset:
Patent CA-2027373-A1 (CA)
Title: Stuffing box assembly
Inventor: PIPPERT FREDERICK B
IPC: F16J15/18
Filed: 1990-10-11
Abstract: A stuffing box assembly comprising a body which has a bore defined by a generally cylindrical wall and a shaft extending concentrically through the bore. A sleeve is disposed in the bore in surrounding relationship to the shaft, the sleeve havfng a cylindrical portion and an annular flange, the sleeve defining an annulus between the cylindrical portion and the wall defining a bore. At least one and preferably several annular members formed of an elastomeric material are disposed in the annulus. Astop means limits movement of the annular member away from the flange portion of the sleeve, the annular members being disposed between the flange portion and the stop means. One or more seals or packings for sealing between the shaft and the wall are disposed between the shaft and the wall on the opposite side of the flange portion from the annular member. An adjustable packing gland or the like urges the seal or packings against the flange portion of the sleeve such that the annular member is compressed and exerts a reactive force against the flange portion, the annular members also serving to form a seal between the wall and the cylindrical portion of the sleeve.
Patent CA-2028300-A1 (CA)
Inventor: BOATENG DANIEL A D
IPC: B01D61/58
Filed: 1990-10-23
Abstract: A method for the recovery of acids from dilute aqueous acid solutions containing at least one metal cation such as Zn, Ca, Mg, Na, K, Mn, Al, Fe, Ni and Co comprises feeding solution to the dialyzate compartments of a dialysis unit.          The dialyzate, substantially containing any metal cations, is removed from the process.  The diffusate, containing the acid from the feed solution and being substantially free of metal cations, is fed into the diluate stream circulating through the diluate  compartments of an electrodialysis unit.  A portion of the circulating diluate is returned to the diffusate compartments of the dialysis unit.   The concentration gradient of acid anions across the dialysis membranes  is  increased  by adding  a  quantity  of  acid-receiving solution to the returned diluate portion.  The feed rates of solutions to the compartments of the dialysis unit are at least double those in processes using only dialysis.  A concentrate stream is recirculated through the concentrate compartments of the electrodialysis unit.  The applied  current   causes   an   increase   in   the   acid concentration  in  the  concentrate.    A  portion  of the concentrate is withdrawn as a concentrated acid product substantially free of metal cations.  If desired, the acid concentration in the product is controlled by feeding a quantity  of  the  diffusate  from the  dialysis  into  the circulating concentrate stream, as necessary.  The dialysis is carried out at ambient temperatures up to 45C,  and electrodialysis at from 0 to 60C and at 100 to 1000 A/m2.
Patent CA-2028631-A1 (CA)
Inventor: NAKAMURA YOSHIYUKI
IPC: B65C9/32
Filed: 1990-10-26
Abstract: ABSTRACT OF THE DISCLOSURE      A 3.5-in. disk case is stored into a rotary holding frame through transfer means having a group of rollers, the intermediate portion of a printed label is stuck to the upper end surface of the disk while the holding frame is brought upright from the horizontal state, and the label is brought into pressure contact with, and automatically attached to, both surfaces of the disk when the holding frame is returned to the horizontal position and the disk is passed through the transfer means in the opposite direction.
Patent CA-2028883-A1 (CA)
Title: Cyclohexanedimethanol-adipate based prepolymers and reaction injection molded products made therefrom
Inventor: MAFOTI ROBSON
IPC: C08G18/42
Filed: 1990-10-30
Abstract: Mo3310 NOVEL CYCLOHEXANEDIMETHANOLADIPATE   BASED PREPOLYMERS AND REACTION INJECTION MOLDED PRODUCTS MADE THEREFROM                 ABSTRACT OF THE DISCLOSURE The present invention is directed to a polyisocyanate prepolymer prepared by reacting an isocyanate based on 4,4-methylenebis(phenyl isocyanate) and a polyester polyol by reacting 1,4-cyclohexanedimethanol and adipic acid. The invention is also directed to a RIM process using such prepolymers.
Patent CA-2030172-A1 (CA)
Title: Dual operation ratchet wrench
Inventor: ANDERSEN-VIE AXEL E
IPC: B25G1/00
Filed: 1990-11-16
Abstract: ABSTRACT OF THE DISCLOSURE.      The invention relates to ratchet wrenches having a torque transfer member rotatably mounted on one end of a handle.  The improvement comprises a pair of reinforcing plates mounted on the central portion of the handle having a polygonal shaped opening which extends through the plates and handle adapted to releasably receive one end of a socket extension.  When the extension is inserted in the opening the combination of the handle and extension form a T shape whereby the ends of the handle are utilized to rotate the extension to transmit high torques for heavy duty applications which might not otherwise be possible with the ratchet torque transfer member.
Patent CA-2031398-A1 (CA)
Title: Propargyl compounds and preparation thereof
Inventor: YAMADA MITSUO
IPC: C07C211/48
Filed: 1990-12-03
Abstract: Abstract of the disclosure The invention provides a novel class of propargyl compounds represented by the formula:       wherein R is an C1-C20 alkyl group, C1-C20 alkylene group, C1-C20 alkylene group interrupted by -NH- group(s), C6-C7 alicyclic group and an aromatic group; R1 comprises 1-100%          -CH2-C?CH group and 99-0% hydrogen atom and n is an integer of 1 to 4, and preparation thereof.    These compounds are useful as coating material or sealer or rim-injection molding material.
Patent CA-2031420-A1 (CA)
Title: Ring type lan having fault processing system
Inventor: OHBA TOSHIMITSU
IPC: H04L12/437
Filed: 1990-12-04
Abstract: RING TYPE LAN HAVING FAULT PROCESSING SYSTEM               ABSTRACT OF THE DISCLOSURE      A ring type LAN with a fault processing system which detects a faulty station when a logical fault occurs at any of a plurality of stations making up the ring type LAN and which further restores the ring type LAN, which provides at each station at least a timer for measuring the transmission time of a beacon frame or other fault notifying frame and, when the timer runs out of time, forms a loopback or bypass with the adjoining station, temporarily removes the stations from the ring, has the removed stations detect by themselves if they are normal, and, when the results of detection are that they are normal, once again incorporates the stations, other than the one for which the time has run out, into the ring, thus finally rebuilding the ring type LAN in a state with just the faulty station removed from the ring.
Patent CA-2033648-A1 (CA)
Title: Polymer derived ceramic fibers having improved thermal stability
Inventor: FREEMAN HARVEY A
IPC: C04B35/571
Filed: 1991-01-04
Abstract: POLYMER DERIVED CERAMIC FIBERS HAVING IMPROVED THERMAL          STABILITY                            ABSTRACT           The present invention relates to ceramic fibers of the Si-C-N-O series with a diameter less than about 20 micrometers.  It has been unexpectedly found that the thermal stability of these fibers can be increased by minimizing the impurity content, primarily the content of metals or metallic compounds.  Such fibers with low levels of contaminants retain greater than about 60 percent of their initial tensile strength when subjected to temperatures of 1300-1400°C for at least 30 minutes in a non-oxidative environment.
Patent CA-2038843-A1 (CA)
Title: Apparatus and methods for performing an application-defined operation ondata as part of a system-defined operation on the data
Inventor: ANDRADE JUAN M
IPC: G06F15/16
Filed: 1991-03-22
Abstract: Apparatus and method for performing an application-defined operation on data as part of a system-defined operation on the data. The apparatus and method are embodied in a distributed transaction processing system in which processes running on component systems which may be heterogeneous interact according to the client-server model. In the apparatus and method, a type is associated with the data and application-defined operations which are part of certain system-definedoperations are defined for each type. The system-defined operations which the application-defined operations are part of include allocation, reallocation, anddeallocation of buffers and sending buffers between clients and servers using remote procedure calls. In the allocation and reallocation operations, the application-defined operation is initialization; in the deallocation operation, it is uninitialization. In buffer sending, the application-defined operations include operations done on the buffer contents before sending, routing, encoding the buffer contents into a transfer syntax, operations done on the buffer contents after sending, decoding the buffer contents from the transfer syntax after receiving, and operations done on the buffer contents after receiving. Data structures in the processes associate the data and its type and a type and its application-defined operations. Servers employ a shared bulletin board data structure to indicate the types they accept.
Patent CA-2041662-A1 (CA)
Title: Process for continuously coating metal with titanium oxide and equipment therefor
Inventor: ALLAM IBRAHIM M
IPC: C23C2/26
Filed: 1990-09-20
Abstract: 2041662 9104349 PCTABScor01 Apparatus and method of coating substrate metals with an alloy coating by dipping the substrate into a body of molten alloy. The apparatus and method are such that entry of ambient air is minimized while inserting uncoated metal substrate and removing coated metal substrate. Such means includes a closed chamber having an entry port, a cooling section above the entry port, a preheating and annealing section below the entry port, a furnace and a crucible section for melting the alloy and coating the substrate, means for successively lowering of the uncoated substrate into the preheating/annealing section, then into the crucible, then raising the coated substrate into the preheating/annealing section, then lifting it into the cooling section, then lowering it into the port section and removing it. A heat reflector is provided above the crucible to conserve heat while the coated substrate is cooling.
Patent CA-2043024-A1 (CA)
Title: Process and device for high-speed flame spraying of refractory wire or powder weld filler for the coating of surfaces
Inventor: HUHNE ERWIN D
IPC: B05B7/20
Filed: 1991-05-22
Abstract: BERLITZ TRANSLATION SERVICES                        No. 79018196 Abstract A  process for high-speed flame spraying of refractory wire and powder weld filler for the coating of surfaces, using at least two gas mix systems operating independently of each other, with which the wire or powder spray weld filler brought into the primary chamber is melted by primary heating flames arranged concentrically around a charging channel, accelerated with the resulting high-speed flame and conveyed through an expansion nozzle into a downstream secondary combustion chamber; the latter is streamed through while the molten plastic weld filler is carried along by the primary high-speed flame at supersonic speed, which runs into an axially centrally widened, downstream and water cooled secondary expansion nozzle, or into its bore, so that in the area of radially, axially and focusingly arranged secondary fuel gas-oxygen channels running into the secondary combustion chamber a partial vacuum area is produced and a hot gas mixture with low streaming pressures can be added, whereby in the secondary chamber radially, axially around the primary high-speed flame the heating gas mixture ignites, expands and because of a high flame temperature and extreme rates of flame propagation and combustion contributes to melting the remainder of the spray weld filler and to its additional acceleration.
Patent CA-2044307-A1 (CA)
Title: Method for injecting substances into cells
Inventor: MORI YUICHI
IPC: C12M1/00
Filed: 1991-06-11
Abstract: Abstract of the Disclosure The present invention provides a method for introducing a substance into a cell on a plate capable of immobilizing and easily detaching the cells.  More specifically, the method employs the use of a temperature-responsive polymeric compound and a cell adhesive substance to immobilize and detach the cells.
Patent CA-2045369-A1 (CA)
Inventor: HANSON STEVEN P
IPC: F21L4/00
Filed: 1991-06-26
Abstract: COMBINATION FLASHLIGHT/TROUBLE LIGHT               Abstract A combination flashlight-trouble light includes a flashlight body; an energy source such as a battery within the body; a light source connected to the energy source; a reflector carried by the flashlight body arranged with respect to the light source for producing a light beam along a first axis; and a trouble light body removably engagable with the flashlight body and including a trouble light reflector for reflecting the light beam at least one direction generally perpendicular to the axis and including a trouble light hook on the trouble light body.
Patent CA-2045899-A1 (CA)
Title: Moldable polyester resin having high heat stability in melting and molded article thereof
Inventor: KANAKA KEIICHI
IPC: C08G63/66
Filed: 1991-06-28
Abstract: Abstract There is disclosed a polyester resin having an end carboxyl group concentration of not higher than 40 milliequivalent/kg (meq/kg) and a high heat stability in melting and forming substantially no thermal decomposition product in melt molding, which is produced mainly from an aromatic dicarboxylic acid or its ester-forming derivative (a) and an aliphatic dihydroxy compound (b) having 2 to 8 carbon atoms by a process wherein an ester-forming compound (c) of the following general formula (I) is copolymerized therewith in such an amount that the introduction rate thereof will be 0.01 to 7 molar % based on the aromatic dicarboxylic acid:          HO-R-O-A-O-R-OH               (I) wherein A represents a divalent organic radical having at least one aromatic ring, R represents a divalent organic radical selected from among aliphatic hydrocarbon groups and polyoxyalkylene groups each having 2 to a carbon atoms. The resin is suitable to mold.
Patent CA-2048034-A1 (CA)
Inventor: KURATA MITSURU
IPC: B41J25/34
Filed: 1991-07-29
Abstract: An ink jet recording apparatus wherein recording is effected by ejecting ink to a recording material from a recording head cartridge detachably mountable to a main assembly of the apparatus includes a carriage, movable in a main scan direction, for mounting thereon the recording head cartridge; mounting and demounting mechanism for controlling mounting and demounting of the recording head cartridge on the carriage; a controlling member for controlling operation of the mounting and demounting mechanism to permit mounting or demounting of the recording head cartridge only when the carriage is disposed outside a position where it is faced to the recording material.
Patent CA-2049075-A1 (CA)
Title: Remote control of fluorescent lamp ballast using power flow interruptioncoding with means to maintain filament voltage substantially constant as the lamp voltage decreases
Inventor: HU FENG-KANG
IPC: H02J13/00
Filed: 1991-08-13
Abstract: A dimming ballast system wherein the light output of the lamp is controlled by a remote source.  The ballast output voltage is regulated by a voltage control feedback loop, the dimming function being achieved by varying the set point of the control  loop.   The remote control  signal,  coded by interrupting the current flow to the ballast for a short period,  is processed digitally by a microcomputer which generates information to vary the control set point.  Circuit means are provided to control the filament voltage of the fluorescent lamps such that as the lamps are dimmed down, the filament voltage is maintained or slightly increased, thus prolonging lamp life and stabilizing the lamp light output.
Patent CA-2049954-A1 (CA)
Title: Fuel additive composition
Inventor: OLSEN RALPH E
IPC: C10L1/234
Filed: 1991-02-12
Abstract: A homogeneous fuel additive composition which comprises: (a) a dispersant comprising a hydrocarbyl poly (oxyalkylene) aminocarbamate having at least one basic nitrogen atom and an average molecular weight of about 1000 to about 3000; (b) an in-jection detergent comprising a branched-chain hydrocarbyl amine having at least one basic nitrogen atom and an average molec-ular weight of about 300 to about 700, wherein the hydrocarbyl moiety is derived from polymers of C2 to C6 olefins; (c) a fuel demulsifier which is homogeneous with the other components of said fuel additive composition; and (d) a natural or syn-thetic carrier fluid.
Patent CA-2053430-A1 (CA)
Title: Heated door
Inventor: JORDE MICHAEL J
IPC: F24F13/08
Filed: 1991-10-15
Abstract: Abstract of the Disclosure A heated ventilation door for a potato storage facility or the like is described comprising a door pivotally mounted in a support mounted in an opening formed in one wall of the storage facility.   The door includes a hollow peripheral frame having heating fluid contained therein which is heated by an electrical heating element in communication therewith.  The heating element is controlled by a thermostat to conserve energy and is also controlled by a mercury switch which deactivates the heating element when the door is in its open position.  When the door is in its closed position,  the heating element heats the heating fluid in the peripheral  frame at the location of the heating element in the peripheral  frame causing the heating fluid to circulate around the peripheral frame.
Patent CA-2055317-A1 (CA)
Title: Dispensing package for a pourable material having a bottle, a pour-back spout and a closure
Inventor: BENIOFF B RICHARD
IPC: B29C65/56
Filed: 1991-11-12
Abstract: The present invention discloses an improved bottle for dispensing a pourable substance. The bottle is blow-molded from a suitable material and has a neck with a collar portion produced with an undercut channel in the interior of the neck finish just below the top surface of the collar. A pouring spout including a surface feature which fits into the channel is placed in the channel before the collar cools significantly and before the majority of cooling-caused shrinkage of the collar and channel occurs. When maximum shrinkage occurs, the pouring spout is locked into the undercut channel and sealed to the interior of the neck finish.
Patent CA-2058716-A1 (CA)
Title: Printed circuit board assembly handle/stiffener
Inventor: GRAMMAS JAMES J
IPC: H05K7/14
Filed: 1992-01-03
Abstract: A printed circuit board handle is disclosed for use with a printed circuit board. The printed circuit board handle includes a flange that extends for the length of the handle and is mounted to the printed circuit board. Two ribs protrude from the side of the flange that is adjacent to the printed circuit board and extend for the length of the handle. The ribs contact the printed cir-cuit board in such a manner as to separate the body of the flange from the printed circuit board and thereby prevent the capillary action that causes entrapment of flux between the flange and the printed circuit board, during the wave soldering process.
Patent CA-2059724-A1 (CA)
IPC: A01C5/06
Filed: 1992-01-21
Abstract: An insert for use in an agricultural tool having a cutting edge for forming a furrow.  The insert includes an elongated wedge having a leading end, a trailing end, a top surface, a first side surface and a second opposing side surface coterminous therewith defining a longitudinally extending lowermost edge. The first and second side surface converge from the trailing end to the leading end and diverge from the lowermost edge to the top surface to form a v-shape leading end.  In a preferred embodiment the insert includes a means for aligning the lowermost edge of the insert with the cutting edge of the tool.
Patent CA-2060469-A1 (CA)
Inventor: MCGUIRE DARREL
IPC: B66C9/10
Filed: 1992-01-31
Abstract: The invention is an improved method for fabricating apparatus weldments such as, for example, wheeled end trucks for overhead cranes.  The apparatus has a pair of spaced, wheeled end modules, a pair of beams extending between the modules and at least one reference such as a reference plane used to initially align end modules placed in a fixture prior to beam-module attachment by welding.  The improved method includes the steps of positioning the modules with respect to the reference, tack welding each piece in position for permanent attachment to the modules and permanently attaching each piece to a module.  Permanent attachment includes applying welds in sequence to the first end of one beam, to the second and first ends (in that order) of the second beam and, finally, to the second end of the first beam.  Where each module-and-beam-end attachment has plural welding paths, preferred steps are described for the order in which each path at each beam end is to be welded.  The effects of heat-induced piece distortion, which is unavoidable, are essentially canceled and misalignment in the finished apparatus is substantially avoided.
Patent CA-2061646-A1 (CA)
Inventor: HAGERTY LAWRENCE J
IPC: B23K35/363
Filed: 1992-02-21
Abstract: A short hood for enclosing and providing a protective atmosphere over not more than the solder pot of a machine for wave soldering printed circuit boards.  Other operative areas of the machine are exposed to air.  The entrance and exit openings to the hood for the circuit boards are covered by electrically conductive curtains of thin material cut into vertical strips.  The process employs a thin layer of no-clean flux and allows up to 5% oxygen content in the protective atmosphere.
Patent CA-2061763-A1 (CA)
Title: Prealloyed high-vanadium, cold work tool steel particles and method for producing the same
Inventor: STASKO WILLIAM
IPC: C22C38/00
Filed: 1992-02-24
Abstract: Prealloyed high-vanadium, cold work tool steel particles are provided for use in the powder-metallurgy production of tool steel articles. The particles are of a cold work tool steel alloy having an MC-type vanadium carbide dispersion of a carbide particle size substantially entirely less than 6 microns and in an amount of 18.5 to 34.0% by volume. The particles are produced by atomizing a molten tool steel alloy at a temperature above 2910°F and rapidly cooling the atomized alloy to form solidified particles therefrom. The particles have the MC-type vanadium carbide dispersion therein.
Patent CA-2063221-A1 (CA)
Inventor: HAGIHARA SHOJI
IPC: G11B7/126
Filed: 1992-03-17
Abstract: A device for setting a write laser power for writing data on a recording medium includes first and second oscillators for producing carrier signals having high frequencies f1 and f2.  The carrier signals are added to produce a sum signal that is applied to a driver for producing a laser drive signal.  The power of the laser drive signal is changeable among various levels.  Using the laser drive signal, a write/read head writes test signals at preselected areas on the recording medium with different writing power levels applied to different preselected area.  After writing the test signals, the head reads the recorded test signal.  From the read signals, an unwanted signal having a frequency f1-f2 is filtered, and the level of this unwanted signal is detected and stored.  A minimum value of the stored levels is selected, and the area at which the minimum value was obtained is detected.  The writing laser power is then set at a level corresponding to the level used for writing the test signal in this detected preselected area.