baber/WOPTO huggingface dataset:
Patent CA-1292016-C (CA)
Title: Process for making tertiary alkylphosphines
Inventor: WEFERLING NORBERT
IPC: C07F9/50
Filed: 1987-08-10
Granted: 1991-11-12
Abstract: PROCESS FOR MAKING TERTIARY ALKYLPHOSPHINES     ABSTRACT OF THE DISCLOSURE      Tertiary alkylphosphines of the general formula R3P, in which R stands for identical or different, linear, unsubsti-tuted alkyl groups having 3 to 20 carbon atoms, with the pro-viso however that one of the alkyl groups may be a secondary butyl group, are made by reacting hydrogen phosphide PH3 with an appropriate alkene or alkenes in stoichiometric excess, if desired, at elevated temperature and under increased pressure in contact with a radical-yielding agent. 2,2'-azobis-(2-me-thylbutyronitrile)  is  used as the radical-yielding agent in the absence of whatever alien solvent.
Patent CA-1287706-C (CA)
Inventor: SCHULTZ WOLF-STEFAN
IPC: D21H17/22
Filed: 1987-09-04
Granted: 1991-08-20
Abstract: Abstract of the disclosure An invert size for the engine and tub sizing of paper. It contains an aqueous dispersion of a fortified, unfortified, hydrogenated, or disproportionated and optionally esterified rosin or mixture of such rosins and of a dispersant that contains digested casein or an emulsifier of the general formula [R-(OCH2CH2)n-O-A]? Mx+                 (I) wherein R is an alkylphenyl, alkyl, or alkenyl group or a cycloalkyl group with condensed rings, A is a group with the formula -CH2COO or -SO3, Mx+ is a cation, x is 1 or 2, and n is a number such that approximately 21 to 76% of the molecu-lar weight of the anion is in the -OCH2CH2 group. To allow sizing control, the dispersant also contains cationic starch.
Patent CA-1283279-C (CA)
Inventor: WINGERT RUDOLF
IPC: B05C5/04
Filed: 1987-09-09
Granted: 1991-04-23
Abstract: PATENT CMS No. 430889-2010 ABSTRACT OF THE DISCLOSURE         A glue gun having an advancing mechanism which has a longitudinally slidable carriage member with a longitudinal opening for the glue stick is provided.  The carriage member has a first transverse opening in communication with the longitudinal opening and a second transverse opening in communication with the first transverse opening which is also transverse to the first transverse opening.  The first transverse opening has internal peripheral bearing surfaces.  A substantially T-shaped angularly displaceable gripper member is included which has an upper member defining a gripper head and a lower member defining a transverse lever.  The gripper head is receivable into the first transverse opening and has a front end, a rear end, an upper end and a gripper tooth near its front and upper ends for gripping the glue stick.  The gripper head further has exterior peripheral bearing surfaces near its front and rear ends which slidably bear against the internal peripheral bearing surfaces of the first transverse opening to retain the gripper head in the first transverse opening while permitting angular displacement of the head.
Patent CA-1275719-C (CA)
Title: Fuel control with smooth mode transition
Inventor: KRUKOSKI LEON
IPC: F02C9/28
Filed: 1987-09-21
Granted: 1990-10-30
Abstract: Abstract Fuel Control with Smooth Mode Transition A gas turbine engine control system which regulates fuel flow based upon a schedule which is a function of a primary parameter, such as engine pressure ratio, switches to a schedule based upon a secondary parameter, such as compressor speed, upon the inability to function in the primary parameter mode.  Upon switchover to the secondary parameter mode the scheduled value of the secondary parameter is down-trimmed to make it equivalent to the last known good value of the primary parameter so that the engine will not experience a sudden change in power level upon switchover  The down-trim is limited.  When the primary mode failure occurs during a transient the down-trim is limited to the difference between a scheduled reference value of the secondary parameter and a value of the secondary parameter calculated immediately preceeding loss of the primary parameter mode and based upon a known relationship between the primary and secondary parameter.  The down-trim limit assures a smooth transition from the primary to the secondary control mode when switchover occurs during an engine transient.
Patent CA-1278360-C (CA)
Title: Load sensing circuit of load compensated direction control valve
Inventor: BUDZICH TADEUSZ
IPC: F15B11/02
Filed: 1987-10-13
Granted: 1990-12-27
Abstract: Abstract of the Disclosure Load Sensing Circuit of Load Compensated Direction Control Valve A load sensing circuit of a load responsive direction control valve including a device for sensing load pressure signals identifying those load pressure signals as positive or negative and transmitting those identified positive or negative load pressure signals to the throttling compensator control of the load responsive valve, while also transmitting the positive load pressure signal to the pump control.  The load pressure signals from individual cylinder ports, together with the signals related to the direction of displacement of the controlled load, are transmitted electrically to an electrical logic circuit, which identifies the load pressures as positive or negative and generates the required electrical signals to the electrohydraulic controls, which connect the positive or negative load pressure to throttling compensator controls of the load responsive direction and flow control valve.
Patent CA-1321811-C (CA)
Title: Control system for electrical lighting
Inventor: LAWRENCE JOHN A
IPC: H05B41/04
Filed: 1987-10-27
Granted: 1993-08-31
Abstract: ABSTRACT       CONTROL SYSTEM FOR ELECTRICAL LIGHTS          A control system for lighting  a  bank  of  fluorescent lamps,   includes  input  terminals (10,  11) for mains voltage and output terminals (20, 21) to which the bank of  lamps is connected.  A transformer (T1) provides an reduced voltage  (216v)  as  compared  with  the  mains supply voltage (240v).  The transformer (T2) provides a supplementary voltage (24v).   Upon  start  up  of  the circuit,   a control circuit (CC) operates contact (Al) to energise the transformer (T2) so that terminals (20, 21)  receive both the reduced voltage from (T1) and the supplementary voltage from (T2)  (i.e.  240v)  which  is sufficient   to  strike  the  fluorescent  lamps.   The control circuit (CC), after a predetermined delay  e.g.      seconds,    switches   (Al)   to   disconnect  the supplementary  voltage  from  (T2).   The  lamps   then continue  to  operate  on  the reduced  voltage (216v) thereby reducing the power consumed by the lamps.
Patent CA-1335287-C (CA)
Inventor: JAFFE EDWARD E
IPC: C09B67/52
Filed: 1987-11-10
Granted: 1995-04-18
Abstract: Process for preparing yellow shade modification of gamma quinacridone whereby the .gamma.II form is converted to the .gamma.I form (1) by milling in an alcohol and in the presence of a base or (2) by premilling the .gamma.II form to the .gamma.I form and then refluxing or milling the resulting .gamma.I form in an alcohol in the presence of a base, the resulting product being a highly crystalline, bright, yellow shade, ready dispersable .gamma.I quinacridone pigment.
Patent CA-1286867-C (CA)
Title: Process for preparing aromatic polyamide fiber and film
Inventor: PARK HO J
IPC: D01D5/06
Filed: 1987-11-17
Granted: 1991-07-30
Abstract: PROCESS FOR PREPARING AROMATIC                    POLYAMIDE FIBER AND FILM          ABSTRACT    The present invention relates to a process for preparing aromatic polyamide (Aramid) fibers and film, and particularly to the preparation of aromatic polyamide fibers and film, by means of a molecular orientating polymerization in a polymerization-accelerant  (namely,  a polymerization accelerating-precipitation solvent)  following  the  preparation  of  a liquid  crystalline prepolymer dope  (LCPD)  of the aromatic polyamide.  Such fibers have high strength and high durability to friction and do not contain crystal defect layers perpendicular to the fiber axis, in contrast to the prior art materials.
Patent CA-1314636-C (CA)
Title: Atmospheric pressure capacitively coupled plasma atomizer for atomic absorption and emission spectroscopy
Inventor: LIANG DONG C
IPC: G01N21/73
Filed: 1987-12-11
Granted: 1993-03-16
Abstract: AN ATMOSPHERIC PRESSURE CAPACITIVELY    COUPLED PLASMA ATOMIZER FOR ATOMIC ABSORPTION AND EMISSION SPECTROSCOPY                ABSTRACT OF THE DISCLOSURE           A novel atmospheric pressure capactively coup-led radio frequency plasma discharge method and apparatus are disclosed.  The apparatus is suitable for atomic absorption and emission analysis of small, discrete sample volumes (1-50µl).  The plasma can be operated at very low Radio Frequency (RF) input powers (30- 600 W) which allows for optimal conditions for atom resonance line absorption measurements.  Sample introduction into the plasma is by an electrically heated tantalum strip vaporizer.  The vaporization and dissociation-atomization steps are separately controlled.  Analyte absorption takes place in the plasma discharge which is characterized by a long pathlength (10-50 cm) and low support gas flow rate (0.2 to 6 L/m) both of which provide for a relatively long residence time.  The optimum RF power for Ag analysis is between 100 and 200 W and the optimum support gas flow rate is about 0.6 L/m.  The device exhibits linear calibration plots and provides sensitivities in the range of from 3.5-40 pg.
Patent CA-1298471-C (CA)
Title: Hinged feed roll housing
Inventor: WILLIAMS TERRY A
IPC: A01F29/10
Filed: 1988-02-19
Granted: 1992-04-07
Abstract: HINGED FEED ROLL HOUSING Abstract of the Disclosure A forage harvester includes front and rear sets of upper and lower feed rolls that cooperate to convey a mat of crop material across a shear bar with which a cutterhead cooperates to cut the crop into short lengths.  The front set of feed rolls and the upper feed roll of the rear set are contained in a feed roll housing including a movable frame section that is horizontally pivotally mounted to a fixed frame section, containing the cutterhead, shear bar and lower feed roll of the rear set of feed rolls, for movement between a normal working position and service position permitting easy access to the shear bar.
Patent CA-1288242-C (CA)
Inventor: CAMPBELL IRA J
IPC: F01D25/28
Filed: 1988-03-17
Granted: 1991-09-03
Abstract: ABSTRACT OF THE DISCLOSURE An improved method and apparatus for changing alignment shims used in conventional three-key bearing support systems for steam turbine rotors is provided by coupling the two lower bearing support pads together to maintain their fixed relationship relative to the spherical bore within which they are mounted.
Patent CA-1289824-C (CA)
Title: Automatic home pet feeder
Inventor: HOOSER HERBERT M
IPC: A01K5/02
Filed: 1988-03-22
Granted: 1991-10-01
Abstract: ABSTRACT OF THE DISCLOSURE       An automatic home pet feeder is provided which when set to go off at a pre-determined time will automatically release food and water into trays for a pet to eat and drink.  An automatic computerized time setting device with a voice recording of the pet owner will sound at the pre-determined time to notify the pet that it's feeding time.
Patent CA-1317837-C (CA)
Title: Orthopedic casting materials and methods
Inventor: ERSFELD DEAN A
IPC: A61L15/07
Filed: 1988-04-11
Granted: 1993-05-18
Abstract: Abstract of the Disclosure The present invention relates to orthopedic casting materials having reduced tack and methods for preparing and using such orthopedic casting materials, wherein the materials comprise a nonwoven, stretchable fabric which is impregnated with a curable prepolymer resin.  The nonwoven fabric comprises fiber bundles and apertures between the fiber bundles, with each of the fiber bundles comprising a plurality of fibers having interstices therebetween.  The curable prepolymer resin is impregnated into the nonwoven fabric such that the interstices between the fibers receive the resin, while leaving the apertures between fiber bundles substantially unoccluded. Such orthopedic casting materials are relatively inexpensive and exhibit improved properties.
Patent CA-1289005-C (CA)
Title: Continuous round baler and method
Inventor: FELL FEROL S
IPC: A01F15/07
Filed: 1988-04-26
Granted: 1991-09-17
Abstract: CONTINUOUS ROUND BALER AND METHOD            Abstract of the Disclosure The  baler  has  a  "vertical"  bale  starting chamber in which the upwardly moving rear belts and the  downwardly moving  front  belts  cooperate to tumble and roll incoming material into a bale.  When the bale reaches full size in the expanded chamber, the bale is lifted while still in its chamber to a wrapping station where it continues to spin as a binding wrapper is applied.  During the lifting of the finished bale and subsequent application of the wrapper, fresh material entering the continuously moving baler is confined beneath the finished bale in a new starting chamber, whereupon the cycle is repeated.  As the new bale grows, a discharge ramp becomes formed by certain stretches of the belts and rollers to gravitationally discharge the wrapped bale from the baler without stopping advancement of the machine.
Patent CA-1289387-C (CA)
Inventor: HATTORI TORAO
IPC: F16H61/662
Filed: 1988-04-29
Granted: 1991-09-24
Abstract: ABSTRACT OF THE DISCLOSURE         A belt-and-pulley type continuously variable transmission comprises a drive pulley mounted on an input shaft and comprising a stationary conical member and a movable conical member, a driven pulley mounted on an output shaft and comprising a stationary conical member and a movable conical member, and a V-belt trained around the drive and driven pulleys.  The movable conical members are axially movable to vary the effective diameters of the drive and driven pulleys for controlling the speed ratio. The movable conical members are disposed on one side and the other side of the V-belt, respectively.  The transmission further includes a main servomechanism which is operatively coupled to the movable conical members for controlling axial movement of the movable conical members.  According to another embodiment, a belt-and-pulley type continuously variable transmission comprises a drive pulley mounted on an input shaft and comprising a stationary conical member and a movable conical member, a driven pulley mounted on an output shaft and comprising a stationary conical member and a movable conical member, a V-belt trained around the drive and driven pulleys, and first and second servo hydraulic pressure chambers for axially moving the movable conical members to vary the effective diameters of the drive and driven pulleys for controlling the speed ratio.  The transmission further includes a first servomechanism for producing a prescribed output of displacement in a prescribed direction based on a prescribed signal, and a second servomechanism operatively connected to the first servomechanism and one of the drive and driven pulleys for transferring the prescribed output of displacement produced by the first servomechanism to said one pulley.
Patent CA-1325733-C (CA)
Inventor: HAGEN FLOYD W
IPC: G01P5/165
Filed: 1988-08-18
Granted: 1994-01-04
Abstract: ABSTRACT OF THE DISCLOSURE          An air data sensor comprising an elongated probe having a standard, sharped edge, orifice pitot port or opening, and a tapered leading end that is elongated with respect to its lateral dimensions along the longitudinal axis of the probe.  The leading end portion blends into the main portion of the probe at a desired relatively short distance downstream from the pitot port.  The probe comprises a tube or barrel that can be rectilinear or circular in cross section.  Sets of sensing ports are utilized and at least one pair of ports is oriented on a common axis and facing in opposite directions. Reliable sensing can be obtained when two sets of oppositely facing ports are used with the axis of each set 90° to the axis of the other set.  By using the pressures sensed in more than one combination, that is by co-using the pressures, static pressure, impact pressure, angle of attack and angle of sideslip can be derived.  The ports are positioned on the tapered forward section, rearwardly of the pitot port before the full size of the basic tube is reached, and are positioned very close to the leading end.  The tapered forward section expands from the edge of the pitot port a short axial distance, not generally more than eight equivalent radii at the port location, and the ports are positioned greater than one and less than six equivalent radii aft of the pitot tip.  Having a true pitot pressure port which has a sharp edge is important where high angles of attack are encountered, and the sensor arrangement disclosed provides all of the necessary measurements in a manner that can be calibrated to provide the desired output pressures in a very compact probe.
Patent CA-1306800-C (CA)
Title: Disk file with in-hub motor
Inventor: MACH RICHARD E
IPC: G11B25/04
Filed: 1988-08-25
Granted: 1992-08-25
Abstract: Abstract of the Disclosure A compact housing 10 and disk stack subassembly for use in a data recording disk file permit the disk stack subassembly to be located entirely within and axially secured to the parallel interior walls 12, 14 of the housing 10. The disk stack subassembly includes an in-hub motor having a stator assembly 60 which is secured to a lower bearing support 42. The lower bearing support 42 is axially movable with respect to the outer race 33 of the lower bearing assembly 24. The inner race 27 of lower bearing assembly 24 is attached to the rotatable shaft 20 of the disk stack subassembly. The lower bearing support 42 and the attached stator assembly 60 are biased axially by means of disk spring 52 in the direction of the cavity 35 where the in-hub motor is located. Thus, the overall axial length of the disk stack subassembly is less than the axial distance between the parallel interior walls 12, 14 of the single piece half shell housing 10. This permits easy insertion of the completed disk stack subassembly into the housing 10 and connection thereto by means of axially aligned bolts 59, 61 which are threaded into upper bearing support 40 and lower bearing support 42.          When bolts 59, 61 secure the disk stack subassembly to the walls 12, 14 of housing 10, disk spring 52 is compressed to thereby apply an axial preload to lower bearing assembly 24, which prevents axial movement of the disk stack during operation of the disk file.
Patent CA-1312918-C (CA)
Inventor: AKAIWA YOSHIHIKO
IPC: H04W72/08
Filed: 1988-09-15
Granted: 1993-01-19
Abstract: NE-165 ABSTRACT OF THE DISCLOSURE In order to attain a frequency spectrum efficiency by narrowing channel interval without inducing interference from adjacent channels, a signal level of a mobile unit which requests channel access is detected at a land site. The signal level thus detected is used to assign a channel to the incoming mobile unit such that the assigned channel is adjacent to a channel whose signal level is closest to the signal level of the assigned channel. Further, in order to meet magnitude changes of received signals, the magnitudes are checked so as to reassign currently allocated channels.
Patent CA-1325410-C (CA)
Inventor: LAFOND LUC
IPC: E06B3/673
Filed: 1988-09-23
Granted: 1993-12-21
Abstract: ABSTRACT OF THE DISCLOSURE         The disclosure herein describes an apparatus for laying an adhesive tape along the peripheral edges of a glass sheet positioned on a work table with a view to forming a double glazed insulated glass panel.  The apparatus comprises a handle with a housing mounted at one end thereof and including therein a series of drive mechanisms for operating a pair of rollers positionning and laying the adhesive tape on the glass sheet.  A third roller whose axis is perpendicular to the axis of each of the tape-laying rollers, applies pressure to the tape being laid.  The hand-held apparatus is pneumatically driven and a lever is provided on the handle for allowing air pressure to the housing.
Patent CA-1326683-C (CA)
Title: Accelerated preparation of carboxylic acid esters
Inventor: POWANDA THOMAS M
IPC: C07C69/54
Filed: 1988-11-30
Granted: 1994-02-01
Abstract: (h)  Abstract of Disclosure The  instant  invention  involves  a  process  for  preparing carboxylic acid esters which comprises coreacting a carboxylic-acid and an aliphatic mono or polyol by maintaining one of the reactants in a reactor at elevated temperatures and adding the other reactant  to  the  reactor  over  a  period  of  time.   By employing this process esterification times  are significantly reduced.
Patent CA-1303125-C (CA)
Title: Rechargeable battery-powered device
Inventor: PEDERSON JOHN T
IPC: H01M2/10
Filed: 1988-12-29
Granted: 1992-06-09
Abstract: ABSTRACT         A self-contained rechargeable device, such as a flashlight, utilizing a rechargeable source of electrical energy, such as rechargeable batteries, and including a pivotally mounted connector for connecting the battery and any recharging circuit connected thereto to a source of recharging energy when positioned in a recharging position and, alternatively, having a standby position internally of the device in which the connector enables a circuit between the source of energy and a load to be operated thereby.  The circuit is completed by operation of a manually-operated switch connected between the energy source and the load.  The load is totally disconnected from the battery during recharging.  A manually-operated actuator effects movement of the connector generally between the charging position, wherein the connector completes a circuit between the rechargeable batteries and a potential source of electrical recharging energy in the standby position where the connector enables the circuit between the batteries and the load and an position wherein the actuator operates the manual switch for energizing the load.
Patent CA-1321544-C (CA)
Title: Use of glycerol ether ii
Inventor: BROHULT ASTRID
IPC: A61K31/08
Filed: 1989-01-06
Granted: 1993-08-24
Abstract: ABSTRACT  Use of at least one glycerol ether for making a pharma-ceutical preparation for treatment of AIDS and HIV-infec-ted persons.
Patent CA-1334888-C (CA)
Title: Process and apparatus for the production of high purity oxygen and carbon dioxide
Inventor: KRISHNAMURTHY RAMACHANDRAN
IPC: C01B32/50
Filed: 1989-04-03
Granted: 1995-03-28
Abstract: Highly  purified  gaseous  hydrogen  and  liquid  carbon dioxide are produced from a steam reformer/shift converter by passing the effluent from the latter through a multibed hydrogen PSA unit followed by an uncoupled carbon dioxide PSA  unit.   The  carbon  dioxide  PSA  unit  produces  a hydrogen-rich stream which is recycled to the feed to the steam reformer, a carbon dioxide-rich recycle stream which is  recycled  to  the carbon dioxide PSA unit feed and a carbon  dioxide-rich  product  stream which  is  introduced under pressure to a liquifier.  A waste stream from the liquifier  is  recycled  to  the  carbon  dioxide  PSA  unit feed.  A portion of the carbon dioxide-rich product stream is withdrawn from the compressor at a stage such that its pressure  is  higher  than that of the carbon dioxide PSA unit and returned thereto as a cocurrent purge preceding bed regeneration to obtain product.