baber/WOPTO huggingface dataset:
Patent CA-1281236-C (CA)
Title: Primary suspension for railway vehicle truck
Inventor: MULCAHY HARRY W
IPC: B61F5/28
Filed: 1986-08-28
Granted: 1991-03-12
Abstract: ABSTRACT    A railway vehicle truck of the four wheel type is provided having elastomeric devices operative in shear and disposed between the side frame and wheelsets in such a manner as to reduce hunting and to permit turning of wheelsets during curving.          Each elastomeric device is threadably fastened to the side frame and bearing adapters in a manner such that the separation of mating surfaces is precluded.
Patent CA-1279150-C (CA)
Title: Urethane-modified polyisocyanurate rigid foam
Inventor: DEGUISEPPI DAVID T
IPC: C08G18/00
Filed: 1986-09-18
Granted: 1991-01-15
Abstract: ABSTRACT OF THE DISCLOSURE     Improved crack-free rigid cellular polyisocyanurate polymers are disclosed that are derived from the reaction of an organic polyisocyanate combination comprising two particular types of polymethylene polyphenyl polyiso-cyanates (a) and (b), a trimerization catalyst, minor amount of a polyol, a surfactant, and an inert volatile blowing agent having a boiling point from about 30°C to about 90°C.     The novel rigid foams are particularly useful in preparing high molded bodies of foam by making multiple pours or lifts on top of each other in a mold.  The resultant molded body comprises a multiple of molded parts firmly fused to each other and crack-free.  Such high molded bodies and process therefor are particularly useful in the insulation of ships.
Patent CA-1315234-C (CA)
Title: Producing an alkali metal hydroxide in electrolytic cell with perfluorocarbon membrane
Inventor: MIYAKE HARUHISA
IPC: C25B9/19
Filed: 1986-12-11
Granted: 1993-03-30
Abstract: ABSTRACT    A method for producing an alkali metal hydroxide by electrolysis in an electrolytic cell comprising an anode compartment and a cathode compartment, which comprises supplying an alkali metal chloride to the anode compartment and water or a dilute alkali metal hydroxide to the cathode compartment, wherein a fluorine-containing cation exchange membrane comprising a first outer layer of a perfluorocarbon polymer having -SO3M groups (wherein M is an alkali metal) with a thickness of at least 5 µ m, and a second layer of a perfluorocarbon polymer having -CO2M groups (wherein M is an alkali metal) and a water content of from 2 to 7% by weight in a 45 wt% NaOH aqueous solution with a thickness of at least 5 µm, the water content of the first layer being higher than that of the second layer, is disposed with the first layer facing the cathode compartment.
Patent CA-1303482-C (CA)
Title: Method and apparatus for treating liquid/gas mixtures
Inventor: HENRIKSEN NOROLF
IPC: B01D3/00
Filed: 1987-01-09
Granted: 1992-06-16
Abstract: ABSTRACT           Method and means for treating of and mass transfer in liquid/gas mixtures, especially removal of oxygen from seawater to be injected into deep structures to increase the production of underground hydrocarbon resources.  The oxygen removal is performed by means of an inert stripping gas which is purified and regenerated before it is recirculated.         It is a main object of the present invention to provide a new and improved method to obtain maximum treatment efficiency and reduced residence time in the treatment zone.         This is obtained by pumping the liquid and the gas in turbulent concurrent flow with the inert gas through one or more tubelike zones to one or more separation zones where gas and liquid are separated. The liquid is led to the next treatment stage, while the stripping gas is returned to the prior treatment stage.  The liquid flow and gas flow are pumped and controlled independently of each other.  This gives freedom to obtain optimal treatment conditions and correct amount of transported liquid.
Patent CA-1284974-C (CA)
Inventor: DU PREEZ HERCULES P
IPC: B61F9/00
Filed: 1987-01-30
Granted: 1991-06-18
Abstract: A B S T R A C T            THE  INVENTION   provides  a  lifting  device  for re-railing  railroad  vehicles  comprising  a  guide rail which is adapted to be disposed substantially horizontally  in  use,  a  traveller  mounted  for movement on the rail, the traveller being adapted to suppport a lifting jack or the like in use, and drive means  for moving  the  traveller  along  the guide.
Patent CA-1285150-C (CA)
Inventor: NEW RICHARD
IPC: E02B3/16
Filed: 1987-03-02
Granted: 1991-06-25
Abstract: ABSTRACT OF THE DISCLOSURE The Removable Bottom Founded Structure (RBFS) is an offshore platform for petroleum drilling and producing operations intended for deployment in waters with severe weather and iceberg conditions.  The structure is normally held down by gravity, but during the deballasting procedure a hold-down system is employed to keep the platform on the subbase until site evacuation.  The system that is used to hold the platform down onto the subbase is located where the platform meets the subbase.  It operates on the principle of hydrostatics.  On the underside of the columns there are multiple chambers which may be evacuated by pumping and which are vented to the outside atmosphere.  Inflatable seals that define these chambers are positively engaged by this evacuation to create a fluid-tight seal so that no seawater will enter the evacuated chambers.  The reduction of the buoyancy forces will hold the platform onto the subbase until such time as the platform is totally deballasted.  Once that has occurred, the hydrostatic hold-down system is disengaged and the platform will quickly rise to the surface.          The structure is normally held down by gravity, but during the deballasting procedure a hold-down system is employed to keep the platform on the subbase until site evacuation.  The system that is used to hold the structure down onto the base is located in the underside of the column and operates on the principle of hydrostatics. There are multiple chambers which may be evacuated by pumping and then vented to the outside atmosphere. Flexible seals within these chambers are positively engaged by water at a pressure that is greater than the atmospheric pressure within the evacuated chambers.  This will hold the platform onto the subbase until such time as the platform is totally deballasted.  Once that has occurred, the hydrostatic hold-down system is disengaged and the platform quickly rises to the surface.
Patent CA-1287828-C (CA)
Title: Butterfly valve construction having a composite seat
Inventor: SCOBIE WILLIAM B
IPC: F16K1/226
Filed: 1987-03-10
Granted: 1991-08-20
Abstract: Abstract of the Disclosure A butterfly valve having a composite, reinforced seat, the  valve  having  a  one  piece  body  defining  a  radially inwardly extending annular rib,  the valve seat being a U-shaped annular member of a generally resilient material and having a radially outwardly opening channel  which engages the  rib  of  the  valve  body  to  provide  an  interlocking engagement between the valve seat and the valve body,  the seat  including a  series  of generally  U-shaped structural members made of a material more rigid than the resilient material of the seat,  the U-shaped member being bonded to the seat, the U-shaped members being spaced sufficiently to permit distortion of the seat so that it can be inserted in the valve body.
Patent CA-1308300-C (CA)
Title: Assembly for guiding wrap material from the rear of a baler to a bale-forming chamber inlet
Inventor: VERHULST MICHAEL J
IPC: A01F15/07
Filed: 1987-05-27
Granted: 1992-10-06
Abstract: ASSEMBLY FOR GUIDING WRAP MATERIAL FROM THE REAR OF A        BALER TO A BALE-FORMTNG CHAMBER INLET       Abstract of the Disclosure A bale wrapping mechanism for wrapping a large round bale with a wrap material such as plastic sheet material or net, is mounted to the rear of a bale discharge gate.  Drive rolls are located rearwardly of the gate and are selectively drivable for dispensing wrap material onto the rear end of a guide pan extending beneath and engaged with a portion of bale-forming belts extending between lower rear and lower front belt support rolls carried by the discharge gate.  A guide finger assembly is secured to the front of the pan and includes a plurality of fingers located in gaps between the bale-forming belts and including forward end portions curved arcuately about the lower front belt support roll for directing wrap material about the roll and into a pinch point defined between the belts and a bale desired to be wrapped by the material.
Patent CA-1282293-C (CA)
Title: Ostomy appliance coupling with viscoelastic liner
Inventor: KAY PAUL O
IPC: A61F5/448
Filed: 1987-07-24
Granted: 1991-04-02
Abstract: OSTOMY APPLIANCE COUPLING WITH       VISCOLELASTIC LINER     Abstract of the Disclosure A coupling ring assembly for an ostomy appliance in which one of the rings has a generally radially-facing annular channel for receiving and detachably engaging a latching flange of the other of the rings, the channel having a deformable liner of viscoelastic polymeric material secured therein.  In a preferred embodiment, the liner also has pressure-sensitive adhesive properties.
Patent CA-1300822-C (CA)
Title: Process for coloring keratinaceous material
Inventor: CHUNG-BONG-CHAN ALEXANDER
IPC: A61K8/49
Filed: 1987-09-24
Granted: 1992-05-19
Abstract: Abstract of the disclosure:       A process for dyeing keratinaceous substances such as hair, wool, skin  etc., which comprises contacting the same with a composition containing an aromatic azide or azidoindole component having the formula         or   wherein X is hydroxyl, alkoxyl, NR'R", in which R' and R" are independently of each other hydrogen, alkyl or hydroxyalkyl, and if R' is H or alkyl, then R" can be further carbamylalkyl, mesylaminoalkyl, acylaminoalkyl, sulfoalkyl, piperidinoalkyl or morpholinoalkyl, R' and R" can also form with the nitrogen atom to which they are attached a piperidine or morpholine ring, R is hydrogen, alkyl, hydroxyalkyl, halogen, nitro, cyano or alkoxyl, W, Y and Z are independently of each other H or R', wherein all of the aforementioned alkyl moieties can have between 1 and 8 carbon atoms, and then exposing the contacted keratinaceous material to a suitable light source for sufficient time to develop the color.  The composition can optionally also contain a color coupler component capable of interacting with said aromatic azide or azidoindole.
Patent CA-1312275-C (CA)
Title: Moth-proofing agent and moth-proofing method
Inventor: TAKEDA MUTSUHIKO
IPC: A01N43/32
Filed: 1987-11-03
Granted: 1993-01-05
Abstract: Abstract of the Disclosure A solid moth-proofing agent composed substantially solely of solid 1,3,5-trioxane is disclosed.  The solid 1,3,5-trioxane sublimes without being hydrolyzed to formaldehyde and repells moths.  This moth-proofing agent has a high moth-proofing action and gives no irritating odor, is not toxic to human bodies and has a high safety.  Furthermore, this moth-proofing agent causes no discoloration such as metallic substance in silver thread, gold threads and spangles used for clothing decoration.
Patent CA-1296698-C (CA)
Inventor: LONARDI EMILE
IPC: C21B7/18
Filed: 1987-11-06
Granted: 1992-03-03
Abstract: Abstract A metering valve comprised of two rotary registers are each provided with cutouts which are symmetrical in relation to the axis of the central opening defined by the movement of the registers.   In accordance with the present invention, a mechanism for operating the registers synchronously and in opposite directions is composed of levers and connecting rods acting on the axis of suspension and rotation of the registers through the action of, for example, hydraulic jacks.  In order to avoid the offsetting of the flow because of the difference between the radii of curvature of the registers, one of the connecting rods acting on the axis of the registers is adjustable in length.
Patent CA-1312152-C (CA)
Inventor: CHAMBERLIN JEFFREY L
IPC: B03D1/14
Filed: 1987-12-09
Granted: 1992-12-29
Abstract: ABSTRACT OF THE DISCLOSURE          A method and several embodiments of apparatus are disclosed for use in foam flotation separation.  The method discloses performing the separation in a module operated at nonatmospheric pressure, and the apparatus disclosed are suitable for use as the module of the method.  Both the method and the apparatus contemplate positive and negative pressure operation.
Patent CA-1339416-C (CA)
Inventor: JORGENSEN KLAVS HOLGER
IPC: C07K14/62
Filed: 1988-02-24
Granted: 1997-09-02
Abstract: Exchanging asparagine in the A21 position of insulin into another amino acid gives novel insulin derivatives which are more stable and less immunogenic than the parent compound. The insulin derivatives can be prepared by transpeptidation of a biosynthetic precursor which may be expressed in a host organism such as a yeast.
Patent CA-1316717-C (CA)
Title: Periodontal probe
Inventor: KUNG ROBERT T V
IPC: A61C19/04
Filed: 1988-03-11
Granted: 1993-04-27
Abstract: Abstract A periodontal probe has a probe finger extending from a handle to an L-shaped distal end which includes a probe stem portion adapted for insertion into a periodontal pocket and formed of a thermally insulative material.  A temperature sensing element is mounted at the extreme end of the stem portion.  Conductive leads extend from the sensing element, through the probe tip to the handle.  In a preferred embodiment, the temperature sensor is a thermistor which, together with the probe stem portion, is sealed within an epoxy outer skin.  The tip tapers so that the thermal mass of the probe in the vicinity of the sensing element quickly attains the temperature of surrounding tissue while minimally perturbing that temperature.  The handle contains signal processing and temperature display units, and the probe tip includes graduations for indicating probe depth.  Interchangeable sensor matching circuit elements adapt sensor elements having different characteristics to a common display driver.
Patent CA-1302748-C (CA)
Title: Anchoring unit for use in structures with internal open spaces
Inventor: BISPING HEINZ
IPC: F16B13/14
Filed: 1988-04-06
Granted: 1992-06-09
Abstract: ABSTRACT         An anchoring unit is made up of a screen-type sleeve and an insert sleeve to be placed into the screen-type sleeve.  The unit is anchored by a harden-able mass.  After the screen-type sleeve is inserted into a borehole in a structure with internal open spaces, the hardenable mass is injected into the screen-type sleeve.  When the insert sleeve is placed into the screen-type sleeve, the hardenable mass is forced outwardly through openings in the screen-type sleeve into the open spaces in the structure. The two sleeve's each have an inside surface and an outside surface with alternating projecting surfaces and recessed surfaces to facilitate a positive lock with the harden-able mass.  Further, the alternating surfaces improve the distribution of the hardenable mass.  Preferably, the two sleeves are formed of a plastics material.          A fastening element can be inserted into the insert sleeve for securing an object to the structure.
Patent CA-1294514-C (CA)
Title: Ball valve with built-in check valve
Inventor: KANEMARU TONAHARU
IPC: F16K5/06
Filed: 1988-04-18
Granted: 1992-01-21
Abstract: ABSTRACT OF THE DISCLOSURE    A ball valve with a built-in check valve includes a valve casing having a passageway for a fluid, a ball having a through hole formed therein, also having a valve seat formed inside thereof at a position in the vicinity of one end of the through hole, and rotatably housed in the valve casing so that the through hole is capable of communicating with the passageway, a guide bush provided within the through hole for guiding the check valve, a spiral spring wound on the guide bush for biasing the check valve in the direction of forming a seal contact between the check valve and the valve seat, and rubber or resin damping members attached to the check valve.  The check valve is received within the through hole for cutting off the communication between the passageway and the through hole and preventing a counter flow of the fluid, and has a sealing contact portion and a shoulder portion.  The shoulder portion of the check valve abuts against an end face of the guide bush when the check valve has been retracted by pressure of the fluid exerted on the check valve against the biasing force of the spiral spring.  The sealing contact portion of the check valve is brought into sealing contact with the valve seat by the biasing force of the spiral spring.
Patent CA-1317355-C (CA)
Title: Cable failure detection system
Inventor: VOKEY DAVID E
IPC: G01R31/02
Filed: 1988-04-22
Granted: 1993-05-04
Abstract: ABSTRACT A system is provided tor monitoring a communications cable for moisture penetration. A line signal generator is connected to a metal armour layer of the cable to apply a line signal to the armour. Changes in the line signal current are monitored to detect the condition of the cable. Moisture penetration can be monitored throughout the length of the cable. The armour layer is maintained at a negative potential with respective ground. This provides an additional cathodic protection to the cable.
Patent CA-1278348-C (CA)
Title: Method and apparatus for automatically converting input pulse train signals to output signals of desired polarity
Inventor: STORBERG DAVID G
IPC: H04L25/34
Filed: 1988-04-29
Granted: 1990-12-27
Abstract: Abstract A method and apparatus for sensing the polarity of an  input  pulse  train  signal  and  for  automatically changing its polarity as required by the circuit to which it will be applied, is disclosed.   The polarity of the input pulse train signal is determined by an averaging network that  detects the average DC level of the signal. The averaged signal is compared with one representing the desired  output  signal  polarity  to  provide  a  control signal  which  is  used  to  determine  whether  the  input signal  is of  the proper polarity  to  form the output signal or whether it must first be inverted.  The phase and timing parameters of the output pulse train signal match those of the input signal.
Patent CA-1295871-C (CA)
Title: Hitch and drive structure for pto-driven, semi-integral implement
Inventor: STEPHENSON ROGER D
IPC: A01B71/06
Filed: 1988-05-18
Granted: 1992-02-18
Abstract: HITCH AND DRIVE STRUCTURE FOR               PTO-DRIVEN, SEMI-INTEGRAL IMPLEMENT                   Abstract of the Disclosure A hitch adapter is used to couple a PTO-driven implement to a three-point hitch arrangement of a towing tractor.  The implement includes a transmission housing mounted for rotation about an upright axis that passes through a ball connection effected between a drawbar of the hitch adapter and the implement tongue.  The tractor power take-off shaft is connected by a telescopic drive shaft to an input shaft supported by the transmission housing for rotation about an axis extending perpendicular to and intersecting said upright axis.  Provided for steering the transmission housing for maintaining the input shaft disposed in parallel relationship to the tractor power take-off shaft is a steering assembly including a pair of steering arms depending from the housing and engaging diametrically opposite locations of a cylindrical guide surface of a guide member fixed to the drawbar with the guide surface arranged concentrically to an axis located in a plane containing the previously mentioned axes and intersecting the upright axis at the ball connection.
Patent CA-1316699-C (CA)
Title: Physiologically active agent for agricultural use
Inventor: MAEKAWA YOSHIO
IPC: A01N63/28
Filed: 1988-05-27
Granted: 1993-04-27
Abstract: Abstract of the Disclosure A physiologically active agent for agricultural use comprises,  as  the  active  ingredient,  a mixture  of  2-piperidone and an N-acyl lactam compound represented by the general formula:                    (wherein n is 1 or 2).  This agent promotes the growth of plant roots,  helps balance the microbial  flora in the soil,  and  assures  normal  soil  environment  over  long periods.
Patent CA-1319140-C (CA)
Title: Microporous crystalline composite compositions and processes for making them
Inventor: PELLET REGIS J
IPC: B01J29/04
Filed: 1988-06-03
Granted: 1993-06-15
Abstract: D-15,444 ABSTRACT OF THE DISCLOSURE          The invention involves composite structures of multiple phases, at least two of which are inorganic crystalline compositions that are contiguous and have a common crystal framework and structure, and at least one of them contains phosphorus and aluminum atoms as part of its crystalline framework structure; and to processes for making the same.  It is desired that each phase has a microporous molecular sieve structure.  The process involves the growth of a crystalline structure constituting such a phase in the presence of crystals of another of such a phase.  Preferably, the process involves a hydrothermal crystallization treatment of the precursors to such phase.
Patent CA-1321245-C (CA)
Title: In-line microwave warming apparatus
Inventor: CARR KENNETH L
IPC: G01N1/31
Filed: 1988-06-23
Granted: 1993-08-10
Abstract: ABSTRACT OF THE DISCLOSURE            A  microwave  apparatus  for  warming  of  a liquid such as blood or IV fluids in which the warming occurs in-line by means of a microwave heating cavity having a source of microwave energy coupled thereto. A support element in the form of a bobbin forms an assembly with an IV tube wound about the bobbin.  This tubing-bobbin assembly is inserted into the microwave heating  cavity.     A  non-invasive,   non-perturbing microwave temperature monitor is provided coupled to the  microwave  heating cavity  for  monitoring  the temperature  of  liquid  flowing  in  the  IV  tube. Controls are provided including a desired operating temperature    selector  for    combining    signals representative of,  not only cavity temperature,  but also  inlet  and outlet  temperatures to  control  the power  level  of  microwave  energy  delivered  to  the heating cavity.
Patent CA-1338354-C (CA)
Title: Process for preparing halogen imides and their use as fire retardants
Inventor: BONNET EVELYNE
IPC: C08L101/00
Filed: 1988-07-07
Granted: 1996-05-28
Abstract: Preparation of halogenated imides derived from hydrazine and halogenated dicarboxylic acid anhydride and capable of being employed as flame-retardant agents for plastics. The condensation of hydrazine and of halogenated dicarboxylic acid anhydride is carried out in aqueous medium at a temperature ranging from 40 to 225 DEG C with an anhydride/hydrazine molar ratio lower than 2.
Patent CA-1331301-C (CA)
Title: Silver halide photograhic material and method for forming an image
Inventor: INOUE NOBUAKI
IPC: G03C1/16
Filed: 1988-08-29
Granted: 1994-08-09
Abstract: ABSTRACT OF THE DISCLOSURE       A  negative  silver halide  photographic  material composed  of  a  support  having  thereon  at  least  one chemically  sensitized  silver  halide  emulsion  layer  at least  one  hydrophilic  colloidal  layer  containing  a hydrazine derivative and a compound having substantially all absorption maxima outside the visible light  region represented by formula (I):                               (I) wherein Z11 and Z12 each represents a non-metallic atomic group  necessary  for  completing  a  substituted  or unsubstituted heterocyclic ring selected from benzoxazole, benzothiazole,   benzoselenazole,   naphthoxazole, naphthothiazole, naphthoselenazole,  thiazole,  thiazoline, oxazole,   selsnazole,   selsnazoline,   pyridine, benzimidazole, and quinoline; R11 and R12 each represents a substituted or unsubstituted alkyl group, provided that at least one of them is substituted with an acid radical;          X represents a counter ion necessary for charge balance; and n is 0 or 1.     The  photographic  material exhibits  high sensitivity and provides an image having high contrast and high density, with neither black pepper nor residual color in the non-image area.