baber/WOPTO huggingface dataset:
Patent CA-2033201-A1 (CA)
Title: Method for forming a lining on a metallurgical vessel, a composition and a machine for the application of said method
Inventor: DAUSSAN JEAN-CHARLES
IPC: C04B35/66
Filed: 1990-05-30
Abstract: ABSTRACT OF THE DISCLOSURE      "A method for forming a lining on a metallurgical vessel, a composition and a machine for the application of said method"           The method for forming a lining on the internal faces (2) of a metallurgical vessel (1) for receiving molten metal involves the following steps : a)   at least one movable wall (3) is positioned at a predetermined distance from the internal face (2) of said vessel, b)   a composition (4) containing at least one powdered refractory material is introduced between the face (2) of the vessel and the movable wall (3), c)   said powdered material is heated so as to agglomerate at least that surface which is intended to come into contact with molten steel, d)   said movable wall (3) is displaced and the aforementioned steps are repeated in order to obtain a continuous lining on the internal faces of the vessel.
Patent CA-2033513-A1 (CA)
IPC: G01L19/06
Filed: 1991-01-02
Abstract: An overpressure relief plug for safeguarding pressure gauges that tend to damage due to internal overpressure com-prising a safety plug for interference sealing fit application to an aperture formed in the pressure gauge housing that otherwise communicates the housing chamber that may be subject to overpressure to the ambient atmosphere, which plug is formed from silicon elastomer to define a shank that is pressed into the housing aperture, a grip portion on one end of the plug shank that is to aid in initially applying the plug to the housing as part of the gauge assembly procedure, and a stop cap at the other end of the shank that forms a head for the plug and that is spherically contoured and defines a planar stop annular surface thereabout having a marginal rim proportioned for firm sealing engagement with the exterior surface of the housing on application of the plug to the housing, with the plug shank and aperture being proportioned to "pop out" of the housing aperture when the pressure of the housing chamber subject to relief protection is above a predetermined minimum gauge pressure and no more than about a maximum gauge pressure.
Patent CA-2033531-A1 (CA)
Title: Azaoxindole derivatives
Inventor: ROBINSON RALPH P
IPC: A61P11/00
Filed: 1991-01-03
Abstract: This invention relates to novel 4-, 5-, 6-, and 7-azaoxindole derivatives of the formula:                                 (see fig. I) (wherein one of A, B, D and E is N and the others are CH; Y is H, OR3, OH, lower alkyl, CF3, COR3, halogen, COOR3, CONR3R3, CN, NO2, SR3, SOR3, SO2R3 or SO2NR3R3; R1 is lower alkyl or CONHR4; R2 is lower alkyl, (CH2)nR5 [where n is 0 or 1] or NHR6; R3 is H, lower alkyl, allyl, optionally substituted phenyl or optionally substituted benzyl; R4 is H, lower alkyl, hydroxyalkyl, cycloalkyl, COR3, optionally substituted phenyl or optionally substituted heteroaryl; R5 is H, cycloalkyl, optionally substituted phenyl or optionally substituted heteroaryl; R6 is phenyl, thiophene or furan, each optionally substituted; W is H, alkanoyl, cycloalkylcarbonyl, phenoxycarbonyl, acyloxyalkyl, alkoxycarbonyloxyalkyll alkylsulfonyl, lower alkyl, methylphenylsulfonyl or dialkylphosphonate, with the proviso that (a) when E is N, then at least one of X and Y is other than H; and (b) when either R2  is NHR  or R1  is lower alkyl, then W is H).  The compounds are anti-inflammatory and analgesic agents and inhibitors of one or more of prostaglandin H2 synthase, 5-lipoxygenase and interleukin-1 biosynthesis.  They are useful in the treatment of chronic inflammatory diseases, allergy, psoriasis, various bone diseases, and immune dysfunctions such as systemic lupus erythematosis.
Patent CA-2033868-A1 (CA)
Title: System for reading and writing data from and into remote tags
Inventor: LANDT JEREMY A
IPC: G07B15/06
Filed: 1991-01-09
Abstract: The subject invention relates to a system for identifying, for writing data into and reading data out of electronic tags which may be attached to moving and moveable objects. An interrogator sends an RF signal to a remote tag, the signal including data intended to be received and stored in the tag.  The tag backscatter-modulates the received signal with data temporarily and permanently stored in the tag, including data indicating the identity of the object to which the tag is attached. The interrogator has the capability of (1) recognizing the identity of the tagged abject from the returned backscatter-modulated signal and (2) transmitting data to the tag only if it has data to be transmitted to that particular tagged object.      This permits data to be selectively transmitted to a tag and received and stored by that tag only after the tag has been identified as a correct one to receive that data. The tag, in addition, may have the capability of increasing its sensitivity to the receipt of transmitted data after receiving a signal from the interrogator of sufficient strength to be capable of transmitting data to that tag.
Patent CA-2035324-A1 (CA)
Title: Safety base for scaffolding
Inventor: WYSE STEVEN J
IPC: E04G1/24
Filed: 1991-01-30
Abstract: ABSTRACT OF THE DISCLOSURE     A safety base is provided for a scaffold,  The scaffold has casters so that it can be moved periodically at the job site.  The safety base has two components, each consisting of an elongate bar with adjustable safety legs near the ends, along with detachable locks for readily attaching the component to frame members of the scaffolding,  Feet of the legs are positioned near the supporting surface so that if the casters encounter a depression as the scaffold is being moved, the feet will engage the surface and the scaffold will not tilt excessively.
Patent CA-2035627-A1 (CA)
Title: Miner cutting bit holding apparatus
Inventor: O'NEILL MICHAEL L
IPC: E21C35/19
Filed: 1991-02-04
Abstract: ABSTRACT OF THE DISCLOSURE Apparatus for supporting a cutting bit having an extended shank on a rotatable cutting drum is provided.  The support apparatus includes a bit holder having an upper body portion and a shank portion and a generally rectangular mounting base having rear, side and front members.  The upper body of the bit holder includes a bore for receiving the cutting bit shank and upper rear abutment surfaces perpendicular to the bit axis. The shank of the bit holder has a lower rear abutment surface having horizontal and vertical areas and a threaded bore which extends into the shank intermediate the upper and lower abutment surfaces.  The rear portion of the mounting base includes upper abutment surfaces perpendicular to the bit axis and a lower abutment surface having horizontal and vertical areas.  A draw bolt passes through the rear portion of the mounting base and serves to draw the upper and lower abutment surfaces of the bit holder and mounting base, respectively, into engagement.
Patent CA-2040244-A1 (CA)
Title: Shoe heel spring and stabilizer plate
Inventor: CLAVERIA RIC Y
IPC: A43B21/30
Filed: 1991-04-11
Abstract: A thin, heel-sized plate formed of a composite sandwich of thermoplastic resin and carbon-glass fiber cloth has a pair of upwardly-flanged lateral edges, front and rear ends, and an integral, rearwardly-extending, upwardly-inclined, vertically-acting spring member appending from it.          The device is encapsulated within the resilient material of the heel portion of the midsole of an athletic shoe such that the spring member is disposed below the calcaneus of the wearer's foot.  The midsole is relieved in an area below the spring member to permit it to bend downward freely in response to heel-imparted forces.  A "snubber" or stopper bushing can be molded into the outsole of the shoe to limit the maximum deflection of the spring member.
Patent CA-2040454-A1 (CA)
Inventor: NICOL PASCAL
IPC: C08F2/04
Filed: 1991-04-15
Abstract: Process for the manufacture of block copolymers, consisting in polymerising anionically in a solvent medium in a first stage a hydrocarbon vinylaromatic monomer and, in a second stage, a conjugated diene, characterised in that, in the first stage, the hydrocarbon vinylaromatic monomer is polymerised in solution in an aromatic hydrocarbon solvent until a homogeneous mixture is obtained with a viscosity higher than 300 Pa s at 20 DEG C at a polymer concentration of between 60 and 90 % by weight in the aromatic hydrocarbon solvent and in that, in a second stage, after introduction of conjugate diene, copolymerization is performed until a homogeneous mixture is obtained with a viscosity higher than 300 Pa s at 90 DEG C at a copolymer concentration of between 70 and 90 % by weight in the hydrocarbon aromatic solvent, without the viscosity exceeding 3,000 Pa s in the two stages.
Patent CA-2043150-A1 (CA)
Title: Water-soluble colored pigments from monascorubrin and rubropunctatin as food colorants
Inventor: ST MARTIN EDWARD J
IPC: A23L1/275
Filed: 1991-05-23
Abstract: "WATER-SOLUBLE COLORED PIGMENTS FROM MONASCORUBRIN       AND RUBROPUNCTATIN AS FOOD COLORANTS"   The orange, WATER-INSOLUBLE pigments monascorubrin and rubropunctatin elaborated by Monascus species can be converted to high purity red, water-soluble pigments by reaction with stoichiometric quantities of organic materials bearing a primary amine functionality or to high purity yellow, water-soluble pigments by reaction with stoichiometric quantities of organic materials having a primary amine functionality followed by reduction of the ring carbonyl moiety to a hydroxyl group. These red pigments are suitable as colorants for a broad variety of edible formulations, especially those intended for human consumption, and often serve as suitable replacements for FD&C Red No. 2 and Red No. 4.  The yellow pigments aredesirable food colorants which are effective at levels which impart no objectional taste to foods.
Patent CA-2043280-A1 (CA)
Title: Process for the preparation of 10-(2-propynyl)estr-4-ene-3,17-dione
Inventor: WHITTEN JEFFREY P
IPC: C07J21/00
Filed: 1991-05-24
Abstract: ABSTRACT OF THE DISCLOSURE   This invention relates to a process for the preparation of 10-(2-propynyl)-estr-4-ene-3,17-dione, whereby this compound is synthesized utilizing ketals prepared from the addition of 2,2-dimethyl-1,3-propanediol to the starting compound, 19-norandrost-5(10)-ene-3,17-dione (NAD).  A new process for the addition of the propynyl group to steroid epoxides by means of higher order cuprates is also described herein.
Patent CA-2045478-A1 (CA)
Inventor: SOTO JOSE M P
IPC: A61K9/02
Filed: 1990-12-27
Abstract: Xanthines of general formula (I), wherein R1 represents a straight or branched chain alkyl, alkenyl or alkynyl group of 3-6 carbon atoms, and R2 and R3, which may be the same or different, each represent hydrogen or halogen or a methyl, methoxy. nitro or trifluoromethyl group or R2 and R3 together form a methylenedioxy or ethylenedioxy group; with the proviso that R2 and R3 are not both hydrogen; and pharmacologically acceptable salts thereof with an alkali metal base or a nitrogen base containing organic base, are bronchodilators making them of value in treating asthma and vasodilators making them of interest in treating angina, hypertension, congestive heart failure and multi-infarct dementia. The compounds are also of use in combatting other conditions where inhibition of PDE type IV is thought to be beneficial. The compounds can be prepared by treating the corresponding 6-amino uracil with sodium nitrite and formic acid in an excess of formamide and adding sodium dithionate to reduce the resulting 6-amino-5-nitroso compound to give the 5,6-diamino compound that ring closes with the excess of formamide.
Patent CA-2045952-A1 (CA)
Title: Use of edible oil for flavouring foodstuffs
Inventor: HARING PETRUS G M
IPC: A23L27/20
Filed: 1991-06-28
Abstract: Abstract The invention relates to the use of an unrefined edible oil for flavouring foodstuffs. The unrefined edible oil contains at least 10 ppm of C6-C20 lactones and is preferably based on a lauric fat, in particular coconut oil. The edible oil is obtained in such a way that is has a relatively low level of free fatty acids and a relatively high content of lactones, especially C8-C12 lactones. The weight ratio between lactones and free fatty acids is at least 1:100 and preferably at least 1:10.          The  use  of  such  unrefined edible  oils  is  particularly advantageous for flavouring butter-like foodstuffs and other foodstuffs associated with fats, such as spreads.
Patent CA-2049814-A1 (CA)
Title: Pressure responsive unidirectional valve
Inventor: TAILLEFER LOUIS
IPC: F16K15/00
Filed: 1991-08-23
Abstract: ABSTRACT OF THE DISCLOSURE             A  pressure  responsive   unidirectional valve for  obturating an  outlet opening  of a  fluid conducting   duct  comprises   an  obturating  member mounted  on said  duct and  movable  between a  first position  in which  it  substantially  obturates said outlet  opening and  a second  position  in which  it substantially  opens  said  outlet   opening.     The obturating  member is formed with  an up-stream face to  which the fluid pressure in said  duct is applied and a down-stream face.  The  valve further comprises locking means  including a first part mounted on said obturating member and  a second part mounted on  said duct, said first  and second  parts being  attachable to each other, when  the obturating member  is in its first position, with a strength sufficient to  retain said obturating member in its first  position as long as the  difference between the fluid pressure in said duct  and any  pressure applied  to  said down-stream face  is  lower than  a given  threshold value.   The first  and second  parts  of  the locking  means  are detached  from   each   other   when   the   pressure difference oversteps said  threshold value to release the obturating  member which then moves to its second position and substantially  opens the outlet opening, leaving    a  negligible  resistance  to  fluid  flow across the valve.  The locking means may be magnetic or  mechanic. The valve  may comprise  means to reset it in the first position after tripping.
Patent CA-2050718-A1 (CA)
Title: Drawing assembly for a shearing table
Inventor: DEL FABRO GIORGIO
IPC: B21D43/28
Filed: 1991-09-05
Abstract: ABSTRACT Drawing assembly  (10)  for a shearing bench,  which is suitable to feed and position at least one section in a shearing bench consisting of two shears  (11-12)  located respectively upstream and downstream of the drawing assembly (10),  which comprises upper  (18)  and lower  (19)  rotary facing units, the upper unit (18) consisting of an endless chain (20) bearing a plurality of supports (21) to which are anchored thrust elements (22) arranged in a direction normal to the  endless  chain  (20),  while  the  lower unit  (19) consists of an endless chain  (23)  bearing a plurality of supports (29) to which are secured partition elements (25), which are suitable to contain one or more sections in a substantially vertical direction and form a plurality of compartments  (26)  normal to the endless chain  (20)  and cooperating directly with the thrust elements  (22)  being inserted into the compartments  (26)  so  as to clamp the sections arranged therein,  the direction of feed of-the units (18-19) being two-way.
Patent CA-2052940-A1 (CA)
Title: Product-level viewer
Inventor: OTTALAGANA VALERIE J
IPC: B65D25/56
Filed: 1991-10-08
Abstract: In an opaque plastic container that dispenses a solid product outward from the bottom, as used for stick deodour-ant/anti-perspirant, there is no obvious method to indicate to the user the level of product remaining in the container.          In this invention, a transparent plastic window is incor-porated near the top of, and on the back of, the plastic container.  When the product is raised out of the container by means of turning a dial or wheel on the bottom of the container, or by manipulating another such device for use of the same, the level of product can be viewed once the product and the plastic apparatus that supports the product inside the container have been raised to the point of the transparent plastic window.  The user then knows the level of product remaining inside the container.
Patent CA-2053499-A1 (CA)
Title: Toddler switch
Inventor: SQUIRE DOUGLAS G
IPC: H01H25/00
Filed: 1991-10-15
Abstract: LIGHT SWITCH EXTENSION DEVICE FOR TODDLERS     ABSRACT            An extension device for a wall-mounted light switch to allow operation of the light switch by a toddler or another who is unable to reach the light switch.
Patent CA-2057403-A1 (CA)
Title: Apparatus and method for a space saving translation lookaside buffer for content addressable memory
Inventor: MEHRING PETER A
IPC: G06F12/10
Filed: 1991-12-11
Abstract: A method and apparatus for saving memory space in a buffer whereby the valid bit in the entry of the translation lookaside buffer for a cache memory is collapsed into one of the level bits indicating the length of the virtual address. During the lookup of the translation lookaside buffer, the virtual address in each entry is compared with the virtual address from the CPU if the level/valid bit is set, i.e. the entry is valid. If the level/valid bit is not set, then no compare takes place and the lookup continues to the next entry. The length of the virtual address to be compared is further determined by the status of the remaining level bits.
Patent CA-2057593-A1 (CA)
Title: Pest control device
Inventor: CIARLETTA JOHN A
IPC: A01M1/20
Filed: 1991-12-13
Abstract: A device composed of a housing assembly having a passage or channels which form a passage when the housing assembly is in its closed position. The inner surface of the passage is treated with an appropriate insecticide in powder, dust or slurry form which will adhere to the passage wall surface. The passage of the housing assembly has an outer diameter of at least about 0.6 cm. The passage is dark. In a preferred embodiment, the passageway is arcuate and the passage walls are scored or ridged.
Patent CA-2058335-A1 (CA)
Inventor: CLARK WILLIAM G JR
IPC: B29C65/42
Filed: 1991-12-23
Abstract: Both a system and method are provided for remotely heating a polymeric material to a selected temperature.      The system generally comprises particulate ferro-magnetic material dispersed throughout the polymeric material to form a composite, wherein the particulate material has a Curie temperature that corresponds to the selected heating temperature, and a source of microwave energy for remotely applying a beam of microwave energy to the polymeric composite material.      Preferably, the particulate ferromagnetic material comprises only about 2 percent of the total composite by weight. The polymeric material may be compliant, thermosettable plastic, and the Curie temperature of the particulate ferromagnetic material dispersed therein may advantageously be above the curing temperature of the polymer, such that the beam from the source of microwave energy may be used to remotely join surfaces or construct joints in composite structures.      Alternatively, the polymeric material may be a meltable plastic, and the Curie temperature of the particulate ferromagnetic material may be chosen to be above the temperature of fusion of the polymer to create a polymeric composite which is magnetically separable from other polymers within a solid waste facility, and which may be melted down for recycling purposes. In a variation of this embodiment, a heat actuatable degradation chemical may be dispersed through the polymeric material along with the ferro-magnetic material to create a plastic composite which is selectively degradable by the remote application of microwave energy.
Patent CA-2059421-A1 (CA)
Title: Bone acting agents
Inventor: SAARI WALFRED S
IPC: C07J1/00
Filed: 1992-01-15
Abstract: TITLE OF THE INVENTION NOVEL BONE ACTING AGENTS            ABSTRACT OF THE INVENTION         Described are new agents for treating bone disorders associated with a reduction in bone mass and abnormalities in bone resorption or bone formation including osteoporosis, Paget's disease, bone metastases and malignant hypercalcemia.  The agents are hydroxyl containing steroidal hormones, having bone resorption antagonist or bone formation stimulatory activity, covalently linked through the hydroxyl group via a bond hydrolyzable in the human body, e.g. carbamate or carbonate, which is further covalently linked to an amino, or hydroxy substituted 36/RJN18                -i-          18258 alkylidene-1,1-bisphosphonate, through the respective amino or hydroxy group.  The alkyl bisphosphonate moiety confers bone affinity.  The agent acts by delivering the steroidal hormone directly to the bone target site where it is released for bone resorption antagonist or bone formation stimulatory action by hydrolysis of the hydrolyzable covalent bond.
Patent CA-2059708-A1 (CA)
Title: Indole derivatives
Inventor: BOTTCHER HENNING
IPC: A61P25/20
Filed: 1992-01-20
Abstract: Indole derivatives of formula I   (see formula I) wherein Ind is a particularly substituted indol-3-yl radical, Q is C n H2n where n is 1, 2, 3, 4, 5 or 6, and Ar is a substituted or unsubstituted phenyl radical, and their salts, are active on the central nervous system.
Patent CA-2064759-A1 (CA)
Inventor: LANGOS PETER
IPC: B29C48/475
Filed: 1991-05-28
Abstract: PCT No. PCT/EP91/00984 Sec. 371 Date Mar. 30, 1992 Sec. 102(e) Date Mar. 30, 1992 PCT Filed May 28, 1991 PCT Pub. No. WO91/18731 PCT Pub. Date Dec. 12, 1991.The invention relates to a storage head for a blow moulding machine for discontinuous manufacture of multi-layer co-extruded and blow-moulded hollow bodies made of thermoplastic. To improve the product quality and to increase the throughput, each distributor element is designed as a spiral channel distributor (20) which distributes the individual molten plastic streams uniformly at the periphery. The ejector (14) consists of at least two concentric tubular pieces (42, 44, 46) and the peripherally distributed plastic streams issue from the front face of the ejector (14) and unite to form a single multi-layer flexible plastic tube in the storage space (16) in the storage head housing (10) below the ejector.
Patent CA-2067034-A1 (CA)
Title: Instrument and method for viscoelasticity measurements
Inventor: MATHEWS MICHAEL
IPC: G01N19/00
Filed: 1992-04-24
Abstract: The invention elates to an instrument for measuring the viscoelastic properties of rubber and like materials comprising two opposed dies,(11) and (12), each die having a die housing (13), (14), the dies and housings being moveable between an open position and a closed position, and wherein: a) each die is separated from its housing by a substantially uniform circumferential gap (20, (21) such that the die is rotatable relative to its housing, and one die is rotatable relative to the other, b) in the closed position, the two dies define between them a cavity (15) for holding under pressure a sample of material to be tested, (c) the design of the dies and housings is such that during movement from the open position to the closed position, a sample of test material located between the dies (11), (12) is compressed so that excess material is extruded radially from between the dies, across the gap (20), (21) between 15 each die and its housing and through a narrowing space (16) separating the housings until the two housings (13), (14) reach their closed position, in which position the said space (16) is sealed. In prior art instruments, at least one annular seal (5) of heat-resistant elastomeric material is positioned between each die (1), (2) and its housing (3), (4) to ensure that a sample of material in the die cavity (6) is maintained under pressure during a test. In the instrument of the present invention, no such seal is required. The radial dimension of the gap (20), (21) between each die and its housing is significantly less than in prior art instruments, and sheets of film (18), (19) of heat and distortion-resistant material are used to bridge the gaps (20), (21).