baber/WOPTO huggingface dataset:
Patent CA-1283594-C (CA)
Title: Double stage taumel gear reduction unit
Inventor: KERSHAW PETER
IPC: B60N2/225
Filed: 1987-09-01
Granted: 1991-04-30
Abstract: ABSTRACT             A modular taumel reduction device having a housing having internally positioned integrally formed teeth in one embodiment, further containing therewithin at least two concentric planetary gears in communication with each other which rotate and wobble individually within the housing and reduce the input from a preferably flat motor to, in one embodiment, a seat back.
Patent CA-1284955-C (CA)
Title: Electrical ignition device for regeneration of a particulate trap
Inventor: RAO VEMULAPALLI D N
IPC: F01N3/032
Filed: 1987-09-21
Granted: 1991-06-18
Abstract: Abstract of the Disclosure An ignition system is disclosed for regenerating a particulate trap (40-400 cells per lineal inch) used to filter the exhaust gas of an internal combustion engine, the particulate trap having an entrance face for receiving a gaseous flow therethrough.  The system comprises: (a) flow guide means effective to direct a gaseous flow to such entrance face during filtration and during regeneration of the trap; (b) an open cell ceramic foam body (10-30) cells per lineal inch) extending across such flow guide means and having (i) a radially outer ring exit surface in contact with the radially outer portion of the entrance face, and (ii) an entrance throat remote from the particulate trap, the open cell foam body being effective to siphon off an ignitable collection of particulates from the exhaust gas during filtration; and (c) electrically energized resistance heating means stationed in a radially central portion of the open cell body adjacent to the entrance throat effective to heat the body during regeneration to a temperature effective to ignite the ignitable collection.         The foam body is preferably shaped in a frustro conical configuration having a neck to for said entrance throat at one end and an opposite end having a base perimeter defining the outer periphery of the ring surface; the neck of the foam body preferably has cast-in-place therein electrical resistance heating wires; the cross-sectional area of the neck is no greater than 20% of the cross-sectional area of the trap entrance face.
Patent CA-1314354-C (CA)
Title: Encapsulating compositions
Inventor: HARRIS STEPHEN J
IPC: C08K5/20
Filed: 1987-09-29
Granted: 1993-03-09
Abstract: ABSTRACT OF THE DISCLOSURE       An encapsulating composition for electronic devices which comprises a polymeric material and a metal ion scavenger selected from A)    Calixarene or oxacalixarene derivatives represented by the formula   wherein m'+ m" = 0 - 8 n = 0 - 8 m' ? 1/2 (m' + m") 3 ? m' + m" + n ? 8 if n = 0, m' ? m" ? 4 R3 is H, halogen, or hydrocarbyl, aryl, hydrocarbylaryl or a substituted derivative thereof, and R3 may be the same or different on each aryl group; R4 is hydrocarbyl, aryl, hydrocarbylaryl, hydrocarbyloxy, aryloxy, or hydrocarbylaryloxy, or a substituted derivative thereof; or R  is   wherein R5 and R6 which may be the same or different are H, or hydrocarbyl, aryl, hydrocarbylaryl, or a substituted derivative thereof; R15 is H or hydrocarbyl, aryl, hydrocarbylaryl or a substituted derivative thereof; the calixarene or oxacalixarene derivative being present as a compound per se or being bound into the polymer network of the polymeric material;     B)    Silacrowns represented by the formula III                    wherein R7 and R8 which may be the same or different are hydrocarbyl, aryl, hydrocarbylaryl, hydrocarbyloxy, aryloxy, hydrocarbylaryloxy, or a nitrogen-substituted or other substituted derivative thereof; z is 3 - 6 C)    Polyalkylene ether glycols and ether derivatives thereof represented by the formula IV, V, VI or VII below:             IV    R9-(R10-0)q-R11 wherein q is an integer of from 2 to 3000; R10 is a substituted or unsubstituted alkyl residue having 2 to 6 carbon atoms, the (R10-0) groups containing the same alkyl residue or containing 2 or more different alkyl residues which may be distributed on the chain in a random or block manner; R11 is hydrogen, hydrocarbyl, aryl, hydrocarbylaryl, or a substituted derivative thereof; R9 is hydroxy, hydrocarbyloxy, aryloxy, hydrocarbylaryloxy or a substituted derivative thereof;     V             wherein R12 is -(R10-0)q-R11 in which R10, R11 and q  are as defined above;     VI                   wherein R12 is as defined above; R13 is hydrogen, halogen, or hydrocarbyl, aryl or hydrocarbylaryl or a substituted derivative thereof; and x is an integer from 4 to 8;            VII        wherein R10, R11 and q are as defined above.
Patent CA-1301534-C (CA)
Title: Gate-controlled support forming ramp for bale discharged from round baler
Inventor: GUNTHER DANIEL
IPC: A01F15/08
Filed: 1987-10-05
Granted: 1992-05-26
Abstract: GATE-CONTROLLED SUPPORT FORMING RAMP FOR BALE DISCHARGED FROM ROUND BALER      Abstract of the Disclosure A baling machine for forming large cylindrical bales of hay has a gate which can be raised to an open position for enabling a completed bale to pass under it for discharge.  Upon initial opening of the gate, the bale initially rests on a horizontal support which is connected by a cable and link to the gate.  On the gate being raised further, the moving gate pulls the support via the cable and link so that it swings downwardly in a rearward direction to form a discharge ramp along which the bale may roll onto the ground and beneath the gate.    The arrangement is such, however, that in hilly terrain the gate can be opened initially to an intermediate position corresponding to an intermediate swinging position of the support so that the bale runs down the support and either lodges against the gate before or after it contacts the ground.  On either event the gate stops the bale from rolling.  The gate is then raised further and the machine driven away Prom the bale which therefore does not have unwanted momentum derived from rolling down the support which would increase the tendency of the bale to roll too far over the sloping ground.
Patent CA-1290985-C (CA)
Title: Steered axle for a railway vehicle
Inventor: SMITH ROY E
IPC: B61F5/44
Filed: 1987-10-07
Granted: 1991-10-22
Abstract: ABSTRACT OF THE DISCLOSURE          An axle for a rail vehicle is pivotally connected to  two  equal  length  swinging  arms,  each  of  which  is pivotally connected to the rail vehicle.   The axle rotates about a virtual vertical axis away from the axle and nearer to the centre of the rail vehicle.  The axle is then radial for all curves over which a rail  vehicle would usuallly traverse.   In addition,  the overhang of the rail vehicle while traversing a curve is reduced since the rail vehicle chords between virtual axes.
Patent CA-1275176-C (CA)
Title: Cooling air manifold for a gas turbine engine
Inventor: BARAN WALTER J JR
IPC: F01D5/08
Filed: 1987-10-28
Granted: 1990-10-16
Abstract: ABSTRACT      COOLING AIR MANIFOLD FOR A GAS TURBINE ENGINE     A manifold (20) includes a plurality of separate, identical flow channels (28) separated by flow dividers (46).  The flow dividers (46) include a thickened boss section (54) for receiving a mounting bolt (50), and are skewed adjacent the manifold outlet for forming a plurality of tangentially directed nozzles (18).
Patent CA-1294221-C (CA)
Title: Hearing aid ear piece having disposable, compressible  polymeric foam sleeve
Inventor: AHLBERG CARL S
IPC: H04R25/00
Filed: 1987-11-06
Granted: 1992-01-14
Abstract: Abstract of the Disclosure Detachably secured to the ear piece (11) of a hearing aid is a user-disposable sleeve (13) comprising soft polymeric retarded recovery foam (14) that can be compressed to be freely insertable into a person's ear canal and then allowed to recover to become wedged in the canal.  The sleeve preferably includes a flexible, elongated plastic duct (16) over which the foam fits, and the duct is formed with a screw thread of a rigid plastic which mates with a screw thread on the ear piece for each attachment and removal.  The external surface of the foam preferably is substantially cylindrical and can be formed with flutes (26) to provide venting of the user's ear.
Patent CA-1292095-C (CA)
Title: Manual recycler for detonating impact tool
Inventor: ADAMS JOSEPH S
IPC: B25C1/10
Filed: 1988-01-06
Granted: 1991-11-19
Abstract: TITLE     MANUAL RECYCLER FOR DETONATING IMPACT TOOL            ABSTRACT         A detonating impact tool 10 has a manual recycler that works by manually pressing the tool and a fastener  25 against  a work piece 51 to push a front housing 12 into a main housing 11 against a compression  spring  30.   This charges a detonation chamber 15 with a fuel and air mixture that  is  precompressed and detonated to drive a piston 20 and its impact rod 22 forward, driving the  fastener  into the  work  piece.  On completion of its impact stroke, the piston clears an exhaust port 31, allowing  exhaust  gases to  escape  through an exhaust passageway 32.  Following this, purging air rushes in through inlet 27 as the exhaust gases collapse; and as the tool is retracted from the  work piece,  pumping  seal  26  draws  purging, cooling, and recharging air into detonation chamber 15 as front  housing 12 is returned to its forward position by the spring.
Patent CA-1300182-C (CA)
Title: Apparatus and method for effecting movement of selected tiers of stacked articles using pressure differentials
Inventor: PEARCE RONALD A
IPC: B65G59/04
Filed: 1988-01-21
Granted: 1992-05-05
Abstract: APPARATUS AND METHOD FOR EFFECTING        MOVEMENT OF SELECTED TIERS OF STACKED        ARTICLES USING PRESSURE DIFFERENTIALS             Abstract of the Disclosure Apparatus and method are disclosed for relative movement between stacked articles and a reference surface upon which the articles are stacked.  Some, or all, independently movable layers, or tiers, of the stack of articles are received by a suspending device that includes a partial enclosure connected with a high pressure air pump capable of reducing the fluid pressure to establish a pressure differential within the partial enclosure.  The partial enclosure has flexible sealing strips extending from, and coextensive with, the bottom edge of movable sections of the partial enclosure, and the sealing strips are positioned adjacent to the lowest tier to be acted upon by the suspending device.
Patent CA-1292129-C (CA)
Title: Meter proving method and apparatus
Inventor: HANSON GLEN E
IPC: G01F25/00
Filed: 1988-02-22
Granted: 1991-11-19
Abstract: METER PROVING METHOD AND APPARATUS     ABSTRACT    The invention relates to improved methods of proving calibration of meters, such as oil and water meters used in measuring fluid output of a producing oil well prior to the fluid reaching a stock tank.  The method generally involves connecting a prover vessel, having an accurate volume reading split-sight-glass arrangement, downstream of the meter to be tested, introducing a first volume of fluid into the prover vessel, degassing the fluid and pressurizing the vessel 80 as to establish a baseline reading.  A preselected volume of fluid as registered by the meter is then introduced into the vessel, degassing and pressurizing are repeated and a second volume reading is obtained.  The volume represented by the difference between the second and first volumes read at the prover vessel is divided by the volume registered by the meter to obtain a factor by which a meter reading may be multiplied to derive the true volume of fluid passing thereby.  The volumes recorded may be temperature corrected to 15°C before the dividing step.  The prover vessel may be portable 90 that it can be taken from well to well by n prover crew.
Patent CA-1296260-C (CA)
Inventor: BERNARD BRUNO
IPC: C12N5/00
Filed: 1988-03-08
Granted: 1992-02-25
Abstract: The method for obtaining a skin equivalent (27) involves preparing a dermis equivalent (24) by mixing contractile cells, a nutrient medium and collagen so as to form a gel which contracts; using this dermis equivalent (24) as a substrate for an epidermis equivalent (26) obtained by sowing with the keratinocytes from an animal or human explant. According to the invention, the substrate (24) is sown with at least one section of a hair follicle (22) comprising at least partially its cellular sheath, the said section being implanted substantially perpendicular to the free surface of the substrate. <IMAGE>
Patent CA-1327120-C (CA)
Inventor: SASAKI NOBORU
IPC: B21F33/04
Filed: 1988-04-19
Granted: 1994-02-22
Abstract: Abstract of the Disclosure An apparatus for manufacturing a spring unit used for mattresses and the like is provided with a first unit for forming coiled springs sequentially out of a single wire and shaping the spring wires by arranging these coiled springs in a lateral row so that side limbs of the coiled springs are adjacent to each other, and a second unit extending across the spring wires and adapted to shape helical wires wound around the side arms of the spring wires so that the helical wires extend across the side limbs.  The second unit is provided with a helical wire shaping device which includes a feeding mechanism and another mechanism for forming the straight wire fed from the feeding mechanism into the helical wires and a third mechanism for adjusting a pitch of the helical wires.  The second unit is also provided with a device for supplying the helical wires while measuring and controlling the length of the helical wires in such a manner that this length substantially agrees with the width of the spring wires.  Also, an end former is disposed so that it can be positioned freely in the widthwise direction of the spring wires.  The end former is adapted to cut the end portion of the helical wire.
Patent CA-1337487-C (CA)
Title: Closure for container and method and apparatus for forming the closure
Inventor: THOMPSON MORTIMER STAFFORD
IPC: B65D41/04
Filed: 1988-06-16
Granted: 1995-10-31
Abstract: A cap for a container having a depending wall with a free end adapted to constantly urge engaging means of the cap and the container together upon engagement therebetween.  Preferably, the free end of the cap has low hoop stress when axially compressed to provide spring means which perform the required function.  In forming the cap, preferably one end is attached at the top wall of the cap, its other end is free to move relative to the cap and a substantial horizontal intermediate element is provided therebetween. In use, the free end has a bearing surface at or beyond the horizontal element thereof.
Patent CA-1276471-C (CA)
Title: Process and lance for the production of a bath of molten metal or alloys
Inventor: LUTGEN NOEL
IPC: F27D99/00
Filed: 1988-07-22
Granted: 1990-11-20
Abstract: ABSTRACT OF THE DISCLOSURE           Liquid argon, nitrogen or carbon dioxide is poured onto the surface of a bath of molten metal in a furnace.          According to the invention, liquefied gas is discharged onto the surface in an amount which ranges from about 0.025 to 0.100 lb/cu.in. of metal in the furnace, or 0.01 to 0.05 lb per minute per square inch of exposed metal surface area in the furnace, while a skirt is preferably set around the open end of said furnace.  Oxygen concentration above the bath remains lower than about 3.0%, while hydrogen and nitrogen pick up are reduced.
Patent CA-1335637-C (CA)
Title: Process and means for making metal inking rolls, particularly for flexographic printing, with highly hardened superficially engraved layer, and rolls obtained with such process and means
Inventor: DELLA TORRE RENATO
IPC: C21D9/38
Filed: 1988-08-18
Granted: 1995-05-23
Abstract: A process for making metal inking rolls, particularly for flexographic printing, comprises: at least the selection of an ammonia hardenable material, particularly stainless, to provide the roll structure, the selection of a structure wherein the minimum thickness of the wall, when tubular, is a direct function of diameter and inverse function of the length, whereby, when supported at the ends and stressed in the middle, on a surface relatively distributed, may be permanently distorted in the axial attitude instead than transversely or at the cross- section; at least a post-engraving treatment to increase the surface hardness of the screen to at least 60 HRC and at least a final straightening step, to reduce the screen eccentricity at least to 0,02 mm.
Patent CA-1313565-C (CA)
Title: Bandwidth enhancing seismic acquisition system and method
Inventor: CARROLL PAUL E
IPC: G01V1/36
Filed: 1988-09-26
Granted: 1993-02-09
Abstract: BANDWIDTH ENHANCING SEISMIC ACQUISITION SYSTEM AND METHOD                       ABSTRACT      An  improved  geophysical  data  acquisition  system  is disclosed for enhancing effective system bandwidth of a seismic signal having an amplitude frequency spectrum characterized by high  amplitude  low  frequencies  and  low  amplitude  high frequencies.   A low-cut filter  (35)  is provided which has a frequency  response  with  its  low  frequency  end  attenuation limited.  The low-cut filter (35) has the effect of increasing effective channel bandwidth while simultaneously allowing low frequency signals from deep within the earth to be included in the output signal.   Effective channel bandwidth is increased because   low   frequency   seismic   signals   are   attenuated, automatically allowing channel gain to be increased by a gain ranging  amplifier.    Increased  channel  gain  automatically amplifies the low-amplitude high-frequency end of the spectrum resulting in increased effective bandwidth.  A high frequency boost filter (30) is provided whereby the high frequency signal components of the seismic signals may be further relatively amplified thereby enhancing the channel effective bandwidth. The boost filter (30) is provided in the system's input stage in order to keep its effect on system input noise to a minimum.
Patent CA-1314279-C (CA)
Title: Polymeric viscosity index improver and oil composition comprising the same
Inventor: OLSON DANFORD H
IPC: C10M143/12
Filed: 1988-10-07
Granted: 1993-03-09
Abstract: POLYMERIC VISCOSITY INDEX IMPROVER AND OIL      COMPOSITION COMPRISING THE SAME            Abstract of the Disclosure A triblock copolymer VI improver comprising two terminal hydrogenated polyisoprene blocks and a central polymeric block containing predominantly monoalkenyl aromatic hydrocarbon monomer units.  Oil compositions comprising such triblock copolymer VI improvers exhibit a good balance between thickening efficiency and mechanical shear stability combined with relatively high HTHSR viscosities.
Patent CA-1338572-C (CA)
Title: Amino acid esters, process for the preparation thereof and use thereof
Inventor: KLESSING KLAUS
IPC: C07D307/60
Filed: 1988-11-04
Granted: 1996-09-03
Abstract: Novel esters of amino acids are proposed of which the alcoholic components are formed from threo-4-alkoxy-5-arylhydroxymethyl-2(5H)-furanones.  These esters may be present in the form of racemates, pure diastereomers or enantiomers or in the form of diastereomer or enantiomer mixtures.  The compounds are anticonvulsive and antiepilep-tic and due to their good water solubility are easier to administer and more readily absorbable than known anti-convulsives and antiepileptics.  A novel process is also disclosed which leads stereoselectively to the diastereomers or the enantiomers or mixtures thereof.  The invention further relates to the use of the novel amino acid esters as pharmaceutical preparations and in the production of pharmaceutical preparations.
Patent CA-1295862-C (CA)
Title: Apparatus and method for automated braiding of square rope and rope product produced thereby
Inventor: SMITH MICHAEL F
IPC: D04C1/12
Filed: 1988-11-15
Granted: 1992-02-18
Abstract: ABSTRACT OF THE DISCLOSURE      An apparatus automatically braids a plurality of rope forming strands onto a center core member in a braiding pattern that causes the resulting rope to have a generally square shaped cross section.  The braiding extends are fed to a braiding point on the center core member from a plurality of eight strand feed assemblies which are transported on a mechanism in two distinct but crossing orbits that encircle the center core member.  The constituent strands are themselves formed by prebraided or pretwisted substrands or filaments to cause the resulting rope to exhibit pronounced ribs along the corners of the square cross section for a secure hand-to-rope grip.
Patent CA-1330916-C (CA)
Title: Cellulosic fiber- and chitosan-based composite material and a method for the preparation thereof
Inventor: HOSOKAWA JUN
IPC: D21H17/14
Filed: 1989-01-03
Granted: 1994-07-26
Abstract: ABSTRACT OF THE DISCLOSURE       CELLULOSIC FIBER- AND CHITOSAN-BASED COMPOSITE MATERIAL AND A METHOD FOR THE PREPARTION THREREOF      The composite material of the invention is a sheet of cellulose fibers impregnated with chitosan of at least 40% deacetylation and further impregnated with a higher fatty acid such as stearic acid by treating with an organic solu-tion thereof.  Different from conventional paper and films of plastic resins, the composite sheet of the invention has a high strength even in a wet condition and still is biode-gradable, for example, in wet soils to cause no problems of environmental pollution by the waste thereof left in envi-ronments.  Therefore, the composite sheet of the invention is useful as a wrapping material of foods, sheet materials for agricultural uses and other temporary or seasonal uses.
Patent CA-1318100-C (CA)
Title: Means for erecting a wall of wall blocks, preferably of glass
Inventor: SCHWARZ WILLI
IPC: E04C1/42
Filed: 1989-03-10
Granted: 1993-05-25
Abstract: ABSTRACT       MEANS FOR ERECTING A WALL OF WALL BLOCKS, PREFERABLY OF GLASS         Means for erecting a wall of preferably disc-like wall blocks, particularly glass blocks, having marginal support portions adjacent the wall surfaces limiting the bearing sides of the blocks, an offset surface being located be-tween the support portions.  A flat strip is located be-tween the offset surfaces of superimposed or adjacent wall blocks which is made of preferably of tension material. Support pieces are connected to the flat strip or are integrally formed therewith, the support pieces having a suitable support section adapted to be located between superimposed or adjacent support portions.
Patent CA-1330740-C (CA)
Inventor: DAMRAU WAYNE A
IPC: D21H23/36
Filed: 1989-03-22
Granted: 1994-07-19
Abstract: HIGH SPEED PAPER CRATERS            Abstract of the Disclosure A coater for applying liquid coating material onto paper web carried across an upstream dip roll applicator that applies an excess layer of coating onto the surface of the web, is characterized by an improved downstream doctor assembly for metering and leveling the coating on the web.  The doctor assembly includes a doctor blade having a tip extended against and across the web, and a shear plate just upstream of the blade. The shear plate has a surface facing toward but spaced from the web and a ramp on the surface extending toward the web.  As the coating layer on the web contacts the doctor blade, excess coating removed from the web by the blade bounces back off of the blade, flows across the shear plate surface and is deflected by the ramp against the web to react the excess coating layer on the web before it reaches the blade.  The energy of the rewetting flow is sufficient to smooth and eliminate film split or streaking patterns that occur in excess coating applied with a dip roll applicator, so that there is a much more uniform coating on the resulting paper sheet.
Patent CA-1315724-C (CA)
Title: Immobilized ftf enzymes
Inventor: UCHIYAMA TAKAO
IPC: C12N11/08
Filed: 1989-04-05
Granted: 1993-04-06
Abstract: ABSTRACT OF THE DISCLOSURE      Disclosed herein is an immobilized enzyme inulin-D-fructotransferase carried in a specific anionic exchange resin with pores having a mode radius in the range of 75 to 2,000 angstroms.  The immobilized enzyme of the present invention is effective in the production of DFA III from inulin.