baber/WOPTO huggingface dataset:
Patent CA-2027657-A1 (CA)
Title: Method for preparing laminates of znse and zns
Inventor: PUROHIT PAUL V
IPC: G02B13/16
Filed: 1990-10-15
Abstract: An improved method of forming a ZnS layer on a Znse substrate by chemical vapor deposition of ZnS onto the ZnSe is disclosed in which the ZnS is contacted, prior to the chemical vapor deposition of the ZnS, with H2S in the absence of zinc metal vapor to cause reaction of the H2S and the surface of the ZnSe substrate.
Patent CA-2030868-A1 (CA)
Inventor: BORCHARDT MICHAEL G
IPC: C08L23/02
Filed: 1990-11-26
Abstract: The invention relates to a write-on surface derived by surface treatment (corona-discharge or other similar surface treatment) of a novel write-on composition.  The write-on composition to be treated is characterized as a physical mixture of two substantially incompatible polymers and, optionally, a particulate material.
Patent CA-2031340-A1 (CA)
Title: Process for preparing ibuprofen and its alkyl esters
Inventor: STAHLY BARBARA CLACK
IPC: C07C57/30
Filed: 1990-12-03
Abstract: PROCESS FOR PREPARING IBUPROFEN       AND ITS ALKYL ESTERS                 Abstract of the Disclosure A new process for preparing ibuprofen or its alkyl esters is provided.  A 1-halo-1-(4-isobutylphenyl)ethane is reacted with carbon monoxide in the presence of water or an alcohol at a temperature between 10°C and 200°C.          An excess of several moles of water or alcohol is preferred.  An acid such as hydrochloric acid may also be added.  As catalyst, a palladium compound and at least one acid-stable ligand are present; and an excess of ligand over palladium is advantageous.
Patent CA-2033342-A1 (CA)
Title: Process for manufacturing clinkers
Inventor: BIRKNER FRIEDRICH
IPC: C04B33/13
Filed: 1990-05-30
Abstract: Process for the production of clinkers Abstract:   In a process for the production of clinkers from sludges containing heavy metals, especially electroplating sludges, river and/or harbor sludges, in which the sludges are mixed with clay, especially brickyard clay, and optionally lean materials and fluxing materials and then are burned to clinkers especially at temperatures between 750 and 1150°C, zeolites are admixed with the sludges and the clay before the burning.
Patent CA-2033657-A1 (CA)
Title: Glucose isomerases having altered substrate specificity
Inventor: LAMBEIR ANNE-MARIE V R
IPC: C12N15/61
Filed: 1991-01-04
Abstract: A method for selecting amino acid residues is disclosed which upon replacement will give rise to an enzyme with an altered substrate specificity. New mutant glucose isomerases with an altered substrate specificity are provided according to this method. These altered properties are useful in starch degradation and in other sugar conversion reactions.
Patent CA-2034109-A1 (CA)
Title: Drum
Inventor: WANG J S
IPC: G10D13/02
Filed: 1991-01-14
Abstract: ABSTRACT    A  drum  includes a hollow drum body,  a  drum  skin frame supported by the wall of the hollow drum body,  a drum skin stretched on the drum skin frame, and a  drum head frame tightly clamping the peripheral edges of the drum  skin frame and the drum skin. A  damping  member, disposed between the drum head frame and the drum  skin frame,  absorbs the vibrations of the two  drum  frames and  filters  out the sound they produce  whenever  the drum skin is beaten.
Patent CA-2034993-A1 (CA)
Inventor: BUBIK ALFRED
IPC: D21F9/00
Filed: 1991-01-25
Abstract: In order to regulate dewatering of the fiber suspension and the formation of the paper web between the upper and lower wires of the papermaking machines, upper ledges are provided along  with  the  upper  wire.    These  upper ledges  are particularly  constructed  so  as  to  have  uniform  design. Between these upper ledges,  there is left free the same distance or spacing.  This distance is not smaller than the width of each upper ledge.  The individual distances between the upper ledges can be closed by insertable inserts so that the dewatering  can be  forcibly  accomplished at mutually separated zones.  Along the lower wire, there are provided lower ledges at a table, and between these lower ledges, it can be adjusted varying distances or spacing therebetween. The mutual distance or spacing between the lower ledges, according to a favorable construction, is always greater than the width of the individual upper ledges plus the distance or spacing of an upper ledge from the next neighboring upper ledge.  The lower ledges can be mounted at the table so as to be lengthwise displaceably and individually adjustable in the direction of the lower wire.   The table can be selectably positioned vertically as well as horizontally relative to the lower wire.  All of these measures also can be accomplished during operation of the papermaking machine.  The individual lower ledges are elastically supported against the table and this table is elastically supported against its foundation. It is possible to undertake the web forming operation, during operation of the papermaking machines,  in accordance with technological  requirements and the time wise as well  as localized situations, while protecting the paper web which is to be  formed and  equally the  equipment which  is to be operated.
Patent CA-2038118-A1 (CA)
Title: Semiconductor rubber foam
Inventor: TOJO TETSUO
IPC: C08J9/10
Filed: 1991-03-12
Abstract: Abstract of the Disclosure Disclosed is a semiconductive rubber foam having a volume resistivity that can be controlled to a practical level and retaining an initial softness (hardness) even after the lapse of time.  This semiconductor rubber foam is composed of a molded article obtained by curing and foaming a rubber composition comprising (A) 100 parts by weight of a chlorinated ethylene/?-olefin copolymer rubber and (B) 10 to 50 parts by weight of carbon black. The volume resistivity of this semiconductive rubber foam has is in the range of from 105 to 1011 .OMEGA.-cm.
Patent CA-2039104-A1 (CA)
Title: Earth anchor apparatus having improved load bearing element
Inventor: SEIDER GARY L
IPC: E02D5/80
Filed: 1991-03-26
Abstract: ABSTRACT OF THE DISCLOSURE An earth anchor apparatus includes a hub having a longitudinal axis and first and second axial ends, and a load-bearing helix affixed to the hub. The load-bearing helix includes a generally radially extending leading edge adjacent the first end of the hub, a generally radially extending trailing edge adjacent the second end of the hub, an inner circumferential section connected to the hub, and an outer circumferential section extending radially outward from the inner circumferential section and having an outer circumferential edge separated from the inner section. A pair of opposed surfaces extend between the inner section and the outer edge and define a thickness of the helix. The thickness of the helix at the trailing edge is greater adjacent the inner circumferential section than at the outer circumferential edge, and the thickness of the helix adjacent the inner circumferential section is greater at the trailing edge of the helix than at the leading edge. In this manner, material is removed from areas of the helix where less loading stress develops during installation and use of the anchor while material is added to areas of higher loading stress.
Patent CA-2040416-A1 (CA)
Title: Seal ring for a sleeve joint
Inventor: JARVENKYLA JYRI
IPC: F16L21/03
Filed: 1990-08-14
Abstract: Abstract This invention relates to a seal ring for a sleeve joint,  which besides sealing also locks the sleeve (3) and an insert end (4) together in the longitu-dinal direction of the pipes.  An axial  locking is needed especially in connection with pressure pipes. The locking effect of the seal ring (6) can be im-proved by making the ring at least partially of a material (8) expanding when coming into contact with a liquid. (Figure 1)
Patent CA-2044690-A1 (CA)
Title: Oil spraying device
Inventor: MATHIEU ROBERT
IPC: B05B9/01
Filed: 1991-06-14
Abstract: A B S T R A C T     An undercoating applicator powered by an electric drill, for applying undercoating liquid to the underside of a vehicle comprising a reservoir,  a chamber, which has at least one orifice, a pump which is driven by the electric drill and which is capable of pumping undercoating liquid from the reservoir to the chamber and at least one impeller which is driven by the electric drill and which is housed within the chamber.
Patent CA-2047565-A1 (CA)
Inventor: HARPER KENNETH E C
IPC: A47K3/28
Filed: 1991-07-22
Abstract: ABSTRACT     A concave shower unit which can be built into a cabinet, either free standing or suspended from a wall, self contained to hold shower head in an overhead position, shampoo and soap holders, taps, spout, and a drain .
Patent CA-2052941-A1 (CA)
Title: Position and orientation measurement system and method
Inventor: GAERTNER WOLFGANG W
IPC: H01L31/02
Filed: 1991-10-08
Abstract: ABSTRACT       A system and method to measure the relative position and orientation of a remote body, such as a pilot's helmet.  At least four high intensity infra red LEDs positioned on the remote body are pulsed one at a time in known sequence.  The LEDs are pulsed by diode drivers including NMOS switches.  The LEDs have darkened substrates and multiple (nine) heating pads.  A multi-element (nine), wide angle, wide aperture, short focal length lens focuses pulsed light spots on a single highly linear, high resolution, two-dimensional duo lateral position sensing diode having a single photoelectric sheet.  Low noise transimpedance amplifiers reverse bias the position sensing diode and convert the position sensing diode current signals to voltage signals, then converted by an analog to digital converter to digital signals indicative of the position of pulsed light spots on the position sensing diode.  A digital signal processor uses the digital signals to calculate recursively the relative position and orientation of the remote body, in part by comparing calculated sensed and guessed values.          Two calculation methods are disclosed for six degrees of freedom, one providing an accuracy generally of around 30 arc seconds and ideally of 3 arc seconds.  Update rates of at least several hundred Hz are obtained.
Patent CA-2053939-A1 (CA)
Title: In-situ removal of effluents from a gaseous stream by injection of an effluent sorbent nitrate into the gaseous stream downstream of the combustion zone
Inventor: RODRIGUEZ DOMINGO
IPC: B01D53/50
Filed: 1991-10-22
Abstract: ABSTRACT OF THE DISCLOSURE      The present invention is drawn to a process for removing effluents from off-gases generated by the combustion of a hydrocarbon fuel and, more particularly, a process as aforesaid wherein an effluent sorbent nitrate is injected into the off-gas stream downstream of the combustion zone at a controlled off-gas stream temperature.
Patent CA-2054938-A1 (CA)
Inventor: DIETZ HANS
IPC: B27L5/00
Filed: 1991-11-05
Abstract: An apparatus and a method serve for cutting elongate pieces of wood  having  a  modulus  of  elasticity  between  50,000  and 400,000 kg/cm'.   A circular saw blade is provided having a plurality of spaced peripheral teeth.  The saw blade is rotated about an axis at a cutting speed exceeding 40 m/s.  The pieces of wood are displaced relative to the saw blade along a feeding direction extending perpendicular to the saw blade axis of rotation.  A stationary bending element is arranged on a broad side of the saw blade adjoining the cutting teeth.  The bending element has a radially profiled surface with a thickness increasing towards the axis and decreasing towards the cutting teeth.  The saw blade can be used to cut a slot into the pieces of wood along the feeding direction, thus generating a first and a second section of the pieces of wood.  The bending element ensures that the first section is lifted from the saw blade immediately after the formation of the slot.   A deflection element is arranged at a first distance from the bending element downstream along the feeding direction.  The deflection element exerts a first force on a first surface of the first section facing away from the bending element.  A supporting element is arranged at a second distance from the bending element downstream along the feeding direction with the second distance being smaller than the first distance.  The supporting element exerts a second force on a second surface of the first section facing the bending element.
Patent CA-2058134-A1 (CA)
Inventor: KOHARA TEIJI
IPC: C08F232/08
Filed: 1991-12-19
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention discloses an alkylidene-norbornene polymer comprising as the essential constituent at least one kind of the structural unit represented by the formula                (I) wherein R1 denotes an alkyl group of 1-4 carbon atoms and R2 denotes a hydrogen atom or an alkyl group of 1-5 carbon atoms, and a process for producing the same.         According to the present invention, an alkylidene-norbornene polymer is obtained which is excellent in light resistance, transparency, heat resistance and moisture resistance and is useful as an optical polymeric material.
Patent CA-2059622-A1 (CA)
Title: Pipe Coupling
Inventor: BLOSE THOMAS L
IPC: F16L15/00
Filed: 1992-01-17
Abstract: A pipe coupling or connection comprises  a  female coupling component and a mating male coupling component.  Each component is matingly threaded for coupling engagement, and each is provided with an adjacent frusto-conical sealing surface.  The sealing surface is provided with a controlled surface roughness, viz. very shallow fine surface variations, preferably formed as microgrooves at a pitch small relative to the pitch of the threads.  The slope of the frusto-conical surface of the sealing area of the male component is slightly mismatched with that of the sealing area of the female component to simulate the bearing force vs. axial distance characteristic of shrunk-fit circular cylindrical sealing surfaces.  The slight mismatch enables the sealing pressure to be above a design minimum throughout the entire sealing area yet higher at each end of the sealing area.          As the coupling is assembled, thread interference in the vicinity of the sealing surface lags the occurrence of  interference between the sealing surfaces.  Load threads are provided with negatively inclined load flank faces.
Patent CA-2060562-A1 (CA)
Inventor: SAKAMOTO SEIJI
IPC: C08G63/189
Filed: 1992-02-03
Abstract: ABSTRACT OF THE DISCLOSURE:         A biaxially oriented polyethylene-2,6-naphthalate (PEN) film for capacitor dielectric which contains the specific monodisperse cross-linked polymer particles is described.  The capacitors using the PEN film have excellent handling qualities and workability as well as excellent electrical properties.
Patent CA-2060846-A1 (CA)
Inventor: BOISTURE THOMAS B
IPC: B23P19/02
Filed: 1992-02-07
Abstract: A heat exchanger tube bundle extractor capable of being used either suspended from a crane or while mounted onto a rigid extendible boom. The extractor features brackets for attaching the extractor to cables suspended from a crane. The extractor can also be mounted onto an extendible boom having an articulated head. When desired, the bundle extractor can be used while mounted onto the boom. If crane operations are preferred, the extractor can be readily detached from the boom and suspended from a crane at much higher elevations.
Patent CA-2061071-A1 (CA)
Title: On-board weighing system for a vehicle
Inventor: TYHY GARY
IPC: G01G19/12
Filed: 1992-02-12
Abstract: An on-board weigh scale for a vehicle is disclosed. The weigh scale has a transport configuration wherein the weigh scale is substantially protected from damage during transport, and a weighing configuration wherein the weigh scale is in an operative condition for measuring the weight of a material.   The weigh scale includes a support-frame capable of being mounted on a frame of a vehicle; a weigh-frame  mounted  above  the  support-frame,  and  capable of supporting a quantity of a material.  Structural supports are mounted on the support-frame for securely supporting the weigh-frame in the transport configuration.  Hydraulic jacks are used to lift the weigh-frame off of the structural supports when said weigh scale is in transition between the transport and the weighing configurations.   The weight of material is detected by load cells, via load transfer elements which are installed when the weigh scale is in the weighing configuration.  The load transfer elements are removed in the transport configuration, in which condition, the load cells are not subject to any of the weight of the material.  Finally angle sensors are used to detecting the angle of orientation of weigh scale with respect to vertical.  The detected angle is used to determine a calibration signal, thus allowing for compensation of an error in the weight detected by the load cells resulting from an out-of level condition of the weigh scale, thereby facilitating accurate weight measurements.
Patent CA-2061590-A1 (CA)
Title: Circular saw arrangement
Inventor: GARUGLIERI ANDREA
IPC: B27B27/02
Filed: 1992-02-20
Abstract: Abstract A circular saw arrangement comprising a frame (1) at which a table plate (3) is mounted pivotable between a first position in which its first side faces upwardly and a second position in which its second side faces upwardly, wherein the table plate (3) can be non-movably connected with the frame (1) in the first and in the second position.  A support element (15) is mounted to the table plate (3) rotatably about a rotation axis (14) extending vertically with respect to the main plane of the table plate (3) which support element (15) extends across a part of said first side and carries a saw unit containing a powered saw blade (44).  In the first position of the table plate (3) the saw blade (44) can be moved downwardly from a raised position to cut a workpiece (W) and can be moved from a centre position to a miter position.  In the second position of the table plate (3) the saw unit is located beneath such table plate (3) with a section of the saw blade (44) extending through a through slot (17) in said support element (15) and upwardly beyond the second side of the table plate (3).  In a cutting position the saw blade (44) is located above the part of the table plate (3) covered by said support element (15) and at least in such a position is movable in the longitudinal direction of said through slot.  In said table plate (3) and opening 109 is provided which in the center position of the saw blade (44) is overlaid by at least a portion of said through slot (17) and through which opening (10) and said through slot (17) the saw blade (44) extends in the second position of said table plate (3).
Patent CA-2062117-A1 (CA)
Title: Multi-channel multi-wavelength detection system
Inventor: HOUGH DAVID L
IPC: G02B26/02
Filed: 1992-03-02
Abstract: ABSTRACT A radiation aperture system where two sets of apertures are distributed in ring sections of like radius on two parallel rings. As one ring is rotated with respect to its counterpart, one aperture of each ring will align to pass a radiation beam through both apertures. Only a single aperture pair is formed at each unique time, allowing sequential measurements of all combinations of both aperture openings during rotation without halting the rotation. MS-1642
Patent CA-2065745-A1 (CA)
Title: Monocyclopentadienyl transition metal olefin polymerization catalysts
Inventor: CANICH JO ANN MARIE
IPC: B01J31/18
Filed: 1990-09-13
Abstract: The invention is a catalyst system including a Group IV B transition metal component and an alumoxane component which may be employed to polymerize olefins to produce a high molecular weight polymer.
Patent CA-2068293-A1 (CA)
Inventor: ADDISON ROBERT A
IPC: B65D45/34
Filed: 1992-05-08
Abstract: A plastic drum assembly includes a plastic body with an open top, terminated in a neck having two annular flexing zones, a plastic cover, and a ring for securing the cover to the body. The cover may also have flexing regions corresponding to the flexing regions on the neck. The flexing regions cooperate to permit the neck and the cover to flex in a hinging action in presence of an impact on the body to ensure that the cover is not separated, thereby preventing spillage.
Patent CA-2069345-A1 (CA)
Title: Electrical machine
Inventor: BLASER PETER T
IPC: H02K29/08
Filed: 1992-05-25
Abstract: A-814                    17.06.1991 - 11 -               wsba.ur Abstract The invention relates to an electrical machine, particularly a brushless direct-current motor, with a motor housing, a rotor, a stator and a device for detecting the rotor position and the rotational speed, with the device being disposed outside the motor housing on the motor shaft and with the device being connected in fixed manner to the motor housing and with replacement being possible in simple manner and in a short time.
Patent CA-2072773-A1 (CA)
Title: Determination of roll angle
Inventor: HANSEN AKE
IPC: G05D1/08
Filed: 1992-06-30
Abstract: Case 3260 ABSTRACT            The invention relates to an arrangement for determining the  roll  angle  attitude  of  a  rotating  projectile, grenade,  missile  or  the  like  (1)  with  the  aid  of polarised electromagnetic radiation, comprising a trans-mitter  (2)  arranged  to  emit  a  position-determining polarised radiation space wave (4) in the direction of the projectile  and  a  receiver  (5)  arranged  in  the projectile  for  receiving  the  emitted  radiation.  The emitted space wave is made up of a carrier wave reference with  frequency  f1  which  is  phase-modulated  with  a modulation frequency f2, where f2 < = f1 and forms a submultiple of the carrier wave frequency f1.
Patent CA-2073321-A1 (CA)
Inventor: TAKAHASHI AKIRA
IPC: G11B11/10
Filed: 1992-07-07
Abstract: A magneto-optical disk has a recording layer whereon recorded bits are formed by the magnetic field modulation method  and  a  readout   layer  whose  axis  of   easy magnetization is parallel to the recording layer at room temperature,  and  varies  to  be  perpendicular  to  the recording layer within a predetermined temperature range between  room  temperature  and  the  Curie  temperature.          During  reproduction  of  the  recorded  bits  the  first semiconductor laser emits a heating-use light beam to form the  first  light  spot  on  the  readout  layer.   Thus,  a ring-shaped  region  corresponding  to  the  predetermined temperature   range   exhibits   perpendicular   magnetic anisotropy and  the  recorded bits  are  copied  from the recording layer onto the ring-shaped region.  As the first light spot is shifted, the ring-shaped region as a readout window of recorded bits is also shifted.   Further,  the second semiconductor laser emits a reproduction-use light beam such that the second light spot is formed on the readout layer to overlap the first light spot at a rear portion  thereof.   Consequently,  only  one  recorded  bit copied onto the rear portion of the ring-shaped region can be reproduced; therefore, high-quality reproduced signals can  be  obtained  from  the  magneto-optical  disk  having information recorded with high density.
Patent CA-2074545-A1 (CA)
Title: Method for removing coatings from metal substrates prone to corrosion or deterioration
Inventor: WHITTON COLIN A
IPC: C09D9/00
Filed: 1992-07-23
Abstract: The invention relates to a method for removing coatings, in particular, organic coatings from metal substrates which are easily corroded or discoloured: aluminimum, aluminium alloy, zinc or zinc alloy.        Previously known compositions for this purpose were based on methylene chloride which is environmentally undesirable. In contrast, this invention uses a composition which comprises strong alkali, a polyhydric alcohol or ether derivative thereof and a pyrollidone and, or a lactone. The preferred pyrollidone is N-methyl pyrollidone.