baber/WOPTO huggingface dataset:
Patent CA-2026153-A1 (CA)
Title: Surface sweeping machine with over-the-cab dumping
Inventor: YOUNG GARY B
IPC: E01H1/08
Filed: 1990-09-25
Abstract: A street sweeper which includes a frame, a hopper, a cab and a centrifugal separator on opposite sides of the hopper, a mechanism for moving the hopper from a position behind the cab to a position above and forward of the cab for dumping debris from the hopper, the hopper moving mechanism including a pair of first and second relatively extendable and retractable members, each of the first members being connected to the hopper and each of the second members being connected to tie frame, a rotator carrying a slider, and a mechanism for pivoting each rotator which through its associated slider elevates the extendable and retractable members to permit movement of the hopper above and along the cab.
Patent CA-2028468-A1 (CA)
Title: Hydraulic shock absorber
Inventor: BARLOW RONALD F
IPC: B64C25/60
Filed: 1990-10-24
Abstract: ABSTRACT              A HYDRAULIC SHOCK ABSORBER          A hydraulic shock absorber suitable for use with an aircraft landing gear which includes:       -  a first casing member telescopically and sealingly engaged with a second casing member, said second casing member having a first section of reduced diameter in comparison to a second section;   and  -  an oil reservoir defined by the first and second casing members, which is divided into two distinct volumes by a one way restrictor means attached to the second casing member;            Further, the volume of the oil reservoir defined by the first casing member and the first section of the second casing member is further divided into two sections by a second one way restrictor means.     In operation the one way restrictor means acts to restrict the flow of oil from the volume of the oil reservoir defined by the first casing member and the second section of the second casing member to the volume of the reservoir defined by the first casing member and the first section of the second casing member.
Patent CA-2029906-A1 (CA)
Title: Vaccines for combatting septicemic bacteria
Inventor: AUDONNET JEAN-CHRISTOPHE
IPC: A61P31/04
Filed: 1990-03-19
Abstract: (57) Abstract The bacteria expressing iron-regulated outer membrane proteins of which certain are siderophore or transferrin receptors can be used in a vaccinal preparation. Said bacteria are obtained from a culture in a medium in which the iron content is reduced to a level for obtaining an increased expression of said proteins, and in particular of receptors, sufficient to induce, when said bacteria are used in a vaccine, the formation of antibodies preventing the specific recognition of siderophores by their receptors.
Patent CA-2030181-A1 (CA)
Title: Therapeutic agent for central nervous diseases
Inventor: NAGAOKA AKINOBU
IPC: A61K38/06
Filed: 1990-11-16
Abstract: Abstract of the Disclosure The sustained-release oligopeptide having TRH activity exhibits marked efficacy in senile dementia and spinocerebellar degeneration at a very low dose level.
Patent CA-2036748-A1 (CA)
Inventor: TAKASAKI KAZUHIRO
IPC: F16J15/16
Filed: 1991-02-20
Abstract: A seal, constituted by a water-expansible portion and a water-unexpansible portion, prevents water from leaking in a construction joint. The expansible portion surrounds the unexpansible portion everywhere except on a side of the unexpansible portion which is adhered to one of two mutually facing surfaces of the construction joint. The unexpansible portion is sized, relative to the overall size of the seal, particularly in the width dimension, so that it adheres with sufficient strength to one of the mutually facing surfaces of the construc-tion joint so as not to become pulled off in use. An effective seal thus is maintained even in a swollen state.
Patent CA-2038848-A1 (CA)
Title: Hydantoin derivatives
Inventor: KONIG WOLFGANG
IPC: C07K14/78
Filed: 1991-03-22
Abstract: Novel hydantoin derivatives of the formula I (see formula I) in which n is 3 or 4, R1 is alkyl or a radical of the formula (see formula II) with R' and R" being hydrogen or alkyl, and R2 is hydrogen, -NH-CO-NH2 and optionally substituted alkyl, and a process for the preparation thereof and the use thereof for inhibiting platelet aggregation, are described.
Patent CA-2039604-A1 (CA)
Title: Copolymer compositions comprising a copolymer and one or more lubricating additives
Inventor: BROEKHUIS ANTONIUS A
IPC: C08K5/05
Filed: 1991-04-02
Abstract: A B S T R A C T      COPOLYMER COMPOSITIONS COMPRISING A COPOLYMER AND       ONE OR MORE LUBRICATING ADDITIVES      Copolymer compositions comprising an alternating copolymer of carbon monoxide and one or more lubricating additives of the general formula X-R, in which X represents a polar moiety which is one of the following groups: (a) alcoholic -OH, (b) -O-R', (c) -CO-O-R', (d) -O-CO-R', and (e) -CO-OH, in which R' represents an alkyl group having up to 4 carbon atoms which may be substituted with 1 to 3 groups selected from (1) -O-R", (2) -CO-O-R" and (3) -O-CO-R", wherein each R", independently, represents hydrogen or an alkyl group having up to 4 carbon atoms, and R represents a monovalent hydrocarbyl radical having 5 to 30 carbon atoms which is attached to (one of) the polar group(s); and a process for improving flow properties of alternating copolymers of carbon monoxide comprising the addition thereto of one or more of said lubricating additives.
Patent CA-2041071-A1 (CA)
Title: Air engine
Inventor: BUJALSKI WLODZIMIERZ
IPC: F03G7/10
Filed: 1991-04-23
Abstract: Abstract.          Air engine and air compressor with storage tank is the best solution for existing problems like, pollution and shortage of energy. This revolutionary and unique deve-lopment seeks to provide a new device which eliminates the disadvantages mentioned above and will create a new World - more clear and safety. One of the most important functions of the device according to the invention is the use new source of energy, which is "Air underpressu-re."   I find two concepts of operations:          I - In operation, air will be compressed by air compre-ssor 4 to the storage tank 3. This blower unit 4 co-mprises a two speed electric motor- I2 Volt. 2 - Second alternative in operation, air will be pomped to the storage tank 3 by compressor build separately in garage or at gasoline stations. Air compressor 4 will supplement pressure of air in storage tank.    This concept should he helpful to the air compressor in the car.          Air engine never be overheated and doesn't need coolig system.  Power created by the air underpressure(minimum 6 atm.) is changed into circular motion by two cylinders with toothed gear in the engine and the circular motion is transmitted to the rear axle to make the wheels turn.          Power of engine is dependable from size of engine and from pressure of air in storage tank.          One object of this invention is to provide a device of the above nature which wil be simple in construction, inexpensive to manufacture and very efficient and durable in use.          The closed circle way of air underpressure which is ilu-strated in Fig.2 is the best technical solution, because doesn't waste energy which is "Air underpressure."
Patent CA-2041388-A1 (CA)
Title: Procede de blanchiment au peroxyde d'hydrogene de pates a papier a haut rendement
Inventor: LACHENAL DOMINIQUE
IPC: D21C9/16
Filed: 1991-04-29
Abstract: L'invention concerne un procédé de blanchiment de pâtes à papier à haut rendement au moyen de peroxyde d'hydrogène en milieu alcalin, caractérisé en ce que la seule intervention faite entre le début et la fin dudit blanchiment est la modification de l'alcalinité de la pâte par addition d'un agent alcalin à un moment où la quantité de peroxyde d'hydrogène consommée est comprise entre 40% et 75% de la quantité initiale de peroxyde d'hydrogène.
Patent CA-2042271-A1 (CA)
Title: Bio-potential signal processor for magnetic resonance imaging
Inventor: KREGER KEVIN S
IPC: A61B5/276
Filed: 1991-05-09
Abstract: Abstract of the Disclosure An adaptive filtering system is used to reduce the electrical noise on low power ECG signals and the like as generated by rapidly switched magnetic gradient fields in magnetic resonance imaging.  A correlated noise reference signal is derived from the inputs to the gradient coils by a combination differentiator and low pass filter.  The noise reference signal is received by a filter having adjustable coefficients and the result subtracted from the low power signal to produce an error signal used to adjust the coefficients of the filter.  Three separate adaptive filters may be placed in series each with a separate correlated noise reference signal to reduce the noise from three gradient coils.
Patent CA-2042515-A1 (CA)
Inventor: SMELSER DONALD
IPC: G06F12/08
Filed: 1991-05-14
Abstract: A cache memory exchange protocol that utilizes an exchange memory access request is provided.  A cache controller issues the exchange request over a system bus to a main memory in response to a cache miss if the cache location is dirty.  Upon receiving the request, the main memory decodes the request and fetches a block of information desired by the CPU.  While the main memory is fetching, the controller transfers a dirty cache block of information over the system bus and stores the dirty block in a temporary register located in the main memory.  The block of information desired by the CPU is thereafter trans-ferred by the main memory to the CPU via the system bus.  The dirty cache block residing in the temporary register is then stored in the main memory storage elements.
Patent CA-2044446-A1 (CA)
Title: Analytical reproduction process by way of stone, or any other material, engraving
Inventor: BOURGES JACQUES
IPC: B44C1/22
Filed: 1991-06-12
Abstract: The invention relates to a method of reproduction by blackline relief engraving on the surface of a support made of hard material of a design for decorative use in which the light zones of the design are hollowed out and in which the zones which are to come into shade are spared. This method consists:   - in a first phase of tracing on said support hollows which are cut so as to delimit in relief on said surface a frame of regular geometric unit motifs, - and in a second stage of removing the regular geometric unit motifs in relief corresponding to said light zones of the design for decorative use so as only to leave apparent the geometric unit motifs corresponding to the zones of shade.   Applications: commemorative monuments, elements of modern sculpture, funeral steles, giant frescoes, facade coverings, logos etc.
Patent CA-2045275-A1 (CA)
Title: Solid imaging system using incremental photoforming
Inventor: LAWTON JOHN A
IPC: B29C67/00
Filed: 1991-06-21
Abstract: ABSTRACT     An apparatus and method for fabricating integral three-dimensional objects from A plurality of photoformed sub-portions  of  successive  individual  layers  of  a photoformable composition through a transparent barrier, where the barrier is detached from each sub-portion before a new sub-portion is formed.
Patent CA-2046544-A1 (CA)
Inventor: NODA TSUGIO
IPC: G06T9/00
Filed: 1991-07-09
Abstract: An image data encoding system efficiently reconstructs an image through a progressive image buildup in stages.      An original image is divided into blocks each having NXN picture elements, whose transformation coefficients are obtained by orthogonal transformations on their graduated values.    The image data encoding system has a transformation  coefficient memory  for  storing transformation coefficients; a mask information memory for  storing  mask  information  for  masking transformation coefficients; a masker for masking the most significant bits of the transformation coefficients specified by mask information; a shift information memory storing quantization thresholds for quantizing the transformation coefficients; and a quantizer for quantizing the masked transformation coefficients per the quantization threshold.    The quantization threshold can be given a value of 2 to an integer power, and quantization can be attained by shifting bits of the transformation coefficients towards less significant bits by that power.
Patent CA-2047818-A1 (CA)
Title: Cutting of meat
Inventor: WADELL LARS G A
IPC: A22C11/00
Filed: 1991-07-24
Abstract: Abstract A cutting device for sausage meat comprising a surrounding and supporting tubular cutting head f or a strand of sausage meat comprising a rotating profiled cutting means for cutting the sausage meat strand transversely into sausages having convex shaped ends.
Patent CA-2049818-A1 (CA)
Inventor: DARNELL RALPH D
IPC: H04W64/00
Filed: 1991-08-26
Abstract: ABSTRACT OF THE DISCLOSURE            The invention comprises a portable locating unit useful both as a cellular telephone and portable global positioning system that provides latitude and longitude information remotely to a base unit display.  The system includes a small hand held receiver that receives signal from a satellite global positioning system and timing and computing circuits to provide location information signal. The hand held unit also includes a modem and transmitter to a cellular telephone network which is connected to the base unit computational system and display. The location of an individual or object can thus be determined at the remote station through the use of the cellular telephone network.
Patent CA-2051037-A1 (CA)
Title: Exchange system handling an in-band signal
Inventor: NAKAMURA KATSUYUKI
IPC: H04J3/06
Filed: 1991-09-10
Abstract: ABSTRACT OF THE DISCLOSURE         An exchange system of a digital communication system includes a switch, and a frame correction numeral determining part for determining a frame correction numeral corresponding to a time delay of a path which is actually formed by the switch,  An in-band signal dropping unit drops an in-band signal from the input time slots in a frame which lags behind a specific frame by the frame correction numeral.  An in-band signal inserting part inserts the in-band signal into the output time slots of the specific frame of a subsequent multiframe subsequent to a multiframe having the input time slots from which the in-band signal is dropped by the in-band signal dropping unit.
Patent CA-2051466-A1 (CA)
Title: Process for the preparation of optically active aliphatic hydroxycarboxylic acids
Inventor: BLASER HANS-ULRICH
IPC: C07C69/66
Filed: 1991-09-16
Abstract: Process for the preparation of optically active aliphatic hydroxycarboxylic acids Abstract of the Disclosure The asymmetric hydrogenation of aliphatic .alpha.-keto esters in the presence of rhodium catalysts which contain as chiral ligand a diphosphine of formula IV     (R3)2P-Q-P(R3)2                         (IV) wherein R3 is phenyl, C1-C6alkylphenyl or C1-C6alkoxyphenyl, and Q is [2,2,1]-bicyloheptan-1,2-ylene or [2,2,1]-bicyclohept-4,5-en-1,2-ylene, gives the corresponding (R)- or (S)-.alpha.-hydroxycarboxylic acid esters in high rates of chemical conversion and in high enantiomer excesses.
Patent CA-2051646-A1 (CA)
IPC: B65C9/06
Filed: 1991-02-19
Abstract: 2051646 9112996 PCTABS00007 A cartonless recyclable package (P) for protectively enclosing a product (C), such as photographic film (F), comprises a recyclable plastic container (10) and mating cap (18) with recyclably compatible plastic labels (26, 32, 38) thereon bearing product information. One such label (26) on the cap (18) has readily tearable tab portions (28) extending therefrom and tautly secured to the container (10), to tear apart when the cap (18) is first removed. A  second label (32), secured to the container (10) and overlapping the tearable tab portions (28), includes inner and outer sheets (34, 36) separably adhered together. The outer sheet (36) can be peeled back to reveal information on the interfacing surfaces (34o, 36i) of both sheets (34, 36), and then re-adhered to the inner sheet (34). A third label (38), separably adhered to the first label (26) on the cap (18), may be peeled away and re-adhered to some other surface for reference after the product (C) has been removed. A thumb tab (24) on the cap (18), to facilitate cap (18) removal, is used also to orient the container (10) and cap (18) for appropriate placement of the labels (26, 32, 38), and to orient the resulting package (P) in a cooperating displaying and dispensing device (D). That device (D) comprises an upstanding, open-ended, transparent, tubular chute (50) having a longitudinal slot (58) extending down a rear side thereof and configured to receive the package (P) through its open top end (52), with the thumb tab (24) projecting rearwardly (d1) through the slot (58), thereby orienting the package labels (26, 32, 38) to face forwardly (d2) in a desired display direction (dd). The package (P) is gravity-fed to the open bottom end (54), where it (P) is supported (78) and oriented for convenient removal.
Patent CA-2052300-A1 (CA)
Title: Co-axial catheter
Inventor: MARTIN GEOFFREY S
IPC: A61M25/00
Filed: 1991-09-26
Abstract: ABSTRACT OF THE DISCLOSURE          A  catheter  is  provided  having  a  main  section  with proximal and distal ends and including an inner tube.  The outer tube extends along a  longitudinal  axis  and combines with  the inner tube to define an annular intake lumen, and a tubular tip section is included having a smaller cross-section than the main section.  The tip section has a return opening and a transition portion  is  at  the  distal  end  of  the  main  section.   The transition portion is formed of material provided in overlapping parts of the inner tube inside the tip section which is inside the outer tube.  The inner tube blends into the tip section at the transition portion and the outer tube blends smoothly into the tip section with the intake lumen ending at the transition portion.  An outlet lumen is formed by the inner tube and the tip section and ends at the outlet opening.
Patent CA-2052537-A1 (CA)
Inventor: BERNT JORGEN O
IPC: F27D1/14
Filed: 1991-09-30
Abstract: A rotary kiln assembly has steel plates lining the kiln are mounted on hangers projecting through the plates and overlie an insulation layer.
Patent CA-2053762-A1 (CA)
Title: Sensor position indicator coils to be used in magnetoencephalographic experiments and a means of attaching them to the head
Inventor: AHOMEN ANTTI I
IPC: A61B5/04
Filed: 1991-10-18
Abstract: ABSTRACT     Sensor position indicator coils to be used in magnetoen-cephalographic experiments and a means of attaching them to the head. The invention comprises a headband (1) and a coil assembly attached to it. The coil assembly consists of a coil set (5) and of at least three fastening strips (6) or of fastening strips having coil sets of indi-vidual coils (5') on them. The mechanical properties of the coils are very important. The coil set (5) has three thin- or thick-film coils cast in epoxy resin. The outside surface of the headband (1) and the inside surfaces of the fastening strips (6) have been covered with materials adhering to each other easily. In addition, the underside of the coil set (5) can contain three small knobs, formed during casting, on which the coil set leans when pressed against the head, staying in the tangent plane of the head.
Patent CA-2058321-A1 (CA)
Title: Process for treating surfaces
Inventor: ESROM HILMAR
IPC: C08J7/00
Filed: 1991-12-23
Abstract: Abstract of the Disclosure:     The process removes or partially structures the surface of a substrate of a polymer.  The surface of the substrate is irradiated with an incoherent UV radiation which has a wavelength of 60 nm to 400 nm.  In order to form the struc-tures, a mask is placed on the surface of the substrate.
Patent CA-2065555-A1 (CA)
Title: General purpose chair
Inventor: CHRISTIANSEN POUL
IPC: A47C1/0355
Filed: 1992-04-08
Abstract: S u m m a r y :  ABSTRACT.                   General Purpose Chair.     A general purpose chair, particularly for infirm and handicapped people, is provided with a framework having legs, a seat, a back rest, and an arm rest.  In order to make the height of the seat, the inclination of the seat, and the inclination of the back rest adjustable, as well as to assist the individual when getting Up, the seat (10), either with or without the arm rests (14) and/or the back rest  (12),  can be adjusted in its height and/or in its inclination, and the arm rests are either attached solidly or are designed to fold back to the sides.     Figure 1-b
Patent CA-2065713-A1 (CA)
Title: Sulky
Inventor: GUARINO MARK A
IPC: B62C5/02
Filed: 1992-04-09
Abstract: Abstract A sulky for carrying a rider behind a horse con-sisting essentially of an arch, a pair of wheels connected to the  arch,  a pair of rails extending along the longitudinal axis of the sulky, coupling means for coupling the rails to the arch, wherein the coupling means permit lateral movement of the rails about vertical pivot axes relative to the arch,  fork means connected between the rails and arch and movement stabilizing means connected between the plane of the rails substantially adjacent the horse and the arch.   In a preferred embodiment the motion of the rails  is restricted to lateral movement in a horizontal plane and the ends of the rails adjacent the arch are movably connected with a "U" joint overlapping the upper and lower surfaces of the arch.   In a particularly preferred embodiment, the segments of the rails adjacent the harness of the horse include a ball joint-containing section and a free end which is capable of quickly coupling to a clevis integral with the harness.
Patent CA-2065904-A1 (CA)
Title: Welding method for aluminum alloys
Inventor: TAKANO HIDEAKI
IPC: C22C21/00
Filed: 1992-04-13
Abstract: This invention involves a MIG welding method for aluminum alloys to prevent the formation and deposition of black powder on or around the weldment's bead. By using pure aluminum wire or aluminum alloy wire containing less than 2.5 wt% the base of alloying components  as  the consumable electrode wire and using aluminum alloy wire as the filler wire 3, the consumable electrode wire 2 and the filler wire 3 are fed into the a metal bath under a certain weight ratio, so that the alloy composition of the molten metal bath is equivalent to that of the base of the black powder on the both sides of the weldment's bead can be is avoided.
Patent CA-2066383-A1 (CA)
Title: Multilayer thermoplastic composites
Inventor: MUEGGE JOACHIM
IPC: B32B7/10
Filed: 1992-04-16
Abstract: A multilayer thermoplastic composite comprising at least one layer made from a polyamide-based moulding composition, at least one layer made of a polyester-based moulding composition and an adhesion promoter between the two layers is disclosed.      The adhesion promoter comprises a polyamide, a polyester or a mixture thereof. The composite combines the good rigidity, excellent barrier action and high temperature resistance of polyesters with the good mechanical properties of polyamides.      The composites of the invention are useful fox manufacturing structural components, for example in electrical, machine and automotive industries. They may also be used as films, in particular as foodstuff packaging films, or as multilayer tubes.
Patent CA-2067990-A1 (CA)
Title: Substituted naphtalenediamine stabilizers
Inventor: STEINBERG DAVID H
IPC: C10M133/22
Filed: 1992-05-05
Abstract: SUBSTITUTED NAPHTHALENEDIAMINE STABILIZERS          Abstract of the Disclosure N-Allyl and N-methylene-thio substituted naphthalene-1,8- or -1,5-diamine compounds are very effective antioxidant stabilizers for organic material subject to oxidative or thermal degradation, particularly for lubricant compositions.