baber/WOPTO huggingface dataset:
Patent CA-2038561-A1 (CA)
Title: Methods and apparatus for non-destructive testing of materials using longitudinal compression waves
Inventor: ALLAIRE CLAUDE
IPC: G01N29/00
Filed: 1991-03-19
Abstract: ABSTRACT OF THE DISCLOSURE          The non-destructive testing of materials, particularly coarse grain materials such as the carbonaceous materials used in the anodes and cathodes of an aluminium smelting furnace, using longitudinal compression waves employs a waveguide to apply the waves to a specimen, the and specimen having a cross-sectional dimension Dg of between 3 and 5 times the material average grain size Dg.  Alternatively, or in addition, the waves used preferrably are of effective wavelength from about 30Ds to 50Ds.  Alternatively, or in addition, the effective wavelength of the waves is preferred to be approximately equal to the length of the sample; the necessary very long samples may be obtained by connecting a plurality of smaller elementary samples end-to-end.  The apparatus may include a controllable furnace for cycling the sample to determine the change with temperature of the physical characteristic that is being measured.  The methods and apparatus employ relatively low frequencies, in the sonic range, and high powers; although particularly suited for measurements with coarse grain materials they are also very effective with more usual fine grain materials, such as ceramics.
Patent CA-2038993-A1 (CA)
Inventor: SAKAI TSUTOMU
IPC: C09J7/38
Filed: 1991-03-25
Abstract: The adhesive composition of the invention exhibits an adequately controlled adhesive bonding strength when paper sheets coated therewith are bonded together to be adaptable to subsequent separation of the bonded sheets of paper by peeling.  The essential ingredients of the adhesive compo-sition include:  (a) a rubber latex;  (b) a silica gel powder having a specified average particle diameter; and (c) a starch, preferably, having a specified particle diameter, e.g. wheat starch, each in a specified weight proportion. In addition to the good balance between the reliability of the adhesive bonding and subsequent peelability, the paper sheet coated with the adhesive composition is prevented from a decrease in the adhesiveness even when the surface is contaminated with a silicone oil and from the troubles due to blocking when adhesive-coated sheets are stacked one on the other with the adhesive-coated surfaces in direct contact with each other.
Patent CA-2040863-A1 (CA)
Inventor: MOREL ROBERT
IPC: H01H71/12
Filed: 1991-04-19
Abstract: A limiting circuit breaker with a molded case comprises an overpressure actuator which, when an overpressure occurs in the arc extinguishing chamber due to the action of an arc drawn by the electrodynamic repulsion of the contacts, brings about actuation by a piston, subjected to this overpressure, of the circuit breaker trip bar. The overpressure actuator forms an almost leaktight assembly.
Patent CA-2041459-A1 (CA)
Inventor: GEESEN MICHEL
IPC: B64G1/22
Filed: 1991-04-29
Abstract: The invention concerns a feedback control loop comprising a mixer comprising a first input receiving an electromagnetic signal, and a second input receiving a first local signal; an intermediate frequency line mounted between the output of the mixer and the input of a phase comparator which receives on a second input a second local signal and has an output; and a feedback line connected between this output and the second input of the input mixer, and comprising a loop filter controlling a variable oscillator for providing the said first local signal as well as a second variable oscillator for providing the second local signal. The loop filter comprises (i) a proportional section mounted between the output and the control input of a second variable oscillator; (ii) an integral variable section mounted between the output of the proportional section and the control input of the first variable oscillator; and control means capable of progressively changing the parameters of the proportional and integral sections so as to progressively reduce the bandwidth of the phase control system and to increase the filtering of the noise and of the interference signals superposed on to the electromagnetic signal.
Patent CA-2041523-A1 (CA)
Title: Removable power sweep
Inventor: SIEMENS WILLIAM D
IPC: B65G65/46
Filed: 1991-04-30
Abstract: ABSTRACT         A bin clean-out system for circular grain bins having flat  floors  includes  an in-floor auger with a central inlet and an outlet outside of the bin.   A bin sweep is connected to the in-floor auger by two right angled gear drives and a splined connection between the two.   Driving the in-floor auger with an external motor and drives both the auger and the bin sweep.   The bin sweep can be lifted from the in-floor auger and trans-ported to another bin as desired.
Patent CA-2044757-A1 (CA)
Title: Process and apparatus for dehumidifying wet air
Inventor: RYHAM ROLF
IPC: D21F7/00
Filed: 1991-06-17
Abstract: ABSTRACT OF THE DISCLOSURE Wet air preferably from a liquid ring pump is dehumidified by the use of a desiccant liquid absorber. The heat released by condensation of water vapor in the absorption liquid will be taken up by the air. The air is further heated by water vapor produce by regenerating the absorption liquid. According to a preferred embodiment of the invention, the source of the wet air is a suction box in the forming section, couch roll or pick-up roll of a paper machine and the hot air is used as pocket ventilation air in the dryer section of the paper machine.
Patent CA-2046639-A1 (CA)
Title: Radioisotope production facility for use with positron emission tomography
Inventor: DABIRI ALI E
IPC: G21G1/10
Filed: 1990-03-14
Abstract: A radioisotope production facility (12) produces radioisotopes having application to Positron Emission Tomography. The radioisotopes produced include 18F, 13N, 15O, and 11C, and are produced by irradiating a selected target material (40) with a high energy 3He++ beam accelerated in a radio frequency quadruple (RFQ) linear accelerator (34). The facility includes, in addition to the RFQ linear accelerator and the selected target, a source of 3He++ ions (30), low energy transport means (32) for focusing the 3He++ beam into the RFQ linear accelerator, and a high energy transport means (36) for directing the accelerated 3He++ beam at the selected target. Further included is a target subsystem (16) that holds the target, automatically prepares precursors containing the 18F, 13N, 15O, and 11C radioisotopes, and an automated radiopharmaceutical subsystem (22) that prepares suitable radiopharmaceuticals from the desired precursors.
Patent CA-2048877-A1 (CA)
Inventor: OIKAWA TADAHISA
IPC: B41J25/312
Filed: 1991-08-09
Abstract: A thermal printer print head support device allows the position of the thermal print head printing element to be shifted to the front or the rear relative to the platen axis.  Thereby the printing pressure is varied and the print quality is optimized by matching the printing pressure to the different properties, such as thickness and hardness, of the printing media (tags, labels. etc.).
Patent CA-2049639-A1 (CA)
Inventor: TAYLOR GRAHAM W
IPC: F21V17/16
Filed: 1991-08-21
Abstract: ABSTRACT OF THE DISCLOSURE         A retaining clip is shown which is used to secure a lens element within a light fixture during a dislodging event, such as an earthquake or contact with a person or object.    This clip protects persons below from injury by the falling lens element or by falling glass, should the lens element or the light bulbs become broken during the event.  The clip includes a jaw portion which securely fastens the clip to the light fixture and a tail portion which provides a flattened surface on which the lens rests and a downturned portion to facilitate removal of the clips from the light fixture.  The upper jaw and tail portion effectively create an extension of the frame to provide a wider ledge on which the lens may then rest.  No tools are required for the installation or removal of the clips, and the clips are easily removed from the light fixtures for replacement of bulbs or for other maintenance.
Patent CA-2049674-A1 (CA)
Title: Scaffolding couplers for coupling together two scaffolding tubes and coupling elements and components for inclusion therein
Inventor: LOWE BRIAN F
IPC: E04G7/16
Filed: 1991-08-22
Abstract: ABSTRACT OF THE DISCLOSURE      Scaffolding couplers (19, 30, 33, 33') for coupling together two scaffolding tubes (2) include a coupling element (20, 30a, 34, 34') for engaging a scaffolding tube (2), the coupling element (20, 30a, 34, 34') comprising a central region (23, 31a, 35, 35') which lies between first (24, 24') and second (25, 25') connecting regions of the coupling element (20, 30a, 34, 34'). The connecting regions (24, 24', 25, 25') are adapted for connecting the coupling element to another component, that is a flap 21, of the coupler, each of the connecting regions (24, 24', 25, 25') having a pair of substantially planar supporting portions (26) connected to said central region (23, 31a, 35, 35') by means of a further portion (27) of the connecting region (24, 24', 25, 25') which extends between them and projects outwardly from the said central region (23, 31a, 35, 35').  The said supporting portions (26) of each connecting region (24, 24', 25, 25') project approximately perpendicularly to at least part of said further portion (27) to provide respective supporting edges for contacting said scaffolding tube and extend beyond a boundary of the said further portion (27) which is remote from the said central region (23, 31a, 35, 35') so as to form the walls of a slot (28).  The ends of the walls are formed, on respective edges thereof opposed to said supporting edges, with respective hook-like retaining projections (29a, 29b), the said slot (28) and the said retaining projections (29a, 29b) being for use in connecting the coupling element (20, 30a, 34, 34') to the flap 21.     Such couplers can be stronger, and easier to manufacture, than some prior art couplers.
Patent CA-2050152-A1 (CA)
Inventor: GREEN MARTIN R
IPC: G11B5/48
Filed: 1991-08-28
Abstract: A  transducer  head  skew  arrangement  used  in  a multiple disk drive data storage system is provided.  The disk  drive  unit  includes  a  plurality  of  magnetic  disk surfaces mounted for simultaneous rotation about an axis.  A first sequence of servo information tracks are arrayed on a dedicated servo disk surface.  At least one servo reference track is written on each data disk surface for storing servo reference information.  The servo reference track is written on a first data disk surface aligned with a predefined servo information track on the dedicated servo disk surface.  Then servo  reference  tracks  are  sequentially written on  each successive  consecutive  data  disk  surface  progressively offset radially from the last written servo reference track. A plurality of data information tracks for storing data are disposed at predetermined positions relative to the servo reference track on each the data disk surface.   A servo transducer  head  is  mounted  for  movement  in  a  radial direction across the first dedicated servo information for reading  servo  information;   and  a  plurality  of  data transducer heads are mounted for movement with the servo transducer  head  in  a  radial  direction  across  the  disk surfaces for reading the  servo  reference tracks  and for reading and/or writing data to the data information tracks.          The  distance  moved by  transducer  heads  for  a cylinder switch is the same distance moved for each head switch,  so that  track-to-track  seek  time  is  minimized without requiring any additional time delay for each head switch.  An overall data transfer rate increases for every data transfer accessing more than one data cylinder.
Patent CA-2050740-A1 (CA)
Title: Device for attracting moths
Inventor: COAKER THOMAS H
IPC: A01M1/20
Filed: 1991-09-05
Abstract: Abstract of the Disclosure Device for attracting moths, for example Ephestia Cautella, which comprises at least one external surface exhibiting light and dark stripes which are vertical when the device is disposed for use, there being present on or in the device a substance e.g. a pheromone which is an attractant for moths.
Patent CA-2050829-A1 (CA)
Inventor: MCCARTNEY THOMAS
IPC: H02J9/06
Filed: 1991-09-06
Abstract: An external DC (direct current) power supply is provided for supplying backup DC power to a supported device having an AC input connector. The power supply includes an AC (alternating current) voltage source. A voltage rectifier is coupled to the AC voltage source for rectifying the AC voltage source. An energy storage device coupled in parallel to the voltage rectifier provides a predetermined DC voltage threshold level. A connector of the external DC power supply applies a power output of the parallel combination of the voltage rectifier and the energy storage device to the AC input connector of the supported device.        The external DC power supply is capable of reliably, effectively and efficiently supplying backup power to the AC power input of a supported system without requiring any special wiring or modification of the supported system using only the AC input plug for connection to the supported system.
Patent CA-2050952-A1 (CA)
Inventor: GUERET JEAN-LOUIS H
IPC: A46B9/02
Filed: 1991-09-11
Abstract: 14 BROSSE POUR L'APPLICATION D'UN PRODUIT COSMETIQUE, EN PARTICULIER SUR LES CILS OU LES CHEVEUX, ET PROCEDE D'OBTENTION D'UNE TELLE BROSSE . La brosse (1) comprend une multitude de poils (4, 5) implantés transversalement dans une âme (2), en particulier formée par des spires métalliques torsadées, une partie au moins des poila étant formée par un mélange de poils de section relativement importante (4) et de poils de section relativement faible (5). Dans au moins une zone de la brosse, les poils de section relativement importante (4) ont une longueur supérieure aux poils de faible section (5) et au moins les extrémités extérieures des poils de faible section (5) comportent un renflement (6). (Figure 1).
Patent CA-2052313-A1 (CA)
Title: Suture guide and method of placing sutures through a severed duct
Inventor: GOTTESMAN JAMES E
IPC: A61B17/00
Filed: 1991-09-26
Abstract: Abstract of the Disclosure A suture guide and, in particular, a urethral sound having interchangeable tips for placing sutures in the severed end of a body duct.  The urethral sound includes an attachment mechanism having interconnection parts longitudinally rotatable when interconnected.  The sound further includes an elongated member having a distal end portion including one of the interconnection parts.  A plurality of interchangeable tips are provided each having a rounded distal end and a proximal end including the second interconnection part.  Interchangeable tips are positioned at the distal portion of the elongated member and are longitudinally rotated thereat.  Various tips include one or more apertures for placing sutures through, for example, a severed urethral stump created during a radical prostatectomy.  Channels are also placed in a number of the tips to provide placement of individual sutures about the distal end of the severed stump as desired by the physician. The method includes positioning the urethral sound tip out the distal end of the duct with an aperture in the tip partially protruding from the duct.  A suture thread is passed through the aperture and cut to form two equal length suture pieces on the opposite sides of the duct.  The urethral sound tip is rotated to further position additional suture pieces about the severed end of the duct.  The pieces are formed by cutting the suture extending through the aperture at the mid-point thereof.
Patent CA-2052955-A1 (CA)
Title: Machine for detaching tie anchors
Inventor: THEURER JOSEF
IPC: E01B29/32
Filed: 1991-10-08
Abstract: A machine for detaching tie anchors from the rails of a railroad track comprises a self-propelled machine frame mounted on undercarriages for movement along the track in an operating direction, and two workheads mounted on the machine frame and positioned opposite each other in a direction extending transversely to the machine frame. Each workhead is associated with a respective rail for detaching the tie anchors therefrom and comprises a hammer arranged to press against a field-side tie anchor end, and drives for adjusting the hammer vertically and in a direction extending longitudinally with respect to the machine frame for pressing the hammer against the field-side tie end.
Patent CA-2054906-A1 (CA)
Title: Multi-frequency differentially encoded digital communication for high data rate transmission through unequalized channels
Inventor: MOOSE PAUL H
IPC: H04L27/26
Filed: 1991-03-05
Abstract: SUBSTITUTE                       REMPLACEMENT               SECTION is not Present Cette Section est Absente
Patent CA-2056988-A1 (CA)
Inventor: WONG RAYMOND S C
IPC: A01H5/10
Filed: 1991-03-27
Abstract: Improved rape plants, seeds capable of forming the same, and a novel improved edible endogenous vegetable oil derived from the rapeseeds are provided. The rape plants upon self-pollination are capable of forming rapeseeds which yield an im-proved vegetable oil following crushing and extraction having a saturated fatty acid content of no more than 4 percent by weight in the form of stearic and palmitic acids based upon the total fatty acid content. A relatively low concentration of erucic acid also is exhibited. The novel rape plants of the present invention can be formed by mutagenesis followed by selection. The endogenous vegetable oil produced by the present invention is particularly well suited for use as a vegetable oil. In a preferred embodiment the plants additionally possess herbicide tolerance which facilitates their survival when unwanted plants which lack the reduced saturated fatty acid content are climinated through the use of a herbicide.
Patent CA-2057223-A1 (CA)
Title: Envelope flap unfolder and enclosure inserter with jam-clearing access
Inventor: MROZINSKI CURTIS
IPC: B43M3/04
Filed: 1991-12-06
Abstract: Apparatus is disclosed for flapping envelopes and insert-ing enclosures into the flapped envelopes. The apparatus is con-structed so that parts thereof may be easily moved to substan-tially fully expose the enclosure feed path, as well as the en-velope flap unfolding path and the upstream end of the location at which an envelope is held open and enclosures inserted there-in, thereby facilitating removal of jammed envelopes and en-closures. The components for unfolding the envelope flap are provided as an assembly movably mounted with respect to the en-closure transporter. This allows that entire flap unfolding as-sembly to be moved away from an enclosure transporter, thereby providing access to the enclosure feed path and to the upstream end of a queuing station. The flap unfolding assembly includes two frames which may be pivoted apart to provide access to the flap unfolding path.
Patent CA-2062375-A1 (CA)
Inventor: MIKOLAJEWICZ ROMAN J
IPC: C08F2/32
Filed: 1992-03-06
Abstract: A thickener for products for topical application such as personal care products for application to the skin or hair, or topically administrable pharamaceutical preparations, comprises a water-in-oil emulsion containing polymeric material, at least 98% of which polymeric material is soluble in the aqueous phase. The polymeric material comprises units derived from (a) acrylamide, (b) 2-acrylamido-2-methylpropane-sulphonic acid and (c) a polyfunctional monomer, present in an amount of from 0.12 to 2 milliequivalents per mol of total monomer units. At least some of the units of the 2-acrylamido-2-methylpropane-sulphonic acid are in the form of a neutral salt such that the aqueous phase of the water in oil emulsion has a pH of at least 5.5.
Patent CA-2065190-A1 (CA)
Inventor: VANDENBERG ERVIN
IPC: B60S9/04
Filed: 1992-04-06
Abstract: A landing gear (10) for semitrailers includes a two speed double reduction gear assembly (34, 40) having fewer, smaller, and simpler parts, resulting in a compact double reduction gear assembly housed in a relatively small gear box (55) or entirely within one of the landing gear legs, which is a cost efficient landing gear unit with a unique clutch-shifting mechanism (85, 86) to provide for shifting from one ratio to another. The double reduction gear assembly is disposed on and about in-line input and output shafts (75, 42) further resulting in an easy to crank and shift landing gear unit capable of achieving standard crank handle turn to vertical leg travel distance ratios. The low gear or low speed ratio of the landing gear unit can be varied within a broad range during manufacture, if desired, generally without increasing the overall size or complexity of the two speed double reduction gear assembly. The landing gear can further include a universal mounting feature (16) and is durable and simple to use. <IMAGE>
Patent CA-2068097-A1 (CA)
Inventor: FONTICHIARO DOMINIC
IPC: F01L3/02
Filed: 1992-05-06
Abstract: A composite intake or exhaust valve for an internal combustion engine is disclosed. The composite engine valve comprises a valve head of lightweight, heat resistant metal alloy material and a valve stem of lightweight, heat resistant ceramic based material. The valve head has an integral valve head insert around which the valve stem is molded to integrate the valve head and valve stem into a composite valve. The valve head insert is provided with anti-rotation means to prevent rotation of the valve head relative to the valve stem during use. The valve head insert is also provided with anti-tension means to prevent separation of the valve head from the valve stem during use.
Patent CA-2068919-A1 (CA)
Title: Composition for cleaning wood plastic and metal surfaces
Inventor: SAURWEIN H PETER
IPC: C11D9/12
Filed: 1992-05-19
Abstract: COMPOSITION FOR CLEANING WOOD PLASTIC               AND METAL SURFACES              Abstract of the Disclosure There is disclosed a general purpose cleaning composition  including  potash,   a  soap,   an  aqueous solution of ammonia,  washing soda,  nitric acid and water.   The cleaning composition may be used on wood surfaces, as well as on plastics and aluminum.
Patent CA-2069799-A1 (CA)
Inventor: BRASSIER MARC
IPC: B60Q1/30
Filed: 1992-05-28
Abstract: 32 DISPOSITIFS D'ECLAIRAGE ET/OU DE SIGNALISATION UTILISES EN SITUATION DE BROUILLARD. Dispositif d'éclairage et/ou de signalisation, tel qu'un feu arrière de brouillard, dispositif notamment destiné à être embarqué à bord d'un véhicule comme une automobile et comportant des moyens d'éclairage et/ou de signalisation, caractérisé en ce qu'il comporte : - une alimentation électrique (1), - un circuit de commande (3) connectant l'alimentation électrique (1) auxdits moyens d'éclairage et/ou de signalisation (2) et activés (10) par des moyens détecteurs de brouillard (4), - les moyens détecteurs de brouillard (4) produisant un signal d'activation (10) quand une condition de non visibilité est atteinte dans le milieu sur le trajet des rayons lumineux (5,6) d'éclairage et/ou de signalisation. Application : Sécurité et confort du véhicule (Figure 1)
Patent CA-2072102-A1 (CA)
Inventor: BELL WELDON K
IPC: B01J29/04
Filed: 1990-04-09
Abstract: 2072102 9109829 PCTABS00005 An olefin is reacted with an alcohol to provide an ether or mixture of ethers employing as a catalyst a zeolite having X-ray diffraction lines of table (I).