baber/WOPTO huggingface dataset:
Patent CA-2031991-A1 (CA)
Title: Shield plate mounting structure for helmet
Inventor: KAMATA EITARO
IPC: A42B3/22
Filed: 1990-12-11
Abstract: ABSTRACT OF THE DISCLOSURE    A shield plate mounting structure for a helmet com-prises a supporting cylinder formed on one of a mounting base plate and shield plate fixedly secured to an outer surface of a cap body, a pivot section formed on the other, the pivot section turnably fitted in the supporting cylind-and comprises, between the mounting base plate and the shield plate, stopper means for normally restricting a fully opened position of the shield plate but releasing the restriction when a predetermined resilient deformation is imparted to the shield plate, and engaging means for separating the mounting base plate and the shield plate from each other when the restriction of the stopper means is released and the shield plate is turned to a position past the fully opened position but for coupling the mount-ing base plate and the shield plate to each other when the shield plate is set in its service range between the fully closed position and the fully opened position.  A cover or screws are not required for mounting the shield plate in a simple structure.  Moreover, if the whole shield plate is of translucent, an engaging state, etc. can be visually observed, and the mounting of the shield plate becomes easier.
Patent CA-2035546-A1 (CA)
Title: Hand lift truck for transporting stacking chairs
Inventor: MUELLER ERNIE
IPC: B62B3/06
Filed: 1991-02-01
Abstract: A lift truck for carrying stacking chairs, the truck having a main frame carried on front and rear wheels and an elevating platform on the main frame and movable from a lowered inactive position to a stack lifting position. The forward end of the truck, which includes the main frame, front wheels and elevating platform, is of a width to allow the forward end to be pushed between the transverse spaced legs of the lowermost chair in the stack when the elevating platform is in the inactive position. The truck has rear wheel mounting structures which include arm sections which project forwardly of the rear of the lift truck and are disposed laterally outwardly from the sides of the main frame so as to position the rear wheels laterally outward from the main frame and forward of the rear of the main frame. The space between the arm section of the rear wheel mounting structure is open at the front thereof so as to receive the legs of a rear stack of chairs as the forward portion is pushed under the stack. An operator's handle is positioned in the rear of the main frame and a platform raising lever is located on the handle. The lift truck is readily maneuverable and is stable when carrying stacks of chairs which have relatively high centres of gravity.
Patent CA-2036877-A1 (CA)
Title: Apparatus for inspecting printed circuit boards
Inventor: WASSERMAN HAROLD
IPC: G01B11/24
Filed: 1991-02-22
Abstract: A printed circuit board inspection device includes a lighting system for use with the series of cameras associated with the printed circuit board inspection device which is essentially domed in configuration, and which incorporates a plurality of selectively controllable light emitting diodes for developing desired lighting patterns. The light emitting diodes are arranged within the domed fixture to form an array of defined latitudes and longitudes, and are capable of selective activation to develop the particular lighting patterns which are desired. This permits an acquisition of images useful in developing a "topographical display" of the acquired image, which is useful in enhancing the subsequent inspections which are to be performed.
Patent CA-2038062-A1 (CA)
Title: Azeotropes and the use thereof in the production of rigid foams
Inventor: DOERGE HERMAN P
IPC: C08G/
Filed: 1991-03-12
Abstract: Mo3402 PU-383 NOVEL AZEOTROPES AND THE USE THEREOF IN THE PRODUCTION OF RIGID FOAMS The present invention is directed to a novel azeotrope consisting essentially of from 35 to 45 % by weight of methyl formate and from 55 to 65 % by weight of 1,1-dichloro-1-fluoroethane, and the use thereof in the production of rigid, closed cell foams. Mo3402
Patent CA-2039113-A1 (CA)
Inventor: COME GUY-MARIE
IPC: C07C2/84
Filed: 1991-03-26
Abstract: "PROCEDE ET APPAREIL DE CONVERSION D'HYDROCARBURES SATURES " L'invention concerne la conversion des hydrocarbures saturés. Selon l'invention, on introduit dans une chambre (3) un premier gaz contenant du chlore et une deuxième gaz contenant de l'hydrogène, de manière a les mélanger. A la sortie (4) de cette chambre (3), on enflamme le mélange de chlore et d'hydrogène, et les produits issus de cette flamme sont alors mélangés dans une chambre (7) à un troisième gaz contenant les hydrocarbures à convertir, de teneur pondérale moyenne en élément hydrogène au moins égale à 18 %. Les effluents de la chambre (7) sont collectés, trempés et fractionnés. L'acide chlorhydrique est reformé en chlore qui est recyclé dans le premier gaz, l'hydrogène est recyclé dans le deuxième gaz, et les alcanes dans le troisième gaz. Les hydrocarbures insaturés sont récupérés. L'invention s'applique en particulier à la conversion des gaz naturels en hydrocarbures insaturés, tel que l'éthylène. Figure 1.
Patent CA-2040567-A1 (CA)
Title: Extendable electrical junction assembly
Inventor: BYRNE NORMAN R
IPC: H02G11/00
Filed: 1991-04-16
Abstract: In an office environment using movable wall panels, electrical junction assemblies including conduits of adjustable length are disposed in raceways near the lower edge of the panels. One embodiment of an adjustable length electrical junction assembly comprises a telescoping conduit to accommodate wall panels of different dimensions and to facilitate the placement of electrical outlets at appropriate locations. One type of telescoping conduit comprises two overlapping conduit sections of generally rectangular cross section and forming an inner spatial area for retaining excess wiring in a safe position. Another type of telescoping conduit comprises a conduit section of generally rectangular cross section and a generally flat multi-wire cable extending into the rectangular cross section conduit section to allow for lengthwise adjustability of the assembly. In another embodiment, an extendable flexible conduit is connected to a rigid connector assembly provided with an inner spatial area to accommodate excess wiring to allow wiring to move into and out of the connector assembly by extension and retraction of the extendable flexible conduit. The connector assembly is arranged to provide an electrical power outlet at an appropriate location.
Patent CA-2046440-A1 (CA)
Title: Insulating roll cover
Inventor: HART CHARLES M
IPC: F16C13/00
Filed: 1991-07-08
Abstract: The cover is free from asbestos and is therefore of more desirable construction for handling and use. For the roller cover, at least substantially ceramic fiber is highly compressed, providing a dense and refractory, elevated temperature resistant insulating cover. The cover may itself serve as a load bearing surface; or may provide a foundation or protective media for annular discs or sleeve members made of various, load bearing materials. These load bearing materials may be unable to resist direct contact with the shaft due to thermal shock or the differences in their respective expansion and contraction rates. Where impregnant is utilized with the highly compressed fiber, such will often comprise a colloidal substituent.
Patent CA-2047473-A1 (CA)
Title: Device for transferring individual sheets to the impression cylinder of a sheet-fed rotary printing machine
Inventor: GERMANN ALBRECHT J
IPC: B41F21/00
Filed: 1991-07-19
Abstract: The device has a transfer cylinder (2) with a drum (4) which is adjustable in the circumferential direction relative to its shaft (3) and which carries sheet grippers (8) with a front stop (8a) for the sheets (B). The diameter of the transfer drum (2) is equal to 1/N of the diameter of the plate cylinder which carries N printing plates. The shaft (3) of the transfer cylinder (2) rotates at a constant speed and executes N revolutions when the plate cylinder is executing one revolution. By means of a controllable setting device, the drum (4) is so displaced relative to the shaft (3) during each revolution that the front stop (8a), when its transfer position in which a sheet is transferred to the impression cylinder (D) is passed, assumes a position by which the exact register of this sheet in relation to the position of the printing plate printing it on the plate cylinder is set. This guarantees that the width of the front margin between the sheet front edge and print start is of the same size on all the printed sheets, without the need to adjust the printing plates exactly on the plate cylinder in a time-consuming way.
Patent CA-2048763-A1 (CA)
Title: Two state phase modulator with minimum amplitude modulation
Inventor: ERICKSON BERT K
IPC: G01S13/28
Filed: 1991-08-08
Abstract: TWO STATE PHASE MODULATOR WITH  MINIMUM AMPLITUDE MODULATION                ABSTRACT OF THE DISCLOSURE       The invention relates to a two state phase modulator with minimum amplitude modulation. The modulator assumes two phase states differing by .THETA. where .THETA. is a sub-multiple of 180° which permits a phase variation of 180° for phase coded transmissions when the frequency of the phase modulated carrier wave is multiplied by the reciprocal of the sub-multiple. Three equal components are derived in the phase modula-tor: an in-phase, an out of phase, and a quadrature phase component. The out of phase component is delayed in relation to the in-phase component by .THETA./2, while the quadrature phase component is delayed .THETA./4. The in-phase and out of phase components are then reduced by a factor (2 sin .THETA./2) selected such that when added to the quadrature component, the resultants have a magnitude equal to that of the quadrature component and differ in phase from the quadrature component by ?.THETA./2. The modulator output is formed of the resultants supplied in alternation with the quadrature component at zero phase being supplied during the transitions. Amplitude variation during the phase modulation process is reduced to a fraction of a decibel.
Patent CA-2051863-A1 (CA)
Title: Ridge roof vent
Inventor: CHUBB NORMAN L
IPC: F24F7/02
Filed: 1991-09-19
Abstract: RIDGE ROOF VENT                       Abstract  of the Disclosure A ridge roof vent adapted to be mounted on the ridge of a roof and comprising a top wall that is spaced from the remainder of the vent and is adapted to receive overlapping pieces of shingle  roofing material comprising  transversely extending primary indicia provided along the length of the ridge roof vent and including secondary transverse indicia associated with the transverse primary indicia in repetitive series,   Each series of  transverse primary indicia spans a distance less than the length of a shingle piece.   The transverse primary indicia associated with the secondary indicia are positioned such that when a first shingle piece is applied from one end, the end of the shingle piece will be positioned between a pair of equally spaced secondary indicia and can be used to provide an overlap of the ends of the shingle pieces without the need for measurement.   The ridge roof vent further  includes  a longitudinally extending line defining the center of the ridge vent and the transverse primary indicia intersects the line.          The ridge roof vent further includes longitudinally extending indicia corresponding to dimensional increments such that they serve as a guide for cutting the vent where the roof is such that a equal number of ridge vents cannot be used and a ridge vent needs to be cut.
Patent CA-2055101-A1 (CA)
Inventor: AHMED OSMAN
IPC: F24F11/00
Filed: 1991-11-07
Abstract: A  system  whereby  the  pressure  of  a  room containing one or more fume hoods, such as a laboratory, is to maintained at a predetermined level relative to the pressure of a reference space in the building, which may be the pressure in an adjacent corridor or an adjacent room or the like.  The system involves a room controller which is part of the heating,  ventilating and air conditioning apparatus of the building.  The room controller is of the type which can receive electrical signals from each fume hood controller,  which signals are proportional to the volume of air that is being exhausted through each fume hood.  The volume indicating signals communicated from each of the fume hood controllers to the room controller enable the system to modulate the volume of air that is being supplied to the room and thereby maintain the differential pressure  at  the  desired  level  with  relatively  quick response times.
Patent CA-2055548-A1 (CA)
Title: Low resistance electrical heater
Inventor: VAN EGMOND CORNELIS F H
IPC: H05B3/12
Filed: 1991-11-14
Abstract: A subterranean electrical heater comprising an electrical heating cable (9, 10) arranged in a partly cased well borehole (1) having a heating core comprising about 6 percent by weight of nickel and about 94 percent by weight of copper, a mineral insulation surrounding the heating core, a sheath surrounding the mineral insulation, cement (23) securing the heating cable (9, 10) in the well borehole (1) in the formation zone (22) to be heated; and a means (1, 2) to supply electrical power through the heating cable (9, 10).
Patent CA-2055957-A1 (CA)
Title: Vinyl-containing, silanol-terminated silicone compositions for treatment of fillers
Inventor: EVANS EDWIN R
IPC: C08K9/06
Filed: 1991-11-21
Abstract: Docket No.: 60SI-1384 Abstract of the Invention A composition is provided for treating silica filler in-situ, comprising a silanol-terminated, vinyl-containing polydiorganosiloxane having the general formula:       wherein R is a monovalent substituted or unsubstituted hydrocarbon radical; R1 is R or a halogenated alkyl radical; R2 is R or a halogenated alkyl radical; "a" is a number in the range of from about 1 to about 30; "b" is a number in the range of from 0 to about 50; and"c" is a number in the range of from 4 to about 30; the vinyl content of the polydiorganosiloxane being in the range of from about 1 to about 20% by weight and the silanol content being in the range of from about 0.1 to about 6% by weight. Preferably, R and R1 are methyl, R2 is methyl or 3,3,3-trifluoropropyl, and b is 0.   The invention is further directed to a method for treating silica filler with the treating composition above and to silicone elastomeric compositions containing filler treated with the treating composition.
Patent CA-2057086-A1 (CA)
Title: Method and apparatus for attaching parts of buildings or other articles to a support structure
Inventor: GLICKMAN MICHAEL N
IPC: E04B1/41
Filed: 1991-12-05
Abstract: A METHOD AND APPARATUS FOR ATTACHING PARTS OF BUILDINGS OR OTHER ARTICLES TO A SUPPORT STRUCTURE                             ABSTRACT   Building or like parts can be attached to a support structure, such as the wall of a building, by using an elongate attachment member 10 or 40. Coping or capping stones 32 or 50 may be similarly attached to the top of a wall. The attachment member has to opposed outwardly-extending resilient latch portions, 18a, 18b, 48a, 48b and, in a region away from the latch portions, an outwardly-extending anchor portion, or a pair of anchor portions.
Patent CA-2061811-A1 (CA)
Inventor: VAN HEUGTEN ANTHONY Y
IPC: A61M39/00
Filed: 1992-02-25
Abstract: A catheter device is disclosed which contains a catheter in an insertion needle. The insertion needle is attached to a needle hub which contains a flash chamber.      Within the flash chamber the proximal end of the needle is connected to a clear plastic tube so that flash is initially determined in this tube; overflow flash is then caused to flow into the larger flash chamber from the flash tube.
Patent CA-2062020-A1 (CA)
Title: Leaf paper bundling apparatus
Inventor: MORIYA KOICHI
IPC: B65B27/08
Filed: 1992-02-27
Abstract: The present  invention relates  to a  leaf paper bundling apparatus  that  enables  the  insertion of  leaf paper  to  be  bundled  by  the  bundling  apparatus  to  be performed  from  either  the  front  or  the  top  of  the apparatus, and that has both improved convenience of use and a more compact apparatus itself.   In the leaf paper bundling apparatus which winds a tape around many leaves of leaf paper which have been stacked, uses a cutter to the wound tape and a thermo-adhesion head to thermally adhere the cut  ends and bundles leaf paper,  there  is provided a lead paper insertion opening portion having a slit shaped opening upwards from the forward portion of the main apparatus unit and into which lead paper to be bundled is inserted uprightly from a front or a top of the main apparatus unit.   Leaf paper regulation devices regulate a position of a lower edge of leaf paper which has been inserted uprightly from an upwards or forward direction of the insertion opening portion in the main apparatus unit and an edge opposite a forward region of the main apparatus unit.   A tape supply device supplies tape  to  be  wound  around  a  periphery  of  leaf  paper, applies a tension to wound tape and tighten the  tape wound around a periphery of leaf paper.  A tape winding device has an arm which can hold an end of tape fed from the tape supply device and can swivel to wind tape around from a standby position and around leaf paper.   A leaf paper holding device is also provided so as to tighten tape wound around a periphery of leaf paper and holds a paper surface of leaf paper in the vicinity of portions on both sides in the direction of the width of the tape wound around a periphery of the leaf paper paper.
Patent CA-2064459-A1 (CA)
Title: Oil slick separator 1
Inventor: JOHNER ROBERT W
IPC: E02B15/04
Filed: 1992-03-30
Abstract: DEVICE FOR HIGH CAPACITY RECOVERY OF SPILLED OIL AND   OIL/WATER MIXTURES FROM A WATER SURFACE AND HIGH   RATE SEPARATION AND STORAGE OF THE RECOVERED    MIXTURE FOR PUMPAGE OF THE OIL TO AN OIL            STORAGE VESSEL                        Abstract A  device for the high rate recovery of oil or an oil/water mixture  from  a water surface and then to separate the oil from  the  water  at  a  high  rate  and store it for later pumping  (or  continuous  pumping)  to  other  oil  storage vessels for shipping to refinement facilities.          The   vessel   utilizes   a   hydrodynamically  stabilized, air-float  controlled  skimmer  or  skimmers  which  may be adjusted  to  skim at or below the water surface to collect the oil and/or oil/water mixture.          The  skimmer(s) direct the fluid to high capacity submerged hydraulically  driven  pumps  which  intake  the  fluid and disperse  the  fluid  through  a centrifuge or a centrifuge pipe  into  a large volume collection and separation vessel which  is  also  hydrodynamically  stabilized and air float controlled.    The  oil  and  oil/water  mixture is further separated  in the vessel due to fluid flow rate, fluid path and  physical  properties  of  the  fluids and the physical size and dimension of the container.          The  separated  water  is  directed  out  a  portion of the bottom   of   the   separation  vessel  which  is  open  to atmosphere  while  the  oil remains floating in the vessel. A   second  set  of  float  adjusted  hydraulically  driven submersible  high  capacity  pumps remove the separated oil from  the  separator  in a continuous operation, or the oil may  be  stored  in  the  separator  for later pumpage to a storage and shipping vessel.          The  complete  device  is self contained, floats on its own and  contains  its own prime mover for pumps and hydraulics and may be self propelled, pushed or towed.          For  stationary use the skimmer(s) and separator vessel may be  located  apart from each other such that the skimmer(s) could  be floated on a fluid surface to collect oil and the separator  (vessel)  could  be  located  on  land  at  some distance  and the two components would be connected only by piping and/or hoses.
Patent CA-2067228-A1 (CA)
Title: Drug delivery system, method for preparing the same and use thereof
Inventor: FJELLSTROEM TORSTEN
IPC: A61K9/22
Filed: 1990-10-22
Abstract: This invention relates to a drug delivery system com-prising one or more pharmacologically active substances and a polysaccharide matrix having pseudoplastic properties, to a method for preparing the same, and to the use thereof for providing slow release of the active substance(s) in a biocom-patible environment following in vivo injection thereof. The method enables combining of the active substances and the matrix without prior suspending or dissolving the former in an aqueous media. The drug delivery system allows injection of aggregated drugs giving prolonged drug release in a bioc-ompatible environment.
Patent CA-2068257-A1 (CA)
Title: Rotation of a document through a finite angle
Inventor: TRAISE JOHN E
IPC: B65H9/10
Filed: 1992-05-08
Abstract: ABSTRACT      Sheets, such as business forms, are turned 80 that their orientation is changed from landscape to portrait mode, or vice versa.  Simple apparatus effects sheet rotation, and includes a conveyance surface on which a sheet travels in a first direction, first and second rollers for engaging the sheet traveling on the conveyance surface, and first and second drives (e.g., D.C. stepper motors) for driving the first and second rollers independently of each other.  A sensor senses the position of the sheet just downstream of the rollers, and a controller (computer) -- in response to the sensor --controls the speed and direction of rotation of the motors so that one roller rotates with a given tangential speed in a first direction of rotation, while the other roller rotates at that same speed in an opposite direction of rotation.
Patent CA-2074759-A1 (CA)
Title: Process for phosphate ester compounds of certain cyclohexapeptides
Inventor: BALKOVEC JAMES M
IPC: C07K1/113
Filed: 1992-07-28
Abstract: TITLE OF THE INVENTION          PROCESS FOR PHOSPHATE ESTER COMPOUNDS OF CERTAIN          CYCLOHEXAPEPTIDES     ABSTRACT OF THE DISCLOSURE        A facile process for preparing a compound of the formula or a salt thereof, wherein R, R1, R2, R3, R4, X, X1 Y and Z are as defined in the specification, by direct phosphorylation of the corresponding phenolic compound with tetrabenzyl pyrophosphate in the presence of lithium hydroxide is described.
Patent CA-2076275-A1 (CA)
Inventor: BLASKO VLADIMIR
IPC: H02M7/797
Filed: 1992-08-17
Abstract: The invention relates to voltage conversion devices, whether for inversion (constant voltage to alternating voltage), or conversion (alternating voltage to constant voltage).  It includes a pulse-width-modulator and a three-phase, three-legged bridge, each leg of the bridge having a pair of complementary switches (S1/S1*, S2/S2*, S3/S3*). One of the switches S1, S2 or S3 (S1*, S2* or S3*) conducts in those time intervals where the associated reference voltage UA UB or Uc has a higher (smaller) amplitude than the other two reference voltages.   According to the  present invention, (a) three reference  voltages are supplied, (b) the maximum of these voltages is detected, (c) the maximum is subtracted from the peak value of a triangle wave used for forming the PWM signal, and (d) the difference is added to each of the reference voltages to form augmented reference voltages supplying a PWM, which in turn supplies PWM signals to a three-phase semiconductor bridge.   The result is that when one of the three reference voltages is greater than the other two, a switch of one of the three complementary pairs of such switches in the bridge conducts, while in each of the other two complementary pairs, both switches open and close in response to the PWM signal such that only two currents are independently controlled by each of the two complementary pairs which are allowed to open and close, and the third current, associated with the complementing pair which is not allowed to switch, is controlled by the other two.   Keeping one switch in each leg closed for one-third of the period of the reference voltage allows control of all three load currents to be dictated by the switching in only two legs.