baber/WOPTO huggingface dataset:
Patent CA-2018457-A1 (CA)
Title: Shielding apparatus for an electrical assembly
Inventor: SEDLMEIER PETER
IPC: H05K7/14
Filed: 1990-06-07
Abstract: ABSTRACT OF THE DISCLOSURE    Shielding apparatus for an electrical assembly.  A shroud that covers a front cover of the assembly is located at the front side of the electrical assembly that is insertable into a magazine.  The shroud is snapped onto  the  front  cover with  retaining  tabs  and has laterally resilient contact tabs that are contacted by contact tabs of neighboring shrouds.  As a result, the shrouds are directly connected to one another, so that only one electrical function between the shielding parts is  established  per  assembly.    In  particular,  the shielding effect is so effective that the shrouds can be utilized in radio-frequency electrical systems.
Patent CA-2023179-A1 (CA)
Title: Vehicle creep control
Inventor: FONTAINE WILLIAM G
IPC: B60T8/00
Filed: 1990-08-17
Abstract: Abstract A vehicle creep control system which has:  a speed transducer arrangement (2) coupled to the vehicle's speedo-meter cable or the like, which provides an active output whenever the vehicle stops;  an accelerator switch (21) connected to the accelerator pedal, which has an active output whenever the driver' 5 foot depresses the accelerator pedal;  a latching circuit (4) with a set input connected to the speed transducer arrangement and a clear input connected to the accelerator switch;  a first delay circuit (6) connected to the output of the latching circuit, such that when the latching circuit is set due to the vehicle slowing down to the given low speed value, a first set signal is connected to the delay circuit, which in turn produces a delayed output, after a given first delay time, so that the brakes are actuated and hold the vehicle. There is further provided a switch which may be a seat switch (22) which goes active if the driver leaves his seat, and sets a second delay circuit (24);  the latter goes active after a two-second delay has elapsed.  The second delay bridges any bouncing of the driver in his seat, and serves also to stop the vehicle in case the driver should be thrown from his seat for any reason.
Patent CA-2025260-A1 (CA)
IPC: F16H3/38
Filed: 1990-09-13
Abstract: GEAR KNOCKING SOUND PREVENTING DEVICE FOR TRANSMISSION          ABSTRACT OF THE DISCLOSURE A gear knocking sound preventing device for a trans-mission having a rotatable main shaft and a forward stage low speed shift shaft, a forward stage high speed shift shaft, and a forward stage maximum speed and reverse shift shaft.  These latter three shift shafts are selectively axially movable by actuation of a shift and select lever mounted on a shift and select shaft.  A gear knocking sound preventing device is provided and includes a cam mechanism having a first cam disposed on the shift and select shaft, and a second cam disposed on the forward stage low speed shift shaft so as to be engagable and disengagable with the first cam.  The first cam is activated by rotation of the shift and select shaft and is brought into engagement with the second cam during reverse shifting so that the forward stage low speed shift shaft is moved slightly axially to activate a forward stage synchronous meshing mechanism to thereby stop the rotation of the main shaft of the transmission.
Patent CA-2028734-A1 (CA)
Inventor: RAYNAUD GUY-MICHEL
IPC: H01M4/13
Filed: 1990-10-29
Abstract: Process for obtaining thin lithium-based sheets and its application to the production of negative plates for accumulators. 
<??>This process is characterised in that magnesium is added to the molten lithium bath and that the alloy obtained is rolled between steel rolls at room temperature. 
<??>This process makes it possible to produce negative accumulator plates which have electrical properties comparable with those of pure lithium.
Patent CA-2030199-A1 (CA)
Inventor: GSELL THOMAS C
IPC: D06M101/16
Filed: 1990-11-16
Abstract: A filter medium is provided comprising a fi-brous matrix to whose surfaces is grafted a super-strate comprising a polymer with quaternary ammonium groups and made from an ethylenically unsaturated monomer containing a quaternary ammonium or amino group, the filter medium having a positive zeta potential at pH 7 and preferably an enhanced Latex Adsorption Capacity together with low extractables and quick rinse-up.
Patent CA-2031850-A1 (CA)
Inventor: BOSENIUS CHARLOTTE
IPC: D21C9/10
Filed: 1990-12-10
Abstract: A method of bleaching pulp of cellulosic fibrous material in the production of chemical pulp in a bleach plant is described wherein the entering pulp is fed continuously in a bleaching line thereof. The method comprises the step of bleaching the pulp with chlorine dioxide and ozone in one and the same stage which is started with chlorine dioxide and followed by ozone. Chlorine dioxide and ozone are added at points separated from each other and each at at least one point in the bleaching line. Said stage is free from intermediate washing between the points where chlorine dioxide and ozone are added.
Patent CA-2034041-A1 (CA)
Inventor: WEST GORDON W
IPC: A47C27/08
Filed: 1990-10-10
Abstract: ABSTRACT OF THE DISCLOSURE       A relatively shallow mattress for a bed which has three integral parts:  an inner bladder,  an outer bladder and a mattress  cover.    The  inner  bladder  is  formed  from  a rectangular top and bottom side welded together along the edges.  The top side contains a valve.  The outer bladder is effectively  a  safety  cover  for  the  inner  bladder.    It surrounds the inner bladder and but for a circular opening which allows access to the valve on the top side of the inner bladder, it is fluid tight.  It is made in a similar fashion to the inner bladder which it permanently encloses.   The mattress cover has an upper surface made of a quilted ticking.          This ticking incorporates a thermal barrier layer.    The mattress cover has a bottom and sides made from a relatively light  woven  cloth  fabric.    The  mattress  cover  totally surrounds the bladder.  An elongate zipper along the edge of the top surface allows insertion of the bladders and access to the valve used for filling.
Patent CA-2034755-A1 (CA)
IPC: B65D90/26
Filed: 1991-01-22
Abstract: TWO STAGE AUTOMATIC SHUT OFF VALVE      ABSTRACT          A shut off valve assembly for preventing overfilling of an underground fuel storage tank or other storage tanks where the incoming flow is not metered, utilizes a two stage valve closure, the first stage closure signaling the tank is nearly filled to capacity and the second stage closure subsequently completely stopping flow into the tank.
Patent CA-2038302-A1 (CA)
Inventor: KACZMARCZYK EDWARD T
IPC: E02F3/96
Filed: 1991-03-14
Abstract: A loader mounting arrangement includes a pair of mounting frames secured to the opposite sides of the tractor frame for receiving the lower ends of the loader mast posts.  Each bracket includes a transversely extending pin for receiving a C-shaped forwardly opening front portion of the mast post. The rear of the mounting frame opens upwardly to guide the aft portion of the mast post end as the mast post is rocked downwardly about the axis of the rod.  Projecting pin-receiving bushings in the aft portion of the mast post end are received within mating upwardly opening pockets in the mounting frame.  The bushings are positively forced into the pockets by operating the boom lift cylinders with the loader attachment on the ground to assure alignment of the mast post end and the bracket.  With the bushings forced downwardly into the fully seated position within the pockets, holes in the bracket are aligned with the bushing bores, and a locking pin is easily inserted to secure the mast post to the tractor.
Patent CA-2039382-A1 (CA)
Inventor: OMDOLL PAUL A
IPC: A47K10/36
Filed: 1991-03-28
Abstract: A device for dispensing flexible sheet material, such as paper toweling, from a roll has a feed mechanism including a crank- or lever-operated roller having a drive section and a pressure element engageable with toweling extending around a portion of the roller.  The pressure element is spring-biased toward the outer surface of the roller drive section and provides sufficient friction between the roller drive section and the toweling to cause it to be unwound from a roll and advanced for dispensing with out the need for an idler roller which can cause jamming.  In one embodiment, a transfer assembly is provided for sequentially dispensing toweling from a primary roll and a reserve roll, after all the toweling has been dispensed from the primary roll.  The transfer assembly is mounted for movement between a non-transfer position, where a sensing arm is biased into engagement with the outer surface of toweling on the primary roll to effectively sense the thickness of both the toweling on and the roll core of the primary roll and a pair of transfer legs on a transfer arm are spaced outwardly from the outer surface of the roller, and a transfer position, where the sensing arm engages the outer surface of the primary roll core and the transfer legs push toweling from the reserve roll against the outer surface of the roller and cause it to be fed between the dispensing surface of the pressure element and the roller drive section.
Patent CA-2039712-A1 (CA)
Inventor: YAMAGISHI MASAHIRO
IPC: A63B59/00
Filed: 1990-08-27
Abstract: ABSTRACT    This invention relates to sports instruments with which the impact or vibration transmitted to the body such as arms and legs of a user when the instrument is used is largely reduced, and to an impact-absorbing element which is used by being attached on sports instruments.    The sports instrument according to the present invention comprises as at least a part of the material constituting said sports instrument a vibration-reducing material having a vibration loss coefficient of not less than 0.01 at room temperature.    The impact-absorbing element according to the present invention is to be used by being attached to a sports instrument, which comprises a vibration-reducing material having a vibration loss coefficient of not less than 0.01 as at least a part of the material constituting the element, and has a weight of not less than three grams and a height of not lower than 3 mm, the impact-absorbing element being attached to a sports instrument such that at least an end thereof is free so as to allow the induction of microvibration or micromovement following the vibration and impact transmitted from the outside of the impact-absorbing element.
Patent CA-2040129-A1 (CA)
Title: Catalysts for the conversion of propane and butane
Inventor: HUTCHINGS GRAHAM J
IPC: B01J37/06
Filed: 1991-04-10
Abstract: A modified natural clinoptilolite, produced by treating a natural clinoptilolite with a suitable mineral acid or with a suitable alkali and then with a suitable mineral acid, is used as a catalyst in a process for the conversion of propane or butane to give a product containing at least 40% of ethene, propene or C4 hydrocarbons or a mixture thereof.
Patent CA-2040465-A1 (CA)
Title: Sparkling marker for a bingo game and the like
Inventor: STEFFKE SANDRA B
IPC: C09K3/00
Filed: 1991-04-15
Abstract: Abstract of the Disclosure A marking system for use in playing lotto games such as bingo having an ink solution with a plurality of mica based titanium oxide coated platelets 28 that pass through an applicator 20 from the interior of container 10 onto a paper sheet 32 printed with a plurality of bingo games 34 to mark the called number 36 with a transparent colored ink solution 42 having a reflective sheen.
Patent CA-2040532-A1 (CA)
Title: Support linkage for mounting a header on a support frame
Inventor: TALBOT FRANCOIS RENE
IPC: A01D47/00
Filed: 1991-04-16
Abstract: SUPPORT LINKAGE FOR MOUNTING A HEADER ON A SUPPORT FRAME      ABSTRACT OF THE DISCLOSURE     The header support linkage of a swather header on a support frame of a swather comprises a substantially vertical beams an upper cross arm formed from a channel and a lower support cradle arm projecting outwardly from the bottom of the beam. A lower link projects from the frame forwardly to engage the lower part of the beam and is formed by an expandable cylinder to lift the header. An upper link extends from an upper part of the frame along the inside of the channel forming the upper arm. A cylinder extends from a lower part of the frame to a lever pivotally connected to the upper link providing a lost motion connection. An adjustable stop is provided between the upper link and the inside of the upper arm. A float spring is connected between an outer end of the upper arm and a vertically adjustable slide provided on the frame. The linkage provides adjustment for different header weights and an effective lifting action of the header from a preset cut height to a raised position both by a lifting action and by a floating action.
Patent CA-2041068-A1 (CA)
Title: Plated steel sheet having two plating layers and excellent in antifriction, corrosion resistance and painting adaptability
Inventor: SAGIYAMA MASARU
IPC: B32B15/18
Filed: 1991-04-23
Abstract: PLATED STEEL SHEET HAVING TWO PLATING           LAYERS AND EXCELLENT IN ANTIFRICTION, CORROSION RESISTANCE AND PAINTING           ADAPTABILITY            ABSTRACT OF THE DISCLOSURE         A plated steel sheet having two plating layers and excellent in antifriction, corrosion resistance and painting adaptability, which comprises: a steel sheet; a zinc plating layer formed on at least one surface of the steel sheet; and an electroplating layer formed on the zinc plating layer.  The zinc plating layer has a plating weight of from 25 to 150 g/m2 per surface of the steel sheet.  The electroplating layer comprises at least one element selected from the group consisting of chromium, manganese, iron, cobalt and nickel, and the electroplating layer has a plating weight of from 1 to 10 g/m2 per surface of the steel sheet.
Patent CA-2042060-A1 (CA)
Title: Backlighting apparatus
Inventor: BOND DAVID L
IPC: F21V8/00
Filed: 1990-08-22
Abstract: Improved backlighting apparatus evenly illuminates positive and negative LCDs under all ambient lighting conditions. In-candescent lamps (301-304) provide light for distribution by a light pipe (101). The bottom of the light pipe (101) is selectively painted white to reflect light to the top of the light pipe (101) while the unpainted areas reflect light internal to the light pipe (101). controlling hot and dim spots. The corners of the light pipe (101) near the lamps (301-304) are dual angled to reflect the light into the center of the display. The burn-out of a lamp (301-304) will not substantially affect the even lighting capabilities of the appar-atus.
Patent CA-2043212-A1 (CA)
Inventor: RUNGE HARTMUT
IPC: D21F1/02
Filed: 1991-05-24
Abstract: In a method for resolving ambiguity in the determination of antenna angle of view and Doppler frequency in synthetic aperture radar (SAR), by evaluating the dependence of the Doppler frequency on the transmitting frequency a skew of the two-dimensional Fourier power spectrum or the two-dimensional autocorrelation function of radar data is measured in that the radar data are subjected to a range Fourier transformation and for the individual range frequencies in a following Doppler centroid estimator a Doppler centroid determination is carried out in the azimuth direction.            By this method the pulse repetition frequency ambiguities are eliminated without any demands having to be made on the data acquisition or a high image contrast; this method can therefore be applied to any region of the raw data matrix. Moreover, no azimuth compression is necessary.
Patent CA-2043506-A1 (CA)
Title: Width variable mold
Inventor: NEGISHI TOSHIO
IPC: B22D11/04
Filed: 1991-05-29
Abstract: ABSTRACT OF THE DISCLOSURE  This invention discloses a width-variable mold device for enabling to be used by placing a feed device for moving minor side members toward a movable direction and by varying steplessly the width of the mold within a certain range by means of the operation of the feed device, in a mold device formed in an approximately rectangular shape by both two mutually opposed major side members having slightly curved opposed surfaces so that their opposed interval may become maximum at the center portion and become minimum at both ends and two opposed minor side members bringing their both side ends into contact with the opposed surfaces of the major side members and placing between the major side members, wherein the major side members and the minor side members are equipped with their water cooled jackets at their outside, each of the major side members is suspended and supported to the support tables at both sides so as to move each of the major side members toward the direction where their opposed interval varies, and at the same time, each of the minor side members is suspended and supported to the upper portions of the major side members so as to move each of the minor side members toward the direction where their opposed interval varies.
Patent CA-2043675-A1 (CA)
Title: Electrical circuit breaker operating handle block
Inventor: GULA LANCE
IPC: H01H1/22
Filed: 1991-05-31
Abstract: ABSTRACT OF THE DISCLOSURE Apparatus which is mechanically connected to and out of direct contact of the handle arm of an electrical circuit breaker to prevent the operating handle of the circuit breaker from being moved to the OFF position, when the contacts of the circuit breaker are closed due to welded contacts or obstruction of the contact arm car-riers.
Patent CA-2047644-A1 (CA)
Title: Nucleic acid derivatives
Inventor: ICHIKAWA YUH-ICHIRO
IPC: C07D473/00
Filed: 1991-07-23
Abstract: ABSTRACT         A novel nucleic acid derivative represented by the following general formula (I) and physiologically acceptable salt thereof which are expected to have an antiviral activity:                                  (I) wherein B represents a nucleic acid base derivative; A1 and A2 represent, independently of each other, OR1 or OCOR1; R1 represents a hydrogen atom, a substituted or unsubstituted alkyl group or a substituted or unsubsti-tuted aryl group; ? represents a number of 0 or 1; and m and n each represents an integer of 0-2; provided that when ? and m are 0, n is 0 or 2.
Patent CA-2049277-A1 (CA)
Title: Keyless printing system for keyless lithographic printing
Inventor: BAIN LAWRENCE J
IPC: B41F31/06
Filed: 1991-08-15
Abstract: - i -ABSTRACT OF THE DISCLOSURE    In a keyless lithographic printing press having blanket cylinder  (10)  and plate cylinder  (15)  with printing plate mounted thereon,  an improved keyless printing systems having: a system (14)  for supplying dampening water to the plate cylinder (15) at least one form roller (16) in rotational contact with the plate cylinder (15); inking drum (11) in rotational contact with the form roller (l6); at least first and second transfer rollers (13, 17) in rotational contact with the inking drum (11); metering roller (20) having at least an oleophilic And hydrophobic surface which retains quantity of printing fluid, the metering roller (20) being in rotational contact with the first and second transfer  rollers  (13,  17);  and  a  system  (30)  for supplying printing fluid to the metering roller (20).
Patent CA-2049539-A1 (CA)
Title: Demodulating multiplexed signals
Inventor: HOLLIS TONY
IPC: H04J3/00
Filed: 1991-08-20
Abstract: ABSTRACT DEMODULATING MULTIPLEXED SIGNALS       Angle modulated time-division multiplexed signals are demodulated prior to demultiplexing using a quadrature demodulator to demodulate digitised samples of the signal so as to produce a demodulated multiplexed signal.     For each time slot of the multiplexed signal, the reference signal applied to the quadrature demodulator is determined by the value of the demodulated signal obtained in the corresponding time slot in the immediately-preceeding frame, this value being stored for use in the subsequent time slot. The demodulated multiplexed signals can be subsequently processed as required. A microprocessor may effect the demodulation. Phase or frequency modulation may be used.
Patent CA-2050435-A1 (CA)
Inventor: TONAI ICHIRO
IPC: H01L31/105
Filed: 1991-08-30
Abstract: A low doped semiconductive layer is formed an a semiconductor substrate of a highly doped first conductivity type, and first region of a highly doped second conductivity type is selectively formed at a portion of the semiconductive layer.  In a top-incidence type photo-sensing device having a pn junction area of the above structure as a photo-sensing region, the first region is surrounded by a second region of the second conductivity type formed at a portion of the semiconductor layer.  The second region has the same or larger depth as or than that of the first region.  Thus, even if a light is directed to the outside of the photo-sensing region, extra charges generated therein are absorbed by the second region and the flow of the extra charges into the photo-sensing region is prevented.
Patent CA-2051128-A1 (CA)
Inventor: BRINKHAUS STEFAN
IPC: F02B9/08
Filed: 1991-09-11
Abstract: PATENT     ABSTRACT OF THE DISCLOSURE A method and circuit for minimizing interference, in particular in connection with FM of PM reception, caused by noise interference with a useful signal, where interference-specific information is derived from a received signal, with aid of which an output signal is corrected at least during time periods of maximum interference, constituting a correction phase, and where the magnitude of an amplitude dip below a threshold value of the received signal, caused by interference signals, in the range of a maximum interference phase cycle, is used as the interference-specific information for causing correction to take place while the amplitude of the received signal is below the threshold value; and controlling the magnitude of the threshold value as a function of the slops of the respective amplitude dip in such a way that the threshold value is automatically increased with increasing slope of the amplitude dip and and as a function of the amplitude of the received signal preceding the amplitude dip.
Patent CA-2052642-A1 (CA)
Title: Stabilised styrene copolymers containing elastomer particles
Inventor: GILG BERNARD
IPC: C08F279/02
Filed: 1991-10-02
Abstract: Stabilised styrene copolymers containing elastomer particles Abstract of the Disclosure ABS copolymers and similar styrene or .alpha.-methylstyrene copolymers which contain an elastomer phase are stabilised against light-induced degradation by a) incorporation of a copolymerisable sterically hindered amine in, and b) addition of a non-copolymerisable sterically hindered amine to, the copolymer. Preferred sterically hindered amines are polyalkylpiperidines.
Patent CA-2054968-A1 (CA)
Title: Method and apparatus for molding a threaded product
IPC: B29C45/26
Filed: 1991-11-05
Abstract: ABSTRACT OF THE DISCLOSURE         A method and apparatus for molding a product having internal threads includes a threaded mold core and a device for rotating the mold core about the axis of its threads and for axially withdrawing the core from the mold at a rate that is related to the rate of rotation, according to the pitch of the threads.  This is accomplished by a cam, which is rotated in synchronism with the device that rotates the core, and a follower for displacing the core as the cam is rotated.  The cam follower is fixed with respect to the mold.  The cam and threaded core are positioned on a carrier, along with the device for rotating the core, such that rotation of the cam displaces the carrier away from the mold.  The core is inserted into the mold, prior to the molding process, by displacing the carrier toward the mold without rotating the core.  In one embodiment, the cam is rotated by a uni-directional motor such that resetting of the cam after the core is withdrawn is accomplished by forward indexing of the cam a small amount to a zero position.