baber/WOPTO huggingface dataset:
Patent CA-1171998-A (CA)
Inventor: RAINEAR DENNIS H
IPC: D21H19/32
Filed: 1981-08-28
Granted: 1984-07-31
Abstract: ABSTRACT           Low temperature, fast curing compositions suitable for coatings, particularly for paper and other heat sensitive substrates, consist of certain epoxy resins, certain organopolysiloxanes containing silanol groups and contain organo aluminum catalysts. For example, glassine or Kraft paper are coated with a mixture of a cycloaliphatic epoxy resin having an epoxide equivalent weight of 140, a hydroxyl endblocked polydimetnylsiloxane having a degree of polymerization of about 10 and aluminum tris(acetylacetonate) and cured in one minute at 135°C.
Patent CA-1162144-A (CA)
Inventor: CROW ROBERT W
IPC: E21B34/00
Filed: 1981-09-25
Granted: 1984-02-14
Abstract: WELL SAFETY VALVE            Abstract of the Disclosure A well safety valve, connectable in a tubing string for controlling fluid flow therethrough, in which the valve closure means is operated by a longitudinally movable, telescoping tubular operating member.  High differential pressure across the closed valve closure means causes the tubular operator to telescope preventing damage to the closure means.  The tele-scoping tubular operator extends automatically upon release of the high differential pressure.  A piston rod type equalizing valve is provided which is engageable with the tubular operator in order to reduce pressure differential across the closure means prior to closure member opening forces being applied to the closure member by the tubular operator.
Patent CA-1171470-A (CA)
Inventor: WATANABE KOJIRO
IPC: H04L25/03
Filed: 1981-11-17
Granted: 1984-07-24
Abstract: Abstract of the Disclosure A fast start-up system is disclosed for a transversal equalizer comprising a transmitter capable of generating a periodic symbol sequence with a period L, the auto correlation function of said sequence being 0, except for its center.          The system generates and transmits a test signal based upon the generated symbol sequence.  A receiver generates the same periodic symbol sequence as that generated in the transmitter in a proper phase relation thereto according to a received signal.  The correlation between L sampled values and a sequence obtained by recirculating the periodic symbol sequence for each of consecutive N shifted phases, and for each of M' consecutive shifted phases is calculated.          The calculated M + M' correlation values are multiplied by a constant.  A discrete Fourier transform is obtained for the M + M' multiplied correlation values at N points equal to or greater than M + M' in number.  The values of a predetermined frequency characteristic for frequency points obtained from the discrete Fourier transform are stored.          The stored values are then divided by the respective values obtained by the discrete Fourier  transform and the inverse discrete Fourier transform of the N divided values is obtained.  The numerical values obtained as the inverse discrete Fourier transform are used to initialize the tap gain of a transversal automatic equalizer with a basic delay interval equal to one half the symbol interval, thereby permitting a sufficiently equalized state to be realized rapidly with a short test sequence.
Patent CA-1179489-A (CA)
Inventor: WINSLOW THOMAS W
IPC: G10D7/06
Filed: 1981-11-19
Granted: 1984-12-18
Abstract: METHOD AND MEANS FOR ATTACHING REED TO WIND INSTRUMENTS        ABSTRACT OF THE INVENTION       A ligature for single reed wind instruments is configured with independently and adjustably loaded, resiliently urged posts for contacting and retaining the reed against the instrument mouthpiece, thereby providing enhanced vibrational and response characteristics to the mouthpiece assembly.
Patent CA-1206386-A (CA)
Inventor: YOKOYAMA HIROSHI
IPC: F02B31/08
Filed: 1981-11-24
Granted: 1986-06-24
Abstract: ABSTRACT OF THE DISCLOSURE     A cylinder head for an internal combustion engine includes a primary intake passage for supplying an air-fuel mixture into a combustion chamber in a full range of load conditions and a secondary intake passage for supplying an air-fuel mixture into the combustion chamber under relatively high load conditions.  The primary intake passage has an out-let end opening into the secondary intake passage upstream of and adjacent to a valve seat for an intake valve having a stem extending partly through the secondary intake passage.  The primary intake passage and the outlet end thereof are smaller in cross section than the secondary intake passage and an out let end thereof, respectively, which opens into the combustion chamber.  The outlet end of the primary intake passage is oriented toward the stem of the intake valve so that the air-fuel mixture supplied from the primary intake passage will impinge upon and be disturbed by the valve stem when entering the combustion chamber.  The outlet end of the primary intake passage has a central axis extending either in or out of align-ment with a longitudinal axis of the valve stem.  The outlet end of the primary intake passage is defined by a nose pro-jecting into the secondary intake passage toward the valve stem for directing the air-fuel mixture to the latter.
Patent CA-1172289-A (CA)
Inventor: DALSEG JACK
IPC: B60P3/42
Filed: 1981-12-07
Granted: 1984-08-07
Abstract: "TELESCOPIC TRUCK TOP OR CAR ASSEMBLY"          ABSTRACT OF THE DISCLOSURE         Fixed cap shells are often engaged upon open truck bodies to form an enclosure for the protection and storage of materials carried within the truck or to convert the truck to a camper unit.  These are often removed when an open truck body is required or when the truck is not being used for recreational purposes and this is inconven-ient and difficult particularly when the truck body is re-latively large.  Furthermore when loading material onto trucks with the cap in places it is difficult due to the low head room provided and relatively tall loads cannot be loaded at all.  The present top cap assembly overcomes these disadvantages by having a fixed forward portion and at least one rear sliding portion telescopically engaged within the fixed portion and movable from a stored position fully engaged within the fixed portion to a fully extended position when the truck body is fully enclosed.  Tracks are provided along the top edges of the truck sides and sliders are provided on the lower sides of the cap walls engageable with the tracks to facilitate the sliding move-ment of the movable section or sections.
Patent CA-1181980-A (CA)
Inventor: KRAMMER KELLY A
IPC: A01B35/26
Filed: 1981-12-10
Granted: 1985-02-05
Abstract: ABSTRACT OF THE DISCLOSURE         Apparatus for tilling, weeding and generally working soil comprises a blade having a leading planar portion with ends.  This portion declines forwardly from the horizontal along a long axis and includes a broad, slightly curvilinear leading edge disposed in the plane of the leading portion.  The blade is strengthened by means of a trailing portion extending rearwardly from the leading portion and downwardly along the long axis to define a reinforcing gusset. A tang in the form of a U-shaped in-verted channel, centrally disposed on the trailing portion, further reinforces the blade by means of trailing edges converging inwardly and rearwardly from the ends to the channel and joining corresponding side walls of the channel at curvilinear gussets.  The blade structure is non-ggressive which forces fewer rocks and stones to the surface and provides a flat, shallow cut that remains uniform despite blade wear.
Patent CA-1193997-A (CA)
Inventor: RUIJGROK RUDOLPHUS P T
IPC: C25F3/04
Filed: 1981-12-17
Granted: 1985-09-24
Abstract: ABSTRACT:          Low-voltage aluminium foil for electrolytic capacitors having an enlarged effective surface, char-acterized by narrow long channels which repeatedly change their directions, The overall length of the channels, which have a diameter of approximately 0.2 micron is more than 5 microns. The zones on both sides of the foil, which zones have been provided with chan-nels, extend to substantially equal depth over the entire surface, a zone of at least 15 microns in the middle of the cross-section being of compact aluminium. This foil can be obtained by means of pulsed direct current etching.
Patent CA-1172593-A (CA)
Title: Goods waggon unloading mechanism
Inventor: LOENNROTH AARNE
IPC: B60P1/16
Filed: 1982-02-24
Granted: 1984-08-14
Abstract: Abstract of Disclosure An unloading mechanism for a goods waggon for use in railway or road transports with a goods container     having a cylindrical bottom and turnably mounted by its ends in bearings     on bogies.          The unloading mechanism comprises an arcuate guide     and a roller, one of the two being located on the goods container and the other beside the travelling path, and both when engaged in cooper-ation causing the goods waggon to turn about its longitudinal axis.          The drawback of unloading mechanisms of this kind known in prior art is that the tilting angle of the goods waggon is not large enough. As taught by the invention, the guide wraps on the under-side around the cylindrical part of the goods container    , ex-tending in helical configuration from one end to the other thereof so that its initial and ultimate ends are located in the horizontal plane passing through the axis of the cylindrical part. With the guide can be engaged in interaction two rollers which have been rotatably carried on supporting means       disposed on oppo-site sides of the travelling path. When the waggon is pulled to the unloading station, the first roller     at the initial end of this station comes into contact with the underside of the guide forcing as the waggon proceeds forward without stopping the goods container     to turn in its bogie bearings     through 180° about its longitudinal axis into inverted position. Hereafter the re-turning of the waggon into its transport position takes place by means of a second roller     located on the opposite side of the travelling path at a higher level and rotatably carried by a sup-porting means    , which roller when coming into contact with the upper side of the guide     forces the goods container     to turn another 180° about its longitudinal axis.
Patent CA-1179195-A (CA)
Inventor: ROGERS GEORGE L
IPC: F04B47/04
Filed: 1982-03-01
Granted: 1984-12-11
Abstract: Hydraulic Pumping Unit For Wells Abstract The present invention provides a hydraulic pumping unit, which is capable of pumping oil and other fluids from the downhole of a well.  The pumping unit includes a frame and multi-cylinder system which is attached to the frame in such a manner that it is gravity centered.  The bottom of the multi-cylinder system can be attached to the rod system of a well, and when the multi-cylinder system is expanded and contracted, the rod system and moving portion of the downhole pump of the well will be reciprocated back and forth, to bring (pump) oil or other fluid to the surface of the earth.  Many other features and facets of the pumping unit are also disclosed.
Patent CA-1164590-A (CA)
Inventor: CHEAL WILLIAM E
IPC: H04Q11/04
Filed: 1982-03-05
Granted: 1984-03-27
Abstract: SUBSCRIBER LOOP SYSTEM FOR VOICE AND DATA          Abstract of the Disclosure A subscriber loop system in association with a TDM telephone system provides voice and data communication with a remote telephone station set and an associated data port.  The subscriber loop system includes a voice path and a data path.  Supervisory and signalling circuits in the telephone set are used for generating and registering call control signals pertaining to both voice and data calls.  The call control signals are labelled and multiplexed with data signals by local and remote line interface circuits for transmission therebetween.  A codec in the voice path is caused to couple call progress signals (i.e. dial tone, ring back) to the telephone set during a data call progress, for audible signalling to a user.  Changeover relays are connected in combination with the data path and the line interface circuits such that the line interface circuits are bypassed in the event of power failure of the remote line interface circuit, to provide a more direct connection between the signalling and supervision circuits and the TDM telephone system whereby ordinary voice telephone service is maintained in the event of such failure.                             -i-
Patent CA-1163875-A (CA)
Inventor: MARCUS STANLEY A
IPC: B65D1/28
Filed: 1982-03-11
Granted: 1984-03-20
Abstract: Abstract of the Disclosure The use of organic-solvent-based coating compositions in the preparation of plastic coated steel feedstock for use in the manufacture of retortable draw-redraw food and beverage cans is substantially reduced or eliminated by using as such can feedstock a laminated or extrusion coated steel sheet having adhered to at least one, and preferably to both, major planar surface(s) thereof a layer of an adhesive synthetic thermoplastic resin composition having a crystalline melting point of at least about 121°C and comprising graft copolymer of high density polyethylene with an ethylenically unsaturated carboxylic acid monomer.
Patent CA-1150811-A (CA)
Inventor: NAKASHIMA HISAO
IPC: H01S5/00
Filed: 1982-04-22
Granted: 1983-07-26
Abstract: Abstract:    A phase-locked semiconductor laser device has a laminated structure in which a plurality of first semi-conductor layers having substantially the same composition are so stacked as to be sandwiched between second semi-conductor layers having a band gap wider and a refractive index lower than the first semiconductor layer.  A third semiconductor layer is disposed in contact with at least one side face of the laminated structure parallel to the traveling direction of a laser beam.  The third layer is not narrower in band gap and not higher in refractive index than the first semiconductor layers and does not have the same conductivity type as at least the first semiconductor layers.  Current is injected into an inter-face between the first semiconductor layers and the third semiconductor layer on the side face of the laminated structure.  An optical resonator for the laser beam is also provided.  Laser beams from the plurality of active regions will have a coherency of wavelength and phase, and a high optical output.
Patent CA-1167977-A (CA)
Inventor: STOCKMASTER EDWARD F
IPC: H05K7/14
Filed: 1982-05-17
Granted: 1984-05-22
Abstract: - 10 -             Case 4408 CIRCUIT BOARD MODULE MOUNTING UNIT     ABSTRACT OF THE DISCLOSURE        A module mounting unit formed from a pair of side plates and a series of U-shaped cross-members mounted between the side plates for slidably retaining a series of printed circuit board modules by sliding the modules in guideways provided in the module mounting unit. The modules each have a resilient tab having a prong with a tapered head.  The module mounting unit has a series of from apertures formed to allow the head of each module to engage the aperture at full insertion of the module, thus precluding withdrawal of the module from the rack. The cross-members each have a series of spaced apertures along one leg of the U for engaging the tabs of the modules and a series of alternately-spaced circular and oval apertures to facilitate the mounting of the module guideways to the module mounting unit.
Patent CA-1187168-A (CA)
Inventor: NAGUMO FUMIO
IPC: H04N5/378
Filed: 1982-07-14
Granted: 1985-05-14
Abstract: ABSTRACT OF THE DISCLOSURE              A solid state television camera having a solid state image sensing device including a plurality of individual light sensing units arranged in both horizontal and vertical rows and for sequentially generating a signal corresponding to an image by transferring a charge generated by the light sensing units is disclosed, which includes a synchronizing signal generator for generating horizontal and vertical synchronizing signals, a clock pulse generator for generating a clock pulse corresponding to the horizontal synchronizing signal and controlling the sequential transfer of the number of the clock pulse being equal to the sum of the number of the horizontal rows and a predetermined number, a detecting circuit for detecting the signal during the period of the predetermined number of the clock pulse, the period being after the signal corresponding to the image is obtained and a part of a vertical blanking period, a com-pensating signal generator supplied with the output of the detecting circuit and for generating a compensating signal, and a compensating circuit for removing the undesirable signal based on the charge mixed to the charge representing the image during the transfer of the latter charge by using the compensating signal.
Patent CA-1195898-A (CA)
Inventor: MACLEAN KENNETH J H
IPC: A24D3/02
Filed: 1982-07-28
Granted: 1985-10-29
Abstract: ABSTRACT      A cigarette having a cigarette rod enwrapped in a cigarette wrapper and a filter tip attached at one end of the rod by a tipping wrapper.  The filter tip has at its periphery one or more grooves extending to the mouth end of the tip.  The cigarette wrapper at the region of the rod adjacent the tip is depressed inwardly to form a cavity communicating with the groove or grooves, and the portion of the tipping wrapper over-lying the cavity permits ingress of air into the cavity.  This permits air to enter the smoker's mouth through the groove or grooves and reduces or avoids problems of the smoker obturating the air inlet when holding the cigarette at the tip end.
Patent CA-1196489-A (CA)
Inventor: LUNDBERG ROBERT D
IPC: C09K8/36
Filed: 1982-08-11
Granted: 1985-11-12
Abstract: ABSTRACT OF THE DISCLOSURE           A new family of viscosification agents based on sulfonated  ionomers is described  for oil-based drilling muds.   The resultant muds display good viscosity charac-teristics and good stability when formulated from ionomers having an appropriate sulfonate level, cation type, and cosolvent content.
Patent CA-1190295-A (CA)
Inventor: CANHAM KEVIN
IPC: H01R4/24
Filed: 1982-11-26
Granted: 1985-07-09
Abstract: ABSTRACT     ELECTRICAL TERMINATION SYSTEM AND   CONNECTOR MEMBER      An electrical connector socket, e.g. for a tele-phone line jack, has an insulative body, a cover plate, and contact members.  Each contact member has an insu-lation displacement (ID) contact at one end and a flex-ible contact for contacting the plug at the other.  The contact member is of strip form, and is bent near the ID contact to be accommodated in a recess in a wall section of the body.  The contact member is also bent around the front edge of the wall section and is thus secured on the wall section by its own resilience.  The cover plate is used to push the conductors onto the ID contacts. A ribbon cable can be placed onto the slightly grooved but essentially flat upper effective surface of the plate and pushed straight onto the ID contacts.  If individual wires are to be terminated, however, the in-dividual wires are pulled down into slanting retaining slots formed at the front and rear edges of a planar surface.  Each wire is thus held fixed in position across the plate while the subsequent wires are positioned.  The sockets can be connected in parallel on a ribbon connec-tor (Figure 7) with the cable following a serpentine path through the sockets so as to connect the sockets in a "daisy chain" configuration, with the front ends of the sockets side by side in a common plane.
Patent CA-1231452-A (CA)
Inventor: GIANCARLO CHARLES H
IPC: H04B14/06
Filed: 1982-11-29
Granted: 1988-01-12
Abstract: ABSTRACT OF THE DISCLOSURE         Disclosed is a method and apparatus for A/D conversion, which includes integrating and amplifying by an analog device and subsequently quantizing an analog input signal for  producing a quantized signal having n bits, wherein n > 1.  The quantized signal is integrated digitally by means of a periodic digital summation into a digital signal having N bits wherein N > n and then converted into an analog signal which is fed back to the input signal.
Patent CA-1204226-A (CA)
Inventor: NOMURA SETSUO
IPC: G03H5/00
Filed: 1983-02-02
Granted: 1986-05-06
Abstract: Abstract:     An electron holography microscope obtains an inter ference pattern with contour moire lines depicted thereon which is displayed on a cathode-ray tube, whereby the three-dimensional structure of a specimen can be readily observed on such tube.  To this end, the microscope has a television camera that picks up the interference pattern and a straight line fringe image generator for producing a straight line fringe pattern the direction and interval of which can be selected at will.  Outputs of the camera and the generator are processed and the result displayed on a cathode-ray tube.  The invention has the advantage of avoiding the delays involved in the prior art method which involved photographic steps.
Patent CA-1203439-A (CA)
Inventor: SAEKI YUKIO
IPC: B22C1/22
Filed: 1983-03-31
Granted: 1986-04-22
Abstract: ABSTRACT          An improved resin coated sand for use in foundry shell-molding applications is disclosed which has increased resistance to thermal shock at the time of pouring.  The improved product uses a phenolic resin as binder with aromatic compounds selected from the following generic formulae:     and/or,                     wherein m, n, x and y are integers.  The foundry aggregates are mixed with the phenolic resin and organic compounds under conven-tional mixing conditions to form a sand-resin mixture that can be formed into shell-molds.  Upon casting the molten metal into these molds, the abrupt thermal expansion of the coated sand is controlled to eliminate the cracking that occurs when conventional phenolic-sand mixtures are employed.
Patent CA-1217038-A (CA)
Inventor: PARCEVAUX PHILIPPE A
IPC: C09K8/46
Filed: 1983-04-05
Granted: 1987-01-27
Abstract: ABSTRACT OF THE DISCLOSURE          The invention relates to cement compositions for cementing wells, which allow pressure gas-channeling to he effectively controlled up to more than about 485°F. The cement composition contains a styrene-butadiene latex and a stabilizer. The film of latex interrupts gas-channeling after an extremely brief path.
Patent CA-1234020-A (CA)
Inventor: SCHILD FRANZ
IPC: D07B1/06
Filed: 1983-04-25
Granted: 1988-03-15
Abstract: ABSTRACT A reinforcing cable made of metal wires for elastomeric products, has at least two litzes, each consisting of one or more wires, stranded together, in which at least one outer litz consists of two or more core wires wrapped spirally with at least one litz wrap-around wire.
Patent CA-1195138-A (CA)
Inventor: VELLA PAUL J
IPC: G01M11/00
Filed: 1983-06-06
Granted: 1985-10-15
Abstract: MEASURING CHROMATIC DISPERSION OF FIBERS          Abstract of the Disclosure The chromatic dispersion of an optical fiber such as a 10 to 50 km length of single mode fiber is measured by launching into the fiber the outputs of at least three commonly modulated semiconductor lasers having output wavelengths close to a region of minimum chromatic dispersion of the fiber.  At a remote end of the fiber the relative phases of the signals from the three lasers are determined and a chromatic dispersion profile of the fiber is derived from the measured relative phases and the output wavelengths of the lasers by assuming a parabolic relationship between signal propagation times and wavelength.  The profile can be determined by differentiating a parabolic function fitted to the three data points derived using said three lasers or by directly generating a linear relationship between chromatic dispersion and wavelength on the basis of two values of chromatic dispersion derived from these three data points.                               - i -