baber/WOPTO huggingface dataset:
Patent CA-1160213-A (CA)
Inventor: RADTKE ROBERT P
IPC: E21B10/60
Filed: 1983-03-18
Granted: 1984-01-10
Abstract: DRILL BIT NOZZLE                ABSTRACT OF THE DISCLOSURE         A drill bit for connection on a drill string has a hollow tubular body with an end cutting face and an exterior peripheral stabilizer surface with cylindrical sintered carbide inserts positioned therein and a novel arrangement for securing replaceable nozzles. Nozzle passages extend from the interior of the bit body through the cutting face for receiving a removable and interchangeable nozzle member therein.  A portion of the length of each passage is threaded and the remainder of the passage is enlarged and of a smooth bore.   The nozzle member  is  formed of wear-resistant hard metal, e.g. carbide, and has a metal sleeve brazed thereon with male threads operable to be fitted in the threads in said nozzle passage.  The nozzle member is threadedly  secured in place during installation and optionally further secured against unscrewing and additionally protected against wear or erosion by a metal or hard metal, e.g. carbide, retaining ring having an interfer-ence fit in the smoothe portion of the nozzle passage. The shape of the hard metal nozzle member protects the entire nozzle assembly, and particularly the threaded metal sleeve, from erosion produced by abrasive drilling fluids.  The cutting face supports suitable cutting means, preferably diamond cutting elements.  The replaceable nozzles with threaded exteriors and protecting retaining rings may be used with other types of drill bits, e.g. roller cone bits, but are particularly useful with diamond bits because of the close proximity of the nozzles to the cutting surface in diamond bits which results in a very high wear rate.
Patent CA-1197922-A (CA)
Inventor: GERFAST STEN R
IPC: G11B23/00
Filed: 1983-03-21
Granted: 1985-12-10
Abstract: Recording Disc Abstract A recording disc (10,18) is provided by a disc-shaped, formed-sheet-metal support (18) across which a flexible recording sheet (10) is stretched.  The formed-sheet-metal support (18) has a central spindle opening (30) which can be precisely centered by simultaneously punching the spindle opening (30) and the circular periphery, thus permitting high-speed rotation of the recording disc (10,18) in use.
Patent CA-1212046-A (CA)
Inventor: WATSON THOMAS A W K BOX L STNA
IPC: F03D3/04
Filed: 1983-05-11
Granted: 1986-09-30
Abstract: Balanced Stress Vertical Axis  Wind Turbine Abstract of  the Disclosure Curved airfoils are mounted on members attached to a vertical shaft. The ends of the airfoils point outward from the shaft, The members are attached to the upper and lower sections of the airfoils and converge as they approach the shaft. This minimizes the  shaft length above the turbines upper most bearing and provides a balanced condition that distributes forces in such a manner which reduces airfoil stress.            The invention relates to vertical axis wind turbines having airfoils radially disposed about their axis of rotation, wherein airfoil stress is balanced against reaction forces. The length of the shaft above the upper most bearing of a vertical axis wind turbine having no support structure above its airfoils, is usually one half the length of its airfoils. This results in a large bending moment on the shaft, hence its diameter must be made large for the power it handles. In this type of turbine members are used to connect the airfoils to the vertical shaft. In the vertical axis wind turbine using a troposkein shape, a supporting structure such as guy wires must be employed or a very thick shaft used. In the present invention airfoil stress due to centrifugal forces is balanced against reaction forces set up in the members used to connect them to the shaft.To provide this condition these members must converge as they approach the shaft.This will permit the use of a relatively short shaft above its upper most bearing, thus reducing shaft diameter and bearing size.     An objective of the invention is to reduce airfoil stress as compared to what it would be in a vertical axis wind turbine using straight airfoils.          Another objective is to reduce shaft diameter and bearing size.
Patent CA-1200727-A (CA)
Title: Portable cervical collar
Inventor: GARTH GEOFFREY C
IPC: A61F5/00
Filed: 1983-06-20
Granted: 1986-02-18
Abstract: ABSTRACT     There is disclosed a portable cervical collar formed of an elongated band of stiff, flexible sheet material which can be formed into a cylindrical collar.          The collar includes a chin support brace which is a generally C-shaped flat sheet that can be attached with its opposite ends secured to opposite sides of the formed collar thereby forming a concave,  forwardly projecting support shelf to immobilize the wearer's chin.  The collar is intended as a portable, compact collar for field use by paramedics and the like during transportation and initial examination of a patient.
Patent CA-1203339-A (CA)
Inventor: DAVIES STEPHEN P
IPC: C08F4/04
Filed: 1983-07-29
Granted: 1986-04-15
Abstract: ABSTRACT                   POLYMERISATION PROCESS     A monomer charge having a defined slight solubility in water, but giving rise to a polymer which is water-insoluble, is emulsified in water in the presence of a non-ionic surface-active compound which comprises in the molecule (a) a component of molecular weight at least 400 which is per se soluble in the aqueous phase, (b) another component of molecular weight 150-1000 which is per se soluble in the monomer phase and (c) an unsaturated grouping capable of copolymerising with the monomer(s) and being attached to or integral with the monomer-soluble component, and the emulsified monomer is then polymerised in the presence of a non-ionisable free radical azo initiator which is soluble in water and sub-stantially insoluble in the monomer(s). The product is a wholly sterically stabilised aqueous polymer dispersion useful for the formulation of water-borne coating compositions.
Patent CA-1196626-A (CA)
Inventor: MAKOHL FRIEDHELM
IPC: E21B4/00
Filed: 1983-08-08
Granted: 1985-11-12
Abstract: ABSTRACT             A direct drive for deep-well drill bits on the Moineau displacement principle is provided with locking means detents (10, 11) which are disposed downstream of the working chambers (4) of rotor (3) and stator (2). Actuation of the locking means is effected by coupling throw-in members (13) introduced through the flushing passage from above.  Passage through the working chambers and into the locking means detents groove (16, 20, 21) is rendered possible for the throw-in members on relative rotation of rotor and stator.
Patent CA-1194189-A (CA)
Inventor: KRIKOR KRIKOR A
IPC: H04Q3/00
Filed: 1983-08-25
Granted: 1985-09-24
Abstract: REMOTE DATA LINK SWITCHING ARRANGEMENT              ABSTRACT OF THE DISCLOSURE         An automated switching office arrangement for switching data link transmission from analog to digital data or vice versa is disclosed.  Any or all of a number of data links may be automatically switched between the digital and the analog transmission modes.          This automated switching may be accomplished locally within the switching office or from a remote location.
Patent CA-1217324-A (CA)
Inventor: NEHMER WARREN L
IPC: E21B33/138
Filed: 1983-09-19
Granted: 1987-02-03
Abstract: Abstract of the Disclosure Gellable (and gelled) acid compositions are disclosed which comprise:  an aqueous acid, aldehyde-crosslinkable polymeric viscosifiers, an aldehyde-releasing compound, and a reducing agent or chelating agent.  The gelled acids are useful in acidizing subter-ranean formations.  As an example, 28 percent hydro-chloric acid was gelled with a 70:30 AMPS/acrylamide copolymer crosslinked with hexamethylenetetraamine in the presence of erythorbic acid.
Patent CA-1198783-A (CA)
Inventor: AJIOKA JAMES S
IPC: H01P1/19
Filed: 1983-09-29
Granted: 1985-12-31
Abstract: ABSTRACT     A millimeter-wave phase shifter for use at high millimeter-wave frequencies is disclosed.  The phase shifter employs continuous aperture ferrite and corru-gated horns to make a reciprocal phase shifter in the frequency range of interest.  Applied linearly polarized energy is expanded in cross-section by means of a first corrugated horn (23).  The expanded energy is focused by a first lens (27), circularly polarized (24) and applied to a ferrite phase shifting section (22). The phase shift applied to the energy is controlled by means of phase control circuitry (28) and a yoke (31) and coil (32) arrangement.  The phase-shifted energy is then converted to linearly polarized energy by a second circular polarizer (34) focused by a second lens (37) and contracted in cross-section by a corrugated horn (38).  The use of the corrugated horns, polarizers, lenses and ferrite phase shifting components allows a much larger device to be fabricated and hence physical tolerances are reduced by an order of magnitude for the frequency range of interest.  In addition, both the efficiency and power handling capability are greatly improved.  Both reciprocal and nonreciprocal phase shifters are disclosed.
Patent CA-1214870-A (CA)
Title: Write data compensating circuit in magnetic recorder
Inventor: UNO HIROSHI
IPC: G11B5/09
Filed: 1983-11-04
Granted: 1986-12-02
Abstract: WRITE DATA COMPENSATING CIRCUIT IN MAGNETIC RECORDER     ABSTRACT OF THE DISCLOSURE     A write data compensating circuit in a magnetic recorder comprising a shifting circuit for shifting binary data in time series and producing front, present, and rear signals regarding the binary data, and a combination logic circuit for effecting a preshift to the present signal provided as write data in accordance with a pattern of the front, present, and rear signals. The combination logic circuit is comprised of a first circuit operative to discriminate a pitch of each two adjacent inversions of magnetization to be created by the write data and a second circuit operative to adjust each pulse width of the write data based on an analysis by the first circuit.
Patent CA-1209463-A (CA)
Inventor: PATER LARRY L
IPC: B26F3/00
Filed: 1983-11-08
Granted: 1986-08-12
Abstract: Abstract of the Disclosure Discrete volumes, or slugs, of liquid are accelerated to high velocities utilizing energy stored by compressing the liquid.  Liquid is forced into a pressure vessel already filled with  liquid  to  effect  the  compression.  A  slug  of  liquid is ejected from the pressure vessel into a cumulation nozzle by the energy stored in the compressed liquid when a valve is rapidly opened. The valve is opened when an opening force, generated by the compressed liquid, exceeds a closing bias. By repetitively introducing highly pressurized liquid into the pressure vessel, the valve automatically cycles to generate a series of pulsed liquid jets. Rapid opening of the valve is aided by an extension on the valve member which sealingly slides inside the passage of the cumulation nozzle to block release of liquid until the valve member accelerates sufficiently that the required opening rate is achieved as the extension clears the nozzle passage.
Patent CA-1211232-A (CA)
Inventor: YIN LO I
IPC: H05G1/60
Filed: 1984-01-19
Granted: 1986-09-09
Abstract: Abstract An instrument for obtaining quantitative, three-dimensional and tomographic information relating to x-ray and gamma-ray emitting objects and for the orthoscopic viewing of such objects includes a multiple-pinhole aperture plate (22) held spaced from an x-ray or gamma-ray to visible-light converter (24) which is coupled to a visible-light image intensifier (26).  The spacing between the aperture plate and the converter is chosen such that the mini-images of an emitting object formed by the pinholes do not substantially overlap as they impinge on the converter.  The output of the image intensifier is digitized by a digitizing camera (36) in terms of position and intensity and fed into a digital computer (40,42).  The computer may output quantitative information relating to the emitting object directly, such as that relating to tomograms, or provide information in analogue form when coupled with a suitable viewing device (52,54), to give an orthoscopic, three-dimensional image of the object.
Patent CA-1214910-A (CA)
Inventor: HAYASHI MOTOSHIGE
IPC: B29C48/305
Filed: 1984-01-27
Granted: 1986-12-09
Abstract: ABSTRACT OF THE DISCLOSURE           A method for preparing a multi-cellular foamed board of thermoplastic resin which comprises forming under pressure in a die a thermoplastic resin melt containing a foaming agent to give the resin melt a shape of a flat board having a broad width compared with a thickness thereof, extruding the resin melt from the die having the convex forward end with a middle portion in the width direction thereof protruding the greatest toward the extruding direction, introducing thus extruded resin melt immediately into a moulding passage having a concave end engaging with the said convex forward end of the die, allowing the resin melt to expand in the thickness direction at the portion adjacent to and extending along the concave end of the passage, and thereafter allowing the resin melt to expand in both the thickness and width directions of the board in the passage.
Patent CA-1221670-A (CA)
Inventor: CALDWELL JOHN W
IPC: B04B1/20
Filed: 1984-03-05
Granted: 1987-05-12
Abstract: -i-Abstract of the Disclosure The blade of a helical screw conveyor of centrifuge apparatus is improved to reduce the amount of torque required in operating the apparatus as well as to produce discharged solids drier than the solids discharged using a conventional blade; the improvement provides that the distal end of the leading surface of the blade at or adjacent at least the trunco-conical end of the centrifuge bowl have a generally arcuate configuration concave in the direction of the solids discharge port such that the more distal blade portions peel the separated solids material from the bowl wall with minimum torque requirements, while the less distal arcuate portions tumble the solids to reduce the moisture content.  Typically, the blade's arcuate leading surface is formed by add-on, wear-resistant members attached to a backing plate which in turn is mounted on the leading surface of the blade.
Patent CA-1256769-A (CA)
Title: Solar ray collecting device
Inventor: MORI KEI
IPC: F24S23/00
Filed: 1984-03-28
Granted: 1989-07-04
Abstract: ABSTRACT OF THE DISCLOSURE:          A solar ray collecting device is comprised of a supporting base plate on which a large number of hexagonal recesses are provided and a large number of optical systems are arranged on each of the recesses.  Each of the optical systems is made up of a hexagonal focusing lens of a dimension that is approximately the same as the hexagonal recesses and of a heat-cut hexagonal pyramid which extends downward from the light collecting lens as an upper surface of the recess.  An optical conductor which is a light-receiving surface is provided on the focus of the light collecting  lens.   Furthermore,  the  upper  internal circumferential surface of the side wall forming the recess is so formed that it may be able to move freely on the surface of the hexagonal pyramid.
Patent CA-1220511-A (CA)
Inventor: PETERSEN TOM K
IPC: H02P23/10
Filed: 1984-04-11
Granted: 1987-04-14
Abstract: Abstract In an arrangement for controllably driving an A.C. motor (M) with regulatable D.C. voltage (Ui) and the frequency of an inverse rectifier (7) that follows the existing value of said D.C. voltage, a braking circuit is associated with at least one phase.  The braking circuit comprises a brake resistor (R) between a phase connection (13) and a brake connection (14) which is arranged between two brake switching elements (Es7, Es8) disposed in series between the supply lines (5, 6). In this way, one can reduce the transition period when a smaller  desired value is set for the regulatable D.C. voltage.     Fig. 1.
Patent CA-1222050-A (CA)
Inventor: SHIMOHIGASHI KATSUHIRO
IPC: H01L29/792
Filed: 1984-06-06
Granted: 1987-05-19
Abstract: Abstract:         A semiconductor memory including a dynamic memory device has a battery for supplying a voltage source for power and a substrate bias voltage when the memory is cut off from an external supply.  A refresh control circuit changes the refresh timing of the memory device in accordance with the leakage current of the memory device.  The power consumption of the memory can thus be reduced and the data kept for an extended period without an external source of power.
Patent CA-1218150-A (CA)
Inventor: PETERSON LUVERNE R
IPC: G11C19/08
Filed: 1984-06-28
Granted: 1987-02-17
Abstract: ABSTRACT OF THE DISCLOSURE  DETECTOR-DUMMY DETECTOR COMBINATION WHICH IS         INTEGRATED AS A SINGLE ELEMENT OF REDUCED SIZE         A magnetic bubble memory includes a planar magnetic film containing a plurality of magnetic bubbles which move in response to a magnetic field that rotates the film's plane; and further includes an improved mechanism for detecting the bubbles comprised of:  a pair of elongated magnetoresistive members that lie over the film alongside of one another; the members having fingers that extend towards each other along the direction of elongation; the fingers of one member being interdigitated with the fingers of the other member such that they mesh together but do not touch; the fingers being interdigitated at angles of less than 180° so that magnetic poles which attract the bubbles are sequentially induced in the fingers of only one member, in the fingers of both members, and in the fingers of only the other member by each rotation of the field.
Patent CA-1265018-A (CA)
Inventor: HALWANI MOHAMMED
IPC: B02B3/00
Filed: 1984-08-07
Granted: 1990-01-30
Abstract: ABSTRACT OF THE DISCLOSURE     A method for husking sesame seeds, characterized by the fact that the sesame seeds,  previously freed from their  impurities,  are  introduced  into  an  attrition apparatus by carrying out a simultaneous water and water steam injection in a proportion such that the seed water content is of about 15%, thereby causing a swelling of the seeds and a first separation of the husk such that the husking be carried out to at least 95%, then after sieving,  introducing the seeds thus almost husked in a drying assembly at the inlet of which they receive a complementary  injection of water steam so that their water content be of the order of 14% to 18%, the drying operation being carried out for 1> hour to 2 hours at a temperature of 120° to 130° C; so that at the outlet of the drying apparatus the remaining husk be separated from the almonds and dessicated, thereby allowing eliminating them  by  ventilation,  the  almonds  being  ready  for consumption and/or oil production.
Patent CA-1230178-A (CA)
Inventor: FURUKAWA SHUNSUKE
IPC: G11B7/013
Filed: 1984-08-30
Granted: 1987-12-08
Abstract: ABSTRACT:         A disc playback apparatus which is capable of reproducing digital data in contrast to for example audio information such as music.  In order to access the disc on a shorter unit basis than for say audio information a time indication code, termed sub-coding is used.  The disc is recorded with main digital data and subdigital data (which corresponds to the sub-coding) which is used to reproduce selectively the main digital data.  In the playback appar-atus the subcoding is separated from the main digital data and is supplied to a system controller which controls the reading operation of a desired digital signal from the disc.
Patent CA-1201944-A (CA)
Title: Hard shell soft core latex
Inventor: SINCLAIR ALVIN R
IPC: B32B27/10
Filed: 1984-09-26
Granted: 1986-03-18
Abstract: "HARD SHELL SOFT CORE LATEX" Paper coating compositions providing enhanced gloss and pick characteristics are manufactured from latices comprising heterogeneous polymer particles formed from a monomer composition comprising a monovinylidene aromatic monomer, an aliphatic C4-6 conjugated diene monomer, a C3-6 ethylenically unsaturated carboxylic acid and a C3-6 ethylenically unsaturated primary amide. The polymer particles have an initial domain and a subsequent domain wherein the initial domain has a higher content of the monovinylidene aromatic monomer than the subsequent domain.
Patent CA-1220056-A (CA)
Inventor: CATALDO ROY S
IPC: F16G5/16
Filed: 1984-11-14
Granted: 1987-04-07
Abstract: V-BELT STRUCTURE   Abstract of the Disclosure A push-type metal V-belt for use with V-grooved pulleys is produced with a single formed and fan-folded strip of sheet metal.  The folded strip has alternately tight-folded and open-folded portions having less height when viewed edgewise of the open-folded portions.  During the forming of the strip, adjacent drive edges are formed so that when folded, these edges are aligned so as to become drive surfaces of the belt.  When viewed in a lateral section, the drive surfaces are the outer edges of a substantially trapezoidal surface.  Also, during the forming of the strip, a plurality of lateral slots are formed to provide an area or space for housing a plurality of metal bands which maintain the fan-folded strip in a continuous belt or loop configuration.
Patent CA-1227390-A (CA)
Inventor: TIMMONS JOHN W
IPC: A61M16/06
Filed: 1984-12-11
Granted: 1987-09-29
Abstract: ABSTRACT    An eyeglass frame and nasal cannula assembly  for inconspicuously administering oxygen or other gases into the nostrils of a patient having respiratory ailments.   An eyeglass frame has a pair of grooves in the rear surface of its front piece and a groove in the interior surface of each of its hinged temples.  A nasal cannula assembly comprising a pair of cannula tubes is fitted in the grooves.  One end of each of the cannula tubes is adapted for insertion in one nostril of the patient's nose and the opposite end of each of the cannula tubes is connected to a portable source of supply of oxygen or another gas to be administered to the patient.  The overall appearance of the eyeglass frame is substantially identical to that of a conventional eyeglass frame and all but a small portion of the cannula tubes are hidden from view.
Patent CA-1243207-A (CA)
Inventor: GURTNER MICHAEL V
IPC: A63H18/02
Filed: 1985-01-07
Granted: 1988-10-18
Abstract: ABSTRACT     A moveable toy consisting of a base and a motorized vehicle.  The base includes a track having a central groove ending in openings at either end.  The track includes verticle teeth on the exterior thereof which cooperate with a drive gear held in the vehicle to drive the vehicle along the track.  Rotors having notches on the top surface are rotatably held for movement in one direction in the openings at each end of the central groove in the track.          Once the motor of the vehicle is actuated, the vehicle travels along the track.  The travel of the vehicle is guided by a blade cooperating with the groove, and a guide held in a slot.  When the vehicle arrives at either end of the track, the blade leaves the groove and is captured between the notches on the rotor.  The drive gear continues to operate, and since the rotor cannot rotate in the direction of movement of the drive gear because of cooperating stop means in the base and a supporting foot, the vehicle rotates the base by the teeth formed around the end of the track.  The base rests on a surface, and the weight of the vehicle at the end of the track presses the end down, and cams or lifts up the oppo-site end of the base.  The base may then more easily rotate around the stationary foot, approximately 180° to allow the vehicle to continue back into the groove toward the other end of the track and for further movement of the toy in the same direction.