baber/WOPTO huggingface dataset:
Patent CA-1156399-A (CA)
Inventor: KELLEY DONALD J
IPC: C08J3/12
Filed: 1981-04-22
Granted: 1983-11-01
Abstract: Abstract of the Disclosure Styrenic polymer particles having a uniform particle size distribution are prepared without the formation of fine polymer powders.  The suspension polymerization process which comprises providing a stirred, aqueous suspension of polymeric seed particles, adding gradually to the suspension styrenic monomer and poly-merizing it therein, and continuing the addition of monomer as the polymerization proceeds, may be improved by introducing the styrenic monomer below the surface of the suspension.
Patent CA-1183707-A (CA)
Inventor: CHISHOLM LISA E
IPC: F16B19/00
Filed: 1981-05-14
Granted: 1985-03-12
Abstract: IMPROVED PLASTIC DRIVE FASTENER            Abstract of the Disclosure Disclosed is a one piece plastic drive fastener including a head and a shank with the shank having an axis and comprising an elongate body portion having a generally polygonal cross-section and providing a plurality of radially outwardly facing substantially flat surfaces.  A first plurality of integral resilient independent wings extend radially outwardly from at least one of the flat surfaces at axially spaced intervals.  The junctures of the first plurality of wings along the at least one of the surfaces is each along a respective straight line forming a bend line for flexure of the first wings during introduction of the fastener into a complementarily apertured workpiece.  A second plurality of integral resilient independent wings extend from and are positioned in axially spaced relation along at least one of the other of the surfaces and are angularly disposed so as to incline in the direction of the head.  Each of the second wings has a thickened section formed at its juncture, whereby each thickened section coacts with its respective second wing to define a bend line along which each second wing flexes which bend line is spaced radially from the respective surface to which each of the second wings is attached.
Patent CA-1159498-A (CA)
Title: Subassembly for a fuse and method of making same
Inventor: JAROSZ JOHN M
IPC: H01H85/48
Filed: 1981-08-26
Granted: 1983-12-27
Abstract: ABSTRACT OF THE DISCLOSURE A current-limiting fuse subassembly includes a copper fusible element maintained in a circular helix by a support. The support is a hollow insulative cylinder to which are mounted two diametrically opposed fins. The fins have pro-jections with trapezoidal notches therein, and the notches are offset to define a helix. The element is wound about the support and snapped into the notches which are as wide as the ribbon only at their bottoms. During the winding, the element is supported at six points by four rods and the two fins; sufficient tension is applied to snap the element into the notches, to cause the element to bite into the notches at their bottoms, and, in cooperation with the six support points, to permanently deform or set the element in a circular helix. After the rods are removed, the subassembly is inserted in a fuse housing which is filled with sand. The fins are similar asymmetric members mounted in mirror-image fashion to the cylinder which houses a normally-closed switch in electrical shunt with the element.
Patent CA-1171029-A (CA)
Inventor: BAILEY MARSHALL G
IPC: B07B1/46
Filed: 1981-09-23
Granted: 1984-07-17
Abstract: Title:  Improvements in vibratory screening apparatus ABSTRACT Vibratory screening apparatus wherein a filtrating cradle incorporating screens is vibrated on a machine base, and where-in a bottom screen (56) in said cradle (12) can be withdrawn between an upper support (64) on said cradle and an intermedi-ate support (54) on a bottom screen frame (52), which frame is also withdrawable from the machine on a lower support (62) on the cradle, expander means (60) being provided to act on the lower support so that, in the serted position of the bottom screen frame, the opposed sides of the bottom screen can be clamped between the upper and intermediate supports, locking the bottom screen and its support in position.
Patent CA-1171404-A (CA)
Inventor: NAKAO HIDEO
IPC: C07D501/00
Filed: 1981-09-30
Granted: 1984-07-24
Abstract: ABSTRACT:            "CEPHALOSPORIN DERIVATIVES, THEIR PREPARATION AND COMPOSITIONS-CONTAINING THEM"         Compounds of formula (I):                     ( I ) wherein:        R1 represents a lower alkyl group selected from methyl groups and ethyl groups;          R2 represents a hydrogen atom or a methyl group;  and R3 represents a group selected from C1-C5 alkyl and C1-C5 alkoxy groups, and pharmaceutically acceptable acid addition salts thereof hava valuable antibiotic activity and are suitable for oral administration.   They may be prepared by a variety of synthetic routes.
Patent CA-1152413-A (CA)
Title: Method and device for compressing wooden elements
Inventor: STRANDBERG ANDERS
IPC: B30B15/06
Filed: 1981-10-19
Granted: 1983-08-23
Abstract: A METHOD AND A DEVICE FOR COMPRESSING WOODEN ELEMENTS            Abstract When compressing a wooden element (8) between two moveable press plates (2,3) of a hard material, such as steel, the wooden element is kept therebetween together with a pad (7) which consists of a material being posi-tively softer than the knots (9) included in the wood and which has a thickness being sufficient for allowing portions of said knots to be forced out of said element and into said pad without breaking to shivers by the pressure exerted. Wooden elements or boards treated in this way attain improved impact and scratch resistance while maintaing the knots intact, making the elements suited to be used as floor or furniture components. Figure 3.
Patent CA-1175811-A (CA)
Inventor: DIPIPPO CARMINE A
IPC: C07C67/00
Filed: 1981-11-17
Granted: 1984-10-09
Abstract: ABSTRACT OF THE DISCLOSURE             Provided are novel light-sensitive diazonium compounds known as diazonium trifluoromethane sulfo-nates, which have the structural formula:       wherein   is the cation of an organic diazonium compound.  The diazonium trifluoromethane sulfonates are prepared as the reaction product of trifluoromethyl sulfonic acid, or a salt thereof, and a diazonium compound.  Said diazonium trifluoromethane sulfonates find utility in diazography formulation for both positive- and negative-working diazotype photoreproduc-tion systems, and as latent polymerization initiators activatable  by irradiation.
Patent CA-1174294-A (CA)
Inventor: TAKECHI HIROSHI
IPC: B23K13/02
Filed: 1981-11-27
Granted: 1984-09-11
Abstract: ABSTRACT OF THE DISCLOSURE:           An impeder for use in an apparatus for resistance tube welding by which a strip-shaped skelp continuously formed into a tubular or spirally tubular shape having spaced opposed edge portions defining a gap therebetween has the edge portions heated and pressed together for being welded.  The impeder has a generally tubular casing and a core within the casing consisting of a plurality of laminated metals each consisting of a plurality of substantially flat planar foils of metallic magnetic material, the core, when viewed in cross-section traverse to the central longitudinal axis of the casing, having the transverse cross-sections of the laminated metals on parts of at least one circle concentric with the longitudinal axis of the casing and having the planes of the foils extending substantially radially outwardly from the longitudinal axis.
Patent CA-1162964-A (CA)
Inventor: THRASHER HOWARD
IPC: F16C19/10
Filed: 1981-12-16
Granted: 1984-02-28
Abstract: ABSTRACT     Disclosed herein is an antifriction bearing comprising rolling elements between an inner race and an outer race, each of the two races having a gap between two oppositely oriented end portions.  In accordance with the invention, at least one of the end portions of at least one of the races is a spring whose resiliency, during operation, substantially alleviates torque pulses otherwise caused by the rolling elements when passing over the gaps.  Ball bearings constructed based upon the invention were found particularly useful in gimbal assemblies of inertial platforms used for flight control systems.
Patent CA-1204893-A (CA)
Title: Graphite filled polyester-carbonate compositions
Inventor: MILLER KENNETH F
IPC: C08L67/00
Filed: 1981-12-23
Granted: 1986-05-20
Abstract: GRAPHITE FILLED POLYESTER-CARBONATE COMPOSITIONS         ABSTRACT OF THE DISCLOSURE       Novel thermoplastic molding compositions possessing improved physical properties are disclosed which comprise (a) a polyester-carbonate polymer, and (b) graphite fibers.
Patent CA-1189038-A (CA)
Inventor: KANKKUNEN MATTI K
IPC: A62B1/12
Filed: 1982-03-02
Granted: 1985-06-18
Abstract: ABSTRACT OF THE DISCLOSURE            A safety device for lowering persons and  loads comprises a two-piece casing, the two halves of which are symmetrical forming a cylinder therebetween,in which a piston provided with flow channels for a medium is fitted to move axially, the circumference of the piston having a sinusoidal groove in which are engaged one or several pins which are moved by a cable drum which is rotated by the cable around the outer circumference of the cylinder and in which there is a guide roll arrangement for the cable or rope, both ends of the cable hanging freely and one of them being loaded.  The arrangement may further comprise three guide rolls with both ends of the cable passing over the central roll on opposite sides of it and thence between it and one of the other guide rolls on either side of it, so arranged that the loaded cable presses the central guide roll against the unloaded part of the cable which is thereby pressed against one of the guide rolls producing an additional braking effect by friction, and, furthermore, outside the casing an adjustable regulator for throttling the flow of the medium in order to adjust the rate of descent to that desired.
Patent CA-1193999-A (CA)
Inventor: ODA YOSHIO
IPC: C25B1/18
Filed: 1982-03-19
Granted: 1985-09-24
Abstract: ABSTRACT OF THE DISCLOSURE:     An ion exchange membrane electrolytic cell comprises an anode, a cathode, an anode compartment and a cathode compartment partitioned by an ion exchange membrane. A gas and liquid permeable porous non-electrode layer composed of non-oxide ceramics particles is bonded to at least one side of the ion exchange membrane. With use of such a mem-brane, the cell voltage can considerably reduced in the electrolysis of water, an alkali metal halide, an alkali metal carbonate, etc.
Patent CA-1157488-A (CA)
Inventor: TOKAR VALERY
IPC: C04B28/04
Filed: 1982-03-25
Granted: 1983-11-22
Abstract: ADDITIVE COMPOSITION FOR PORTLAND CEMENT MATERIALS              ABSTRACT OF THE DISCLOSURE An additive composition has been formulated which accelerates the setting time, and also improves the compressive strength of Portland type cement, mortars and concretes. The additive composition consists essentially of a concentrated aqueous solution of calcium nitrate and a waste byproduct stream of a mixture of polyethanolamines (referred to as "triethanolamine bottoms") to which solution is added a minor amount of an alkali metal or alkaline earth metal salt of a polyhydroxy aliphatic compound such as gluconic acid, or of lignosulfonic acid.
Patent CA-1174990-A (CA)
Inventor: GROOTHUIZEN ALBERTUS G M
IPC: E02D15/10
Filed: 1982-05-07
Granted: 1984-09-25
Abstract: ABSTRACT       In order to permit material such as stones, for example, to be dumped on subaqueous ground from a vessel, the vessel is provided with a hollow member of flexible, water-pervious material through which the material may be dumped.
Patent CA-1188088-A (CA)
Inventor: MOLT KENNETH R
IPC: C08K5/37
Filed: 1982-06-01
Granted: 1985-06-04
Abstract: ABSTRACT OF THE DISCLOSURE: Compositions are provided which are effective for stabilizing halogen containing polymers against the deteriorative effects of heat.  These stabilizer compositions comprise 1) at least one zinc mercaptoester, 2) at least one basic inorganic alkali or alkaline earth metal compound, and, optionally, 3) at least one substituted dihydropyridine.
Patent CA-1177607-A (CA)
Inventor: MACKIE DAVID M
IPC: D21C3/06
Filed: 1982-06-03
Granted: 1984-11-13
Abstract: ABSTRACT OF THE DISCLOSURE     A method of improving the strength properties of mechanical wood pulp is disclosed.  The method reduces the shive content and makes the shive content in the reject fraction particularly susceptible to being broken up.  In the method, the pulp is separated into a reject fraction and an accept fraction, the reject fraction containing a higher portion of shives and long fiber material, an aqueous solution of sodium sulfite is applied to the reject fraction, the solution having a pH in the range of about 2.5 to 13.  The reject fraction is cooked at a temperature in the range of about 100 to 160°C for a period of time in the range of about 2 to 120 minutes such that after cooking the quantity of sulfonate bound to the reject fraction is in the range of about 0.6 to 1.6% based on the bone dry weight of the reject fraction, and the drainage time of the reject fraction is not reduced.          The reject fraction is then refined and recombined with the accept fraction.
Patent CA-1186151-A (CA)
Inventor: BRANSTON KEITH
IPC: B23F23/12
Filed: 1982-06-14
Granted: 1985-04-30
Abstract: ABSTRACT OF THE DISCLOSURE        A multi-station grinding machine has a worktable mounted on a machine bed to rotate about a principal axis.  The worktable has a plurality of workpiece holding means at equal angular intervals around the axis and uniformly spaced therefrom, each holding means defining parallel to said principal axis a support axis for a workpiece to be held therein.  A loading/ unloading station and three work stations are positioned around the principal axes each work station including a grinding wheel.  Table index means effects angular indexing of the table about said principal axis through a series of registered positions to bring the workpieces into precise register with the work stations in succession. Workpiece index means at each work station is selectively coupled to effect predetermined incremental indexing rotation of a workpiece to present preselected portions of the workpiece for engagement by the associated grinding wheel.
Patent CA-1179129-A (CA)
Inventor: MATSUURA MASATOSHI
IPC: A01M23/08
Filed: 1982-07-19
Granted: 1984-12-11
Abstract: Abstract A trap for small animals, e.g. rats, consists of a cylindrical box having inlets at both ends.  This box is placed so that the animal can be expected to want to pass through it.  A pair of step boards freely pivotable about a pair of bearings are mounted near a bottom plate of the box.     These boards are slightly incline downwardly towards a respective inlet, while adjacent edges of the boards engage each other.  A door is mounted on a pivot pin above each inlet.  Members are mounted on the boards for propping open the doors.  The weight of an animal on the boards between the bearings moves these propping members to cause the doors to close the inlets.  The device has the advantage of avoiding the need for bait.
Patent CA-1150156-A (CA)
Inventor: CARTER J WARNE JR
IPC: F03D7/04
Filed: 1982-09-16
Granted: 1983-07-19
Abstract: Inventor:    J. WARNE CARTER, JR. and J. WARNE CARTER, SR.          Invention:   WIND-DRIVEN GENERATOR APPRATUS AND METHOD              OF MAKING BLADE SUPPORTS THEREFOR                     Abstract of the Disclosure Wind generator apparatus employs an induction generator with a wind-driven rotor.  Connection of the induction generator to AC power lines is controlled by apparatus that compares generator rpm and line frequency. The rotor blades have a pretwisted, varying-chord inboard portion and an untwisted, constant-chord outboard portion. The blades are self starting, operate efficiently over a range of wind speeds with constant pitch maintained by a torsional biasing mechanism, and pitch up automatically when the normal rpm operating range is exceeded.  An im-proved blade-supporting spar of low torsional stiffness has an I-beam configuration with filament-wound flanges. A pitch damper prevents torsional oscillations while permitting the blades to pitch up readily.  The rotor,    I which includes a teetering hub, is free to weather-vane about the axis of a supporting tower, but a yaw damper limits angular velocity.  A guy wire and gin pole arrange-ment stabilizes the tower and permits easy raising and lowering of the tower.
Patent CA-1188175-A (CA)
Inventor: BOOKWALTER JOHN R
IPC: A61B17/02
Filed: 1982-10-07
Granted: 1985-06-04
Abstract: Multi-Position Ratchet Mechanism Abstract A multi-position ratchet mechanism for holding a surgical retractor blade which permits a retractor blade to be rotated into the wound and retracted at the same time to duplicate the natural "toe-in" method of retraction achieved with the hand.  The ratchet mechanism includes a ratchet holder to which is pivotably attached a ratchet pivot housing,  The retractor blade is mounted in an opening projecting through ratchet pivot housing and held in position by a retractor pawl attached to the ratchet pivot housing.  The ratchet pivot housing also has a curved ratchet which depends into a cooperating slot in the ratchet holder and engages a pivot pawl rotatably mounted and spring biased into the ratchet slot.  The holder includes a transverse slot which slides onto an oval ring which is mounted about the incision site.
Patent CA-1194990-A (CA)
Inventor: GRADIN JAMES H
IPC: H01Q3/24
Filed: 1982-11-25
Granted: 1985-10-08
Abstract: AUTOMATIC TELEVISION ANTENNA CONTROL SYSTEM    Abstract Automatic selection of a directional antenna providing the best television reception is provided for in an antenna control circuit that includes a circuit for automatically sampling the video output for each directional antenna and connecting the directional antenna that produces the strongest video signal to the receiver.  The antenna control circuit includes a timer circuit that responds to the horizontal and vertical synchronizing pulses of the receiver to control the duration and timing of the sampling.
Patent CA-1189625-A (CA)
Inventor: CONVERSE VERNON G III
IPC: G01M3/32
Filed: 1982-12-02
Granted: 1985-06-25
Abstract: ABSTRACT     The specification discloses an electronic dynamic balance leak testing system utilizing a "live zero", wherein a source of test medium at a predetermined desired pressure or vacuum is connected to a part to be tested, and after the part is filled with the test medium, and an interval is provided for the system to stabilize the affects due to wave front oscillations, the test part is momentarily isolated from said test media and a microcomputer system is utilized, both to cause said isolation, and to measure the differential pressure existing at two points during the test.  In a modification of our system which can dynamically project leak and accept or reject parts much sooner because of this projection feature, the rate of change of the differential pressure transducer is examined and is compared to a curve which is characteristic of the rate of change of a volume which is experiencing a predominately leak based change of pressure.  When the rate of change is determined to be predominately a leak based change, the rate of change is determined to be a "Qualified Leak" or a qualified curve.          In this case, after a predetermined sample time elapses from the point at which the curve was qualified, a reading of leakage is taken, such reading is then extrapolated to a full test term reading and compared to limits to see if a part is to be accepted or rejected.
Patent CA-1200063-A (CA)
Inventor: BREHER RUDOLF
IPC: F16G1/28
Filed: 1983-01-04
Granted: 1986-02-04
Abstract: ABSTRACT OF THE DISCLOSURE         A method for the production of a reinforced plastics toothed belt with a fabric cover on the toothed side of the belt.  Formed between a moulding wheel and a moulding wheel cover is a mould cavity into which the liquid plastics material, the reinforcing wires and the strip of fabric are introduced.          The strip of fabric, which is resiliently extensible in its longitudinal direction, is wetted, in the unextended state, before being introduced into the mould cavity, with an adhesive agent which hardens by drying and softens again at the tempera-ture of the liquid plastics material.  After the drying of the adhesive agent, the strip of fabric is introduced into the mould cavity and laid on the teeth of the moulding wheel.  In the mould cavity, the strip of fabric is heated on contacting the liquid plastics material, made resiliently extensible again as the adhesive agent softens and is pressed into the grooves between the teeth of the moulding wheel by the plastics material.
Patent CA-1182724-A (CA)
Inventor: SHULL BRUCE C
IPC: G01N33/72
Filed: 1983-02-18
Granted: 1985-02-19
Abstract: ABSTRACT OF THE DISCLOSURE    An improved reagent and method for assay of total bilirubin in biological fluids utilizes diazo sulfanilic acid to convert bilirubin to azobilirubin which is then quantitatively measured.  The improved reagent and method include the solvent accelerator tetramethylene sulfone.          The use of tetramethylene sulfone allows for the use of nonionic suriactants, obviating the need for serum blank correction in highly lipemic serum.  Furthermore, the use of tetramethylene sulfone and nonionic surfactants renders the reagent mixsture less viscous facilitating automated analysis.
Patent CA-1209535-A (CA)
Inventor: KUEHN SCOTT L
IPC: B66C21/04
Filed: 1983-03-09
Granted: 1986-08-12
Abstract: ABSTRACT OF THE DISCLOSURE         A remote controlled slack pulling log skidding carriage is provided for feeding a slack drag line toward a log to be skidded.  A drive sheave rotatably mounted in the carriage is operated by a hydraulic motor.  The fluid to operate the hydraulic motor is stored in one or more accumulators, and a radio controlled valve starts and stops the flow of fluid to the motor.  A mechanically operated hydraulic pump also is provided to recharge the accumulators during a skidding operation.
Patent CA-1200990-A (CA)
Inventor: VOUK KENNETH L
IPC: F16H25/24
Filed: 1983-03-18
Granted: 1986-02-25
Abstract: LOCKING MECHANISM        ABSTRACT OF THE DISCLOSURE   A mechanism (10) engageable with a threaded shaft (12) which includes a pair of nut halves (16, 18) movable into and out of engagement with the shaft (12).  The nut halves (16, 18) are received within spaced frame plates (32, 34) with one nut half (16) attached to the plates (32, 34) and the other nut half (18) slidable  between the plates (32, 34).  An elliptical cam member (44) received between the slidable nut half (18) and an end plate (36) connecting the frame plates (32, 34) is operable to move the nut halves (16, 18) between their engaged and disen-gaged positions.
Patent CA-1212561-A (CA)
Inventor: DONOMOTO TADASHI
IPC: C22C21/00
Filed: 1983-04-25
Granted: 1986-10-14
Abstract: COMPOSITE MATERIAL AND METHOD FOR PRODUCING SAME            ABSTRACT OF THE DISCLOSURE   A light metal composite material reinforced by alumina-silica fibers and a method for producing same. The composite material can have high mechanical qualities such as high workability and high wear resistance as well as high thermal qualities such as high fatigue resistance and high thermal conductivity and can also have high mating performance not to cause much wear of the mating member when the assemblage of alumina-silica fibers incorporated in the composite material as reinfocing members includes not more than 17 wt.% non-fibered particles, particularly not more than 7 wt.% of non-fibered particles of not smaller than 150 microns diameter, and has a virtual density of 0.08 - 0.3 g/cm3. The efficiency of production of the composite material is improved by binding the alumina-silica fibers provisionally with one another by an inorganic binder to have a compression strength not lower than 0.2 kg/cm2.