baber/WOPTO huggingface dataset:
Patent CA-1089316-A (CA)
Inventor: KEECH DAVID A
IPC: F16T1/30
Filed: 1978-08-29
Granted: 1980-11-11
Abstract: INVERTED BUCKET STEAM TRAP              ABSTRACT OF THE DISCLOSURE    An inverted bucket-type steam trap has a completely sealed casing of uniform wall thickness and preferably made of stainless steel.  The casing is comprised of an upper part and a lower part.  The lower part and the upper part both have a cylindrical wall portion which is open at one end and closed at the other end by a spherical segment-shaped bottom wall.  The upper part and the lower part are affixed to each other by welding.  The upper part has sidewardly extending outlet and inlet fitting means welded thereto.  A valve is provided in association with the outlet fitting means.  An inverted bucket is movable vertically inside the casing in response to the presence of condensate therein to operate the valve between opened and closed positions.  An inlet tube is provided inside the casing and it extends from the inlet fitting means into the lower end of the bucket.
Patent CA-1094926-A (CA)
Inventor: SNAVELY BENJAMIN H
IPC: A01F29/06
Filed: 1978-10-11
Granted: 1981-02-03
Abstract: SHEAR BAR FOR FORAGE HARVESTERS OR THE LIKE     ABSTRACT OF THE DISCLOSURE         An improved shear bar for cooperative interaction with the cutterhead of a forage harvester is disclosed.  The shear bar structure includes a multiplicity of elongate rib-like projections on the top surface thereof extending lengthwise away from the cutterhead.  A scraper for the lower infeed roll is also disclosed to have similar projections on the top surface thereof.
Patent CA-1066266-A (CA)
Inventor: CORKERY RICHARD
IPC: E21B19/15
Filed: 1978-10-17
Granted: 1979-11-13
Abstract: A B S T R A C T           The present invention relates to apparatus for lift-ing and transporting lengths of pipe, to and from a drilling platform.  The apparatus comprises: at least two pipe loading and/or unloading mechanisms, mounted transversally of the deck in spaced relation one to the other in the longitudinal direc-tion of the deck; at least two spaced apart pipe elevators mount-ed to one longitudinal side of the deck so as to depend therefrom; a "gin" pole adapted to be slidably mounted on the deck so as to extend vertically therethrough; a pipe deflector plate releas-ably mounted about the pole adjacent the upper end thereof, so as to extend radially and forwardly therefrom, the deflector plate being adapted to be rotatable about the vertical axis of the pole and lockable in any one of at least two angular posi-tions; a first cable extending between two fixed joints, one of these points being located on the pole, the second point located adjacent the deck remote from the pole; means for chang-ing the length of the first cable between the aforementioned fixed points; an open ended elongate semi-cylindrical pipe car-rier adapted to be freely supported by, and to hang beneath the first cable in substantially parallel juxtaposition there-with; a second cable provided to affect the movement of the carrier upon the first cable, the second cable being fixedly attached at one end to the carrier, and arranged to extend to and pass around a first pulley, fixedly attached to the pole, and thereafter to extend to motor driven winch means located adjacent the deck, remote from said pole.
Patent CA-1129510-A (CA)
Title: Switching arrangement [circuit] and process  to compensate harmonic currents
Inventor: HAUSLER MICHAEL
IPC: H02J3/01
Filed: 1978-11-06
Granted: 1982-08-10
Abstract: ABSTRACT OF THE DISCLOSURE This invention relates the switching arrangement to compensate harmonic current by means of a high-pass filter and a harmonic current rectifier.  In accordance with the invention, a high-pass wide-band filter consists of a reactive coil connected in parallel with a damping resistor, the parallel arrangement being connected in series with a condenser.  The high-pass wide-band filter is attached to the harmonic current rectifier.          In accordance with one embodiment, the harmonic current rectifier is positioned at the common connection point of the parallel arrangement and the condenser of the high-pass wide-band filter.
Patent CA-1117340-A (CA)
Inventor: JEPPSON MORRIS R
IPC: E01C23/06
Filed: 1978-12-13
Granted: 1982-02-02
Abstract: METHODS FOR SEALING AND RESEALING              CONCRETE USING MICROWAVE ENERGY          Abstract of the Disclosure Portland cement concrete at a roadbed, bridge deck or the like is quickly and deeply heated and dried by directing microwave energy into the concrete and by applying hot gas to the surface.  A layer of thermo-plastic sealant is applied to the hot concrete followed by an overlayer of asphaltic concrete having a higher softening temperature than the sealant layer.  Compaction then produces a composite pavement which is sealed against water intrusion and which can be quickly, easily and economically resealed and resurfaced at a later time using little or no additional paving materials.  Resealing and resurfacing is accomplished by deeply reheating all three layers by microwave irradiation followed by recompaction.          If cracking and deterioration are severe, the asphaltic concrete layer may be remixed and rescreeding between the reheating and recompaction steps.  Both the initial production of the composite pavement and the restoration processes can be accomplished on a continuous process basis while traveling along the roadbed, bridge deck or the like.
Patent CA-1114577-A (CA)
Inventor: ZIOLKO FRANCIS J
IPC: B26D5/20
Filed: 1979-01-19
Granted: 1981-12-22
Abstract: METHOD AND APPARATUS FOR PARTING A SEGMENT FROM A      LENGTH OF SHIRRED, THIN-WALLED TUBING                ABSTRACT OF THE DISCLOSURE       A method of parting a segment from an advancing length of shirred, thin-walled tubing.  The method comprises unfolding a portion of the shirred tubing intermediate the ends while the same is advancing by applying a separator to the shirred tubing.  After the portion is unfolded, the separator is removed, and the tubing is then parted in its unfolded portion to produce a segment of shirred, thin-walled tubing.      This invention also involves an apparatus for parting a segment from a length of shirred, thin-walled tubing.  The apparatus includes a support for the tubing and a device for advancing the shirred tubing along the support.  A separator is engageable with the shirred tubing to unfold a portion. Parting jaws positioned in advance of the separator are engageable with the tubing for severing the same in its unfolded portion to produce a segment of shirred, thin-walled tubing.
Patent CA-1085381-A (CA)
Inventor: MAYO TERRY H
IPC: E21B10/22
Filed: 1979-01-29
Granted: 1980-09-09
Abstract: ABSTRACT OF THE DISCLOSURE    A rolling cutter drill bit is disclosed which utilizes a plurality of rolling cutters each rotatably mounted on a lug member having a downwardly extending bearing journal.  Each bearing journal has a ball bearing race formed therein for receiving a series of ball bearings which also seat in a mating ball bearing race formed in the rotatably mounted cutter.  The ball bearings are arranged to share the axial loading placed on the rolling cutter and primarily lock the cutter on the journal shaft.  Each journal is further provided with a unique large thrust surface across the downward end of the bearing shaft and generally perpendicular to the radial bearing surface.  The large flat perpendicular thrust surface eliminates the need for a standard pilot pin structure normally found in rolling cutter bits.  The elimination of the pilot pin structure allows the radial bearing surfaces to be machined in a more economic manner and eliminates the accumulated tolerances between concentric bearing surfaces which previously contributed greatly to cocking of the cutter on the journal and the resulting high stress single point loading which occurs from the cocking action of the cutter.
Patent CA-1131829-A (CA)
Inventor: WADDILL HAROLD G
IPC: C08L63/00
Filed: 1979-03-16
Granted: 1982-09-14
Abstract: PROCESS FOR ACCELERATED CURE OF EPOXY RESINS        ABSTRACT OF THE DISCLOSURE           (D#75,671-F) A process for the accelerated cure of an epoxy resin is disclosed.  The resulting epoxy resin may be used in protective coatings, adhesives, seamless and terrazo flooring and caulking and sealing compositions.  The re-sulting resin is also useful, for example, in casting, potting, in escapulating, grouting and patching.  The pro-cess involves mixing an epoxy resin of the polyhydric phenol, polyglycidyl ether type with a curing agent comprising the reaction product of an epoxy resin with an excess of an aminoalkylene derivative of a polyoxyalkylenepolyamine.                             I
Patent CA-1112390-A (CA)
Inventor: YANKNER PAUL R
IPC: C08K9/00
Filed: 1979-03-20
Granted: 1981-11-10
Abstract: Abstract A particulate, relatively free-flowing rubber process-ing aid capable of imparting release properties and improved flow characteristics to rubber during compounding and molding of the rubber, comprises petrolatum and particulate clay in proportions of petrolatum to clay of from about 1:4 to about 4:1.  The amount of processing aid which is effective to impart improved release and flow properties is from about 0.1 to about 5 weight percent of the total rubber compound.
Patent CA-1110115-A (CA)
Inventor: COULSTON ELLWIN L
IPC: E06B7/23
Filed: 1979-03-28
Granted: 1981-10-06
Abstract: Abstract of the Disclosure An elongated weatherstripping for sealing against a hingedly mounted closure member such as a door around the periphery thereof is adapted to be mounted to extend longitudinally along one or more stop elements of a frame in facing relation with one side face of the hinged closure member.  The weatherstripping comprises:  a body of flexible material having an inner portion including a base and key means adapted to be secured to a stop element on the frame.  An edge portion of the base projects laterally outwardly along one edge of and in overlapping relation with the stop element beyond the key means along one edge thereof.  The base is of outwardly convex transverse cross-section facing away from the key means.  A deflectable outer sealing element of flexible material is integral with the body and pivotally joined to the base along an outer edge of the laterally projecting edge portion in a reverse turn.  The sealing element is of outwardly convex transverse cross-section having an outwardly facing curved sealing surface adapted to seal against the side face of the closure member when in a closed position with respect to said frame.  The curved sur-face extends outwardly from the reverse turn toward the closure member adjacent a mid portion thereof.  The outer sealing element is deflectable inwardly toward the body upon pivotal movement resulting from inward contact and sliding lateral contact with the closure member when it is pivotally moving toward the closed position with respect to the frame. The outer seal-ing element includes an inwardly deflectable free edge opposite the reverse turn.
Patent CA-1124713-A (CA)
Inventor: MORA ENRICO C
IPC: C07D457/02
Filed: 1979-04-04
Granted: 1982-06-01
Abstract: ABSTRACT      A novel process is disclosed for the preparation of derivatives of lysergol having the general formula:                  According to this process lysergol is directly used as the starting compound and, after the methylation at the 1 position of corresponding 10 alpha-methoxy-lumilysergol, the methy-lated compound is directly esterfied with a carboxylic acid R-COOH, the acid being selected in the group comprising aliphatic, cyclo-aliphatic, aromatic, and heterocyclic carboxylic acids, containing up to 10 carbon atoms.
Patent CA-1130482-A (CA)
Title: Mine hoist drive
Inventor: EASTCOTT PETER DEH
IPC: H02P7/292
Filed: 1979-04-12
Granted: 1982-08-24
Abstract: Case 2609 MINE HOIST DRIVE           ABSTRACT OF THE DISCLOSURE       A friction-type mine hoist drive has at least one d.c. motor to drive the hoist.  Two six pulse converters are connected in series to provide d.c. power for the motor.  A free-wheeling diode is connec-ted across the output of one converter.  A control uses a first one of the converters (without the free-wheeling diode) to provide power for the hoist for the first 50% of the speed range and then phases on the second of the converters to add power from 50% to substantially 100% speed.  While there is no kvar reduction in the first converter the kvar demand is less than 50% of conventional back to back converter, and the free-wheeling diode across the second converter reduces kvar demand and reduces ripple when the second converter is operating.  There is little requirement for fourth quadrant operation because deceleration is normally taken care of by gravity.  However the possibility of fourth quadrant operation may be handled in several ways.  First, a load value is determined for a particular hoist representing the dividing point between inversion being required and not required when decelerating from full speed.  By measuring speed and current when the hoist begins operation, the actual load is determined and the actual load compared with the predetermined load value. If inversion might be required when decelerating from full speed, the hoist can be limited to half speed by locking out the second converter and operating with the first converter.  As one alternative the first converter can handle the requirement for inversion by operating in the fourth quadrant when required.  As another alternative, a switch can be provided in series with the free-wheeling diode to remove it from continued.........                                           Case 2609 ABSTRACT OF THE DISCLOSURE (continued) the circuit to make both the first and second converters available for fourth quadrant operation.
Patent CA-1114774-A (CA)
Inventor: RAPIDS FELIX R
IPC: C25D17/00
Filed: 1979-05-14
Granted: 1981-12-22
Abstract: ABSTRACT      A hand held plating applicator for electroplating a relatively soft metal onto a substrate consisting of an anode composed of the relatively soft metal, an electrically insulating handle, and a backing composed of a metal substantially harder than the relatively soft metal. The backing is secured to the handle, and has a plurality of countersunk apertures therein, the soft anode having integral protuberances which extend through the apertures and hold the anode in firm contact with one face of the backing. The protuberances are flattened at their ends to fill up the countersunk portions of the apertures, and provide surfaces which are flush with the opposite face of the backing.
Patent CA-1099501-A (CA)
Inventor: LILLIE CHARLES R
IPC: B23C5/22
Filed: 1979-06-04
Granted: 1981-04-21
Abstract: ABSTRACT    An insert type end milling cutter and cutting insert for the same which facilitates metal removal.  Each insert has a cutting edge which is defined by the intersection of a cutting face and a land area.  The cutting face is disposed so as to have a neutral rake angle and the cutting edge itself lies in a single plane but has a generally sinusoidal configuration in a direction normal to the cutting face.  The milling cutter includes a plurality of insert locating grooves which locate the inserts in a manner such that the cutting edges form straight helixes over at least a portion of the cutter length.  The inserts may be reasonably retained in the locating grooves to facilitate ease of removal for repair or replacement purposes.
Patent CA-1138427-A (CA)
Inventor: VORK WILLIAM D
IPC: B01F11/00
Filed: 1979-06-27
Granted: 1982-12-28
Abstract: Patent Docket 5050-298 APPARATUS FOR MIXING LIQUIDS     ABSTRACT OF THE DISCLOSURE      Apparatus for mixing liquids such as paints in closed containers, including a motor drive unit coupled to a drive pulley to produce a constant ro-tational speed.  The drive pulley is connected via an eccentric crank to a shaker plate which has mounted therein a container housing, the shaker plate being also supported from at least two other points by similar crank couplings so as to produce a circular oscillating motion when the drive motor is actuated.
Patent CA-1113250-A (CA)
Inventor: CHARLES JAMES A
IPC: C22B1/24
Filed: 1979-06-27
Granted: 1981-12-01
Abstract: ABSTRACT     A process for roasting zinc/lead sulphide materials, comprising forming substantially spherical pellets composed predominantly of lead sulphide, coating these with predominantly zinc sulphide material, and then roasting the coated pellets in a roasting apparatus to effect oxidation of sulphide, predominantly to oxide.
Patent CA-1105716-A (CA)
Inventor: BRADUS ROBERT
IPC: A01D34/416
Filed: 1979-07-03
Granted: 1981-07-28
Abstract: IMPROVED PORTABLE, ELECTRICALLY ENERGIZED, CORDLESS GRASS TRIMMER     ABSTRACT OF THE DISCLOSURE             A portable, electrically energized, cordless grass trimmer device is disclosed having a rotatable hub which is adapted to alternatively mount, for substantially balanced rotation therewith, a flexible cutter strip and a line cutter and mechanical counterbalance.
Patent CA-1138186-A (CA)
Inventor: FARKAS RICHARD W
IPC: C08K3/04
Filed: 1979-08-10
Granted: 1982-12-28
Abstract: Abstract:         Disclosed are improved melt processable, self-temperature regulating, irradiation cross-linkable, electrically semi-conductive polymeric compositions (5) which in conjunction with annealing at a temperature at or above their melt point temperatures subsequent to their having been radiation cross-linked provide for improved self-temperature regulating electrical heating devices (1) including flexible electrical heating cables. Heating cables (1) made in accordance with the invention comprise two or more elongate substantially parallel spaced-apart electrical conductors that are electrically interconnected by means of extruded forms of the com-positions which have been annealed at a temperature at or above their melt point temperatures prior and subsequent to their having been cross-linked by irradia-tion.  The compositions of the invention have an amount of electrically conductive particles, such as carbon black, dispersed therein, that is controlled within the range of 17% to 25% by weight to the total weight of the compositions.
Patent CA-1116073-A (CA)
Title: Methods and apparatus for severing conduits
Inventor: REGALBUTO JOHN A
IPC: F42B3/08
Filed: 1979-09-18
Granted: 1982-01-12
Abstract: METHODS AND APPARATUS FOR SEVERING CONDUITS         Abstract of the Disclosure Apparatus for severing a conduit along a plane generally transverse to the axis of the conduit which includes two confined explosive charges aligned axially with the conduit and terminating at opposed proximal convexly shaped ends facing each other across a space disposed in such transverse plane.  A liner formed of high density ductile material having radially increasing thickness is attached to each of the proximal ends of the charges and detonation devices are disposed at the dis-tal ends of the charges for originating simultaneous detonation of the charges.  Methods of severing conduit using the apparatus are also provided.
Patent CA-1138533-A (CA)
Inventor: WEISS BERNARD J
IPC: F24C7/02
Filed: 1979-10-18
Granted: 1982-12-28
Abstract: ABSTRACT OF THE DISCLOSURE A combined microwave and convection heating oven in which microwave energy is prevented from escaping from the oven into the region where the va-por, which is circulated through the oven, is heated by the products of com-bustion from a gas burner.
Patent CA-1116913-A (CA)
Inventor: ST LOUIS PAUL T
IPC: E02D3/046
Filed: 1979-10-30
Granted: 1982-01-26
Abstract: BACKHOE MOUNTED VIBRATING PLATE SOIL COMPACTOR  ABSTRACT A  hydraulically operated vibratory soil compactor adapted for use with a loading boom such as a backhoe. Improved construction includes a rectangular structural steel tube welded to a vibrating base plate for providing: structural rein-forcement; a sealed housing for an eccentric weight vibrator; and, a supporting surface for shear type springs or shock mounts. A hydraulic drive motor is also mounted on the outside of the central tube member. Improved construction further includes an I-beam section welded between a pair of inverted U-shaped plates to form a tunnel type mounting frame having four arms for connection to the shock mounts supported on the tube member.
Patent CA-1131246-A (CA)
Title: Process for the production of unsaturated  esters
Inventor: KAMIYAMA SETSUO
IPC: B01J23/00
Filed: 1979-11-13
Granted: 1982-09-07
Abstract: (Jap. 142,244/78) ABSTRACT OF THE DISCLOSURE           The invention relates to a process for the production of an unsaturated glycol diester by the reaction of a conjugated diene compound, a carboxylic acid and molecular oxygen in the presence of a solid catalyst. For example, 1,4-diacetoxy-2-butene is prepared at high conversion and high selectivity by reacting butadiene, molecular oxygen and acetic acid in the presence of a solid catalyst containing palladium, tellurium and at least one element selected from the group consisting of tin, germanium and zinc. The production is an intermediate for the preparation of 1,4-butanediol.
Patent CA-1151511-A (CA)
Inventor: REAUME LEONARD V
IPC: B27L7/04
Filed: 1979-11-26
Granted: 1983-08-09
Abstract: LOG SPLITTER ATTACHMENT FOR      GARDEN TILLER ABSTRACT OF THE DISCLOSURE         This invention resides in a log splitter attachment for garden tiller, a unique bearing arrangement for same, and the combination of a garden tiller and such an attachment.  The attachment includes a rigid ground engaging base frame having means thereon to support the tiller tine shaft of a garden tiller and a log to be split.  Preferably the base frame will also support the garden tiller itself when used with the log splitter attachment.  An auger is provided and is mounted on a shaft adapted to slip over one end of the tiller tine shaft.  The auger shaft is secured to the tiller tine shaft and supported in a bearing member which is affixed to the base frame.  The other end of the tine shaft is engaged within a spacer located in a corresponding bearing member and the spacer is attached to the tine shaft.  Preferably the bearing members for the tine shaft are slotted just enough to receive the tine shaft but not the auger shaft or spacer; these enter the bearing member axially thereof and cannot pass through the slots.  The auger extends to one side of the base frame.  A log holding member is fastened to the base frame and extends to the same side as the auger, being spaced from but parallel to such auger.  When the tiller motor is actuated so as to drive the tiller tine shaft, the auger and auger shaft will rotate therewith.  The operator then moves a log, supported at one end on the log support, into contact with the auger where-after the auger screws itself into the log to split it open.
Patent CA-1122165-A (CA)
Inventor: REITH CHARLES
IPC: A47B96/14
Filed: 1979-12-17
Granted: 1982-04-20
Abstract: ABSTRACT OF THE DISCLOSURE:          A shaped upright with rack for fixing to any support whatever, having a double U section with median parallel legs joined by the rack and lateral legs which are smaller in height than the median legs, the bottoms of the Us being pierced with aperture for passing therethrough means for fixing to the support, a pair of removable masks in the shape of countersections made from a flexible material capable of completely surrounding the shaped upright, each countersection having at its outer edge means for clipping to a lateral leg of the shaped upright.