baber/WOPTO huggingface dataset:
Patent CA-1157221-A (CA)
Inventor: SMITH W CHRISTEN
IPC: F23J13/02
Filed: 1981-06-04
Granted: 1983-11-22
Abstract: APPARATUS FOR DISCHARGING EXHAUST GAS AT HIGH VELOCITY            Abstract of the Disclosure A roof-mounted apparatus is disclosed for discharging exhaust gas at a high velocity.  The apparatus includes a stack having a tapered annular cross-section for achieving a relatively high discharge velocity for exhaust gas so that the effective height of the stack is equivalent to that of a considerably taller conventional chimney.  The tapered annular stack preferably includes an outer wall and a coaxial inner wall which tapers outwardly toward the outer wall from the bottom to the top of the stack.  An in-line fan having an annular outlet which communicates with the bottom of the tapered annular stack is preferably included for impelling exhaust gas admitted to the inlet of the fan into the stack.  The inlet of the in-line fan preferably communicates with the outlet of a mixing chamber which is included for mixing diluent fresh air with exhaust gas admitted to the inlet of the mixing chamber through the roof of an industrial plant for diluting the exhaust gas as well as increasing the volume of gas to be discharged in order to achieve the desired discharge velocity,  Other features, such as a system for cooling the motor included in the in-line fan, are also disclosed.
Patent CA-1187546-A (CA)
Inventor: LEOPOLD HOWARD S
IPC: H05B39/04
Filed: 1981-06-18
Granted: 1985-05-21
Abstract: ABSTRACT OF THE DISCLOSURE       A variable voltage power supply includes a switching device through which line AC current is passed in response to the time during which a level setting voltage is applied to a control circuit for the switching device.  During the duration of the level setting signal, periodic electrical signals are applied to a counter which is cyclicly incremented and decremented between predetermined lower and upper count limits until the level setting signal is terminated.  The count is used as a measure of time into each half cycle of the line AC voltage  at which the switch device is closed, the switch device being opened in response to the zero voltage crossing at the end of each half cycle of the AC voltage.
Patent CA-1160253-A (CA)
Inventor: BRIGGS GARRY L
IPC: C04B22/04
Filed: 1981-06-25
Granted: 1984-01-10
Abstract: ABSTRACT OF THE DISCLOSURE        An expansive additive for cement compositions is provided of the type used in cementing oil and gas well bores. Aluminum particles are coated with a gasoline and water insoluble wood resin to provide added control over the nature and extent of gas generation in the slurry.
Patent CA-1162889-A (CA)
Inventor: NICHOLSON WALTER
IPC: E02F3/40
Filed: 1981-07-27
Granted: 1984-02-28
Abstract: W ?2 FV-1 HBR:ajh MULTI-TINED CLAW/RAKE ATTACHMENT           ABSTRACT         A claw/rake tool attachment for use with a powered digging or material moving machine.  The attach-ment is for clearing undergrowth and timber and consists of spaced parallel tines mounted onto a support means that is affixed to the work arm of a machine.  The undergrowth and timber are held by the tines while un-wanted material such as soil and the like passes through the space between the tines and is not carried with the undergrowth and timber being cleared.
Patent CA-1174561-A (CA)
Inventor: WESTVEER ROBERT C
IPC: F04B49/00
Filed: 1981-09-21
Granted: 1984-09-18
Abstract: Hydraulic Control System Abstract An hydraulic control system is disclosed which com-prises a fluid reservoir (14), a variable displacement pump (12) having a fluid input connected to the reservoir and a fluid output, and a fluid pressure actuated dis-placement of the pump.  A control valve (18) is connected to the fluid output of the variable displacement pump and to the reservoir and is adapted to control the flow of fluid to a fluid actuated device.  The control valve in-cludes means (44, 50, 52, 54, 56) for regulating flow of a signal fluid provided either by a constant displacement pump (46) or a pressure actuated flow control valve (47). A sensor valve (58) is placed in fluid communication with the signal fluid, the displacement control mechanism, and the reservoir for placing the signal fluid in communica-tion with the displacement control mechanism or for plac-ing the displacement control mechanism in communication with the reservoir, in response to changes in the pressure of the signal fluid, thereby controlling the displacement of the pump in response to the magnitude of the pressure of the signal fluid.
Patent CA-1148890-A (CA)
Inventor: LISEC PETER
IPC: E06B3/673
Filed: 1981-09-22
Granted: 1983-06-28
Abstract: Abstract of the Disclosure The invention relates to apparatus for conveying double-glazing assemblies which are slightly inclined from the vertical and have peripheral grooves filled with a sealing compound.  Pairs of mutually opposite supports are provided, which are moved in the direction of conveyance and have substantially horizontal supporting surfaces engaging the lower edge face of each of the individual glass panes of each double-glazing assembly only in an outer portion of said lower edge face.  Backing rollers are provided, which are freely rotatably mounted on substantially vertical axes and adapted to engage the assembly only close to its upper edge.  By this arrangement, contamination of the apparatus by sealing compound and soiling of the glass panes by the backing rollers is avoided.
Patent CA-1175105-A (CA)
Inventor: STAMM MICHAEL E
IPC: G01V3/17
Filed: 1981-11-05
Granted: 1984-09-25
Abstract: ABSTRACT OF THE INVENTION A process for geotechnic exploration comprising the steps of:      (a) Emitting one or more brief electromagnetic pulses or waves from an airborne platform at regular intervals based on the airspeed of the platform and the area being surveyed; (b) The wavelengths, frequencies and cyclicity of the waves being selected to provide, upon reflection, satisfactory indicia of the physical characteristics of the area being measured;              (c) Receiving the reflections of said waves at said platform;              (d) Amplifying said reflected waves to a readily processable level;              (e) Processing said waves to enhance the spatial resolution of images produced therefrom;    (f) Further processing said waves by selecting those varibles represented by the waves that are deemed relevant; (g) Displaying said waves in visual form representing a cross-section of an area; (h) If desired, storing in recoverable form the signals representing said variables; and (i) Repeating said process as often as desired. The invention includes the aircraft-mounted radar apparatus for performing the process.
Patent CA-1163463-A (CA)
Inventor: FUTEKOV LYUBOMIR P
IPC: G01J3/42
Filed: 1981-11-12
Granted: 1984-03-13
Abstract: ABSTRACT OF THE DISCLOSURE:       A device for pulse dosage of liquid microsamples into the flame of an atom absorption spectrophotometer, including a distributor and an electromagnetic valve, characterized that the device is constructed of two units at most, the units being located at different levels in respect to the pulverizer of the atom absorption spectro-photometer, wherein the distributors are of the three-way type and there is a connection provided between the distributors and the electromagnetic valves, the three-way distributor of the higher level unit being connected to a container for the sample, to the atmosphere by means of an electromagnetic valve and to the pulverizer of the atom absorption spectrophotometer by means of the three-way distributor of the lower level unit, said distributor of the lower level unit being connected to a container for the sample solvent.
Patent CA-1167963-A (CA)
Inventor: JIANG CHING-LIN
IPC: G11C11/56
Filed: 1981-12-23
Granted: 1984-05-22
Abstract: MULTI-BIT READ ONLY MEMORY CELL SENSING CIRCUIT     ABSTRACT OF THE DISCLOSURE A multi-bit read only memory sensing circuit (10) is provided.  A plurality of storage transistors (30, 32, 34, 36) are arranged in rows (28) and columns (20, 22) and each have a predefined permanent threshold voltage. A plurality of reference transistors (40, 42, 443 are provided.  Circuitry (100, 102, 104, 106) is provided for selectively comparing the output voltage of ones of the plurality of reference transistors (40, 42, 44) to the output voltage of the plurality of storage transistors (30, 32, 34, 36) to thereby determine the voltage level stored in each of the plurality of storage transistors (30, 32, 34, 36).
Patent CA-1159442-A (CA)
Inventor: BECKER FLOYD W
IPC: E21B17/18
Filed: 1982-02-24
Granted: 1983-12-27
Abstract: ABSTRACT OF THE DISCLOSURE The specification describes a dual-wall drill pipe section comprising an outer pipe member having a box end formed with an internal thread and a pin end formed with an external thread for engagement with the box end of another outer pipe member, the bore of one of the ends of the outer pipe member is formed with a shoulder and a circumferential, inwardly facing groove axially spaced from the shoulder, an inner pipe member concentrically disposed within the outer pipe member so as to define an annular passage between the inner and outer pipe members, spacer members connected to each end of the inner pipe member and disposed in the annular passage for maintaining concentricity between the inner end outer pipe members, the spacer members at one end of the inner pipe being formed with a shoulder for abutting engagement with the shoulder of the outer pipe member so as to axially locate and support the inner pipe member within the outer pipe member, and at least one spring member connected to the inner pipe member and having a portion engageable with the groove of the outer pipe member for resiliently and frictionally retaining the inner pipe member within the outer pipe member during storage and handling of an assembled pipe section.
Patent CA-1169827-A (CA)
Inventor: LEONARD BRIAN B
IPC: B05B9/04
Filed: 1982-03-19
Granted: 1984-06-26
Abstract: ABSTRACT OF THE DISCLOSURE           An ambulant liquid spray apparatus includes a portable liquid storage tank having shoulder carrying straps, a single-action pump for spraying the contents of the tank and a flexible hose communicating one end of the pump with the stored liquid.  The pump body defines a cylindrical chamber in which is slidably disposed a rigid tube having a free end with a non-telescoping handle extending outwardly of the chamber for reciprocably displacing the tube within the chamber and a pair of check valves located within the tube and pump body direct a unidirectional flow of liquid through the chamber and tube as the tube is reciprocably displaced.  A packing gland nut sealably closes the other end of the chamber intermediate the body and tube, the nut having sidewalls defining an aperture aligned coaxially with the chamber for slidably guiding the tube, seal means inter-mediate the sidewalls and tube, and an annular chamber formed in the sidewalls and defining a lubricant reservoir intermediate the sidewalls, seal means and tube so that a liquid lubricant confined to the reservoir lubricates effectively the portion of the tube slidably guided by the nut.
Patent CA-1185472-A (CA)
Inventor: OSAWA AKIRA
IPC: D21C9/02
Filed: 1982-03-23
Granted: 1985-04-16
Abstract: IN-LINE WASHING SYSTEM            ABSTRACT OF THE DISCLOSURE:    In an in-line washing system, a washing tower held at the same pressure as a digester is provided as separated from the digester so that an own weight of raw material in the digester may not influence a density of raw material in the washing tower, whereby a linear velocity through the washing tower of washing liquid can be increased by reducing compression of the raw material introduced into the washing tower.
Patent CA-1178406-A (CA)
Inventor: SCOTT ERNEST R
IPC: A47L9/14
Filed: 1982-06-17
Granted: 1984-11-27
Abstract: BAG TOP COVER ASSEMBLY FOR A VACUUM CLEANER   ABSTRACT OF THE DISCLOSURE          An upright vacuum cleaner having a motor housing, a handle pivotally attached to the housing, and a flexible dirt-receiving bag extending between the housing and the handle is disclosed.  A top cover assembly is provided for supporting the top of the bag, and includes a rectangular cup-shaped cover having top, side, and end faces enveloping a portion of the top of the bag.  An attaching assembly is pro-vided for attaching the cover to the handle and to the top of the bag within the cover.  The attaching assembly includes a wire hanger extending through the top face of the cover and then extending from a location adjacent one end of the cover toward the other end of the cover.  The attaching assembly further includes a clamping web fixed to the underside of the top face.  Downwardly and inwardly extending ends of the web enter pleats at the sides of the bag to removably hold the bag in place within the cover.
Patent CA-1194370-A (CA)
Title: Carbon dioxide treatment of epoxy resin compositions
Inventor: WU YULIN
IPC: C08G59/18
Filed: 1982-08-13
Granted: 1985-10-01
Abstract: Abstract of the Disclosure An epoxy resin composition is provided which contains carbon dioxide as a cure retardant.  The composition comprises an epoxy resin, a curing agent for the epoxy resin, a hydrocarbon diluent and carbon dioxide.  It can optionally contain an alcohol.  The presence of the carbon dioxide enables preparation of an epoxy resin and curing agent solution which can be stored and transported to the site of application without curing of the resin until after application.  The composition is useful, for example, as a corrosion inhibitor for metal surfaces, and is particularly useful for downhole metal equipment at oil and gas drilling sites.
Patent CA-1187739-A (CA)
Inventor: CRAWFORD ALEXANDER
IPC: A01F15/14
Filed: 1982-08-23
Granted: 1985-05-28
Abstract: ABSTRACT OF THE DISCLOSURE         An apparatus for coordinating the operation of the bale tying mechanism with the feeding apparatus of a baler.  The baler (10) includes a bale chamber (16), feeding means (26) including a pair of feed rollers (36) which are moved back and forth across the inlet end by reciprocating means (46, 48) including a hydraulic cylinder.  The bale tying means includes a knotter (64), a pickup needle (110), and a knotter shaft (76) capable of driving the knotter and the needle.  The actuating means which is capable of actuating the bale tying means includes a bale length metering mechanism (202 to 218), a constantly driven sprocket (230), and a single revolution clutch (220), the actuating means being capable of initiating the operation of the clutch (220) to cause rotation of the knotter shaft (76) when the bale length has been achieved.  The coordinating apparatus of this invention which is capable of preventing the operation of clutch (220), except when the pair of rollers (36) have been reciprocated to their desired position, includes a bell crank (238) and a slidable link (236), both normally spring biased to a stop position but capable when one end of the bell crank is engaged by the reciprocating means to enable operation of the single revolution clutch (220).
Patent CA-1182318-A (CA)
Title: Apparatus for reducing vibration in a rotating  press roll couple
Inventor: BOLLANI UMBERTO F
IPC: D21F3/00
Filed: 1982-10-29
Granted: 1985-02-12
Abstract: ABSTRACT OF THE DISCLOSURE       A mechanism for a press section of a papermaking machine including a press having first and second press rolls forming a pressure loaded press nip therebetween with a support frame and end bearings for the first roll with a support carrying the end bearings on the frame including first and second layers of deformable elastic material with a plate connected to the bearing between the layers of material and plates on the outer surfaces of the layers connected to the frame so that vibrational forces normal to the direction of movement of the web through the nip are passed through the layers of elastic material.
Patent CA-1158307-A (CA)
Inventor: CUK SLOBODAN M
IPC: H02M3/145
Filed: 1982-11-09
Granted: 1983-12-06
Abstract: ABSTRACT Disclosed is a switching power amplifier of high efficiency, small size and weight and excellent dynamic performance, together with reduced pul-sating for both input and output currents.  Switching ripple is completely eliminated, unlike in conventional designs.  The amplifier is provided by a pair of converters with feedback control of the pulse width of applied switch-ing pulses.  Each converter has two inductances, one in series with a DC power source and one in series with the load, storage capacitance, and switching means for alternately connecting the junction between the first inductance and the storage capacitance to ground return for the source, and connecting the junc-tion between the storage capacitance and the second inductance to ground return for the load.  When the input inductances of the two converters are made equal, the ripple input currents to the two converters result in zero-ripple source current.  The switching means for one of the two converters is driven with the complement of the pulse-width modulated control signal applied to the other.  In each converter, the input and output inductors are coupled by providing the in-ductors as windings of a transformer designed for the condition n = k, where n is equal to the square root of the ratio of the self-inductances of the input and output windings, and k is the coupling coefficient between the windings for zero output current ripple.
Patent CA-1185993-A (CA)
Inventor: EDWARDS CHARLES L
IPC: B01J21/10
Filed: 1982-12-13
Granted: 1985-04-23
Abstract: A B S T R A C T     PROCESS FOR PREPARING ALKANOL ALKOXYLATES     Alkanol alkoxylates having utility, for example, as non-ionic surfactants in detergent formulations are prepared in accordance with the invention by reaction of C6 to C30 alkanols with C2 to C4 alkylene oxides in the presence of at least one alkanol-soluble basic compound of magnesium and, as reaction activator, at least 2 percent by mol, calculated on mols of alkanol, of at least one alkoxylate of at least one C1 to C30 alkanol having from 1 to 30 C2 to C4 alkylene oxide moieties.
Patent CA-1185098-A (CA)
Title: Lawnmower with longitudinal support frame
Inventor: SCANLAND JOSEPH E
IPC: A01D34/81
Filed: 1982-12-22
Granted: 1985-04-09
Abstract: ABSTRACT OF THE DISCLOSURE           A rotary lawnmower of the type having an inverted pan-shaped housing generally surrounding a horizontal rotary blade affixed to a vertical shaft extending downwardly from a rotary power source mounted on the top of the housing.  A pair of tubular longitudinal frame members extend bridgingly in horizontal position over and secured to the housing on opposite sides of the rotary power source with downward extensions secured to front and rear wheels.  The downward extensions are also affixed to front and rear aprons extending horizontally from the lower edge of the side wall of the housing to provide mutual bracing.  The lawnmower has a handle that is attached to the rear downward extensions of the longitudinal frame members so that forces developed in the handle incident to guiding the mower are transferred directly to the frame members and then directly to the wheels so that the housing is not stressed upon manipulation of the handle.  The forces generated in the wheels when striking a bump or hollow are similarly by-passed around the housing.  The rigidity gained by the attachment of a longitudinal frame members to the top of the housing and to the forward and rear aprons combined with the direct transfer of force from the handle to the wheels permits the housing to be stamped from lighter weight sheet metal.
Patent CA-1195704-A (CA)
Inventor: SWANSON JOHN L
IPC: A01K1/01
Filed: 1982-12-24
Granted: 1985-10-22
Abstract: "SNOWBLOWER"          ABSTRACT OF THE DISCLOSURE          A snowblower includes an auger havingindividual flat spring steel blades mounted on plates carried by a shaft.  The blades are connected to the plates by a pivot pin and a shear pin so that on encountering a solid object the shear pin allows the blade to pivot while remaining attached to the shaft.
Patent CA-1192227-A (CA)
Inventor: SIMONS LESLIE H
IPC: C07C27/00
Filed: 1983-01-20
Granted: 1985-08-20
Abstract: ABSTRACT OF THE DISCLOSURE        Ethylene glycol and lower monohydric alcohols are prepared from syngas in good yield by contacting a mixture of carbon monoxide and hydrogen with a catalyst system comprising a ruthenium-containing compound and a special substituted aromatic compound both dispersed in a low melting quaternary phosphonium salt and heating the resulting mixture at a temperature of at least 150°C. and a pressure of at least 500 psi for sufficient time to produce the desired ethylene glycol and monohydric alcohols, and then removing the same from the reaction mixture.
Patent CA-1198096-A (CA)
Inventor: GATWARD DOUGLAS K
IPC: B65B67/12
Filed: 1983-03-02
Granted: 1985-12-17
Abstract: ABSTRACT                      Waste Bag Holder A waste bag holder for kitchens etc., has a lid which holds the bag in place on a frame using gripping means which also function as a hinge.
Patent CA-1215568-A (CA)
Title: Apparatus and method for making cartons
Inventor: MARTIN WILLIAM E
IPC: B31B1/00
Filed: 1983-03-18
Granted: 1986-12-23
Abstract: ABSTRACT OF THE DISCLOSURE         Apparatus making foldable box blanks of pre-printed corrugated material by continuously delivering pre-printed web material to a reciprocating press which is operated intermittently to cut and score the web material and utilizing an accumulator mechanism which receives the pre-printed web material continuously and delivers it intermittently.
Patent CA-1198151-A (CA)
Inventor: KINGSLEY WILLIAM
IPC: B65H29/60
Filed: 1983-05-20
Granted: 1985-12-17
Abstract: ABSTRACT    An automatic document handling system particularly suitable for raster input scanners which is capable of operating in either a simplex or duplex document handling mode. The document handling system has document input and output trays in operative relation with a reversible document transport roll which in turn cooperates with a pair of displaceable pinch bars to provide both a document feeding nip and means for selectively routing the document for either duplex and simplex processing. A document guide having an integral control gate effects inverting and recirculation of the document for duplex mode or in simplex mode return of the document to the document supply tray.
Patent CA-1202000-A (CA)
Inventor: BIES SYLVESTER W
IPC: A47F7/00
Filed: 1983-06-06
Granted: 1986-03-18
Abstract: ABSTRACT      An assembly for holding a socket driver, an extension, or a spinner includes an L-shaped bracket member which has means thereon for engaging either the head or the shank portion of the tool.  The assembly also includes a slide locking member that is engaged with a support wall of the bracket, to trap another portion of the tool (the shank or a section of the handle) and thereby retain the tool in the assembly.  The package is adapted for point of sale display to present the article to the customer in an attractive manner, while protecting it against physical damage and pilferage; the slide locking member is capable of removal without damage to the assembly, thereby permitting reuse for storage of the tool part by the purchaser.