baber/WOPTO huggingface dataset:
Patent CA-1141698-A (CA)
Inventor: SCHRADER GUSTAV E
IPC: B23H3/00
Filed: 1978-04-13
Granted: 1983-02-22
Abstract: Abstract of the Disclosure:  An improved apparatus for electro-lytically removing material from a workpiece includes a plura-lity of electrodes which are movable relative to each other through working strokes.  In order to coordinate the movement of the electrodes, they are stopped at one or more predetermined intermediate positions during their working strokes.  When all of the electrodes have arrived at intermediate positions, the elect odes are simultaneously moved away from their intermediate positions toward their end of stroke positions.  In order to accommodate variations in the rate at which material is electro-lytically removed from a workpiece, the speed of movement of the electrodes and/or the electrical potential established be-tween the electrodes and the workpiece can be varied.  Relative-ly large diameter rams connected with the electrodes are supplied with fluid from relatively small diameter piston and cylinder typo pumps.  During each electrode working stroke, the piston and cylinder type pumps are driven through a plurality of pumping strokes by reversible driving motors which are con-nected with the pumps by relatively short linear ball screw and nut drive arrangements.  To insure that a reversal in the direction of operation of a typical screw and nut drive arrange-ment does not occur during the final portion of a working stroke, each of the electrodes is stopped at an intermediate position shortly before the end of its working stroke.  The piston and cyl-inder type pumps are then returned to beginning of pumping stroke positions and are then simultaneously operated through a portion of a pumping stroke to effect movement of each of the electrodes to its end of working stroke position.  Accurate positioning of the electrodes relative to each other and the workpiece is promoted by the utilization of a plurality of devices such as photoelectric sensors which detect when an electrode is in a predetermined position.   To facilitate accurate placement of the electrodes relative to the workpiece, the electrodes can be adjusted by wedge type bearings  along either one of two axes extending perpendicular to each other and to central axes of the electrodes.
Patent CA-1080989-A (CA)
Inventor: HAMAEKERS ARNO
IPC: F16D3/70
Filed: 1978-04-19
Granted: 1980-07-08
Abstract: ABSTRACT OF THE DISCLOSURE:              An elastic coupling, for shafts, comprising a series of radial spokes, every second one of which is connected to a hub element of a drive shaft, while the remaining spokes are connected, or adapted to be connected, to a hub element on a driven shaft. The coupling also has rubber elements mounted between successive spokes, for the transfer of peripheral forces and filled with a damping medium, to be deformed resiliently when the said hub elements do not rotate in the same direction.  The coupling is characterized in that the rubber elements, mounted on each side of a spoke, have variable-volume cavities communicating with each other through aperture means, in the spokes, which offer resistance to the flow of said damping medium.
Patent CA-1089928-A (CA)
Title: Alkali metal anode/chalcogenide cathode reversible batteries having alkali metal polyaryl metallic compound electrolytes
Inventor: KLEMANN LAWRENCE P
IPC: H01M10/0568
Filed: 1978-05-02
Granted: 1980-11-18
Abstract: Reversible alkali metal anode/metal chalcogenide cathode cells, e.g. lithium batteries, are described having electrolyte compositions which consist essentially of (a) organic solvents selected from the group consisting of inertly substituted and unsubstituted ethers, esters, sulfones, organic sulfites, organic sulfates, organic nitrites and organic nitro compounds; and (b) electrolytically active alkali metal salts including polyaryl metallic alkali metal salts having the formula ZMRn wherein Z is an alkali metal, M is a metal selected from the group consisting of Zn, Cd, B, Al, Ga, In, Tl, Sn (stannous), P and As, the Rs are certain aryl radicals, and n is a numerical value equal to one plus the valence of the metal M. Rechargeable, high energy density electrochemical cells containing an anode having an alkali metal as its active material, a cathode having as its active material a transition metal chalcogenide, e.g. TiS2, and an electrolyte composition of the above-described type, are preferred.
Patent CA-1106331-A (CA)
Inventor: SAETERDAL EDGAR
IPC: F04D29/36
Filed: 1978-05-04
Granted: 1981-08-04
Abstract: ABSTRACT OF THE DISCLOSURE                     AN AXIAL FAN           In an axial fan having an impeller with settable blades and wherein the root end of each blade connects, via a bearing permit-ting rotation of the blade, to the outer end of a blade-attachment shaft extending substantially radially relative to the impeller, the blade-attachment shaft is rigidly connected at its inner end to an impeller hub.  the blade-attachment shaft is abutted against the radial outer side of the hub and is pre-tensioned by compres-sing said shaft in the longitudinal direction thereof against said hub.
Patent CA-1103542-A (CA)
Inventor: POWERS ROBERT J
IPC: F24B1/188
Filed: 1978-05-09
Granted: 1981-06-23
Abstract: FIREPLACE HEAT EXCHANGE SYSTEM   ABSTRACT OF THE DISCLOSURE A fireplace heat exchange system is disclosed which is connectable to an existing forced air heating system of a building.  The heat exchange unit includes a housing or enclosure within which is disposed a firebox. The enclosure and the firebox define a heat exchange space. The firebox includes a front opening which is closed by doors.  A plenum is positioned on top of the firebox for collecting combustion gases.  A plurality of heat exchange fins are secured to the exterior of the firebox within the heat exchange space to channel the incoming air entering the housing around and over the firebox and to increase the efficiency and rate of heat exchange.  An air control device is positioned adjacent the front of the firebox to control the amount of combustion air entering the firebox.  A chimney connects to the plenum and a chimney damper limits the combustion gas flowing out the chimney.
Patent CA-1084723-A (CA)
Title: N.p.k.   mg fertilizer and method for producing same
Inventor: SCHUMAN EDWIN K
IPC: C05G1/00
Filed: 1978-04-19
Granted: 1980-09-02
Abstract: ABSTRACT   Langbeinite (2MgSO4?K2SO4) is reacted with diammonium phosphate (NH4)2HPO4 to yield a dry (solid) farm field fertilizer of grade 21-12-7 + 1.22 Mg. The chemical process also provides for a solid or dry farm field "double cropping" fertilizer. The cost of liquid and granular fertilizers containing substan-tial amounts of magnesium has been reduced to where they are competitive with commercial N-P -K fertilizers that do have this feature. These fertilizers contain magnesium in the presence of phosphorus. The micro-nutrients Zn, Cu , Fe ,Mn , and B may be added in rates proportional to deficiency shown by field tests.
Patent CA-1109361-A (CA)
Inventor: MILLER HELMUT
IPC: F03B11/00
Filed: 1978-05-16
Granted: 1981-09-22
Abstract: ABSTRACT               Hydroelectric machine set, with an electric machine and a Francis machine, a rotating unit comprising the rotor of the electric machine and the runner of the Francis machine, and a bearing arrangement for supporting the rotating unit relatively to the foundations of the machine set; the rotating unit is supported in the peripheral region of the supporting ring of the electric machine and in the peripheral region of the Francis machine runner by means of a circle of hydrostatic radial bearings.
Patent CA-1095373-A (CA)
Inventor: SCHEGOLEV GLEB S
IPC: F03B3/18
Filed: 1978-06-01
Granted: 1981-02-10
Abstract: Abstract of the Disclosure An arrangement for and-face sealing of the guide vanes of the distributor of a hydraulic machine including a pair of rims with a plurality of guide vanes disposed therebetween comprising a plurality of seals situated in elongated grooves provided in the rims between the holes receiving the vane journals. Each seal is composite in a plane parallel to the end faces of the vane and includes an inner plate adjacent the bottom of the groove and movable in said plane, and an outer plate engaging the inner plate and movable in a plane perpendicular to the end faces of the vanes. Both the plates have contacting surfaces formed with a variable profile in longitudinal section by a plane perpendicular to the end faces of the vanes and arranged in the groove so that the smaller-sec-tion portions of one plate are adjacent the larger-section portions of the other plate. are adjacent the larger-section portions of the other plate. In order that the seals might be displaced in the groove to be urged against the end faces of the guide vanes when closing the distributor, or retract-ed from the end faces of the vanes when opening the distri-butor, profile cams are fitted on the vane journals, en-gaging the end portions of the inner plate as the vanes are rotated to close or open the distributor. The longitu-dianl movement of the inner plate is transformed into the lateral movement of the outer plate of the seal towards the end faces of the vanes or therefrom. The arrangement is compact, provides for easy installation and dismantling without the necessity of disassembly of the distributor, and ensures a reliable uniform urging of the sealing member against the end faces of the guide vanes along the entire length of the seal when the distributor is in the closed position.
Patent CA-1121027-A (CA)
Title: Fuel ignition control arrangement having a timing circuit with fast reset
Inventor: MATTHEWS RUSSELL B
IPC: F23N5/20
Filed: 1978-06-16
Granted: 1982-03-30
Abstract: Abstract of the Disclosure:      A control arrangement for a direct ignition type fuel ignition system including a timing circuit having a timing capacitor which changes in response to application of power to the system defining a trial for ignition interval during which a controlled switching device is enabled to operate a flame relay to energize a fuel valve to supply fuel to a burner for ignition by sparks provided by a spark generator, the controlled switching device being disabled, deenerigizing the flame relay when the timing capacitor becomes fully charged before the fuel is ignited, and the controlled switch-ing device being maintained enabled through the action of a flame sensing circuit which is coupled to the timing circuit only when a flame is established.  The control arrangement enables rapid discharge of the timing capacitor whenever the system is deactivated, the discharge network being normal-ly decoupled from the timing capacitor, and being coupled to the timing capacitor when power is disconnected from the reset circuit.  In one embodiment, the fuel valve is energized over a path provided by contacts of the flame relay and contacts of a checking relay, which is energized over normally closed contacts of the flame relay at the start of each operating cycle, the checking relay also enabling the timing circuit and the sparks generator.
Patent CA-1101802-A (CA)
Inventor: DEPENTI KENNETH L
IPC: B61G3/12
Filed: 1978-08-24
Granted: 1981-05-26
Abstract: A LOCKSETTING MECHANISM FOR A RIGID JAW COUPLER                 Abstract of the Disclosure A rigid jaw-type coupler having a locksetting mechanism which can be easily tripped to restore the lock from a locksetting position back to a locked position.  The mechanism comprises a lock operating lever which is provided with a projecting lug that is designed to slidably engage and override a specially contoured cam which is carried by a pawl for holding the lever and lock in a lockset position.
Patent CA-1057194-A (CA)
Inventor: MASSON PIERRE L
IPC: G01N33/48
Filed: 1978-08-31
Granted: 1979-06-26
Abstract: ABSTRACT OF DISCLOSURE          Fluid Samples such as serum are assayed for Ab:Ag complex by adding to the sample a solution of Clq as well as a material which is caused to agglutinate on contact with Clq by determin-ing the extent of agglutination or non-agglutination of the material.
Patent CA-1119014-A (CA)
Inventor: TINDALL RICHARD F
IPC: H01C7/22
Filed: 1978-09-12
Granted: 1982-03-02
Abstract: ABSTRACT OF THE DISCLOSURE   That invention relates to devices for measuring temperature; more particularly it relates to temperature sensing devices operating at high temperature.  It is an object of this invention to overcome deterioration of temperature sensitive elements and accordingly the element of the inventor comprises a substrate made from an electrically non-conducting material and carrying an electrically conducting path comprising a vitreous phase which is resistant to chemical reduction and loaded with electrically conducting particles.
Patent CA-1095822-A (CA)
Inventor: MEZZANOTTE MARIO
IPC: B60C19/00
Filed: 1978-09-22
Granted: 1981-02-17
Abstract: ABSTRACT OF THE DISCLOSURE A pneumatic tire for a motor vehicle has a tread divided into first and second annular contiguous zones or portions.  The first zone is free from annular grooves and has a substantially smooth surface with circumferentially spaced generally laterally extending short cuts or grooves inclined with respect to the circumferential line of the tire.  The elastomer in the composition forming the first zone has a second order glass transition temperature of from -10°C. to -25°C.  The second zone has laterally spaced annular grooves and transverse grooves forming a tread pattern.  The elastomeric composition of the second zone contains an elastomer having a second order glass transition temperature of -30°C. to -55°C.
Patent CA-1086180-A (CA)
Inventor: WILLIAMS ARTHUR J
IPC: F16K17/08
Filed: 1978-09-29
Granted: 1980-09-23
Abstract: ABSTRACT      A relief valve assembly particularly in combination with yieldable pit posts is provided having an elongate housing, a first load chamber at one end of said housing, an inlet aperture into said housing, a non-return valve in said inlet aperture for admitting fluid non-returnable into said load chamber, a first valve seat in said housing communicating with said load chamber, a spring loaded relief valve movable lengthwise of the housing and normally engaging said seat to close the load chamber, a second valve seat in said housing spaced lengthwise from said first valve seat and relief valve and forming therebetween a balancing load chamber, a spring loaded pilot relief valve movable lengthwise of the housing and normally engaging said second seat to close the same, and a regulated orifice means in said relief valve connecting the first load chamber is normally pressur-ized to the pressure of the load chamber.
Patent CA-1111148-A (CA)
Inventor: YATSUO TSUTOMU
IPC: H01L29/74
Filed: 1978-10-03
Granted: 1981-10-20
Abstract: ABSTRACT OF THE DISCLOSURE          In a high-voltage thyristor comprising a semi-conductor body having contiguous pnpn four layers, and opposed anode and cathode electrodes and a gate electrode provided for the semiconductor body, one of p-base and n-base regions having an impurity concentration higher than the other has an impurity concentration which is no more than 8 x 1015 atoms/cm3 in the vicinity of a junction between the one base region and an adjacent emitter region and which has a gradually decreasing gradient toward the other contiguous base region.  The one base region has a sheet resistance of 500 to 1500 ohms/?.  The realization of a high-voltage, large-diameter and large-current thyristor can be ensured.
Patent CA-1091658-A (CA)
Inventor: PAGANI MARIO
IPC: C10M/
Filed: 1978-10-17
Granted: 1980-12-16
Abstract: ABSTRACT OF THE DISCLOSURE       This invention relates to a novel base used to form a stable emulsion which used as a lubricant in the die-casting process.  The base is composed of a saturated ester and is produced by the reaction of a cellulosic ether and an oxyethylenic ester of a non-saturated fatty acid.  The base is non-toxic and produces a stable emulsion which is a good lubricant in the die-casting process.
Patent CA-1092337-A (CA)
Inventor: FERGUSON WILLIAM C
IPC: B26B13/18
Filed: 1978-12-15
Granted: 1980-12-30
Abstract: Abstract of the Disclosure A cutting tool comprising a one-piece plastic tongs having flat cutting blades disposed at the free ends thereof, the U-shaped portion of the tongs acting as a torsion spring to urge the blades into the proper cutting relationship as the legs of the tongs are moved together, the torsion spring portion being biased to urge the legs of the tongs to a normal fully open position and being loaded by distorting the U-shaped portion through relative movement of the legs from the normal fully open position to a latched position in which the cutting edges of the blades are exposed for cutting.
Patent CA-1117226-A (CA)
Inventor: STODDART HUGH F
IPC: G01T1/29
Filed: 1978-12-28
Granted: 1982-01-26
Abstract: NUCLEAR TRANSVERSE SECTIONAL    BRAIN FUNCTION IMAGER                  Abstract of the Disclosure Transverse radionuclide scan field imaging apparatus and method using a plurality of highly focused collimators in an array surrounding a scan field wherein adjacent collimators are moveable with respect to each other and the focal point of each collimator samples at least one-half of the scan field.     S P E C I F I C A T I O N
Patent CA-1094374-A (CA)
Inventor: NOWACKI ULRICH G
IPC: B31B5/80
Filed: 1979-01-11
Granted: 1981-01-27
Abstract: METHOD AND APPARATUS FOR ERECTING A CARTON                   ABSTRACT OF THE DISCLOSURE     The present invention relates to a compact high speed carton erecting and sealing machine and method employing a hori-zontal blank feeding mechanism.  Carton blanks are fed into the erecting station, positioned against a stop and vacuum erected from the trailing side panel.  The erected blank is maintained in a squared position and driven through the machine by flights mounted on parallel chain conveyors adjustably positioned adja-cent the long sides of the erected carton.  As the erected carton is driven through the machine, the trailing and leading bottom end flaps are sequentially folded into place and then the bottom side flaps are partially folded into place.  With the side flaps in 2 partially folded position, adhesive is applied to either or both the bottom end flaps and the bottom side flaps.  The partially folded side flaps are then maintained in position by a fixed anvil as the carton is delivered by the conveyor to a set of squaring stops.  A transversely moving platen then moves the carton laterally to clear the end stops while bringing the end and side flaps into sealing relationship under time and pressure conditions sufficient to effect adhesion between the side and end flaps.  Thereafter, the erected and sealed carton is ejected from the machine by the movement of the succeeding carton into the sealing station.
Patent CA-1138930-A (CA)
Inventor: REGAN JOHN F
IPC: H02M7/5383
Filed: 1979-01-15
Granted: 1983-01-04
Abstract: Abstract Of The Disclosure In a system of parallel switching regulators sharing a common load, each regulator includes means for generating controllable pulses from an unregulated d-c. voltage source and then smoothing those pulses to form a d-c. output that varies according to changes in the pulses.  A comparator controls the pulses according to the differential between a reference signal and a feedback signal, and an output resistor is connected between the comparator and the load.  A reference signal source generates a reference signal for the comparator in a first one of the regulators, and the load side of the output resistor in the first regulator is connected to the feedback signal input to the comparator in that regulator so that the load voltage is determined by the reference signal for the first regulator.  The comparator side of the output resistor in the first regulator is connected to the reference signal input to the comparator in a second one of the regulators, and the comparator side of the output resistor in the second regulator is connected to the feedback signal input to the comparator in the second regulator so that the current supplied to the load by the second regulator is equal to the current supplied by the first regulator.
Patent CA-1119880-A (CA)
Inventor: WALON RAOUL G P
IPC: A23L27/30
Filed: 1979-01-22
Granted: 1982-03-16
Abstract: ABSTRACT OF THE DISCLOSURE            Sweet, non crystallizing (at concentrations of 75% solids or above) syrups are prepared having the following saccharide compo-sition: dextrose, from 20% to 40%; levulose, from 20% to 40%; maltulose, from 10% to 60%; total ketose composition (principally levulose and maltulose), 40% to 80% (percentages by weight dry basis).  Optionally, the syrups may contain up to 25% maltose and/or up to 20% higher saccharides (i.e. having degrees of polymerization of greater than 2).  The syrups are prepared by first subjecting a starch hydrolyzate, containing at least 40% maltose and not more than 5% dextrose, to an alkaline isomerization treatment to isomerize a portion of the maltose to maltulose, the isomeri-zation being conducted until the resulting hydrolyzate contains between 10% and 60% maltulose.  The resulting product is then treated with glucoamylase to saccharify at least a portion of the remaining maltose (as well as higher saccharides, if present) to dextrose.  That hydrolyrate is finally subjected to an isomerization reaction to isomerize up to 50% of the dextrose to levulose.
Patent CA-1119931-A (CA)
Inventor: TAKIGAWA HIROYOSHI
IPC: B60C11/03
Filed: 1979-05-18
Granted: 1982-03-16
Abstract: Abstract of the Disclosure A heavy duty pneumatic tire includes a tread in a crown of a tire body reinforced by a toroidal carcass extending between a pair of annular bead cores.  The tread is formed with a pair of main wide grooves circumferentially spaced apart at least one half of a tread width of the tire on both sides of a central circumferential line and a wide subgroove extending along the central circumferential line and in parallel with the main wide grooves to form first ribs bounded by the wide subgroove and the main wide grooves and second ribs bounded by the main grooves and tread edges. Each the first rib is formed with a narrow groove circumfer-entially extending to divide the first rib into two parts. The tire according to the invention is superior in antiskid characteristic on wetted roads by improving the drainage without sacrificing the wear resistance of the tire.
Patent CA-1142258-A (CA)
Inventor: MIRAM GEORGE V
IPC: H01J1/46
Filed: 1979-07-23
Granted: 1983-03-01
Abstract: Zero-Bias Gridded Gun Abstract A gun for a linear-beam electron tube has a control grid for modulating the beam current which consists of an array of conduct-ive web elements whose spacing from each other is much larger than their spacing from the concave emissive surface of the cathode. It was found that when this condition is met, the grid can be operated at cathode potential while beam current is being drawn without distorting the electric accelerating field enough to ruin the focusing of the beam.  Thus, when the grid is  used to pulse the beam current on and off, it can have zero bias in the "on" condition, whereby the pulse modulator can be greatly simplified.