baber/WOPTO huggingface dataset:
Patent CA-1091940-A (CA)
Inventor: HUELLE ZBIGNIEW R
IPC: F16K31/68
Filed: 1978-10-30
Granted: 1980-12-23
Abstract: ABSTRACT OF THE DISCLOSURE       The invention related to a valve assembly for a refrigeration plant of the kind used for controlling the flow of refrigerant from the evaporator to the compressor.  The closure member for the valve unit is controlled directly or indirectly by a movable well of an expansible chamber filled with a refrigerant medium having vapour and liquid phases.  The pressure exerted by the vapour phase of the medium provides a bias in a valve opening direction which is directly related to the temperature of the liquid phase and is opposed by spring bias in the valve closing direction.  A heat transfer element such as a heating resistor in the liquid phase is heated or allowed to cool in a controlled manner by an external control unit.  A temperature responsive sensor element in the liquid phase of the medium is part of a feedback system for the control unit which allows a selected temperature to be maintained in the chamber which results in a desired constant pressure in a valve opening direction to be maintained in a chamber.  A control unit has an evaporator parameter input branch and a second input branch for the feedback temperature sensing element.  The control unit ha an output for heating the heating resistor in the expandable chamber and a summating section for varying the relative effects of the input branches on the output.
Patent CA-1116276-A (CA)
Inventor: SUSIE WILLIAM F
IPC: G01S7/40
Filed: 1978-10-31
Granted: 1982-01-12
Abstract: 47,590 DIGITALLY CONTROLLED SIGNAL SIMULATOR      ABSTRACT OF THE DISCLOSURE         A signal simulator for generating a simulated target signal useful in testing the receiver and data pro-cessing portions of radar systems is disclosed.  Input signals to the signal simulator include a multi-pulsed synchronizing signal having substantially the same duty cycle and PRF (pulse repetition frequency) as the RF output signal of the radar transmitter normally used in conjunction with the receiver, digital signals specifying the accelera-tion, the initial velocity and the initial range of the target to be simulated.  A target range calculator circuit utilizes the acceleration, initial velocity and initial range signals to calculate the range of a simulated target.          A plurality of delay circuits are sequentially initialized by the synchronizing signal to generate a trigger signal delayed from the synchronizing signal with the delay corre-sponding to the range of the simulated target.  The pulse width of each pulse of the synchronizing signal is measured and stored.  A pulse generator circuit in response to the trigger signal reads the stored values corresponding to the width of the pulses of the synchronizing signal and gener-ates a delayed synchronizing signal having the same PRF and duty cycle as the synchronizing signal with the delay cor-responding to the range of the simulated target.  The target range calculator also generates a signal which determines the amplitude and a signal which determines the frequency of the simulated target signal.  These signals are coupled as input signals to a signal synthesizer.  The output signal of the synthesizer and the delayed synchronizing signal are coupled to a signal generator to generate the simulated target signal.
Patent CA-1118209-A (CA)
Inventor: KIYONAGA KAZUO
IPC: C03B3/02
Filed: 1979-02-01
Granted: 1982-02-16
Abstract: 12,041-1 A PROCESS FOR PRODUCING GLASS      IN A ROTARY FURNACE     Abstract of the Disclosure In a process for producing molten glass  in a generally cylindrical continuously rotating chamber comprising the following steps:    (a)  feeding inorganic raw materials, including silica in major proportion,  into the chamber;    (b)  providing a flame of high intensity heat produced by the combustion of fuel with a gas containing about 50 to about 100 percent by volume oxygen and directing the flame into the chamber in such a manner that the raw materials are melted; and (c)  rotating said chamber at a sufficient speed and cooling the exterior of the chamber with a liquid coolant in such a manner that the inner surface of the chamber is coated with a layer of molten glass, the layer is solidified, and a solidified layer of glass is maintained throughout the process whereby the solidified layer essentially prevents impurities from the inner surface of the chamber from entering the melt; and (d)  withdrawing molten glass, the improvement comprising heating the silica prior to step (a) to a temperature in the range of about 500°F to about 2500°F.                  S P E C I F I C A T I O N
Patent CA-1106277-A (CA)
Inventor: WALLHAEUSSER KARL H
IPC: A61K31/155
Filed: 1979-03-01
Granted: 1981-08-04
Abstract: Abstract of the Disclosure:        A microbiocidal agent consisting of 10 to 40 parts by weight of the salt of an alkyl-diguanidine of the for-mula I       in which R is C8-C18 alkyl and m is an integer of from 2 to 6 and 10 to 40 parts by weight of a block polymer of the formula   in which a, b and c denote integers which ate chosen in such a manner that the block polymer has a molecular weight in the range of from 1,000 to 16,000 and the portion by weight of the polyoxethylene chains in the total molecule is in the range of from 10 to 90 %, the balance being water and/or a short chain, water-suluble alochol.
Patent CA-1096675-A (CA)
Inventor: EDBLOM KARL G
IPC: D21F1/02
Filed: 1979-03-20
Granted: 1981-03-03
Abstract: ABSTRACT OF THE DISCLOSURE     Stock flow alignment means for the headbox of a paper machine or the like comprises a plurality of com-posite tubes having their opposite ends mounted in apertures in two spaced apart tube plates extending in the cross machine direction.  Each composite tube includes first and second tubular elements assembled in telescoping relation to accommodate changes in length resulting from thermal expansion.  Also, each composite tube is formed with a stepwise enlargement of its cross section in the direction of flow near the telescoped ends of the tubular elements.          Flow deflector means disposed in the flow paths to the inlet ends of the composite tubes prevent fibers in the stock from collecting at the inlets.
Patent CA-1124995-A (CA)
Inventor: PADGETT CLIFFORD A
IPC: B28B21/58
Filed: 1979-05-31
Granted: 1982-06-08
Abstract: Application for Letters Patent BE IT KNOWN THAT I, CLIFFORD A. PADGETT, a citizen of the United States of America, and residing at 5269 Santee Street, Stone Mountain, County of Guinett, Georgia 30087, have invented certain new and useful improvements in CEMENT LINING OF PIPES     ABSTRACT OF THE DISCLOSURE                   A pipe lining apparatus includes a distributor head which throws cement mortar centrifugally against the interior of a pipe, a trowel which smooths the cement mortar and a liquid coating spray applicator which applies a curing control substance to the trowelled lining.  The spray applicator comprises an air atomizing device which produces a very fine coating spray and blows it onto the freshly applied mortar lining without dis-turbing the lining.  Also, in one embodiment the coating spray application is mounted to swing laterally with the trowel so as to be maintained centrally in the pipe.
Patent CA-1107044-A (CA)
Inventor: KITAMURA KOICHIRO
IPC: B23B31/26
Filed: 1979-06-20
Granted: 1981-08-18
Abstract: AUTOMATIC TOOL CHANGING DEVICE     FOR A MACHINING CENTER            Abstract of the disclosure An automatic tool changing device comprises the head of a machining center and æ drum vertically movably mounted on the outer end of the head, and rotably arranged around a center shaft which is projected from the central portion of the drum to slant down-wardly are a large number of arms each having an arbor holding portion at the forward end and formed in a predetermined position on the central back surface with an elongated groove adapted for engagement with a geneva drive pin, whereby when one of the arms is engaged with a main shaft or spindle in the head, the remaining arms are continuously arranged on each side of the engaged arm above a position spaced by a predetermined angle therefrom. Disposed on the back side of the arm engaged with the main shaft and the adjacent arms on both sides thereof is a pair of genevas each having the arm moving drive pin selectively engageable with the elongated groove of the adjacent pair of arms, and every rota-tion or every plurality of rotations of the genevas in the counter clockwise or clockwise direction moves the arms each by an amount corresponding to one arm or a plurality of the arms.
Patent CA-1119628-A (CA)
Title: Device for facilitating separation  of sheet groups
Inventor: PFAFFLE ERNST
IPC: B65H3/32
Filed: 1979-07-17
Granted: 1982-03-09
Abstract: ABSTRACT OF THE DISCLOSURE              A device for use in conjunction with a sheet group separator of the type having a rotating slotted disk supporting a stack, together with a depressor for the lowermost group, and a finger for separating a corner of said group from the stack.          The device comprises a vertically slidable weight at said stack corner so that a constant downward pressure is exerted to prevent upward curling of the corner which might reduce the effectiveness of the finger and depressor movements.  A counterweighted pressure bar is pivotally mounted at the lower end of the weight so that placing additional sheets on the stack will not interfere with the operation.  The weight is reset by pulling upwardly on a handle so that the pressure bar swings away to clear the new sheets and is swung back into position by the counterweight.
Patent CA-1147374-A (CA)
Inventor: RAQUET ERWIN
IPC: F16F7/104
Filed: 1979-08-09
Granted: 1983-05-31
Abstract: ABSTRACT A resonance absorber for rail wheels comprises a spring tensile tongue clamped at one end to a base plate. The tongue is supported over only part of its length by an intermediate layer of damping material, and an additional mass is mounted on the free end of the tongue.   The absorber can damp the basic frequency and the first harmonic frequency and can be tuned to dampen the fre-quencies which cause screeching noises when the wheel runs in curved tracks.
Patent CA-1120461-A (CA)
Inventor: CRANTON GEORGE E
IPC: C10M101/00
Filed: 1979-08-10
Granted: 1982-03-23
Abstract: (U.S. 972,740) ABSTRACT OF THE DISCLOSURE            Mineral oil compositions having improved oxidation stability are provided by compositions comprising a major amount of a paraffinic mineral oil basestock and a selected amount of a branched, multiring cycloparaffinic component which is substantially made up of cycloparaffins having up to 7 rings and an average number of from about 3 to about 8 alkyl branches.
Patent CA-1127269-A (CA)
Title: Vehicular spreader with digital electronic ground speed link
Inventor: LEIGH THEODORE M
IPC: A01M7/00
Filed: 1979-08-14
Granted: 1982-07-06
Abstract: VEHICULAR SPREADER WITH DIGITAL   ELECTRONIC GROUND SPEED LINK                 Abstract of the Disclosure In a system for spreading material from a vehicle, the ground speed of the vehicle is sensed by a low torque transducer which generates a train of electrical pulses or digital signal having a repetition rate representative of the vehicle's ground speed.  The digital signal energizes a stepper motor.  The shaft of the stepper motor is coupled to a mechanical comparator which is also responsive to the speed of a conveyor, which delivers the material to be spread, for controlling the conveyor drive motor so that the speed of the conveyor tracks the ground speed of the vehicle even at very low speeds.  Proportioning of the ground speed signals is accomplished electronically by a digital counter circuit.          Override of the ground speed control signal is actuated by the operator.  The override may require continued operator actuation; or the override, once actuated may last for a predetermined time or a predetermined distance travelled by the vehicle.  In the latter two cases, the time and distance may be adjusted.
Patent CA-1131354-A (CA)
Inventor: HUNT BRIAN K
IPC: G11B27/13
Filed: 1979-11-09
Granted: 1982-09-07
Abstract: ABSTRACT OF THE DISCLOSURE     A method and apparatus is provided enabling sound editing for videotape to be carried out using procedures substantially identical to those conventionally used when the picture carrying medium is photographic film.  Editing is carried out using a mechanical synchronizer, the tape drive of a videotape playback apparatus being slaved to the synchronizer shaft using control signals generated by comparing codes, updated in accordance with cumulative movements of the shaft, with codes recorded on the videotape to identify successive frames of picture information thereon.
Patent CA-1137104-A (CA)
Title: Carbonylation process
Inventor: HALLGREN JOHN E
IPC: C07C68/00
Filed: 1979-12-14
Granted: 1982-12-07
Abstract: RD-10,733 ABSTRACT OF THE DISCLOSURE           A carbonylation process which comprises contacting a .beta.-fluoralkanol with carbon monoxide and a Group VIIIB element selected from ruthenium, rhodium, palladium, osmium, iridium,or platinum having an oxidation state greater than zero.  The resulting .beta.-fluoroaliphatic carbonates can be employed in combination with alkanols and/or phenols to prepare aliphatic and aromatic mono-and polycarbonates.  The resulting carbonates are useful in a wide variety of applications, especially polycarbonates which can be molded or formed into films, sheets, fibers, laminates, or reinforced plastics by conventional techniques.
Patent CA-1087226-A (CA)
Inventor: BILLER BRUCE A
IPC: H01H85/22
Filed: 1979-12-17
Granted: 1980-10-07
Abstract: CONTACT ASSEMBLY FOR HIGH VOLTAGE FUSE AND METHOD OF ASSEMBLY THEREOF ABSTRACT: In a high voltage expulsion type fuse, a fusible element is connected between an arcing rod and a contact element. The arcing rod is biased for movement by a spring, and when the fuse is assembled, the contact element is pulled through the fuse compress-ing the spring until the contact element is pulled par-tially through an opening in a contact bridge which is threaded into the metal exhaust ferrule of the fuse. Once the contact element is in the correct position, the bridge is swaged to attach the element to the bridge. The element has tapered grooves at the end that is inserted into the bridge so that when the bridge is swaged, the tapered grooves tend to force the contact element further into the opening so that a shoulder on the element remains firmly against the bridge. A threaded member attached to the end of the element may be engaged to pull the element through the bridge. After the bridge has been swaged, the thread member is broken off since it is no longer needed.
Patent CA-1083027-A (CA)
Title: Apparatus for manufacturing heat insulating material
Inventor: METCALFE PAUL E
IPC: D04H1/62
Filed: 1979-12-18
Granted: 1980-08-05
Abstract: ABSTRACT OF THE DISCLOSURE           Apparatus for manufacturing a heat insulating material from an uncured, strip-shaped felt of fibres containing a heat hardenable bonding substance firstly forms corrugations extend-ing across the entire width of the uncured felt and following one another in succession along the length of the felt.  The corru-gated felt is then cured as a cured felt containing fibres ex-tending in a serpentine array along the felt, and conveyed along a path of travel extending past a cutter having a cutting blade extending transversely across the path, whereby the felt is cut longitudinally into two partial felts, the corrugations being severed so that the fibres form U-shaped arrays disposed in succession along each of the partial felts.  This fibre array provides compressive strength combined with flexibility, enabling the insulating material to be used on various pipe sizes.
Patent CA-1125345-A (CA)
Title: Convertible table structure for sewing  machines
Inventor: ROBERTS KENT S
IPC: A47B29/00
Filed: 1980-01-03
Granted: 1982-06-08
Abstract: ABSTRACT   A convertible table structure, providing a planar table top adapted, among other things, to support an open-arm or portable type of sewing machine, includes an apertured platform providing the table top and having a platform section fitting the aperture and adapted to mount the sewing machine so it can be lowered to a position wherein its working surface is coplanar with the work top of the platform proper. Link means, such as parallel motion mechanism, attaches the platform section to the platform proper, and means, such as a specially shaped lever rod, is provided for moving the platform section between its coplanar position and a lowered position, as well as for locking the platform section in its coplanar position. Other means are provided for holding such platform section in a selected lowered position. Legs or other suitable structure, such as a cabinet, supports the platform at a convenient working level.
Patent CA-1156125-A (CA)
Inventor: FRANZ NORMAN C
IPC: F16K21/02
Filed: 1980-02-13
Granted: 1983-11-01
Abstract: ABSTRACT OF THE DISCLOSURE        A novel system for metering a relatively viscous fluid into a less viscous fluid using a centrifugal pump is described.  In particular, a novel valve for use in the system including a fluid pressure responsive means to actuate a needle valve which is slidable into an orifice for  control or metering of the viscous fluid is described.  The valve meters decreasing small amounts of the viscous fluid in direct relation to the increased pressure developed at the delivery end of the centrifugal pump because of the selection of the angle of the point of the needle and its relationship to the orifice.  The system is particularly adapted to metering viscous polymer containing fluids, including microdispersions of polymers as solutions or true solutions into water in very small amounts thereby reducing friction and increasing fluid flow in delivery conduits such as fire hoses and the like.
Patent CA-1115318-A (CA)
Inventor: BERENSON ALLEN V
IPC: G05D23/275
Filed: 1980-03-05
Granted: 1981-12-29
Abstract: Abstract of the Disclosure In an electric bedcover of a type wherein a safety thermostat having a bimetallic element is adapted to deenergize a heater when the bimetallic element is heated sufficiently, as when an overheated condition obtains, an elongated flexible sensor of a type com-prising a pair of conductors spaced from each other by a layer of material having a negative temperature co-efficient of resistance is adapted to influence the bimetallic element through a resistor, which is mounted for heat dissipation to the bimetallic element, and a first circuit branch comprising the resistor, the con-ductors, and the layer between the conductors, in series with each other, is connected so as to maintain the con-ductors at different potentials when the heater operates, and so as to conduct sufficient current to cause said resistor to conduct sufficient heat to cause said bi-metallic element to open said contacts when some part of the layer between the conductors is heated so as to act as an electrical conductor having a low impedance rather than as an electrical insulator having a high impedance.  Both such circuit branches are confined by a network of serpentine passages within a fabric shell of the electric blanket.
Patent CA-1141679-A (CA)
Inventor: VAILLANCOURT VINCENT L
IPC: B01D35/00
Filed: 1980-03-24
Granted: 1983-02-22
Abstract: VENTED FLEXIBLE FILTRATION DEVICE FOR USE    IN  ADMINISTERING PARENTERAL LIQUIDS    ABSTRACT OF THE DISCLOSURE   A vented filtration device comprising a closed, flexible and compressible housing having a liquid inlet and a liquid outlet.  The housing includes an internal passage connecting the inlet and the outlet.  A liquid filter assembly is disposed within the passage between the inlet and outlet thereby defining an upstream pressure section between the inlet and the filter and a downstream pressure section between the filter and the outlet. This assembly includes a flexible, porous bacteria re-tentive filter membrane, a flexible, porous support material overlying one surface of the filter membrane and a frame having at least one large central opening overlying the opposite surface of the filter membrane.  A gas vent located in the housing communicating with the upstream pressure section of the passage is adapted to allow gas but not liquid to pass from the upstream section out of the housing.
Patent CA-1130238-A (CA)
Inventor: SIMON JOSEPH A
IPC: B21K1/26
Filed: 1980-03-27
Granted: 1982-08-24
Abstract: PROCESS FOR FORMING SEMI-FLOAT AXLE TUBES AND THE LIKE                                 ABSTRACT   A process for cold forming semi-float axle tubes and similar types of metal tubes which includes arranging a short, tubular blank within an open ended die having an extrusion die throat, and pushing the blank through the die throat with a punch. The punch is provided with a ram portion, for applying pressure to the blank for moving it axially, and also an extension formed in several sections of successively smaller diameter which act as mandrels for sizing the tube interior walls. As the punch pushes the tube axially through the throat, initially a middle size extension is arranged within the throat to extrude a thickened leading edge portion on the blank. Further movement of the die results in a larger extension section traveling through the throat for extruding a thin wall tubular section of considerable length, leaving a small unextruded portion of the blank still within the die. At that point, the punch is removed and a second blank is inserted within the die. The punch is repositioned and presses the second blank against the unextruded portion of the first blank for continuing the extrusion thereof. Because of the spacing provided by the second blank, a smaller, end extension section is positioned within the throat for a short time for extruding a substantially enlarged inwardly extending ring portion on the partially extruded blank, followed by a thickened trailing end portion formed by the middle sized extension traveling through the die throat. While the trailing end thickened portion of the blank is formed, simultaneously the lead thickened end portion of the second blank is also formed. The cycle is repeated with successive blanks. The inwardly thickened lead end portion of each extruded tube is flared or flowed outwardly later, to form a generally bell-like enlarged end portion which is integral with the remainder of the tube, and of a wall thickness corresponding to the thickness of the trailing end thickened portion.
Patent CA-1149709-A (CA)
Inventor: NELSON GARY L
IPC: H01F10/24
Filed: 1980-05-12
Granted: 1983-07-12
Abstract: ABSTRACT         MAGNETO-OPTIC Bi1 Lu2 Fe5O12 CRYSTALS           A mixture and method are disclosed for growing bismuth lutetium iron garnet crystals via liquid phase epitaxy on a gadolinium gallium garnet (GGG) substrate wherein the crystals exhibit a relatively high Faraday rotation and an improved optical absorption.
Patent CA-1149558-A (CA)
Inventor: CITRONE ANTHONY M
IPC: C11D3/395
Filed: 1980-05-16
Granted: 1983-07-12
Abstract: ABSTRACT      The invention provides a thickened bleach composition including an aqueous solution of alkali metal hypochlorite, and a thickening amount of a surfactant blend comprising:-(a) an amine oxide of formula:-       , wherein R1 is an optionally branched chain alkyl group containing 10 to 18 carbon atoms;  R2 is a lower alkyl group containing up to 3 carbon atoms, and  (b) an alkali metal alkyl sulphate of formula:-R3-O-SO3M, wherein R3 is an optionally branched chain alkyl group containing 8 to 12 carbon atoms and M is lithium,sodium or potassium. The proposed composition affords a measure of control over the physical properties of the composition, including the Cloud Point, to assist the composition in maintaining its desired cleansing properties even after prolonged storage.