baber/WOPTO huggingface dataset:
Patent CA-1097705-A (CA)
Inventor: LEE PETER D
IPC: G07D7/00
Filed: 1978-08-16
Granted: 1981-03-17
Abstract: Abstract of the Disclosure A  document in provided having thereon a legible code to distinguish the document from other similar documents, the code comprising an arrangement of alphanumeric characters.   Where the document is a banknote, the code may be the serial number which is unique to that banknote, and which is one of a series of such serial numbers carried on individual members of a set of such documents, and having sequential numerical values.  To enhance the security value of the serial number portion of the document and to inhibit successful forgery thereof, the alphanumeric characters are provided in reverse, or negative form.   The security value derives from the complexity and cost of the apparatus necessary to print a series of successive serial numbers in reverse, rather than positive form.   The code may correspond to a code provided else-where on the document in positive form.   Another reverse code on a different background may be provided elsewhere on the document.
Patent CA-1071377-A (CA)
Inventor: WEISS JACOB B
IPC: E04D13/072
Filed: 1978-08-18
Granted: 1980-02-12
Abstract: Weiss 1 EAVESTROUGH BRACKET     ABSTRACT OF THE DISCLOSURE             An eavestrough bracket formed of a length of stamped sheet metal which has a straight bar portion hav-ing an upwardly curved hooked portion at an outer end for engaging an upper hooked marginal edge of an eavestrough and an upstanding leg at an inner end for engaging an opposite upper marginal edge portion of the eavestrough, the leg having an opening for receiving a securing nail, a strengthening rib extending continuously from substan-tially centrally of the bar portion and upwards through the hooked portion and a trough extending continuously from substantially centrally of the bar portion and up-wardly through the upstanding leg and terminating at the hole for guiding a nail to be driven to the opening.
Patent CA-1126520-A (CA)
Title: Water injection for gas turbine  engine emission control
Inventor: CAMPBELL THOMAS C
IPC: F02C7/22
Filed: 1978-08-24
Granted: 1982-06-29
Abstract: Abstract Simplified apparatus is provided  ?    separate pipe flows of fuel and water prior to delivery to the combustor of a gas turbine engine to reduce the temperature to which pressurized air is heated by the combustion of fuel, thereby reducing nitrous o?ide emissions in the products of combustion. The separate pipe flows of fuel and water are combined in a simple T-section wherein the two flows are generally normal at their point of confluence within the T-section to produce turbulent mixing therein. It has been discovered that the mixture of fuel and water transforms into a homogeneous cream at water-to-fuel ratios slightly in excess of 0.7 for diesel fuel No. 2, and that the rate of separation is greatly reduced, thereby minimizing the var?ance in the percen-tage of fuel within the mixture between a plurality of nozzles fed from a common fuel manifold receiving the mixture.
Patent CA-1080992-A (CA)
Inventor: VILJANMAA ANTTI K
IPC: C14B1/58
Filed: 1978-09-05
Granted: 1980-07-08
Abstract: ABSTRACT OF THE DISCLOSURE            A hide stretching apparatus, in particular one for the tentering of hides for drying.  The apparatus comprises a stretching frame with a number of mutually spaced radial sliding guides.  The stretching clamps gripping the edges of the hide have been arranged to be reciprocatingly movable along the sliding guides.  The stretch-ing frame is placed upon a special hide changing table carrying under each sliding guide a clamp displacement member.  The clamps carry jaws which attach to the edge of the hide to be stretched.  The jaws are opened and closed by means of a lever turnably carried on the clamp.  The clamp displacement member has two gripping members, which can be made to engage the clamp on both sides according to commands given, for the displacing of the clamps reciprocatingly along the sliding guides.  The clamp comprises a brake engaging with the sliding guide and which with the jaws in closed position prevents the displacement of the clamp towards the centre of the stretching frame.  The lever turning the jaws into their opened and closed position pushes, when the jaws are opened, the brake against the force of a spring into a position such that the clamp is free to move in either direction, whereby the clamps can be moved into clamping position and into detachment position.
Patent CA-1110473-A (CA)
Inventor: SYGNATOR HENRY A
IPC: F16B25/04
Filed: 1978-10-11
Granted: 1981-10-13
Abstract: EXTRUDING AND TAPPING SCREW                Abstract of the disclosure A threaded fastener particularly designed for extruding and forming threads in a sheet metal material. threaded shank region and threaded, generally, conical point region are interconnected by a thread-forming and extruding region which includes a plurality of partially formed threads both in circumferential extent and depth of impression.  The thread-forming region tapers down-wardly toward the point region at an angle of about 6° to maximize the thread-forming capabilities of the screw.
Patent CA-1120623-A (CA)
Inventor: SABATINI ROMOLO
IPC: H04M1/15
Filed: 1978-11-17
Granted: 1982-03-23
Abstract: ABSTRACT   A device for supplying and withdrawing a telephone cord comprises a tubular element made of plastics material effective to be bent and/or shaped for insertion in a predetermined space of the telephone body.  A resilient telephone cord in the tubular element has one end fixedly engaged with a respective end of the tubular element and the other end projecting for a predetermined length from the other end of the tubular element to be engaged with the handset.  The tubular element is integrally formed with the base of the telephone.
Patent CA-1104623-A (CA)
Inventor: EDSTROEM SOEREN E H
IPC: F16C33/36
Filed: 1978-11-17
Granted: 1981-07-07
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention provides an antifriction bearing construction comprising inner and outer annular races, anti-friction bearing elements disposed between said races in rolling engagement therewith and serving to hold the same in positions to define an annular lubricant-receiving space, wall means in fluid-tight relation with said outer race, said wall means having inner compartments in communication with each other and in communication with said annular lubricant-receiving space, said compartments being defined, in part, by radially extending circumferentially spaced flanges, and said compartments each housing an insert which defines with an inner surface of said compartment a lubricant channel which opens towards the annular lubricant-receiving space, said inserts having a plurality of through going holes for passage of lubricant from the bearing to a lubricant reservoir.
Patent CA-1102571-A (CA)
Title: Method and apparatus for offshore operations
Inventor: BLIGHT GRAHAM J
IPC: E02B17/02
Filed: 1979-03-30
Granted: 1981-06-09
Abstract: ABSTRACT OF DISCLOSURE           Methods and apparatus for offshore operations including individually significant aspects comprising:         1.  Methods and apparatus for providing lateral force transmitting arch means  extending across a vessel passageway which is laterally bounded by upwardly projecting portions of a substructure and bounded on the top by an integrated deck:          2.  Methods and apparatus for assemblying an integrated deck with a substructure wherein there are effected horizontal and vertical shock absorbing action, motion dampening, and desired alignment; and 3.  Methods and apparatus for assemblying an integrated deck with a substructure wherein, at a relatively slower rate, an integrated deck is lowered into engagement with a substructure and, at a subsequent more rapid rate, a vessel initially support-ing the integrated deck is vertically separated therefrom.
Patent CA-1118817-A (CA)
Inventor: SAGE DAVID M
IPC: B05B3/00
Filed: 1979-04-03
Granted: 1982-02-23
Abstract: ABSTRACT OF THE DISCLOSURE      An alignment system with a variable reactance element is provided for detection of the angular alignment of two variably positionable members. The variable reactance elements form two oppositely varying impedances,  A preferred embodiment of the variable reactance element consists of a pair of inductive coils mounted on a core element which forms a flux path for each coil,the core has an integral, deflectable central member which forms a common flux path for both coils.  Air gaps within the flux path of each coil are located on either side of the central member of the core.  Another variable reactance con-sists of a first inductive coil having a fixed core element forming a partial flus path for the inductive coil and a movable core element positionable relative to the fixed core element with air gaps between the core elements.  A second inductive coil having a similar associated core element is placed opposite the movable core element from the first coil element.  A modification of the previous embodiment is disclosed wherein the fixed core elements are in part formed of spaced, elongated bars,  Another version comprises a first conductive element and a second conductive element positioned near the first conductive element to form a variable capacitor.  A third conductive plate opposite the second variable capacitor which varies oppositely to the first capacitance.  In a modi-fication of the previous embodiment the first and third elements are formed by elongated  bars.  in another version there are two spaced conductive elements mechanically linked together, a third conductive element spaced opposite the first two elements and a fourth and fifth conductive element mechanically linked to the first pair of elements so that the two oppositetly variable capacitors are formed. In a variation of the previous embodiment the four linked elements are formed ofelongated bars.  Detection circuitry utilizing comparators in one version and differential current relays in another are disclosed.
Patent CA-1085378-A (CA)
Inventor: GLASS JOSEPH M JR
IPC: E21B17/10
Filed: 1979-06-29
Granted: 1980-09-09
Abstract: Abstract of the Disclosure A stabilizer for maintaining a drill string centered during large diameter earth boring.  The stabilizer includes a ring with a continuous outer surface.  The ring is mounted to the drill string so that it rotates with the drill pipe, its outer surface being in sliding contact with the shaft wall.  The mounting system includes an inner plate carried by the drill string.  The plate has protruding tabs that mate with tabs attached to the ring.  The mating tabs support the ring and allow it to be easily uncoupled.
Patent CA-1136336-A (CA)
Inventor: SCHULZE HELMUT
IPC: C08G18/65
Filed: 1979-07-03
Granted: 1982-11-23
Abstract: ABSTRACT          "Polyurethane of trans-cyclohexane-1,4-diisocyanate"         A polyurethane obtainable by reacting cyclo-bexane-1,4-diisocyanate having a trans-isomer content of at least 90 % with a diol having a molecular weight of from 800 to 4000 and a chain-extender is disclosed.         Such polyurethanes may be distinguished by high softening temperatures, low glass transition temperatures, high absorption for low elongation, extreme hardness, high abrasion resistance, stability to light and resistance to solvents. \
Patent CA-1163749-A (CA)
Inventor: THOMAS BRIAN E
IPC: C08G18/64
Filed: 1979-06-29
Granted: 1984-03-13
Abstract: ABSTRACT         The invention relates to polymeric coatings and in particular coatings formed by reaction of an epoxy resin and a polyisocyanate where the former disadvantages of slow curing of the resins has been overcome by introducing into the epoxy resin molecule, primary hydroxyl groups which react with the isocyanate groups of the polyisocyanate much more readily and rapidly compared with the indigenous secondary hydroxyl groups.  Particularly the resin component comprises the reaction product of a diol of formula:               HO-CH2- (R)a -CH2-OH wherein R is a straight or branched chain alkylene group having at most 6, and preferably three, carbon atoms, of the cyclohexane group where a is 0 or 1.  Particularly the epoxy is selected from a preferred group of low molecular weight diglycidyl ethers of Bisphenol A and may include other components.  These compositions are particularly weather resistant.
Patent CA-1123313-A (CA)
Inventor: HINCHMAN LESLIE R
IPC: F01C9/00
Filed: 1979-10-02
Granted: 1982-05-11
Abstract: ABSTRACT OF THE DISCLOSURE A hydraulic engine having a fluid pump for pumping a fluid medium under pressure to a fluid motor connected to the pump for being actuated by the fluid medium under pressure received from the pump.  A control system regulates operation of the pump and motor so as to permit apprpiate varia -tion of speed of an output shaft of the motor.  The fluid motor is a recipro-cating motor, the piston of which is connected directly to a mechanism for translating the reciprocating motion into rotary motion, wile the recipro-cating movement of the pistons simultaneously actuates valves for sequentially directing the fluid medium under pressure to opposite ends of the piston in order to obtain a double-acting piston and cylinder operation.
Patent CA-1124449-A (CA)
Inventor: FUKUI KUNISUKE
IPC: C08F4/60
Filed: 1979-11-28
Granted: 1982-05-25
Abstract: Abstract of the Disclosure This invention relates so an improved prucess for producing crystal-line polybutene-1 having a high bulk density with a good reproducibility of quality   The process is carried out in d liquid aliphatic hydrocarbon medium in the presence of a catalyst composed of a titanium trihalide and an organo-aluminum compound.  Initially a minor portion of the butene-1 is polymerized at a low temperature to form a slurry of polymer in the medium  and then the temperature is increased so that the greater part of the butene-1 is poly-merized at a temperature which is higher but not so high that the polymer formed dissolves in the medium.   The initial polymerization is carried out at a temperature of not more than 20°C in the presence of said titanium tri-halide in an amount of not less than 50 millimoles and up to 1,000  millimoles per liter of said medium.  The further polymerization is carried out in the presence or absence of said medium at a temperature of 25°C to less than 48°C in the presence of said titanium trihalide in an amount up to one fifth that of the initial polymerization.
Patent CA-1126385-A (CA)
Title: Ultrasound needle tip localization system
Inventor: VILKOMERSON DAVID H R
IPC: A61B19/00
Filed: 1980-01-07
Granted: 1982-06-22
Abstract: Abstract Ultrasound Needle Tip Localization System A B-scan pulse echo ultrasound system produces a real time image of a body area under inquiry, and an aspiration needle is inserted directly into that area.  The needle carries a small, omni-directional ultrasound transducer, electrically connected through the needle to transponder electronics.  Incident pulses from the imaging transducer to the omni-directional transducer are sensed at the latter, and the position thereof is inserted into the image either by generation of a return signal from the needle point, or through delay logic and subsequent production of a composite.
Patent CA-1123163-A (CA)
Inventor: PAINTER DONALD S
IPC: A43D11/12
Filed: 1980-03-06
Granted: 1982-05-11
Abstract: ABSTRACT     A method of manufacturing a shoe comprises the step of dry or moist heat setting a lasted shoe upper, with or without a protective coating as necessary, by total or partial immersion in a bath of heated liquid or fluidised solid material.          The lasted shoe upper may contain a stiffener element and particularly a heel stiffener made of fibre reinforced thermoplastic or thermosetting polymeric material which becomes cured by the heat treatment.
Patent CA-1137879-A (CA)
Inventor: SCHROEDER ERNST
IPC: H03G9/02
Filed: 1980-03-13
Granted: 1982-12-21
Abstract: Abstract Disclosed is a circuit for automatic dynamic compression and/or expansion.  The circuit has an adjusting member for varying the propogation constant in a useful signal path and a further similar adjusting member for varying the propogation constant in a branch path which serves for deriving a control voltage which is applied to the control inputs of the adjusting members in the useful signal path and in the branch path.  Further the circuit has a lowpass circuit which is connected to the adjusting member located in the useful signal path.  The circuit can be changed over to a different compander characteristic when the adjusting member located in the useful signal path is connected up as a controllable highpass.  The limiting frequency is of the order of magnitude of the limiting frequency of the lowpass circuit.  The highpass can be formed by a capacitor in series with the adjusting member in the useful signal path and the highpass function for low frequencies can be limited by a resistor in parallel with the adjusting member and the capacitor.  The limiting frequency of the lowpass circuit is reduced by an additional capacitor in parallel with the capacitor already provided.  In both operation modes, the same voltage generator is used for controlling the adjusting member in the useful signal path.
Patent CA-1124351-A (CA)
Inventor: ERICSSON JAMES W
IPC: H04M1/738
Filed: 1980-03-18
Granted: 1982-05-25
Abstract: CONNECTOR            Abstract of the Disclosure A connector in accordance with the present invention comprises a dielectric enclosure having a plug receiving cavity open to the front of the enclosure, and a wall forming one wall of the cavity.  The top wall includes an interior cavity surface, a front surface, and an exterior surface.  On its front surface are a plurality of parallel first grooves extending from associated orifices to the cavity surface, and at least one second groove extending from the exterior surface to the cavity surface, forming a groove end open to the exterior surface. The second groove is for positioning a spare spring contact carried by an adapter.  Spaced flanges, projecting from the wall, define with the exterior surface an adapter-receiving channel.  The channel includes latching slots and guiding ribs for snap-mounting the adapter.  The jack also includes spring contact structures, each having a plurality of undulations in its middle section for positioning it in an assigned orifice.
Patent CA-1143770-A (CA)
Title: Vacuum circuit interrupter
Inventor: INNAMI YOSHIYUKI
IPC: H01H33/66
Filed: 1980-03-20
Granted: 1983-03-29
Abstract: ABSTRACT OF THE DISCLOSURE:         Vacuum type electric circuit interrupter compris-ing a highly evacuated envelope which includes at least one inorganic insulating cylinder connected by two metallic tubes made of magnetic material or ferromagnetic material, a pair of relatively movable contacts disposed within the envelope in a location and a device for eliminating magnetostriction of the metallic tubes.  This device comprises a magnetic flux generating member for supplying magnetic flux to the metallic tube.  The noise generated from the vacuum circuit interrupt-er is, accordingly, eliminated by means of a magnetic field applying member for applying previously the magnetic field to the metallic tube or by increasing the magnetic reluctance of the metallic tube.
Patent CA-1120277-A (CA)
Inventor: ABRAHAM FAYEZ F
IPC: A47F3/04
Filed: 1980-04-02
Granted: 1982-03-23
Abstract: SELF HEATING REFRIGERATOR     ABSTRACT OF THE DISCLOSURE           A refrigerated display case having a mechanism for impeding the formation of condensation around the frame of the opening of the display case or at the junction of a door and a case frame of the display case.  In one preferred embodiment, the ballast used in connection with the lights on commercial refrigerators and freezers are secured to the base in a manner which allows the heat generated by-the ballast to be used to raise the temperature of the case frame.  In another preferred embodiment the return conduit of the refrigeration system is employed adjacent the case frame for transferring heat from the refrigerant in the conduit to raise the temperature of the case frame as well as to increase the efficiency of the refrigeration system.  In both of these embodiments, electrical resistance wires are included to supplement the heating pro-vided by the ballast and the refrigeration system to ensure that condensation is prevented from forming on a frame or other desired portions of the case.  These electrical resistance wires are included with an adjustable temperature sensing circuit which places the wires in operative mode only when needed.
Patent CA-1135957-A (CA)
Inventor: PRICE JOHN C
IPC: C21D9/00
Filed: 1980-04-18
Granted: 1982-11-23
Abstract: FURNACE TEMPERATURE CONTROL               Abstract of the Disclosure In controlling A slab reheat furnace, the average temperature of each slab in a zone, is predicted as a function of the radiation heat source temperature in the zone, and the thermal properties, dimensions, location, velocity, and past thermal his-tory of the slabs. The predicted slab temperatures are compared with a range of desired slab temperatures and the slab requiring the greatest time to be heated to its desired temperature is identified.  The furnace is controlled in such a manner that the identified slab will be heated to the desired temperature.  Slabs likely to be overheated are identified and, if a pre-determined temperature limit is to be exceeded, the furnace is controlled to prevent further heating of the slabs.  Gas temperatures throughout the zone are pre-dicted based upon only one sensed temperature in the zone.
Patent CA-1110466-A (CA)
Title: Method and apparatus for measuring the o.sub.2 content of a gas
Inventor: DATWYLER WALTER F JR
IPC: F02D41/14
Filed: 1980-06-09
Granted: 1981-10-13
Abstract: METHOD AND APPARATUS FOR MEASURING     ABSTRACT    A method and apparatus for obtaining an electrical signal  which  is  a function of  the  O2 content of  the exhaust  gas  of  an  internal  combustion  engine.    Two resistors   (1 and 3) are exposed to the exhaust gas of an internal combustion engine.  Both resistors (1 and 3) have a resistance which varies as a function of the temperature of the exhaust gas to which it is exposed.  However, the resistance of one of the resistors (1) also varies as a function  of  the  oxygen  content  in  the  exhaust  gas. Therefore,  by  applying  a voltage  to the resistors an electrical signal can be obtained which is a function of the O2 content of the exhaust gas, with the temperature effect of the exhaust gas on the network output being minimized or eliminated.   The resistors  (1 and 3)  that form the sensing element (10) are connected in series with other  resistors  to  form  a  first  and  second  resistor network which is connected together in parallel circuit relationship.
Patent CA-1155580-A (CA)
Title: Adhesives based on maleic-type  polymers
Inventor: MORGAN ALBERT W
IPC: C08K5/49
Filed: 1980-06-10
Granted: 1983-10-18
Abstract: Abstract Adhesive compositions providing high bond strength, long shelf life, desirable flow characteris-tics and end use versatility are prepared by mixing a copolymer of olefinic monomers including maleic anhy-dride and/or derivatives thereof, plasticizer and at least one monofunctional compound which reacts with the copolymer to render it soluble in the result-ing mixture and substantially soluble in the plasti-cizer. Water based, hot melt and pressure sensitive embodiments of such compositions are included.