baber/WOPTO huggingface dataset:
Patent CA-1127336-A (CA)
Title: Phone guard for locking out long-distance calls
Inventor: KENNEDY AUSTIN R Q
IPC: H04M1/667
Filed: 1979-01-18
Granted: 1982-07-06
Abstract: ABSTRACT OF THE DISCLOSURE     A telephone lock for attachment to a telephone permits a user to dial local calls only with a first predetermined number of digits. Upon lifting a receiver/speaker from a cradle connected to the telephone lock, a counting device counts the first number of digits. A  ratchet wheel rotatably mounted on the lock is advanced from an initial position by a first preset angle against the action of a spring by a ratchet wheel advancement device, following dialing of one of the predetermined number of digits. A first dialing stop device restrains the user from dialing the first digit on a dialing device for reaching the operator on an initial dialing, and a second dialing devices restrains the user from dialing an additional number of digits, when the ratchet wheel has advanced from the initial position by a second preset angle.  When the receiver/speaker has been replaced on the cradle, the dialing device is reset to a starting position.
Patent CA-1116733-A (CA)
Inventor: SHEINBEIN DANIEL
IPC: H04Q3/545
Filed: 1979-02-06
Granted: 1982-01-19
Abstract: D. Sheinbein 1 INTEROFFICE CALLBACK ARRANGEMENT     Abstract of the Disclosure A telephone switching system is disclosed with facili-ties for processing interoffice callback information over a common channel interoffice signaling system (4) between program controlled call processors (21, 34) in call originating and terminating offices (1,2) upon encountering a called station busy condition.   The terminating office call processor (34) is equipped to examine the busy-idle status of the called station (5) by consulting its supervisory memory (46) and by directed called station line scanning and then to enable an automatic call retry only after it is determined that the called station has become idle.  Each of the call processors (21, 34) includes an originating register-callback register (47) for storing callback information comprising the calling and called station identities originating office identity, a callback code dialed from a calling station (3), a mark to specify the callback mode of register operation, a line recheck time delay and a time limit on the callback service.     Automatic callback is effected in one arrangement by transferring the callback information from the originating to terminating office, ascertaining when the called station becomes idle, and then making a terminating-to-originating office call in an attempt to complete call connections between the calling and called stations.          Another arrangement bypasses the terminating-to-originating office call and retransfers the callback information to the originating office for enabling it to initiate the call retry.                             -i-
Patent CA-1122249-A (CA)
Inventor: SEITZ LAMONT J
IPC: H05B3/02
Filed: 1979-02-27
Granted: 1982-04-20
Abstract: ABSTRACT OF THE DISCLOSURE     A heating unit which may be used as a soft contact lens disinfecting unit and which embodies a case construction entirely of thermoplastic, or other low heat-conductive material.  A heat conductive liquid such as molten wax, or oil, or both, is contained in the case and is used as a uniform heat transfer medium between electrical heating elements in the case and the surface of an in-cubator supported in the case which, likewise, is formed of low heat-conductive material.  The heating unit in the embodiment to be described, is specifically constructed to produce or aid in dis-infecting so-called soft contact lenses intended for wearing in contact with the eye.  The unit is more generally applicable, and may be used to advantage, when a low cost heating unit is desired which will raise the temperature of an object or a material to a given temperature, maintain it at or above the given temperature for a given time period, and then allow it to cool down and return to an ambient temperature condition.
Patent CA-1099072-A (CA)
Inventor: SCHILBE LAIRD W R R
IPC: E04B2/70
Filed: 1979-03-21
Granted: 1981-04-14
Abstract: Abstract of the Disclosure The log-type building construction in accordance with the invention includes a pair of walls which are angularly disposed relative to one another, each wall including a plurality of logs positioned one on top of the other with the walls being in interlocking relation with one another in a vertically disposed interlocked region.  The logs of one wall are in inter-leaved or interlaced relationship with the logs of the other wall along the interlock region.  In accordance with the invention the logs of each wall have an obliquely disposed mortise therein adjacent the interlock region and locking means disposed in the mortises to secure the logs of said one wall to the logs of the other wall.
Patent CA-1127784-A (CA)
Title: Wires insulated by polytetramethylene  terephthalate of reduced embrittlement
Inventor: ZINGHEIM STEVEN C
IPC: C08L23/00
Filed: 1979-04-12
Granted: 1982-07-13
Abstract: S P E C I F I C A T I O N          "WIRES INSULATED BY POLYTETRAMETHYLENE TEREPHTHALATE OF REDUCED EMBRITTLEMENT"     ABSTRACT OF THE DISCLOSURE           Wires insulated by polytetramethylene tereph-thalate (PTMT) polymers of reduced embrittlement.  PTMT polymers are subject to embrittlement, especially at elevated temperatures and when a flame retardant is incorporated therein.  This problem is substantially reduced by blending the PTMT polymer with a second polymer which has a flex modulus of 500 to 40,000 psi and a solubility parameter within ? 1.5 of the PTMT polymer, for example an ethylene/ vinyl acetate copolymer or a block copolymer containing polyether and polyester blocks.
Patent CA-1129943-A (CA)
Title: Method of sealing gas discharge  displays
Inventor: FRANKLAND ROGER A
IPC: H01J9/38
Filed: 1979-04-17
Granted: 1982-08-17
Abstract: 123D-lll Canada Abstract A process for making the final seal in a gas discharge display using a piece of low temperature glass cane which is melted to form a generally flat seal within an access hole in one of the insulating plates of the display.  The generally elongated piece of cane glass is inserted into an access hole in one of the insulating plates and after being exposed to a melting tempera-ture it fills the access hole area in the insulating plate, leav-ing no protrusions on the outside surface of the display.
Patent CA-1124112-A (CA)
Inventor: TOMISAWA NORIO
IPC: G10H7/12
Filed: 1979-06-29
Granted: 1982-05-25
Abstract: Abstract of the Disclosure A method for producing a tone waveform having a desired spectral construction by modulating an input address signal of a selected frequency for a waveform memory.  For the modulation of the input address signal, the output of the waveform memory is multiplied  by a parameter .beta. of a suitable value and the multiplication product is added to the input address signal.  If the input address varies in the manner of, for example, a saw-tooth wave, a desired tone waveform can be produced within a range between a saw-tooth wave and a sinusoidal wave by selecting a suitable value of the parameter .beta. .   More specifically, a saw-tooth wave is produced as a  tone wave form if a sufficiently large value of  .beta. is selected.  As  .beta.  is gradually decreased, the amplitude is decreased from a higher order and the amplitude also disappears from a higher order until the tone waveform becomes a sinusoidal wave when .beta. is zero.  The waveform memory having its input address modulated in the above described  manner is used not only for directly producing a desired tone waveform but for modulating an input address of another waveform memory.  In the latter case, a tone waveform is produced by the other waveform memory.
Patent CA-1123049-A (CA)
Title: Two-stage commutation circuit for an inverter
Inventor: SCORSO CLIFFORD A JR
IPC: H02M7/515
Filed: 1979-08-01
Granted: 1982-05-04
Abstract: ABSTRACT OF THE DISCLOSURE       A two-stage commutation circuit for an inverter, each having a different energy storage capability, commu-tates the main semiconductor switches by creating a commutation pulse suitable for the different levels of load current.  This improves overall inverter efficiency by decreasing the circulating commutation current at light loads due to reduced size of the commutation and makeup pulses utilized at the lower load current levels.  The control circuit for the dual commutation circuits includes a voltage detector for sensing the level of the DC input voltage and current detectors for sensing the times at which the load current is essentially zero so that the transition between the commutation circuits will occur without perturbations in the cyclic operation of the inverter.
Patent CA-1121585-A (CA)
Inventor: VOGEL JOHN D
IPC: B23B31/22
Filed: 1979-09-10
Granted: 1982-04-13
Abstract: ABSTRACT      A keyless chuck adapted to grip an object, such as a drill bit, is disclosed.  The keyless chuck includes a cylindrical body provided with an axially extending tapered?bore.  The surface of the tapered bore includes first and second cam surfaces.  A con-trol sleeve is provided surrounding at least a portion of the cy-lindrical body and is adapted for controlled axial movement rela-tive to the cylindrical body.  A retaining element is attached to the control sleeve and partially closes one end of the cylindrical body.  A thrust bearing is provided in the retaining element. Gripping elements are positioned within the tapered bore and are adapted to engage and grip the tool when the tool is inserted be-tween the gripping elements.  A thrust bearing is positioned in the retaining element which operatively engages the gripping ele-ments.  A spring retains the gripping elements in contact with the tapered bore and also with the thrust bearing wherein, upon axial movement of the cont??? sleeve relative to the cylindrical body, the gripping elements move axially within the tapered bore in con-tact with the first cam means, thereby causing radial movement of the gripping elements and wherein, upon rotation of the cylindrical body relative to the gripping elements, the gripping elements shift along the surface of the second cam and thereby also cause radial movement of the gripping elements.
Patent CA-1116881-A (CA)
Inventor: GRANDA GERALD L
IPC: F16C11/04
Filed: 1979-09-11
Granted: 1982-01-26
Abstract: CARTRIDGE-TYPE PIVOTAL PIN AND BUSHING JOINT                ABSTRACT OF THE DISCLOSURE            This improved cartridge-type pivotal pin and bushing joint comprises a cylindrical pin having a large, hollow metal cylinder concentrically disposed thereon intermediate the extremities thereof and a plurality of preloaded, spaced, dry, self-lubricated cylindrical bushings between the pin and cylinder at least adjacent the extremities of the cylinder.  Dry, self-lubricated annular thrust bearings axe concentrically mounted on the pin adjacent the extremities of the cylinder and thrust-controlling annular retainers are immovably press-fitted on the pin axially exterior to and abutting the thrust bearings so as to compressibly preload the same.  The retainers have rounded or chamfered edges to facilitate press-fitting and seal-receiving annular grooves radially outwardly of the outer radial extremity of the thrust bearings, the open end of each of the grooves being dis-posed towards the end of the cylinder.  Resilient seals are disposed in the grooves to sealingly engaged end portions of the cylinder.  The self-lubricated cylindrical bushings may be metal-backed and the retainers may be manufactured with wall portions forming a primary seal.
Patent CA-1123776-A (CA)
Inventor: ROHDE WOLFGANG
IPC: C10B57/10
Filed: 1979-09-13
Granted: 1982-05-18
Abstract: ABSTRACT OF THE DISCLOSURE       A process and an apparatus for the drying and preheat-ing of coking coal is described, in which a coarser grain frac-tion of the starting coal is separated out at least at one lo-cation in a flight stream tube through which the coal and a heat carrier gas are fed, and in which this larger grain fraction is subsequently reintroduced into the main stream containing only the finer grain fraction of the coal and the predominant portion of the heat carrier gas. The method and the apparatus through which the method may be carried out allow for a single-step pro-cess for both drying and preheating of the coal, make it possible to substantially reduce the length of the flight stream tube neces-sary, and increase the uniformity of the degree of pretreatment of the variously-sized fractions of the starting material.
Patent CA-1118338-A (CA)
Inventor: KHAMIS ANTHONY G
IPC: E21B43/18
Filed: 1979-10-22
Granted: 1982-02-16
Abstract: ABSTRACT OF THE DISCLOSURE There is provided a new and improved method and apparatus for use with submersible pumping systems. In this system, a coiled tubing is connected directly to the downhole apparatus and an unarmored power supply cable is maintained within the coiled tubing.  The coiled tubing, with the unarmored cable therein, is utilized to lower and retrieve the downhole apparatus without applying tension to the power supply cable.
Patent CA-1101255-A (CA)
Inventor: JOSEF MICHAEL J
IPC: D03D3/04
Filed: 1979-11-02
Granted: 1981-05-19
Abstract: SEAM CONSTRUCTION FOR MULTI-LAYER FELTS     ABSTRACT OF THE DISCLOSURE     The disclosure is of a seam construction for joining the ends of woven papermakers felt or dryer felts, wet felt forming fabrics characterized in part by a first system of lengthwise yarns in one layer and a second system of lengthwise yarns positioned above the first system.  The seam comprises looped ends of the lengthwise yarns projecting from the respective ends of the fabric, and positioned to interleaf with the opposite end loops.  Pins are placed through the inter-leafed loops so as to provide joinder in the two systems, respectively, of the felt or fabric.
Patent CA-1126809-A (CA)
Inventor: LECERF ANDRE
IPC: H01M4/58
Filed: 1979-11-21
Granted: 1982-06-29
Abstract: PRECIS DE LA DIVULGATION; L'invention concerne un générateur électrochi-mique comportant une matière active positive,une matière active négative et un électrolyte, la matière active positive consistant en un composé formé de deux oxydes, le premier étant de carac-tère basique et constitue par de l'oxyde cuivrique CuO, le second étant de caractère acide et constitue par de l'oxyde de bismuth Bi2O3, ledit compose étant Bi2CuO4.
Patent CA-1113806-A (CA)
Inventor: ZUBER BRETISLAV P
IPC: H01B13/02
Filed: 1979-12-19
Granted: 1981-12-08
Abstract: APPARATUS FOR STRANDING WIRE            Abstract of the Disclosure Wire stranding apparatus for giving a periodic reverse twisting operation, in which a rotationally flexible elongate member, preferably a rod, carries wire guiding elements extending radially outwardly from it.  Each element has guide holes for wires as they are passed along the rod.          Stranding is done by holding an upstream end of the rod stationary and while the wires are moved along guide paths, the downstream end of the rod is rotated for a predetermined number of revolutions about its axis alternately in one direction and then the other.  Wires are thus stranded in alternating directions.             - i -
Patent CA-1130692-A (CA)
Title: Composition suitable for use in cleaning  panes of glass
Inventor: WESTERMANN LOTHAR
IPC: C11D1/83
Filed: 1979-12-31
Granted: 1982-08-31
Abstract: COMPOSITION SUITABLE FOR USE IN CLEANING PANES OF GLASS       ABSTRACT OF THE DISCLOSURE: The invention relates to a composition suitable for use in cleaning panes of glass, consisting of a pelleted blend of surfactants, the  composition containing: a) a water-soluble alkali metal polyphosphate of high mole-cular weight with a P205-content of 60 to 70 weight %; b) at least one alkali metal carbonate or hydrogen-carbonate; c) at least one crystalline substance producing an acid reac-tion in aqueous solution; d) at least one anion-active and/or non-ionic surfactant;    and e) at least one filler, if desired or convenient.
Patent CA-1133068-A (CA)
Title: Magnetic damping system having low  induction magnet
Inventor: MACFADDEN JOHN A
IPC: G01R11/185
Filed: 1980-01-25
Granted: 1982-10-05
Abstract: 34                       48,333 ABSTRACT OF THE DISCLOSURE         A magnetic damping system for induction devices having electroconductive  disk armatures  includes  a  low induction, high coercive force magnet that is vertically elongated and has a horizontal direction of magnetization parallel  to  the  disk.   Flux  concentrating pole pieces adjoin the magnet pole faces for vertically directing two closely spaced braking magnetic fields from a pair of pole tips and into the disk.  A temperature compensating ar-rangement covers the sides of the permanent magnet between the edges of the pole pieces to efficiently compensate for higher  reversible  temperature  coefficients  of  magnet remanence.
Patent CA-1163848-A (CA)
Title: Apparatus for connecting together a plurality of webs of flexible material
Inventor: SOWDEN TERENCE D
IPC: B42B5/00
Filed: 1980-02-28
Granted: 1984-03-20
Abstract: An apparatus for connecting together a plurality of webs of flexible material comprises a base (1) having an anvil (2) with a sharp edged opening (3) therein. The opening (3) comprises a shank region (16) and an enlarged head region (17). A punching head (6) movable towards and away from the base (1) carries a punch (7) having a sharp edge and also comprising a shank region (20) and elongate head region (19) which are capable of fitting closely within the corresponding regions (16, 17) of the anvil opening. Either or both of the punch (7) and anvil opening (3) are devoid of a sharp edge adjacent that end of the respective shank region (20, 16) which is remote from the respective enlarged head region (19, 17). When two or more webs, (21,22) are placed between the punch head (6) and the anvil (2), and the punch (7) is moved into the anvil opening (3), the sharp edges of the punch (7) and the opening (3) punch a portion of material having a shank and an enlarged head from each web (21, 22) and said portion remains joined at the base of said shank to the associated web. The apparatus may be manufactured in a hand-operated version as substitute for a stapling machine or in an industrial version possibly power operated and useful for example in attaching packets to display cards. In other embodiments the invention may be used for attaching together the ends of strapping extending around loads and for connecting together sets of sheets of paper formed from continuous runs of such paper.
Patent CA-1152835-A (CA)
Inventor: GERMAN REGINALD J
IPC: A61F5/445
Filed: 1980-03-05
Granted: 1983-08-30
Abstract: ABSTRACT OF THE DISCLOSURE           A tubular percutaneous device comprising a tube formed at least in part of a material comprising carbon or carbon-like material and having a flange portion integral with and extending radially outwards of the tube from a position between the ends of the tube.
Patent CA-1146611-A (CA)
Inventor: WIKLUND KARL T E
IPC: F16L29/00
Filed: 1980-07-11
Granted: 1983-05-17
Abstract: Abstract of the Disclosure:              A hose-break valve comprises a valve housing and a sliding gate movable therealong and is connected with a pressure hose which is surrounded by a protective sleeve, while defining a space filled with a pressure medium. The sliding gate is under the action of, on the one hand, the pressure medium in said space and, on the other hand, a loading device acting opposite the pressure medium. First and second pressure relieving devices are provided for closing the valve by means of the loading device when the pressure of the pressure medium in said space respectively exceeds an upper limit value and falls short of a lower limit value.
Patent CA-1160051-A (CA)
Title: Pneumatically operated toy employing a movable  implement
Inventor: SPRING GORDEN W
IPC: A63H33/30
Filed: 1980-07-31
Granted: 1984-01-10
Abstract: TITLE:  PNEUMATICALLY OPERATED TOY EMPLOYING A         MOVABLE IMPLEMENT            ABSTRACT          An effective, relatively safe, relatively inexpensive toy can be constructed so as to utilize an air compressor to supply compressed air to move a piston within an output cylinder so as to in turn move an implement operatively connected to the piston. The piston is constructed so as to permit air to move past it in the event that the implement is for any reason reasonably restrained against movement so as to avoid possible damage to whatever is restraining the implement against movement and so as to avoid possible damage to the toy.
Patent CA-1143814-A (CA)
Inventor: CADE PHILLIP J
IPC: G08B19/00
Filed: 1980-08-08
Granted: 1983-03-29
Abstract: ABSTRACT A system condition indicator for monitoring a number of interlock switches and fuel valves to detect what event first occurs to shut down a burner control system.  The monitoring circuitry is periodically strobed once each cycle of the lower line signal and is only responsive to an abnormal in-terlock switch or fuel valve during the strobe time.  The present invention does not respond to an abnormal condition for a predetermined time after burner operation is initiated, to allow the system parameters to go to their operational values.  The present invention includes circuitry for monitoring the pilot fuel flow and the main fuel flow and for providing an indication if either flow is abnormally terminated to shut down the furnace system.  When the furnace system is shut down in response to an abnormal condition, an in-dication is provided of the first interlock switch or fuel valve to open, al-lowing a determination to be made of what caused the furnace failure, either during start-up or during normal operation.
Patent CA-1134189-A (CA)
Title: Press fabrics resistant to wad burning
Inventor: SCHIHER STANLEY C
IPC: D21F7/08
Filed: 1980-10-17
Granted: 1982-10-26
Abstract: PRESS FABRICS RESISTANT       TO WAD BURNING     Abstract of the Disclosure The disclosure is of a composite papermakers felt made up of a base layer of a textile and a surface layer of high-temperature resistant fibers coated on the surface exposed portions with a high-temperature resistant, water-insoluble, synthetic, polymeric resin.  The felt is useful in the wet press section of a papermaking machine.  The disclosure is also of a method of manufacturing the felt of the invention.
Patent CA-1142151-A (CA)
Inventor: HSU FU-TONG
IPC: B65D5/20
Filed: 1980-10-31
Granted: 1983-03-01
Abstract: 12,482 BULK MATERIAL BOX               ABSTRACT OF THE INVENTION           A storing and shipping box for bulk solid material is disclosed comprising:  a removable top and a base member; said box formed of heavy corrugated material, having eight rectangular, vertical, integral face sections positioned around the outer periphery thereof and a plurality of downwardly-depending integral flaps inwardly folded within said outer periphery to form a portion of the base of said box and providing, when infolded, an opposed pair of enveloping panels for interlocking with opposite ends of said base member; said infolded flaps and base member providing the base and alignment of said box.                 SPECIFICATION
Patent CA-1127399-A (CA)
Inventor: COX DEAN H
IPC: A01D15/04
Filed: 1980-11-25
Granted: 1982-07-13
Abstract: ROOT CROP HARVESTER                        ABSTRACT     A harvester for unearthing root crops such as potatoes or the like by passing a plow blade beneath the crop, loosening the crop and directing it upwardly to the ground surface.  The invention provides advance in the art in that it provides a compact harvester of simple design which is adapted to be mounted to a small or medium size tractor and in which the plow blade vibrates at high frequency.