baber/WOPTO huggingface dataset:
Patent CA-1141848-A (CA)
Inventor: MARHEINE EDWARD A
IPC: H04M15/34
Filed: 1980-09-26
Granted: 1983-02-22
Abstract: TITLE A BILLING INTERFACE CIRCUIT  ABSTRACT OF THE INVENTION           A billing interface circuit for controlling the billing of a station of a private branch exchange via a telephone central office.  This circuit auto-matically connects an intercept recorder to the operator requesting time and charges while providing ring back tone to the station.  Therefore, the attendant at the private branch exchange is relieved of the task of manually interfacing between the station and the telephone central office to request time and charges information for billing.
Patent CA-1139270-A (CA)
Inventor: DAVIS DEAN E
IPC: B66F9/08
Filed: 1980-11-06
Granted: 1983-01-11
Abstract: FLUID LINE COUPLING FOR FLUID ACTUATED          EXTENSIBLE STRUCTURE            ABSTRACT OF THE DISCLOSURE     A lift truck upright is disclosed as exemplary of an important application of the invention. Disclosed is a particular type of upright,  namely, a triple stage upright having a fixed upright section, two telescopic sections,  and a load carrier mounted on the inner telescopic section.  A primary lift cylinder and chain assembly is mounted from and clevatable with the inner upright section and is connected with the load carrier to elevate it with the inner section, and a secondary lift cylinder is supported from the truck and connected to elevate the telescopic sections with the primary cylinder and load carrier.  A fluid conduit is provided between the primary lift cylinder and secondary lift cylinder, a first portion of the fluid conduit having a first valve interposed therein is operatively associated with the primary lift cylinder and is selectively engageable with a second valve interposed in a second portion of the fluid conduit and operatively connected with the secondary lift cylinder. When the primary lift cylinder is retracted relative to the secondary lift cylinder, the coupling comprised by the first and second valves is in its fluid engagement position, but is not in its fluid engagement position when the primary lift cylinder is extended.  The coupling has self-centering alignment capability.  Fluid retained in the second valve is protected from contamination by an overlying cover plate when the primary lift cylinder is extended.
Patent CA-1140914-A (CA)
Inventor: THUNBERG SVANTE
IPC: F28D19/00
Filed: 1980-11-20
Granted: 1983-02-08
Abstract: APPLICANT:  Svante Thunberg TITLE.      A heat exchanger in plants for ventilating rooms or buildings.            ABSTRACT      The invention relates to a heat exchanger in plants for ventilating dwelling rooms, for example. The heat exchanger is of the recuperative type with two duct systems separated by a plurality of heat-transferring partition walls. Supply air and exhaust air are controlled by a valve means to alternate, so that the two air streams are periodically shunted between the two duct systems depending, inter alia, on the outside air temperature and the inside air temperature and humidity. By means of shunting there is avoided, inter alia, condensation and possible frost formation in the heat exchanger simulta-neously as the efficiency of the heat exchanger is improved.
Patent CA-1150966-A (CA)
Inventor: BOEHME ROLF C
IPC: G01N1/00
Filed: 1980-12-11
Granted: 1983-08-02
Abstract: ABSTRACT          A method of and apparatus for producing data useful for the statistical analysis of ore particles to establish sorting criteria, wherein the particles are moved individually by a conveyor in succession to a plurality of measuring stations.          At each station the particle is held stationary and the appropriate measurement is made.  This method enables the radioactivity of a particle to be accurately related to its mass or physical dimensions.
Patent CA-1150495-A (CA)
Inventor: HOUCK DAVID J
IPC: G01B3/12
Filed: 1980-12-18
Granted: 1983-07-26
Abstract: Case E-1 LENGTH PROBE WITH TRACING UNIT     AND SWITCH ARRANGEMENT                         Abstract Of The Disclosure A hand-held portable length probe having a length measuring wheel and a tracing unit disposed adjacent the measuring wheel, the tracing unit being slidably carried by the probe housing and acting to actuate a switch secured in fixed relation on the probe housing.  The switch is illustrated as a miniature snap action switch, actuated by the slidable tracing unit either directly or indirectly through an intermediate adjustable spring lever arm; and is also illustrated as a magnetically actuated switch in the form of a reed switch which is actuated by a permanent magnet carried by the sliding tracing unit.  The wheel is carried in a removable nose element which serves to aid in anchoring the tracing unit housing to the length probe main housing.  The switch is carried, in the illustrative examples, by a retention clip.
Patent CA-1132288-A (CA)
Title: Method for making coated molded articles
Inventor: SVOBODA GLENN R
IPC: C08J7/043
Filed: 1981-01-21
Granted: 1982-09-21
Abstract: ABSTRACT OF THE DISCLOSURE        A method for producing coated, molded, fiber-reinforced thermoset plastic articles having an adherent coating in heated matched metal molds.        The coating composition includes (A) a blocked polyisocyanate which is the reaction product, essentially free of unreacted -NCO radicals, of e-caprolactam and organic polyisocyanate;        (B) a polyepoxide-polyacrylate which is the reaction product, essentially free of unreacted epoxy radicals of a polyepoxide and acrylic or methacrylic acid;  (C) ethylenically unsaturated polyester resin;        (D) copolymerizable alpha-beta ethylenically unsaturated monomer:        (E) an initiator for addition polymerization;        (F) a catalyst for the reaction of -NCO radicals and -OH radicals;        (G) fillers, such as inert particulate fillers, pigments, mold release agents.   The coating composition is applied in the matched metal mold after a fiber-reinforced thermoset plastic article has been shaped within the mold.  The coating composition is applied by opening the mold and introducing the described coating composition, thereafter closing the mold and retaining the mold in the closed condition until the plastic article is further cured and the described coating composition is cured.
Patent CA-1157426-A (CA)
Inventor: WOLFF KURT
IPC: B07B1/50
Filed: 1981-02-19
Granted: 1983-11-22
Abstract: ABSTRACT A screen deck suitable for vibratory screening machines, comprising at least one cast, injection-moulded or vulcanised perforated panel of elastically flexible material, such as plastics material or rubber, which has a plurality of screen openings defined by dams which surround the screen openings and are integrally connected to one another to form the perforated panel.  In order to obtain a self-cleaning action in the region of each individual screen opening, at least two of the dams surrounding the individual screen openings are of dif-ferent bending stiffnesses as a result of different cross-sections and/or rein-forcements.
Patent CA-1175362-A (CA)
Inventor: ROBINSON RICHARD P
IPC: G11B3/74
Filed: 1981-03-10
Granted: 1984-10-02
Abstract: Abstract of the Disclosure A method and apparatus are described for processing audio signals in a particular manner to achieve an enhancement in the perceived sound when the processed audio signals are projected by audio transducers.  A predetermined low frequency band of the audio signals is delayed by a time period which is generally less than the refractory period of the human ear and combined with out-of-phase cross-field portions within a particular amplitude range.  A predetermined low frequency boost is applied generally of the order of about 3 db.  Several embodiments are described to provide improved recordings or enhanced acoustic projections of conventional stereo recordings.
Patent CA-1161153-A (CA)
Inventor: HAERTEN RAINER
IPC: G01S15/89
Filed: 1981-03-26
Granted: 1984-01-24
Abstract: Abstract Ultrasonic-image device with ultrasonic applicator for line-by-line ultrasonic scanning and with a device for displaying an echo perspective representation.  The aim of the invention is to produce an image device which alleviates coupling problems in any position at all of the application location; in addition application should also be possible in particular in the chest area for obtaining  subcostal sectional images.  This aim is achieved according to the invention by line-by-line scanning applicator mounted for oscillation or rotation for the purpose of oscillation or rotation of the scanning surface about an oscillating-or rotating-axis in a specific angular range, e.g. by motor drive, which on application is firmly assigned to the  respective applica-tion location.
Patent CA-1146485-A (CA)
Inventor: CUTHBERTSON BRUCE
IPC: A45C13/26
Filed: 1981-05-06
Granted: 1983-05-17
Abstract: ABSTRACT            A self-raising strap loop is described, for use with a flexible, stackable container.  The strap loop includes a strap which is flexible, and resilient means associated with the strap so that when the container is subjected to stacking forces the strap loop will lie substantially flat on the container, but when the stacking forces are removed, the loop will be forced to assume an upstanding position ready to receive a lifting device such as a fork of a fork-lift truck.          The resilient means may be a resilient plastics or metallic insert enveloped by the strap, either in the form of a flat strip or a plurality of wires.  The resilient means may also take the form of plastics or metallic wires woven into or being the warp threads of a woven strap.  The resilient means may also be an impregnating material within a woven strap to render it semi-rigid.  By using the self-raising strap loop it becomes unnecessary to pre-orient a lifting strap prior to engagement with a suitable lifting device.
Patent CA-1184681-A (CA)
Inventor: LONG JOHN R
IPC: G09G3/36
Filed: 1981-06-08
Granted: 1985-03-26
Abstract: ADDRESSING SCHEME FOR SWITCH CONTROLLED LIQUID CRYSTAL DISPLAYS          Abstract of the Disclosure In known thin film switch controlled matrix multiplexed liquid crystal displays (LCD's), alternating pulses of an applied waveform are of reverse polarity.  If the transient behaviour characteristic of the switches controlling the LCD is not saturated during application of a selection pulse, the selected pels may experience a relatively low RMS voltage in the ON state.  To ensure that selected pels are fully turned on, the addressing waveform proposed consists of a series of pulses of one polarity followed by a corresponding series of pulses of opposite polarity.  Transient effects are minimized by applying the series of unipolar pulses and the pels are consequently subjected to a high RMS voltage.  However, net DC current through the LC is still zero as required in order to guard against irreversible electrochemical degradation of the LC.          The higher RMS voltage can be used to improve contrast ratio or to increase the level of multiplexing.                - i -
Patent CA-1169255-A (CA)
Inventor: BREZA CYRIL J
IPC: F42B1/04
Filed: 1981-06-25
Granted: 1984-06-19
Abstract: ABSTRACT OF THE DISCLOSURE         Self-supporting water-bearing explosive products, e.g., for use as primers and in blasting and seismic charges, contain discrete cells of an aqueous solution of an inorganic oxidizing salt and/or of an amine salt encapsulated by a crosslinked (thermoset) resin matrix.  The products are sensitized by a dis-persed solid high explosive and/or gas bubbles or voids.  Preferred primers are sensitized by PETN and are rigid.  The products are made by crosslinking a liquid polymer in the continuous phase of an emulsion which contains the aqueous solution as a discontinuous phase.
Patent CA-1161748-A (CA)
Inventor: VANN ROY R
IPC: E21B33/12
Filed: 1981-07-02
Granted: 1984-02-07
Abstract: BALL SWITCH DEVICE AND METHOD                 ABSTRACT OF THE INVENTION         A tubing string extends downhole in a cased borehole to a jet perforating gun.  A packer device is located uphole of a releasable coupling apparatus.  The coupling apparatus has an annular piston therein which is moved to release the lower string.          Two spaced apart movable annular pistons are series connected in the tubing string at a location below the packer and above the gun.  Flow ports, formed in the tubing wall, are covered by the pistons.  A ball of appropriate diameter can be circulated down-hole and seated upon either of the pistons, thereby forcing a selected piston in a downhole direction. Circulation ports are provided below the lower piston in proximity of a gun firing head.  The lower piston includes a shaft depending axially there-from and into proximity of a detonator of the gun firing head, so that when the lower piston is forced downhole, the shaft con-tacts the firing head which detonates the shaped charges of the perforating gun.  This assembly of elements enables many differ-ent options to be exercised prior to firing the gun.
Patent CA-1162891-A (CA)
Inventor: MCKNIGHT HAROLD
IPC: B60P1/54
Filed: 1981-07-03
Granted: 1984-02-28
Abstract: "TRUCK MOUNTED HOIST" ABSTRACT OF THE DISCLOSURE          A hydraulically operated truck hoist for feed bags and the like includes a front frame detachably mount-ed on the front bumper of a truck and extending upwardly therefrom.  A hoist boom is pivoted by one end thereof to adjacent the top of the front frame and extends forwardly therefrom and is raised and lowered by a hydraulic piston and cylinder assembly extending between the boom and the frame.  A strut extends rearwardly from the top of the frame over the roof of the cab of the truck and is secured to a rear support frame, the base of which is situated on the floor of the truck body and the vertical portion of which engages against the vertical front wall of the truck body.  This rear frame may be detachably secured to the truck body and may be stabilized against sideways sway by check chains extending from the upper end of the vertical portion, downwardly and outwardly to the sides of the floor of the truck body to which they may be secured.  Stands are provided at each side of the front frame to engage the ground which, together with a stand supporting the front of the boom, supports the hoist when removed from the truck.
Patent CA-1199443-A (CA)
Inventor: HUGHES PATRICK M
IPC: C08L23/20
Filed: 1981-07-31
Granted: 1986-01-14
Abstract: COPOLYMER AND POLYPROPYLENE          Abstract of the Disclosure A heat sealable blend of a butene-1-ethylene copolymer and about 2 to 9% by weight of polypropylene can be used to form film exhibiting improved heat sealing characteristics, processa-bility, tear strength and other properties.
Patent CA-1169947-A (CA)
Inventor: JOHNSON ARTHUR W
IPC: G05D9/12
Filed: 1981-08-20
Granted: 1984-06-26
Abstract: ABSTRACT OF THE DISCLOSURE            A temperature sensitive liquid level controlling apparatus employs a pair of carbon resistors, each having a resistance which changes in response to immersion in a low temperature liquid, for determining upper and lower levels of the liquid in a container.  The resistances of the resistors are compared with those of reference resistors to provide a signal for controlling a flow of the liquid into the container.  A liquid cooling system incorporating  . this liquid level controlling apparatus displaces the liquid from a second container into the first-mentioned container by supplying a gaseous phase of the liquid into the second container, the signal being used to operate a two-way valve in the liquid passage for venting the second container through the liquid passage and for permitting the flow of the liquid from the second container through the liquid passage.
Patent CA-1178060-A (CA)
Inventor: BAKER ALAN C
IPC: C21B13/08
Filed: 1981-08-25
Granted: 1984-11-20
Abstract: Method for Achieving Low Sulfur Levels in the DRI Product from Iron Oxide Reducing Kilns Abstract A method for maintaining the sulfur level below 0.05% by weight, and preferably below 0.02% by weight, in the DRI product from the process for directly reducing ore contain-ing iron oxides in a rotary kiln using a solid carbonaceous reducing agent, fed at the materials feed end and at the discharge end of the kiln, as both fuel and reductant is disclosed, identifying the important factors in the process affecting the sulfur levels in the DRI and steps and means for properly controlling these factors.
Patent CA-1161875-A (CA)
Title: Golf ball caddie
Inventor: TIMLECK ROBERT C FAITH AVENUE
IPC: A63B47/00
Filed: 1981-08-27
Granted: 1984-02-07
Abstract: TO THE COMMISSIONER OF PATENTS         AND         TO ROBERT C. TIMLECK            This is a Golf Ball Caddie.  It carries six (6) golf balls which can be retrieved one by one at the bottom by inserting thumb and forfinger in slot at bottom.  The balls can be inserted in the top by pressing the ball with the palm of the hand on serrated lid at the top.  The GOLF BALL CADDIE can be attached to the handle of a Golf Cart.
Patent CA-1173540-A (CA)
Inventor: HOSKINSON WILLIAM R
IPC: G07F7/02
Filed: 1981-09-18
Granted: 1984-08-28
Abstract: Abstract A record operated control system is provided for use with a vending machine and a record reading/writing apparatus having a read/write head for reading and writing data on a record during relative movement between the record and the read/write head.  The control system includes a de-coding circuit coupled with the read/write head for decoding data read from the record thereby.  A data storage circuit is coupled with the decoding circuit for receiving and storing the decoded data.  A comparing circuit compares at least a portion of the stored data to predetermined data and produces a compare signal if these data compare. A data altering circuit is responsive to the compare signal for altering the stored data in accordance with the amount of credit required to vend a selected item.  An encoding circuit is coupled with the storage circuit and with the read/write head for causing writing of the altered stored data onto the record.  A vend enable circuit is responsive to the compare signal and to the altering circuit and said encoding circuit for enabling the vending of said selected item only after the altering and writing of the stored data.  A control circuit controls the sequence of operation of the control system in the fore-going sequence.
Patent CA-1186474-A (CA)
Inventor: PRYOR MICHAEL J
IPC: B22D11/04
Filed: 1981-09-28
Granted: 1985-05-07
Abstract: ABSTRACT OF THE DISCLOSURE A process and apparatus for electromagnetically containing and forming molten material into a desired thin strip shape.  At least two inductors are employed which are powered at respectively different frequencies.  The frequency of the current applied to the upstream inductor is substantially lower than the frequency applied to the downstream inductor thereby providing improved efficiency and reduced power consumption.
Patent CA-1189780-A (CA)
Inventor: LACHANCE RENE R
IPC: D04H3/08
Filed: 1981-10-20
Granted: 1985-07-02
Abstract: Abstract of the Disclosure The present invention relates to a method and apparatus for the  production  of  fibrous  insulation,  especially relatively thick fibrous insulation.   Previously some relatively thick insulation has been  produced  through  lamination  techniques  using  a plurality of insulation layers,  which possibly included  the use of a continuous fibrous  hinge  as  an  alignment  aid  during  lamination.    However, proper alignment using a continuous hinge is difficult and leaves an objectionable  bulge  of  fibrous  material.    The  present  invention eliminates the fibrous bulge of the prior art and provided a more accurate means by which to substantially accurately align the layers of fibrous insulation.  A fibrous blanket of insulation is slit by means of a notched cutting blade to provide a plurality of fibrous hinges or fibrous pillars connecting a plurality of fibrous batts whereby upon the application of an adhesive to one or more of the fibrous batts, another of the batts may be folded about the hinges onto the adhesive covered batt and laminated to form the relatively thick insulation product.
Patent CA-1173655-A (CA)
Inventor: KERFOOT DEREK G E
IPC: C22B15/00
Filed: 1981-10-30
Granted: 1984-09-04
Abstract: ABSTRACT OF THE DISCLOSURE           Magnetic and non-magnetic nickel-copper mattes and concentrates are treated by a two-stage acid pressure leach in which an initial phase of the first-stage leach is carried out under oxidizing conditions until up to 70%, preferably 60 - 70% of nickel values are extracted from the matte or concentrate, at which time the first-stage leach is continued under non-oxidizing conditions.  Copper values are converted from a basic copper sulphate formed during the oxidizing phase of the leach to a less acid-soluble form as digenite during the non-oxidizing phase of the leach such that a resulting nickel-rich leach solution has reduced copper values.  The said leach solution is suitable for purification by an atmospheric leach in which non-magnetic as well as magnetic nickel-copper mattes can be added for precipitation of dissolved copper and iron values.
Patent CA-1170903-A (CA)
Inventor: PHIPPS JACK R
IPC: F02M59/32
Filed: 1981-11-26
Granted: 1984-07-17
Abstract: Abstract:               SINGLE SOLENOID FLOATING PISTON         DISTRIBUTOR PUMP    A distributor pump type fuel injection system for a diesel engine wherein the pump is driven by the engine and the control of the timing and metering of fuel being delivered to each cylinder of the engine is controlled by a single electromagnetic solenoid device.   The control system  includes  a  distribution  head  for  distributing pulses of fuel to each cylinder, the control of the fuel to  the  cylinder,  both  metering  and  timing,  being controlled by the above-mentioned single electromagnetic control  device.   The  fuel  system includes  a metering chamber  and  a timing  chamber,  the  two  chambers  being separated by a free piston.  In the control system to be described, fuel is premetered into the metering chamber, the  quantity  of  fuel  therein being controlled by the duration of energization of the control valve during the metering portion of the cycle.  The time of injection of the premetered fuel is similarly under the control of the control valve and is initiated upon energization of the control valve.
Patent CA-1195271-A (CA)
Title: Process for reduction of nitrate and nicotine content   of tobacco by microbial treatment
Inventor: GRAVELY LAWRENCE E
IPC: A24B15/00
Filed: 1982-01-25
Granted: 1985-10-15
Abstract: Abstract A process for the reduction of the nitrate and nicotine contents  of  tobacco  by  microbial  treatment  is  disclosed wherein  tobacco  materials  are  subjected,  under  controlled conditions,  to  the  action  of a microorganism effective  to degrade   nitrates   and   alkaloids   (nicotine)   through   a biochemical reaction.  The microorganism is combined or grown in the presence of a nitrate containing compound in relatively small quantities.   Tobacco treated in accordance with this process has a reduced nitrate and nicotine content, and when incorporated into a tobacco smoking product thereby produces a mild smoke, having reduced nitrogen oxides, hydrogen cyanide and nicotine content.  However, there is no loss of desirable flavor, taste and smoking properties.
Patent CA-1154388-A (CA)
Inventor: RIEBEN STUART L
IPC: F28F11/02
Filed: 1982-02-10
Granted: 1983-09-27
Abstract: 14                  49,360 ABSTRACT OF THE DISCLOSURE The  plug  installation  apparatus  comprises  a mechanism  for  moving  an  internally  captured  expander member relative to the shell wherein it is captured there-by  expanding  the  plug  into contact with the  internal surface of a tube within which the plug is disposed.  The apparatus further comprises a sensor mechanism for deter-mining that the plug has been properly inserted in  he tube prior to expanding the plug for preventing improper expansion of the plug.  The apparatus also comprises force measuring devices for determining and verifying that the proper amount of force has been applied to the expander member.