baber/WOPTO huggingface dataset:
Patent CA-1049914-A (CA)
Inventor: LOCHER HERMANN
IPC: A47C3/34
Filed: 1976-11-29
Granted: 1979-03-06
Abstract: ABSTRACT         An adjustable height chair in which a height adjustment tube slides in a vertical cylindrical post.  The post is provided with a plurality of spaced annular grooves and the tube is provided with a plurality of radially extending bores each containing a detent ball. A piston is provided to releasably lock the balls in the bores in engage-ment with a desired groove.  Upon movement of the piston, the balls are released and slide under gravity towards the centre of the tube until they abut a collar on the piston.  The bores slope diagonally downward from the periphery to facilitate the movement under gravity and to effect diametrically directed load transfer from the tube to the groove in the post.
Patent CA-1046924-A (CA)
Inventor: VOLLERIN BERNARD
IPC: F02C9/16
Filed: 1976-12-14
Granted: 1979-01-23
Abstract: ABSTRACT OF THE DISCLOSURE       A liquid or gaseous (fluid) comestible is mixed with a combustion-sustaining gas and fed under pressure into a chamber where the mixture is burned.  The mass flow of the combustible (fuel) is normally maintained constant for a combustion chamber of given thermal power output.  The pressure in  the chamber is continuously detected and the ration of the mass flow of re-circulated exhaust gas to the mass flow of the oxygen-containing gas (air or oxygen), which together constitute the combustion--sustaining gas, is increased when this pressure increases above a predetermined limit and the ration id decreased when the pressure decreases below a predetermined limit.  The ration is varied by increasing or decreasing the proportion of exhaust gases and thereby decreasing or increasing, respectively, the partial pressure of oxygen in this combustion-sustaining gas.
Patent CA-1081511-A (CA)
Inventor: VAN ROSMALEN GERARD E
IPC: G11B7/09
Filed: 1977-01-12
Granted: 1980-07-15
Abstract: ABSTRACT:             An automatic optical focussing system suitable for a video disc player comprises an optical focussing device with an objective which is moved to and fro at high frequency in the direction of its optical axis by electrodynamic drive means.          The resultant high frequency component thus super-imposed on the signal which has been modulated by the information track of the video disc is employed for automatic control of the position of the objec-tive.  For the sake of low power consumption the objective is connected to an oscillation compensation element by means of at least one resilient element, for example a circular plate which compensation element is axially movable relative thereto and, together with the objective and the resilient element, constitutes a mechanical resonant  system.  On the resonant system a piezo-electric acceleration transducer may be mounted with the aid of which the mechanical resonant system can be included in a self-oscillating loop.
Patent CA-1057503-A (CA)
Inventor: THOMPSON ARNOLD M
IPC: A63C11/14
Filed: 1977-02-14
Granted: 1979-07-03
Abstract: ABSTRACT OF THE DISCLOSURE      A tool adapted for renovating or conditioning skis by sharpening the bottom and side surfaces thereof and including an elongated body having a pair of spaced apart shaving strips extending in parallelism along its underneath side and a pair of depending shaving blocks near its opposite ends, the blocks being spaced apart a distance slightly greater than the maximum width of any ski to be renovated by proper use of the tool.  A handle is secured to and arches over the upper side of the body so that by first grasping the handle, they manipulate the tool so as to cause the shaving strips to bear transversely across the ski bottom in overhanging fashion and the shaving blocks to straddle the sides of the ski, then applying unidirectional torque to the body in either direction so as to bring the shaving blocks into contact with the usual metal insert-like runners at the juncture regions between the bottom and side surfaces of the ski, and finally moving the tool back and forth lengthwise of the ski, both the bottom and outer side surfaces of the ski runners are worked upon while, at the same time, the flat bottom working surface of the ski is scraped to a condition of flatness. In a preferred form of the tool, the depending shaving blocks are freely rotatable and have spaced apart shaving edges that automatically seat against the outer side surfaces of the metal ski runners of the ski being renovated so that during either the forward or reverse stroke of the tool the trailing edges are properly maintained against gouging.
Patent CA-1069159-A (CA)
Inventor: LIPPERTS JOSEPH H F G
IPC: H01H33/66
Filed: 1977-02-21
Granted: 1980-01-01
Abstract: ABSTRACT OF THE DISCLOSURE           A vacuum switch with reduced interfering fields in the contact gap has an evacuated cylindrical envelope containing two contacts which make electrical contact in the closed con-dition of the switch and are separated by an electrically insulating gap in the open condition of the switch, the gap being symmetrically disposed with respect to the central axis of the cylindrical envelope.  An electro-magnetic coil is disposed coaxially around the envelope and connected in series with the contact elements when the switch is closed producing an axial magnetic field in the region of current passage between the contact elements.  One end of the coil is connected to a first conducting joining ring connected to an electrically conducting cylindrical envelope coaxially surrounding the coil and the other end is connected to a second conducting joining ring connected to a conducting disc in a central bore of which a central conductor is mounted carrying one of the contacts. One end of the cylindrical envelope extends beyond the second ring and is connected to a disc-shaped conducting base, in a central bore of which a further central conductor is mounted carrying the other contact insulating material being provided between the electro-magnetic coil, the second joining ring and the envelope as well as between the conducting disc and the disc-shaped base.
Patent CA-1090433-A (CA)
Inventor: AMADA NOBUTAKA
IPC: H03F3/18
Filed: 1977-03-18
Granted: 1980-11-25
Abstract: AUDIO-FREQUENCY POWER AMPLIFIERS     ABSTRACT OF THE DISCLOSURE           An audio- or low-frequency power amplifier comprises a pair of output transistors which are opposite in a conduction type to each other and con-nected in a complementary push-pull circuit configura-tion in which an impedance element is connected between the bases of the paired output transistors whose bases are adapted to be applied with an input signal while the output signal of the amplifier is derived from the coupled emitters of the output transistors.  The amplifier further includes a current stabilizer tran-sistor having a base-emitter junction across which a fixed bias voltage is applied and a collector, the current from which is supplied to the impedance element thereby to provide a bias voltage for the paired output transistors.  A first resistor is connected between the emitter of the current stabilizer transistor and one electrode or pole of a first d.c. power source while a second resistor is connected between the emitter of the current stabilizer tran-sistor and the other pole of the d.c. source, thereby to maintain constant the bias voltages applied to the paired output transistors.
Patent CA-1076660-A (CA)
Inventor: HORWITT LAURENCE G
IPC: F23Q7/00
Filed: 1977-03-18
Granted: 1980-04-29
Abstract: ABSTRACT      An electrical igniting unit for cigar lighters, engine ignitor plugs, and the like comprising a spiral wound heating coil of resistance ribbon which is carried in a shallow metal cup to span the mouth thereof.  The inner end of the ribbon is secured to a metal stud as by crimping and/or welding it in a slotted head thereof.  The outer coil convolution is secured to the rim of the cup by forming inward the rim edge into a tight curl which is laid over on the end portion of the coil convolution.  A relatively large area of the coil end is thus tightly and securely pinched under continual pressure, to establish a low-resistance effective mechanical and electrical connection between the cup and the coil.  The metal cup is made of steel, and in order to solve the prob-lems of destructive cracking of the cup wall or peeling of plating, as well as rusting and pitting of the wall where it engages the cooperable electrical contacts, the cups are mass heat treated by a low-temperature nitriding process which causes a shallow penetration of from .0002" to roughly .0006". The advantage of the present invention is that such nitriding does not impair the ability of the cup wall to be inwardly curled without destructive cracking while at the same time it provides a protective coating which is resistant to abrasion, corrosion and the like, although still retaining satisfactory electrical conducting characteristics.
Patent CA-1085096-A (CA)
Inventor: SHIOMURA TETSUNOSUKE
IPC: C08F297/08
Filed: 1977-03-23
Granted: 1980-09-02
Abstract: ABSTRACT OF THE DISCLOSURE:            In producing a low density polyethylene by copolymerization in slurry state of ethylene and an .alpha.-olefin with use of a catalyst consisting of a supported titanium component and an organoaluminum compound, a certain amount of ethylene is subject to pre-polymerization in the presence of said catalyst prior to the copolymerization. Successively, the copolymerization of ethylene and an .alpha.-olefin is effected in a two-step process, in which a copolymerization ratio of .alpha.-olefin to ethylene is kept at a low level in the first step and raised to a high level in the second step thereby to obtain a low density polyethylene having a density of not higher than 0.943 g/cm3.
Patent CA-1083568-A (CA)
Inventor: MILLION WILLIAM A
IPC: A61K31/7034
Filed: 1977-04-13
Granted: 1980-08-12
Abstract: ABSTRACT OF THE DISCLOSURE           A process for preparing 1-N-substituted kanamycin A or B derivatives which comprises acylation or alkylation of selectively N-protected intermediate compounds and a process for preparing the novel selectively N-protected intermediate compounds.
Patent CA-1088827-A (CA)
Inventor: KAPLOW ROY
IPC: F24S23/71
Filed: 1977-05-25
Granted: 1980-11-04
Abstract: ABSTRACT OF THE DISCLOSURE     The invention contemplates improved apparatus for collecting solar radiation and directionally concentrating the same upon utilization means such as a  photovoltaic cell system.  In the form described, arrayed collecting devices are mounted for individual tracking of maximum solar-energy response at each such cell system, utilizing time-shared access to a microprocessor, and correctional-drive signals uniquely appropriate to the orientation of each collecting device are supplied by the microprocessor on a time-shared basis for the respective components of orientation correction drive means for each collecting device.  Since each collecting device is thus automatically correctively positioned for maximum output of its  own utilization device, there is an avoidance of precision requirements (a) as to mounting the several collecting devices with respect to each other and (b) as to basic drives to anticipate relative aspect of the sun, as a function of the time of day, or the day of the year, and whatever the earthbound location of the apparatus. .
Patent CA-1051812-A (CA)
Inventor: MAROSAN JOSEF
IPC: B29D30/08
Filed: 1977-06-03
Granted: 1979-04-03
Abstract: Abstract of the Disclosure Material-handling  apparatus is illustrated in a tire-recapping plant where tires of various sizes are auto-matically fed to a cluster of recapping machines by a feed conveyor in proper sequence for loading each machine with a tire of the proper type and size.  The tire is automatically centered for engagement by the gripping arms of a transfer apparatus  which transfers the tire from the feed conveyor to the proper recapping machine.  At the completion of the recapping operation in each machine, the recapped tire is picked up by the transfer mechanism and is deposited on the discharge conveyor, and the transfer mechanism then automatically reloads the machine with a tire of the proper size and type which is centered on the feed conveyor.  The machine is controlled automatically to eliminate manual handling of the tires in the immediate vicinity of the recapping machine.
Patent CA-1059016-A (CA)
Inventor: FERRELL WESLEY
IPC: B60C9/22
Filed: 1977-06-10
Granted: 1979-07-24
Abstract: Abstract of the Disclosure A breaker reinforcing tape for belted pneumatic tires, a method of making such tape, and a method or constructing such tires therewith, are disclosed.  The tape includes a generally sinusoidally crimped strip of uncured rubber and a plurality of similarly crimped parallel cords having their undulations following and nesting in the undulations of the crimped strip, the cords at successive apexes being secured to successive apexes of the strip.  A second uncured rubber strip in a flat condition is secured to alternate ones of the apexes of the undulations of the array of cords and the crimped strip at one race of the latter.  At least one frangible element is interposed in a fixed and substantially flat condition between the crimped and flat strips fro releasably reinforcing and stabilizing the flat strip against inadvertent expansion that would prematurely reduce the amplitude and frequency of the undulations of the crimped strip and its associated cords.  The tape, when used in making a tire, is wound helically about the crown region of the carcass, out-wardly of the breaker plies, at an angle of substantially zero degrees to the mid circumferential plane or the carcass.  This abstract is not to be taken either as a complete exposition or as a limitation of the present invention, however, the full nature and extent of the invention being discernible only by reference to and from the entire disclosure.
Patent CA-1090142-A (CA)
Title: Methods and apparatus for the production of mg and ca  by carbon reduction
Inventor: HORI FUMIO
IPC: C22B26/22
Filed: 1977-08-15
Granted: 1980-11-25
Abstract: Abstract of the Disclosure The invention provides a method and apparatus for the production of Mg or Ca by the carbon reduction of their oxides.          In the method, Mg (or Ca) vapour and CO forming a mixed gas produced by the carbon reduction are kept at a temperature which does not allow the reaction thereof to form MgO (or CaO) and C.   The mixed gas is passed through a divergent nozzle operated under the condition of underexpansion.   The gas is thus allowed to expand adiabatically at a speed exceeding the molecular motion speeds of the constituent gases, thereby causing the mixed gas to cool down instantaneously to a tem-perature at which the constituent gases cannot react with each other.   The Mg (or Ca) is then separated from the CO and collected
Patent CA-1084518-A (CA)
Inventor: KROENKE WILLIAM J
IPC: C08L33/02
Filed: 1977-08-25
Granted: 1980-08-26
Abstract: ABSTRACT OF THE DISCLOSURE           Amine molybdates retard smoke formation effectively when vinyl chloride and vinylidene chloride polymers burn.
Patent CA-1044118-A (CA)
Inventor: MCMILLAN WILLIAM D
IPC: F16H61/46
Filed: 1977-10-03
Granted: 1978-12-12
Abstract: A hydraulic system for controlling the displacement of a plurality of variable displacement pumps driven by a single prime mover including a source of pilot fluid under pressure including a fixed displacement pump adapted to be driven by the prime mover proportional to the speed thereof, a double-piloted, underspeed valve having an inlet and an outlet, the outlet being adapted to be connected to the variable displacement pumps for controlling displacement thereof, a conduit connecting one of the pilots to the source, an additional conduit, including a flow restricting device, connecting the other of the pilots to the source, and a summing valve having ports adapted to be connected to respective ones of the pumps, a port connected to the second conduit and a port connected to the inlet of the underspeed valve.
Patent CA-1118106-A (CA)
Inventor: HOPKINSON DENNIS
IPC: G07C9/00
Filed: 1977-11-14
Granted: 1982-02-09
Abstract: ABSTRACT OF THE DISCLOSURE           Access control system in which a magnetically coded key or card in inserted into a reader which reads the recorded code.  The key is coded by small permanent magnets embedded in non-magnetic body of key at positions on a 4 x 4 regular grid of possible positions.  The reader includes row of 4 Hall Effect sensors adjacent keyway entrance so that the 4 rows of magnet positions pass successively across them.          Signals generated in sensors are transmitted to signal storage units and extracted from the storage units on withdrawal of the key.  Activation of sensors and transmission of signals is controlled by successive interruption by leading edge of key of light beams along the keyway.
Patent CA-1115340-A (CA)
Title: Pulse circuit for gaseous discharge lamps
Inventor: NEAL WAYNE R
IPC: H05B41/30
Filed: 1977-11-18
Granted: 1981-12-29
Abstract: ABSTRACT OF THE DISCLOSURE      Circuit operating from a direct current source applies DC pulses to a high pressure sodium vapor lamp to improve the color rendition of the lamp.  The circuit includes a first inductor, a diode and a capacitor connected across a DC source, and a second inductor, controlled thyristor switch and sodium vapor lamp connected in series across the cap-acitor, and a timing circuit for periodically turning on the switch at predetermined intervals.  The circuit provides for charging the capacitor, commutating the controlled switch, and discharge of the capacitor to enable subsequent re-charging thereof, so as to provide the desired pulsed operation of the lamp.  This mode of operating also provides for application of voltage to the lamp which is substantially higher than the supply voltage.
Patent CA-1079692-A (CA)
Inventor: HAGENES HARALD
IPC: B66D1/82
Filed: 1977-12-16
Granted: 1980-06-17
Abstract: ABSTRACT OF THE DISCLOSURE        A hydraulic winch system for pivoting a cargo boom by means of two winches which are adapted to pull the boom to their respective sides and which are controlled by a maneuvering valve and driven by a common pressure medium source, having the cable-tautening sides of both motors coupled to a separate, common, pressure-medium source, which provides a somewhat higher pressure than the pressure which at any time is highest on the cable-slackening sides of the two motors.
Patent CA-1089742-A (CA)
Inventor: BEDE JAMES D
IPC: D06F58/20
Filed: 1978-01-19
Granted: 1980-11-18
Abstract: ABSTRACT OF THE DISCLOSURE A heating vent is disclosed in which a T-shaped housing of light weight sheet metal is inserted h the plastic vent hose of an electric clothes dryer to provide passages through which the dryer is vented either outdoors through the vent hose or indoors through a sock-like filter having its open end stretched over the lateral outlet of the housing accoding to whether a pivoted valve member in the housing is in its summer or winter position.
Patent CA-1103775-A (CA)
Inventor: REUTTER JOERG
IPC: H03H7/52
Filed: 1978-03-31
Granted: 1981-06-23
Abstract: J. REUTTER - W. DIETZE - 9-10 (Revision) HYBRID FOR TWO-WIRE FULL-DUPLEX          TRANSMISSION OF DIGITAL SIGNALS          Abstract of the Disclosure The hybrid includes a control circuit which automatically matches the impedance of the balancing network to the input impedance of the two-wire line connected to the hybrid.  For control, rectified voltages present on the two-wire side and across the balancing network are averaged over time and the mean time values are compared.
Patent CA-1114500-A (CA)
Inventor: HATCHETT MICHAEL R
IPC: G11B17/022
Filed: 1978-04-10
Granted: 1981-12-15
Abstract: ABSTRACT OF THE DISCLOSURE    A disk cartridge containing a flexible record disk has a single internal spring loaded shutter for opening and closing a head access port adjacent a spindle access member in one face of the cartridge.  A further aperture allows the shutter to be actuated to an open position as the cartridge is loaded into a playing position on a disk drive.  The shutter also holds the disk against movement within the cartridge when it is not in use on the drive.
Patent CA-1083608-A (CA)
Inventor: ALEXANDERSON VERNER
IPC: C07C205/06
Filed: 1978-05-08
Granted: 1980-08-12
Abstract: CONTINUOUS ADIABATIC PROCESS FOR THE      MONONITRATION OF BENZENE                 ABSTRACT OF THE DISCLOSURE         Benzene is admixed and reacted continuously with a mixed acid containing 3-7.5% nitric acid, 58.5-66.5% sulfuric acid, and 28-37% water under pressure sufficient to maintain benzene in liquid state until complete conversion of nitric acid is achieved to provide mononitrobenzene containing less than 500 ppm dinitrobenzene.
Patent CA-1158258-A (CA)
Inventor: KAEDING WARREN W
IPC: C07C15/12
Filed: 1978-05-26
Granted: 1983-12-06
Abstract: ABSTRACT OF THE DISCLOSURE      A mixture of isomeric methyl ethenyl benezenes having a particular distribution of isomers is useful for preparing polymers with advantageous properties.  The isomeric mixture may be polymerized with other monomers to produce copolymers.
Patent CA-1087930-A (CA)
Inventor: BRANDT BERTIL
IPC: B41F31/10
Filed: 1978-06-27
Granted: 1980-10-21
Abstract: Abstract of the Disclosure The invention relates, on the one hand, to an elastomer rope which is useful among other things for clamping goods to the platform of a load carrying vehicle and for mooring boats, floating landing stages, buoys, navigation marks and the like, and, on the other hand, to a mooring device for anchoring floating landing stages, buoys, navigation marks and the like.      The elastomer rope has the property of becoming pro-gressively ever stiffer at increasing elongation and con-sists of a core of an elastomeric material, a reinforcement wound helically about the and consisting of a material considerably less elongatable than the elastomeric material of the core, and an outer covering layer of elas-tomeric material.  According to the invention, the progres-sivity is attained in that the reinforcement is helically wound about the core at a reinforcement angle of 50-65° between the longitudinal axis of the core and the reinforce-ment projected at right angles thereto.      The mooring device has a floating body connected to a bottom fastening with the aid of an elastic element which is under tensile prestress.  The floating body is rigidly connected to a rigid tubular arm which extends downwards from the floating body.  The elastic element extends from below into the tubular arm and is fixed to the upper end thereof.  The elastic element is such as to become progressively ever more rigid at increasing elonga-tion and consists of an elastomer rope of the above design.   1aa
Patent CA-1110927-A (CA)
Inventor: HEFFERNAN WILLIAM R
IPC: F21K2/06
Filed: 1978-09-01
Granted: 1981-10-20
Abstract: PERSONNEL MARKER DEVICE     ABSTRACT OF THE DISCLOSURE         A one-piece chemiluminescent lightstick tube with attached actuating device is protected in storage by an opaque sleeve slipped over the outside of the tube.  The sleeve is cut away to pass the attachment and may be fitted with a fastening device such as a clip or pin.
Patent CA-1118128-A (CA)
Inventor: BACKHOUSE ALAN J
IPC: C08F291/00
Filed: 1978-10-10
Granted: 1982-02-09
Abstract: ABSTRACT     A method of preparing a stable dispersion in an aqueous medium of particles of polymer in which stabilisation of the particles against flocculation is effected by a steric mechanism.  The method comprises (i) forming a sterically stabilised dispersion in a non-aqueous liquid of a first polymer insoluble both in the non-aqueous liquid and in water; (ii) polymerising monomer in the same non-aqueous liquid in the presence of the particles of the first polymer and of a steric stabiliser, so as to form a second polymer which is soluble in the chosen aqueous medium; (iii) transferring the resulting particles to the aqueous medium.  There may be prepared in this way aqueous dispersions of polymers incorporating units of water-soluble monomers, which are difficult to make by known aqueous emulsion polymerisation techniques.