baber/WOPTO huggingface dataset:
Patent CA-1098322-A (CA)
Inventor: FLETT DOUGLAS S
IPC: C22B3/38
Filed: 1978-01-11
Granted: 1981-03-31
Abstract: ABSTRACT OF THE DISCLOSURE     A process for the separation of cobalt from nickel by solvent extraction comprises contacting an aqueous solution containing divalent cobalt and nickel ions in the octahedral configuration with an organic phase comprising a solvent extraction agent containing an ester of phosphoric acid and then separating the organic phase containing cobalt from the aqueous phase containing nickel.  The contacting is carried out at a temperature in the range of 40°C to 90°C with a concentration of 11 to 16.0 grams per liter of cobalt in the organic phase so as to convert substantially all the cobalt present in the organic phase from an octahedral configuration to a tetrahedral configuration and thus enable the said organic phase to preferentially extract cobalt rather than nickel, the latter remaining in the octahedral configuration and in the aqueous phase.
Patent CA-1053883-A (CA)
Inventor: METZLER JAY C
IPC: D02G3/00
Filed: 1978-02-16
Granted: 1979-05-08
Abstract: A METHOD AND MACHINERY FOR MAKING         PILE WEATHERSTRIPPING Abstract of the Disclosure:          There is disclosed a method and machinery for making pile weatherstripping.  The first step is to form a plurality of continuous lengths of a resin anchorage base shaped for an interference fit in a retainer slot.  These bases are then advanced in parallel relation while a filament yarn is continuously wrapped around them.  The yarn is secured to the bases along opposite sides of each of them and then the yarn is slit to form a plurality of such bases each having an insulating pile row extending in the same general direction outward from each of the opposite sides of the base to extend outward from the retainer slot when the base is fitted therein.
Patent CA-1119387-A (CA)
Inventor: HAESE EGON
IPC: B01D53/68
Filed: 1978-03-01
Granted: 1982-03-09
Abstract: ABSTRACT OF THE DISCLOSURE     The invention relates to a process for the purifica-tion of industrial waste gases containing SO2 together with other harmful gas constituents, such as hydrogen fluoride, hydrochloric acid, SO3 and nitric oxides (NOx) by treating the flow of raw gas with ammonium ion containing solutions and ammonia.  According to the invention, the flow of raw gas is treated in a reaction tank in a number of successive stages, a solution which contains ammonium ions is introduced into the first stage, the gas dew-point being raised by partial evapor-ation of such solution.  The gas is cooled below its dew-point in the second stage, ammonia is introduced into the resulting gas mist mixture in the third stage, and the resulting ammonium salts are precipitated in the bottom part of the reaction tank in a fourth stage by treatment with an ammonium ion-containing solution.  The salts are fed to a reservoir, while the purified waste gas passes through a cooler before being discharged to the chimney, the waste gas being cooled in the cooler with the pre-ferably cooled solution containing the precipitated ammonium salts.  This process is less polluting than those presently known.
Patent CA-1132813-A (CA)
Title: Device in dental suction apparatus for  connecting and holding suction nozzle tubes  and/or for filtering
Inventor: HOFMANN HANS-JOACHIM
IPC: A61C/
Filed: 1978-03-28
Granted: 1982-10-05
Abstract: Docket No. U003-7915/REB     TITLE OF THE INVENTION:                 Device In Dental Suction Apparatus For Connecting And Holding Suction Nozzle Tubes and/or For Filtering ABSTRACT OF THE DISCLOSURE         Dental suction apparatus is a modular construction, compris ing a plurality of modules joined fluid-tight side-by-side.  A main suction duct extends through all of the modules.  At least two of the modules have connection for suction hoses each having a suction nozzle, means being provided on the modules for holding the suction nozzles when not in use.  At least one module comprises a filter chamber connected between a suction tube and the main suction duct. A removable filter unit in the filter chamber comprises a basket-shaped filter on a stem by means of which the filter can be removed through on opening closed by a hinged cover.  A cap on the stem pro-vides a seal for the filter chamber.  Flow of air from the suction tube of each suction tube module to the main suction duct is controlled by a valve in the form of a bellows provided with a telescopic guide and with control valve means for controlling the expansion and contraction of the bellows by differential pressure.
Patent CA-1136238-A (CA)
Inventor: CONTE ALBERTO
IPC: H03M1/00
Filed: 1978-04-27
Granted: 1982-11-23
Abstract: ABSOLUTE PRECISION TRANSDUCER     FOR LINEAR OR ANGULAR POSITION MEASUREMENTS                   ABSTRACT OF THE DISCLOSURE    A capacitively coupled readout device is associated with a cyclic precision measurement transducer to determine abso-lutely the cycle in which the transducer is positioned.
Patent CA-1084839-A (CA)
Inventor: MICHAELS ALAN S
IPC: A61K9/00
Filed: 1978-05-19
Granted: 1980-09-02
Abstract: Abstract of the Disclosure Therapeutic systems in the form of drug-containing bags or packets made from films of segmented copolyesters of butylene terephthalate and polyalkylene ether terephthalate are disclosed.
Patent CA-1093890-A (CA)
Inventor: NAKAMURA HACHIRO
IPC: A23L3/3463
Filed: 1978-06-15
Granted: 1981-01-20
Abstract: Abstract of the Disclosure Foodstuff freshness keeping agent comprising a particulate composition which contains a salt of manganese (II), iron (II), cobalt (II) or nickel (II), an alkali compound and a sulfite or a deliquescent substance, and optionally ascorbic acid or its salt, thereby to absorb oxygen in the interior of package of foodstuffs and/or generate therein carbon dioxide gas.
Patent CA-1095867-A (CA)
Inventor: THOMAS ERNEST L JR
IPC: B61K7/16
Filed: 1978-06-20
Granted: 1981-02-17
Abstract: TRANSIT VEHICLE STOPPING APPARATUS               ABSTRACT OF THE DISCLOSURE A train vehicle stopping apparatus is disclosed to provide a vehicle retarding force as a predetermined function of the desired stopping distance and provides a jerk limited stopping of the vehicle by a defined retard-ing force as a function of the vehicle travel distance.
Patent CA-1137205-A (CA)
Inventor: HUTCHINS ROGER W
IPC: H03H11/12
Filed: 1978-08-17
Granted: 1982-12-07
Abstract: ROGERS, BERESKIN & PARR                      C A N A D A                    ABSTRACT               An electronic filter for use in determining the vertical displacement of a body travelling through water relative to a datum such as mean sea level has specific app-lication to underwater seismic systems in which a towed body forms a part of equipment for producing profiles of under-water terrain.  Noise-corrupted vertical position and acceler-ation signals are generated respectively by pressure and acceleration transducers located in the towed body.  The filter has a first signal channel which receives and filters the position signal, and a second signal channel which receives and filters the accelleration signal.  The transfer functions of the first and second signal channels are selected  to attenuate noise characteristic of the position and accelleration signals, and are related in a manner which permits the filter to effect-ively sum the filtered signals to generate a signal indicative of the body's vertical displacement.  The first signal channel has a transfer function which is substantially the product of a predetermined gain divided by the pressure transducer gain and a first real, rational, polynomial function of the form P1(s)/Q(s).  The second signal channel has a transfer function which is substantially the product of the predetermined gain divided by the accelerometer gain and a second real, rational polynomial function of the form sP2(s)/Q(s).  The degree of Q(s) is an integer n greater than 2, and the degree of each of P1(s) and P2(s) is less than n.  P1(s) and P2(s) are constrained to satisfy the relationship P1(s)+ s3P2(s) = Q(s).  The magnitude of P1(s)/Q(s) is arranged to be less than 1 for S = jw where w is any radial frequency within the frequency range of the pressure transducer noise,  and the zeroes of Q(s) are selected so that a transfer function 1/Q(s) has a 20n db/decade roll-off in the frequency range of the pressure transducer noise.  The second signal channel has a transfer function zero at 0 frequency so that typical accelerometer noise is attenuated.
Patent CA-1098491-A (CA)
Inventor: KLOMP FRANCISCUS M
IPC: B65D85/42
Filed: 1978-08-24
Granted: 1981-03-31
Abstract: ABSTRACT:           Electric lamps are packaged with a single strip of packaging material extending from the lamp cap, curved around the convex lamp envelope portion, to the lamp cap.          In spite of the package the shape and the construction of both the lamp cap and the lamp envelope are visible.  The packaging requires little material and nevertheless provides an effective protection for the lamp.
Patent CA-1098691-A (CA)
Inventor: HURNI HANS
IPC: E01B35/00
Filed: 1978-09-18
Granted: 1981-04-07
Abstract: SINGLE BEAM REFERENCE SYSTEM FOR RAILWAY SURVEYING                    ABSTRACT OF THE DISCLOSURE A railway surveying apparatus is disclosed.  The apparatus has a light beam transmitter for transmitting a beam along the track, a light beam receiver and an intermediate shadow board all mounted on respective rail-engaging buggies so that the transmitter, receiver and board are located on the center line of the track.  The shadow board and receiver buggies are connected through a twist transducer that measures the relative angular positions of the buggies.  A pendulum is mounted on the receiver buggy and serves to measure the actual rail cross level condition at that point. A pendulum on the transmitter buggy and appropriate circuitry can reference the apparatus to either the track center line or one of the rails.
Patent CA-1095138-A (CA)
Inventor: GALLAGHER DAVID A
IPC: H01R13/639
Filed: 1978-09-21
Granted: 1981-02-03
Abstract: ABSTRACT This invention relates to electrical connector coupling devices and more particularly to coupling assemblies for resilient connector components.  Numerous arrangements for interconnecting electrical connector components are known including a wide variety of assemblies employing coupling rings.  Such coupling assemblies have generally been complex and relatively expensive to construct. Furthermore, they have generally been employed with connector components constructed from rigid inflexible materials, thus requiring additional structural elements to securely maintain an assembled coupling ring in place about the rigid connector component. These additional structural elements increase the complexity of assembly as well as the cost or construction.  The present invention provides an assembly for coupling a resilient electrical connector component to another mateable connector component, which includes a shell engageable about the resilient component.  The shell includes a plurality of circumferentially spaced fingers at one end thereof which surround the resilient component.  The fingers include means for defining a substantially rigid circumferential bearing surface thereabout.  An annular coupling member is provided which is engage-able with the bearing surface for rotation about the shell and includes means for attachment to the mateable connector component. The coupling member and the bearing surface means are configured and arranged such that the inherent elasticity of the resilient component maintains the coupling member and bearing surface in cooperative engagement.
Patent CA-1108236-A (CA)
Inventor: BESEKE KERMIT
IPC: H04B3/20
Filed: 1978-09-21
Granted: 1981-09-01
Abstract: LEVEL CONTROL CIRCUITRY FOR TWO WAY COMMUNICATION SYSTEM     ABSTRACT OF THE DISCLOSURE    Signals carried over a multiplexed transmission medium between first and second stations suffer transmission losses such that the signal one station generates has a substantially greater magnitude than the signal it receives from the other station.  A differential amplifier is utilized to extract and amplify the weaker signal thereby establishing signal balance.  Following the differential amplifier is an automatic gain control stage which includes novel sample and hold and activity checker circuitry.  The activity checker responds to the frequency of input signals to either allow variable gain control action or, when the frequency is representative of noise, to hold the gain control at its instantaneous value prior to the onset of noise.
Patent CA-1114253-A (CA)
Inventor: TAMAKI SIGEO
IPC: F02M7/08
Filed: 1979-01-16
Granted: 1981-12-15
Abstract: ACCELERATOR PUMP FOR CARBURETOR          Abstract of the Disclosure An accelerator pump for a carburetor comprises a piston assembly located in a cylindrical well formed in a carburetor body, a link mechanism for actuating the piston assembly in response to movement of a throttle valve, and a tapered stopper.  The piston assembly is separated from the link mechanism and engages with it only during accel-eration.  The tapered stopper is inserted in a hole made in said carburetor body, which hole is perpendicular to the cylindrical well, extending through a hole made in the piston assembly.  A gap defined between the tapered stopper and the peripheral portion of the hole of the piston assembly determines the stroke of the piston assembly.  Further, the gap is adjustable by axial move-ment of the tapered stopper.  The tapered stopper is locked with a sealing material after being adjusted so that a user can not adjust the tapered stopper again to increase the charge of fuel delivered during acceleration, thereby avoiding undesirable exhaust pollution caused when the charge of fuel is increased.
Patent CA-1122993-A (CA)
Inventor: SCHULZ J GUSTAV
IPC: C08G59/42
Filed: 1979-01-19
Granted: 1982-05-04
Abstract: ABSTRACT OF THE DISCLOSURE           There is disclosed a mixture of polycyclic aromatic polycarboxylic anhydries carrying nuclear nitro groups that is substantially soluble in acetone but substantially insoluble in water and a process for preparing the mixture.  The mixture so formed is useful as a curing agent, for example, in combination with epoxy resins.  The preferred process involves reacting a carbonaceous slurry with nitric acid.
Patent CA-1115715-A (CA)
Title: Method for preparing 3-amino-5(t-butyl)  isoxazole
Inventor: BUROW KENNETH W JR
IPC: C07D261/14
Filed: 1979-02-15
Granted: 1982-01-05
Abstract: Abstract of the Disclosure 3-Amino-5-(t-butyl)isoxazole, in optimum yield, is prepared by reacting pivalyl acetonitrile with hydroxylamine under controlled conditions of ph.      The compound is a useful intermediate for the prep-aration of isoxazole derivatives having utility as herbicides.
Patent CA-1112223-A (CA)
Inventor: TAKAHASHI SHIRO
IPC: F04B35/04
Filed: 1979-04-06
Granted: 1981-11-10
Abstract: ABRIDGEMENT           In the construction of an electro-magnetic fluid pump such as an air pump in which a piston assembly carrying an armature is driven for reciprocal axial movement due to ope-rational combination of magnetic attraction generated by a stator core and mechanical spring repulsion for cyclic dis-charge of the fluid out of its piston chamber, the piston assembly is positively supported on both axial sides of the stator core and a pneumatic spring is incorporated within the piston assembly.  Biased movement of the piston assembly and bias in the magnetic attraction are both successfully prevented in order to minimize undesirable abrasion of the piston assembly and its related parts.
Patent CA-1136903-A (CA)
Title: Acier de construction presentant une  haute resistance a la fatigue
Inventor: GIFLO HENRIK
IPC: C22C38/00
Filed: 1979-05-03
Granted: 1982-12-07
Abstract: L'invention est relative à des aciers de construction. Ces aciers sont essentiellement caractérisés par le fait qu'ils comprennent en plus du fer, au maximum 1,6% (en poids) de C, 0,3 à 3,0% (en poids) de Mn et/ou de Ni, au maximum 1,8% (en poids)de Si, 0,6 à 4,0% (en poids) de Cu, au maximum 3,0% (en poids) de Mo et/ou de Co, 0,02 à 0,4% (en poids) de Nb et/ou de V, au maximum 0,006% (en poids) de B, au maximum 0,4% (en poids)de Zr et/ou de Be, 0,02 à 0,2% (en poids) de Al, 0,005 à 0,2% (en poids) de N, au minimum 0,0005% (en poids) de Ca, et au maximum 0,25% (en poids) de Ce et/ou de Pb, et jusqu'à 0,1% de soufre. Ces aciers présentent une haute teneur en carbone bien définie (0,30%) une bonne soudabilité et sont résistants à la corrosion à l'air.
Patent CA-1136762-A (CA)
Inventor: ITO YUTAKA
IPC: H04N5/073
Filed: 1979-05-18
Granted: 1982-11-30
Abstract: ABSTRACT OF THE DISCLOSURE The invention relates to a frame synchronizer having a write-inhibit circuit.  A frame synchronizer brings an incoming television signal into synchronism with a reference synchronizing signal by writing the incoming signal in a memory, while the read-out of the memory is carried out in re-sponse to the synchronizing signal.  In a conventional frame synchronizer, the switch-over at its input from a first incoming television signal to a second television signal which is not synchronized with the first one causes at the output of the synchronizer a disturbance of the second signal by the first one.  In the present invention, there is provided a frame synchronizer having a write-inhibit circuit which provides a  write-inhibit control signal for inhibiting the write-in of  the second input television signal from the moment of switch-over to the beginning of a complete frame of the second in-put signal thereof.  The improved frame synchronizer in accordance with the invention prevents the above-mentioned disturbance of television signals caused by the non-synchronous switching at its input.
Patent CA-1118316-A (CA)
Inventor: RUBEY ROBERT J
IPC: F16K15/00
Filed: 1979-06-19
Granted: 1982-02-16
Abstract: - l -ABSTRACT OF THE DISCLOSURE   A check valve which has top and bottom flanges and a valve body thereinbetween.  The flanges have aligned holes therethrough which serve as an inlet (bottom flange) and an outlet (top flange) for fluid flowing through the valve.  A spherical ball is contained within the valve body and rests on a ball seat surrounding the inlet.  A top plate is positioned adjacent to the top flange and has an opening therethrough which diverges concentrically toward the outlet opening, and a ring shaped ball stop which receives the ball when it is forced away from the ball seat by the fluid is positioned between the top plate and the top of the ball.  Also, the inlet may have a restricted portion so that a diverging portion of the inlet opens into the valve body.
Patent CA-1104768-A (CA)
Inventor: BECKA MICHAEL M
IPC: C14B1/48
Filed: 1979-07-18
Granted: 1981-07-14
Abstract: MACHINE FOR ROUGHING THE MARGIN OF AN UPPER OF A SHOE ASSEMBLY          ABSTRACT OF THE DISCLOSURE   A roughing machine having a support (68,72) for supporting bottom-up a shoe assembly (82) formed of a last (84) having an insole (88) located on its bottom and an upper (86) mounted thereon with the margin (90) of the upper (86) secured to the bottom of the insole (88) and a roughing tool (74) located above the shoe assembly (82) and yieldably urged downwardly against the shoe assembly (82) so as to rough the upper margin (90) during movement of the support (68,72) to move the upper margin past the roughing tool (74).  The shoe assembly bottom has its heel seat portion (92), its shank portion (94) and its forepart portion (96) lying in different planes.  The support (68,72) is so constructed as to be rockable in such a manner that the heel seat portion, the shank portion, and the forepart portion of the upper margin (90) all lie in horizontal planes during their movement past the roughing tool (74).
Patent CA-1100331-A (CA)
Inventor: PRESCOTT JOHN F JR
IPC: G01N15/08
Filed: 1979-07-19
Granted: 1981-05-05
Abstract: Abstract of the Disclosure A flow bench includes a sealed box with an internal plenum having air flow from a source of pressure directed to several spaced points within the plenum; the sealed box includes an open upper end having a support surface around the open end including undercut spaced parallel grooves at an offset point thereon supporting a pair of seals in sealing engagement with the outer perimeter of a laminated porous panel that completely covers the open end; the flow bench further includes a removable cover including a plurality of dependent pins thereon each with a resilient distal end engageable with the laminated porous panel to prevent buckling across the planar extent thereof and wherein the removable cover includes a peripheral seal plate thereon with an undercut shoulder that accommodates the peri-meter of the laminated porous panel and including a groove with a single O-ring therein located above one of the pair of O-ring seals and a plurality of clamp means being provided to bias the seal plate against the outer perimeter of the laminated porous panel to seal the member at the top, bottom and outer surface thereof whereby the air flow through the plenum passes only through the pores of the laminated porous panel thereby to prevent significant sources of error produced by small leakage from other points in the system and wherein means are associated with the fluid flow to the plenum to measure the flow rate through the pores of the laminated porous panel to establish an absolute quantitative measurement of flow rate therethrough for accurately determining the metal cooling properties of the member in a gas turbine engine operating environment.
Patent CA-1135313-A (CA)
Title: Dispositif antifriction, notamment pour  turbine, et un palier
Inventor: CORTES ABEL
IPC: F16C37/00
Filed: 1979-08-10
Granted: 1982-11-09
Abstract: Dispositif antifriction pour machine comprenant une pièce fixe et une mobile, reposant l'une sur l'autre. Ces pièces sont réalisées en concrétions diamantées et les surfaces des pièces en contact sont rodées jusqu'à disparition de toute trace d'usure sensible.
Patent CA-1128223-A (CA)
Inventor: NILSSEN ALBERT G
IPC: H04Q1/444
Filed: 1979-08-31
Granted: 1982-07-20
Abstract: Abstract of The Disclosure A station-to-station supervision system for a telephone system has a dual tone multiple frequency (DTMF) signal generator connected to the transmit line at each subscriber station, and a standard audible signal generator is connected to the receive line at each subscriber station for generating dial tone, ringback tone, reorder tone and busy tone in response to supervisory DTMF signals.  Control means associated with each subscriber station effect the generation of a dial tone disable DTMF signal from a calling station in response to the combination of an off-hook condition at the calling station and the absence of a DTMF signal from any other station in the system; a busy tone command DTMF signal from any given station in response to the combination of an address signal for that station and an off-hook condition at that station; and a ringback tone command DTMF signal from any given station in response to the combination of an address signal for that station and an  on-hook condition at that station.  The control means also generates a DTMF signal for terminating ringback tone at a calling station when a called station comes off-hook.          The system also includes optional operating modes such as push-to-talk, conference calls, group calls, and all call.