baber/WOPTO huggingface dataset:
Patent CA-1124393-A (CA)
Inventor: KLEUTERS WILHELM J
IPC: G11B7/08
Filed: 1978-12-07
Granted: 1982-05-25
Abstract: ABSTRACT    A unit for optical1y reading a rotating video disk comprises a semiconductor diode laser for producing a reading beam and a lens  system to focus the beam.  An automatic track-ing system has a scan wobbler with an electro-mechanical drive to periodically move the radiation source to cause the read spot in the focussing plane to move periodically about a mean position with an amplitude smaller than the read spot size (scan wobble) in a direction transverse to the information track being read.  The unit also contains a focussing wobbler with an electro-mechanical drive means for periodically moving the radiation about a mean position with low amplitude (focuss-ing wobble) in a direction normal to the information plane at the location of the read spot.  At least one of the wobblers comprises a metal resilient rod-shaped carrier with the rad-iation source secured to its end and a metal heat sink to which the rod-shaped carrier is attached. Piezo-electric drive means are rigidly connected to the radiation source carrier and also rigidly connected to parts of the read unit which are stationary.
Patent CA-1142582-A (CA)
Inventor: CHIANG DAVID
IPC: H02P8/24
Filed: 1979-01-25
Granted: 1983-03-08
Abstract: ABSTRACT OF THE DISCLOSURE         An open loop control device and method are provided for stepping motors.  By energizing a motor so that the rotor motion is the result of a revolving field which is of stepwise constant speed and uniform field strength, the rotor can be brought to a stop at any desired position.  Such position can be the same as or different from the conventional full-increment or half-increment detent positions of the motor.  This control me-thod and device guarantee that there is no oscillation when the rotor reaches its final position.
Patent CA-1128954-A (CA)
Inventor: FINLAYSON CLAUDE M
IPC: C09D7/43
Filed: 1979-03-14
Granted: 1982-08-03
Abstract: ABSTRACT: An organoclay rheological additive for non-aqueous fluid systems comprising an organophilic clay comprising the reaction product of a smectite-type clay having a cation exchange capacity of at least 75 milliequivalents per 100 grams of clay and methyl benzyl dialkyl ammonium compound or dibenzyl dialkyl ammonium compound wherein the alkyl groups contain specific amounts of 8 to  22 carbon atoms and the amount of said ammonium compound reacted with said clay being from 100 to 130 milliequivalents per 100 grams of clay based upon 100? active clay.
Patent CA-1118329-A (CA)
Inventor: VINATIERI JAMES E
IPC: E21B43/16
Filed: 1979-04-11
Granted: 1982-02-16
Abstract: Abstract of the Disclosure Extrema in intensive physical properties in a multicomponent fluid system having at least four components, which system exhibits three phases id equilibrium are located by analyzing each of the three phases or an "averaged" representation of the three phases for the concentration of each of the compo-nents and thereafter subjecting the resulting analysis to a Gram-Schmidt Orthogonalization to determine the composition of at least on pseudocomponent which is orthogongal to the other components. By this means, it is possible to go more quickly in a direction whereby a property in question changes most rapidly. Such techniques have wide applicability in optimizing compositions for desired intensive property such as interfacial tension. This can be useful in designing surfactant systems for oil recovery, for instance.
Patent CA-1122689-A (CA)
Inventor: KLEIN KEITH W
IPC: H02H3/26
Filed: 1979-05-17
Granted: 1982-04-27
Abstract: ABSTRACT      A ground fault protector includes a conventional ground fault circuit interrupter (GFCI) electronic module which receives operating power over a separate supply circuit to render the pro-tector operable in affording personnel ground fault protection for a circuit whose nominal voltage i  inappropriate to power the module.          The protector includes contacts operating in both the supply and protected circuits such that, in the event of a ground fault on the protected circuit, both circuits are interrupted.  The supply cir-cuit is also equipped to simulate a ground fault condition for verifying operability of the protector.
Patent CA-1106740-A (CA)
Inventor: REID THOMAS
IPC: B21D7/06
Filed: 1979-05-31
Granted: 1981-08-11
Abstract: PIPE-BENDING APPARATUS                            ABSTRACT       A pipe-bending apparatus comprises an elongate structure having a longitudinal work surface at, or adjacent to, opposite ends of which clamping means and a former are respectively mounted.  The former is held fast on the work surface, and the clamping means is power-driven towards and away from it by a double-acting hydraulic ram.      A series of formers are provided, each having, in plan, a semi-circular anvil mountable to face the clamping means.  The anvils are each of concave vertical cross-section and-of different radius from one another, with peripheral walls to locate a pipe in position in the anvil during a bending operation. The ram is supplied from a tank containing a hydraulic fluid tank which - together with the necessary hydraulic pump and electric motor - is mounted beneath the work surface.
Patent CA-1249700-A (CA)
Inventor: LEFRANCIER PIERRE
IPC: A61K31/70
Filed: 1979-06-05
Granted: 1989-01-31
Abstract: IN THE CANADIAN PATENT OFFICE     PATENT APPLICATION     entitled Novel compounds of the muramyl-peptide type and medicaments containing them in the name of :     AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE                     (A N V A R) ABSTRACT OF THE DISCLOSURE      The compounds have the structure 2-(2-amino or alkyl-amido-2-desoxy-3-O-D-glucopyranosyl)-alkanyl-dipeptide, possibly substituted on the saccharide residue, the amino acid residue at the end of the peptide chain being a D-glutamyl residue whose .alpha.-carboxy function is esterified and  ?-carboxyl function amidated. The compounds are valuable as immunological medicaments.
Patent CA-1133029-A (CA)
Inventor: WELD RICHARD G
IPC: B60B1/04
Filed: 1979-06-22
Granted: 1982-10-05
Abstract: Abstract A wire spoke, non-suspension type, automotive wheel in which the spokes are operably untensioned prior to vehicle loads being placed upon the wheel.  An outer tubeless tire rim with a drop center is mounted to a wheel center which includes a substantially thick and solid felly connected to a concentrically positioned hub.  Wire spokes extend radially outward from the hub in circumferential array and have tenons or feet on inner ends thereof which are anchored within recesses at front and rear ends of the hub.  Radially outer ends of the spokes are plain terminations welded in the shape of a plug anchor within circumferentially spaced bores in the felly to secure the spokes and permit wheel formations which exhibit the classic beauty and elegance of a suspension wire spoke wheel, combined with durability, strength and ease of construction.
Patent CA-1107035-A (CA)
Inventor: MYSELS KAROL J
IPC: C01B7/14
Filed: 1979-06-27
Granted: 1981-08-18
Abstract: ABSTRACT      The components of a liquid mixture consisting essentially of HI, water and at least about 50 w/o iodine are separated in a countercurrent extraction zone by treating with phosphoric acid containing at least about 90 w/o H3PO4.  The bottom stream from the extraction zone is substantially completely molten iodine, and the overhead stream contains water, HI, H3PO4 and a small fraction of the amount of original iodine.      When the water and HI are present in near-azeotropic proportions, there is particular advantage in feeding the over-head stream to an extractive distillation zone wherein it is treated with additional concentrated phosphoric acid to create an anhydrous HI vapor stream and bottoms which contain at least about 85 w/o H3PO4.  Concentration of these bottoms provides phosphoric acid infeed for both the countercurrent extraction zone and for the extractive distillation zone.
Patent CA-1110020-A (CA)
Inventor: PRICHARD ARTHUR W
IPC: A43D11/12
Filed: 1979-09-20
Granted: 1981-10-06
Abstract: ABSTRACT OF THE INVENTION     A clamp heater for heating shoe upper portions prior to molding them comprises an inner metal form and a cooperating outer band constructed of silicone rubber. The inner metal form has a cartridge heater accommodated therein. The outer band is heated by a radiant heater arranged about its outer surface. When the inner form carries a shoe upper portion into the outer band, the outer band wraps around the shoe upper portion and clamps it about the inner form, to emsure efficient heat transfer. To protect the outer band from heat damage, a temperature control device in the form of a thermostat is provided. The inner form also has a temperature control device therein. To ensure adequate heat is available in the operation of the clamp, when the inner form is moved to carry the shoe upper portion into the outer band, the temperature controls are both overridden and the heaters are rendered operative.
Patent CA-1129853-A (CA)
Title: 4-phenyl-1,3-benzodiazepines and method of  preparing the same
Inventor: MARTIN LAWRENCE L
IPC: A61K31/55
Filed: 1979-10-04
Granted: 1982-08-17
Abstract: Abstract of the Disclosure:      Novel 4-phenyl-1,3-benzodiazepines, novel inter-mediates thereof, and methods of preparing same are des-cribed.  These benzodiazepines are useful as antidepressants, analgetics and anticonvulsants.
Patent CA-1140234-A (CA)
Inventor: NARIMATSU AKIHISA
IPC: G01D5/245
Filed: 1979-10-23
Granted: 1983-01-25
Abstract: ABSTRACT OF THE DISCLOSURE         A  magnetoresistive displacement sensing transducer employs a plurality of sensing elements consisting of mag-netically biased magnetoresistive stripes.  Each sensing element is operative to Produce a signal in response to linear or rotational displacement with respect to a magnetic grating.  The phases of the signals from the plurality of sensing elements are relatively displaced to permit determining direction of displacement and to increase accuracy through interpolation.  A signal processing circuit uses the signals from the sensing elements and optionally their sums and differences to drive a reversible counter which is thereby updated to retain a value corresponding to the position of the transducer or the magnetic grating.
Patent CA-1149769-A (CA)
Inventor: INUI TSUNEO
IPC: C25D3/60
Filed: 1979-11-15
Granted: 1983-07-12
Abstract: ABSTRACT OF THE DISCLOSURE           An acidic tinplating electrolyte containing at least one sulfate selected from the sulfates of alkali   metals, ammonium, aluminum, manganese or chromium in a known stannous sulfate or stannous phenolsulfonate electrolyte; this acidic tinplating electrolyte is suitable as a preplating electrolyte for a tinplate in which excellent corrosion resistance is required and also as an electrolyte for the production of a steel sheet having an extremely thin tin layer or an extremely thin iron-tin alloy layer, as a very dense and uniform tin layer is formed on the steel sheet by using the electrolyte of this invention.
Patent CA-1136972-A (CA)
Inventor: KONDO KOICHI
IPC: G01N33/53
Filed: 1979-12-21
Granted: 1982-12-07
Abstract: ABSTRACT OF THE DISCLOSURE By using a new pretreatment agent consisting essentially of a carboxylic acid-type cation exchange resin fiber or a siliconized glass fiber, the interfering components and the elements of turbidity present in a subject fluid for immunologic pregnancy test can be specifically removed without entailing a substantial loss of human chorionic gonadotropin contained in the subject fluid.
Patent CA-1119777-A (CA)
Inventor: MANNING WILLIAM P
IPC: B01D53/34
Filed: 1980-01-18
Granted: 1982-03-16
Abstract: PROCESS FOR THE REMOVAL OF HYDROGEN SULFIDE FROM GAS MIXTURES                     ABSTRACT OF THE DISCLOSURE     An aqueous solution of a zinc salt is used to selectively remove hydrogen sulfide from a gas mixture.  An insoluble basic zinc compound is added to the solution to regenerate, or replenish, the salt.  A dispersant is added to both decrease the surface tension of the liquid and reduce the degree of hydration of the basic compound thereby retarding significantly the agglomeration, settling and loss of the basic zinc compound.
Patent CA-1134173-A (CA)
Title: Apparatus for determining the differential  pressure and the volumetric fluid flow in a  conduit
Inventor: GROENBERG PAULI
IPC: G01F1/42
Filed: 1980-01-22
Granted: 1982-10-26
Abstract: Abstract of the Disclosure An apparatus for determining the differential pressure and the volumetric fluid flow in a conduit.          The apparatus comprises an annular plate means positioned substantially coaxially within the conduit or within an open-ended housing forming part of the conduit.  The annular plate means is provided, in its central portion, with an orifice for the fluid flow.  On each side of the annular plate means there is a pipe loop provided with a series of ports, such as holes or slots with relatively small dimensions, for sensing the pressure at different points upstream and downstream, respectively, of the plate means.  Pressure responsive means are operatively connected to the ports for determining the differential pressure on opposite sides of the plate means.  An annular additional passage for the fluid flow is formed between the outer periphery of the annular plate and the inner wall of the conduit or the open-ended housing.
Patent CA-1183083-A (CA)
Inventor: MCALEER WILLIAM J
IPC: A61K39/245
Filed: 1980-01-31
Granted: 1985-02-26
Abstract: ABSTRACT OF THE DISCLOSURE           A new method of formulating herpes class virus vaccines, especially Marek's Disease vaccine.  The virus is lyophilized in the presence of a pH controlled buffered stabilizer, so that the vaccine can be re-constituted simply with distilled water.
Patent CA-1125647-A (CA)
Inventor: VESPER JAMES E
IPC: F24F6/04
Filed: 1980-03-04
Granted: 1982-06-15
Abstract: Humidifier Abstract The humidifier is comprised of a substantially rectilinear container having a water reservoir in the base thereof and aligned rectilinear openings in the major front and rear surfaces.  The interior surfaces of the top and bottom walls of the container are provided with parallel spaced apart grooves for removably supporting a plurality of evaporator plates of absorbent material in parallel spaced apart relation to each other perpen-dicular to the aligned apertures in the front and rear surfaces.  The plates have a configuration  to facilitate their insertion and removal through the rear aperture and guide grooves are provided on the interior surface of the front wall beneath the aperture.  A hook and quick release device are provided for detachably supporting the humidifier from a standard wall type hot air register.
Patent CA-1099974-A (CA)
Title: Custom programmable phototypesetter
Inventor: EBNER PETER R
IPC: B41B21/20
Filed: 1980-03-04
Granted: 1981-04-28
Abstract: ABSTRACT OF THE DISCLOSURE      A phototypesetter is disclosed having a stepping motor which actuates an escapement carriage coupled to an elongated carriage driving member.  A projection lens carriage and a collimating lens carriage are selectively electromagnetically coupled to the elongated driving member, thereby to project images of varying character sizes through a focusing lens coupled to the escapement carriage, which sequentially projects focused character images across a photosensitive film on a line by line basis.   A track select mirror is also selectively electromagnetically coupled to the elongated driving member for selectively projecting one of a plurality of tracks bearing characters of differing fonts carried by a rotatable font carrier element. A group of custom-ized lens carriage positioning control codes and customized sizing codes, unique for each phototypesetter as a function of lens parameter variations, are stored within a size dictionary and a particular set, associated with the character size being typeset is read out of the dictionary and is employed to control the customized positioning of the lens carriages and image (film) positioning stepping motors.  A novel technique is also disclosed whereby a customized group of the above-mentioned codes is rapidly and easily generated by an iterative image inspection process for each particular phototypesetter during manufacture.
Patent CA-1144087-A (CA)
Title: Method and apparatus for the leak testing of filters
Inventor: WILCOX DAVID E
IPC: G01N15/08
Filed: 1980-03-05
Granted: 1983-04-05
Abstract: METHOD AND APPARATUS FOR THE LEAK TESTING OF FILTERS Abstract of the Disclosure A method and apparatus for the leak testing of one or more filters, which requires minimum space, and which comprises a housing (12) adapted to sealably mount the filters (30), means (40, 41) for introducing DOP particles within the housing and immediately upstream of each of the filters, and a restriction member (54) mounted in the housing upstream of each filter and downstream of the point at which the DOP is introduced. The member (54) may be selectively positioned to assume an operative position transverse to the airstream wherein it acts to condense and mix the airstream and DOP and then disperse the mixture over the full frontal area of the adjacent filter, or a non-operative position wherein the member is substantially withdrawn from the airstream. Means (70) are also mounted downstream of each filter for monitoring the airstream to detect DOP particles, and thereby permit a determination as to whether any of the particles are leaking through or around the filter.
Patent CA-1153804-A (CA)
Inventor: DAUTREMAY ALAIN
IPC: H04L7/00
Filed: 1980-05-29
Granted: 1983-09-13
Abstract: ABSTRACT OF THE DISCLOSURE     A device for the synchronization of a local timing signal which restores the baud rhythm at which the binary data of a message are received comprises a device for making the frequency and phase of the local timing signal dependent on the transitions of the data signal received and a rapid synchronization circuit for accelerating the synchronization process. This circuit counts the number of coincidences of n successive transitions detected (n equals a positive integer) with each of k separate time intervals (k equals positive integer) of the same duration. It divides up the integrality of each cycle of the local timing signal and supplies a pulse as from the time at which p coincidences with one of the k intervals of time have been counted. This pulse makes it possible to initiate the dependent local timing signal within a very short time.
Patent CA-1166129-A (CA)
Inventor: KEMLAGE BERNARD M
IPC: H01L21/316
Filed: 1980-06-16
Granted: 1984-04-24
Abstract: PREVENTION OF LOW PRESSURE CHEMICAL VAPOR DEPOSITION SILICON DIOXIDE UNDERCUTTING AND FLAKING                         Abstract A chemical vapor deposition process wherein a silicon nitride, or the like, barrier layer of the order of 50 to 3000.ANG. is formed over a silicon substrate ar.d a low pressure chemical vapor deposition of a chloro-silane and a nitrous oxide oxidizing gas is used to form a silicon dioxide over the silicon nitride layer. This process overcomes the problem of the low pressure chemical vapor deposition of silicon dioxide that does not use the silicon nitride layer.  The problem is degradation of the silicon dioxide layer during subsequent oxidation cycles.
Patent CA-1129525-A (CA)
Title: Hydrostatic transmission control system
Inventor: BRANSTETTER RONALD L
IPC: G05D3/14
Filed: 1980-07-07
Granted: 1982-08-10
Abstract: HYDROSTATIC TRANSMISSION CONTROL SYSTEM               Abstract of the Disclosure The hydrostatic transmission control system includes a first and second two-position solenoid valve which function to alter the hydraulic fluid parameters as delivered to the servo control cylinders of a variable displacement pump associated with a hydrostatic transmission.  Activation of the first solenoid valve instigates a varying of pump displacement.  Once the desired pump displacement has been achieved, the second solenoid valve is activated to maintain the desired pump displacement.  The deacti-vation of both solenoid valves results in the hydrostatic trans-mission seeking and maintaining a neutral mode.
Patent CA-1134179-A (CA)
Inventor: ALLEN DAVID H
IPC: F16H19/04
Filed: 1980-08-06
Granted: 1982-10-26
Abstract: ABSTRACT        A rack and pinion assembly in which a rack bar (1) is longitudinally displaceable through housing (2) by rotation of a pinion (4) engaging with the rack (3).  The rack bar (1) is supported in engagement with the pinion (4) by a plastics moulded bearing member (7) having a saddle-shaped bearing part (9) and a tubular retaining part (8) which is displaced longitudinally from the part (9).  the bearing part (9) is of saddle-shape to straddle the rack bar (1) opposite to the region of engagement between the rack and pinion teeth and has a resilient bearing surface which biases the rack bar laterally into engagement with the pinion.        The straddling portions of the saddle-shape restrain the rack bar from displacement in the direction of the pinion axis (4a).  The retaining part (8) locates the bearing member (7) in the housing (2) and restrains that member from rotation (by keying engagement between rib (11) and channel (12)) and from longitudinal displacement by its co-operation in an annular recess (15).  The bearing member (7) can co-operate with the recess (15) by snap engagement during initial location of the bearing member.     Preferably the saddle-shaped bearing part (9) has three discrete circumferentially spaced bearing surfaces each of part cylindrical profile which slidably engage with a complementary cylindrical profile on the rack bar (1).  The bearing member (7) can be a one piece moulding in resilient plastics and the bearing part (9) can be pre-loaded by its assembly with the rack bar to constantly bias the rack bar into engagement with the pinion.
Patent CA-1129400-A (CA)
Title: PROCESS FOR POLYMERIZING .alpha.-OLEFINS
Inventor: SAKURAI HISAYA
IPC: C08F10/00
Filed: 1980-08-11
Granted: 1982-08-10
Abstract: ABSTRACT OF THE DISCLOSURE A process for polymerizing .alpha.-olefin comprising contacting the olefin in liquid phase at a temperature of about 120 to 320°C with a catalyst comprising a component (A) and an organometal component (B), the component (A) being produced by reacting a hydrocarbon-soluble organo-magnesium component (1) of the formula,   wherein .alpha., p, q, r, s and t each independently is 0 or a nubmer greater than 0, p + q + r + s =  m.alpha. + 2 0 ? (r + s)/(.alpha. + 1) < 2, m is the valence of M, M is a metal of the 1st to 3rd groups of the Periodic Table, R1 is a hydrocarbon group having a 1 to 20 carbon atoms, R2 is a secondary or tertiary alkyl group having 3 to 20 carbon atoms, X1 and X2 each independently is a hydrogen atom or an organic electronegative group containing O, N or S, D is an electron donor, with a compound (ii) of the formula, R?C Y4-a wherein R3 is a hydrogen atom or a hydrocarbon group having 1 to 10 carbon atoms, Y is a halogen atom, a is 0 or 1, and contacting the product or (i) + (ii) with (iii) a compound of titanium and/or a compound of vanadium at a concentration of titanium plus vanadium of at most about 2 mols per liter of the inert reaction solvent, the atomic ratio of Mg/(Ti + V) in (A) being about 3 to about 500.
Patent CA-1166394-A (CA)
Inventor: TINKELENBERG ARIE
IPC: C08L97/02
Filed: 1980-09-10
Granted: 1984-04-24
Abstract: A B S T R A C T         The invention concerns the production of particel board with a very substantially lowered formaldehyde emission as well as suitable binding agents.         According to the invention the binding agent used in the production of the board is a combination of a ployisocyante with a aminoplast resin containing 0.25 to 0.625 moles of formaldehyde per mole equivalent of aminogroups.  The particle boards thus obtained possess satisfactory mechanical properties and a strongyl reduced formaldehyde emission.