baber/WOPTO huggingface dataset:
Patent CA-1048139-A (CA)
Inventor: LAVERY LAWRENCE P
IPC: H04N1/407
Filed: 1975-10-24
Granted: 1979-02-06
Abstract: AN AMPLIFIER FOR USE IN A DOCUMENT SCANNING SYSTEM               ABSTRACT OF THE DISCLOSURE           A video amplifier for use in a document scanning system to provide signals representative of the information content of a scanned document.  The amplifier includes an automatic background control portion and an automatic black level akjustment portion to maintain the integrity of the output voltage range independent of the background of the scanned document and throughout the period of time required to scan the entire document.  In addition, circuitry is provided for varying the time constant of the automatic background control circuitry to make that circuitry respond quickly to changes of the background toward the "white" direction.  Further, the normally white platen back is provided with a gray leading edge to prevent the automatic background control circuitry from being upset by initial runs of white in the event of an imperfectly registered non-white document.
Patent CA-1086951-A (CA)
Inventor: ALBRIGHT CHARLES W
IPC: C10J3/54
Filed: 1975-12-18
Granted: 1980-10-07
Abstract: ABSTRACT OF THE DISCLOSURE     A fluidized stream of coal particles is introduced into the bottom of a vertical reaction zone in a fluidized bed process at a high velocity in a vertically upwards direction, wherein agglomeration of the fluidized bet is prevented.
Patent CA-1065994-A (CA)
Inventor: WITSCHARD GILBERT
IPC: C08F2/02
Filed: 1975-12-30
Granted: 1979-11-06
Abstract: ABSTRACT OF THE DISCLOSURE   Vinyl halide homopolymers, copolymers and graft polymers of substan-tially lower molecular weight are obtained when polymerization is carried out in the presence of an organotin mercaptide ester and an organic azo initiator.  The products are faster fusing and have lower melt viscosities than corresponding polymers of the same molecular weight prepared by high temperature molecular weight reduction methods.  The low molecular weight and excellent fusion characteristics of the products render these polymers particularly useful an molding, extrusion. and coating applications.
Patent CA-1054138-A (CA)
Inventor: CROW MORGAN L
IPC: F04F5/46
Filed: 1976-01-30
Granted: 1979-05-08
Abstract: EDUCTOR APPARATUS HAVING AN ANNULAR VENTURI NOZZLE FOR VACUUM CIRCULATION IN DRILLING SYSTEM     Abstract of the Disclosure.  A drill system uses double walled concentric pipe and a drill bit attached at one end of the drill pipe and a power swivel at its upper end having means for applying compressed air to the outer annulus within the drill pipe and means for attaching a vacuum line to the center annulus of the drill pipe.  A flexible hose attached to the vacuum portion of the drill pipe has an  eductor assembly using compressed air to create a vacuum to remove the cuttings during the drilling operation. The  eductor assembly includes an annulus nozzle surrounding a straight-through bore providing an obstruction-free passage for induced air and drill cuttings.  Motivating air flowing through the nozzle passes through flow restriction, then diverging diffuser, to accelerate air to supersonic velocity. A diverting valve, havings its input connected to pressurized air from an air compressor, has one output connected to the input of the inductor and its other output connected to the outer annulus portion of the drill pipe.  The diverter valve provides the operator the ability to pressure reverse circulate, to vacuum reverse circulate, or an infinitely variable combina-tion of the two.
Patent CA-1084560-A (CA)
Inventor: BLOMBERG FOLKE I
IPC: B60T8/32
Filed: 1976-02-18
Granted: 1980-08-26
Abstract: BRAKE APPARATUS AND METHOD     Abstract of the Disclosure An apparatus and method for braking a rotating member in which braking force for retarding rotation of the rotating member is transmitted through an arrangement including a mechanical linkage and a fluid pressure cylinder while a sensor detects the rate of retardation of the rotating member and signals the occurrence of a rate of retardation in excess of a pre-determined rate.  In accordance with the present invention, relieving force opposing the braking force is applied to the mechanical linkage in response to a signalled excessive rate of retardation, thereby relieving the braking force otherwise retarding rotation of the member.
Patent CA-1083596-A (CA)
Inventor: BOTTACCIO GIORGIO
IPC: C07C51/00
Filed: 1976-03-23
Granted: 1980-08-12
Abstract: Abstract of the Disclosure A process is disclosed for the carboxylation of organic substrates or reactions containing at least one active hydrogen atom and selected from the group consisting of ketones, esters, nitroparaffins and nitriles, by reaction with CO2 and alkaline phenates in an organic medium. The reaction is conducted in the presence of an alkaline phenate having the general formula:                         wherein R is hydrogen, a linear or branched alkyl or alkoxy group having up to 20 carbon atoms or a phenyl group, n varies from 1 to 5 and M is Li, Na or K, at a  temperature between about 40° and 60°C and in an aprotic medium which is at least a partial solvent for the phenate and is selected from the group consisting of tetrahydrofurane, dioxane, tetrahydropyran, ethyl acetate, propylenecarbonate, triethylamine, N-methylmorpholine, a picoline, a lutidine, 2-methyl-5-ethyl-pyridine and sulpholane. The advantages afforded by the process of the invention in comparison with the prior art are much higher conversions and selectivity, greater solubilities of the reactant (and, thus, lower reaction volumes), absence of condensation by-products of the substrate or reactant, and the possibility of using phenates of lower cost compared to hindered phenates.
Patent CA-1074452-A (CA)
Inventor: BACHMAN CHARLES W
IPC: G06F9/46
Filed: 1976-05-12
Granted: 1980-03-25
Abstract: ABSTRACT        Two of a series of hardware/firmware primitives are disclosed for converting a general purpose digital computer into a database machine.  The invention comprises two hardware/ firmware implemented machine instructions which both fetch a set descriptor, which along with a base register BR, allow access to a record.  For the Test Set Empty operation, the record accessed is an owner record and a check is made to see whether the set has nay member records currently associated with it.  For the Test Member Inserted operation, the record accessed is checked to see whether it is currently inserted as a member of a particular set (i.e., a part of that set).
Patent CA-1051690-A (CA)
Inventor: STEINE HANS T
IPC: C22C9/04
Filed: 1976-07-20
Granted: 1979-04-03
Abstract: Abstract of Disclosure A filler metal composition and method are provided for producing strong brazed joints between metal parts, e.g. steel parts, assembled in joint-forming relationship with each other, the filler metal comprising an indium-containing, low silver, copper base brazing alloy consisting essentially by weight of about 0.5%. to 15% Ag, about 1% to 14% In, about 50% to 85% Cu, up to about 0.6% Si and the balance essentially zinc.
Patent CA-1068560-A (CA)
Inventor: AHRENDT WILLIAM A
IPC: C23F15/00
Filed: 1976-09-02
Granted: 1979-12-25
Abstract: SPECIFICATION            WILLIAM A. AHRENDT DAVID C. MEISSNER          METHOD OF INHIBITING RUSTING OF SPONGE IRON                    ABSTRACT OF THE DISCLOSURE          A method for inhibiting rusting of sponge iron or any form of directly reduced iron when contacted by air, water, or other oxidant, by treating the sponge iron with a water soluble alkali metal silicate solution.  The resulting product, a sodium silicate treated, rust-resistant metallized iron pellet, is also disclosed.
Patent CA-1066283-A (CA)
Inventor: GRANADOS JARQUE RICARDO
IPC: C07D495/02
Filed: 1976-09-17
Granted: 1979-11-13
Abstract: ABSTRACT OF THE DISCLOSURE         As novel industrial products, 2,5-dimethyl-thieno-[3,2-f]-morphan (I), 2-thienyl-(4-methyl-2-pyridyl)-ketone (II), 2-(2-thenyl)-4-methyl-pyridine (III), 2-(2-thenyl)-1,4-di-methyl-1,2,3,6-tetrahydro-pyridine (V), 2-(2-thenyl)-1,4-dimethyl-1,2,5,6-tetrahydropyridine (VI), the pharmacologically acceptable acid addition salts thereof, for example, the hydro-chlorides and 2-(2-thenyl)-1,4-dimethyl-pyridinium bromide (IV).          Their process of production.  These products have good analgesic activity.
Patent CA-1073682-A (CA)
Inventor: STEPHENS FRANK M JR
IPC: C22B15/00
Filed: 1976-09-21
Granted: 1980-03-18
Abstract: FLUIDIZED HYDROGEN REDUCTION PROCESS      FOR THE RECOVERY OF COPPER                           ABSTRACT         Copper is recovered from copper salts, e.g. cuprous chloride, by means of a process comprising reducing the copper salts with hydrogen in a fluidized bed in the presence of chemically inert, generally spherical, relatively smooth, non-porous particles in order to restrain sintering of the reduced copper.
Patent CA-1048914-A (CA)
Inventor: ABE MICHIO
IPC: F16B39/24
Filed: 1976-10-26
Granted: 1979-02-20
Abstract: Abstract of the Disclosure A conical spring washer is constituted by a conical spring washer body, a plurality of spaced lock pawls extending downward from the lower contacting surface of the body, and each of the lock pawls having a gradually sloped face in the tightening direction of a nut or the head of a bolt and a sharply sloped face in the loosening direction of said nut or bolt head.
Patent CA-1066087-A (CA)
Inventor: RIEGLER ERNST
IPC: C21C5/50
Filed: 1976-12-01
Granted: 1979-11-13
Abstract: Abstract of the Disclosure A tilting drive arrangement for a converter comprises gearing within a gear housing arranged on a tilting trunnion of the machine and a torque-resisting support which is attached to the gear housing and to a fixed base, and n measuring device for measuring torsional moments generated in the gearing, the measuring device being arranged in the torque-resisting support between the base and the gear housing.  Additionally, an interrup-tion switch is provided and this interrupts the action of the tilting drive when the torsional moments exceeds a specified maximum value.  The inter-ruption switch is under control of the measuring device.
Patent CA-1056413-A (CA)
Title: Door actuating mechanisms
Inventor: NEWSON JOHN C
IPC: B61D19/00
Filed: 1976-12-08
Granted: 1979-06-12
Abstract: ABSTRACT       A door actuating mechanism is provided for a sliding door, the mechanism including an electric motor which drives an arm through a gear box the arm being coupled via a linkage to a point on the door and the linkage is such as to incorporate pivot means which is movable along a guideway, the pivot means being resiliently biassed towards one end of the guideway to permit movement along the guideway of the pivot means in the event of the door encountering an obstruction in its path towards the closed position.
Patent CA-1064795-A (CA)
Inventor: JUERGENS DAVID A
IPC: B42F7/12
Filed: 1977-01-21
Granted: 1979-10-23
Abstract: ABSTRACT           A tiered letter tray comprising at least two trays de-tachably stacked one upon another by rectangular plastic riser plates and a vertical file comprising at least one L-shaped trough having means at one side of its base for selective attach-ment to the side of the bottom letter tray, said trough adapted at the other side of its base for selective attachment to one side of a like trough, and an end cap adapted for selective attachment to said one side of the base for using said trough detached from said letter tray.
Patent CA-1088517-A (CA)
Inventor: BREUER HERMANN
IPC: C07D501/36
Filed: 1977-02-15
Granted: 1980-10-28
Abstract: ABSTRACT          L-Isomer compounds of the formula   wherein R1 is phenyl, thienyl or furyl; R4 represents certain heterocyclic qroups; R3 is hydrogen, lower alkyl, phenyl-lower alkyl, substituted phenyl-lower alkyl, diphenyl-lower alkyl, tri(lower alkyl)stannyl, tri(lower alkyl)silyl, a salt forming ion, or the group -CH2-O-?-R wherein R is lower alkyl, phenyl, phenyl-lower alkyl, or substituted phenyl and phenyl-lower alkyl are disclosed.  These compounds are useful as antibacterial agents.
Patent CA-1061303-A (CA)
Inventor: GARBERICK THAYNE K
IPC: F24F12/00
Filed: 1977-03-02
Granted: 1979-08-28
Abstract: HEAT RECORVERY APPARATUS                  Abstract of the Disclosure A heat recovery apparatus in which an exhaust gas section and a fresh air section are disposed in side-by-side relationship to form an integral unit, for recovering heat from a stack or flue and discharging fresh air into a space to be heated.  Heat pipe units extend from the hot gas passage of one section into the fresh air passage of the other section to transfer the heat between the two pas-sages, the air flow in the exhaust gas section being in a series flow relationship and the flow in the fresh air section being in a parallel flow relationship.  Louvers are provided for controlling the flow of exhaust gases and fresh air through the respective passages, and blowers are used to force the exhaust gasses and fresh air through the passages.  The passages of each section are provided with a main and by-pass passages controlled by louvers which are used to regulate the heat recovery and output of the unit.   1.
Patent CA-1051244-A (CA)
Title: Method of treating a continuous web of wood or cellulose pulp and apparatus for carrying out the method
Inventor: JOHNSEN OYSTEIN
IPC: D21C9/18
Filed: 1977-03-30
Granted: 1979-03-27
Abstract: ABSTRACT OF THE DISCLOSURE     A continuous web of wood or cellulose pulp leaving a dewatering apparatus such as a suction mould or vat machine and having a relatively high content of water, is slitted in two or more longitudinal webs of approximately the same width.  The narrow, slitted webs are turned so as to be parallel and brought together or gathered to a multilayer web which is narrower and thicker than the original web.  This multilayer web is subjected to further dewatering in one or more pressing machines having dimensions adapted to those of the multilayer web.  Finally, the multilayer web is cut transversely into sheets of appropriate size for stacking and packing in bales of suitable size.
Patent CA-1091505-A (CA)
Inventor: HARRISON HENRY
IPC: B65H5/02
Filed: 1977-04-21
Granted: 1980-12-16
Abstract: Abstract of the Disclosure An adapter to connect first and second printing press frames in tandem. First and second support members are mounted on the first printing press frame.  A curved plate is mounted on said first support member, and bridges the gap between the output of a first printing press and the input of a second printing press.  An endless belt is mounted on the second support member over said curved plate and runs in contact with the curved plate.  The first and second printing press frames are adjustably connected together.  The belt is driven at substantially the same linear speed as the linear paper feed speed of the printing presses, whereby papers are delivered from one printing press and inserted between the belt and the plate and delivered to the other printing press.
Patent CA-1078948-A (CA)
Title: Method of fabricating silicon photodiodes
Inventor: HARTMAN ADRIAN R
IPC: H01L29/864
Filed: 1977-06-28
Granted: 1980-06-03
Abstract: METHOD OF FABRICATING SILICON PHOTODIODES            Abstract of the Disclosure Described is a method of fabricating front-illuminated silicon photodiodes having high quantum efficiency, a short response time, (high gain and low excess noise in the case of avalanche diodes), low dark currents and good reliability.  In the fabrication of an n+-p-.pi.-p+  APD the method includes the steps of:  (1) epitaxially growing a high resistivity .pi.-type silicon layer on a high conduc-tivity p-type silicon substrate; (2) forming an n-type guard ring in the .pi.-layer; (3) forming a p-type channel stop around the guard ring; (4) forming in the .pi.-layer a p-layer by ion implantation and by driving in the implanted ions by heating in a suitable atmosphere; (5) masking the p-layer and introducing phosphorus into the backside to getter defects and/or impurities; (6) ramping the furnace temperature during steps (2) through (5) to reduce crystalline defects; (7) forming a thin n+-layer in the p-layer; (8) forming an anti-reflection and passivation coating on the n+-layer; and (9) forming electrical contacts to the substrate, the guard ring and the channel stop so that the latter two contacts overlap the surface portions of the corresponding metallurgical junctions.  The n+-layer is made extremely thin in order to reduce hole injection caused by light incident on that layer, and the ion implantation - drive step (4) and subsequent steps which involve heating are mutually adapted so that the resultant electric field profile in the multiplication region (p-layer) is substantially triangular.  A similar process, which omits step (4), is also described for the fabrication of n+-.pi.-p+ photodiodes.
Patent CA-1058669-A (CA)
Inventor: MILLER LARRY E
IPC: B62D55/26
Filed: 1977-07-12
Granted: 1979-07-17
Abstract: ABSTRACT OF THE DISCLOSURE      A combination low ground pressure, low turning resistance, and self-cleaning shoe for an articulated endless track used on track-type vehicles is disclosed.  The shoe is formed as a rigid body having a sloping forward planar surface and a sloping rear-ward surface which each run the length of the shoe and which sub-stantially converge toward each other.  Projecting from between the forward and rearward surfaces is a third surface, or traction lug.  High-floatation planar bearing surfaces are located on each end of the body and each have a portion adjacent to, and of the same width as the traction lug but increase in width with increas-ing distance from the lug.
Patent CA-1074172-A (CA)
Inventor: POGGEMILLER ERHARD
IPC: A01B61/04
Filed: 1977-09-19
Granted: 1980-03-25
Abstract: ABSTRACT OF THE DISCLOSURE          A cultivating implement such as a discer is provi-ded with a coulter disc engageable with the ground and secu-red to the tail beam with the depth being preset by the hy-draulic setting of the main disc gang.  A fluid operator is included at a preset pressure and normally is fully extended until an obstruction is reached at which time the preset pressure is exceeded and the fluid operator or ram unloads and allows the coulter to raise up and clear the obstruction.          Once cleared, the pressure in the ram returns the coulter to the preset depth.  This coulter assists in maintaining the angle of travel of the discer, particularly on side hills, together with the pivoted rudder wheel assembly.  In this invention the rudder wheel assembly is normally held against a stop at the desired angle, by a further ram or fluid opera-tor instead of a spring and which only unloads during turning to allow rudder wheel assembly to break away.  The use of a ram overcomes the usual difficulties associated with springs in which little or no resistance is encountered at the begin-ning of the extension of the spring.
Patent CA-1077984-A (CA)
Inventor: TELA CHARLES T SR
IPC: A63F5/00
Filed: 1977-12-19
Granted: 1980-05-20
Abstract: ABSTRACT OF THE DISCLOSURE   A modern roulette game having a unique and novel modern layout of groups of numerals on the chart alongside of the roulette wheel and base com-bined with the addition of small numerals concentrically inwardly of the con-ventional numerals on the roulette wheel with the small numerals being oriented in relation to the original parent numerals in a manner to enable modern roulette to be played.  In the modern roulette layout, the thirty-six numbers are not arranged in consecutive fashion as in the conventional roulette layout but rather are arranged in groups of four numbers per group with there being nine groups with each of the nine groups containing two numbers that are oven and two numbers that are odd, and four of the groups contain small red numbers and four groups contain all black numbers with the number one group including half red numbers and half black numbers.  Small numerals on the roulette wheel inwardly of the parent numerals indicate the group in which the parent numeral falls in the layout.  The base for the roulette game is provided with unique leveling legs and a level indicating structure is provided on the base for assuring proper rotation of the roulette wheel.
Patent CA-1088761-A (CA)
Inventor: ALLELY ROBERT
IPC: A01D34/66
Filed: 1978-01-05
Granted: 1980-11-04
Abstract: ABSTRACT           Agricultural mower has vertical axis crop-cutting rotors mounted for floating vertical movement relative to semi-mounted mower frame.  Draught forces are transmitted to each rotor through a draught member below the rotor on which the rotor is journalled.  The draught member projects rearwards beyond the cutting circle of the blades and is connected to the frame by an upwardly-extending structure including a parallelogram linkage.
Patent CA-1118335-A (CA)
Inventor: BLUNDELL KENNETH
IPC: F16L59/14
Filed: 1978-01-26
Granted: 1982-02-16
Abstract: ABSTRACT OF THE DISCLOSURE     Pipe insulation is disclosed made up of right cylindrical elements, or washers, held together by a flexible coating and in which the fibres are aligned in planes perpendicular to the cylindrical axis.  The elements have central bores to receive pipes to be lagged. The elements have excellent axial compressibility and can therefore be used around bends in pipes without cutting.
Patent CA-1085187-A (CA)
Inventor: PERFECT FREDERICK H
IPC: C22C30/00
Filed: 1978-03-09
Granted: 1980-09-09
Abstract: Molybdenum-Titanium-Zirconium-Aluminum Master Alloys Abstract of the Disclosure:       This invention relates to molybdenum-titanium-zirconium-aluminum master alloys containing about 35 to 40% molybdenum, about 1 to 5% titanium, about 15 to 25% zirconium, balance aluminum and not more than about 0.004% nitrogen.
Patent CA-1074583-A (CA)
Title: Dispositif d'ancrage sur le sol sous-marin
Inventor: CAPDEBOSCQ ANDRE
IPC: B63B21/26
Filed: 1978-03-17
Granted: 1980-04-01
Abstract: Dispositif d'ancrage sur le sol sous-marin pour au moins une ligne d'ancrage.  Ce dispositif comporte une plaque maintenue appliquée sur le sol sous-marin par au moins un pieu la traversant, et munie d'au moins un moyen de connexion pour une ligne d'ancrage.  Un tel dispositif de grande fiabilité et dont l'entretien est aisé permet une grande variété d'utilisations pour l'ancrage des engins flottants ou semi submersibles servant au forage et à la mise en production des champs d'hydrocarbures en mer.
Patent CA-1085664-A (CA)
Inventor: BARTH GUNTER
IPC: E01C19/52
Filed: 1978-03-23
Granted: 1980-09-16
Abstract: Abstract of the disclosure A method of producing a ground covering from individual paving stones provides for the following steps: Arranging a group of individual paving stones in the form of a section of the ground covering to be produced, grasping the group by means of lateral compressive force from two opposed sides leaving out the lower range of the paving stones in laid condition, hoisting and moving the group thus grasped to the place of laying, and depositing the group there. The vertical distribution of said compressive force is so selected that it is greater in the lower range of grasp than in the upper range of grasp.           An apparatus for carrying out this method comprises a laying vehicle which carries a gripping tongs, the gripping faces of which are movable at least vertically by a means of the laying vehicle and are formed by linings diverging from the bottom to the top.
Patent CA-1098548-A (CA)
Inventor: RAO V DURGA N
IPC: C03C10/00
Filed: 1978-05-24
Granted: 1981-03-31
Abstract: CRYSTALLINE ADDITIVE FOR MAGNESIUM         ALUMINA SILICATE                   ABSTRACT OF THE DISCLOSURE       A  micro-crystalline material and method for making the same wherein a vitreous material known as magnesium aluminum silicate or cordierite glass is caused to undergo a high temperature solid state conversion to a crystalline material and wherein the crystallization is catalyzed by using a nucleating agent on the surface of the base material to trigger microscopic grain formation, the base material that is used being in the form of a fine frit or powder.