baber/WOPTO huggingface dataset:
Patent CA-1183042-A (CA)
Title: Kinetic-energy projectile with a stack-shaped pre-  penetrator
Inventor: WALLOW PETER
IPC: F42B12/06
Filed: 1981-03-26
Granted: 1985-02-26
Abstract: ABSTRACT A kinetic-energy projectile or penetrator has a large length/diameter ratio and high density.  A forward pre-penetrator with a nose is connected at the rear to the main penetrator, and at least the pre-penetrator is designed as a stack of sectional cores of predetermined sizes, each having on the side facing the nose at least one sharp cutting edge, according to length and/or material of the sectional cores.  The projectile has at least in the respective connecting areas predetermined breaking points guaranteeing centering and/or fixing.  The projectile also has means allowing exchange, or covering, as well as a purposeful break or separation of the sectional cores at a prespecified breaking strength.  The sectional cores have a prespecified structure over their length and/or their cross-section.
Patent CA-1143349-A (CA)
Inventor: SLIKAS ANTHONY W
IPC: B02C13/28
Filed: 1981-03-31
Granted: 1983-03-22
Abstract: Improved Ring Hammer Abstract A ring hammer (10) is disclosed for use in material reduction apparatus such as a coal granulator, the ring hammer including a substantially circular body (12) having a plurality of circumferentially spaced radially projecting teeth (22) joined by a corresponding plurality of connecting segments (30).  The teeth and connecting segments taper inwardly (26, 32) from their outermost surfaces (24, 34) toward the axial ends (28) of the hammer, the taper of the connecting segments being sig-nificantly larger than that of the teeth.  This geometry facilitates manufacture of the hammer by forging and insures the presence of tooth-like projections on the hammer even when the outer surfaces of the teeth have worn down to the level of the connecting segments.
Patent CA-1155383-A (CA)
Inventor: EDEL HANS J
IPC: A47C3/18
Filed: 1981-06-30
Granted: 1983-10-18
Abstract: Abstract of the Disclosure A swivel chair of the type comprising a seat which is supported at an elevated position above a base for swiveling motion relative to the base, and which has a foot support disposed between the base and seat for aiding a user of the chair to ascend to the elevated seat, is provided with clamping elements that are responsive to foot pressure applied to the foot support for preventing swiveling motion of the seat relative to the base when such foot pressure in excess of a predetermined amount is applied.  The clamping elements preferably comprise an inclined surface on a bracket that pivotally supports the foot support, and a wedge-shaped element that is disposed between the inclined surface and the pillar of the swivel chair for axial displacement in response to pivotal motion of the foot support resulting from the ap-plication of foot pressure thereto.
Patent CA-1163040-A (CA)
Inventor: DABI SHMUEL
IPC: C08G18/12
Filed: 1981-08-04
Granted: 1984-02-28
Abstract: ABSTRACT OF THE DISCLOSURE           A stable aqueous dispersion latex of a room tempera-ture curing polyurethane forming films resistant to water and organic solvents is disclosed, the polyurethane containing units derived from melamine, in addition to units derived from diisocyanate and difunctional reactants, in the polymer chain, pendant water-dispersing carboxylic salt groups, and room temperature curable and cross-linking N-methylol hydrazide terminii, and methods for making such dispersion.
Patent CA-1172146-A (CA)
Inventor: CISZEK THEODORE F
IPC: C30B15/34
Filed: 1981-08-05
Granted: 1984-08-07
Abstract: METHOD AND APPARATUS FOR DRAWING          MONOCRYSTALLINE RIBBON FROM A MELT                 ABSTRACT OF THE DISCLOSURE      A method and apparatus for drawing a monocrystalline ribbon or web from a melt comprising utilizing a shaping die including at least two elements spaced one from the other each having a portion thereof located below the level of the melt and another portion located above the level of the melt a distance sufficient to form a raised meniscus of melt about the corresponding element.
Patent CA-1176547-A (CA)
Inventor: ROBERGE RAYMOND P
IPC: C23C8/22
Filed: 1981-08-06
Granted: 1984-10-23
Abstract: 12,872 Process for Carburizing Steel Abstract of the Disclosure In a process for carburizing steel parts in a furnace having one or more temperature zones at a carburizing temperature in the range of about 1500°F to about 2200°F in a carburizing atmosphere comprising   said percent by volume being based on the total volume of the atmosphere, wherein it is desired to shut down the carburizing process for a predetermined period of time without removing the parts, which have not achieved 100 percent carburization, from the furnace, the improvement comprising the following steps:             (a)  introducing parts, which would not achieve 100 percent carburization prior to the shut down of the carburizing process, into the furnace;             (b)  determining the temperature (Tc,s) for each temperature zone at about which the parts introduced in step (a) are to be maintained in step (c) according to the following formula:                        wherein 12,872   teq,susp being allocated to at least one temperature zone R = gas constant Q = activation energy for carbon diffusion in austenite ln = natural log tn = carburizing time ti = time at beginning of shutdown ta,c = time during cooling at which T = Ta ta,h = time during heating at which T = Ta tf = time at end of shutdown at which T = Tc,s Tn = carburizing temperature T  = temperature during cooling and heating, a function of time, t Ta = austenitic transformation temperature, provided that Tc,s is no less than about 1400°F or the austenitic transformation temperature of the steel, whichever is the greater;             (c)  maintaining the parts in the carburizing atmosphere in at least one of the temperature zones for the period of time, which would be necessary to achieve about 1 to about 99 percent carburization at the carburizing temperature, each of said temperature zones being at the temperature determined in step (b) for that temperature zone;             (d)  reducing the amount of the hydrocarbon component of the atmosphere;             (e)  gradually lowering the temperature from the level of step (c) to a predetermined level, less than about 1400°F;             (f) during step (e), but before the temperature reaches about 1400°F, changing the atmosphere to one comprising an inert atmosphere;     12,872 (g)  maintaining the parts in the atmosphere, which is the result of step (f), for the predetermined period of time;   (h)  after the predetermined period of time expires, heating the furnace to a temperature in the range of about 1400°F to about 1500°F;     (i)  changing the atmosphere to the carburizing atmosphere;             (j)  raising the temperature in each zone to about the temperature determined in step (b);             (k)  maintaining the parts at the temperature of step (j) for the period of time necessary to bring the carburization initiated in step (c) to about 100 percent carburization; and (l)  removing the parts from the furnace.                   S P E C I F I C A T I O N
Patent CA-1158341-A (CA)
Inventor: BRUM JERRY W
IPC: B62D1/28
Filed: 1981-08-18
Granted: 1983-12-06
Abstract: ELECTRONIC TRACTOR GUIDANCE SYSTEM                           ABSTRACT      An automatic tractor guidance system for controlling the steering of a tractor to follow a previously plowed furrow is disclosed.  A furrow follower is provided with a sensor for sensing the direction of the path relative to the direction of travel of the tractor.  The steering direction of  the tractor  is likewise sensed.   The two sensor signals are combined and compared to a convergence frequency  signal  to produce a digital control signal. Each logic state of the control signal effects a turn in the steering of the tractor,  right then left.   If the duty cycle of  the control signal  is  50%,  no net turn either right or left is effected.  However, when the duty cycle deviates from 50%, a net rotation in one direction or the other will occur depending on which logic state of the digital signal occurs for a longer portion of each cycle of the control signal.  Also provided is an offset adjustment  to  adjust  the  steering  direction  of  the tractor to compensate for forces acting on the tractor which  tend  to  change  the  direction of  travel  of  the tractor without an accompanying steering control change.
Patent CA-1139516-A (CA)
Inventor: PATIL ULHAS S
IPC: B65D90/00
Filed: 1981-09-03
Granted: 1983-01-18
Abstract: Abstract of the Disclosure .         A spill condition venting system for a double containment tank includes a control system for controlling, in the event of a spill or an overflow of fluid into the annulus of such double containment tank, the flow of stored fluid into and out of the annulus and for controlling vapor resulting from such spill.
Patent CA-1186755-A (CA)
Inventor: NOWELL JOHN R
IPC: H03K3/017
Filed: 1981-09-25
Granted: 1985-05-07
Abstract: ABSTRACT OF THE DISCLOSURE   A voltage controlled oscillator having an  operational amplifier connected to receive a known  voltage from a reference  voltage source and the output of a switching  regulator circuit.   The operational  amplifier provides an output signal which is  utilized after  amplification by a transistor as an input to the resistive  input of a current  mirror of a pulse width modula-tor.  The  pulse width  modulator is  capable of providing  a digital pulse stream as  an output  having a  frequency in the range of  0 to 400 KHz in response to the output of the operational amplifier.
Patent CA-1175062-A (CA)
Inventor: BELLIS HAROLD E
IPC: C07C231/00
Filed: 1981-10-01
Granted: 1984-09-25
Abstract: TITLE                        Method for Deactivating Catalyst in Preparation of Dimethylformamide from Dimethylamine and Carbon Monoxide ABSTRACT OF THE DISCLOSURE           The alkali metal methylate catalyst used in the catalytic preparation of dimethylformamide from dimethylamine and carbon monoxide is deactivated by bringing it into contact with an alkyl formate.
Patent CA-1180605-A (CA)
Title: Boats
Inventor: ANDERSON IAN L
IPC: B63H9/04
Filed: 1981-10-06
Granted: 1985-01-08
Abstract: ABSTRACT OF THE DISCLOSURE      A sailing boat having a variable hull configuration comprising hull portions approximately amidships that are comparatively flat and comparatively horizontal, aft from which the hull narrows and steepens and sweeps to the waterline, and a pair of displaceable surfaces located in the aft hull portion, the surfaces being moveable between extended and retracted positions about hinge lines extending from points adjacent the stern near the centre line outwards and forwards to points near the water line, said hull having a first configuration in which the surfaces are in their retracted positions so that the hull forms a displacement hull, and a second configuration in which the surfaces are in their extended positions and cooperate with the comparatively flat and comparatively horizontal amidships portions to form planing surfaces for the hull.
Patent CA-1172166-A (CA)
Inventor: UEMURA YAHIRO
IPC: A61K39/395
Filed: 1981-10-26
Granted: 1984-08-07
Abstract: ABSTRACT OF THE DISCLOSURE         A process for preparing immunoglobulin suitable for intravenous injection, comprising treating with an acid a plasma or fraction I+II+III, fraction II+III, fraction II, or fraction III (hereinafter these are sometimes referred collectively to as starting material) obtained from plasma by Cohn's cold alcohol fractionation method, and subjecting to fractionation using an alkylene oxide polymer or copolymer having a molecular weight of 2,000 to 20,000.
Patent CA-1165977-A (CA)
Inventor: LEVEQUE ALAIN
IPC: C22B58/00
Filed: 1981-12-04
Granted: 1984-04-24
Abstract: Highly pure (>99.99%) aqueous solutions of gallium chloride are obtained by a process having two major stages. The first stage, effected by passage of an aqueous acid solution containing gallium over a strongly basic ion exchange resin, makes it possible to eliminate an appreciable quantity of metal ions, such as Ca, Mg, Cr, V, Co, Zn and Pb, and further serves to concentrate the initial solution. In the second stage, the remaining ions, such as Al, Na and particularly Fe+++ are eliminated by a two-phase extraction with an organic extractant, preferably a C4 to C10 alcohol or a quaternary ammonium chloride.
Patent CA-1167285-A (CA)
Inventor: EBNER OTTO A
IPC: F16D43/04
Filed: 1981-12-21
Granted: 1984-05-15
Abstract: ABSTRACT           The invention is concerned with a road-speed related shift-lock for gear-trains, for preventing engagement of a reverse gear in a motor-vehicle gearbox when the vehicle is moving at a speed higher than a predetermined speed and in the forward direction, the reverse-gear comprising a coupling element which is secured against rotation relative thereto and has external teeth adapted to engage internal teeth of a sliding sleeve upon the engagement of the reverse-gear.  The shift-lock according to the invention is characterized in that a locking ring is arranged between the reverse-gear  and the coupling element, the locking ring comprising two half-shells held together by a spring substantially encompassing the half-shells.  Each half-shell comprises on a side facing the coupling element a locking lug provided with  an annular surface and a chamfer which define a step.  The coupling element has in its periphery axial recesses adapted to receive the respective locking lugs of the half shells and the sliding sleeve has an internal bore and a chamfer extending parallel to the chamfer of the locking lug.  When the vehicle moves at a speed higher than the predetermined speed, centrifugal forces cause the half-shells to move radially outwardly against the retaining force exerted by the spring such that the internal bore of the sleeve slides over the annular surface of the locking lug until the chamfer of the sleeve abuts against the chamfer of the locking lug, thereby preventing further movement of the sleeve and thus engagement of the internal teeth of the sleeve with the external teeth of the coupling element.
Patent CA-1181117-A (CA)
Inventor: NATHENSON RICHARD D
IPC: H02K3/46
Filed: 1982-01-07
Granted: 1985-01-15
Abstract: ABSTRACT OF THE DISCLOSURE         A stator coil support structure is provided that comprises both a generally rigid, non-conductive structure for encasing the spiral pancake coils of a dynamoelectirc machine  and  generally  flexible,  non-conductive  support means disposed adjacent each turn of the pancake coils between each turn and its adjacent portion of the gener-ally rigid structure.  The structure provides support for the stator coil structure while permitting a slight move-ment of each pancake coil turn to prevent excessive strain on the coil turns.
Patent CA-1176594-A (CA)
Inventor: VAN LAAR JACOBUS
IPC: C10B29/08
Filed: 1982-01-18
Granted: 1984-10-23
Abstract: ABSTRACT OF THE DISCLOSURE        A coke oven battery has a continuous roof and uprights at each of the pusher and coke sides.  The uprights are connected by ties extending through pipes embedded in the roof.  To provide cooling for the ties, a massive metal cooling member extends upwardly from each pipe to the upper side of the roof, to conduct heat away from the pipe.  The cooling member may contain a chamber forming an evaporation cooling system.
Patent CA-1181138-A (CA)
Inventor: BLAUSCHILD ROBERT A
IPC: H03F3/45
Filed: 1982-02-11
Granted: 1985-01-15
Abstract: ABSTRACT:            A transconductance amplifier includes a differential transconductance amplifier stage and a differential correction amplifier stage. In order to achieve substantially linear operation over a wide dynamic range, the effects of nonlinear-ities in the transconductance amplifier stage are substantially cancelled by the effects of nonlinearities in the correction amplifier stage.  This is accomplished by cross-coupling the two stages and establishing the relative gain of the correction amplifier stage with respect to the transconductance amplifier stage such that the desired cancellation occurs. In a preferred embodiment, optimum cancellation occurs when the gain of the correction amplifier stage is substantially one-half the gain of the  transconductance amplifier stage.
Patent CA-1219500-A (CA)
Inventor: EIERMANN HORST W
IPC: H02G3/04
Filed: 1982-04-15
Granted: 1987-03-24
Abstract: ABSTRACT                 FIRE PROTECTION COVERING This fire protection covering is used for the protection of heat-sensitive parts, particularly for the protection of electric cables in petro-chemical plants. It comprises rigid, self-supporting mineral wool components (1, 4) having a fireproof coating, at least on their outside. In the case of a fire, the electric cables can remain in operation for a sufficiently long time
Patent CA-1183033-A (CA)
Inventor: HASHIMOTO KEN
IPC: G03G9/087
Filed: 1982-05-14
Granted: 1985-02-26
Abstract: ABSTRACT OF THE DISCLOSURE         A developer composition is disclosed which is characterized by containing two binding resinous materials (A) and (B).  The material (A) is a resinous material having a polar functional group and a glass transition temperature below 0°C.  The material (B) is a resinous material having a glass transition temperature higher than 40°C.  The material (B) is incompatible with the material (A).  Material (B) has a polar functional group capable of interacting with the polar functional group of material (A).  The developer may also contain a fine magnetic powder in an amount of 20 to 80% by weight based on the total weight of the developer composition.  The developer composition can be used to form clear images which remain clear even after repeated opera-tion within a copying device.  Furthermore, the images formed are securely fixed and can not be wipped off or removed easily.
Patent CA-1185050-A (CA)
Inventor: IWABUCHI TAKESHI
IPC: C08F4/62
Filed: 1982-06-21
Granted: 1985-04-02
Abstract: ABSTRACT OF THE DISCLOSURE         Polymeriztion of ethylene or copolymerization of ethylene with other .alpha.-olefin is carried out in the presence of a specific catalyst system. The catalyst system is obtained by preparing a reaction product (A) of an organic aluminum compound (I) represented by the formula AlR?X3-n where R1 is hydrogen or an alkyl group having from 1 to 10 carbon atoms, X is Cl or Br and n is a number satisfying 0<n<3, with a mixture of a straight chain aliphatic alcohol and branched chain aliphatic alcohol or a cyclic alcohol, separately preparing a reaction product (B) of an organic magnesium compound with a hydropolysiloxane or an silicone compound in which organic groups and hydroxyl groups are bonded to silicon atoms, reacting the reaction product (A) with the reaction product (B) to produce a reaction product (C), reacting the reaction product (C) with a halogen-containing titanium or vanadium compound to obtain a solid product (D) and mixing the solid product (D) with an organic aluminum compound (II).
Patent CA-1169264-A (CA)
Inventor: ANDERSON JONATHAN R
IPC: A01N37/10
Filed: 1982-06-24
Granted: 1984-06-19
Abstract: ABSTRACT     A method of controlling wild proso millet in an area of crop growth, which comprises incorporating in the soil of said area a combination of (a) N-ethyl-N-(2-methyl-allyl)-2,6-dinitro-4-trifluoromethylaniline (ethalfluralin) and/or 2,6-dinitro-N,N-dipropyl-4-trifluoromethylaniline (trifluralin) and (b) 3-amino-2,5-dichlorobenzoic acid (chloramben).
Patent CA-1195493-A (CA)
Title: Procede pour le sechage d'une matiere humide  contenant de sels solubles, notamment du sel de  potasse, ainsi que dispositif pour la mise en oeuvre  de ce procede
Inventor: CURTIUS FRIEDRICH
IPC: F26B1/00
Filed: 1982-06-25
Granted: 1985-10-22
Abstract: PRECIS Procédé et dispositif pour le séchage d'une matière humide contenant des sels solubles, dans lesquels la matière humide est amenée dans un sécheur à lit fluidisé comportant un circuit de vapeur fermé et traverse le lit à l'état fluidisé.  La matière humide est chauffée, avant son introduction dans le sécheur à lit fluidisé, par condensation d'une partie dérivée de la vapeur de sortie sur la matière humide, cette condensation étant réalisée en même temps qu'une nouvelle séparation du condensat, dans un échangeur de chaleur placé en amont du sécheur et qui reçoit la vapeur de sortie par une conduite de dérivation.  L'invention permet le séchage d'une matière humide contenant des sels facilement solubles notamment du sel de potasse avec un dispositif réduit et une récupération d'énergie.
Patent CA-1177888-A (CA)
Inventor: ROESEL JOHN F JR
IPC: H02J15/00
Filed: 1982-06-30
Granted: 1984-11-13
Abstract: ABSTRACT OF THE DISCLOSURE     This invention relates to a power supply system having the capability of furnishing to a load sensitive to electrical faults and interruptions, electrical power for prolonged periods of time after a utility or other external power supply source thereto is interrupted.  The system comprises a main A.C. generator furnish-ing A.C. potential at a selected frequency and a selected voltage to the sensitive load, an auxiliary A.C. generator connected oper-atively thereto and a driving means for the generators energized with electricity from the external power supply source which is subject to outages and faults.  The auxiliary generator generates A.C. potential at a much higher frequency than from the main A.C. generator and this higher frequency A.C. is supplied to a high speed A.C. induction motor and a flywheel unit in a sealed chamber, which unit can store large amounts of kinetic energy at full speed.          Upon interruption of electricity from the utility or other exter-nal power source, the high speed A.C. induction motor in the sealed casing will function as a generator and feed back A.C. potential to the auxiliary generator which begins to operate as a motor and drives the main A.C. generator.  A relatively small A.C. motor and fly-wheel unit can store and supply power to keep the main A.C. gener-ator operating for from 1 to 20 minutes so as to ride out practi-cally all reasonably expected power line outages.  Particularly good results are obtained if the main A.C. generator is the Roesel generator of U.S. patent 4,168,459.
Patent CA-1194306-A (CA)
Inventor: WANICZEK HELMUT
IPC: C10L1/02
Filed: 1982-07-22
Granted: 1985-10-01
Abstract: Ignition improvers for internal combustion engines ABSTRACT         Nitric acid esters of monosaccharides and/or poly-saccharides can be used as ignition improvers for alcoho-lic fuels for internal combustion engines.
Patent CA-1187248-A (CA)
Inventor: SCHADE GERHARD
IPC: C08G63/00
Filed: 1982-08-12
Granted: 1985-05-14
Abstract: ABSTRACT OF THE DISCLOSURE:     The invention relates to a polyether ester for the bonding of textiles, based on terephthalic acid, iso-phthalic acid, 1,4-butanediol and a polyalkylene ether diol, the polyether ester having a melting point comprises between 95 and 125°C and a relative viscosity, measured at 25°C on l g of polyether ester in 100 ml of a mixture of 60 parts by weight of phenol and 40 parts by weight of 1,1,2,2,-tetrachloroethane of 1.85 to 2.20, characterized in that the molar ratio  of terephthalic to isophthalic acid is of 48 to 55 to 52 to 45, and the amount of   polyethylene glycol having a molar mass of 0.4 to 6kg/mol,is of 10.5 to 25% by weight relative to the sum of all the residues contained in the polyether ester. The bonded combinations exhibit resistance to hot water and perchloroethylene.