baber/WOPTO huggingface dataset:
Patent CA-1063765-A (CA)
Inventor: PREST WILLIAM M JR
IPC: G03G5/00
Filed: 1975-09-04
Granted: 1979-10-09
Abstract: ABSTRACT OF THE DISCLOSURE      Process for enhancement in the mechanical properties of polymeric films prepared from photoconductive polymers, such as poly(N-vinylcarbazole), its homologues and/or its analogues.  In this process, polymeric films of these materials are subjected to strain-induced orientation whereby the polymeric chains contained therein are aligned parallel to the lines of force imparted to the film.  In order to prevent accompanying deterioration of the charge carrier transport properties of the polymer during such orientation process, the film is subjected to a disordering strain either con-current with or subsequent to such orientation in order to relax the spatial constraints on their bulky, pendant photoactive groups, and thus relieve them of the distortion imparted during such orientation. Films prepared according to this process have improved flexibility and reduced brittleness, thus making such materials highly suitable for use in flexible electrophotographic imaging members.
Patent CA-1061098-A (CA)
Title: Plugging subterranean regions with acrylic-epoxy resin-forming emulsions
Inventor: KNAPP RANDOLPH H
IPC: E21B33/138
Filed: 1975-09-23
Granted: 1979-08-28
Abstract: ABSTRACT      A subterranean region is plugged by flowing into it an aqueous emulsion containing a polyepoxide, a polycarboxy polymer, and a material for controlling the rate of the interaction of said polymers, with the proportions of said materials arranged to cause the emulsion to become a resinous plug after being emplaced.
Patent CA-1052935-A (CA)
Inventor: PERRON PETER J
IPC: C08L57/02
Filed: 1975-11-03
Granted: 1979-04-17
Abstract: ABS COMPOSITIONS OF IMPROVED IMPACT STRENGTH     ABSTRACT OF THE DISCLOSURE        ABS compositions of improved impact strength are obtained by adding thereto controlled amounts of a synthetic hydrocarbon resin having a ring and ball softening point of at least 70°C and derived from deeply cracked petroleum stocks.     -i-
Patent CA-1046349-A (CA)
Inventor: CARR GEORGE W
IPC: B60P7/13
Filed: 1975-11-03
Granted: 1979-01-16
Abstract: Abstract of the Disclosure Coupling assemblies for coupling a trailer chassis to the corner castings of a container each in-clude a vertical cone head and coupling pin rotatable and vertically positionable in a stationary tubular extension mounted in a housing, one of which is con-nected to each of the lateral ends of conventional front and rear chassis bolsters.  Each housing includes a guide slot in a wall through which a handle and operating rod projects.  As the rod is moved in the slot to pivot the coupling pin from open to lock position, it is rotatable about its axis.  The rod includes cam means having stop and camming surfaces which are engageable with projections and surfaces on the lower ends of the stationary tubular extensions within which the coupling pin is movable to selectedly latch the pin in either an open position, a first vertical lock position, to accom-modate a certain thickness of the base of a corner cast-ing, and into a second position to accommodate a different thickness of corner casting base.
Patent CA-1052583-A (CA)
Inventor: BOROS JOZSEF
IPC: C01F7/0633
Filed: 1975-12-24
Granted: 1979-04-17
Abstract: ABSTRACT OF THE DISCLOSURE      PROCESS FOR DIGESTING GOETHITE-CONTAINING BAUXITES ACCORDING TO THE BAYER TECHNOLOGY          The invention relates to a process for the production of alumina according to the Bayer technology, of bauxites containing goethite and especially of boehmitic or diasporic bauxites, further for the acceleration of the digestion process, for the transformation of goethite into hematite, for the increase of the alumina yield and for the reduction of the caustic soda losses, the essence of which consists in that the digestion is carried out in the presence of 0.2-2.0 % Mg++  and/or Fe++  and/or Mn++   and/or Co++  ions reckoned upon the weight of the dry bauxite or of compounds and/or ores containing these ions in the indicated quantity.    The process can be advantageously used simultaneously with the CaO-addition, also with digesting liquor containing NaCl and/or Na2SO4.  The above mentioned bivalent ions are catalyzing the solubility of aluminium minerals and the transformation of goethite into hematite, the minimum required temperature of which can be reduced to 230 °C and for the transformation even 20 minutes at 240 °C and 2 minutes at 260°C   are sufficient.  The process can be highly advantageously used in the tube digesting equipment.      The above enumerated bivalent cations reduce by further 10 % the losses of Na2O bound to the red mud, as compared with the technology applying CaO + Na2SO4-addition considered as optimum until now and increase by about 15 % the filtering capacity of red mud.
Patent CA-1049731-A (CA)
Inventor: GOTCHEL JOEL P
IPC: D01G25/00
Filed: 1976-04-09
Granted: 1979-03-06
Abstract: ABSTRACT OF THE DISCLOSURE         Forming apparatus of this invention include a fiberizing roll for separating fibers from a feed mat and entraining them in a gaseous medium, a foraminous forming surface through which the gaseous medium passes and upon which the fibers are condensed to form a fibrous web, and a formation duct between the fiberizing roll and the forming surface for defining a flow path for the gaseous suspension of fibers from the fiberizing roll to the forming surface; the improvement wherein the formation duct in-cludes front and back, substantially planar inner surfaces which may slightly converge in a direction from the fiberizing roll to the forming surface, but preferably diverge at an angle of up to about 4-1/2 degrees when the forming surface is a curved surface of a cylindrical drum, and up to about 1-1/2 degrees when the forming surface is a linear surface of a forming belt; the forma-tion duct being inclined to the forming surface to define an incidence angle with the forming surface in the range of from about 10 degrees to about 30 degrees.  The invention also resides in a method of forming a nonwoven web by employing the above-described apparatus.
Patent CA-1074017-A (CA)
Title: Analog to digital converter for asynchronous detector
Inventor: BESEKE KERMIT M
IPC: H04W88/02
Filed: 1976-05-03
Granted: 1980-03-18
Abstract: ANALOG TO DIGITAL CONVERTER FOR ASYNCHRONOUS DETECTOR                       ABSTRACT OF THE DISCLOSURE    In combination with an asynchronous detector for detecting a particular digital word within a train of signals wherein the detector samples each bit in the train a plurality of times and provides a comparison signal in response to a predetermined number of correlations between the samples and a stored word, an analog to digital converter including signal conditioning means having first and second modes of operations for converting a received analog signal to a digital signal in both modes of operation and inserting periodic error pulses in the digital signal in the first mode of operation and switch means coupled to the signal conditioning means and the detector for switching the signal conditioning means between the first and second modes of operation in response to a comparison signal from the detector. The signal conditioning means includes either a phase locked loop or a digital circuit which counts the time between transitions of the digital signal and inserts error pulses when the time between transitions exceeds a predetermined time.
Patent CA-1069129-A (CA)
Inventor: LINFIELD MYRON
IPC: C07F7/22
Filed: 1976-05-05
Granted: 1980-01-01
Abstract: NOVEL METHOD FOR PREPARING ALKYLTIN TRIHALIDES           Abstract of the Disclosure - Alkyltin trihalides are prepared by reacting a stannous halide with the corresponding alkyl halide in the presence of specific catalysts.  By conducting the reaction under superatmospheric pressure the amount of catalyst required is significantly reduced.  Recycling the catalyst decreases process costs and improves the yield of organotin trihalide.                             -i-
Patent CA-1074767-A (CA)
Inventor: MURTY HARI N
IPC: C01B32/384
Filed: 1976-05-11
Granted: 1980-04-01
Abstract: ACl-l GRANULAR ACTIVATED CARBON MANUFACTURE FROM      SUB-BITUMINOUS COAL LEACHED WITH       DILUTE INORGANIC ACID Abstract of the Disclosure Granular activated carbon is manufactured from sub-bituminous coal by crushing and screening the as received coal containing about 17% moisture by weight to produce 8/30 mesh granules, which are treated by leaching with a dilute aqueous solution of inorganic acid (H2S04, H3P04, or HCl) at a concentration of about 6.5% by weight and at an aqueous solution to coal ration of about 10/1 by weight, by washing off the acid, and by drying. In one case the granules are dried partially to a moisture content of about 15% by weight without the addition of a carbonaceous binder.  In the other case the granules are dried thoroughly and mixed with about 10% by weight of coal tar pitch.  The so treated granules are ground to more than 65% by weight -325 mesh powder, preferably 75 to 85% by weight -325 mesh, which is compressed into pel lets of 0.5" diameter and 0.5" long under a pressure of 40,000 to 80,000 psi, and then granulated to obtain 6/20 mesh granules.  These granules are devolatilized by heating to 450°C at 300°C/hour in an atmosphere of N2 and the volatiles and by maintaining the temperature for 1 hour, and then activated by heating to 800 to 900°C in an atmosphere of N2 and steam and by maintaining the temperature for 4 to 5 hours. The overall yield of granular activated carbon is 25 to 33% by weight of the dry coal, and the activated granules have a surface area of 900 to 1100 m2/gram, an iodine number of 1000 to 1100, an ash content of 5 to 7%, an abrasion number of 70 to 80, and an apparent density of 0.46 to 0.50 gram/cc, which properties make them suitable for use in waste water treat-ment and other applications.
Patent CA-1037860-A (CA)
Inventor: TAKATSUKA TAKESHI
IPC: B23D25/00
Filed: 1976-08-26
Granted: 1978-09-05
Abstract: ABSTRACT OF THE DISCLOSURE           The specification describes an apparatus for manufacturing steel fibres comprising: a pair of pulling rolls for drawing out a steel strip from a coil; a slitter for continuously cutting said steel strip drawn out by said pulling rolls into a plurality of parallel ribbonlike steel strips; and cutting means including a stationary blade, a pair of speed adjustable pinch rolls for feeding said ribbon-like steel strips onto the stationary blade, rotary blade means having a plurality of rotary blades mounted on the peripheral surface of a rotary cylindrical body at equal intervals and parallel to the axis of said rotary cylindrical body, the arrangement being such that in use a predetermined gap is maintained between the edge of each said rotary blade and said stationary blade, and cooling means being provided for said rotary blade means and said stationary blade.
Patent CA-1052202-A (CA)
Inventor: BEARDMORE JOHN M
IPC: F16J1/14
Filed: 1976-09-27
Granted: 1979-04-10
Abstract: CROSSHEAD PISTON ASSEMBLY     Abstract of the Disclosure:         An internal combustion engine crosshead piston assembly having an outer skirt mounted by an elastomeric member on an inner skirt to reduce piston-slap-caused noise wherein expansible chambers are provided in the elastomeric member and are connected by orifices in the inner skirt to receive and eject oil to provide cooling of the outer skirt and also add a damping effect to further reduce the noise.
Patent CA-1057392-A (CA)
Inventor: SMITH VALOR C
IPC: H01Q1/36
Filed: 1976-11-02
Granted: 1979-06-26
Abstract: DUAL-FREQUENCY CIRCULARLY POLARIZED ANTENNA FOR SATELLITE       NAVIGATION AND RELATED PROBLEMS        Abstract This disclosure deals with a novel dual-frequency circularly polarized antenna that is particularly adapted for receiving satellite transmissions and/or for transmitt-ing signals to satellites as for navigation purposes, the antenna being adapted through novel conductive preferably spiral-element configurations of different lengths, to pro-duce substantially omnidirectional horizontal coverage and substantially hemispherical vertical coverage at two or more operating frequencies.
Patent CA-1071984-A (CA)
Inventor: DORSEY GEOFFREY A JR
IPC: C23F1/36
Filed: 1976-11-29
Granted: 1980-02-19
Abstract: ABSTRACT OF THE DISCLOSURE         This invention relates to the formation of a hydrophobic and usually oleophilic coating on an aluminium surface by treating the aluminium surface with an aqueous alkaline solution containing long chain aliphatic carboxylic acids, alkali metal salts or ammonium salts of such acids or other long chain aliphatic compounds which generate a long chain carboxylate anion in an alkaline solution.
Patent CA-1053549-A (CA)
Inventor: JOHNSON EDGAR G JR
IPC: C12M1/32
Filed: 1976-12-20
Granted: 1979-05-01
Abstract: ABSTRACT OF THE DISCLOSURE      An incubation apparatus for use in automated biochemical analyzer system which comprises a block of thermoconductive material having rows of wells for the reception of sample carriers to be incubated with tempera-ture control attached to the block; the block resting with well openings facing downward upon a pair of insulating plates so arranged that by movement of one of the plates, a row of wells is exposed so as to allow a number of sample carriers, equivalent in number to the number of wells in a row, to be loaded into that row of wells, the sample carriers being in alignment with and directly below the row of wells; and a means for lifting the sample carri-ers up into the wells or lowering sample carriers down out of the wells.
Patent CA-1037453-A (CA)
Inventor: MORRISON BERT L
IPC: F16K3/02
Filed: 1976-12-23
Granted: 1978-08-29
Abstract: ABSTRACT OF THE DISCLOSURE      A valve comprised of a valve body having a body with flow passages therethrough and a valve member mounted therein movable between open and closed positions.  An annular groove in the body around a flow passageway has an open end, a closed end, and a pair of divergent side walls with the groove width at the closed end portion being greater than the width at the open end. An annular seal is positioned in the groove.  A chemical fastener in the groove secures the seal rings in the goove.  A method of making the valve seal structure includes forming the groove with divergent side walls in a seal ring supporting position of a valve body and then partially filling the groove with a chemical fastener material.  The seal ring is inserted into the groove within the chemical fastener material and the chemical material is cured to secure the seal ring in the groove.
Patent CA-1071498-A (CA)
Inventor: GLENN JOSEPH G
IPC: A61M11/06
Filed: 1977-01-25
Granted: 1980-02-12
Abstract: ABSTRACT OF THE DISCLOSURE A nebulizer for use with IPPB equipment comprising a cylindrical housing closed at top and bottom, with an air inlet through the side wall of the housing, and an outlet through the side wall near the top of the housing.  The outlet carries a mouthpiece.  The bottom portion of the housing comprises a reservoir for liquid medication.          There is an axial cylindrical chimney positioned inside the housing, with a skirt which hangs below the position of the inlet so that incoming air from the IPPB flows downward around the chimney, up inside of the chimney, out of the top of the chimney, and sideways into the outlet pipe.  Positive pressure air is provided to a vertical nozzle positioned in the bottom of the housing creating a high velocity stream of air which flows over the end of a capillary tube, which dips into the medication in the base portion.  The high velocity air jet causes the liquid medication to be inducted through the capillary and to be picked up by the flowing air as droplets of liquid to impinge on a horizontal cylindrical target positioned immediately above the nozzle, so that the liquid droplets are broken into many fine droplets, which are then picked up by the air flow, and carried upward through the chimney and to the outlet pipes.
Patent CA-1080864-A (CA)
Inventor: SUPPA PAUL
IPC: G04G9/00
Filed: 1977-03-24
Granted: 1980-07-01
Abstract: Abstract A segment pattern for a liquid crystal multiple-digit display which by the addition of two segments between two (seven-segmented) digits makes it possible to present alpha-numeric information, namely, the first two letters of each of the days of the week.  The added segments are so positioned in relation to the digits that they can be used in the formation of a plurality of letters which have improved symmetry to each other and position on the display, particularly on a liquid crystal wristwatch display.
Patent CA-1064982-A (CA)
Inventor: OPPENHEIMER JESS
IPC: A63B69/36
Filed: 1977-03-25
Granted: 1979-10-23
Abstract: ABSTRACT OF THE DISCLOSURE            Apparatus for use by one manipulating a device to be swung such as a golf club, bat or the like.  A weighted member such as a slider is secured to a means for guiding the slider through a pre-determined path, such for example, as an arcuate guide member.  A pair of flexible cords are secured to a pair of spaced apart posts and engage both the slider and the device to be swung with one of the cords secured at its other end to the device to be swung and the other to the slider.  As the user swings the device to be swung, such as a golf club, the slider is caused to traverse the pre-determined path causing the flexible cords to become taut or slack at pre-determined points throughout the swing, thereby causing the device to be swung to accelerate  at a maximum speed through a desired point and to assume a desired position while moving at the maximum speed.          Thus both timing and power are developed for the swing.  One of the cords may have a rigid rod-like member substituted for it with one end of the rod secured to the weighted member or slider and with the rod passing through a ring or loop secured to the device to be swung.     Also disclosed is apparatus where the cords may pass through a stop means and over a pulley or the like to a position for attachment to the shoulders of the user.  Thus as the user swings the device his shoulders are automatically placed into the proper positions as required to accommodate the particular swing.         Also disclosed as an alternative to the arcuate guide member and slider is an elongated rod supported for rotation about a pivot point and having a universally attached ring member thereon which is engaged by the flexible cords.
Patent CA-1085397-A (CA)
Inventor: SCHMIDT KARL-JULIUS
IPC: C07F9/6509
Filed: 1977-04-12
Granted: 1980-09-09
Abstract: ABSTRACT OF THE DISCLOSURE     New chemical compounds of the general formula                   (I).   in which R and R1 are alkyl radicals.  The new compounds are useful as insecticides and acaricides.
Patent CA-1092151-A (CA)
Inventor: WREUMLI ALBERT
IPC: C08G16/02
Filed: 1977-04-21
Granted: 1980-12-23
Abstract: Abstract of the Disclosure The invention relates to sulphonated, aromatic reaction products as agents for tanning hides and leather.  They are obtained by reacting a sulphonation product, which is pre-viously formed from a diphenyl ether, a phenol and a sulphona-ting agent, with formaldehyde, with a reaction mixture of an aminoplast-forming agent and formaldehyde or with an aminoplast precondensate.
Patent CA-1067889-A (CA)
Inventor: ROWINSKI ANTHONY S
IPC: B25C11/02
Filed: 1977-05-24
Granted: 1979-12-11
Abstract: ABSTRACT           An apparatus is disclosed for removing fasteners, such as nails and the like. The apparatus includes a pair of pivotally attached levers each having handles at one end, while the opposite ends are provided with support members and claws which, respectively, engage the surface within which the fastener is embedded and the shank of the fastener.  Upon the manual application of a force to the handles, the levers coact to apply a separating pressure between the fastener and the material within which the same is embedded to effect an axial withdrawal of the fastener.
Patent CA-1089841-A (CA)
Inventor: WALDMAN EDWIN H
IPC: C02F1/28
Filed: 1977-05-25
Granted: 1980-11-18
Abstract: Abstract of the Disclosure An oil absorbent product is made from mixture of aspen groundwood, secondary fiber furnish free of resoluble toxic contaminants and water repellent agents.  The aspen groundwood is in crude unrefined fiber form and the secondary fiber furnish comprises a major portion of conventional groundwood and a minor portion of corrugated fiber.
Patent CA-1081380-A (CA)
Inventor: HORNA OTAKAR A
IPC: H04B3/23
Filed: 1977-06-09
Granted: 1980-07-08
Abstract: ABSTRACT OF THE DISCLOSURE         A logarithmic echo canceller is disclosed which simplifies the hardware of the canceller by (a) using a logarithmic format for both the sampled voice signal xi and the coefficient hi, (b) using sophisticated algorithms for performing the different computational tasks, and (c) using analog techniques for echo subtraction and error signal gen-eration.  The incoming signal is sampled in a sample and hold circuit.  The sign of the sampled input signal is sensed and its absolute value is converted directly in a special analog-to-digital convertor into an A-law companding code.  The whole digitized sample xi is multiplexed and stored in a plurality of shift registers.  An average or pseudo rms value  of the samples is computed, and the samples are compared in a comparator with the stored average or pseudo rms value, and if the sample is greater than the average or pseudo rms value, a signal enables updating of the existing value of hi stored in the H-register.  The average or pseudo rms value of  the incoming signal is also converted in a digital-to-analog converter to n reference voltage used to bias an analog center clipper and the error detector or comparator.  A bandpass filter, pre-emphasis circuit and a low pass filter with de-emphasis circuit reduce the harmonic distortion caused by the center clipper.  The sample xi and hi stored in the X-register and H-register arc fed into a multiplier.  In order that the A-law encoded xi and hi values may be used directly without further A-law/logarithmic conversion, the multiplication is performed in three different ways.  In the case when both exponents are non-zero, addition of exponents and mantissas in two adders takes place.  When both exponents are zero, the mantissas are directly multiplied.    When one of the exponents is non-zero and the other is zero, both mantissas are directly multiplied in a multiplier, and the result is shifted in a shift register according to the value of the exponent.  The result of the multiplication is then added to or subtracted from the contents of an accumulator.      The output of the accumulator is converted in a digital-to-analog converter into an analog voltage which is subtracted in a differential amplifier from the echo signal which is present in the send branch of the two-wire to four-wire hybrid.
Patent CA-1068874-A (CA)
Inventor: SHORE JOHN W
IPC: E04F13/14
Filed: 1977-06-16
Granted: 1980-01-01
Abstract: IMPROVEMENTS IN CERAMIC TILE;     Abstract of the Disclosure A ceramic tile for interior walls and ceilings comprising a glazed body with a glazed spacing lug on at least two edges of the tile and terminating short of the corners to enable the same tile to be used as a field tile or as an edging tile.  The glazed spacing tile may be provided on all four sides of the tile or it may be provided on two adjacent sides with a spacer lug adjacent one corner of the other two sides and a shorter lug adjacent the other corners of the other two sides.