baber/WOPTO huggingface dataset:
Patent CA-1225103-A (CA)
Inventor: HUNDECK JOACHIM
IPC: C07B61/00
Filed: 1983-11-08
Granted: 1987-08-04
Abstract: PROCESS FOR MAKING 1,2-DICHLOROETHANE            ABSTRACT OF THE DISCLOSURE         The disclosure relates to a process for making 1,2-dichloroethane by reacting ethylene with chlorine in a solvent in the presence of a catalyst, at a temperatu-re of about 20 to 200°C at atmospheric or elevated pres-sure, and distillatively separating the 1,2-dichloroetha-ne from the chlorination mixture. The disclosure provides more particularly for the catalyst used to be an anhydrous tetrachloroferrate(1-) or a substance capable of forming a tetrachloroferrate(1-) in the reaction mixture.
Patent CA-1218537-A (CA)
Inventor: WALLACE GEORGE E
IPC: A47F3/04
Filed: 1984-01-13
Granted: 1987-03-03
Abstract: WIDE ISLAND AIR DEFROST CASE UTILIZING AIR TRANSFER CIRCULATING MEANS     ABSTRACT OF THE DISCLOSURE     A refrigerated display case of the wide island type having side-by-side, upwardly opening product display wells, uses its primary air circulating fans and a defrost fan to draw ambient air into the inlet and outlet of the air conduit of one product well, circulate it through the conduit of that well, transfer it to the air conduit of the second well, circulate it through the second conduit, and discharge it to atmosphere through the inlet and outlet of the second conduit.  The case incorporates a solid center partition having an opening near the bottom of the case in which the defrost fan is mounted to transfer the air from one product well to the other.  A splitter panel and sill at the upper end of the partition prevent the intake air from becoming mixed with the exhausted air.  During a defrost cycle the air can be drawn into the first well and exhausted from the second well for the full duration of the cycle.  Or, part way through the cycle a complete reversal of air flow can be effected so as to now draw the air into the second well and exhaust it from the first well for the remainder of the defrost cycle.
Patent CA-1219408-A (CA)
Inventor: BATCHELOR DOUGLAS R
IPC: A47L13/146
Filed: 1984-01-13
Granted: 1987-03-24
Abstract: Abstract of the Disclosure This disclosure relates to a sponge mop refill assembly designed for use with different mop head designs.          The assembly includes a sponge, a pair of backing plates secured to one side of the sponge, and an adapter for each backing plate.  Sponge mop heads include a squeeze plate that extends across the upper side of the sponge and is removably attached to the two backing plates on the sponge.          In one mop head design, the squeeze plate and the backing plates include mating slot and flange parts for connecting the backing plates directly to the squeeze plate.  In another mop head design, the connecting part on the squeeze plate is recessed and therefore not directly accessible to the mating part on the backing plate, and in this instance the adapters are positioned between and interconnect the squeeze plate with the backing plates.  In still another mop head design, screw holes are formed through the squeeze plate, and the assembly may further include screws and nuts for connecting the backing plates to the squeeze plate.
Patent CA-1211913-A (CA)
Inventor: SHEN KUO-CHENG
IPC: C08L97/02
Filed: 1984-02-10
Granted: 1986-09-30
Abstract: TITLE                PROCESS FOR MANUFACTURING COMPOSITE PRODUCTS          FROM LIGNOCELLULOSIC MATERIALS     INVENTOR                         Kuo-Cheng Shen ABSTRACT OF THE DISCLOSURE         A low cost process of making composite products from sugar containing lignocellulosic materials, such as sugarcane bagasse and stalks of sorghum, corn, sunflower, flax and the like, utilizing the residual sugars as bonding and bulking agent: Comminuted sugar containing lignocellulosic material  wholly composed of or partially in combination with other lignocellulosic materials, in the absence of adhesive binders or bonding agents, is moulded at a temperature of at least 160°C, and a pressure for a time sufficient to compound the material into a composite product. The free sugars in lignocellulosic materials, which are chemically transformed by the application of heat, act as a thermosetting adhesive binder, and provide both bonding and bulking effect. This chemical trans-formation can be further accelerated by the addition of an acidic catalyst to the lignocellulosic material before hot moulding. The composites thus produced possess great strength and excellent dimensional stability. These results are obtained to the greatest extent when the lignocellulosic materials contain a higher proportion of sugars.
Patent CA-1235136-A (CA)
Inventor: FRIENDS GARY D
IPC: C07F7/18
Filed: 1984-02-27
Granted: 1988-04-12
Abstract: POLYSILOXANE COMPOSITION WITH IMPROVED SURFACE WETTING   CHARACTERISTICS AND BIOMEDICAL DEVICES MADE THEREOF              ABSTRACT OF THE DISCLOSURE      The surface wetting characteristics of polysiloxanes prepared from monomeric polysiloxanes endcapped with ac-tivated unsaturated groups and modulus modifiers are improved by the inclusion of small amounts of an N-alkenoyl trialkyl-silyl aminate.  The improved polymeric compositions can be used to form hard, gas permeable contact lenses and other biomedical devices.                 BACKGROUND OF THE INVENTION   1.   Field of the Invention This invention relates to hard, gas permeable, biomedi-cal devices including contact lenses prepared from polysiloxanes polymerized with a modulus modifier and an N-alkenoyl trialkylsilyl aminate wetting agent. 2.   Prior Art Statement U. S. patent 4,153,641 discloses contact lenses made from polymers and copolymers comprising poly(organo-siloxane) polymers and copolymers formed by polymerizing  a poly(organosiloxane) monomer alpha,omega terminally bonded through divalent hydrocarbon groups to polymerized, free radical polymerizably activated, unsaturated groups forming a polymer in a crosslinked network.  Additionally, specific comonomers are disclosed which include lower esters of acrylic and methacrylic acid, styryls and N-vinyl pyr-rolidinone which may be copolymerized with the above described poly(organosiloxane) to form a copolymer.  The instant invention preferred polysiloxane monomers include the same poly(organosiloxane) monomers described above.
Patent CA-1269472-A (CA)
Inventor: CINCOTTA DAVID E
IPC: C08L67/04
Filed: 1984-03-05
Granted: 1990-05-22
Abstract: ABSTRACT OF THE DISCLOSURE         A process for producing a polymer blend which exhibits an anisotropic melt phase and is capable of forming shaped articles having satisfactory mechanical properties is provided. The process comprises the steps of (a) post-polymerizing a melt processable wholly aromatic polyester which is capable of forming an anisotropic melt phase apart from the blend and (b) subse-quently intimately mixing together approximately 85 to 95 percent by weight of the wholly aromatic polyester and approximately 5 to 15 percent by weight of a polyalkylene terephthalate.  The post-polymerizing step is conducted at a temperature and for a period of time sufficient to increase the inherent viscosity of the wholly aromatic polyester by at least approximately 50 percent, preferably by at least approximately 100 percent.  The polyalky-lene terephthalate is preferably polyethylene terephthalate.          The present invention further provides a polymer blend which is capable of exhibiting an anisotropic melt phase and the ability to form shaped articles having satisfactory mechanical properties.  The blend comprises (a) approximately 5 to 15 per-cent by weight of a polyalkylene terephthalate and (b) approxi-mately 85 to 95 percent by weight of a melt processable wholly aromatic polyester which is capable of forming an anisotropic melt phase apart from the blend, the wholly aromatic polyester having been subjected prior to blending to post-polymerization so as to increase the inherent viscosity thereof by at least approximately 50 percent.  The blend preferably comprises approximately 10 percent by weight of the polyalkylene terephtha-late and approximately 90 percent by weight of the melt process-able wholly aromatic polyester.
Patent CA-1224904-A (CA)
Inventor: HERZFELD RONALD
IPC: A46B5/00
Filed: 1984-03-30
Granted: 1987-08-04
Abstract: ABSTRACT OF THE DISCLOSURE A spray device, particularly for use with a brush-like cleaning and/or massage device, e.g. a toothbrush 1 with at least one nozzle body 10' can be coupled to a handle connectable by a hose to a faucet. The nozzle body 10' is preferably provided with a hydraulic pulsator having no moving parts.  The handle is hollow and receives a cartridge holding an active substance.  The substance dissolves slowly in water.  The handle is provided with a removable cap whose forward end is arranged for becoming fixedly secured to a tubular part 5 of the cleaning brush.  Moreover, the cap includes a hand actuated valve member displaceable into an open position against the force of a spring pressure or against the action of water pressure.  The valve member is preferably formed as a multiple section valve piston with a conical shut-off member.  The bristles 4 of the body cleaning device are preferably mounted on a bristle plate 3 which is held on a brush head portion 2 in an easily replaceable fashion, in the style of a snap-on fastener. Thus, the brush, such as a tooth brush, is formed by the combination of the bristle plate 3, the brush head portion 2, the tubular section 5 and a by rectangular recess for receiving the nozzle body 10'.
Patent CA-1208684-A (CA)
Inventor: SAY DONALD L
IPC: H01J29/50
Filed: 1984-04-11
Granted: 1986-07-29
Abstract: ABSTRACT: "In-line electron gun structure for a colour cathode ray tube".           In-line electron gun structure for colour cathode ray tubes in which the final focussing and accelerating electrodes each employ three in-line tapered, partially over-lapping apertures in facing relationship, and at least one pair of electron beam spot-shaping inserts associated with the central aperture of the focussing electrode.
Patent CA-1256056-A (CA)
Inventor: FROMSON ROBERT E
IPC: C25F3/14
Filed: 1984-04-27
Granted: 1989-06-20
Abstract: ABSTRACT OF THE DISCLOSURE         An apparatus and means for removing slivers and burrs from machined laminated components utilizes a salt solution, such as sodium nitrate, as the electrolyte which flows between a cathode and the laminated member which is connected to the positive terminal of an electrical power supply.  The electrolyte is pumped into the gap which is described between the cathode and laminated component and an electrical current flows between the laminated member and the  cathode,  removing metal  which  is  deplated  or released into the stream of electrolyte.  The use of a salt solution, as opposed to an acidic solution,  for the electrolyte fluid reduces the need for cleaning and neu-tralizing the acid remaining on the workpiece and, further-more,  reduces the potential hazards normally associated with the use of acids.
Patent CA-1188309-A (CA)
Inventor: UMEZAWA HAMAO
IPC: C07H15/22
Filed: 1984-05-03
Granted: 1985-06-04
Abstract: COMPOUNDS AND THEIR PREPARATION            ABSTRACT OF THE DISCLOSURE           New derivatives of the istamycin B series of compounds are provided, which are 3-0-demethylistamycin B0, 3-0-demethyl-istamycin B and 3-0-demethyl-2"-N-formimidoylistamycin B repre-sented generally by Formula I or specifically by Formulae Ia, Ib and Ic, respectively.  Compound Ia is useful as an intermediate for the preparation of Compounds Ib and Ic and the latter two compounds exhibit a high antibacterial activity against a wide variety of Gram-positive and Gram-negative bacteria and are use-ful antibiotics.  Also provided are processes for the prepara-tion of the new derivatives starting from istamycin B0.
Patent CA-1217486-A (CA)
Inventor: MARZONI GIFFORD P
IPC: C07D277/28
Filed: 1984-05-10
Granted: 1987-02-03
Abstract: Abstract Certain 4-halomethylthiazoles having a 2-substituted-aminomethyl group are prepared by reacting an aminothioamide with a dihalopropanone in the presence of a haloalkane and a bicarbonate, and dehydrating the resulting intermediate.
Patent CA-1181278-A (CA)
Inventor: TURNER ROBERT M
IPC: E04F11/18
Filed: 1984-06-01
Granted: 1985-01-22
Abstract: ABSTRACT OF THE DISCLOSURE     A handrail assembly is provided for the erection or a temporary handrail designed for a toddler or young child.  The assembly includes a set of elongate rail members which can be connected end-to-end to provide a handrail member of the desired length.  Two or more elongate hanging devices are used to mount the handrail member below another handrail.  Each of these devices is capable of being mounted at one end thereof to a wall at a location which is a mounting point for the other handrail.         Preferably each hanging device has a support bracket attached to its bottom end, which bracket is connectable to the handrail.
Patent CA-1231090-A (CA)
Inventor: BUTLER-SMITH PAUL W
IPC: B23B31/16
Filed: 1984-09-05
Granted: 1988-01-05
Abstract: ABSTRACT            A rotary rock drilling chuck has three jaws for clamping a drill stem.  Each jaw is carried by the step of a piston acting in a cylinder against belleville springs between it and an end cap. A projection from the piston passes through the belleville springs. Three pairs of masses are equally and circumferentially spaced about the clamping axis and acted upon by levers pivoted to the chuck body so that a mass acts upon a pair of levers each of which acts upon a piston to counteract centrifugal force acting on the piston.
Patent CA-1211799-A (CA)
Inventor: JARNESTEDT GOERAN
IPC: H04L27/01
Filed: 1984-11-13
Granted: 1986-09-23
Abstract: ABSTRACT OF THE DISCLOSURE           Digital signals which are sent each with their own frequency are corrected for frequency-dependent attenua-tion of the transmitting medium in a filter so as to main-tain a desired relationship between the amplitudes of the signals after the filter.  Difference circuits, the output signals of which control  the filter means, obtain signals on their first inputs from a common voltage supply circuit and signals on their second inputs from a voltage supply cir-cuit for each of the output signals.  A decoder sends a control signal associated with the respective digital sig-nal.  The control signals reset switches whereby the volt-age supply circuits obtain signals from an amplitude detec-tor corresponding to the respective frequency in the trans-mitted signal.  Each of the output signals fed to the fil-ter by the difference circuits thus corresponds to a digital signal.
Patent CA-1260210-A (CA)
Inventor: MILLER MICHAEL A
IPC: B23G1/36
Filed: 1984-11-23
Granted: 1989-09-26
Abstract: ABSTRACT OF THE DISCLOSURE           A method of forming a ball screw member from an elongated work piece having an outer cylindrical surface, as well as the ball screw member formed by the method.  A helical ball screw thread is machined on the outer cylindrical surface, the helical ball screw thread having a helical groove and a helical crest surface.  An end journal or other end treatment is formed in the workpiece, the end journal or other end treatment being located during the forming operation relative to the helical crest surface. The outer cylindrical surface of the workpiece may be centerless ground prior to the machining of the helical ball screw thread.  The helical crest surface may be ground after the machining of the helical ball screw thread to provide increased concentricity between components of the ball screw member,  A high precision ball screw member may be formed from the ball screw member by performing a regrinding operation on the helical groove, the regrinding operation being positioned relative to the helical crest surface.
Patent CA-1244227-A (CA)
Inventor: SCHIMMEL GUENTHER
IPC: C01B25/237
Filed: 1984-12-17
Granted: 1988-11-08
Abstract: PROCESS FOR MAKING ALKALI METAL PHOSPHATE SOLUTIONS          CONTAINING LITTLE FLUORINE     ABSTRACT OF THE DISCLOSURE     The disclosure relates to a process for making alkali metal phosphate solutions containing little fluorine from pre-purified alkali metal phosphate solutions obtained from crude phosphoric acid by extracting the acid with an orga-nic solvent being immiscible or only partially miscible with water, scrubbing the crude extract with water or an alkali metal solution, re-extracting the phosphoric acid from the scrubbed extract with the use of an aqueous alkali metal solution while establishing an alkali metal/P-molar ratio equal to or larger than 1:1, and separating the re-sulting organic phase from the pre-purified alkali metal phosphate solution obtained.          To this end, the disclosure provides: a) for the pre-purified alkali metal phosphate solution to be stirred at 60 - 120°C into a compound of an alkaline earth metal Me2+ with a solubility in water at 20°C of more than 0.01 mol Me2+/1, alkaline earth metal compounds with a solubllity in water of less than 5 g/l being used in the form of particles of which more than 50 % have a size of less than 8 µm, for the whole to be reacted over a period of 0,5 to 4 hours, and for the resulting preci-pitate to be separated from the alkali metal phosphate solution so purified, and b) for the alkaline earth metal compound necessary for effec-ting the defluorination to be suspended or dissolved in the alkali metal phosphate solution needed for effecting the re-extraction, and for the reaction between the alkali metal phosphate solution and alkaline earth metal com-pound to be effected in the mixing zone of the re-extrac-tion unit.
Patent CA-1219778-A (CA)
Inventor: CHIN JOSEPH T
IPC: A23L19/00
Filed: 1985-01-03
Granted: 1987-03-31
Abstract: HIGH-SPEED FOOD PRODUCT FORMING APPARATUS     Abstract of the Disclosure A high-speed forming apparatus for rapidly forming a plurality of food products from a food product mixture or slurry discharged from a nozzle orifice wherein said food products attain a desired shape, e.g., a section of a right cylinder.  The device is mountable on the nozzle of a food product forming apparatus and enables a liquid substance to be uniformly directed against each of radially inner and radially outer forming surfaces to envelop them and to aid in the re-lease of the formed food products from the apparatus.
Patent CA-1262320-A (CA)
Inventor: KELLY GEORGE G
IPC: C06C5/04
Filed: 1985-01-11
Granted: 1989-10-17
Abstract: Abstract "Explosive Shock Tube Having Lateral Initiation Properties"      A modified explosive shock tube is provided which has a lateral energy output and hence may be used as a trunk line in a non-electric blasting network.  The modified shock tube comprises a hollow, flexible plastic tube having a layer of energy-producing material on its inner surface and also having at intervals along its length,  cuts or slits which penetrate the tube wall.  The area of the slits has an overcovering of a waterproof material.  When energized, the tube will burst at the area of the slits to release energy in a direction lateral to the tube axis.
Patent CA-1260006-A (CA)
Inventor: FERRUTI PAOLO
IPC: C08G63/68
Filed: 1985-02-13
Granted: 1989-09-26
Abstract: Abstract: NEW COPOLYMERIC POLYCONDENSATION PRODUCTS BETWEEN 1,10-BIS(2-HYDROXYETHYLTHIO)DECANE, POLY(OXYETHY-LENEGLYCOL)S OR POLY(OXYPROPYLENEGLYCOL)S, AND BIS-(CARBOXYLIC ACID)S    A new series of oligomeric or polymeric compounds having a poly(ester) structure, wherein the monomeric starting materials are 1,10-bis(2-hydroxyethylthio)-decane, poly(oxyethyleneglycol)s or poly(oxypropyle-neglycol)s and carboxylic acids, the process for the preparation thereof and the therapeutic use thereof.
Patent CA-1240209-A (CA)
Inventor: STRAKA ROBERT
IPC: B29C67/20
Filed: 1985-03-28
Granted: 1988-08-09
Abstract: ABSTRACT OF THE DISCLOSURE    A dough guide is used to precisely control thick-ness of an expanding dough extrudate.  The extrudate is forced through at least two vertical slots in an extru-sion head, at relatively high pressure and at a tempera-ture at least equal to the boiling temperature of water.    The dough guide has three plates.  A middle plate is fixed between the slots.  Two movable plates are disposed on opposite sides of each slot from the middle plate.  A threaded rod is used to selectively adjust the location of each of the movable plates.  In alternative embodiments, any number of slots are used, each having two guides adjacent it.  Any or all of the guides may be made selectively movable.   A product called "crisp bread" may be made thereby.
Patent CA-1236600-A (CA)
Inventor: IWAMI TOMOYUKI
IPC: G09G5/02
Filed: 1985-04-11
Granted: 1988-05-10
Abstract: ABSTRACT     A raster scan display system is provided for composition of plural frame color images.  First and second frame buffers, which store first and second frame color images respectively, are accessed in synchronization with a CRT.          Then the first and the second frame streams of color pel data are generated from the first and the second frame buffers respectively. Subsequently the first stream of color pel data is compared with a predetermined color, and at the time when the comparison indicates that the colors are not the same, the first stream of color pel data is sent to the CRT.  When the comparison indicates that the colors are the same, however, the second stream of color pel data is sent instead.  Consequently, the first frame color image except of the part of the predetermined color is superimposed on the second frame color image.  It is as if the part of the predetermined color in the first frame color image becomes transparent.
Patent CA-1261275-A (CA)
Inventor: FISHLOCK-LOMAX ERIC G
IPC: C11D1/88
Filed: 1985-04-23
Granted: 1989-09-26
Abstract: ABSTRACT Shampoo Composition Shampoo compositions containing at least two different amphoteric surfactants are described, at least one of the surfactants being of the alkylamino or alkoxypropylamino type and preferably the other being of the acylamino type.
Patent CA-1239913-A (CA)
Inventor: JOHNSON WILFRED V
IPC: A62C37/11
Filed: 1985-04-23
Granted: 1988-08-02
Abstract: A B S T R A C T        An automatic on-off fire extinguishing sprinkler head including a housing defining inlet and outlet openings; a valve retained by the housing and disposed between the inlet and outlet openings, the valve being movable between a closed position in which it prevents fluid flow between the inlet and outlet openings and an open position in which it allows fluid flow therebetween and a latch releasably latching the valve in the closed position.  A release mechanism responds to a sensor by releasing the latch to allow movement of the valve means into the open position at a predetermined ambient temperature.  Operatively coupled to the valve is a temperature responsive actuator shaped and arranged to allow movement of the valve into its open position in response to ambient temperatures above a given level and to force the valve into its closed position in response to ambient temperatures below the given level.
Patent CA-1228385-A (CA)
Inventor: HAGEDORN STANLEY R
IPC: A01K79/00
Filed: 1985-05-16
Granted: 1987-10-20
Abstract: TRANSFER SYSTEM FOR FISH AND SIMILAR ARTICLES        Abstract Pumping efficiency for fish and other articles has been achieved far beyond expectations (i.e., 3.25:1 and higher). By extracting water and adding air at a location in the pumping system higher than the initial air injection point, thereby excluding a certain percentage of the water, efficiency is not only increased but variable control capabilities are achieved.