baber/WOPTO huggingface dataset:
Patent CA-1230216-A (CA)
Inventor: YANG DUCK J
IPC: B01J29/035
Filed: 1984-02-28
Granted: 1987-12-15
Abstract: TITLE              Ultrapure Crystalline Silica Polymorphs and Process for the Preparation Thereof ABSTRACT           A process is disclosed for the preparation of ultrapure crystalline silica polymorphs using organosilicon as the silica source.  The polymorphs consist essentially of silicon and oxygen, other metals being substantially absent, for example, aluminum being present in a concentration below 55 ppm.  The polymorphs are prepared from organosilicon compounds having the formula   wherein A is a group selected from the class consisting of H, OH, R1, OR2, Cl, phenoxy,   X,Y, and Z are the san e or different and a e grou ?s selected from the class consisting of R4, OR5, phenoxy and phenyl and wherein one of the groups is additionally hydroxyl.  R1-5 are the same or different and are selected from the class consisting of alkyl groups having 1-10 carbon atoms and cycloalkyl groups having 5-10 carbon atoms, m is an integer of 1-10 and n is an integer of 1-5, preferably 1-2.  The reaction is carried out in aqueous basic medium in the range 100 to 300°C.  The polymorphs are useful in preparing catalyst bases having substantially no surface acidity relative to other types of silicas.
Patent CA-1212053-A (CA)
Inventor: LOWE PETER A
IPC: G01N33/566
Filed: 1984-03-28
Granted: 1986-09-30
Abstract: Abstract:   In a process for the production of a soluble native protein, such as immunoglobulin or methionine-prochymosin, in which an insoluble form of the protein is produced by a host organism transformed with a vector including a gene coding for the protein, the insoluble form of the protein is reversibly denatured in an alkaline aqueous solution at a pH selected to promote dissociation of a group or groups of the protein involved in maintaining the conform-ation of the protein, and the protein is subsequently allowed to renature by reducing the pH of the solution below a pH effective to denature the protein to produce the soluble native form of the protein.  The pH of the alkaline aqueous solution is suitably in the range 9.0 to 11.5.
Patent CA-1231406-A (CA)
Inventor: WOOTEN NORMAN W
IPC: H01R13/44
Filed: 1984-04-18
Granted: 1988-01-12
Abstract: ABSTRACT OF THE DISCLOSURE           An elongated plug body constructed of dielectric material is provided.  One end portion of the body includes a pair of parallel elongated conductive terminals embedded therein and having one pair of ends projecting endwise outwardly of the corresponding body end.  The other ends of the terminals are supported in the other end portion of the body for electrical connection with a pair of conductors.  The aforementioned one end portion of the body includes a sleeve slidingly telescoped thereover and closed at its outer end by an end wall having a pair of openings formed therethrough in which the terminals are slidingly received and the sleeve is shiftable between an outer position with the free ends of the terminals disposed in the openings and an inner position with the end wall of the sleeve abutted against the end of the body outwardly from which the terminals project. Spring structure yieldingly biases the sleeve toward its outer position.  In a first form of the invention, the ends of the terminals embedded in the body have the exposed ends of a pair of insulated flexible conductors electrically connected thereto with the other ends of the conductors projecting outwardly of the body.  In a second form of the invention cavities are provided opening endwise outwardly of the other end of the body into which the free ends of the terminals of a male electrical plug may be telescoped for electrical contact with the body terminals.
Patent CA-1237144-A (CA)
Title: Derives de l'acide cyclopropane carboxylique, leur  preparation, leur application a lutte contre les  parasites des vegetaux les compositions les  renfermant et les nouveaux intermediaires obtenus
IPC: C07C69/74
Filed: 1984-05-30
Granted: 1988-05-24
Abstract: PRECIS DE LA DIVULGATION:          L'invention concerne les composés de formule (II):                        (II) dans laquelle R représente un radical alcoyle linéaire, ramifié ou cyclique, saturé ou insaturé, renfermant de 1 à 8 atomes de carbone et la double liaison, entre les atomes de carbone de la chaîne latérale en position 3 du cyclopropane, a la géométrie Z.  Les composés de formule (II) peuvent être utilisés comme produits intermédiaires pour la prépa-ration de dérivés de l'acide cyclopropane carboxylique ayant des propriétés pesticides.
Patent CA-1210447-A (CA)
Inventor: JOHNSON KENNETH O
IPC: F02C9/28
Filed: 1984-06-08
Granted: 1986-08-26
Abstract: RAPID POWER RESPONSE TURBINE            ABSTRACT OF THE DISCLOSURE              In one form of the invention, means are provided for sensing changes in electrical power demanded from an electrical generator driven by a gag turbine engine. In response, other means change the rate of fuel and air delivery to the engine in proportion to the demand changes and keep the combustor fuel-air ratio substantially constant.
Patent CA-1236864-A (CA)
Inventor: WILSON JAMES A
IPC: B62D53/08
Filed: 1984-07-11
Granted: 1988-05-17
Abstract: ABSTRACT OF THE DISCLOSURE                            FIFTH WHEEL           A fifth wheel assembly (10) comprising a lower support structure (12) adapted to be mounted on the chassis of a prime mover and an upper support plate (13) upon which a trailer is to be supported, and between which a cam operated linkage mechanism is incorporated which has a pair of spaced apart main link assemblies (14) pivotally attached at one end (19) to the lower support structure and pivotally attached adjacent their other ends (18) to the upper support plate.  Cam members (15) are pivotally supported on the link assemblies with their cam surfaces in contact with the lower support structure, whereby rotation of the cam members pivots said link assemblies upwardly about their pivotal connections to said lower support structure to thereby raise the upper support plate attached to the other ends of said link assemblies.  A pair of spaced apart strut assemblies (20) are also provided pivotally connected at one end (21) to respective ones of said main link assemblies and detachably connected at their other ends, to the lower support structure via a pin (28) extending through a number of alternative arrangements of aligned holes (23, 24, 25, 26, 27), and such as to hold said upper support plate relative to said lower support structure in one of a number of alternative positions.
Patent CA-1241221-A (CA)
Inventor: CLARKE JOHN A
IPC: G02B13/16
Filed: 1984-07-19
Granted: 1988-08-30
Abstract: ABSTRACT:     A lens system is provided which is suitable for back-projecting an enlarged image of a TV cathode ray tube (CRT).  To achieve a compact cabinet design 1 for such a projection television set, a short projection throw and a wider projection angle are required, together with a wide aperture (F/l) for a bright projected picture and with a definition sufficient to resolve 625 line television pictures.  The lens system comprises a concave CRT face plate FP and only two lens elements L1, L2, each of positive power and each having one aspheric surface, the powers of the elements being chosen so that 0.4 K  <K1 < 0.60 K and 0.75 K< K2 < 1.05 K where K1 is the power of the element remote from the object surface, K2 is the power of the element adjacent the object surface and K is the total power of the projection lens.
Patent CA-1223428-A (CA)
Inventor: MIKI ISAO
IPC: B22D17/32
Filed: 1984-07-25
Granted: 1987-06-30
Abstract: METHOD OF DIE CASTING            Abstract of the Disclosure The method of die casting using a plunger tip of a reciprocal plunger for forcibly rejecting the molten metal supplied to the inner space of a sleeve into the mold cavity through a spool bush connected therebetween includes measur-ing the temperature of at least a portion of at least one of the plunger tip, the sleeve and the spool bush, and commencing retracting of the plunger on the basis of the measured temperature after each shot of die casting.  The measured temperatures of the plunger tip, the sleeve and/or the spool bush may be utilized for operation of calculating the clearance at the peripheral surface of the plunger tip and the retracting of the plunger is commenced at the time the calculated clearance is ascertained to reach a predetermined set value of clearance.  The temperature dif-ference between the measured temperatures may be compared with a set temperature difference calculated so as to correspond to a predetermined set value of clearance at the peripheral surface of the plunger tip.  The retracting of the plunger may be withheld until a set time is reached, which set time is set so as to insure sufficient time for removal of the fins or flashes around the plunger tip upon removal of the cast product from the mold cavity.  Alterna-tively, the plunger is forcibly retracted even though the temperature of the plunger tip does not descend by a set temperature at the lapse of another set time to be thought sufficient to retract the plunger as controlled by the method of the present invention under the normal conditions and, at the same time, an alarm is actuated so as to expedite the repairing operation.
Patent CA-1230842-A (CA)
Inventor: OAKLEY DAVID J
IPC: B65G15/08
Filed: 1984-09-19
Granted: 1987-12-29
Abstract: ABSTRACT OF THE DISCLOSURE A belt conveyor apparatus according to this invention defines a conveyance path including a first pulley and at least a second pulley.  An endless belt member is adapted for continuous travel about the pulleys and comprises a lower portion which engages the pulleys and an integral upper portion adapted to receive objects therein at a first location on said conveyance path and transport the objects to a second location for discharge.  The upper belt portion includes an opposed pair of longitudinally disposed crest-like members, biased towards each other in a substantially abutting relationship.  The crest-like members define therebetween a continuous, normally biased closed, channel along the upper belt portion.  Means are disposed at the first and second locations and operatively associated with the belt member for urging the normally biased together crest-like members apart in order to provide access to the continuous channel whereby objects can be received into, or discharged from the channel.  Motors are in communication with the conveyance path for effecting the travel of the endless belt member about the conveyance path.  The conveyance path can be configured to include travel through two or more elevations and one or more directional changes in order to convey objects above, below and/or around existing structures.
Patent CA-1217652-A (CA)
Inventor: LADENDORF DOUGLAS W
IPC: G01N27/00
Filed: 1984-11-07
Granted: 1987-02-10
Abstract: DRILLING FLUID GAS TESTING SYSTEM AND METHOD Abstract of the Disclosure An apparatus and an associated method are provided for substantially continuously measuring and monitoring the relative concentration  of combustible gases contained within the drilling mud that returns to the earth surface of an earth borehole while it is being drilled by a drilling rig employing liquid drilling fluid or mud to transport the cuttings,  The apparatus includes a means to continuously extract a gas sample from the returning drilling mud flow and supply the sample to a measuring device where the relative concentration of combustible gas is measured and an electrical output signal produced.  The electrical output signal is used to derive an electrical data signal repre-sentative of the relative concentration of combustible gases in the gas sample.  A numerical representation of the electrical data signal is displayed for interpretation by the drilling rig operator.  In the method of this invention. the gas sample is taken from a flow of drilling mud at the earth surface and passed through the measuring device that includes a catalytic sensor to produce an electrical output signal.  The sensor output signal is used to derive an electrical data signal that is processed to derive a numerical display indicative of the relative combustible gas concentration in the drilling mud.
Patent CA-1224550-A (CA)
Inventor: GIACOMETTI ALBERTO M
IPC: H04Q9/16
Filed: 1984-11-14
Granted: 1987-07-21
Abstract: ABSTRACT "Method of controlling a supervisory arrangement in a digital transmission system".         Method of controlling a supervisory arrangement of a digital transmission system in which a plurality of repeaters are arranged between two terminal stations, a terminal station transmitting a call message which is provided with an address number towards the desired re-peater. In each repeater passed-through the received address number is increased by a fixed number, for example 1, and thereafter compared with another fixed number, for example 0. The repeater which detects that the in-creased address number received is equal to the other fixed number transmits its service information towards at least one terminal station. This accomplishes that all said repeaters may be of an identical construction.
Patent CA-1231604-A (CA)
Inventor: VETTER RICHARD
IPC: F24H9/20
Filed: 1984-11-15
Granted: 1988-01-19
Abstract: ABSTRACT OF THE DISCLOSURE       An apparatus, especially a hot water boiler, for heating water.  The apparatus includes a  com-bustion chamber which is provided with a heat exchang-er.  Furthermore, one or more further heat exchangers are accommodated in the housing of the apparatus.  In order to be able to keep the temperature at the out-let of the apparatus low, the combustion chamber is disposed at the top of the apparatus, whereas the chamber or heat exchanger disposed the furthest   to-ward the bottom is in the form of a condensation chamber.  Due to the combustion chamber disposed at the top, the condensation chamber which is disposed at the bottom is far better protected from the effect of the heat.  Accompanied by  expensive ex-ploitation of the heat, the flue gas temperatures and water discharge temperatures at the bottom heat exchanger can be kept below 30°C.  So that extensive protection of the apparatus can be achieved, the chamber or chambers disposed above the condensation chamber are provided with a device for introducing hot gases, which device is intended to avoid a dropping of the temperature below approximately 60°C.  This can be accomplished by means of a thermostat.
Patent CA-1250492-A (CA)
Inventor: QUESTEL JOHN M
IPC: B32B7/06
Filed: 1985-01-14
Granted: 1989-02-28
Abstract: ABSTRACT          A protective, easily removable laminate for application to the carpeting, and decorative seat and wall covering material of vehicles includes a plastic film coated on one surface with an acrylic resin based pressure sensitive adhesive.          The film, in one form of the invention, is com-prised of unoriented polypropylene capable of stretching and withstanding deep drawing and resisting the heat involved in thermoforming.  The pressure sensitive adhesive is essentially of the type which does not adversely affect paint or trim material and which has preferential adhesion failure to the carpeting or seat or wall covering rather than to the film.  In another form of the invention, the film, where it is not to be subjected to thermoforming operations, may be of a different composition such as polyethylene tereph-thalate, oriented polypropylene, polyethylene, or polyvinyl chloride.  The method of employing the film in all forms of the invention is to apply the pressure sensitive adhesive to one surface of the film.  The film is then applied to the carpeting or other material which can be stored and transported in roll form.  By virtue of the adhesive, the film adheres to the carpet or other material until physically removed therefrom.  The method further includes cutting the material into squares, die cutting it, and punching holes where required.  The laminate of the material and the film is then installed in the vehicle and upon delivery of the finished vehicle to the dealer, the film can thus be removed.  In some instances the material is also thermoformed prior to die cutting.
Patent CA-1251904-A (CA)
Inventor: LINDAHL JONAS A I
IPC: D21D5/02
Filed: 1985-02-22
Granted: 1989-04-04
Abstract: A METHOD FOR PRODUCING IMPROVED HIGH-YIELD PULPS               ABSTRACT OF THE DISCLOSURE          Improved chemimechanical, particularly chemithermo-mechanical,pulp (CTMP), is produced by defibrating or refining wood chips to produce pulp, and then screening the pulp and separating out at least 30% by weight of the incoming fiber suspension as a first long-fiber fraction,and also separating out a first fine-fiber fraction, screening the first fine fiber fraction a second time,and separating out a second long-fiber fraction which is combined with the first long-fiber fraction to form a long-fiber fraction of improved properties, and a second fine-fiber fraction of improved properties.
Patent CA-1262355-A (CA)
Inventor: PFOHL WILLIAM F
IPC: C08G59/28
Filed: 1985-05-01
Granted: 1989-10-17
Abstract: POLYGLYCIDAMIDESAND COATING COMPOSITIONS                       ABSTRACT A class of epoxy compounds, (i.e. polygly-cidamides) are blended with polyamines and other epoxy reactive oligomers to provide crosslinkable coating systems.  When the systems are cured they are tough and abrasion resistant, possess solvent, chemical and water resistance and UV stability.  The polyglycida-mides are epoxy derivatives of cyclic ureas such as glycouril and aminotriazines such as melamine and guanamines.  They are prepared from cyclic ureas and aminotriazines by methylolating with formaldehyde, etherifying with an alcohol, transetheramidizing with acrylamide and epoxidizing with hydrogen peroxide. They are used with polyamines and other epoxy reactive oligomers to provide crosslinkable coating systems which possess solvent, chemical and water resistance and UV stability.
Patent CA-1273599-A (CA)
Inventor: MEUZELAAR BOB
IPC: C25D5/08
Filed: 1985-05-07
Granted: 1990-09-04
Abstract: ABSTRACT OF THE DISCLOSURE    A metal screen material comprising a metal screen, preferably a cylindrical screen, obtained by electrolytic deposition of a metal upon a screen skeleton and said screen material having a fineness of 250 to 1000 mesh. The screen opening is preferably defined by curved walls extending from the lower side of the screen opening to the upper side of the screen opening, the upper side of the screen opening having an area which is larger than the lower side of the screen opening. The screen material is advantageously obtained by electrolytic deposition of a metal from an electrolytic bath upon the screen skeleton, the bath solution passing, at least during part of the electrolytic depositing time, through the openings in the screen skeleton with the skeleton connected as the cathode, either in one direction or in the other reverse direction.
Patent CA-1235528-A (CA)
Inventor: PITASI MARTIN J
IPC: H05K1/02
Filed: 1985-08-19
Granted: 1988-04-19
Abstract: ABSTRACT         Disclosed is a heat dissipator for electronic components on a ceramic substrate.  The ceramic plate receives heat from the component at one sur-face and has a plurality of separate spaced metallic heat-conducting elements mounted on and extending from the other surface of the plate  In a preferred embodiment the ceramic plate on which the metallic elements are mounted is separate from a ceramic substrate on which the electronic components are mounted; the ceramic plate carrying the metallic elements includes adhesive for adhering it to the ceramic substrate carrying the electronic components; the metallic elements are cylindrical copper pins; and the pins are connected to the ceramic plate via solder and metallic pads deposited on the ceramic plate.
Patent CA-1252266-A (CA)
Inventor: SHIREY RICHARD
IPC: E04B9/06
Filed: 1985-08-20
Granted: 1989-04-11
Abstract: SUSPENSION CEILING GRID INNER WITH EXPANSION MEANS     ABSTRACT OF THE DISCLOSURE          A fire-rated type suspension ceiling grid runner is disclosed having expansion means intermediate its ends which collapse when the runner expands due to elevated temperature occurring during a fire or the like.  The runner provides a boxlike panel supporting flange along the lower end of the web thereof in which slots are formed to define a flange segment and connecting legs. When the expansion means collapses, the flange segment is laterally displaced as a unit and remains connected to each adjacent portion of the boxlike flange by at least two longitudinally spaced legs.  The displaced flange segment functions as a bridging beam which continues to connect the adjacent portions of the flange and maintain them in alignment so that a grid formed of the runners can continue to maintain proper support for panels even when fire conditions occur.
Patent CA-1262899-A (CA)
Inventor: HARNDEN MICHAEL R
IPC: C07F9/6574
Filed: 1985-09-18
Granted: 1989-11-14
Abstract: ABSTRACT       A compound of formula   or a salt thereof, wherein R1 and R2 are each independently hydrogen, acyl or phosphate, provided that when one of R1 or R2 is phosphate, the other is hydrogen; or R1 and R2 are joined together to form a cyclic acetal group, a cyclic carbonate group or a cyclic phosphate group, processes for their preparation and their use as pharmaceuticals in the treatment of viral infections.
Patent CA-1236539-A (CA)
Inventor: COLDREN DANIEL R
IPC: H01R13/502
Filed: 1985-09-20
Granted: 1988-05-10
Abstract: ABSTRACT:     A one-piece metal cable guide member for guiding an undersize cable into a shielded plug housing which has a cable supporting base, cable locators upstanding from the base in spaced apart relation to locate between them an insulated conductor row and cable sheath and shielding flanges upstanding from the base to extend along a rear end between opposite side edges of the base and the cable locators. The cable guide member is inserted front end leading into the mouth of the plug cavity guiding the conductor row into pathways communicating with the mouth with the shielding flanges completely closing and thereby shielding the mouth on each side of the cable. The cable shield is pressed against the base which connects directly with flaps extending into the mouth from the housing shield.
Patent CA-1260043-A (CA)
Inventor: HANEMAAYER JACOBUS N
IPC: B60H1/00
Filed: 1985-09-24
Granted: 1989-09-26
Abstract: ABSTRACT OF THE DISCLOSURE           A recreational vehicle, mobile home or the like having several appliances therein which generate heat and/or gases, such vehicle incorporating an integrated venting system.  The venting system includes cool air inlets in a lower portion of the vehicle body and a common warm air outlet in another portion of the vehicle body located at a level above the cool air inlet.  Means are disposed between the air inlet and the warm air outlet for confining the flow of air and causing such air flow to pass in contact with or in close proximity to the appliances and/or outlets therefrom whereby to remove heat and/or gases from these appliances as the air moves from the air inlet to and through the air outlet.
Patent CA-1251369-A (CA)
Inventor: GREENBERG I MELVIN
IPC: A61B1/00
Filed: 1985-10-01
Granted: 1989-03-21
Abstract: IMPROVED SURGICAL HOLDER FOR                A LAPAROSCOPE OR THE LIKE                 ABSTRACT OF THE DISCLOSURE      Mechanical components for holding and positioning a laparoscope incident to its use during surgery, wherein a selectively tensionable cable-type component is released for moving the laparoscope almost into its desired position and then tensioned into a rigid structure, and then a ball and socket joint is rendered operational to complete the moving of the laparoscope, if need be, to precisely position this instrument in its required anatomy-viewing position.