baber/WOPTO huggingface dataset:
Patent CA-1144609-A (CA)
Inventor: VANDEGRAAF JOHANNES J
IPC: H03L7/12
Filed: 1980-04-30
Granted: 1983-04-12
Abstract: APPARATUS AND METHOD FOR ACHIEVING ACQUISITION  AND MAINTAINING LOCK IN A PHASE LOCKED LOOP               ABSTRACT OF THE DISCLOSURE     A voltage controlled oscillator (VCO) and reference oscillator are connected in a phase locked loop with a first phase detector, loop switch, and acquisition sawtooth sweep circuit.  A second phase detector and fast integrator circuit are connected to the VCO and reference oscillator in quadrature relation with respect to the first phase detector. As the acquisition sweep circuit sweeps the VCO, the fast integrator produces a signal whose magnitude increases as the  swept VCO frequency approaches the frequency needed for the phase locked loop to achieve phase lock. when this signal magnitude exceeds a predetermined threshold, an output control a signal is produced. This output control a signal causes the loop switch to close and make the phase locked loop operational. A delay circuit is connected to the second phase detector and at integrator. The delay  circuit produces a delayed output at a predetermined time after the control signal is produced.  The delayed output prevents the acquisition weep circuit  from further sweeping  after the phase locked loop is operational. The  delayed output can also also used  to energize other apparatus such as a radio transmitter. If the phase locked  loop includes a mixer or divider which may produce an image or harmonic frequency that could cause erroneous phase lock. a complementary or inverted output can be derived from the second phase detector, and applied to a slow integrator.  If the the low integrator output exceeds predetermined threshold, it opens the loop switch and disables the phase locked loop. This permits the acquistion sweep circuit to operate until the proper frequency is acquired for proper operation by the phase locked loop.
Patent CA-1132958-A (CA)
Inventor: MCMILLAN FRASER
IPC: B29B17/02
Filed: 1980-05-29
Granted: 1982-10-05
Abstract: ABSTRACT OF THE DISCLOSURE    Uncured rubber scrap may be segregated from metal and fibre contaminants by the method of first embrittling the scrap by immersion in a liquid cryogen, then impacting the embrittled rubber and magnetically removing metal, and then milling the remainder.  Gas flotation is used during milling so that particles of rubber and fibre are selectively removed from the mill and subsequently classified by size, whereby most of the fibrous component is segregated from a remainder.  The remainder is then worked so as to increase the surface area of residual fibre prior to further segregation of fibre from rubber by gas flotation.  The combined milling and flotation procedure may also be used for separating components of other mixtures.  Apparatus for embrittling and milling is described.
Patent CA-1122104-A (CA)
Inventor: ZIMMERMAN EDWIN H
IPC: B27F5/02
Filed: 1980-06-06
Granted: 1982-04-20
Abstract: AUTOMATIC CANT PRODUCTION MACHINE     ABSTRACT        A woodworking machine to convert round logs to square or rectangular cants by initially cutting with initial chipping cutters pairs of adjacent grooves respectively in the opposite upper and lower surfaces of each log to form corners of said cant thereon and also form the side edges of four boards to be sawed from the log incident to forming the cant, and then delivering the log to a conveyor extending between the inlet and discharge ends of the machine and having support elements thereon complementary to t e lower cant corner of said logs and additional series of guide elements above and coextensive with said conveyor which engage the upper corner of said cant on the log, whereby the log is securely and accurately held between said conveyor and guide elements during a single passage through the machine during which, downstream from the inlet end of the machine, additional chipping cutters form other pairs of grooves respectively in the opposite sides of said logs to define side  corners of the cant and also remove slag sections from four areas of the log respectively between the said pairs of grooves on said log and, farther down-stream along the conveyor, pairs of rotary saws respectively at a right angle to each other are positioned to saw from the log between the successive sides of the pairs of grooves two boards from opposite sides of the upper portion of the log and two boards from the lower portion of the log while guided and held between said conveyor and additional guide elements, the cuts made by said saws also forming the ultimate side surfaces of the cant.
Patent CA-1122084-A (CA)
Inventor: GOLOFF ALEXANDER
IPC: F02M59/36
Filed: 1980-06-23
Granted: 1982-04-20
Abstract: Rotary Fuel Injection Apparatus Abstract of the Disclosure Fuel injection apparatus often uses valves which rapidly move in a start and stop motion for the purpose of starting and stopping injection.  Undesirable inertial forces result from such start-stop movement of the valves.  To limit such undesirable forces, a pair of valves are provided for continuous rotation for starting and stopping injection.
Patent CA-1133546-A (CA)
Inventor: RUSSELL RONALD R
IPC: H01H71/04
Filed: 1980-08-15
Granted: 1982-10-12
Abstract: CIRCUIT BREAKER TRIP INDICATOR AND AUXILIARY SWITCH COMBINATION    ABSTRACT OF THE DISCLOSURE A plunger is normaly held in a retracted, non-indicating position by a permanent magnet against the force of a spring biasing the plunger to an extended, indicating position protruding through an indicator cap. An electromagnet is selectively energized to develop flux in opposition to the magnet holding flux, whereupon the plunger pops to its indicating position.  The cap internally mounts a pair of contacts which are bridged by a plunger mounted shorting ring incident with the plunger assuming its indicating position, thereby completing an external electrical indication circuit.
Patent CA-1130841-A (CA)
Title: Self-regulating nozzle for a liquid supply  line
Inventor: BRON DAN
IPC: B05B1/34
Filed: 1980-08-18
Granted: 1982-08-31
Abstract: A SELF-REGULATING NOZZLE FOR A LIQUID SUPPLY LINE   ABSTRACT OF THE DISCLOSURE     There is provided a self-regulating nozzle for a liquid supply line.  The nozzle comprises a nozzle body attachable to the line, a vortex chamber within the body and a vortex producing inlet means through which the liquid in the line enters the vortex chamber.  One wall of the vortex chamber is constituted by the surface of a stretchable diaphragm, the opposite wall of the chamber is provided with an aperture leading to the consumer and the other surface of the diaphragm is exposed to line pressure.  The arrangement is such that the vortex produced by the inlet means results in the creation of a low pressure zone on the surface of the diaphragm which is exposed to the vortex chamber and the effective cross section of the aperture is controlled by the stretching of the stretchable diaphragm.
Patent CA-1153226-A (CA)
Inventor: GOTTAUF GEORG
IPC: B65G27/06
Filed: 1980-08-21
Granted: 1983-09-06
Abstract: ABSTRACT OF THE DISCLOSURE     This invention relates to a clamping assembly used for securing of protective linings to the walls of machinery used in the crushing and conveying of abrasive material.          The clamping assembly comprises a clamping member made of a generally resiliently deformable material such as a non-abrasive rubber type material with a metal attachment member ambedded in the clamping member.  This attachment member in-cludes a generally "C" shaped in cross section channel with two inwardly directed flanges either side of the open port_ ion of the generally "C" shaped section.  The channel is em-bedded in the clamping member in a manner such that the open portion of the "C" shaped section is exposed along one side of the clamping member whereby a plurality of retaining bolts, each having an associated rail piece, may be inserted in the "C" shaped channel and slidably positioned within the length thereof.  Each rail piece extends either side of the associated bolt and engages the inwardly directed flanges of the "C" shaped channel.  When this clamping assembly is se-cured to the wall of a machine, the rail pieces distribute the bearing force exerted by the bolts to the flanges of the "C" shaped channel.  This structure overcomes problems with prior art devices where the position of the retaining bolts was critical and did not have the flexibility of the present system.  Furthermore, this structure alleviates problems due to the tearing of the bolt from the channel or tearing of the channel from the clamping member.  This is accomplished by the manner in which the bolt and associated rail pieces are supported within the "C" shaped channel and the anchor-ing of the channel within the clamping member.
Patent CA-1123260-A (CA)
Title: Production of soybean protein isolate  of improved purity
Inventor: MILLAR DONALD B
IPC: A23J1/14
Filed: 1980-09-22
Granted: 1982-05-11
Abstract: ABSTRACT OF THE DISCLOSURE      The purity of soybean protein isolate obtained by collecting protein from an aqueous protein dispersion formed by extraction of the protein from soybeans with aqueous sodium chloride solution and dilution of the protein solution, optionally after concentration of the protein content thereof, is improved by the inclusion of millimolar concentrations of calcium chloride in the aqueous sodium chloride solution.
Patent CA-1145769-A (CA)
Title: Petroleum sulfonation
Inventor: ZORNES DAVID R
IPC: C07C303/44
Filed: 1980-09-30
Granted: 1983-05-03
Abstract: ABSTRACT OF THE DISCLOSURE Adding a small quantity of water to a sulfonation mixture of a highly aromatic oil produces a readily separable two-phase system from which higher equivalent weight petroleum sulfonic acids can be recovered. This separation is part of a petroleum sulfonation process using highly aromatic oils as the feedstock.
Patent CA-1149221-A (CA)
Inventor: HOSAKA DENNIS B
IPC: A23J3/00
Filed: 1981-03-30
Granted: 1983-07-05
Abstract: PROCESS FOR DRYING COMPOSITIONS CONTAINING  DERIVED PROTEIN-CONTAINING COMPOSITIONS             AND ADDITIVES            ABSTRACT      The drying solutions of derived protein-contain-ing compositions and particularly mineral containing deproteinized whey byproducts and additives such as gelatin and sodium hexametaphosphate can be improved by mixing starch, preferably, a thin boiling modified starch, with the solution prior to drying.  The dried product exhibits reduced hygroscopicity as well as improved physical and chemical properties.
Patent CA-1146888-A (CA)
Inventor: TANAKA KENTARO
IPC: C12R1/465
Filed: 1981-04-13
Granted: 1983-05-24
Abstract: NEW PROCESS FOR PREPARING THIENAMYCIN            Abstract:   A new process for preparing thienamycin, a known antibiotic being useful as a medicament and veterinary drug, characterized by cultivating Streptomyces penemifaciens sp. nov. in a suitable medium and recovering thienamycin from the fer-mentation broth.
Patent CA-1161894-A (CA)
Inventor: STREETER ALEC E
IPC: G05D23/19
Filed: 1981-05-14
Granted: 1984-02-07
Abstract: Case 2762 OVEN KEEP-WARM ELECTRONIC MODULE               ABSTRACT OF THE DISCLOSURE There is disclosed a control circuit for controlling the timed-bake mode and keep-warm mode of operation for an electric oven.  The control circuit comprises a first pulse shaper and flip flop which produces a first control signal in response to the timed-bake mode of operation being selected.  This first control signal causes first and second gates to respectively inhibit operation of first and second heating elements within the oven.  A second pulse shaper and flip flop are provided which upon the commencement of the operation of the timer of the oven at a preselected time, generate a second control signal to the first gate and generate a third control signal to the second gate. Generation of both the second and third control signals causes the second and first gates to respectively enable their first and second heating elements.  At this instance, the oven is operating in its timed-bake mode of operation.  Upon the expiry of the timer, the second signal ceases to control the operation of the first gate and as a result the first gate inhibits the opera-tion of the first heating means.  Thus, after the timer shuts down, only the second gate will continue to allow the second heating element to operate and hence the oven will be in its keep-warm mode of operation.  This novel electronic oven control circuit has advantage in that it is readily adapted for connection with "off the shelf" timers.
Patent CA-1147696-A (CA)
Inventor: LUCEY MICHAEL F
IPC: B05D3/06
Filed: 1981-06-01
Granted: 1983-06-07
Abstract: ELECTRONIC COMPONENT WITH RADIATION-HARDENABLE COATING           Abstract of the Disclosure An electronic component is coated with a radia-tion-curable resin composition containing a borate to reduce the cure time and increase the thickness of the coating that can be cured.
Patent CA-1150425-A (CA)
Inventor: HEFNER ROBERT E JR
IPC: B03D1/02
Filed: 1981-06-12
Granted: 1983-07-19
Abstract: ABSTRACT          Certain ether amines and their derivatives are useful to improve the recovery of clean coal in a froth flotation process.  The presence of these ether amines and derivatives in the flotation medium is par-ticularly effective to enhance the recovery of oxidized bituminous coal.  The ether amines normally effect a higher percent coal recovery than conditions used pre-viously.
Patent CA-1162516-A (CA)
Inventor: DOTZER RICHARD
IPC: C25D7/06
Filed: 1981-06-23
Granted: 1984-02-21
Abstract: ABSTRACT OF THE INVENTION     "APPARATUS FOR THE ELECTRODEPOSITION OF METALS, IN PARTICULAR ALUMINIUM"      Apparatus for the electrodeposition of a metal, particularly aluminium, on an elongate material comprises a tubular cell (1) through which the material (2) to be treated can be moved in the axial direction, means for pumping electrolyte (11) through the tubular cell (1) with the aid of a closed electro-lyte circulating system (12 to 20), and airlock arrangements (31, 32) at either end of the tubular cell (1) serving both to collect any electrolyte leaking therefrom and to prevent ingress of atmospheric air.  Preferably, T-shaped connecting components (10) are arranged between the ends of the tubular cell (1) and the airlock arrangements (31, 32) to mask the flow of electrolyte and to divert it round the circulating system (Figure 1).
Patent CA-1175139-A (CA)
Inventor: MIYAZAWA TAKASHI
IPC: G01N21/90
Filed: 1981-06-26
Granted: 1984-09-25
Abstract: ABSTRACT OF THE DISCLOSURE In a defect detecting method and device, an image formed by receiving light from an illuminated object to be examined, is divided into a plurality of picture elements, and the signals of the picture elements are stored.  The signals are later read out in the order in which the portions of the object corresponding respectively to the picture elements are traversed by a sub-stantially spiral imaginary line drawn on said object, and a defect is detected from the relationship between  the signal of one of the picture elements and the signal of another picture element read out a little before the reading of the signal of said one of the picture elements.
Patent CA-1168312-A (CA)
Inventor: MCRAE DANIEL D
IPC: H03H21/00
Filed: 1981-06-26
Granted: 1984-05-29
Abstract: ABSTRACT         In a communication system for transmitting information over a dispersive link, a transmitted message is assembled to contain alternately arranged known and unknown pluralities of data symbols.  At the transmitter, the known data symbols may be produced by a maximal length PN sequence generator, with an identical generator being provided at the receiver for reproducing the known symbol sequences to enable data recovery to be achieved.  In the received signal processing equipment, the received message is subjected to a prescribed data recovery algorithm containing a transversal filter function and a data estimate refinement scheme which takes advantage of the a priori knowledge of data symbols of those portions of the transmitted message between which unknown data symbols are located.  A transmitted message contains a plurality of successive frames, each frame containing N known data symbols followed by M unknown data symbols.  Thus preceeding and succeeding each set of M unknown data symbols there are respective sets of N known data symbols that enable the characteristics of the transversal filter function, and thereby the data estimates of the unknown symbols, to be updated and adaptively refined.  Synchronization of the local PN sequence generator at the receiver with the PN sequence of which the successive sets of N known data symbols are composed in the transmitted message is achieved through a prescribed tone sequence/initialization scheme, subsequent to which unknown data is transmitted and processed at the receiver in accordance with the data recovery algorithm.
Patent CA-1163490-A (CA)
Inventor: WILKINSON RICHARD L
IPC: G11B7/253
Filed: 1981-08-13
Granted: 1984-03-13
Abstract: COMPOSITION FOR USE IN MAKING AN ABLATIVE            IMAGING MEDIUM          ABSTRACT OF THE DISCLOSURE     A composition for an imaging medium solution that is suitable for use in making ablative imaging media such as video discs, microlithographic films, and chemical etch resist-type films.  The composition consists essentially of about 200 parts nitrocellulose and about 37 parts disperse red I dye dissolved in a suit-able solvent, to provide a solution that is highly absorptive at a wavelength of about 480 nanometers. The solution is prepared in a special process that provides a highly-stabilized viscosity such that it can be used to form films of precise, uniform thicknesses.
Patent CA-1208168-A (CA)
Inventor: SOLOMON FRANK
IPC: H01G11/00
Filed: 1981-10-13
Granted: 1986-07-22
Abstract: ABSTRACT     The present invention is directed to three-layer laminates which include an active layer or sheet cont-aining from about 60 to about 85 weight percent active carbon, the remainder being unsintered, fibril-lated polytetrafluoroethylene in intimate admixture with the active carbon, the active layer being laminated on its working surface to a current distributor and on its opposite surface to a porous, coherent, hydrophobic polytetrafluoroethylene-containing wetproofing layer. The three-layer laminates are suitable for use as oxygen (air) cathodes in chlor-alkali and other electro-chemical cells, fuel cells and in other electrochemical applications.
Patent CA-1192236-A (CA)
Inventor: WALTERS DONALD N ARNOLD DRIVE
IPC: B62B5/00
Filed: 1981-10-13
Granted: 1985-08-20
Abstract: SKID ATTACHMENT FOR SHOPPING CARTS            ABSTRACT OF THE DISCLOSURE:           A skid attachment for a shopping cart, useful in operative position to allow easy movement of the cart over snowy and icy surfaces, as in supermarket parking lots, includes a pair of skid members near the front wheels of the cart, when the attachment is installed, which are selec-tively movable into inoperative storage position underneath the cart and into operative position with the skid surfaces thereof being lower than the front wheels of the cart, hand operable linkages for moving the skid members selectively into either inoperative or operative position, and fastening means for holding the skid members and the associated linkages to the cart.  Preferably, the skid attachment includes stops for limiting the movements of the skid members, locking means for holding them in position and handle or equivalent means so that the skid members may be readily moved into desired positions.  Additionally, the skids are of preferred shapes to give the cart stability and to facilitate movement through snow and over ice.  Also within the invention is a method of facilitating movement of the skid portion of the skid attachment between inoperative and operative positions by raising the cart with a certain type of lifting device so that the weight of the filled cart does not oppose move-ments of the skids, which, in such movements, have portions thereof passing beneath the front wheels of the cart.
Patent CA-1173361-A (CA)
Inventor: DEIBIG HEINRICH
IPC: A61K9/52
Filed: 1981-11-26
Granted: 1984-08-28
Abstract: PHARMACEUTICAL COMPOSITIONS     Abstract of the Disclosure Polymers formed by incomplete esterification of the hydroxy groups of a water-soluble polymer such as polvinyl alcohol,amylose or dextran with a pharma-cologically acceptable mono- or di-carboxylic acid to an extent sufficient to render the polymer water-insoluble although still water-swellable, are biode-gradable. They are useful for the formulation of pharmaceutical compositions for parenteral administra-tion, particularly in the form of injectable fine particles in which a drug is intimately mixed with or encapsulated by the polymer.
Patent CA-1138168-A (CA)
Title: Biaxially stressed fluorinated polymer roll cover and   method for making same
Inventor: CHAPMAN HARRY S
IPC: B29C61/02
Filed: 1981-11-30
Granted: 1982-12-28
Abstract: Abstract of the Invention A biaxially heat shrinkable sleeve, a prism which is usually a roller having its lateral area covered with a biaxially heat shrunken sleeve and the method for covering the lateral area of a prism such as a pro-cess roller with a biaxially heat shrunken sleeve.
Patent CA-1191204-A (CA)
Inventor: DUROV JURY N
IPC: H02J1/00
Filed: 1982-02-04
Granted: 1985-07-30
Abstract: A b s t r a c t A device for monotoring thyristors of high-voltage val-ve comprises thyristor voltage detectors coupled via light guides to a buffer storage unit through a selector, Also pro-vided are an OR gate assembly, an adder, a memory unit, and a comparison unit, which are placed i series and coupled to a control unit.  The OR gate assembly is connected to the buffer storage unit which is also coupled to the control unit. A second input of the comparison unit is connected to a second output of the adder, while its output is connected to an indicator signalling the quantity of disabled thyristors and to a unit protecting the high-voltage valve against breakdown. The selector is also connected to an indicator signalling the numbers of disabled thyristors.  The hereinproposed device features high reliability in determining the quantity of disabled thyristors.
Patent CA-1143507-A (CA)
Inventor: MATALON RALPH
IPC: B22C1/26
Filed: 1982-02-25
Granted: 1983-03-29
Abstract: A B S T R A C T         The present invention concerns the use of an aqueous solution of n silicate as a binder, particularly for hardening foundry molds and cores without the use of acid or other re-agents to convert the silicate into a silica gel.   According to the present invention, the silicate binder is not reacted but instead is rapidly dried, preferably enough within the space of 5 seconds to 10 minutes to reduce the initial water content of the aqueous silicate solution by at least 25%.   In the preferred embodiments, this is achieved by forcing air through opposed porous sides of the mold box and the green sand contained therein. The present invention is also applicable to other composite forms such as the manufacture of plywood, particle board, birquettes, and the like.
Patent CA-1179830-A (CA)
Inventor: STUART BRUCE W
IPC: B65D63/16
Filed: 1982-03-09
Granted: 1984-12-27
Abstract: STRAPPING BUCKLE CONSTRUCTION            Abstract of the Disclosure:         A unitary clamp or buckle for use in conjunction with fabric or other types of strapping is fabricated from polyethylene plastic and includes a body having a pair of locking arms formed integrally therewith, the body having a centrally located strap-receiving opening and bifurcations at the forward extremities thereof encompassing a pair of detent abutments engageable by retention openings in the forward extremity of the locking arms.  The bifurcations restrain the forward extremities of the locking arms from displacement from the detent abutments and also from lateral displacement in respect to each other.