baber/WOPTO huggingface dataset:
Patent CA-1091938-A (CA)
Inventor: DEVRIES ROBERT C
IPC: B24D3/00
Filed: 1975-05-02
Granted: 1980-12-23
Abstract: METHOD FOR THE WORK-HARDENING OF DIAMONDS               Abstract of the Disclosure Extensive development of deformation bands in diamond crystals results from subjecting diamond material pro-perly confined to reduce or eliminate brittle fracture thereof to the simultaneous application of high pressure and temperature in a defined region on the carbon phase diagram, the pressures and temperatures being incapable of bringing about significant crystal-to-crystal bonding of diamond,  Plastic deformation resulting in work-hardening of these diamonds can he made to occur at temperatures as low as 900°C at pressures of about  60 kb.          A work-hardened diamond for use in a single-point diamond tool would, for example, be prepared by embedding the diamond in diamond powder to fill the volume thereby inhibiting brittle fracture of the diamond being work-hardened.
Patent CA-1051600-A (CA)
Inventor: IDSTROM BO T
IPC: C08G18/32
Filed: 1975-10-02
Granted: 1979-03-27
Abstract: A PROCESS FOR THE PREPARATION             OF POLYURETHANE FOAM     ABSTRACT OF THE DISCLOSURE     A process is provided for the preparation of soft hydrophilic polyurethane foam using a polyether polyol mixture having a high proportion of primary alcohol groups and a selected ratio of polyisocyanate to polyol.
Patent CA-1061910-A (CA)
Inventor: THACKER CHARLES P
IPC: G06F9/48
Filed: 1975-10-09
Granted: 1979-09-04
Abstract: TASK HANDLING IN A DATA PROCESSING APPARATUS                   ABSTRACT OF THE DISCLOSURE            A data processing apparatus for processing digital data in accordance with a plurality of predetermined tasks of preassigned priority values and identified by a respective plurality of devices connected to the data process-ing apparatus.  Each device is capable of generating the respective task request signal when requiring service by the data processing apparatus.  The data processing apparatus includes a first memory for storing a plurality of executable instructions, a second memory for storing addresses of locations in the first memory, a priority determining device responsive to the task request signals for generating a control signal indicative of the task request signal having the highest current priority value, and an addressing device responsive to the control signal for providing an address to the second memory, the addressed location in the second memory containing the next address of the first memory to be accessed for continuation of the processing of the requesting task and thus servicing of the respective device, wherein said next address is a part of an executed instruction.
Patent CA-1065894-A (CA)
Inventor: CARLSSON ENAR I
IPC: A61K31/275
Filed: 1975-10-31
Granted: 1979-11-06
Abstract: Abstract of the Disclosure This invention relates to compounds of the formula I                                          (I) wherein R1 is selected from the group consisting of hydrogen and methyl and R2 is selected from the group consisting of hydrogen, methyl, ethyl, propyl, allyl, methoxy, propargyloxy, cyano, morpholino, pyrrolidino and pyrrolyl R3 is selected from the group consisting of hydrogen, methyl and ethyl, and R4 is selected from the group consisting of hydrogen and methyl, provided that R2 ant R4 are not both hydrogen.  These compounds are prepared according to known methods.  They are useful in the treatment of cardiovascular disorders, including arrythmias, angina  pectoris and hypertension.
Patent CA-1053707-A (CA)
Inventor: PISTORIUS RUDOLF
IPC: C07C41/00
Filed: 1975-12-19
Granted: 1979-05-01
Abstract: Abstract of the Disclosure: p-Benzoquinone diketals of the formula   wherein R is H, an alkyl group having from 1 to 4 carbon atoms or a halogen atom, preferably H, CH3, Cl of F, are prepared by anodic oxidation of benzene or alkoxybenzenes of the formula   or              wherein R has the aforesaid meaning and R1 is an alkyl radical having of from 1 to 4 carbon atoms in CH3OH containing a)    less than about 5 % by weight of H2O as well as b)    about 0.2 to 15 % by weight, calculated on the electrolyte, of at least a conducting salt selected from the group of ammonium and alkali flourides, perchlorates, nitrates, tetrafluoroborates, hexafluorosilicates, hexafluorophos-phates, benzene sulfonates, p-toluene sulfonates, quarte-nary ammonium and phosphonium fluorides as well as methyl-sulfates and additionally c)   optionally about 0.5 to 10 % by weight, calculated on the electrolyte, of a base to be oxidized with difficulty, preferably 2,6-lutidine, at a known anode made of a conventional material, at a tempe-rature of from about -20 to +60°C.  When using as starting ma-terial an alkoxybenzene wherein the group OR1 contains an al-kyl radical having of from 2 to 4 carbon atoms, the resultant p-benzoquinone tetramethyl diketal contains a small quantity of the corresponding trimethyl alkyl diketal having an alkyl group of from 2 to 4 carbon atoms in the alkoxy group. The diketals obtained may be converted into the corresponding p-quinones by acidic hydrolysis and are, consequently valuable intermediates for the preparation of the latters as well as for the transformation into the corresponding hydroquinones, which in their turn may be used in known manner in photgra-phic, as stabilizers for monomers, as starting material for the dyestuff preparation etc.
Patent CA-1075593-A (CA)
Title: Atmospheric cooling plant for cooling a potentially corrosive liquid containing substances capable of precipitation
Inventor: COUNE ALBERT G R
IPC: F28F19/00
Filed: 1976-01-08
Granted: 1980-04-15
Abstract: ABSTRACT OF THE DISCLOSURE           The invention concerns improvements to atmospheric cooling plants used for cooling corrosive liquids capable of pre-cipitating deposits on the walls.  The walls are protected by smooth waterproof cloths made preferably of glass fibre-reinforc-ed polyester coated with polyvinyl chloride,  the cloths are suspended from spars supporting the ceiling of the enclosure, and are constantly moved by the air blown into the enclosure, so that incrustations are detached and fall into the basin of cooled liquid.  The invention allows cooling of such liquids with opti-mum efficiency without risk of corrosion or of accidents to personnel.
Patent CA-1060927-A (CA)
Inventor: PENNER JACOB
IPC: B60P7/04
Filed: 1976-01-27
Granted: 1979-08-21
Abstract: ABSTRACT OF THE DISCLOSURE      This is a cover assembly for open truck boxes in which a pair of longitudinally extending guides are situated one upon each side on the upper edges of each of the sides of the truck box.  Means similar to a roller blind device are situated at one end of the truck box and the flexible cover is rolled onto this roller and the spring therein normally maintains the cover upon the roller.  Cables run through each edge of the cover and are secured therein and these cables together with the cover surrounding same are engaged within the guide means on the side of the box to guide the cover when extending and retract-ing same and to maintain the side edges of the cover in engage-ment with the guide means.  The cable extends over pulleys at each end of the guide means and is connected to a winch for pulling the cover outwardly against the spring pressure of the roller.  When the winch is reversed, the spring pressure of the roller rolls up the cover and stores same until needed.
Patent CA-1041197-A (CA)
Title: Control system for controlling translational speed of carriage with respect to rotational speed of mandrel
Inventor: ALLEN RICHARD W
IPC: B05B13/04
Filed: 1976-02-17
Granted: 1978-10-24
Abstract: ABSTRACT OF THE DISCLOSURE           A reciprocable carriage carries means for dispensing hardenable liquid resin and reinforcing glass fiber material on a rotatable mandrel to produce a tank wall.  The control system includes means for maintaining the carriage speed constantly proportional to the mandrel speed to produce a cylindrical por-tion of a tank wall and means for continuously changing the car-riage speed at a constant rate with respect to the mandrel speed to produce a conical portion of a tank wall.
Patent CA-1060745-A (CA)
Inventor: BUUCK ROBERT E
IPC: A61F13/20
Filed: 1976-02-23
Granted: 1979-08-21
Abstract: PENILE ERECTION SYSTEM AND METHOD OF IMPLANTING AND USING SAME The prosthesis comprises a pair of expandable cylinders which are implanted in the penis, replacing the function of the two corpora cavernosa.  Supplying fluid to the expandable cylinders is a fluid transfer mechanism that is also implanted in the patient's body so as to permit inflation of the cylinders when an elastomeric bulb is squeezed through the person's skin.  In addition to the elastomeric bulb, the fluid transfer system includes a reservoir, a first check valve between the bulb and reservoir, a second check valve between the cylinders and bulb, and a special valve that can be manually operated to  bypass the check valves. In this way, the degree of erection of the penis is controlled by varying the amount of fluid within the prosthetic cylinders by squeezing the elastomeric bulb; deflation is accomplished by actuating the by-pass valve.
Patent CA-1082553-A (CA)
Inventor: ADAIR EDWIN L
IPC: A61F7/00
Filed: 1976-02-25
Granted: 1980-07-29
Abstract: URETHRAL CATHETER AND BODY              Edwin L. Adair DRAINAGE DEVICE     ABSTRACT OF THE DISCLOSURE     Catheter of the telescope tube, expandable wing type, characterized by the provision of alternative forms of means for preventing outward leakage from between the tubes, the leakage preventing means also serving the additional purpose of retaining the wings in expanded position.          Alternative forms of tube distal ends are disclosed including one form for removing clots from blood vessels.  Also, a stiff trochar rod may be employed with various forms of seals and the tube distal ends.
Patent CA-1063726-A (CA)
Inventor: LEEDOM MARVIN A
IPC: G11B21/12
Filed: 1976-03-05
Granted: 1979-10-02
Abstract: SIGNAL PICKUP RETURN MECHANISM                Abstract of the Disclosure In a system for playing back prerecorded infor-mation from a disc record by a signal pickup mounted in a support housing, a signal pickup return mechanism is provided.  The support housing is reciprocably mounted in the player cover by a suitable bearing.  A drive mechanism drives the support housing radially inward in order to facilitate tracking of the disc record by the signal pickup.  An extendible cord is provided with its ends attached to the base and the cover of the player.  The cord extends when the cover is raised from the base.  A leaf spring, with an open-ended slot, is attached to the support housing.  The cord is threaded through the open-ended slot.  A clamp secured to the cord is subject to engagement with the support housing, and is effective only in causing radially outward movement of the support housing.  The clamp urges the support housing to return to a rest position when the cover is raised from the base.
Patent CA-1065508-A (CA)
Inventor: HINES DAVID A
IPC: B03D1/14
Filed: 1976-04-07
Granted: 1979-10-30
Abstract: ABSTRACT OF THE DISCLOSURE         Solids-liquid separation wherein a solids-liquid mixture containing dissolved oxygen-containing gas is cir-culated around a circulatory system comprising a downcomer and a riser, part of the mixture in the riser being introduced into a flotation chamber in which the hydrostatic pressure gradually decreases as the mixture flows upwards, with con-sequent release from solution of gas bubbles which carry solid particles to the top of the mixture.
Patent CA-1037998-A (CA)
Inventor: MARTIN JOHN C
IPC: B60P1/32
Filed: 1976-04-26
Granted: 1978-09-05
Abstract: A B S T R A C T     A dump truck having a telescoping container body which is initially telescoped to a reduced length to discharge a portion of the load therefrom in response to the telescoping action and thereafter elevated to discharge the remainder of the load in the manner of a conventional dump truck.  The fully extended length of the container body, which determines the load carrying capacity of the container body, is greater than that which would normally be elevated to directly discharge the load therefrom in the manner of a conventional dump truck.  The re-tracted length of the container body is no greater than the acceptable length of a container body for elevating to dump a load in a conventional manner.  The improvement in a dump truck consists of a container body which has a front section and a back section telescoped one within the other and a first drive mechanism associated with a front section for driving the front section longitudinally of the frame between the extended and re-tracted positions and a second drive mechanism associated with the back section for moving the back section from its lowered position to its elevated position to dump a load therefrom.
Patent CA-1036546-A (CA)
Inventor: YOUL GAVIN B
IPC: A01D87/00
Filed: 1976-05-11
Granted: 1978-08-15
Abstract: LIFTING AND HANDLING APPARATUS     ABSTRACT OF THE DISCLOSURE           Lifting and handling apparatus for use in agriculture, including a frame having ground engaging wheels adjacent one end and being connectable to a tractor or other prime mover at its other end.  A load support cradle is connected to the frame and comprises a base section and a back section which is upstanding from a rear edge portion of the base section.  The cradle is connected to the apparatus frame through a linkage system so as to be movable relative to the frame between a loading position in which it projects beyond the end of the frame adjacent the wheels, and a carrying position in which it is located above the frame.  Drive means attache to the frame is operable to cause the aforementioned movement.  The linkage system includes articulated links on both sides of the frame which interact between the frame and cradle so as to cause automatic lifting and tilting of the cradle during its movement from the loading position to the carrying position.          The arrangement is such that in the loading position, the base section is substantially horizontal, and in the carrying position both the base and back sections slope relative to the horizontal and the junction between those sections is located between a vertical plane containing the wheel axle and the connection with the tractor or other prime mover.
Patent CA-1051975-A (CA)
Inventor: ESPELAGE PAUL M
IPC: H02M5/04
Filed: 1976-05-20
Granted: 1979-04-03
Abstract: ABSTRACT OF THE DISCLOSURE A polyphase cycloconverter operating in regenera-tive mode is connected between a voltage distribution system and a single phase high frequency resonant tank and controlled to produce essentially no real power flow to the resonant tank and a variable amount of leading (or lag ?g) reactive power.  The static reactive power controller has fast response and can function as an electronically variable capacitor for power factor regulation, VAR control and adaptive filtering.
Patent CA-1037846-A (CA)
Inventor: GOLDSTEIN PETER
IPC: B60C27/12
Filed: 1976-06-10
Granted: 1978-09-05
Abstract: "AUTOMOBILE-TYRE SNOW CHAINS"              ABSTRACT OF THE DISCLOSURE     An automobile- tyre snow chain comprises running chain sections connected between a closed outer annular maintaining chain and an open inner maintaining chain. A long chain section is connected at one end to a first ring on one end of the inner chain and is looped through a second ring on the other end of the inner chain and through the first ring, so that the inner chain can be closed by pulling on the long chain section to tighten the loop. This long chain section includes a running chain portion which passes over the tyre and is secured to a buckle on the outer annular chain, the free end of the long chain section being threaded about the outer annular chain and secured by a tensioning spring and a buckle.
Patent CA-1042357-A (CA)
Inventor: ARRINGTON WILLIAM M
IPC: G11B19/02
Filed: 1976-06-16
Granted: 1978-11-14
Abstract: PORTABLE RECORDER CONTROL APPARATUS            Abstract of the Disclosure A portable disc recorder control apparatus operable both upon insertion of a recording disc and manipulation of a single control button.  After insertion and positioning of the disc, such functions and operations as special instruction recording, recording, stopping, ejecting, playing, and reviewing are controlled by the apparatus.          These functions and operations are initiated through the single control button.
Patent CA-1055833-A (CA)
Inventor: RAHMAN HABIBUR
IPC: B60N2/20
Filed: 1976-07-21
Granted: 1979-06-05
Abstract: TWO POSITION SEAT AND LOCK          ABSTRACT         A seat for mobile material handling equipment which is movable between two different seating positions about a horizontal, transverse axis and is provided with a lock mechanism which securely holds the seat in either of its two positions.
Patent CA-1093795-A (CA)
Inventor: HUME GRAEME R
IPC: B21D49/00
Filed: 1976-07-28
Granted: 1981-01-20
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention provides a method of producing a concrete pipe including the steps of immersing a tendon in a concrete pour mould forming a pipe, the mould having at least one longitudinal divider so that the cast pipe is longitudinally split, expanding the pipe radially outwardly to cause circumfer-ential movement between the tendon and concrete to thereby stress the tendon, filling the split with a filler to form a stressed cylinder, the improvement comprising the steps of applying an enclosing sheath means to said tendon, applying an anti-friction layer to the internal surface of said enclosing sheath means or to the tendon, said enclosing sheath means forming a non-rupturable pressure surface between the tendon and cured concrete.  The present invention also desirably provides a method of enclosing a tendon which is stressed and destined to be wrapped in tension around a concrete pipe comprising the steps of tensioning the tendon sufficiently to stress the pipe when thereon, applying an enclosing means to said tendon to seal the tendon from outside environment wrapping said tendon around said concrete pipe, maintaining said tendon in stressed condition.
Patent CA-1049929-A (CA)
Inventor: SPENCER DUDLEY W C
IPC: A01L3/00
Filed: 1976-09-08
Granted: 1979-03-06
Abstract: Abstract of the Disclosure Elongated strands are threaded through holes in a horse's hoof.  The strands have substantial exposed air spaces into which adhesive may flow for facilitating securement of the shoe to the hoof by interaction with the adhesive upon the shoe. Additionally, or alternatively the strands may be used to assist in the medical treatment of cracks in the hoof.  The strands have a breaking strength less than that of the horse's hoof.
Patent CA-1092290-A (CA)
Inventor: ANDRASCHECK HANS-JOACHIM
IPC: G11B3/70
Filed: 1976-09-10
Granted: 1980-12-23
Abstract: Abstract of the Disclosure:        A rigid polyvinyl chloride foil with modified impact resistance and free from plasticizer especially suitable for the manufacture of audio-visual information carriers with stamped spiral grooves from which the information is played back by pressure scanning.  The foil is characterized by a special combination of properties such as flow, reduction in length, toughness, surface resistance elasticity, peak-to-valley height and surface deposit.
Patent CA-1055618-A (CA)
Inventor: WILTING HERMANUS J H
IPC: H01L21/28
Filed: 1976-09-14
Granted: 1979-05-29
Abstract: ADSTRACT:           A method of manufacturing a metal silicide pattern with respect to which two electrode zones are to be provided in a self-registering manner.          According to the invention the pattern is provided in the form of a layer of polycrystalline silicon and, by selective oxidation and masking, only the upper surface of the pattern is exposed to the silicide formation so that passivation problems and shortcircuit are avoided. The use of sillicides which cannot withstand high temperatures is also possible.
Patent CA-1044446-A (CA)
Inventor: KUNTZSCH DONALD W
IPC: B25B13/06
Filed: 1976-09-21
Granted: 1978-12-19
Abstract: Abstract of the Invention A tool for inserting and extracting small objects such as lamp bulbs from relatively inaccessible areas.  The tool comprises a single molded plastic member having cup-like portions at opposite ends.  One cup is resilient and frictionally grips the object for removal, whereas the opposed cup is relieved by means of a radial slot to permit temporary retention of the object while it is being inserted and to freely release the object after it has been inserted.
Patent CA-1053819-A (CA)
Inventor: YODA KAZUHIRO
IPC: G02F1/1335
Filed: 1976-11-10
Granted: 1979-05-01
Abstract: ABSTRACT OF THE DISCLOSURE   A liquid crystal display device which provides one area which is transparent when the display electrodes are unenergized and which darkens in the regions of energized electrodes and which provides a separate area which is dark when the electrodes in that area are unenergized, but which lightens when those electrodes are energized.     Electrodes may overlap from one area into the remaining part of the display so that energization of such an electrode produces lightening in the area portion, but darken-ing where the electrodes overlap into the remaining part of the display.
Patent CA-1081385-A (CA)
Inventor: REISCHL ARTUR
IPC: C08G18/40
Filed: 1976-11-12
Granted: 1980-07-08
Abstract: Abstract of the Disclosure This invention relates to a process for the in situ preparation of stable dispersions of polyisocyanate-polyaddi-tion products in hydroxyl containing compounds as dispersing agent by a process which comprises reacting (1) organic polyisocyanates with (2) compounds having primary and/or secondary amino groups and/or primary hydroxyl groups and/or ammonia, in (3) compounds having at least on hydroxyl group, wherein compounds (3) have secondary hydroxyl groups in cases when compounds (20 have primary hydroxyl groups and wherein the components are reacted in the presence of more than 4% by weight of water, based on the quantity of reaction mixture including water.
Patent CA-1052603-A (CA)
Inventor: DICK RAYMOND P
IPC: F16B25/00
Filed: 1976-11-29
Granted: 1979-04-17
Abstract: A B S T R A C T        The tapered screw or bolt of this invention differs from conventional substantially straight screws by having at least the major threaded portion of the screw shank uniformly tapered to the tip with the thread of substantially uniform depth throughout its length and the opposite surfaces of the thread both sloping from the crest and meeting at a root juncture. A minor length area of the threaded portion of the shank adjacent the screw head may be substantially straight to the upper end of the tapered portion. A turnout lock may be provided on the threads.
Patent CA-1074051-A (CA)
Title: Medical glove and method
Inventor: STOCKUM GLENN F
IPC: A41D19/00
Filed: 1977-03-15
Granted: 1980-03-25
Abstract: A medical glove adapted to tightly conform to a wearer's skin and to be donned without the use of additional lubricants is formed with an outer layer of elastomeric material, an inner layer of elastomeric material bonded to the outer layer and particulate matter securely embedded in and randomly distributed throughout the inner layer.  The particulate matter is preferably partially exposed on the inner, skin-contacting surface of the inner layer so that it extends inwardly beyond the surface of the inner layer to provide a lubricating means to facilitate donning of the glove without the use of additional lubricants. A method for making the unique medical glove is also disclosed.