baber/WOPTO huggingface dataset:
Patent CA-1044970-A (CA)
Inventor: BENJAMIN BENJAMIN C
IPC: F02M1/14
Filed: 1976-03-23
Granted: 1978-12-26
Abstract: ABSTRACT A vacuum break assembly for the carburetor of an internal combustion engine that acts in connection with a thermostatic controlled control to permit the carburetor choke valve to be closed during starting but provides a controlled gradual opening of the choke valve after starting.  The de-vice includes a valve with a precision bypass which is protect-ed from clogging by a filter element encapsulated by a member which also forms a part of the valve seat.
Patent CA-1078489-A (CA)
Inventor: LUCAS JOHN M
IPC: G01B11/30
Filed: 1976-05-05
Granted: 1980-05-27
Abstract: SURFACE SENSOR             ABSTRACT FOR THE DISCLOSURE         A device for continuously indicating the topo-graphical profile of the surface of a travelling paper web is provided by using a light source directed perpendicul-arly to the surface to illuminate areas on the surface no greater than about 1 mm in diameter.  Non-specular light reflected from the surface is detected by a pair of detectors arranged around the illuminated-area thereby to generate a pair of signals.  These signals are electrically processed by subtracting one from the other to obtain an indication of the slopes of the surface in the instantaneously illuminated areas thereby to obtain continuous indication of the topographical profile of the surface while substantially reducing the effects of local differences in reflectivity of the surface.
Patent CA-1084326-A (CA)
Inventor: LIND ERWIN
IPC: H05K3/00
Filed: 1976-06-11
Granted: 1980-08-26
Abstract: Abstract of the Disclosure This invention relates to a material for electrophotographic repro-duction, which comprises a conductive support having a sensitized photoconductive insulating layer thereon containing at least one photo-conductor and containing, as a sensitizer, a polymethine dyestuff cap-able of absorbing radiation of a wavelength within the spectral range of 400 to 550 nm.
Patent CA-1061887-A (CA)
Inventor: NAUDOT JEAN-CLAUDE
IPC: G01V1/24
Filed: 1976-07-14
Granted: 1979-09-04
Abstract: ABSTRACT     Apparatus for obtaining seismic data or information in the field comprises electrical communication paths established between seismic detectors distributed over the ground, and a digital seismic data recorder.  Each of the paths comprises a pre-amplifier, various filters, a regulable-gain amplifier, and finally a digitizer, or the paths have these elements at least partly in common.  The digitizer operates by carrying out random weighing;  it comprises a pseudo-random generator and at least part of the contents of this generator is loaded in parallel into a register.  The pseudo-random number thus obtained is converted into an analogue signal and is used for weighing a sample of the seismic signal in a comparator.   This gives a single bit each time, which is then recorded in the recorder.
Patent CA-1045169-A (CA)
Inventor: WHITAKER GLENN E
IPC: B65G47/90
Filed: 1976-09-28
Granted: 1978-12-26
Abstract: TITLE          AUTOMATED SYSTEM FOR LOADING WOOD GRINDERS       ABSTRACT OF THE DISCLOSURE           An automated system is disclosed for continuously feeding a supply a logs to the log holding magazines of one or more wood grinders on demand.  A conveyor system conveys logs to a log holder which receives and forms a series of logs into a shaped charge.  The shaped charge is discharged from the log holder to a loading station without change in the shape thereof.  Overhead hoist-grapple carriers traveling on a monorail between the loading station and one or more wood grinding machines transfer the shaped charge from the loading station to an unloading station.  Each carrier includes a grapple connected to the hoist whose arms, when closed, have an internal configuration conforming to the outer dimensions of the shaped charge.  At the loading station, the grapple is lowered to pick up the shaped charge.  After pickup of the load, the hoist raises the load and the carrier moves to a "ready" station.  On receipt of a signal for wood from one of the wood grinders, the carrier delivers the shaped charge above the log holding magazine of a wood grinding machine and releases the shaped charge into the magazine.  Sensing means are provided in each of the log holding magazines of the wood grinders which sense the level of wood there-in and signal the carriers for additional wood supply when needed.  A control system automatically controls movement of the carriers between the loading and unloading stations as well as controlling and unloading of the shaped log charge.
Patent CA-1060159-A (CA)
Inventor: FULTON LOYD R
IPC: B60P1/00
Filed: 1976-11-15
Granted: 1979-08-14
Abstract: ?ITLE COMBINATION TAILGATE AND LOADING RAMP          ABSTRACT OF THE DISCLOSURE          A panel mounted at the rear of a truck having a flatbed which is capable of functioning as either a tailgate or a loading ramp.  In the tailgate configuration, a longi-tudinal edge of the panel is pivotally secured across the rear edge of the truck bed.  In its upright position, the panel forms an end wall enclosing the bed, and in its down position, it forms a flush, horizontal extension of the bed.  The panel is placed in its loading ramp configuration by rotating one corner along a vertical axis until a side edge contacts the rear edge of the truck bed. The side edge is then pivotally secured adjacent the rear edge of the bed, with the top surface of the panel flush with the top surface of the bed.
Patent CA-1071428-A (CA)
Inventor: CHADWICK DUANE G
IPC: G01K1/12
Filed: 1976-12-14
Granted: 1980-02-12
Abstract: ABSTRACT OF THE DISCLOSURE A device having heat transfer characteristics  generally corresponding to an egg and including an indicating means to indicate when a desired degree of cooking of an egg, of any size, subjected to the same treatment as the device, has been achieved.  The device is produced by suspending a properly insulated thermometer in a transparent tube with an air space substantially surrounding the thermometer and thereafter sealing the open end of the tube.
Patent CA-1089405-A (CA)
Inventor: CUTLER LEONARD H
IPC: A01P3/00
Filed: 1977-03-08
Granted: 1980-11-11
Abstract: ABSTRACT OF THE DISCLOSURE         Dialkyldithiocarbamates are electrolytically oxidized to tetraalkylthiuram disulfides in a direct current electrolytic cell divided into a cathode compart-ment and an anode compartment separated from each other by a cationic membrane.  The anode is stationary and has active surfaces of shiny platinum.  Tetraalkylthiuram disulfides are obtained in high yield and in high degree of purity.  The product tetraalkylthiuram disulfides are useful as vulcanization accelerators, fungicides, and seed treating agents.
Patent CA-1071261-A (CA)
Inventor: KUNZLE OTHELLO
IPC: F16L37/127
Filed: 1977-03-18
Granted: 1980-02-05
Abstract: ABSTRACT OF THE DISCLOSURE           A quick coupling device for maintaining in axial flow-through alignment a first flow-through member with a second flow-through member, the first member having clamping means attached thereto coacting with a flange means of the second member to provide a sealing relationship between the first and second members.
Patent CA-1081120-A (CA)
Inventor: DAVENPORT JAMES D
IPC: A01N43/80
Filed: 1977-03-30
Granted: 1980-07-08
Abstract: Abstract of the Disclosure Novel fungicidal compositions and methods for reducing the adverse effects of fungal foliar phytopathogens comprise the use for plant protection of a class of isoxa-zoles having a phenyl or substituted-phenyl group at the 3-position and a substituted methyl group at the 5-position.
Patent CA-1059551-A (CA)
Inventor: BLOSE THOMAS L
IPC: E21B17/042
Filed: 1977-04-21
Granted: 1979-07-31
Abstract: ABSTRACT         A pipe joint includes pin and box members having interengaged two-step threads and interengaged annular shoulders characterized as producing hoop tension in the pin member and hoop compression in the box member, and preventing radial and axial separation of the members.
Patent CA-1073165-A (CA)
Inventor: MACY ROBERT L
IPC: E01D15/12
Filed: 1977-04-29
Granted: 1980-03-11
Abstract: ABSTRACT OF THE DISCLOSURE             A portable structure which consists of a plurality of I beams placed side by side and hinged together in a parallelogram fashion such that adjacent I beams may be folded together.
Patent CA-1073552-A (CA)
Title: Constant modulation index technique for measuring the derivatives of device parameters
Inventor: DIXON RICHARD W
IPC: G01R29/00
Filed: 1977-05-13
Granted: 1980-03-11
Abstract: Abstract of the Disclosure Described is a technique for generating directly certain derivatives of device parameters by measuring the device response to ac modulation under conditions of constant modulation index.  In particular, the technique as it applies to measuring directly idF/di and i2d2P/di2 for A1CaAs DN p-a junction lasers is described for two cases: where the generalized function F equals either voltage V across the laser or the light intensity output L of the laser, and i equals current through the laser.  For p-n junction lasers this technique permits measurement of the series resistance R?, lasing current threshold ith and the exponential factor?=q/mkT.
Patent CA-1096588-A (CA)
Inventor: SUBRAMANIAN KOHUR N
IPC: C22B7/04
Filed: 1977-05-24
Granted: 1981-03-03
Abstract: ABSTRACT OF THE DISCLOSURE          A hydrometallurgical process for treating copper refinery anode slimes containing selenium, lead and precious metals in which a selenium product of better than 99.7% purity can be produced and the final residue is suitable for smelting to produce anodes for silver refining.
Patent CA-1097198-A (CA)
Inventor: MINATO SADAMASA
IPC: G01N33/68
Filed: 1977-05-31
Granted: 1981-03-10
Abstract: ABSTRACT OF THE DISCLOSURE         The determination of the activity of an enzyme in a medium is effected by a method in which a substrate which gives a free aromatic primary amine on treatment with the enzyme is contacted with the medium and the amine produced is estimated colorimetrically using as a colour reagent an alkali metal pentacyanoammineferroate which has been treated with an oxidising agent comprising hydrogen perioxide or a salt of an inorganic peracid.  The method can be effected using a diagnostic kit containing the substrate, the colour reagent and a buffer.
Patent CA-1093483-A (CA)
Inventor: BONOMO FRANCO
IPC: F16L57/00
Filed: 1977-06-06
Granted: 1981-01-13
Abstract: ABSTRACT OF THE DISCLOSURE:           The propagation of cracks in a gasline is inhibited by surrounding portions   of the gasline spaced along the  length thereof by a strengthening element without inducing compression stresses in the pipe wall.  This strengthening element is such that in each surrounded portion of the gasline the following relationship applies,   where Cva is the Charpy energy per unit area measured transversely of the unstrengthened gasline and Cveq is the equivalent Charpy energy per unit area of the strengthened portions of the gasline and represents the sum of the Charpy energy per unit area (measured transversely) of the portion of the gasline and the Charpy energy per unit area of the strengthening element surrounding the portion.  It has been unexpectedly found that when this relationship is met, a crack propagating with a constant speed of 300 m/sec. or less along the gasline stops within a distance of one metre after reaching the strengthened portion.
Patent CA-1070871-A (CA)
Inventor: BRANDS ANTOON H
IPC: G01S7/06
Filed: 1977-06-08
Granted: 1980-01-29
Abstract: ABSTRACT A control unit for the brightness of video signals on a raster scan display is provided with a random-access memory.  The data stored in each element of this memory determines the brightness of the video signals on the raster scan display at a position corresponding with this element.  In res-ponse to the video data supplied to the control unit and the brightness data in the random-access memory a logical unit provides new brightness data which overwrites the brightness data in the memory.
Patent CA-1047861-A (CA)
Inventor: SAKURAI YOSHITOSHI
IPC: F02B1/04
Filed: 1974-12-24
Granted: 1979-02-06
Abstract: ABSTRACT OF THE DISCLOSURE           An internal-combustion spark-ignition V-8 piston engine has an exhaust gas reaction chamber body positioned between its two banks of cylin-ders.  Each cylinder has a main combustion chamber communicating with an auxiliary combustion chamber by means of a torch opening.  A main intake manifold with branching portion over the reaction chamber communicates with main intake passages to supply a lean air-fuel mixture to the main combustion chambers.  An auxiliary intake manifold with branching portion directly below the central portion of the branching portion of the main intake manifold com-municates with auxiliary intake passages to supply a rich air-fuel mixture to the auxiliary combustion chambers.  Exhaust passages supply hot exhaust gases from the cylinders to exhaust gas conduits, each of which receives hot exhaust gases from two adjacent cylinders and projects through an insulated wall of the reaction chamber to discharge into it toward an end wall thereof. An exhaust pipe extends through a remote end wall at the opposite end of the reaction chamber.  The top wall of the reaction chamber has an exhaust nozzle formed therein facing the branching portion of the auxiliary intake manifold.  Also, the top wall of the reaction chamber has a layer of insula-tion within it and an opening formed to face the branching portion of the auxiliary intake manifold.  Within the peripheral wall of the exhaust gas reaction chamber body is formed an annular cooling water jacket, and a heat shielding plate covers the outer bottom portion of this exhaust gas reaction chamber body.
Patent CA-1051129-A (CA)
Inventor: GROSS NATHAN
IPC: A47C23/00
Filed: 1977-06-16
Granted: 1979-03-20
Abstract: MODULAR BOX SPRING ASSEMBLY                     Abstract of Disclosure A box spring assembly  having a rectangular frame mount-ing a plurality of lateral support slats, formed wire torsion springs affixed to said slats and a metal grid interconnecting said springs.  To minimize sag resulting from body weight, the support slats adjacent the lateral center line of the frame are first reinforced with U-shaped metallic bars which rest the wooden slats.  In addition, the number or density of lateral slats adjacent this center line are increased leaving a lower density of slats adjacent the head and foot ends of the as-sembly.  This arrangement of lateral slats permits a reorienta-tion of the formed wire spring units which further results in greater lateral stability of the box spring unit.  The assembly is then completed by adding one or more insullating pads for cushioning and a fabric cover.
Patent CA-1127896-A (CA)
Inventor: BOYD MICHAEL D
IPC: F24S23/70
Filed: 1977-07-19
Granted: 1982-07-20
Abstract: TITLE         RADIANT ENERGY REFLECTING STRUCTURES            ABSTRACT      Radiant energy reflecting structures are described which are elongate and which have a plurality of reflecting elements on or in their surface.  Each reflecting element has a "major axis" of reflection (the term "major axis" is defined in this specification) and a feature of the reflecting structures is that the direction of the "major axis" varies progressively with the transverse position of a reflecting element on the structure.  The reflecting surfaces of the reflecting elements may be formed as corrugated, elongate, planar reflectors.  Alternatively they may be formed as a known form of retro-reflective surface construction.  Preferably, the reflecting surfaces are overlaid with a transparent medium.  The structures may be used to construct louvred radiant energy screens.
Patent CA-1083586-A (CA)
Inventor: KAPLAN JEAN-PIERRE
IPC: C07D207/09
Filed: 1977-08-04
Granted: 1980-08-12
Abstract: A B S T R A C T     Optically active N-substituted-2-aminomethyl-pyrrolidines useful in the synthesis of substituted benzamides of therapeutic interest are made by a series of reactions from (R)- or (S)-glutamic acid, (R)- or (S)-proline or compounds derived therefrom such as pyroglutamic acid or prolinol.
Patent CA-1102241-A (CA)
Inventor: BRONNER EMANUEL H
IPC: A61K9/00
Filed: 1977-09-23
Granted: 1981-06-02
Abstract: ABSTRACT        A contraceptive containing device including a contraceptive gel having a pH of less than 3.0; an elongated casing containing the gel and having an insertion end extending beyond the gel; and a hygenically sealed pouch enclosing the casing. The seal at one end of the pouch overlaps the insertion end of the casing to secure the casing to the pouch and close the insertion end of the casing. The casing is weakened in a region near where it is secured to the pouch for tearing when the pouch is opened to expose the casing and the casing is pulled with respect to the overlapping end of the pouch so as to provide a shearing stress in the casing near the insertion end, for thereby separating the casing from the pouch.
Patent CA-1108247-A (CA)
Inventor: NELLIGAN WILLIAM B
IPC: G01R23/15
Filed: 1977-10-12
Granted: 1981-09-01
Abstract: METHODS AND APPARATUS FOR ENHANCING      RESOLUTION IN PULSE ANALYSIS                      ABSTRACT OF THE DISCLOSURE     Methods and apparatus are disclosed for selecting, among input signals, those which are time-spaced from each other by more than a predetermined time interval.  Clock pulses are continuously applied to a pulse counter, and a predetermined count signal is produced each time the counter reaches a prede-termined count.  The counter is reset upon occurrence of either an input signal or a predetermined count signal.  The order of occurrence of the input signals and of the predetermined count signals is memorized, and a validation signal is produced for each input signal which is directly preceded and followed by a predetermined count signal.  Signals distorted by pile-up effect can thus be rejected.     ...
Patent CA-1095845-A (CA)
Inventor: REALE LUCIO V
IPC: C10G1/00
Filed: 1977-12-12
Granted: 1981-02-17
Abstract: ABSTRACT OF THE DISCLOSURE         A process and apparatus for separating tar from a tar sand mixture.  The separating step is by a novel mechanical process avoiding the complication of heating, freezing, and the use of solvents.  In the process a suitable suspension liquid is added to a tar sand mixture which is then struck with a plurality of striker arms to separate tar from sand particles and agglomerate tar into droplets.  After the striking step, the sand particles are allowed to settle to the bottom and tar droplets rise and float, the tar droplets. are skimmed off the mixture, and the tar droplets are also scraped off the striker arms.  The resulting tar droplets are washed at least once to remove remaining sand particles.
Patent CA-1072985-A (CA)
Inventor: WATSON SPENCER C
IPC: C07C43/20
Filed: 1978-02-09
Granted: 1980-03-04
Abstract: Abstract of the Disclosure This invention relates to the preparation of unsaturated alcohols useful as flavor and fragrance compounds. More specifically, this invention re-lates to the preparation of predominately cis-unsaturated alcohols by reacting a cis-l-alkenyl-aluminum dialkyl compound with an epoxide compound followed by hydrolysis.  The alkenyl moiety has one or more double bond carbon-to-carbon linkage and from 5 to 20 carbon atoms that can be option-ally substituted with the substituents selected from alkyl and aromatic radicals having 1 to 12 carbon atoms.
Patent CA-1084899-A (CA)
Inventor: TAYLOR DONALD F
IPC: E21B17/18
Filed: 1978-04-28
Granted: 1980-09-02
Abstract: SWIVEL CONNECTOR            Abstract of the Disclosure A swivel connector for joining well tools or similar appa-ratus with a main longitudinal bore or passage through which well operations may be conducted and at least one separate passage for conducting fluid therethrough which extends through the swivel joint and is not blocked by rotation or pivoting of the swivel joint.  This abstract is neither intended to define the invention of the application which, of course, is measured by the claims, nor is it intended to be limiting as to the scope of the invention in any way.
Patent CA-1093336-A (CA)
Inventor: FENRICK WALTER J
IPC: G01N21/31
Filed: 1978-05-18
Granted: 1981-01-13
Abstract: Abstract of the Disclosure The invention disclosed relates to a filter assembly for use in conjunction with photometric detectors e.g. flame photometers.  Conventional equipment of this nature only permits the monitoring of the light radiation characteristic of a single chemical reaction, whereas the present invention permits the monitoring of several chemical reactions by providing a quick change filter assembly which includes a plurality of different optical filters.  The filters are selectively moved into an operating position such that light emitted as a result of a chemical reaction being monitored passes through the filter before being exposed to a photoelectric detector.
Patent CA-1082935-A (CA)
Title: Heating and cooling system and method
Inventor: SISK FRANCIS J
IPC: F25B30/02
Filed: 1978-05-31
Granted: 1980-08-05
Abstract: HEATING AND COOLING SYSTEM AND METHOD                     Abstract of the Disclosure A vapor compression heating/cooling system and method of operation having improved Coefficient of Performance and Capacity.  Post-condenser liquid is cooled in a subcooler coil by a stream of air.  One embodiment provides a warming machine or heat pump in which the condenser coil is within a volume to be warm and the evaporator coil is on the outside exposed to ambient air.  A stream of ambient air is pumped in heat exchange relationship with the subcooler coil to recover and expel heat from the coil into the volume.  Where the volume comprises the interior of a house or other building structure the stream of air from the subcooler creates an over pressure within the volume to minimize infiltration of ambient air.  In another embodiment the system is employed for refrigerating a volume such as a reefer trailer or other mobile compartment.  The evaporator coil is within the com-partment and the condenser coil is outside the compartment exposed to ambient air.  A stream of air from the compartment is directed by a duct in heat exchange relationship with the subcooler coil and thence to ambient for expelling heat from the post-condenser liquid.
Patent CA-1119619-A (CA)
Inventor: BEYLEVELD WILHELMUS M
IPC: C07C67/00
Filed: 1978-07-14
Granted: 1982-03-09
Abstract: ABSTRACT OF THE DISCLOSURE             Novel peroxyketals having the general formula   are provided.  The peroxyketals can be used to advantage for intiating the copolymerisation reaction of ethylenically unsaturated compounds such as unsaturated polyester resins containing both an unsaturated polyester and an ethylenically unsaturated monomer such as styrene.  Process for preparing these peroxyketals are also disclosed.
Patent CA-1094601-A (CA)
Inventor: PIATEK EDWARD
IPC: F16L37/12
Filed: 1978-08-01
Granted: 1981-01-27
Abstract: COUPLING ABSTRACT OF THE DSICLOSURE The invention provides a coupling for releasably securing one end of a rod-like member.  To this end a body is dimensioned to receive the rod end and support a locking element.  The locking element is displaceable with respect to the body to engage the rod end and is associated with rotatable camming means.  Partial rotation of the camming means imparts a camming action to force the locking element into locking engagement with the rod end and further rotation of the camming means withdraws the element to unlock the rod end.  The locking partial rotation of the camming means is through an arc of sub-stantially 90° and the unlocking further rotation is through a similar arc in the same or the opposite direction.