baber/WOPTO huggingface dataset:
Patent CA-1070045-A (CA)
Inventor: HAMMER CLARENCE F
IPC: C08G81/02
Filed: 1975-11-12
Granted: 1980-01-15
Abstract: ABSTRACT OF THE DISCLOSURE Process for the preparation of thermoplastic graft copolymers which comprises heating for about 15 seconds to 60 minutes, with mizing, a trunk copolymer of at least two monomers, at least one of said monomers pro-viding amine-reactive sites taken from the group consist-ing of the anhydride group, e.g., maleic anhydride; a vicinal pair of carboxylic groups and a carboxylic acid adjacent to an alkoxycarbonyl group, wherein the alkoxy group contains up to 20 carbon atoms, and at least one of said monomers containing no amine-reactive sites, and at least one side chain polymer having per chain one active amine site taken from the group consisting of primary and secondary amines, the remainder of said side chain polymer being substantially unreactive with the reactive sites, e.g., amino-substituted polycaprolactam, poly-laurolactam, polyethylene oxide, ect., of the trunk co-polymer.  The process provides control of the type and length of the side chain polymer grafted onto the trunk copolymer.  Plastic graft copolymers are included, specifically those containing one or more side chain polymer types with the proviso that when only one type side chain polymer is present the side chain polymer contains only one nitrogen atom. said atom being found in the active amine site.
Patent CA-1045154-A (CA)
Inventor: SHEN CHUNG Y
IPC: C07C51/00
Filed: 1975-12-04
Granted: 1978-12-26
Abstract: ABSTRACT OF THE DISCLOSURE     Diglycolic acid is prepared by oxidation of p-dioxanone with an oxidizing agent selected from HNO3, NO2, N2, O3, N2O4, N2O5, and mixture thereof.   The oxidation can be accomplished with less than half the quantity. nitric acid required for oxidation of diethylene glycol previously employed.
Patent CA-1045705-A (CA)
Inventor: FUNK CHARLES J
IPC: H04Q3/00
Filed: 1976-01-22
Granted: 1979-01-02
Abstract: NETWORK PATH TEST CIRCUIT          Abstract of the Disclosure A network path test circuit for testing call connections established through the switch network of a telephone toll switching office.  Common control equipment of the telephone toll switching office momentarily applies a tone signal to the transmit and receive paths of a call connection prior to outpulsing a called telephone station directory number.  Detector apparatus measures the impedance reflected back over the call connection to determine the absence and existence of path transpositions in the call connection.  The common control equipment is enabled to establish another call connection when the reflected impedance indicates path transpositions in the call connection.
Patent CA-1049605-A (CA)
Inventor: FELLWOCK CHARLES G
IPC: F25D23/04
Filed: 1976-02-10
Granted: 1979-02-27
Abstract: Abstract of the Disclosure Storage apparatus with a vertical door with a storage recess facing inwardly, a shelf in the recess, an article retain-ing open rack for easy viewing of the retained articles extend-ing across the recess in the vicinity of the shelf to retain articles within the recess and prevent their accidental dislodge-ment when the door is opened and closed and a cooperating guide and track on the door and the rack for guiding movement of the rack in a generally vertical path to an elevated position for exposing the shelf to provide ready access thereto in inserting and removing the articles.
Patent CA-1056070-A (CA)
Inventor: FERRO ARMAND P
IPC: H01L29/08
Filed: 1976-02-10
Granted: 1979-06-05
Abstract: ABSTRACT OF THE DISCLOSURE An integrated circuit and method in which optimized power and signal components are incorporated into a mono-lithic structure.  A suitable semiconductor substrate has an epitaxial layer of one conductivity type and having a relatively high resistivity formed thereon.  Isolation means extend through the epitaxial layer and separate it into at least a signal transistor region and a power transistor region.  A diffused pocket region is formed in the signal transistor region of the same conductivity type as the epitaxial layer but doped so as to provide a region of relatively low resistivity.  A power transistor is formed in the relatively high resistivity power transistor region and a signal transistor is formed in the relatively low resistivity diffused pocket region.
Patent CA-1050858-A (CA)
Inventor: KOCAY WITOLD R
IPC: D03D1/04
Filed: 1976-02-20
Granted: 1979-03-20
Abstract: ABSTRACT        Heat shrouds comprised of inherently low moisture regain polyamide filaments provide non-shedding durable meat shrouds suitable for conditioning meat carcasses without excessive dehydration.
Patent CA-1066055-A (CA)
Inventor: ENGLAND DONALD E
IPC: A63H13/04
Filed: 1976-03-15
Granted: 1979-11-13
Abstract: ARTICULATED DOLL                 ABSTRACT OF THE DISCLOSURE A doll having a movable head, and articulated appendages movably attached to the doll's torso.  An actuator and a gear transmission system are operatively connected to one of the doll's arms, for imparting incremental movement to the arm.  The trans-mission can be placed in gear, or taken out of gear, by manually rotating the doll's head.  By placing the transmission in gear and manipulating the actuator, the transmission is activated so that the doll's arm, and if desired, a light load placed in the doll's hand, can be slowly raised to an elevated position.
Patent CA-1049891-A (CA)
Inventor: ROLFES MARLAN J
IPC: B60D1/62
Filed: 1976-03-26
Granted: 1979-03-06
Abstract: TRACTOR-IMPLEMENT CONTROL SYSTEM                 Abstract of the Disclosure An agricultural tractor has a cab enclosed operator station and a pair of rearward hydraulic coupling elements, one of which is selectively connected to the tractor fluid pressure supply and the other of which is connected to the tractor reservoir by means of a control within the cab.  The tractor tows and powers a pull -type forage harvester having three hydraulic cylinders that respectively control the deflection of the discharge spout cap, the rotation of the discharge spout, and the transmission control lever that controls the rotational direction of the feed roll drive.  A valve package is removably mounted on the exterior of the cab rear wall and has a pair of inlet lines respectively con-nected to the tractor hydraulic coupling elements, three sets of hydraulic lines to the respective hydraulic cylinders on the for-age harvester, and three control valves for controlling the flow of fluid between the inlet lines and the three sets of outlet lines.  The control valves are controlled from within the tractor by three control levers pivotally mounted on the rear wall of the tractor and having rearward ends on the exterior of the tractor removably connected to the three control valves, the control valve package being mounted on the rearward wall of the tractor by means of a latching device that permits rearward separation of the control valve housing from the cab upon the application of a rearward force on the housing in excess of a predetermined amount, the control valves being freely separated from the control levers upon separation of the control valve housing from the cab.
Patent CA-1053039-A (CA)
Inventor: LIFSHITS VIKTOR S
IPC: B23D5/02
Filed: 1976-04-21
Granted: 1979-04-24
Abstract: DEVICE FOR REMOVING EXTERNAL CIRCULAR FINS          FROM PIPE JOINTS                 ABSTRACT OF THE DISCLOSURE      The herein-proposed device comprises a base, a hollow rotor with a faceplate, mounted in the base, carriages loca-ted on the rotor faceplate, a mechanism for radial traverse of the carriages, having a holder rotatably fitted on the rotor, and a drive for the rotor and the mechanism for traversing the carriages, characterized in that each of the carriages is provided with a roller adapted to trace over the surface of the pipes being treated, while the mechanism for radial traverse of the carriages is composed of links with one of their ends articulated to the holder and with the other end, to slide blocks, each of the latter being housed in a boring of the respective carriage with a pos-sibility of radial movement therein and being connected to a spring gauged for the cut-ting force, the other end of which spring thrusts against the bottom of the carriage boring whereas the drive of the rotor and of the carriage traversing mechanism has two output shafts, of which one is kinematically associated with the rotor, while the other shaft, with the holder, which drive is provided with a me-chanism for program control of the difference between the rotational speeds of said shafts.     The proposed device is adapted for removal of external circular fins left at the pipe joints after the resistance butt welding and ensures high productive efficiency and quality of machining, is capable of a uniform removal of fins round the entire pipe joint irrespective of whether the shape of the welded pipes is a true circle or departs therefrom, and enables fins of any cross-sectional shape left in the course of pipe welding, to be removed.
Patent CA-1077492-A (CA)
Inventor: LANG HANS-JOCHEN
IPC: A61K31/426
Filed: 1976-07-28
Granted: 1980-05-13
Abstract: Abstract of the disclosure The invention relates to thiazolidine derivatives of the general formula                 (I) having in 4-position a hydroxy group and a 3'-sulphamyl-phenyl substituent the phenyl ring of which is di-substituted by halogen or methyl, in 2-position an imino group and in 1-position an aliphatic or cycloaliphatic substituent.  Said thiazolidines have diuretic activity.      The invention also relates to a process for the manufacture of said compounds.
Patent CA-1068748-A (CA)
Inventor: LOEWE HENRI
IPC: E04G19/00
Filed: 1976-09-09
Granted: 1979-12-25
Abstract: ABSTRACT OF THE DISCLOSURE         A mobile support for scaffolding which is of simple construction, is readily installed and removed, and which need not include any loose parts, comprises a holder, means for loc-king the holder releasably on a scaffolding upright, a spindle housing fixedly mounted on the holder, a vertical spindle placed in the spindle housing and a fork supporting a wheel and hinged-ly mounted on the spindle.
Patent CA-1073009-A (CA)
Inventor: DRURY FREDERICK H
IPC: B01F15/02
Filed: 1977-03-18
Granted: 1980-03-04
Abstract: ABSTRACT OF THE DISCLOSURE             The invention provides a dental amalgamator which prevents mercury vapor, given off during amalgamation, from polluting the air in the neighbourhood of the amalgamator.  The amalgamator comprises a casing carrying a capsule holder and a drive means for the holder, a lid movable to a closed position in which it cooperates with the casing to form an enclosure for a capsule held by the holder, the enclosure having air inlets allowing air to flow from the atmosphere into the enclosure.  A vacuum pump is arranged to communicate with the enclosure via a mercury filter medium, so that during amalgama-tion air is drawn into the enclosure, over the capsule, and then through the mercury filter where mercury vapors are removed.
Patent CA-1070237-A (CA)
Inventor: JOHNSON JOSEPH L
IPC: E21B34/10
Filed: 1977-04-21
Granted: 1980-01-22
Abstract: ABSTRACT OF THE DISCLOSURE       In accordance with an illustrative embodiment of the present invention, a subsurface safety valve assembly includes a dome precharged with a set reference pressure that tends to close the valve, and means responsive to both ambient pressure and to the pressure of a control fluid for holding the valve open under normal conditions, a decrease in either control fluid pressure or tubing pressure, or both, enabling the dome pressure to cause the valve to automatically close and shut-in the well.  The valve does not employ a coil spring to cause closure, which permits installation at great depths in a well, and a narrow spread between valve opening and closing pressures.
Patent CA-1087276-A (CA)
Inventor: KAMEYAMA YASUYOSHI
IPC: G08B17/06
Filed: 1977-04-26
Granted: 1980-10-07
Abstract: ABSTRACT OF THE DISCLOSURE           This invention relates to fire sensing devices to be used for detecting any abnormal heat generation or fire occurrence and to actuate a fire alarm system.  The fire sensing device comprises a base body, a heat-responsive switch mounted to the base body, and a heat receiving plate member thermally connected to the switch and expanding around the switch, the heat receiving plate member being provided therein with at least two groups of slits defined by fins formed by being raised from the plate member, the fins in each of the groups being raised respectively in the same direction, and the raised direction of the fins in each of the groups being different from that in the other groups.
Patent CA-1089233-A (CA)
Inventor: ANDERSON JOHN E
IPC: F27B15/00
Filed: 1977-05-20
Granted: 1980-11-11
Abstract: IMPROVED PYROLYSIS PROCESS FOR CONVERTING REFUSE TO FUEL GAS                           ABSTRACT         This invention relates to improving the known process for disposing of refuse while simultaneously pro-ducing a useful gaseous product and an inert solid residue in a shaft furnace in which refuse is fed into the top por-tion of said furnace, an oxygen containing gas is fed into the base, and in which the organic portion of the refuse is pyrolized to char, oils and gas containing a high concentra-tion of CO and H2, and the inorganic portion of the refuse is fluidized and tapped from the base of the furnace.      The improvement in the above-described process comprises removing a portion of the char from the furnace while retaining a sufficient amount of combustible materials in the furnace to satisfy the energy requirements of the process.  The improvement permits a reduction in the oxygen requirements of the process and has a beneficial effect on the specific heating value of the fuel gas produced.
Patent CA-1083218-A (CA)
Title: Waveform analyzer for rotating electrical circuitry
Inventor: VOIGT JAMES R
IPC: H02K11/00
Filed: 1977-06-09
Granted: 1980-08-05
Abstract: WAVEFORM ANALYZER FOR ROTATING     ELECTRICAL CIRCUITRY        Abstract of the Disclosure Two monitor circuits, each having a light emit-ting diode, are connected to the inputs and outputs of an SCR current control circuit on a brushless a-c generator. The current control circuit and the attached monitoring circuits are mounted on a rotating shaft and information regarding the operation of the rotating current control circuit is obtained by observing the light patterns generated by the light emitting diodes.
Patent CA-1087756-A (CA)
Inventor: HOWER PHILIP L
IPC: H01L29/40
Filed: 1977-06-28
Granted: 1980-10-14
Abstract: ABSTRACT OF THE DISCLOSURE       A thyristor structure is described which is capable of achieving the maximum theoretical breakdown voltage of both forward and reverse blocking junctions.  An annular electrical field spreading member bridges the blocking junctions of the thyristor, both of which emerge on one major semiconductor surface of the device.  The resistive layer spreads the electric field to a degree sufficient to raise the surface breakdown voltage up to the bulk breakdown capability.
Patent CA-1085687-A (CA)
Inventor: BOEHN HUGO
IPC: C25B11/055
Filed: 1977-07-11
Granted: 1980-09-16
Abstract: ABSTRACT OF THE DISCLOSURE: Manufacture of electrodes con-sisting or bases or valve metals with electrochemically active coat-ings applied thereto. The electrodes are pretreated before the said coatings are applied, the pre-treatment comprising treating the base with hydrogen.
Patent CA-1100699-A (CA)
Inventor: ILLY HUGO
IPC: C07D257/04
Filed: 1977-07-14
Granted: 1981-05-05
Abstract: Case 3- 10604/1-3 CANADA     BIS-TETRAZOLES AS CHEMICAL BLOWING AGENTS     Abstract of the Disclosure Bis-tetrazoles wherein the two tetrazol rings are bridged by a direct bond or a divalent organic residue in 5,5'-position or in 1,1'-position have been found to be suitable as blowing agents for thermoplastic resins. They decompose at tempera-tures of about 230 to 300°C and therefore can be used for the expansion of resins which are processed at such temperatures, for instance polypropylene, polycarbonates, polyphenylene-oxides or polyamides.  Preferred are bis-tetrazoles bridges by aliphatic or araliphatic residues. The expansion can be carried out in an extruder or an injection moulding device.
Patent CA-1082176-A (CA)
Inventor: JEFFERIES PATRICK J
IPC: C09B67/00
Filed: 1977-08-03
Granted: 1980-07-22
Abstract: ABSTRACT OF THE DISCLOSURE           Storage-stable aqueous compositions containing dissolv-ed water-soluble methanesulfonic acid addition salts or mixed methanesulfonic acid-hydrochloric acid addition salts of poly(amino-methylated) metal phthalocyanines, which are prepared by the inter-action of methanesulfonic acid and poly(aminomethylated) metal phthalocyanines, are useful for direct dyeing, particularly the dyeing of cellulose.  Said acid addition salts and the preparation of said salts and storage-stable compositions are also the subject of the invention.
Patent CA-1108255-A (CA)
Inventor: RABINOWITZ MARIO
IPC: H02G1/14
Filed: 1977-08-17
Granted: 1981-09-01
Abstract: Abstract of the Disclosure An underground cable includes a conductor, a coaxial ground, and a dielectric material therebetween.     An external jacket and a layer of highly water-absorbent material disposed between the jacket and ground is present to protect the dielectric layer from moisture.  A preferred absorbent material comprises a water-swellable and insoluble gel-forming cross-linked polymer.
Patent CA-1074787-A (CA)
Inventor: BOTROS RAOUF
IPC: D06P3/79
Filed: 1977-09-09
Granted: 1980-04-01
Abstract: ABSTRACT OF THE DISCLOSURE        Disazo dyes containing a benzthiazolyl group and corres-ponding to the general formula:                     in which A and G are optionally substituted benzene or naphthalene nuclei, D is not optionally substituted salicylaldehyde or o-hydroxy-naphthaldehyde nucleus and E is an optionally substi-tuted o-aminothiophenol nucleus are provided.  Metal-modified polypropylene dyed with the disazo dye has excellent fastness properties.
Patent CA-1109558-A (CA)
Inventor: COMMANDER ROBERT D
IPC: G05D3/12
Filed: 1977-11-14
Granted: 1981-09-22
Abstract: ABSTRACT             Data storage apparatus of the type employing a stack of rotatable storage disks accessible by a plurality of data heads ganged for movement over the data surfaces.  The position of a data head during track following operations over a selected data surface being controlled by a hybrid servo signal consisting of low frequency components of position information signals derived from servo sectors around the data track being followed added to which are high frequency components of continuous position information signals derived either from a dedicated servo surface forming part of the stack or from an external position transducer.  The continuous position information being provided by a servo trans-ducer, which is also ganged to the data heads, in the form of two cyclic quadrature signals (90° out of phase with each other) each having portions which are linear and co-extensive over the whole range of head displacement.  The apparatus including servo control circuits for detecting during data track following position (caused for example by temperature variations or mechanical vibrations) beyond the linear region of the correspond-ing one of the two quadrature signals supplying the high frequency components and, upon such detection, switching to an adjacent linear portion of the other signal, or the inverse of the other signal, to either of which has been added an appropriate d.c. offset so that the linear portion of this other signal becomes an effective extension of the linear portion of the continuous servo signal corresponding to the data track being followed.  By this means the a.c. gain of the servo circuits is maintained constant thereby improving the servo loop performance.
Patent CA-1105329-A (CA)
Inventor: OSHIMA MASANAO
IPC: B63B35/08
Filed: 1977-11-28
Granted: 1981-07-21
Abstract: ABSTRACT OF THE DISCLOSURE     An ice-breaking apparatus for use in ships and barges operating in icy waters, including nozzles for jetting high pressure fluid, is disclosed.  By impinging force or cavitation caused by the high pressure fluid jetted from the nozzles, grooves or cracks are formed in an ice floe, and then, the ice floe is broken at these grooves or cracks by the hull.  This ice-breaking apparatus facilitates breakage of ice floes or the like, and when this ice-breaking apparatus is attached, ships or barges operating in icy waters can be built without increasing their dimensions or propulsion powers, particularly useful for navigation in icy waters.
Patent CA-1092226-A (CA)
Inventor: WILLIAMS GREGORY J
IPC: H01J40/00
Filed: 1977-12-29
Granted: 1980-12-23
Abstract: IMPROVED SOLAR ENERGY CONVERTER            ABSTRACT OF THE DISCLOSURE        An improved solar energy converter comprising a plurality of electrically conductive, photoemitting electrodes geometrically arrayed so that light will strike only one surface of each to produce electronic emission.  The electrodes are in a spaced, generally parallel relationship so that electrons  emitted by the illuminated surface of one electrode will travel to, and be collected by, a non-illuminated surface of a next adjacent electrode.  A vacuum surrounds the electrodes so that only space conduction occurs.  Each electrode has one surface which acts as a photoemitting cathode and one surface which acts as an electronic collector, or anode, and thus each pair of adjacent electrode surfaces is analagous to a voltage cell, the plurality of electrodes forming a solar energy battery.
Patent CA-1107864-A (CA)
Inventor: WOODS JOHN M
IPC: G05F1/577
Filed: 1978-01-20
Granted: 1981-08-25
Abstract: ABSTRACT OF THE DISCLOSURE           A data processing system includes as part of its power circuits, a number of converter circuits, each coupled to a different one of the power supply units which are to provide different voltages for distribution and use throughout the system.  Each of the power supply circuits furnish a 24 volt dc power confidence signal to a central ac power input entry panel which applies the power confidence signals to the con-verter circuits.  Each converter circuit includes an opti-cally coupled isolator circuit which converts the 24 volt dc signal to a noise free low voltage logic level suitable for utilization by the low level high speed logic circuits included within the system.  The output noise free low voltages provided by the converter circuits are in turn applied to a corresponding number of confidence input lines of a system interface unit which includes a plurality of ports, each port connected to a different module within the data processing system.  The states of the low voltage logi-cal level signals are stored in a status register.  When the operating system determines that a unit is inoperative due to a power supply unit failure, it can logically dis-connect the port having a module having the failure. Additionally, one of the converter circuits provides a second output signal which is used to enable the clock cir-cuits during system power up only after the system has been placed in a known state.
Patent CA-1106677-A (CA)
Inventor: MOORE CARL O
IPC: A23G3/52
Filed: 1978-01-24
Granted: 1981-08-11
Abstract: ABSTRACT OF THE INVENTION         Water-soluble protein hydrolyzates and high-amylose starches provide an improved whipping system for aerated confections such as nougats, grained marshmallow, etc.  The total recipe whipping agent and sweetening agent requirements may be sterilized and aerated to a specific gravity of 0.75 or less.  The high-amylose starches and protein hydrolyzates are film-formers and provide a supportive matrix for the aerated confections.  The aerated confectionrecipe permits the use of a broad range of sweetening agents without necessarily relying upon crystallized sugars for textural properties.  High, moisture-containing, aerated confections with improved stability against moisture-loss may be obtained by substituting crystallizable sugars (e.g. sucrose) with sweetening agents which have a higher degree Or humectancy.