baber/WOPTO huggingface dataset:
Patent CA-1047184-A (CA)
Inventor: ZIMMERMAN JERREL L
IPC: D21H19/54
Filed: 1974-11-07
Granted: 1979-01-23
Abstract: ABSTRACT OF THE DISCLOSURE            An alkali-stable, modified starch for use in paper coating binders as a replacement for protein (casein and delta protein) over a broad pH ranging from 6 to about 9.5, when ammonia is used to adjust pH.  A cationic starch derivative having quaternary ammonium groups is reacted with maleic anhydride to yield an amphoteric starch having a net anionic charge.  This product insolubilizes with conventional starch insolubilizers, such as melamine formaldehyde resin, at pH of 6 and higher to produce wet-rub resistant coatings when formulated with clay and coated on paper and paperboard substrates.  Crosslinking is effected rapidly to produce complete insolubilization, especially when used with a minimum of 50% latex as a binder.  Maleic anhydride provides anionic properties to the cationic starch molecule to yield an amphoteric starch with a net anionic charge. Maleic anhydride is used because the starch so produced is capable of self-crosslinking at high pHs to produce insolubilized coatings resistant to water.  Crosslinking is effected by drying the paste films without the use of a catalyst.  When alkaline conditions are required such as when using alkali-swellable latex, pH adjustments are made with ammonia, which flashes off during insolubilization.  The maleated starches self-crosslink and insolubilize at high pH levels, and become immobile before water is completely removed.  The rapid insolubilization minimizes binder migration.
Patent CA-1052167-A (CA)
Inventor: FAUL WILLIAM H
IPC: G03C5/50
Filed: 1975-06-09
Granted: 1979-04-10
Abstract: METHOD OF PRODUCING REVERSAL           COLOR IMAGES           Abstract of the Invention Reversal color images are produced in photographic elements which employ a leuco dye comprising the reaction pro-duct of a color forming coupler and a N,N-dialkyl-p-phenylene-diamine stabilized against aerial oxidation by an electronegative group attached to the benzene ring.  A preferred process involves the use of black-and-white developers and comprises (1) treating the exposed photographic element with a non-cross-oxidizing balck-and-white developing composition, (2) fogging the residual silver halide, (3) treating the element with a cross-oxidizing black-and-white developing composition, and (4) removing silver and silver halide by a bleach-fix treatment.
Patent CA-1052798-A (CA)
Inventor: GYURIK ROBERT J
IPC: A23K1/16
Filed: 1975-06-11
Granted: 1979-04-17
Abstract: ABSTRACT OF THE DISCLOSURE         Methyl 5-propylthio-2-benzimidazolecarbamate is the active ingredient for methods and compositions affording enhanced activlty against gastrointestirial helminths in commercial or pet animals.  It is also active against lung-worms, cestodes and flukes in animals.
Patent CA-1036445-A (CA)
Inventor: SKINNER ROBERT T J
IPC: F02D1/18
Filed: 1975-07-15
Granted: 1978-08-15
Abstract: ABSTRACT OF DISCLOSURE         A fuel injection pumping apparatus includes an injection pump driven in timed relationship with an assoc-iated engine and a resiliently loaded fluid pressure operable member for controlling the timing of delivery by the injection pump.  Means is provided for generating pressure responsive to the speed of the associated engine and this pressure is applied to the aforesaid member so that the timing of delivery of fuel is variable.  The apparatus also includes a piston movable to adjust the force exerted by the resilient means on the member and valve means is provided for controlling the application of fluid pressure to said piston, the valve means being respon-sive to the speed of operation of the associated engine.
Patent CA-1039534-A (CA)
Inventor: ISAEV AFANASY A
IPC: G01M15/00
Filed: 1975-07-21
Granted: 1978-10-03
Abstract: ABSTRACT OF THE DISCLOSURE       According to the invention a pickup for measuring the maximum pressure in the internal combustion engine cylinder comprises a spring-loaded reversing valve mounted in a housing and being in contact with the first seat made in the housing on the side of the compressed air supply passage. In another operating position the reversing valve contacts the second seat which is an end face of the bead made on the rod of another valve. The meter chamber confined with the operating surface of the reversing valve and the second seat is communicated with the engine cylinder through a passage made in said rod. the pressure to be measured in the engine cylinder corresponds to the counter-pressure of the compressed air. The pickup according to the invention is compact in structure and convenient in operation.
Patent CA-1050052-A (CA)
Inventor: HILBERATH FRIEDRICH
IPC: C07C1/02
Filed: 1975-08-06
Granted: 1979-03-06
Abstract: A B S T R A C T           A method for the transport of heat energy from a locus of production to a locus of consumption by employing the heat energy for the catalytic decomposition of methane, transport of the cooled de-composition gas to the locus of energy consumption, catalytic conversion of the decomposition gas to methane and recycling of the reformed methane to the decomposition plant.  The methane is catalytically decomposed with the addition of steam at elevated temperature and pressure.  The decomposition gas is substantially freed from steam and water.  The dry decomposition gas so obtained is conducted to the locus of heat consumption.  Methane is produced catalytically therefrom, at least part of the carbon oxides contained in it as well as hydrogen without addition of steam, at elevated pressure and a temperature of 400° to 650°C and the heat thereby produced and obtained is used in the required manner.
Patent CA-1064523-A (CA)
Inventor: KERSHAW BERNARD J
IPC: C07C209/48
Filed: 1975-08-26
Granted: 1979-10-16
Abstract: ABSTRACT OF THE DISCLOSURE         An improved process for the manufacture of hexa-methylene diamine by the hydrogenation of adiponitrile in the presence of an iron catalyst is disclosed.  In the improved process the adiponitrile is treated with a solid acidic sorption agent so as to reduce the amount of N-heterocyclic amines in the adiponitrile prior to the hydrogenation of the adiponitrile in the presence of an iron catalyst.  Examples of suitable solid acid sorption agents are weak-acid cation exchange resins in the hydrogen form, strong-acid cation exchange resins especially such resins having a macroreticular structure, molecular sieves, boron phosphate and bentonite.  The process is particularly use-ful in the manufacture of hexamethylene diamine from adipo-nitrile obtained from adipic acid and ammonia.  Hexamethylene diamine free of odoriferous compounds that otherwise may be produced on hydrogenation of adiponitrile with an iron catalyst is obtainable.
Patent CA-1105363-A (CA)
Inventor: DAKUS HAROLD
IPC: A01G23/095
Filed: 1975-10-22
Granted: 1981-07-21
Abstract: ABSTRACT OF A DISCLOSURE           The invention provides a tree delimbing apparatus suit-able for mounting on a vehicle.  A frame bears a plurality of delimbing arms which are pivotally mounted and spring loaded on the frame.  They extend outwardly from the frame so as to engage the branches of felled trees.  The trees are suitably oriented parallel on the ground and then the vehicle bearing the delimbing apparatus passes over the felled trees, the frame moving along the tree trunks and the spring loaded delimbing arms accommodating themselves to varying diameters of tree trunk as the frame passes over the trunks.  The delimbing arms are rigidly supported in the direction of motion and thus strip off the tree branches as the frame moves along the trunks.
Patent CA-1037869-A (CA)
Inventor: ANDRESS OTTO G
IPC: F04D29/10
Filed: 1975-10-31
Granted: 1978-09-05
Abstract: ABSTRACT OF THE DISCLOSURE           In a turbomachine of the type having several sections wherein each section includes a separate hood or casing having a rotor portion therein supported by bearings at each end of the stage or hood, there is provided a stationary annular seal between adjacent hood ends.  The seal com-prises an annular wrapper spaced radially outwardly from the turbomachine rotor and a first annular sealing element extending radially inwardly and terminating at a free end at the annular wrapper outer surface in a sliding inter-ference fit.  The annular wrapper is attached to one adjacent hood end whereas the first sealing element is attached to the other adjacent hood end and the seal construction accommodates differential thermal movement of the turbo-machine stage hoods.
Patent CA-1071630-A (CA)
Inventor: BRAYE EMILE
IPC: C07D333/20
Filed: 1976-02-05
Granted: 1980-02-12
Abstract: PROCESS FOR THE PREPARATION OF THIENO-PYRIDINE DERIVATIVES.     ABSTRACT OF THE DISCLOSURE.             This invention relates to a process for the preparation of thieno-pyridine derivatives having the structural formula :                      (I) in which R1 represents an optionally subsituted alkyl, aryl or aralkyl radical, and R2 and R3 represent each hydrogen or a lower alkyl, aryl or heterocyclic radical, comprising :              (a) reacting a derivative of the formula                      (II) in which R2 and R3 are as defined for formula (I) and X represents hydrogen, or an alkali metal, or a radical Mg-Y in which Y represents halogen, with a halo-sulfonyl derivative having the formula :               Hal-SO2-R4             (III) in which Hal represents halogen and R4 represents an optionally substituted alkyl, aryl or aralkyl group, to give a compound having the formula :                                            (IV) (b) subsequently reacting the latter compound with an amine of the formula :                     R1-NH2               (V) in which R1 is as defined for the formula (I), to give a compound   having the ormula :                                (VI) and (c) subsequently cyclising compound (VI) with formaldehyde to give the derivative of the formula (I).
Patent CA-1083296-A (CA)
Inventor: NAARMANN HERBERT
IPC: C08F22/22
Filed: 1976-02-10
Granted: 1980-08-05
Abstract: ABSTRACT OF THE DISCLOSURE: Polymers which have formamide groups in the side branches and which may in addition contain other reac-tive groups. They car. be used to produce moldings, coatings or ad-hesives.
Patent CA-1070207-A (CA)
Inventor: KIEJZIK PAUL A
IPC: B63B43/26
Filed: 1976-02-25
Granted: 1980-01-22
Abstract: ABSTRACT OF THE DISCLOSURE In a preferred embodiment, there is provided a micro-film jacket support supportable of a flat microfilm jacket in a horizontal position in an anchored state with a leading edge of the jacket extending beyond the support when mounted thereon, and with a microfilm insertion opening into micro-film jacket reservoir space being positioned at the edge of the support face-up when mounted on the support, and as a part of the combination additionally there being an upper edge pressure-flexing mechanism for flexing downwardly the leading edge extending beyond the support adjacent the inser-tion opening, and a feeding mechanism for aligning a longitudi-nal elongated axis of the microfilm with a longitudinal elon-gated axis of the microfilm jacket reservoir space and with the insertion opening and for feeding advancingly inter-mittently microfilm into the insertion opening and for inter-mittently severing microfilm, and additionally for mounting in association with microfilm immediately adjacent the inser-tion opening a microfilm projection mechanism for viewing a microfilm frame about to be inserted.
Patent CA-1048242-A (CA)
Inventor: SCOVILLE RAY R
IPC: H02G1/12
Filed: 1976-07-14
Granted: 1979-02-13
Abstract: INSULATION SLITTING AND WIRE WRAPPING TOOL                 Abstract of the Disclosure A  rotatable wire wrap tool of the type having an apertured tip end operative to engage a terminal to wrap the terminal with wire as the tool is rotated, is provided with a bobbin carrying a supply of insulated conductor wire which is fed from the bobbin through the tool to its tip end.  The interior of the tool is pro-vided with a slitting element positioned to engage the surface of the wire as it is fed toward its wrapping position, to cut an elongated continuous slot through any insulation on the wire while leaving the remainder of the insulation intact, and the tool is further provided with an inclined face adjacent its tip end for guiding and twisting the slotted wire as the tool is rotated to bring the portion of the conductor wire which is exposed through the slot in the insulation into electrical contact with the terminal being wrapped.
Patent CA-1061219-A (CA)
Inventor: TREMBLAY ROLAND
IPC: A47C20/00
Filed: 1976-08-20
Granted: 1979-08-28
Abstract: ABSTRACT OF THE DISCLOSURE A support for the human head primarily intended for use to maintain and preserve a coiffure.  A person using the support lies face down and the face and head is supported by flexible sheet material which is supported by a peripheral frame which preferably is of general oval configuration and which is supported in elevated position by downwardly depending support legs.  In use the coiffure is supported in a position to avoid disturbance during sleep.  In a preferred embodiment the support legs are adjustable as to height to enable the device to be comfortably used by people of varying size and weight.
Patent CA-1078263-A (CA)
Title: Method and apparatus for processing heat-softened glass
Inventor: VEAZIE FOLSOM M
IPC: C03B37/02
Filed: 1976-09-03
Granted: 1980-05-27
Abstract: ABSTRACT OF THE DISCLOSURE           A method of controlling heat-softened glass in a fiber forming process includes flowing streams of the glass from orifices in a surface, feeding combustible carbonaceous material to a region in the vicinity of the surface and burning the carbonaceous material in the region under conditions providing a luminous flame yielding particles of carbon, which are deposited on the surface to counteract wetting of the surface by the glass.
Patent CA-1040381-A (CA)
Inventor: VALLEE LOUIS L
IPC: E04D3/366
Filed: 1976-10-19
Granted: 1978-10-17
Abstract: ABSTRACT OF THE DISCLOSURE         A roofing system of the batten type using sheet metal components only.         The battens are formed by folding the side edge portions of adjacent pan sections to form securing channels and upstanding side walls.  The side walls are folded inwardly away from the se-curing channels and then downwardly to form downwardly projecting lips spaced inwardly and intermediate of the height of the side walls and a closure cap is slidable along the top edges of the side walls and in engagement with the downwardly projecting lips of adjacent pan sections to bridge and seal the gap formed between the adjacent side walls above the abutting securing channels, the securing chan-nels being held down on the underlying roof structure by fastening screws.
Patent CA-1071993-A (CA)
Inventor: LOWE FREDERICK G
IPC: A47C7/00
Filed: 1976-11-02
Granted: 1980-02-19
Abstract: ABSTRACT OF THE DISCLOSURE     The gas spring suspension comprises a gas-tight container capable of longitudinal expansion and contraction and on which the seat is supported, a valve system for connecting the container selectively to a compressed gas source or to exhaust to raise or lower the vehicle seat, a telescopically slidable coupling connected at one end to one end of the gas spring and including a detent which locks the slidable parts of the coupling together at a selected relative position corresponding to a selected vehicle seat height and a mechanical spring coupling connected between the other end of the slidable coupling and the other end of the gas spring, the spring coupling being expandible and contractable between end stops which thereby limit the resilient expansion and contraction of the gas spring, at any selected seat height, means for releasing the detent prior to operation of the valve system, and means for automatically terminating the inlet of compressed gas into the gas spring in response to the slidable coupling becoming fully extended.
Patent CA-1061489-A (CA)
Inventor: JONES RALPH A
IPC: H04M3/40
Filed: 1976-11-15
Granted: 1979-08-28
Abstract: AN ABSTRACT OF THE DISCLOSURE      A telephone conference amplifier consists of a plurality of identical channels, one per subscriber participating in a conference, connected to a common point.  Each channel includes a transformer having a primary winding and two secondary windings.  The primary winding is connected to the corres-ponding subscriber's line to send and receive speech signals to and from that subscriber.  The first secondary winding is connected to an active rectifier and smoothing circuit which produces when the subscriber is talking an envelope signal corresponding to the speech signal being received from the subscriber.  This envelope signal is added to the speech sig-nal to produce a unidirectional signal which is applied to the common point via an ideal diode circuit.  Signals on the common point are picked off by a second ideal diode in each channel, and only if the signals have not originated from that channel are they transmitted to the subscriber via the transformer.  The signals picked off from the common point which have not originated in the particular channel are also used to establish a threshold level for the active rectifier so as to reduce the level of the envelope signal and hence suppress incidental sounds from the subscriber while another subscriber is talking.  A transistor is used in the threshold establishing circuit and the resultant temperature dependence of the threshold level is compensated by a temperature depend-ent resistor.  Each channel also includes an automatic level control circuit which compensates for the wide range of signal levels incoming from subscriber's lines.
Patent CA-1073318-A (CA)
Inventor: GORDON EDMUND A
IPC: F17C13/12
Filed: 1976-11-17
Granted: 1980-03-11
Abstract: SAFETY VENT VALVE                 ABSTRACT OF THE DISCLOSURE    A safety valve for pressure-venting sealed, fluid-holding drums, or other containers, to prevent explosions, and providing for admission of ambient atmosphere to the container, to equalize internal and external pressures and thereby permit fluid to be with-drawn from the container.  The valve shell comprises a capped tube, which has only a single thread formed thereon, and a plurality of shelf-like abutments which extend peripherally of interior wall portions of the tube and are shaped and disposed to provide support for interior, nested, valve parts, including a pair of flame-retardant screens, a pair of oppositely displaceable valving devices, valve seat structure, and spring means to establish the loading of each of said devices.
Patent CA-1087335-A (CA)
Inventor: HELLE KEES
IPC: C25D15/02
Filed: 1977-04-01
Granted: 1980-10-07
Abstract: ABSTRACT OF THE DISCLOSURE        The present invention provides a process for applying to an object a coating containing a resin which is other than a polyfluorocarbon compound which comprises co-depositing from an electroplating bath, on an object serving as a cathode, a metal and resin particles having an average particle size of less than about 10 µm in a concentration of about 3 to 250 g per litre of bath liquid in the presence of both a cationic and a nonionic surface active compound which are other than the fluorocarbon type, in a molar ratio between 100:1 and 2:1 and in an amount which is at least 4 x 10-3 mmoles per m2 of the surface area of the particles.  In one embodiment after the coating has dried it is subjected to at least one treatment selected from curing, sintering and melting.  In another embodiment onto the resulting coating, serving as a cathode, there is subsequently deposited from an electroplating bath of a different composition a metal.  The present invention provides a process by which the object to be coated can both be given cathodic protection and be provided with the desired coating in a single treatment.  The process according to the invention provides coatings of extraordinarily high quality.
Patent CA-1129042-A (CA)
Inventor: RICHARDS ARTHUR W
IPC: B07C5/36
Filed: 1977-04-13
Granted: 1982-08-03
Abstract: ABSTRACT            In the photometric sorting of objects each object is examined in each of a predetermined number of zones for the presence or absence of one or more predetermined surface characteristics.  The invention provides that a characteristic determined in one zone be attributed to at least one other zone into which the object extends.
Patent CA-1063650-A (CA)
Inventor: GEPHART ROBERT L
IPC: B60T13/569
Filed: 1977-04-18
Granted: 1979-10-02
Abstract: POWER BRAKE BOOSTER SYSTEM     Abstract of the Disclosure:         A single-piece piston in a dual diaphragm brake booster provides mounting for both diaphragms and support and guide sec-tions for the primary and secondary piston bearings while elimi-nating the threaded assembly of prior two-piece pistons, or other interlocking arrangements, to make a piston assembly out of a plurality of pieces.  The secondary support plate and the second-ary diaphragm slip over one end of the piston without requiring piston parts to be interlocked afterward.  The diaphragm seals on the outside of the piston.  The primary support plate and primary diaphragm are similarly installed.  The booster chamber divider and bearing are installed between the two support plate and diaphragm sub-assemblies.  A reaction chamber containing reaction means is positioned radially inwardly of one guide and support section of the piston located between the two diaphragm and mount-ing plate means.  A control valve chamber is similarly positioned radially inwardly of the other support and guide section of the piston.  The chambers are separated by an apertured wall in which the air valve is reciprocably mounted, the air valve also acting to transmit force mechanically from the input push rod to the reaction means and thereafter to the output member.  In one arrangement the reaction means is a reaction disc of a well-known type, and in the other arrangement the reaction means is a reaction lever system, also of a well-known type.
Patent CA-1054263-A (CA)
Inventor: BRUECKNER KEITH A
IPC: A61B6/03
Filed: 1977-05-16
Granted: 1979-05-08
Abstract: ABSTRACT OF THE DISCLOSURE Analog method and apparatus for producing an axial tomographic image of an object, typically the human body, using a detector for receiving radiation along a plurality of sets of paths, with the sets of paths overlapping each other, and providing a plurality of sets of detector output signals. Prior art devices exist for producing the detector output signals, which signals are then manipulated in a digital computer to produce the desired image.  In one embodiment of the present invention, the detector output signals are summed in a storage tube and the stored signals are read in an inversely proportional relation, providing another signal for storage in another storage tube which is then read with a Laplacian re-lation to give a video signal for display and/or recording. Optical and electrostatic storage systems are also disclosed.