baber/WOPTO huggingface dataset:
Patent CA-1052321-A (CA)
Inventor: GREEN GEORGE E
IPC: G03F7/038
Filed: 1975-07-03
Granted: 1979-04-10
Abstract: POLYMERISATION OF AMIDES BY ACTINIC RADIATION            Abstract of the Disclosure Novel amides, preferably having a molecular weight in the range 1000 to 10,000, are prepared by acylating, partially or fully, amino groups in a poly(ethylene imine) or poly(pro-pylene imine) whereby amino-hydrogen atoms are replaced by groups R3CH=CR2CO-, where R3 denotes an aliphatic, cycloali-phatic, araliphatic, or heterocyclic group containing ethylenic unsaturation in conjugation with the indicated double bond and R2 denotes a hydrogen, chlorine, or bromine atom, a cyano group or an alkyl group. Particularly preferred are such amides where R3CH=CR2CO- denotes a sorbyl group the amides containing addi-tional intramolecular linkages introduced by a difunctional reagent capable of reacting with aliphatic amino groups, such as a diepoxide or a di-isocyanate.         The amides may be polymerised by means of actinic radiation and the polymerisation products are useful in the preparation of printing plates and printed circuits.
Patent CA-1085447-A (CA)
Inventor: DONNELLY THOMAS L
IPC: G03G15/20
Filed: 1975-09-15
Granted: 1980-09-09
Abstract: HIGH EFFICIENCY NON-CAVITY RADIANT       METHOD AND APPARATUS     ABSTRACT OF THE DISCLOSURE           Flash fusing method and apparatus for fusing toner images onto flexible support material in which the support material is transported in a cylindrical path encircling the flash fusing lamp.  The support material is a web or alternatively is in the form of copy sheets tacked onto a transport belt either by electrostatic tacking or by a vacuum transport and then advanced in a circular path around the flash with the toner images facing the flash lamp and receiving a uniform radiation therefrom.
Patent CA-1051572-A (CA)
Inventor: DHEIN ROLF
IPC: C08L67/08
Filed: 1975-09-26
Granted: 1979-03-27
Abstract: Process for the production of water-dilutable binders based on air-drying short-oil alkyd resins Abstract of the Disclosure A process for the production of water-dilutable binders based on air-drying short-oil alkyd resins acidified by semiester formation with dicarboxylic acid anhydrides which alkyd resins have acid numbers of from 30 to 70 and hydroxyl numbers of from 40 to 120 and a content of natural unsaturated fatty acids in an amount of from 15 to 50 % by weight and of a co-condensed natural-resin-modified phenol resol resin in an amount of from 2 to 10 % by weight, characterised in that 1) the molar composition of the alkyd resin before semiester formation corresponds to a polyalcohol/polycarboxylic acid (anhydride)/monocarboxylic acid ratio of 1 : (0.5-1) : (0.3-1), and 2) polyalcohols, polycarboxylic acids resp. their anhydrides, monocarboxylic acids and phenolic resins are co-condensed in a single process stage, followed only by semiester formation with dicarobxylic acid anhydrides.
Patent CA-1052889-A (CA)
Inventor: ASANO MASAHARU
IPC: F02D35/00
Filed: 1975-10-20
Granted: 1979-04-17
Abstract: Abstract of the Disclosure The oxygen component of exhaust gases from internal combustion engine is sensed and compared with a reference value which represents the stoichiometric air-fuel ratio of the engine to provide an error signal at one of two discrete values depending on whether the amount of oxygen component is above or below stoichiometry.  The error signal is connected to inte-grating and/or proportional controllers.  Operating parameters of the engine are sensed to control the integrating and/or proportional gains of the controllers upon the sensed parameters reaching a predetermined value.  The output from the controllers is used to control the air-fuel ratio of the engine.
Patent CA-1040396-A (CA)
Inventor: KOMAKI SAIJI
IPC: B28B1/00
Filed: 1975-12-18
Granted: 1978-10-17
Abstract: ABSTRACT OF THE DISCLOSURE                Apparatus is disclosed for use in the continuous manu-facture of concrete panels having a color decoration on the outer surface thereof.  A hopper is provided for white mortar material and a chute down which white mortar is allowed to flow from the hopper.  Containers and mixing devices are provided over-the chute for addition of colored materials and partial mixing with the white mortar.  At the bottom end of the chute the mortar passes over a guide plate adopted to invert the mortar layer onto the bottom surface of a molding box passing thereunder.
Patent CA-1057308-A (CA)
Inventor: KNOEFEL HARTMUT
IPC: C07C209/78
Filed: 1975-12-23
Granted: 1979-06-26
Abstract: PROCESS FOR THE PREPARATION OF AROMATIC POLYAMINES      Abstract of the Disclosure The instant invention is directed to a novel process for the production of aromatic polyamines.  The process of the invention comprises (a)  condensing an aromatic amine with formaldehyde in the presence of a hydrophobic solvent and in the absence of an acid catalyst to produce a pre-condensate mixture containing the corresponding N,N'-disubstituted aminals, (b)  removing substantially all the water from said pre-condensate mixture to produce a first organic phase, (c)  extracting said first organic phase with an aqueous solution containing an acid catalyst thereby producing a second organic phase and an aqueous pre-condensate phase which con-tains said aminals, (d)  subjecting said aqueous pre-condensate phase to a rearrangement reaction thereby producing an aqueous condensation mixture containing said aromatic polyamines, (e)  extracting said aqueous condensation mixture with a hydrophobic solvent to provide a solvent phase and an aqueous phase which comprises an aqueous solution containing the acid catalyst as an amine salt of said aromatic amine, and said aromatic polyamines, (f)  recovering aromatic polyamines from said solvent phase, and (g)  returning said aqueous phase to step (c). In the presently preferred embodiment, the organic phase of step (c) is returned to step (a).
Patent CA-1059754-A (CA)
Inventor: BACHRICH JAKOB L
IPC: F26B3/04
Filed: 1976-04-21
Granted: 1979-08-07
Abstract: DRYING KILN FOR LUMBER                 ABSTRACT OF THE DISCLOSURE           A drying kiln for lumber. The kiln comprises a drying chamber having two spaced drying sections each to receive a stack of lumber.  There is a second chamber above the drying chamber and drivable, reversible, circulating means in the second chamber.  The kiln also has heating means for air circulated by the circulating means.  A first passageway permits the circulating means to force heated air across the drying sections, across the space between them and back to the circulating means.  A second passageway extends downwardly into the space between the dryer section. There is a first and a second closable inlet for the second passageway.  Each inlet is positioned on a side of the circulating means to receive a proportion of air forced towards it by the circulating means. A plurality of outlets to said space are in said second passageway.  Means control the first and second inlets whereby if one is open the other is closed.
Patent CA-1046461-A (CA)
Inventor: MENZIES JAMES D
IPC: G05D9/04
Filed: 1976-05-18
Granted: 1979-01-16
Abstract: ABSTRACT OF DISCLOSURE           A device, for example in a coal washbox, for controlling conditions in the washbox wherein the washing liquid is caused to oscillate vertically therein, the device comprising a float disposed in the liquid thus to oscillate therewith at a mean level determined by the conditions prevailing in the washbox, actuating means responsive to the position of the float and adapted to actuate further means for controlling said conditions, and a reduction gear assembly drivingly connecting the float to said actuating means, the arrangment being such that when the mean level of oscillation of the float rises, the actuating means is simultaneously raised by the float, and when said mean level falls the actuating means is simultaneously lowered by  the reduction gear assembly at a predeter-mined reduced rate with respect to the rate of fall of said level.
Patent CA-1042039-A (CA)
Inventor: NISHIMURA HIROMI
IPC: H01H50/56
Filed: 1976-06-11
Granted: 1978-11-07
Abstract: REED RELAY          Abstract of the Disclosure A reed type relay comprises a frame forming a cavity and having coil terminals.  A bobbin assembly containing a coil is mounted in the cavity, this assembly having a flange at each end.  A pair of magnetic poles energised by a permanent magnet as well as by the coil is pressed into one of these flanges and the base end of a reed is pressed into the other.          This reed is elongated and extends along the bobbin assembly with its tip located between the poles so as to be movable into engagement with each of them.
Patent CA-1056367-A (CA)
Inventor: BARBER ANTONY D
IPC: E21B7/02
Filed: 1976-07-02
Granted: 1979-06-12
Abstract: ABSTRACT OF THE DISCLOSURE      A supporting mechanism for a rotary rock drill comprising a jib pivoted at its inner end to a support structure, for example a vehicle, and a drill carriage mounted for pivotal movement about an axis parallel to the jib pivotal axis on the outer end of the jib.  The supporting mechanism includes a hydraulic levelling system for the drill carriage comprising a pair of hydraulically-interconnected linearly expansible and contractible hydraulic jacks.  The first jack is pivotally connected between the jib and its support structure to sense angular movement of the jib relative to the support structure about the pivotal axis of the jib.  The second jack is pivotally connected between the jib and the drill carriage to control the orientation of the latter.  The levelling system is so constructed and arranged that the triangle whose corners are respectively constituted by the pivotal connection of the first jack to the support structure, the pivotal connection of the jib to the support structure, and the pivotal connection of the first jack to the jib, and the triangle whose corners are respectively constituted by the pivotal connection of the second jack to the drill carriage, the pivotal connection of the jib to the drill carriage and the pivotal connection of the second jack to the jib, are similar triangles, and that on pivotal movement of the jib relative to the support structure the ratio of the corresponding changes in operative length of the hydraulic jacks equals the ratio of similarity of the said triangles whereby the drill carriage is maintained in parallelism throughout said pivotal movement of the jib.
Patent CA-1084697-A (CA)
Inventor: HURST JOHN L
IPC: G03G15/08
Filed: 1976-10-26
Granted: 1980-09-02
Abstract: TONER APPLICATOR FOR ELECTROSTATIC COPIER                 ABSTRACT OF THE DISCLOSURE         An applicator for depositing toner particles-onto an electrostatically-charged latent image formed on a photo-conductive insulating layer to render visible and develop this image.  The applicator includes a trough containing a supply. of toner and provided with a flexible blade of dielectric material which engages the surface of a rotating carrier roll to form a tight nip.  As the roll turns, toner particles at the bottom of the trough are advanced toward the blade and forced through the nip, the blade being deflected to admit a thin layer of particles which adhere to the roller surface.          In the course of such passage, the particles are frictionally rubbed by the edge of the blade and thereby caused to assume a triboelectric charge.  A paper web or other medium carrying an electrostatically-charged latent image of the intelligence to be copied is transported so as to engage the toner layer carried on the surface of the roll, whereby charged toner particles are transferred to the medium and deposited on the latent image to produce a developed image for subsequent fixing.
Patent CA-1065912-A (CA)
Inventor: DIXON BERNARD
IPC: E06B5/16
Filed: 1977-04-05
Granted: 1979-11-06
Abstract: A B S T R A C T     A fire-resistant seal for application to a structure e.g. a door jamb, comprises a holder of substantially tubular form for securing to the structure, and a fire-barrier material, which swells under fire conditions, retained in the holder interior.   To minimise dis-lodgment of the material by accident or tampering the holder has a series of small external openings distributed therealong which communicate with its interior.   The total flow area of the openings at the outer surface of the holder is less than the total imperforate area of the outer surface.   The holder may be a hollow strip, and the openings confined to margins which extend along one face of the strip adjacent to opposite edges of the face, or the openings may be formed on opposite faces of the strip.   The openings may be circular  and/or rectangular at the outer surface of the holder and the distance between the centres of any two of the circular openings which are adjacent may be in the range of X4 to X8 half the sum of the diameters of the adjacent openings.   The circular openings may be up to 3 mm. diameter and the rectangular openings 2 - 4 mm. wide and up to 10 mm. long.          One or more internal baffles may be provided adjacent to the openings to protect the contents of the holder from dislodgment.
Patent CA-1038320-A (CA)
Inventor: BENDER LLOYD F
IPC: A01J9/08
Filed: 1977-05-19
Granted: 1978-09-12
Abstract: MILKING APPARATUS AND METHOD FOR OPERATING SAME     ABSTRACT         Dairy cow milking apparatus comprises a vacuum system including a main vacuum line installed along a plurality of milking stalls and a plurality of spaced-apart vacuum ports along the main vacuum line. Manually operable shut-off valves are provided for selectively and indepen-dently opening and closing each vacuum port. The apparatus also comprises a mobile milking unit selectively movable from one position to another along said main vacuum line and said milking stalls. The unit comprises vacuum operated components including a plurality of teat claw assemblies for milking a plurality of cows simultaneously. A pair of flexible auxiliary vacuum lines are provided on the milking unit and each auxiliary vacuum line has one end connected to operate all the vacuum operated components. Each auxiliary vacuum line has its other end adapted for connection to a vacuum port in the main vacuum line. In accordance with the method, at least one auxiliary vacuum line is always connected to a port in the main vacuum line to permit uninterrupted milking as said mobile milking unit is moved from one position to another to milk different groups of cows. Check valves are provided in each auxiliary vacuum line to close an auxiliary vacuum line whenever it is disconnected from a vacuum port.
Patent CA-1071024-A (CA)
Inventor: NIEMIEC ALBIN J
IPC: F01C19/08
Filed: 1977-05-31
Granted: 1980-02-05
Abstract: Abstract of the Disclosure In a rotary sliding vane pump having a non-circular cam ring which expands and contracts radially, a cheek plate is clamped against the end face of the cam ring and lies in rubbing contact with the rotor and vanes.  The cheek plate has a wearing face of low friction material such as bronze.  Unwanted wear between the cheek plate and the cam ring due to its expansion/contraction movements is reduced by the provision of one or more areas of hard metal adjacent the cam ring.     - i -
Patent CA-1080816-A (CA)
Inventor: CITTA RICHARD W
IPC: H03L7/087
Filed: 1977-08-16
Granted: 1980-07-01
Abstract: ABSTRACT OF THE DISCLOSURE An automatic phase and frequency control system includes a pair of multipliers coupled to a source of input signal.  A vol-tage controlled oscillator is also coupled to each of the multi-pliers.  Means are provided to phase shift the oscillator signal at one multiplier such that quadrature beat signals are produced. The output of one of the multipliers is coupled directly to a third multiplier while the output of the other is coupled to a low pass filter.  The filtered signal is amplitude limited and applied to the third multiplier.  A second low pass filter couples the output of the third multiplier to the frequency control input of the vol-tage controlled oscillator.
Patent CA-1106517-A (CA)
Inventor: WHITE DWAIN M
IPC: D01F9/12
Filed: 1977-08-19
Granted: 1981-08-04
Abstract: ABSTRACT OF THE DISCLOSURE                  Carbon fiber-polyetherimide matrix composites are provided, based on the use of polyether-imide having terminal nitro groups. The carbon fiber-polyetherimide composites have high strength, high modulus and superior solvent resistance.
Patent CA-1051304-A (CA)
Inventor: NORDSTROEM CAI GUSTAV RABBE
IPC: A61M5/32
Filed: 1977-09-12
Granted: 1979-03-27
Abstract: ABSTRACT OF THE DISCLOSURE A vein catheter device is disclosed in which a hollow pointed needle for puncturing a vein is disposed axially in a catheter.  The device is fitted with a connector providing an inlet for transfusion liquid into the catheter. An adaptor is used for connection of the inlet to a reservoir of transfusion liquid.  The hollow needle passes through a self-sealing closure of the con-nector through which closure the needle can be withdrawn after vein puncture. In addition to passing transfusion liquid into the catheter, a further liquid such as a medicament solution may be passed into the catheter through the self-sealing closure without interupting the transfusion.
Patent CA-1090601-A (CA)
Title: Protective pad or garment for the human body or parts  thereof
Inventor: ENG KJELL
IPC: D04B21/14
Filed: 1977-09-26
Granted: 1980-12-02
Abstract: Abstract of the Disclosure A protective pad or garment for use as a guard against injuries to the human body or parts thereof, incurred e.g. from saw blades or other sharp tools.  The pad is made from a double-knit warp fabric of a synthetic material, the two layers of which are interconnected by pile threads, preferably con-sisting of polypropylene foil strips, which pile threads in at least one of said layers form meshes with the threads of another thread system, or with themselves.  The resulting pad comprises a large number of the pile threads which by their nature and their bond to the mesh layer closest to the body resist the cutting effect of the saw blade or other sharp tool that may penetrate through the outer mesh layer.
Patent CA-1046381-A (CA)
Inventor: DANIELS JERRY L
IPC: F16H63/24
Filed: 1977-10-11
Granted: 1979-01-16
Abstract: SHIFT MODULATING CONTROL ACCUMULATOR                     Abstract of the Disclosure A hydraulic transmission control circuit for modulating the controls of a loader includes an accumulator connected to the reverse speed clutch.  The accumulator, which has a free sliding piston, has one end communicating with the reverse speed clutch, while the other end of the accumulator has an inlet communicating with the discharge port of a torque converter for charging the accumulator and an outlet communicating with a fluid reservoir through a check valve.  A directional control valve may be utilized to selectively connect the accumulator with the reverse speed clutch or a forward speed clutch for respective loader or bulldozer applications.
Patent CA-1129556-A (CA)
Title: Asynchronous-to-synchronous data concentration  system
Inventor: PECK RICHARD J
IPC: H04L25/38
Filed: 1977-10-27
Granted: 1982-08-10
Abstract: ASYNCHRONOUS-TO-SYNCHRONOUS  DATA CONCENTRATION SYSTEM     Abstract of the Disclosure Asynchronous character-oriented (start-stop) data are transmitted through a synchronous transmission channel at a rate which can exceed the synchronous rate.  The excess data rate is accomplished in an input buffer at the transmitter by suppressing occasional stop bits in proportion to the difference between synchronous and asynchronous rates.  An output buffer at the receiver detects start bits and thereafter monitors the presence or absence of stop bits.  When a stop bit is absent, the output buffer restores it before delivering the character to the data user.  Special control signals not organized into charac-ters, such as all-space signals, are also monitored at both transmitter and receiver to insure that stop bits are not spuriously inserted.
Patent CA-1079108-A (CA)
Inventor: KIKUCHI SHUICHI
IPC: G03D13/04
Filed: 1977-10-31
Granted: 1980-06-10
Abstract: ABSTRACT OF THE DISCLOSURE     A device for developing a photographed film by rolling up and down the film in a liquid developer is provided, which comprises a hollow body opened at the lower end thereof, a rotary shaft axially extending through the hollow body to be slidable thereto and having a length long enough to extend beyond the lower free end of the hollow body, and a disc attached to the lower end of the rotary shaft and adapted to close the lower end of the hollow body when the rotary shaft is raised to a predeter-mined level.
Patent CA-1111127-A (CA)
Inventor: IACONO ALFONSO LAKE STREET BRO
IPC: F23L11/00
Filed: 1977-11-08
Granted: 1981-10-20
Abstract: ABSTRACT OF THE DISCLOSURE A flue damper control includes a fuel pipe, a damper in the fuel pipe and an electro-mechanical control for opening and closing the damper according to thermostatically controlled conditions. The damper control is provided with an adjustment means to adjust "full" open and "full" close positions of the damper vane
Patent CA-1117653-A (CA)
Title: Wafer indexing system
Inventor: VOGEL MARCEL J
IPC: G01N27/04
Filed: 1977-12-02
Granted: 1982-02-02
Abstract: WAFER INDEXING SYSTEM            Abstract of the Disclosure A wafer indexing and mapping system is useful for pre-cisely locating artifacts, defects, and fabricated structural components on a wafer.  A permanent micrometer grid pattern is applied to the backside of the wafer, for example, a transparent bubble wafer.  The grid pattern forms an array of uniform size cells, for example, 40 unit cells wide by 40 unit cells long.  Each unit cell is divided into smaller units on each side.  Each cell contains a coding or indexing system to identify the row and column of the cell in the grid pattern.  The grid pattern contains orientation bars which identify orientation with respect to particular wafer reference lines.  The simultaneous viewing of the wafer and the grid pattern permits an accurate permanent mapping of the artifacts, defects, and fabricated structural components on the wafer, as well as on the individual small chips formed by dicing the wafer.
Patent CA-1085773-A (CA)
Inventor: GILBERT JOHN R B
IPC: C25D1/04
Filed: 1977-12-07
Granted: 1980-09-16
Abstract: ABSTRACT OF THE DISCLOSURE           An electrolytic cell, particularly one for use in the production of foil, in which the cathode comprises a rotating drum having a conforming anode spaced therefrom with a melded fibre interlayer.  The interlayer remains stationary whilst the drum rotates over the fibrous surface, thereby breaking up the depleted barrier layer adjacent the cathode, avoiding arcing and reducing the tendency for the cathode deposit to grow in a modular manner.
Patent CA-1090541-A (CA)
Title: Dispositif permettant de maintenir tous elements en feuille ou plaque sur un profile
Inventor: GILLOT MARCEL
IPC: F16B3/06
Filed: 1978-01-06
Granted: 1980-12-02
Abstract: Système pour assembler et maintenir en place tous éléments en feuilles ou plaques sur un profilé de base rainuré.  Il comprend essentiellement une pareclose comportant deux languettes verticales internes pourvues d'ergots longitudinaux venant s'encastrer par clipage sur la tête du profilé de base.  Ce profilé est muni, à cet effet, de rainures longitudinales parallèles sur ses deux faces parallèles et verticales.