baber/WOPTO huggingface dataset:
Patent GB-1032786-A (GB)
Title: A method for the manufacture of vulcanised rubber articles
Inventor: PARAGES FELIPE LUIS MARIA
IPC: B29C45/00
Filed: 1962-11-13
Abstract: 1,032,786. Injection moulding. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Nov. 13, 1963 [Nov. 13, 1962], No. 42945/62. Heading B5A. A method for the manufacture of a vulcanized moulded rubber article which comprises injection moulding a vulcanizable rubber composition comprising at least 10% by weight based on total rubber in the composition, of a cis 1,4-polyisoprene having a cis 1,4-content of at least 80% and an intrinsic viscosity as measured in toluene at 25‹ C. prior to compounding of between 6 and 12 dl./g. A screw injection moulding machine with a reciprocating screw is used. The feed is in the form of cold strips, it is necessary to provide cooling means on the cylinder and/or screw to prevent scorching or prevulcanization. The usual vulcanization accelerators and antioxidants are used. The examples refer to the moulding of shoe soles and ice-cube trays.
Patent GB-1260607-A (GB)
Title: Agent for the regulation of plant growth
Inventor: HOFER W
IPC: A01G/
Filed: 1970-09-09
Abstract: 1,260,607. Regulation of plant growth. FARBENFABRIKEN BAYER A.G. 9 Sept., 1970 [1 Oct., 1969], No. 43162/70. Heading C1B. 2 - Chloroethanethionophosphonic acid dichloride finds application as a plant growth regulant, e.g. in the growth inhibition of oat grains, apple seedlings, beans and wheat, and in the acceleration of ripening of tomatoes.
Patent GB-1018931-A (GB)
Title: Apparatus for electrostatically recording information
IPC: H04N5/82
Filed: 1961-12-29
Abstract: 1,018,931. Electrophotographic apparatus. GENERAL ELECTRIC CO. Dec. 29, 1961 [Dec.29, 1960], No. 43288/61. Heading G2H. An electrophotographic apparatus comprises a photoconductive thermoplastic medium, a device for applying a uniform electrostatic charge to the medium, means for producing a pattern of electromagnetic radiation on the charged surface and heating means for softening the medium to deform it in accordance with the pattern, the apparatus may also comprise means for selectively discharging the charged medium in the form of strips, and means for reading out the pattern on the deformed medium e.g. a schlieren system. As shown, a heat-deformable photoconductive thermoplastic tape 1 is passed under corona discharge 6 of 7500 to 8500 volts and the uniformly charged tape is passed under grill 16 and ultra violet lamp 12 to discharge the tape into strips. The tape then is exposed to transparency 13 by lamp 12, the tape being grounded by metal rollers 15 on an electrically conductive layer 20 and an electrically insulating support 21. The latent image charge pattern is developed by passing the tape 1 through a heating station 22 comprising electrodes 23 and 24 energized by high-frequency voltage deforming the tape in the charged areas. After heating the tape passes a phase contrast microscope 27 so that the deformations can be studied. The information on the tape is retrieved by a flying spot scanner 32, the spot being projected through the deformed storage medium on to a schlieren optical system and a photo-cell 35 which produces electrical signals corresponding to the deformations. Alternatively, the charged tape may be electrically grounded after exposure and before heating. Other electromagnetic radiative such as visible light, X-rays, and gamma rays may be used. The thermoplastic photoconductive medium used may be that described in Specification 1,018,932 and the method for using the apparatus may be that in Specification 1,018,933.
Patent GB-956499-A (GB)
Title: Improvements in or relating to magneto ignition systems
IPC: F02P3/01
Filed: 1961-12-05
Abstract: 956,499. Semi-conductor pulse circuits. BENDIX CORPORATION. Dec. 5, 1961 [Dec. 5, 1960], No. 43517/61. Heading H3T. [Also in Division F1] A transistorized ignition pulse generator comprises a transformer having a magnetic core and a magnetized rotor generating alternating current in the primary winding of the transformer. Assume that the rotor 13 is in such a position relative to the core 14 that the flux through the core has reached a maximum and has started to decrease whereby 22 is slightly positive. This makes the emitter 34 of the transistor 32 positive with respect to the base 31 so that transistor 32 is turned on. Therefore increased current now flows from the emitter to the collector 42 of the transistor 32 through collector 44 to base 37 of transistor 39 through winding 27 and through winding 11. By transformer feed-back action in coil 26 the current flow through the winding 27 causes a current flow in the winding 25 thus further increasing the base drive of transistor 32 still further causing the circuit to approach a shortcircuit on the winding 11 of the magneto. When the current reaches its peak value or when the transformer saturates the base drive voltage of the winding 25 reverses its polarity thereby causing the transistor 32 to turn off. This interrupts the current flowing through the primary winding 11 thereby inducing a voltage in the secondary winding 12. A similar cycle occurs when the rotor causes 24 to become positive. Should it be desired to utilize only one half of the flux reversals through the core 14 one of the transistors 32 and 39 may be omitted.
Patent GB-1004908-A (GB)
Title: Colouring of polymeric shaped structure surfaces
IPC: D06P3/79
Filed: 1962-11-19
Abstract: Shaped polymeric surfaces are coloured by bombarding the surfaces with finely divided abrasive particles suspended in a liquid which contains an organic dye dissolved or dispersed therein.  Specified polymers are polyethylene, polypropylene, polyoxymethylene and polyacrylic or polymethacrylic esters.
Patent GB-1105067-A (GB)
Title: Boring and facing heads
IPC: B23B29/034
Filed: 1965-10-14
Abstract: 1,105,067. Boring and facing heads. E. WOHLHAUPTER, and E. WOHLHAUPTER, [trading as EMIL. WOHLHAUPTER.u. CO.]. 14 Oct., 1965 [16 Oct., 1964], No. 43669/65. Heading B3C. A boring and facing head comprises a plurality of pairs of planetary gears 18, 19 any pair of which can be connected between a pair of central toothed rings 16b, 22 for displacing a cross slide 13 relative to the main body 11 of the head, each of the pairs of gears 18, 19 being connectable through inclined dog faces (18b), (19b), (Fig. 5, not shown) to complete the drive. Each pair of gears 18, 19 give a different feed rate to the cross-slide and selection is achieved by push button 26 acting through lever (33), (Fig. 3, not shown), to push the dog faces (18b), (19b) of the gears together. Release of a pair of gears is achieved by knob mechanism 75, (Fig. 2, not shown). Pneumatic, hydraulic or electromagnetic means may also be used (Fig. 4, not shown) to select and release a pair of gears. For returning the cross slide at a faster speed a retaining ring 25 is locked to a scale ring 16 by a retainer pin (48), (Fig. 3, not shown). In operation the retaining ring 25 is held stationary by rod (43) while the head rotates and actuation of the push buttons 26 couples the gears 18, 19 and drive scale ring 16 to operate, through pinion 15 and toothed ring 16a, the cross slide. The planet gears and toothed rings may have their teeth inclined so that a displacement force urges the said gears out of engagement with the dog faces. The displacement force is reacted by a spring and ball catch acting on the push button 26 which is released if the transmitted torque is too high.
Patent GB-1287954-A (GB)
IPC: C08K5/3447
Filed: 1969-09-04
Abstract: 1287954 Coatings MERCK & CO Inc 4 Sept 1969 [9 Sept 1968] 43800/69 Heading B2E [Also in Divisions A5 C2 and C3] Protective coatings for UV sensitive substrates comprise as UV-absorber (a) an N- (benzimidazol-2-yl) carboxamide of the formula in which R 1  is a carbocyclic or heterocyclic aryl radical having 1-3 nuclei attached to the carbonyl group directed or through a vinylene group and R 2  represents hydrogen, alkenoyl, alkenoyl, benzoyl, halobenzoyl, alkoxybenzoyl. alkoxycarbonyl, alkyl, phenyl, alkaryl or aralkyl (b) an N-(benzimidazol-2-yl) arylcarboxamide derived from a benzene polycarboxylic acid, in which the ring of the benzimidazole, benzene polycarboxylic acid or the aryl radical R 1  may be substituted by alkyl, alkenyl, aryl, phenalkyl. halophenyl, alkylphenyl, heteroaryl, halogen, nitro, hydroxy, alkoxy, phenoxy, naphthoxy, amino, alkylamino, dialkylamino, phenylamino, phenalkylamino, alkanamido, benzyamido, alkoxycarbonylamino, sulpho, carboxy, alkoxycarbonyl, cyano, alkanoyl, alkenoyl, benzoyl or alkanoyloxy groups. The UV-absorbers are incorporated in polymer compositions and lacquers and applied to substrates including plastic panels, cellulose films, textiles, tarpaulins, metals, wood and masonry. Reference has been directed by the Comptroller to Specification 1200617.
Patent GB-1448835-A (GB)
Title: Pulse level modifying circuits
IPC: H03K17/687
Filed: 1973-09-18
Abstract: 1448835 Pulse voltage level modifying circuits HITACHI Ltd 18 Sept 1973 [4 Oct 1972] 43810/73 Heading H3T A pulse level modifying circuit comprises an impedance, e.g. resistor R or a field transistor acting as such, connected between input and output terminals, a switching device M connected between the output terminal and a reference voltage terminal and an inverter IV connected between the control terminal of the switching device and the circuit input or output terminal. It is explained that the lower voltage level of the pulses departs from the desired zero level due to deterioration of the level in previous circuits. In the present embodiment, which receives negative going pulses, the switch becomes conductive, as the pulse approaches zero to lower the output level to earth potential.
Patent GB-1163552-A (GB)
Title: Integrated navigational situation display with high efficiency light beam combiner
IPC: G01C21/22
Filed: 1966-09-30
Abstract: 1,163,552. Optical projection apparatus. INTERNATIONAL STANDARD ELECTRIC CORP. Sept. 30, 1966 [Oct. 4, 1965], No. 43826/66. Heading G2J. In an optical projection system for use in navigational situation display, images from an axially and rotatably movable cylindrical map transparency 1 are projected by lens 35 and prism 36 on to screen 25 in superposition with images projected from cathode ray tube 26 by lens 28, prism 36 being located at the exit pupil of lens 35 and within the exit cone of light from lens 28. The map projection system is optically folded and is located within the transparency cylinder, a Dove prism in the system rotating the projected map image according to aircraft reading. Prism 36 is suspended by wires attached to ring 46 and may comprise two cemented prisms with a small reflecting spot on their hypotenuse interface.
Patent GB-1220247-A (GB)
Title: Capacitive voltage transformers
Inventor: TRAIN DAVID
IPC: H01F27/40
Filed: 1968-09-16
Abstract: 1,220,247. Voltage transformers. ENGLISH ELECTRIC CO. Ltd. 12 Sept., 1969 [16 Sept., 1968], No. 43928/68. Heading H2H. Ferro-resonant oscillations in a capacitive voltage transformer are suppressed by connecting a damping impedance across an intermediate electromagnetic transformer. A capacitive voltage transformer comprises serially connected capacitors across one of which is connected an inductive transformer 12 feeding a load 15. Ferro-resonant oscillations which may be set up in the device are detected by a tuned circuit 23, 24, connected across part of the primary winding 11, to produce a signal which is applied to the gate electrode of a semi-conductor switch 21 of the bidirectional type, thereby rendering the switch 21 conductive to connect a resistor 20 across part or all of the primary winding 11 of the transformer 12 socausing the oscillations to be damped. Alternatively the damping resistor and the tuned circuit may be connected across all or part of the same winding or different windings of the transformer 12.
Patent GB-1454171-A (GB)
Title: Tetracyclic compounds
IPC: C07D471/14
Filed: 1973-10-19
Abstract: 1454171 Pyrazinopyridoindoles COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH 19 Oct 1973 44002/73 Heading C2C The invention comprises compounds of formula and their pharmaceutically acceptable acid addition and quaternary ammonium salts, wherein X is alkylene, oxoalkylene or hydroxyalkylene and R is H, C 1-6  alkyl, aryl, aryloxy, CN, carboalkoxy, dialkylamino, benzodioxanyl or 4-pyridyl, or XR is H; R<SP>1</SP> is H or C 1-6  alkyl; and either Y=Z=H 2  or O, or Y=O and Z=H 2 . The diones are prepared by reacting haloacetyl compound (V) with R-X-NH 2 , and the mono-ones (XR=H; Ia) by reacting (II) with ethyleneimine. The compounds where Y=Z=H 2  are prepared by reducing (Ia) with LiAlH 4  and introducing the group XR (#H) by known reactions Therapeutic compositions having tranquillizing and hypotensive activity comprise the above compounds.
Patent GB-967069-A (GB)
Title: Semiconductor junctions having a retrograde distribution of impurities
IPC: H01L21/00
Filed: 1960-12-22
Abstract: 967,069. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 22, 1960 [Dec. 30, 1959], No. 44024/60. Heading H1K. A voltage variable capacitor comprising a PN junction monocrystalline body in the P (or N) region of which the uncompensated acceptor (or donor) concentration decreases with increasing distance from the junction from a maximum value near the junction is made by epitaxially depositing semi-conductor material or a semiconductor substrate. The predominance of a particular type of impurity is controlled during the process by selectively changing the temperatures of sources of the respective impurities. A typical device (Fig. 1) comprises a phosphorusdoped N type zone consisting of a region 1 of 0.05 ohm cm. resistivity and a region 2 in which the resistivity progressively decreases to 0.01 ohm cm., and a gallium doped P type zone 3. Ohmic contacts 5, 6 of tin antimony solder and indium respectively are attached as shown to complete the device. A similar device is made in the apparatus shown in Fig. 2 which consists of a sealed evacuated quartz tube 7 surrounded by independently controlled heating resistors 8A, 8B and 8C. A monocrystalline germanium substrate 11 is mounted as shown between a mass 9 of phosphorus doped germanium of 0.042-0.012 ohm cm. resistivity and a mass 10 of 0.002 ohm cm. boron doped germanium, the tube also containing iodine. In the first processing step the temperatures in zones within coils 8A, 8B and 8C are raised to 560‹, 410‹ and 430‹ C. respectively so that iodine reacts with mass 9 to form gaseous compounds which dissociate at the cooler surface of the substrate to form an epitaxial deposit of N type germanium. Subsequently the heaters are readjusted so that when equilibrium is re-established the temperatures are 430‹, 410‹ and 560‹ C. respectively. During the transitional stage the phosphorus concentration in the redeposited germanium at first increases to a maximum and then decreases as phosphorus doped germanium 9 cools and the boron doped germanium reacts with the iodine vapour and is redeposited epitaxially on the substrate to give a P-type layer.
Patent GB-1300019-A (GB)
Title: Improvements in magnetic compositions and in methods of making them
Inventor: MERTEN RONALD AARON
IPC: G11B5/714
Filed: 1971-09-22
Abstract: 1300019 Making magnetic metallic flakes INTERNATIONAL BUSINESS MACHINES CORP 22 Sept 1971 [28 Dec 1970] 44093/71 Heading B3A [Also in Division H1] A magnetic composition comprises metal flakes (0À001-1 micron thick, 0À01-5 microns diameter; coercivity more than 250 Oe) coated with a leafing lubricant. The flakes are made by milling metallic magnetic particles in presence of the lubricant and a volatile solvent. The magnetic particles, e.g. cobalt-phosphorus, iron or steel may be derived by vaporization or carbonyl techniques, electrodeposition on liquid cathodes, or chemical decomposition of plating baths. The lubricant may be a C 14-22  alkyl or alkenyl fatty acid, e.g. stearic acid; a derivative thereof, e.g. a metal soap; a petroleum or hydrogenated vegetable oil lubricant or a fluorocarbon resin. The size and thickness of the flakes is a function of the milling time and amount of metal particles present, and can range from hours to days. The flakes may also be made by other conventional procedures such as hammer or dry stamping or by attriting. In examples, chemically - produced cobalt - phosphorus particles (0À1 micron) (650 g.), stearic acid (20 g.) and mineral spirits (350 g.) are milled for 48 hours at 103 r.p.m. on a steel ball mill fitted with lifters. The wet slurry is washed with mineral spirit and filtered. Magnetic recording media are made by mixing a polymeric binder with the lubricant-coated flakes and coating the resulting paste on to a substrate (see Division H1).
Patent GB-1517658-A (GB)
Title: Internal combustion engine with exhaust-gas supercharging
IPC: F02B29/04
Filed: 1976-10-25
Abstract: 1517658 Supercharged IC engines KLOCKNER-HUMBOLDT-DEUTZ AG 25 Oct 1976 [29 Nov 1975] 44226/76 Heading F1B A supercharged I.C. engine 5 comprises an exhaust gas driven turbine 8 driving a compressor 9, an air cooler 10 at the compressor outlet and a supercharging air line 14, a connecting pipe 16 disposed between the line 14 and exhaust pipe 15, the connection to the exhaust pipe being upstream of the turbine inlet and a thermostatic control system 12, 13 to maintain the supercharging air at predetermined temperatures in dependence on the engine load. A blower 11 provides a flow of cooling air through the air coolers 10 and the rate of flow is controlled by valves 13, the position of which is determined by thermostat 12. Alternatively, the flow-rate of supercharging air can be varied by changing the speed of compressor 9 e.g. by hydraulic control. The supercharger 8, 9 is designed so that when the engine is operating at low power exhaust gas passes through pipe 16 and mixes with and increases the temperature of the supercharging air, whereas when the engine is operating at high-load, compressed air passes through pipe 16, in the opposite direction, thus reducing peak pressures in the cylinder and also cooling turbine 8. In a modification a valve 7 is provided which is controlled in dependence on the exhaust gas temperature and determines the amount of exhaust gas which is recirculated at low loads and the amount of supercharging air which is diverted at high loads.
Patent GB-893476-A (GB)
Title: Broadcast receivers
Inventor: WHITE LOUIS STUART
IPC: H04H1/00
Filed: 1957-03-13
Abstract: 893,476. Distributing music &c. COMMUNICATIONS PATENTS Ltd. June 12, 1958 [March 13, 1957], No. 44345/61. Divided out of 893,474. Drawings to Specification. Class 40 (4). A receiver for use in a wired distribution system has an impedance which when the receiver is switched to mains is connected over a programme selector switch to line and provides a means whereby programme popularity may be measured from the transmitting station. The description is the same as that given with reference to Fig. 1 in Specification 893,474.
Patent GB-1019958-A (GB)
Title: Weft straightening apparatus
IPC: D06H3/12
Filed: 1963-11-11
Abstract: 1,019,958. Finishing fabrics. MOUNT HOPE MACHINERY Ltd. Nov. 11, 1963 [Jan. 24, 1963], No. 44467/63. Heading D1S.  Weft straightening apparatus incorporating at least one rotatable bow correcting roll mounted on a longitudinal axis and rolls for guiding a travelling web to and from said bow correcting roll has provision made for a compound adjustment of the position of the or each bow connecting roll about its longitudinal mounting axis and about an axis normal to said longitudinal axis whereby it is possible to vary independently the relative path lengths as between the central and edge portions of the web and the relative path lengths of the opposite edge portions of the web. In the arrangement shown bowed rolls 10,12 and skew-correcting idler roll 14 are carried in a frame 26 consisting of end plates 27 and cross beam 28. The rolls 10, 12 are interconnected by gearing including a worm so that there relative angular position can be adjusted in opposite direction through shaft 40 driven from an electric motor 44. Further the frame 26 can be pivotted in pivot blocks 54 through nut and screw means 76, 70 driven from a motor 66. Faults in weft alignment are detected by suitable detecting means e.g. 82, 92 and such information used to control motors 44, 66, to correct skew and/or bow in the weft threads.
Patent GB-1067547-A (GB)
Title: Process and apparatus for automatically measuring the moisture content of a moving stream of fibrous and/or laminar material at predetermined time intervals
IPC: G01N27/04
Filed: 1964-10-30
Abstract: 1,067,547. Determining moisture content. MARTIN BRINKMANN A. G. Oct. 30, 1964 fact.31, 1963], No.44489/64. Heading G1N. In a method and apparatus for automatically determining the moisture content of a moving stream of fibrous and/or laminar material at predetermined time intervals, samples are removed periodically from the stream and pressed into contact with a measuring probe, and thereafter returned to the stream. Tobacco is dropped on to a catch plate from a conveyer as it passes from a delivery point on that conveyer to another conveyer beneath. Plates connected to pistons in compressed air cylinders are advanced to achieve the desired pressure of material on to the probe which comprises two electrodes mounted on the face of one of the plates. A semi-conductor temperature responsive element is mounted on the other plate and develops a temperature compensating signal. The test is controlled by solenoid operated valves in actuating air lines in accordance with an electrical programmer. In an alternative arrangement described with reference to Figs. 4-6 (not shown) a catch plate pivotally mounted above a stream of tobacco on a vibrating conveyer is lowered to collect a sample from a slight ramp built across a part of the shoot. The temperature is measured simultaneously with the moisture content, and when the tobacco is released compressed air is blown across the plates for scavenging purposes and to reduce the temperature of the semi-conductor below that of the tobacco. A resistance comparable to a desired water content is switched into circuit between readings.
Patent GB-987627-A (GB)
Title: Improvements in or relating to thermo-electronic converters
IPC: H01J45/00
Filed: 1963-11-13
Abstract: 987,627. Thermionic generators. CSFCOMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Nov. 13, 1963 [Nov. 19, 1962], No. 44786/63. Heading H1D. In a thermionic generator comprising an electron emitter 2, Fig. 1, and an electron collector 3 located within a vacuum-tight enclosure filled with an ionizable gas or vapour, radiant energy is admitted into and concentrated within the enclosure, whereby neutral gas or vapour atoms are excited by photonbombardment, and enhanced ionization thereof by electrons from the emitter is obtained. As shown, solar energy is directed through a sapphire window 6, sealed within titanium cylinder, to heat emitter 2, photons also passing through aperture 8 to be reflected between electrodes 2, 3, and thereby excite the caesium vapour filling which may be at a pressure of 1 or 2 Torr. Alternatively, the emitter may comprise a coating on window 6 which is then sealed directly on to a cup-shaped collector, Fig. 2 (not shown). In a further arrangement, photons are admitted through a window 12, Fig. 3, in opaque insulating ring 4, which is then provided with a light-reflective coating 14. Alternatively, opaque ring 4 may be replaced by a cylindrical sapphire window surrounded by a cylindrical mirror provided with an aperture through which light is directed.