baber/WOPTO huggingface dataset:
Patent GB-1095967-A (GB)
Title: Nuclear reactor
Inventor: MALHERBE JEAN
IPC: G21C19/04
Filed: 1966-09-29
Abstract: 1,095,967. Reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. Sept. 29, 1966 [Oct. 6, 1965; Sept. 5, 1966], No. 43516/66. Heading G6C. A nuclear reactor is cooled by a coolant flow in channels of constant cross-section which are each occupied by a train of fuel cartridges, each cartridge being formed by a fuel element supported in a tubular jacket of moderator material, the jacket of at least the terminal cartridge at the channel end opposite that through which the cartridges are unloaded being of smaller cross-sectional area than the jackets of the cartridges in the channel nearest the end through which the cartridges are unloaded. By this means the force due to the coolant flow acting on the terminal cartridge when this is the last remaining during discharge of the cartridges is limited to an appropriate value. In the preferred embodiment, as shown in Fig. 3, a channel 4a of constant cross-section contains a stack of fuel cartridges all of similar construction, the terminal cartridge 17, for example, being formed by a graphite jacket 18a containing a fuel element 20a borne by a saddle 22a connected to the jacket by retaining wires 23a and centred by partitions 24a. The o.d. of the jacket 18a (like that of the jackets further up the channel) is such that only a slight gap exists between it and the channel wall and substantially all the cooling gas, e.g. CO 2 , flows between the jacket 18a and the fuel element 20a. At least the bottom cartridge 17 has a jacket 18a whose i.d. is greater than the i.d. of the jackets 18a<SP>11</SP>, 18a<SP>111</SP> of the standard cartridges 17<SP>11</SP>, 17<SP>111</SP> in the top part of the channel. The force experienced by the cartridges, more particularly by the fuel elements, is therefore less for the bottom cartridges 17 than for the standard cartridges. In an alternative embodiment, all the jackets have the same i.d., the upper jackets being in close contact with the channel wall whereas the lower jackets are spaced from the channel wall. During normal operation, therefore, substantially all the coolant flows between the jackets and the fuel elements but once the upper cartridges have been removed, a by-pass flow occurs between the lower jackets and the channel wall. The total flow through the channel increases but the pressure drop between the ends of the remaining cartridges, and the force experienced thereby, decreases because of the increased pressure losses due to the fixed elements of the channel, more particularly the debris collector at the bottom of the channel.
Patent GB-1516249-A (GB)
Title: Pacifier
IPC: A61J17/00
Filed: 1976-10-20
Abstract: 1516249 Baby pacifier HANS BLOMSTEDT HANDELSBOLAG 20 Oct 1976 [31 Oct 1975] 43519/76 Heading A5R A pacifier comprises a teat attached to a shield by a holder such that during use the front teeth have an unobstructed bite. The teat 10 is spherical and attached to the shield 7 by a pair of bent arms 8, 13 and 9, 14 having flattened areas 11, 12 for taking the bite of the side teeth. The pacifier may be unitary or may comprise a teat connected at its surface with the arms. Alternatively the arms may be connected within or outside the teat. The flattened areas 11, 12 may have a fluted bite pattern and the bent arms may be supplemented by bands 21, 22 Fig. 9, attached to the arms or teat.
Patent GB-1308934-A (GB)
Title: Alkylated amine copolymers
IPC: C08G12/38
Filed: 1970-09-11
Abstract: 1308934 Water-soluble methylated ureamelamine-formaldehyde resins FIBERGLAS CANADA Ltd 11 Sept 1970 [4 Feb 1970] 43596/70 Heading C3R A water-soluble resin is obtained by reaction together of urea, formaldehyde and methanol in the presence of an alkanolamine and a water at a slightly alkaline pH and elevated temperature, followed by addition of a fatty acid and melamine and reaction at a slightly acid pH and elevated temperature and preferably bringing the product to a neutral or slightly alkaline final pH, there being used at least 1-8 mols. formaldehyde, at least 1À2 mols. methanol, at least 0À005 mols. alkanolamine, at least 0À002 mols. fatty acid and at least 0À1 mols. melamine per mol. of urea. The preferred proportions are 1À8-2À3 formaldehyde, 1À2-2À6 methanol, 0À005-0À007 alkanolamine, 0À002-0À003 fatty acid and 0À1-0À3 melamine, in mols. per mol. of urea. In Examples 1-4 the formaldehyde is used in the form of a 40% solution in methanol/ water; the alkanolamine is diethanolamine or triethanolamine ; the fatty acid lauric acid or a tall oil acid mixture; pH adjustment is assisted in some cases with maleic acid or anhydride or with ammonia. In Examples 5 and 6 formulations of the products, with and without a phenolic resin, with a mineral oil, a silicone and ammonium sulphate are described, for use with glass fibres as binder suspensions.
Patent GB-1446948-A (GB)
Title: Code programming device
IPC: G06F7/02
Filed: 1973-09-18
Abstract: 1446948 Selective signalling PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 Sept 1973 [21 Sept 1972] 43758/73 Heading G4H  A code programming device, comprises (a) a circuit unit having a number of connection terminals and (b) a separate coding matrix having output conductors coupled to said connection terminals for supplying a specific signal combination, determined by said matrix, to said circuit unit, said device including a part-code generator coupled to input conductors of said matrix for simultaneously supplying each said input conductor continuously and repetitively with its own part-code of at least two different bits in serial form, the circuit unit including means for assembling together in order partcodes coupled to the various connection terminals to form a code signal made up from the various bits of these part-codes in serial or parallel form.  Fig. 1 shows a reference-address generator in a paging receiver, the address being effectively specified by a coding matrix 1, the aim being to minimize the number of connections into an envelope 10. A clock train at 11 switches a bi-stable 7 to energize matrix columns 3, 4 alternately, columns 2, 5 being permanently deenergized and energised, respectively, so each column carries a respective one of the possible 2-bit signals and each matrix row delivers a 2-bit signal depending on the matrix connections, repeatedly. A counter 14 driven from bi-stable 7 controls a logic tree 12 to route these 8 row signals in turn via a terminal 11<SP>1</SP> to a comparator (not shown). A modification (Fig. 3, not shown) constitutes the generated address from nine 3-bit signals instead of eight 2-bit signals. Another modification (Fig. 5, not shown) has the unit corresponding to bi-stable 7 outside the envelope, and one of its two outputs is used inside the envelope to gate successive parallel outputs of the coding matrix into two sets of bi-stables alternately, to feed the comparator in parallel. One or both sets of bi-stables may be dispensed with.
Patent GB-1299988-A (GB)
Title: A thread storage-feed device for textile machines
Inventor: FREI KARL
IPC: D04B15/48
Filed: 1970-09-15
Abstract: 1299988 Knitting-machines K FREI 15 Sept 1970 [20 Sept 1969] 43947/70 Heading D1C A thread storage-feed device comprises a circular array of parallel cylinders 16 alternate arms of which rotate continuously or oscillate in opposite directions. Thread turns are wound onto the free flared ends 30 of the cylinders by a rotating disc 22. Pressure of the lowest turn forces the stack of turns upwards. Movement of the cylinders, drive by a gear train from the disc drive, reduces frictional resistance. Winding ceases when a magnet 62 carried by a disc 60 supported by the turns, switches off a contact 66. Winding recommences when the lower contact 68 is actuated.
Patent GB-1194844-A (GB)
Title: Improvements in Brakes
Inventor: MARGETTS HUGH GRENVILLE
IPC: F16D55/224
Filed: 1966-10-01
Abstract: 1,194,844. Disc brakes; brake cylinders and pistons. GIRLING Ltd. 21 Sept., 1967 [1 Oct., 1966], No. 43948/66. Headings F2E and F2F. In a floating disc brake having an hydraulic and a mechanical actuator the mechanical actuator includes a rotary face cam 18 (Fig. 1) housed in a piston 20 and a second cam 30 (Fig. 2) rotatable about an axis offset from the axis of the piston 19, 20 so as to engage a movable part 22 of the rotary face cam 18. The brake has a yoke 12 slidable in grooves 13 in a body 10 so that a brake pad 14 is indirectly operated by the piston 20 which has a groove (26, Fig. 3, not shown), locating an end of the yoke 12. The other pad 15 is directly operated on by a further piston 19. Rotation of the lever 32 moves the part or disc 22 by action of the cam 30. This causes the pistons 19 and 20 to move apart due to the action of balls or rollers 23 in helically inclined grooves in the disc 22 and bottom of the piston 20. Automatic wear adjustment of the type described in Specification 1.179,235 is provided by a strut 24 and screw threaded nut 25. The brake may be used on a front wheel drive vehicle where the parking brake is required on the front wheels. Rattling of the brake and of the mechanical actuator 18 is prevented by leaf springs 16 and a Belleville washer 28. In a modified brake (Figs. 4-7, not shown), the piston 20 (40) is positioned with its open end outwardly and the cam grooves 18 are provided in a cover 42 sealed to the piston 40. The Belleville washer is replaced by a helical spring (43). A specially shaped spring (53) passes round the strut 24 and is secured at one end (54) to the piston 19 so as to prevent the strut from turning when the piston 19 is screwed in to replace a worn pad. The lever 32 (46) may be attached to a cable (57) or sheathing (55) of a Bowden cable (56) having the sheathing or cable secured to the slidable yoke (44). The lever is returned by a spring (59) and the yoke (44) is biased outwardly by a spring (58) which together with the sheath (55) resists tilting of the yoke when the cable (57) is operated to move the lever (46) anticlockwise. In a further modification the disc brake may be of the swinging calliper type having the rotary face cam 18 acting on an automatic adjuster co-operating with the blind bore in the body member 10, the piston accommodating the rotary face cam being slidable in the blind bore. The brake may be a drum brake with the piston accommodating the rotary face cam acting on a brake shoe web.
Patent GB-979823-A (GB)
Title: Improvements in or relating to disc brakes
IPC: F16D55/228
Filed: 1962-11-21
Abstract: 979,823. Disc brakes. FICHTEL & SACHS A.G. Nov. 21, 1962 [Nov. 24, 1961], No. 44073/62. Heading F2E. [Also in Division B7] A disc brake for a vehicle, such as a cycle or like monotrack vehicle, in which the wheel is guided in a fork 16 comprises brake discs 2 disposed externally one on each side of the wheel hub 1 and adapted to be engaged frictionally by brake pads 12 carried by brake shoes 11 pivoted to the ends of levers 8 adapted to be actuated by an actuating element in the form of a screw and nut assembly 6, 7 extending through the hollow wheel hub. A lever 15 is rotatably mounted on the frame and is adapted to transmit the braking force to the brake shoes through the screw and nut assembly 6, 7. The brake shoes 11 slide in guides 13 formed in the fork 16. The brake discs 2 may be formed of iron or steel embedded into the sides of a light metal hub. Springs 14 are provided to return the brake levers to their inoperative positions. Instead of a screw or nut assembly, the actuating element may be formed as an hydraulic brake cylinder or a cable and lever system.
Patent GB-1262598-A (GB)
Title: Slip-clutch
Inventor: YOSHII TETSUJI
IPC: F16D7/02
Filed: 1970-09-15
Abstract: 1,262,598. Slip couplings. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 15 Sept., 1970 [19 Sept., 1969; 2 Oct., 1969], No. 44081/70. Heading F2U. A slip coupling consists of friction pads 14a ... 14d mounted between axially loaded discs 11 and capable of radial movement in response to variations of frictional coefficient in order to operate at a constant load torque. As shown the pads are carried by curved spring arms 13a ... 13d with stop pins 15a ... 15d limiting their outward movement, but they may be movable along grooves in the discs or carried by spring loaded rigid arms, Figs 5-8 (not shown). The working surfaces of the friction discs may be flat or conical.
Patent GB-1379580-A (GB)
Title: Semiconductor integrated circuits
IPC: H03F3/50
Filed: 1971-09-22
Abstract: 1379580 Transistor circuits FERRANTI Ltd 21 Sept 1972 [22 Sept 1971] 44264/71 Heading H3T An integrated circuit emitter follower comprises a first transistor T1 with its emitter load constituted by a second transistor T2, the latter being biased by a circuit comprising a resistor R and third transistor T3, the output being taken from the emitter of T1 via a capacitor C. In operation, the potential V is such that the transistors are conductive, and an impedance exists between the base of transistor T1 and earth having a magnitude equal to the product of the impedance between point B and line 10 and the current gain factor of T1.
Patent GB-1156706-A (GB)
Title: Improvements in and relating to the Location of Leaks in Heat Exchangers.
IPC: G21C17/00
Filed: 1966-10-05
Abstract: 1,156,706. Testing for leakage. SULZER BROS. Ltd. Oct. 5, 1966 [Oct. 5, 1965], No.44515/66. Heading G1S. In a heat exchanger comprising a number of tubes 23 in parallel and connected together at each end by leaders 21, 22, leaks are detected by means of a tracer gas which is introduced into the tank 20 surrounding the tubes, each tube being connected by a pipe 26 to a tracer detection device 27, such that each tube can be individually tested by drawing off the fluid in the tube and the tracer gas through the detector 27 by a vacuum pump 28. In a modification, the connections to the detectors are mid-way along the tubes, and in a further modification, one of the leaders has closable apertures facing the ends of the tubes such that the detector pipes can be introduced directly. In a further arrangement, the invention is applied to the cooling system of a nuclear reactor, and in this case, a scavenging gas is fed through the system.
Patent GB-1116094-A (GB)
Title: Improvements in water tube boilers
IPC: F22B21/34
Filed: 1965-10-21
Abstract: 1,116,094. Water tube boilers. ATELIERS HENRI LARDET. 21 Oct., 1965 [19 Nov., 1964], No. 44544/65. Heading F4A. A water tube boiler comprises a gas-tight refractory lined sheet metal cylindrical casing 1 with a flattened base, which encloses an upper steam and water drum 12 (Fig. 1, not shown), and a lower water drum (11). C-shaped finned tubes 10 extend between the drums along the length of the boiler to define a combustion chamber having a burner opening 5 in its front wall 3 and a rear wall 4 covered with further tubes 14. Further close pitched tubular screen walls 15, 16 define a return gas convection pass containing a nest of convection generating tubes 18. The wall 16 may alternatively be formed from finned tubes 16a, or refractory supported tubes 16b and is augmented by a sheet metal wall 17 which partly defines a further gas passage leading to an outlet 6, which may alternatively be situated in the side wall of the boiler casing 1. Defective tubes may be replaced through flue outlet 6, burner opening 5 or manholes (7, Fig 1) without the need for dismantling the gas-tight casing of the boiler.
Patent GB-1013460-A (GB)
Title: Treatment of soil
Inventor: AMAGASA MICHIO
IPC: C05G3/90
Filed: 1964-11-02
Abstract: Conversion of ammonium to nitrate ions in soil is inhibited by treatment with a pyrimidine derivative of the formula: <FORM:1013460/C1/1> wherein X is amino, chloro or trichloromethyl, Y is hydrogen, amino, chloro or tricyloromethyl, and Z is methyl, chloro or trichloromethyl except that X, Y and Z may not all be chloro or trichloromethyl.  The pyrimidine derivative may be employed in an amount of 1-100 parts per million parts of soil and may be in a composition together with a reduced nitrogen fertilizer, e.g. ammonium sulphate or Phosphate, urea or cyanamide, in an amount of at least 0.5% based on the reduced nitrogen content.  Other constituents may be potassium chloride, chalk, gypsum, vermiculite, bentonite, diatomaceous earth, water, xylene, petroleum distillate, and sodium dodecyl benzene sulphonate.  The composition may be in the form of powder, granules, suspension or emulsion.
Patent GB-1079934-A (GB)
Title: Photographic gelatin hardening baths
IPC: G03C5/26
Filed: 1964-11-04
Abstract: A gelatin-hardening bath comprises succinaldehyde or a succinaldehyde-supplying compound, e.g. dimethoxy- or diethoxy-tetrahydrofuran, either formaldehyde or mucochloric acid, an alkali metal sulphate, an alkali metal bromide and one or more polymerization-inhibitors which may be dioxan, ascorbic acid, acetyl acetone, a C6- 15 aliphatic alcohol, an aromatic sulphinic acid, kojic acid or a C2- 4 amino acid, e.g. glycine.  Its pH may be between 2 and 10 and it may be used to harden gelatin-silver halide emulsions at any stage during a black and white or colour photographic processing sequence.
Patent GB-1038836-A (GB)
Title: Improvements in or relating to bases for upright poles
Inventor: EYRE EDWIN MELROSE
IPC: E04H12/22
Filed: 1963-11-14
Abstract: 1,038,836. Cricket nets. RYLAND WORKS Ltd. Sept. 11,1964 [Nov. 14,1963], No. 44943/63. Heading A6D. [Also in Division E1] A braced framework which may support netting for cricket practice, fruit trees, &c. Includes poles 3 each supported by a ground plate 4 having a fixed spike 7 and loose spikes 10. The pole 3 may be welded to the plate, in which case the spike 7 is formed by the end of the pole, or may be detachably mounted on or in a short length of tubing welded to the plate to form the fixed spike The loose spikes are headed and may be of T or L section and engage corresponding holes in the plate 4 which may be circular, square, rectangular or triangular.
Patent GB-962677-A (GB)
Title: Frequency stable pulse oscillator
IPC: H03K3/30
Filed: 1961-12-15
Abstract: 962,677. Transistor pulse generating circuits. GENERAL TELEPHONE & ELECTRONICS LABORATORIES Inc. Dec. 15, 1961 [Dec. 28, 1960], No. 45096/61. Heading H3T. A transistor pulse-generating circuit comprises a parallel resonant circuit determining the frequency of oscillation coupled into both the output circuit and input circuit of the transistor so as to maintain oscillations therein and means providing additional positive feedback between output and input circuits whereby pulses are produced in the output circuit. The parallel resonant circuit 20, 22 is coupled to the transistor 10 so that the circuit functions as a Hartley oscillator; additional feedback is provided by transformer 16 whereby the sinusoidal oscillations produced within the resonant circuit are of sufficient amplitude to render the transistor alternately conducting and non-conducting so that a rectangular-wave output is produced. A biasing network comprising the parallel connection of capacitor 12 and resistor 14 is connected in series with the secondary winding of the transformer and the parallel resonant circuit.
Patent GB-1476346-A (GB)
Title: Herbicide
Inventor: FISCHER A
IPC: C07D/
Filed: 1974-10-18
Abstract: 1476346 Mixed herbicides BASF AG 18 Oct 1974 [19 Oct 1973] 45183/74 Heading A5E. A herbicide comprises a composition of a) a benzofuranylalkylamino sulphonate of formula where R, R<SP>1</SP> and R<SP>2</SP> each denote hydrogen or an unsubstituted or alkoxy- or halogen-substituted aliphatic radical of a maximum of 4 carbon atoms, and b) a pyridazone, or c) a carbamate or a thiol carbamate, d) a substitute fatty acid. e) a uracil, f) ethyl-N-benzoyl-N-(3, 4-dichlorophenyl)-2-aminopropionate or g) a pyrazolium sulfate. Other herbicides also may be included and the compositions may be used as total or selective herbicides. The examples illustrate the use of two and three component mixtures.
Patent GB-1487399-A (GB)
Title: Optical imaging
IPC: G02B5/18
Filed: 1974-10-18
Abstract: 1487399 Spatial filtering PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 Oct 1974 [23 Oct 1973] 45227/74 Heading G2J The image of an object (which object comprises a plurality of individual identical objects arranged in a periodic array) is rendered substantially defect free and of increased depth of focus by selective spatial filtering of the Fraunhofer diffraction pattern orders. The Fraunhofer diffraction pattern of a regular array of hexagonally arranged holes is shown by X's in Fig. 4. A spatial filter allows only those diffraction images encircled to pass on to form the reconstituted image. This has three effects:-(a) the depth of field of the reconstituted image is increased; (b) the minor periodic defects are removed; (c) the number of "holes" in the image may be different from that in the object dependent on the "order" of the Fraunhofer images transmitted by the spatial filter.
Patent GB-1119650-A (GB)
IPC: F25B19/00
Filed: 1966-10-12
Abstract: 1,119,650. Refrigerating. COLONIAL SUGAR REFINING CO. Ltd. 12 Oct., 1966, [21 Oct., 1965], No. 45504/66. Heading F4H. In a system of refrigerating a chamber by passing liquid carbon dioxide from a storage tank 1 to spray nozzles 17 in the chamber, a reservoir 21 is provided in such manner that, at termination of spraying, the reservoir contains gaseous carbon dioxide at a sufficient pressure to flush the nozzles of liquid carbon dioxide to prevent dry ice formation. As illustrated carbon dioxide is contained in the tank 1 at a pressure of about 100 psig by a relief valve 9 which opens at about 110 psig, the relief line including a heater 8. When a chamber temperature controller 15 demands refrigeration, a valve 14 is opened to supply the nozzles 17 with liquid carbon dioxide. Simultaneously with the opening of valve 14, a valve 23 is opened to allow carbon dioxide which has been vapourized in a chamber heat exchanger 27 to enter the reservoir 21. When the demand for refrigeration ceases, the valves 14 and 23 are closed, and when the pressure in a line 16 has fallen to 10 psig below that in the reservoir 21, a non- return valve 19 opens to allow gas from the reservoir to flush the nozzles. A relief valve 26 and heater 25 are porvided to prevent over pressure at the heat exchanger 27. The storage tank 1 is filled through a coaxial pipe arrangement 2, 6 from a source 3. In another embodiment, Fig. 1 (not shown), the only communication between the tank and the nozzles is through the chamber heat exchanger and a single valve operated by the temperature controller, and the reservoir is in permanent communication with the nozzles, the non-return valve being omitted. At the commencement of refrigeration, gaseous carbon dioxide first flows to the nozzles and the reservoir, and after termination of liquid flow to the nozzles, the gas remaining in the reservoir flushes the nozzles.
Patent GB-1076597-A (GB)
Title: A method of and a device for starting autogenerators
IPC: F02C5/08
Filed: 1964-11-09
Abstract: 1,076,597. Starting free-piston autogenerators. SOCIETE D'ETUDES ET DE PARTICIPATIONS EAU GAZ ELECTRICITE ENERGIE S. A. Nov. 9, 1964 [Feb. 10, 1964], No. 45551/64. Heading FIQ. In a method of starting a group of free-piston autogenerators interconnected via their compressed air reservoirs, the compressed air reservoirs of the free-piston autogenerators are disconnected so as to be out of communication during starting, and the autogenerators then operate independently over a period of time preferably during the warming up period of the autogenerators, whereafter the reservoirs are placed in communication. As shown a valve 16 is provided in the duct 12 interconnecting the casings 10 so that the communication between the casings can be interrupted. The valve can be controlled manually or automatically in dependence on the temperature of the air in the casings 10 or duct 12 or the temperature of the gases in the duct 14. The closure means in the duct 12 may otherwise be controlled by a timer device (not shown). In practice each autogenerator usually comprises two double opposed pistons.