baber/WOPTO huggingface dataset:
Patent GB-1326572-A (GB)
Title: Clay-coated paper for pressure-sensitive copying paper systems
IPC: B41M5/155
Filed: 1970-10-21
Abstract: 1326572 Pressure-sensitive recording sheet FUJI PHOTO FILM CO Ltd 21 Oct 1970 [22 Oct 1969 49993/70] Heading D2B A pressure-sensitive recording sheet comprises a paper support having coated on one face thereof a layer comprising an electronaccepting absorbent clay, a latex binder, and a material yielding a polymeric anionic component when dissolved in water, said component being selected from acidic polymers and their alkali metal salts, gum arabic, pectin, pictinic acid, starch sulphate and starch phosphate, and the sulphuric acid and phosphoric acid esters of hydroxyethyl cellulose. Specified alkali metal salts of acidic polymers include sodium polyacrylate, sodium alginate, sodium carboxymethyl cellulose, sodium carboxyethyl cellulose, sodium carboxymethyl ether of hydroxyethyl cellulose, sodium salt of a styrene-maleic anhydride copolymer, sodium polyglutamate, sodium polyasparaginate, sodium polymethacrylate, sodium salt of a butadiene - methacrylic acid copolymer, sodium salt of an ethylene-maleic anhydride copolymer, sodium carboxymethyl starch, sodium salt of a methyl vinyl ethermaleic anhydride copolymer, sodium carboxymethyl ether-mallic anhydride copolymer, and potassium polyvinylbenzene sulphonate. A layer of microcapsules containing a colour former may be applied to the layer above, or to the other face of the paper support. A metal oxide and/or a metal salt may be incorporated in the clay-containing layer.
Patent GB-1184610-A (GB)
Title: A Device of Fixed Combined Aerials for Two Wavebands.
IPC: H01Q5/15
Filed: 1967-11-06
Abstract: 1,184,610. Aerials. C.I.T. COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS. 6 Nov., 1967 [4 Nov., 1966; 20 Sept., 1967], No.50295/67. Heading H4A. A dual waveband aerial device has a length   (A + B + C) of substantially (# 1 /4), where # 1  is   the wavelength corresponding to the middle of the lower frequency band, and comprises a vertically disposed section 17 of whip aerial type whose lower end is fixed in the top of a cylindrical metal casing 20 having a length (B) of (# 2 /2), where # 2  is the wavelength corresponding   to the middle of the higher frequency band. A co-axial feeder 23 enters from a ground plane 15 into the bottom of the casing 20 and penetrates to its centre, where it is connected to a horizontally disposed dipole 18, 18<SP>1</SP> for operation at the wavelength # 2 . A balun is thereby provided, the dipole halves 18, 18<SP>1</SP> being fed symmetrically. An upper frequency transmitter 11 is connected to the inner and outer conductors of the feeder 23 through a transformer 12, and a lower frequency transmitter 13 is connected to the outer conductor of the feeder 23 and to the ground plane 15 through a transformer 14. The transmitters 11, 13 may be operated simultaneously.
Patent GB-1268639-A (GB)
Title: Control surfaces for fixed wing airborne vehicles
Inventor: BREBNERBNER GEORGE GILL
IPC: F42B10/64
Filed: 1968-05-30
Abstract: 1,268,639. Movable wing structures. DEFENCE SECRETARY OF STATE FOR. 10 June, 1969 [30 May, 1968; 25 Oct., 1968], Nos. 26003/68 and 50678/68. Headings B7G and B7W. An air-borne vehicle 11 has movable control surfaces 14, 16 and 15, 17 pivotable about preferably parallel spanwise axes T F -Y F , Y R -Y R , and may have a further pair of such surfaces 18, 19 movable about parallel axes normal to Y F -Y F , Y R -Y R . Guidance control signals from a unit 23 are fed to the surfaces 14 ... 19 via actuators 20, 21, 22 in order to direct the pitch and yaw attitudes, and roll and bank control. As shown, fixed wings 12 are provided, or there may be a cruciform wing arrangement with further wings 24 and two more control surfaces. A tail unit with conventional control surfaces may be incorporated.
Patent GB-1117315-A (GB)
Title: Nuclear reactors
Inventor: MARTIN HUGH ALLAN
IPC: G21C7/22
Filed: 1964-12-14
Abstract: 1,117,315. Controlling reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 26 Oct., 1965 [14 Dec., 1964], No. 50751/64. Heading G6C. In a nuclear reactor control system a control fluid is passed through a matrix of channels in the core. The fluid is separate from the coolant. Both spectral shift and flux-trap control may be effected or the fluid may be a neutron absorber such as boric acid or cadmium nitrate solution. A purging liquid, e.g. water, may be pumped round the control ducting and the system cooled by passing the control fluid through external heat exchangers. Reactor shut-down heat is extracted in this way. The reactor coolant flow is arranged so as to balance the control fluid and coolant pressures across the channel walls. In the spectral shift control method, the control fluid is a mixture of light and heavy water. Where an absorber liquid is employed, Fig. 2, the water cooled fuel channels 13 are separated by the zircalny sheets 13a, 13b between which the control liquid is urged. Cross pressures between the coolant channels are illuminated by the perforations 32. For an emergency condition, a highly concentrated neutron absorber may be introduced into the spaces between 13a and 13b.
Patent GB-1075650-A (GB)
Title: Improvements in or relating to filter collectors
IPC: B01D46/04
Filed: 1965-12-01
Abstract: 1,075,650. Gas filter. H. T. YOUNG. Dec. 1, 1965 [Aug. 30, 1965], No. 50895/65. Heading BIT. [Also in Division E2] In a gas filter, comprising a plurality of elongated filter socks 15 mounted over internal cages 14, the open ends of these filter elements projecting through a tube sheet 8 separating an inlet chamber 5 from an outlet chamber 7, the outlet chamber 7 has an access door 29, hinged to the housing and carrying manifolds 43 and reverse-flow tubes 42 for periodic cleaning of the filter elements. Three manifolds 43 inside door 29 connect by solenoid valves (47) to a single manifold (45) outside the door, and the inlet chamber 5 has a dustdischarge hopper (6) with an air-lock (Figs. 1, 2, not shown). Door 29 has a peripheral sealing gasket 36 and hold-down clamps 38, and, when opened, exposes tube sheet 8 and the outlet nozzles 20 of filter elements 10. By unscrewing clamps 27, 28 (Fig. 5, not shown), which hold end flanges 18 of elements 10 against tube sheet 8, elements 10 are released and may then be withdrawn through their holes in tube sheet 8. Ring gaskets 19 are fitted between flanges 18 and tube sheet 8. Cages 14 comprise rods 17 and rings 22, 23, attached to end rings 16, and socks 15 have closed pervious ends 24 and are secured over rings 16 by clamps 25.
Patent GB-1291947-A (GB)
Title: Methods and apparatus for making articles from fibre-reinforced plastics materials, and articles made by such methods and apparatus
Inventor: REINKE FRITZ
IPC: B29B15/10
Filed: 1970-10-28
Abstract: 1291947 Laminating F REINKE 28 Oct 1970 [7 Nov 1969] 51221/70 Heading B5N [Also in Division F2] Laminates comprising layers of fibre reinforced plastics material are made by superposing layers 2 of the fibres over the liquid resin 1 and tamping said layers into the resin by directing blows substantially perpendicularly to the base of the laminate in adjacent areas arranged in a gridlike pattern and moving the layer relative to the areas, the amplitude of the blows within the individual areas decreasing from a region of maximum amplitude towards the place where the laminate leaves said areas. The blows may be directed at two groups of areas, the blows in the two groups taking place alternately and the areas in one group being adjacent the areas in another. The pressure on the layers within one group of areas may be maintained until the next blow in the other group of areas. The layers may be transported in a direction perpendicular to the blows and/or the tamping may contain a component in the direction of movement. The adjacent areas are preferably between 0À1 and 10 mm. apart and the width of the areas may be different when one group, preferably the smaller, is tamped at a higher frequency and a smaller amplitude than the other. The blows may be applied by means of impulse transmitters, pressure pads or oscillating diaphragms, a wide variety of which are described.
Patent GB-1246919-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F02B1/04
Filed: 1969-10-20
Abstract: 1,246,919. I.C. engine combustion chambers. DAIMLER-BENZ A.G. Oct.20, 1969 [Oct.24, 1968], No.51315/69. Heading F1B. In an I.C. engine having swirling mixture inflow and extraneous ignition, in which fuel is mixed with air in a carburetter or is injected into the induction pipe, the piston 3, Fig. 1, has a peripheral recess 13 which at T.D.C. forms at least a radially inner part of an annular combustion chamber, and the ignition means is disposed in the cylinder head at a radially outer position of the annular combustion chamber. The latter may be so arranged as to be eccentric to the cylinder axis 20. Arcuate recesses 16a, 16b may be formed in the cylinder wall to provide a combustion chamber of substantially elliptical form. The piston head may be provided with a central recess 14 which during the compression stroke traps lean mixture which is burned when exposed to the ignited charge in the combustion chamber at approximately 10 to 20 degrees after T.D.C. A radially-outward flow 22 is created towards the end of the compression stroke. The ignition means may comprise two spark-plugs arranged at positions (19a, 19b), Fig. 2 (not shown), which are diametrically opposite one another in an axial plane which is angularly displaced from the plane of Fig. 1, which is a transverse plane of the engine, by 35 to 45 degrees in the opposite direction to the direction of the swirling flow. Thus due to the shape of the elliptical combustion chamber the swirling flow is retarded at the spark-plug positions and thereby results in fuel precipitation and consequent enriching of the mixture thereat.
Patent GB-1055067-A (GB)
Title: Shock-absorbing valve combination
Inventor: WIDRINKA WLOFGANG
IPC: F15B21/00
Filed: 1964-12-17
Abstract: 1,055,067. Dashpots. PKM HYDRAULIK KARL-MARX-STADT VEB. Dec. 17, 1964, No. 51391/64. Heading F2S. [Also in Division F1] A valve member 3 has a piston 5 movable in an oil-filled dashpot chamber 6 containing a compression spring 7, whereby during closing movement of the member towards a seat 12, oil is forced from the chamber 6 through an adjustable throttle 18 and during opening movement is drawn into the chamber 6 through a non-return valve 20.
Patent GB-1473702-A (GB)
Title: Method and apparatus for forwarding filaments
IPC: D04H3/03
Filed: 1975-12-17
Abstract: 1473702 Filament forwarding air slot MONSANTO CO 17 Dec 1975 [18 Dec 1974] 51564/75 Heading D1F A plurality of filaments are forwarded, e.g. from a spinneret to a laydown zone to form a non-woven web, through a rectangular slot 11 having wide walls (16, Fig. 2, not shown) and narrow walls 18 by a primary fluid stream, a secondary fluid stream being fed along the narrow walls of the slot in the direction of the primary stream in order to prevent boundary layer separation along the slot walls and consequent non-uniform filament deposition. Preferably the fluid is air and the filaments nylon 66. The primary stream enters via openings 12. The secondary stream enters via tubes 23 and flows along grooves 22 in the narrow sides 18. Grooves 22 are the same width as the separation of walls (16) and thus act as extensions of the slot 11.
Patent GB-1517599-A (GB)
Title: Recovery of palladium from spent catalyst material
IPC: C22B11/00
Filed: 1976-12-13
Abstract: 1517599 Recovery of palladium from spent catalysts VYSOKA SKOLA CHEMICKOTECHNOLOGICKA 13 Dec 1976 [29 Dec 1975] 51841/76 Heading C1A Palladium values are recovered from spent catalyst material, or from ashes prepared therefrom, by reaction with fluorine or a mixture of fluorine with hydrogen fluoride at a temperature of from 200 to 500C, the palladium fluoride(s) produced is (are) decomposed by hydrochloric acid at a temperature of from 90 to 100C.
Patent GB-1199466-A (GB)
Title: Improvements in or relating to Sprocket Wheels.
IPC: B66B23/02
Filed: 1967-11-15
Abstract: 1,199,466. Escalators. HITACHI Ltd. 15 Nov., 1967 [16 Nov., 1966], No. 51932/67. Heading B8A. [Also in Division F2] The driving sprocket 13 for the steps of an escalator 11 has resilient inserts 23 in at least some of the roller receiving recesses 22. The inserts may be of rubber or the like and may have internal helical springs. The design of the inserts is such that they will compress to the level of the recess 22 under less than the full load of the chain 18 to provide sound deadening.
Patent GB-1129918-A (GB)
Title: Method and apparatus for opening moulds of injection moulding machines
IPC: B29C45/40
Filed: 1966-11-21
Abstract: 1,129,918. Injection moulding machines. CONTINENTAL GUMMI-WERKE A.G. 21 Nov., 1966 [24 Nov., 1965], No. 51971/66. Heading B5A. A method of opening a mould 2 comprising plates 21 . . . 24 and used in the vulcanization of injected rubber in a press 1 includes the step of withdrawing the mould from the press 1 on to a support 3 exteriorly thereof. During this movement, hooks 13 of drawbars 12 engage pins 7 projecting from the upper plate 22, while members 8, 9 on intermediate plates 23, 24 respectively engage hydraulically operated double-armed levers 16. The plates are linked by a common hinge 4 and the movement from the press is stopped by a stop 6 having a projection which " breaks " the plates vertically, the lower thereof being fixed by guides 5. The upper plate is then raised as far as a stop 17 by a cylinder 10, intermediate plates then being subsequently raised in sequence to the upper plate by respective cylinders 14, 15. Mould cavities 2a, 2b are formed in the lower and upper plates, and formed articles are removed, and the moulds cleaned, when the plates are individually separated.
Patent GB-1447042-A (GB)
Title: Adjustable height prefabricated tower
IPC: E04G11/48
Filed: 1972-11-10
Abstract: 1447042 Support tower THOS STOREY (ENGS) Ltd 12 Nov 1973 [10 Nov 1972] 52120/72 Heading E1S A pre-fabricated tower for supporting, e.g., concrete shuttering, is made up from frames 2, 8 which are vertically staggered in adjacent walls, and are interconnected via tongues 6 and slots 12, the tongues being pinned or bolted in position through holes 16 in the walls of the slots. The height of the tower can be adjusted by mounting jacks under brackets 24 and raising the lowermost frames 2 by using alternative holes for the fixing. Screw jacks may be situated at the top of the tower.
Patent GB-1130509-A (GB)
Title: Bowling ball path indicator
IPC: A63D5/04
Filed: 1965-12-15
Abstract: 1,130,509. Bowling alleys. AMERICAN MACHINE & FOUNDRY CO. 15 Dec., 1965 [28 May, 1965], No. 53280/65. Heading A6D. An optimum wall path selection computer to be employed in a bowling-ball path indicating system includes circuits formed from combinations of the logic units AND, OR and NOT and preferably employs transistor and diode elements. Boolean expressions for standing and fallen pin combinations are given and electrical analogues are represented in Figs. 4-9 (not shown). The computer is employed with a plurality of pin spotting machines of the kind having switches associated with pin respotting units to signal the state of the pins. Such pin spotting machines are connected to a stepping relay in the input circuit of the computer and the stepping action is arrested when contact is made with a pin spotting machine ready to have its ball path computed. A further stepping relay signals the condition of the pins on the deck of the machine to the computer which closes a circuit to illuminate the appropriate indicator arrow. The computer is then cleared by the action of a further relay and the stepper relay in the input circuit advances its wiping arms to search for the next pin spotting machine ready to have its ballpath computed.
Patent GB-1525130-A (GB)
Title: Scaffolding supports
IPC: E04G5/02
Filed: 1975-12-31
Abstract: 1525130 Trestles SOMEFRAN SOC D'EXPLOITATION DES BREVETS MEFRAN 31 Dec 1975 [31 Dec 1974] 53378/75 Heading A4H A scaffold support foot 1 comprises two oblique legs 6 joined at the top to a hollow central tube 3 having at its upper end a tubular crown 4 having a plurality of notches 5. A tubular upright 10 of a scaffold element is accommodated in the vertical tube 3 and a side arm 11 of the scaffold element is located in a notch 5 in any of a number of angular positions. A wedge 15 locks the upright 10 in the selected position. The tubular crown may be welded, as in Fig. 2, or rotatably mounted with locking means.
Patent GB-1203229-A (GB)
Title: Improvements in rotary couplings
Inventor: SPENCE IAIN STEWART
IPC: F16D3/52
Filed: 1966-11-29
Abstract: 1,203,229. Flexible couplings. FABRIC BEARINGS Ltd. 7 Sept., 1967 [29 Nov., 1966], No. 53512/66. Heading F2U. A flexible coupling comprises lugs 11, 13 on the driving and driven members 10, 12 and between which strip spring elements 19-22 are mounted, the elements deforming progressively under increasing torque to give a solid drive at high torque loading. As shown, the lugs 13 are formed on disc 14 secured to hub member 12 by shear bolts 16, and the springs are of corrugated form. A cover 30 is bolted to the hub member 12. In a modification, Fig. 5 (not shown), the springs are of circular form and mounted on the lugs.
Patent GB-1173479-A (GB)
Title: Improvements in method for Synthesizing Malononitrile
Filed: 1967-11-24
Abstract: 1,173,479. Production of malononitrile. ARTHUR D. LITTLE Inc. 24 Nov., 1967 [28 Nov., 1966], No. 53679/67. Heading C2C. Malononitrile is obtained by a single, integrated process comprising the steps of (a) first reacting gaseous HCN and chlorine in essentially equal molar ratios over activated charcoal at a temperature between 100‹ and 250‹ C. for a period of 4 to 10 seconds, and (b) reacting the resulting product mixture containing cyanogen chloride and by-product hydrogen chloride with acetonitrile for a period of from 3 to 8 seconds and at a temperature between 600‹ and 750‹ C., said acetonitrile being present in an amount in excess of the stoichiometric quantity required to react with said cyanogen chloride to form malononitrile, and (c) isolating said malononitrile.
Patent GB-1378155-A (GB)
Title: Microfilm viewer
IPC: G03B21/11
Filed: 1971-11-18
Abstract: 1378155 Optical projection apparatus MICRO & CO 18 Nov 1971 [18 Nov 1970 26 Aug 1971] 53685/71 Heading G2J A compact projection viewer includes an elongated casing, see Fig.3, having a projection screen 25 in its upper surface, a platform 44 for receiving a cassette 52 of microfilm so that a lamp in housing 50 may project an image via lens 54 on to a fixed mirror 40, thence on to mirror 76 and then the screen 25. The mirror 76 is supported on a plate 64 which pivots about pin 66 so that it can move from the operating position shown in Fig.3, in which it acts as a support for the viewer, to a retracted position in which the plate 64 is substantially flush with surface 36. As shown the casing may be in two seperable halves and light shields 74, 78, 82 provided. Focusing of lens 54 is achieved by rocking lever 90. Figs.8, 10 show the cassette 52, the subject of Specification 1378156. This has two film spool chambers 52a connected by section 52b providing a film passageway 138 whose cross-section Fig. 10, provides sections 138a, 138c to guide the film by its edges; the section 52b also includes a window 53 for a frame of film to be projected. The film is stored on spools 134 which co-operate with driveshafts 110, 112 when the cassette 52 is placed on the platform 44. As shown in Fig.8 ratchet mechanisms are provided by the internal surface of the spools 134 and ends 124 of shafts 110, 112. The shafts 110, 112 are driven by a manually rotated belt 116 and, although both shafts 110, 112 are simultaneously rotated, the ratchet mechanisms ensure that only the spool 134 acting as film takeup is driven. A second embodiment of the viewer is described. This is substantially similar in its casing construction to that shown in Fig.3, the cassette used is the same shape but the ratchet mechanism is omitted. Further the film advance is motor powered and uses the gear mechanism shown in Fig.20. This mechanism is the subject of Specification 1378157. As shown a reversibly driven worm gear 344 turns gear 346 to drive gear 352. Gear 352 engages gear 356 which is mounted on arm 354 so as to pivot about the shaft of gear 352. Thus depending on the direction of rotation of gear 352, gear 356 is moved to engage and drive either gear 358 or gear 360. The gears 358, 360 respectively engage gears 340, 341 which are associated with respective film reel driving shafts. Thus reversal of the motor drive to worm gear 344 reverses the direction of film movement by automatically selecting the reel which is to act as film take-up. A control circuit is described which permits fast and slow film movement in either direction.
Patent GB-1439476-A (GB)
Title: Heat exchangers
IPC: F28D7/16
Filed: 1973-11-19
Abstract: 1439476 Steam generators; tubular heat exchangers SIEMENS AG 19 Nov 1973 [17 Nov 1972] 53695/73 Headings F4A and F4S A heat exchanger comprises first and second tube bundles 3, 4 connected in parallel between an inlet and an outlet chamber 10, 11 for conveying first fluid, and first and second jackets 1, 2 surrounding the tube bundles for conveying second fluid and forming with the chambers 10, 11 a casing in the shape of a closed loop. The tube bundles 3, 4 are U-shaped and each has a short limb 5 or 7 and a longer limb 6 or 8, the short limb 5 of bundle 3 being preferably twice as long as the short limb 7 of bundle 4. The heat exchanger is particularly a steam generator heated by coolant from a light water nuclear reactor, and secondary water enters at inlet chamber 13 and flows through jacket 2, counter to the flow of primary water in tube bundle 4, to outlet chamber 14 whence it passes to a separator 20 comprising a coarse, centrifugal, separator 21 and a fine separator 22. Water from the separator passes through a pipe 26, which may include a pump, to inlet chamber 12 of the jacket 1, in which it flows counter to the primary water in tube bundle 3, while steam from the separator is fed into the jacket 1 at connection 17 in pressure-resisting elbow 55, and enters the flow of steam generated in the limb 6 through apertures 56 in guide tube 58. The steam is superheated in the limb 5 and withdrawn through chamber 15. The walls 46 of the chambers 12-15 are eccentric of the tube bundles.