baber/WOPTO huggingface dataset:
Patent GB-1318537-A (GB)
Title: Apparatus for aiming a pelagic trawl at a shoal of fish
IPC: G01S15/96
Filed: 1970-09-09
Abstract: 1318537 Nets SIMRAD AS 9 Sept 1970 [15 Sept 1969] 43175/70 Heading A1A [Also in Division H4]  Apparatus for aiming a pelagic trawl at an echo-producing object such as a fish school comprises two sonar transducers mounted, near the trawl mouth, in the horizontal plate through the central axis of the trawl and directed so that their respective sound radiations overlap and have approximately the same intensity in the vertical plane through the central axis, two further transducers mounted near the trawl mouth in said vertical plane and directed so that their radiations overlap and have approximately equal intensities in a common plane which is inclined to said axis and intersects the axis at a predetermined distance from the trawl mouth, and echo indicating means on the trawling vessel having an indicator screen with four separate time base axes for displaying echoes from each of the transducers. Respective distance markers representing said predetermined distance are provided on each time base axis. The occurrence of pairs of approxiately equal strength echo signal indications at the markers indicates that the trawl is aimed at an echo-producing object at the predetermined distance from the trawl mouth.  In the embodiment described the transducers are preferably identical and may be energised sequentially at the same carrier frquency or may be energised simultaneously at different respective carrier frequencies derived from a common trigger pulse. The echo indicator is a cathode ray tube with four deflection-modulated radial time bases arranged as a rectangular cross, the distance markers being provided by a range ring. The tube's luminance peristance is preferably long enough for the displayed echoes of several echo-sounding periods to be visible at the same time.
Patent GB-1400588-A (GB)
Title: Steels
IPC: C22C38/54
Filed: 1972-09-18
Abstract: 1400588 Nickel-chromium stainless steel INTERNATIONAL NICKEL Ltd 18 Sept 1972 [20 Sept 1971 1 Aug 1972] 43205/72 Heading C7A A stainless steel, possessing good casting properties, contains 6-30% nickel, from 14-26% chromium, from 2-5% silicon, from 0.3-1.4% boron, 0-0.15% carbon, 0-20% manganese, 0-3% copper, 0-8% molybdenum, 0-1.4% phosphorus and 0-1% niobium, the balance, apart from impurities and incidental elements being iron, with the proviso that 8(%Ni + %Mn) - 1.5(%Cr + %Mo) + 22(%Si) + 284(%B) + 189(%P) # 360 There may also be present sulphur up to 0.04%, selenium up to .25%, nitrogen up to .25%, titanium up to 0.3% and aluminium up to .3%. The steel may be solution treated in the range 1010‹C-1121‹C.
Patent GB-963145-A (GB)
Title: Improvements in and relating to moderator core structures for nuclear reactors
Inventor: SHILLITTO ARTHUR
IPC: G21C5/16
Filed: 1959-12-21
Abstract: 963,145. Moderator structures. ENGLISH ELECTRIC CO. Ltd. Dec. 9, 1960 [Dec. 21, 1959], No. 43275/59. Heading G6C. The blocks 10 of a moderator core structure are maintained in position by means of interlocking castellations 12 on their end faces, the interengaging faces 13 of the castellations extending either diagonally across the end faces or transversely and at right angles thereto. Any differential growth between the blocks will, provided the growth is uniform for each block, result in a sliding motion between the interengaging faces 13 but will not offset the centre lines of the blocks. In the embodiment illustrated in Fig. 3, one block 10 at each joint is provided with arcuate lips 14 on the end faces of the castellations, which castellations are undercut as shown at 15. By this means, the lift of a block with relative tilting of the two blocks of a joint in a plane bisecting the lips and the resistance of a joint to tilting in the planes of the undercut faces are reduced. In any of the embodiments described, the interengaging faces 13 may be inclined to the vertical so as to produce a wedge fit between the interlocking castellations. The blocks 10 are not necessarily of square cross-section and may, for example, be of hexagonal cross-section. The Provisional Specification relates to graphite blocks.
Patent GB-1165892-A (GB)
Title: Improvements in Static Switching Controllers for Effecting Connection to a D.C. Electric Motor and Disconnection from the Motor of a Battery
Inventor: BROWN CHRISTOPHER ROBIN
IPC: H02P7/29
Filed: 1965-06-28
Abstract: 1,165,892. Control of D.C. motors. RANSOMES SIMS & JEFFERIES Ltd. 28 Sept., 1966 [28 June, 1965], No. 43288/66. Divided out of 1,165,891. Heading H2J. The subject-matter is identical to that of the parent Specification but the claims are directed to the arrangement for limiting the mean value of the motor current.
Patent GB-1267894-A (GB)
Title: Gated video inverter
IPC: H04N5/14
Filed: 1970-09-10
Abstract: 1,267,894. Television. HAZELTINE CORP. 10 Sept., 1970 [25 Sept., 1969], No. 43331/70. Heading H4F. In an apparatus for inverting the video component of a video signal without inverting the blanking interval, the video signal is supplied to an amplifier 7, at least a portion of each blanking component having been clamped at a reference level through gated clamp circuit 4. A normally conducting transistor 9 is periodically cut off by a blanking gate signal on lead 10 to provide pulses, Fig. 2c, in each blanking interval which are adjusted by resistor 18 preferably to equal the maximum possible amplitude of the video signal, Fig. 2a, at the output of amplifier 7. These pulses and the output of amplifier 7 are combined at 19 to produce a signal, Fig. 2d, which is inverted in amplifier 23 to produce the required signal, Fig. 2e. By opening switch 16 the signal appears in its original uninverted form at the emitter of transistor 24.
Patent GB-1361811-A (GB)
Title: Catalysts and the use thereof
IPC: B01J27/22
Filed: 1971-09-20
Abstract: 1361811 Hydrogenation catalysts TEXACO DEVELOPMENT CORP 20 Sept 1971 [6 Nov 1970 (2)] 43709/71 Heading B1E [Also in Division C2] Catalyst comprising metal selected from metals of Groups VIIB and VIII supported on activated carbon is stabilized by heating for at least one hour, for example for 2 to 8 hours, at a temperature of from 500 to 1300‹F under a pressure of from 300 to 700 psig in a non- oxidizing gas selected from hydrogen, nitrogen. helium, neon, argon, methane, ethane, propane and hydrogen/hydrocarbon mixtures, for example a mixture available as off-gas from a catalytic reforming unit. The Group VIIB/VIII metal, which may constitute from 0.1 to 10. weight per cent of the catalyst, may. be rhenium, ruthenium, rhodium, palladium, platinum or a combination of metals, for example rhenium-platinum. The carbon may have an ash content of below 5.0 weight per cent and a surface area of from 800 to 1400 m<SP>2</SP>/g. Examples relate to the heat-treatment of palladium-carbon catalyst either in hydrogen or in nitrogen or initially in nitrogen and thereafter in hydrogen, to the regeneration-by heating in hydrogen of deactivated palladiumcarbon catalyst which had been subjected to heat-treatment in nitrogen prior to use and deactivation, and to heat-treatment in hydrogen of platinum-carbon catalyst and of rheniumcarbon catalyst; details relating to the initial preparation of such palladium-carbon and rhenium-carbon catalysts are given in the Specification.
Patent GB-982782-A (GB)
Title: Improvements in or relating to frictional rotation transmitting devices
Inventor: JESTY JAMES
IPC: B60T8/74
Filed: 1962-11-21
Abstract: 982,782. Slip couplings; anti-skid brakes. AUTOMOTIVE PRODUCTS CO. Ltd. Oct. 31, 1963 [Nov. 21, 1962], No. 44053/62. Headings F2F and F2U. A friction slip-coupling 62 between a torquesensing flywheel 58 and sleeve 59 of an antiskid device for a motion-vehicle liquid pressure braking system comprises a pair of annular plates 69, 71 fast at one end of the sleeve 59 and carrying a ring of balls 72 engaging cam ramps 74 of a disc 65, or, alternatively (not shown), a screw-threaded engagement between the sleeve 59 and disc 65, which disc 65 frictionally seats in a recess 66 of the flywheel 58, the disc 65 and plate 69 being connected by a torsion spring 75 tending to rotate the disc 65 in the direction to bias the camming balls 72 to clamp the flywheel 58 frictionally between the disc 65 and a flange 67 on the sleeve 59, the torque capacity, due to the camming effect, being greater in one direction than in the other. The anti-skid sensing device is beltdriven from the vehicle propeller shaft and controls a valve unit 15 which is connected in the liquid line between the rear wheel brake cylinders and a master cylinder and is normally maintained open by a servomotor unit permanently connected at 48 with a vacuum reservoir and having a bleed 51 to maintain an equal vacuum in chambers 38, 39 on either side of a diaphragm 37 so that a spring 46 acting through a cap 45 and plunger 34 holds a ball valve 28 open. The upper chamber 38 is further connected through a conduit 49 to a valve 22 of the anti-skid sensing device. Normally, the flywheel 58 is driven by the slip-coupling 62 in the high torque direction through the sleeve 59 and the balls 72 mounted in cam recesses of a plate 63 connected by a peg 79 to the driven pulley 56, but if, during braking, excessive rear wheel deceleration takes place, the flywheel 58 overruns and turns the sleeve 59 relative to the plate 63 which, through the balls 72, lifts a valve-disc 52, venting the chamber 38 to retract the plunger 34, thereby closing the ball valve 28 to cut-off the master cylinder and increase the volume of the brake supply line to reduce brake pressure therein.
Patent GB-1488508-A (GB)
Title: Dredging
IPC: E02F7/04
Filed: 1974-10-11
Abstract: 1488508 Suction dredgers BOS KALIS WESTMINSTER GROUP NV 11 Oct 1974 [15 Oct 1973] 44235/74 Heading E1F A method of dredging comprises transferring material suspended in a transport medium through a suction head and a suction line to a hopper for collection of material and recycling sufficient transport medium from the hopper for discharge adjacent the suction head such that material can be suspended in and transferred to the hopper by the recycled transport medium alone, the recycled transport medium being substantially shielded from ambient liquid in the region of the suction head during passage from discharge adjacent the suction head to the suction head such that the tranport medium entering the suction head essentially consists of recycled transport medium. The material may be soil recovered from a salt medium and the transport medium may be fresh water to which can be added settling promotors.
Patent GB-1024322-A (GB)
Title: Shot-blast head
Inventor: NAISH WILLIAM JENKINS
IPC: B24C5/02
Filed: 1962-12-11
Abstract: 1,024,322. Shot blasting. RHEEM LYSAGHT Ltd. Dec. 11, 1962 [Dec. 11, 1961], No. 44313/61. Heading B3D. A shot-blast head comprises two chambers one of which is adapted for communication with a source of air under pressure and the other is adapted to communicate with a reservoir of shot, a plurality of nozzles being mounted in the head each comprising an elongated body having a mixing chamber, an axial air inlet in communication with one of the chambers, an axial outlet for the mixed air and shot and an inlet for the shot in communication with the other of the chambers, said shot inlet being inclined to the axis of the nozzle. A head suitable for shot-blasting a cylindrical surface comprises concentric chambers 1, 2, the chamber 1 being in direct communication with a source of high pressure air and the chamber 2 forming the lower end of a reservoir of shot. Two sets of nozzles are arranged radially of the axis of the chambers, each set having fifteen nozzles with their axes lying in a horizontal plane. The nozzles of one set are staggered relatively to the nozzles of the other set. The front portion 3 of each nozzle is mounted in the outer wall 4 of chamber 2 and the rear is mounted in the wall 5 common to both chambers. An inlet portion 6 has axial bore 7 providing air inlet passage, and an internal annular groove 8 forms an air jet 9 projecting into a mixing chamber 10. A shot inlet passage 11 extends through the wall of the nozzle from chamber 2 to the groove 8. The inlet 11 is at an angle of 15 degrees to the inlet 7. The front portion of the nozzle is bored at 12, 13 providing an outlet for the mixed air and shot.
Patent GB-1080454-A (GB)
Title: Method of preparation of barium-137
Inventor: BONNIN ANDRE MARIE ALAIN
IPC: C01C3/12
Filed: 1964-11-02
Abstract: 1,080,454. Separation of radio-isotopes. SAINT - GOBAIN TECHNIQUES NOUVELLES. Nov. 2, 1964 [Nov. 8, 1963; Oct. 15, 1964], No. 44606/64. Heading G6R. Barium 137 is prepared by fixing caesium 137 on a solid ferrocyanide of a transition element of atomic number 21-29 and eluting with an aqueous medium. The ferrocyanide may be prepared by mixing a solution of an alkali metal ferrocyanide with a solution of a salt of the transition element, e.g. copper, flocculating the colloidal solution formed by adding lauryl - benzyl - dimethyl - ammonium chloride, dissolving the precipitate by extraction with trichloroethylene or methyl isobutyl ketone, and evaporating the solvent. The ferrocyanide is incorporated in a collodion film by mixing the trichloroethylene solution with a solution of collodion in ethyl acetate and drying. Alternatively the ferrocyanide is supported on an anion exchange resin by stirring a colloidal solution of the ferrocyanide with the resin or by treating the resin with a potassium ferrocyanide solution and then with a solution of a copper or nickel salt. Caesium 137 is fixed on to the supported or unsupported ferrocyanaide by contact with a solution containing the caesium 137. The active resin is placed in a column and may be eluted at 10- minute intervals to obtain a solution of the short-lived radioisotope Ba 137 which is useful for leak detection, study and measurement of fluid flow, and in medicine to measure the rate of circulation of the blood. A trap containing inactive ferrocyanide may be arranged at the bottom of the column to remove Cs 137. Eluting agents referred to are water and aqueous solutions of barium, calcium, and sodium nitrates, barium and sodium chlorides, calcium gluconate, and calcium levulinate.
Patent GB-1521137-A (GB)
Title: Ceramic dielectric composition
IPC: H01G4/12
Filed: 1975-10-29
Abstract: 1521137 Ceramic dielectric compositions TDK ELECTRONICS CO Ltd 29 Oct 1975 [7 Nov 1974 26 Nov 1974 4 Feb 1975 5 Sept 1975(2) 16 Sept 1975] 44673/75 Heading C1J [Also in Division H1] A first sintered ceramic dielectric composition consists essentially of a substituted bismuth titanate expressed by the formula: Bi a(4-x) Me x Ti b(3-y) R y O 12  where Me is at least one of Sr, Ba and Pb; R is at least one of Ta, Nb and Sb; a and b are both in the range 0À9 to 1À1 and both x and y are in the range of 0À4 to 2À0, the ratio x/y being 0À9 to 1À1. In a modification, the ceramic dielectric composition contains no more than 0À7 wt. per cent of one or more of MnO 2 , Fe 2 O 3 , CoO, NiO, and Cr 2 O 3 . A second sintered ceramic dielectric composition comprises, for every mole of the substituted bismuth titanate, 0À1 to 12À0 moles lead titanate. The first and second dielectric composition may, in further modifications, contain not more than 2À0 wt. per cent of WO 3  and MO 3 . The dielectric composition may be used for making a ceramic laminar capacitor.
Patent GB-1203880-A (GB)
Title: Articulated vehicle anti-snaking/anti-jack-knifing arrangements
IPC: B62D53/08
Filed: 1968-09-24
Abstract: 1,203,880. Anti-snaking/anti-jackknifing devices. MATHER CO. 24 Sept., 1968 [2 Oct.; 1967], No. 45211/68. Heading B7T. [Also in Division F2] An anti-snaking/anti-jackknifing arrangement for use with an articulated vehicle comprises a king pin 110 adapted to be engaged in a fifth wheel plate 75 with an arm 120 attached to the pin occupying the slot 77 such that the pin turns with the plate, wherein at the opposite end of the pin a vane 140 bolted thereto is in a fluid-tight fit with a housing 150 defining a sector-shaped chamber, whereby on relative rotation between said pin and the housing fluid within the chamber passes from one side of the vane to the other via a passageway 191, controlled by a needle valve 195, thereby damping said rotation. The chamber is defined by a fixed vane 180 bolted to the housing and through which the passageway passes, the valve 195 being replaceable to vary the size of the orifice. A vertical extension of arm 120 allows the arrangement to operate during vertical movement between the articulated parts of the vehicle. The arm 120 may be longitudinally slotted and the slot filled with a rubber insert. Around the contacting edges of vane 140 a spring-loaded gasket may be provided. In a modification, Figs. 11 and 12 (not shown), a reservoir in the top of the king pin replenishes via passageways in the fixed vane any fluid lost through leakage. Alternatively access to the chamber may be had via plugged holes in the housing top. In the embodiment of Figs. 15 and 16 (not shown), the passageway between the opposite sides of the vane is throttled by a valve in contact with a cam surface on the king pin, thus varying the throttling according to the amount of rotation. In the embodiment of Fig. 18 the passage 582 through the fixed vane communicates with passages 592 in the housing top, these latter passages opening into the chamber 570 via orifices 591 such that during rotation of the king pin these orifices are gated to vary the-fluid flow and hence the damping. A cam-operated valve similar to that described above may be used with the embodiment of Fig. 18. In Figs. 23, 24 pressure fluid is passed via a shuttle valve 730 to a device 720 which. actuates a warning in the event of a high-pressure indicative of jackknifing. Also this fluid may operate a drumbraking device comprising double-acting piston and cylinder 732, brake shoes 736 and drum 738. The shoes may operate on the inner or outer face of the drum. Alternatively the brake may be of the disc-type. In Fig. 1 the arrangement is used with a ball-and-socket car/trailer hitch with the pivot-pin 52 mounting the ball having an arm 55 which engages the tow bar 42 thereby rotating the pin with respect to housing 51.
Patent GB-1196003-A (GB)
Title: Improvements in or relating to Corpuscular Beam Apparatus.
IPC: H01J37/18
Filed: 1967-10-05
Abstract: 1,196,003. Discharge apparatus. MAXPLANCK - GESELLSCHAFT ZUR FORDERUNG DER WISSENSCHAFTEN E.V. 5 Oct., 1967 [24 Feb., 1967], No. 45409/67. Heading H1D. An airlock for inserting articles such as specimens, diaphragms or lens polepieces into a corpusular beam apparatus such as an electron microscope, comprises a rod-like holder 3 for the article 5, and an airlock door in the form of a ball 8 encircled by an annular gasket 9 in a mounting which allows the ball to rotate about an axis 10 normal to. that of the airlock, the ball having a recess in which an operating member engages to rotate the ball and through which the holder passes to enter the vacuum chamber. At the end of the holder 3 a hollow member 6 surrounding the article 5 has a spherical end face 7 which is adapted to engage the ball 8 and rotate it thereby allowing the hollow member 6 to pass into the vacuum chamber (Fig. 3, not shown). When the holder is withdrawn an abutment surface 31 on the hollow member 6 engages a pin 25 on the ball to rotate it back into the position when it bears on the gasket 9 to seal the vacuum chamber. The airlock is operated by successive translations and rotations of the sleeve system 13 with associated guide systems 15, 16 and 39 and ball stops (20, 21, Fig. 1, not shown). These movements also operate a valve 41 so that the airlock is initially at atmospheric pressure, is then evacuated through conduit 45, and is finally sealed off, this sequence being reversed when the holder 3 is withdrawn.
Patent GB-1448116-A (GB)
Title: Coating of surfaces of workpieces
IPC: C23C4/134
Filed: 1973-10-01
Abstract: 1448116 Coating by spraying SIEMENS AG 1 Oct 1973 [7 Nov 1972] 45710/73 Heading C7F In the coating of a substrate 1 by a jet 3 from a spray-gun 4, decomposition products are removed from the jet by a transverse jet of gas from a nozzle 5. The products may be collected on a diaphragm 10. In a modification, Fig. 3 (not shown), the diaphragm may have a hole therein and act as a mask. The substrate may be cooled by cooling gas 9. Either the substrate or the spray-gun may be moved relatively to each other. In a modification, Fig. 4 (not shown), for a curved substrate, the nozzle 5 may be rotated.
Patent GB-1365142-A (GB)
Title: Method of and a machine tool installation for handling and ma chining workpieces
IPC: B23Q15/00
Filed: 1971-10-01
Abstract: 1365142 Machine tool control WERKZEUGMASCHINENKOMBINAT FRITZ HECKERT KARL-MARX-STADT VEB 1 Oct 1971 45745/71 Heading B3B A method of handling and machining workpieces, wherein the workpieces which are already machined or otherwise prepared at a first clamping surface thereof are measured three times during the said handling, or four times if ultra-fine finishing is to be carried out as part of the said machining, the dimensions being related to the said first workpiece clamping surface, the measuring being done (a) before commencement of machining, when the oversize of the workpiece is noted; (b) after coarse machining when the over-size for fine machining is noted; (c) after fine machining when the starting dimension for ultra-fine machining is noted, and also to provide a final measurement of the completely-machined workpieces if no ultra-fine machining is envisaged; and (d) after ultra-fine machining of the workpieces, the workpieces being unclamped and re-clamped between the coarse and fine machining processes, and wherein the workpieces are cleared of swarf and cleaned and cooled to a reference temperature prior to each measurement. The apparatus for carrying out the method includes a conveyer 1, N-C machine tools 2-8 arranged in a coarse machining station 15, a fine machining station 16 and an ultra-fine machining station 17, washing and cooling station 13, 13<SP>1</SP>, measuring stations 10-12, a storage zone 14, and a controlling computer 9. The conveyer 1 includes air jets to provide air cushion support for workpiece carriers which are driven by linear motors.
Patent GB-1482458-A (GB)
Title: Ink removal from waste inked paper
IPC: D21C5/02
Filed: 1974-10-25
Abstract: 1482458 Deinking paper NATIONAL RESEARCH COUNCIL OF CANADA and ONTARIO PAPER CO Ltd 25 Oct 1974 [25 Oct 1973] 46272/74 Headings B2H and B2P [Also in Division D2] A method of deinking waste inked paper comprises (a) freeing the ink particles adhering to the paper fibres; (b) agitating the resulting mixture with solid particles at least 0.03 mm in diameter and, having hydrophobic surfaces with a strong affinity for the ink particles; (c) separating the resulting inkcoated particles from the paper fibres otherwise than by froth flotation and (d) recovering the cleaned paper stock. The ink particles may be freed from the paper fibres by treating an aqueous pulp of the waste paper with an appropriate surfactant e.g. a soap and a caustic alkali. The alkali may be added as peroxide. Sodium silicate with or without soap or alkali may also be used. The waste paper may be wax, polyolefin or other vinyl polymer, rubber, pitch, gum, sulphur or modified silica particles. The surface of the particles may be coated with a hydrophobic adhesive substance e.g. sticky oils, waxes, gums, or the solids may be plasticised to increase adhesion. A magnetic component may be incorporated in the particles to permit magnetic separation of the ink-loaded particles from the paper fibres. The particles may be separated by other means e.g. by filtration, screening, centrifuging or settling. The ink may be removed from the particles, and the latter reused.