baber/WOPTO huggingface dataset:
Patent GB-1235035-A (GB)
Title: Gas turbine engines
IPC: F01D25/18
Filed: 1969-08-21
Abstract: 1,235,035. Concentric-tube heat exchangers. GENERAL MOTORS CORP. 21 Aug., 1969 [30 Aug., 1968], No. 41674/69. Heading F4S. [Also in Divisions F1 and F2] A concentric-tube heat exchanger for a gas turbine bearing lubrication system (see Divisions F1 and F2) has an axial oil flow conduit 79, an annular oil return conduit and two annular cooling-air ducts. The annular oil return conduit is provided with helical fins 107 which cause the oil to follow a helical path, and is also provided with fins 105, 106 extending into the air duets. In use, the oil flows to the bearing via the conduit 79 and returns from the bearing via the annular space between conduits 102, 103; and cooling air flows between the conduits 79 and 103 and also through an annular passage 122 between conduit 102 and an outer jacket 78. The conduit 102 has externally a six-start helical fin structure, and internally, longitudinal fins 106. The conduit 102 has external longitudinal fins 105.
Patent GB-1526129-A (GB)
Title: Solid-liquid separation method for organic waste sludge
IPC: C02F1/52
Filed: 1976-10-08
Abstract: 1526129 Dewatering sludge TOKAI DENKA KOGYO KK 8 Oct 1976 [9 Oct 1975] 41960/76 Heading C1C Organic waste aqueous sludge is dewatered by adding thereto 0À5 to 30% by weight of hydrogen peroxide and 0À1 to 10% by weight of a metal ion with a tri or higher valent positive charge, based on the solid content of the sludge, while maintaining the pH at no more than 9 by the addition of acid or alkali to form stable organic flocs and subsequently conducting solid-liquid separation by settling, suction or centrifugal separation. Specified metal ions are Fe<SP>2+</SP>, Al<SP>3+</SP> ,  Cr<SP>3+</SP>, Cr<SP>6+</SP>, Ti<SP>4+</SP> V<SP>3+</SP> ,  V<SP>4+</SP> and V<SP>5+</SP> and specified acids and alkalis are hydrochloric, sulphuric and phosphoric acids, sodium hydroxide, sodium carbonate and calcium carbonate.
Patent GB-950369-A (GB)
Title: Cold cathode tube pulse generator circuit
Inventor: RICHARDSON JOHN BERNARD
IPC: H03K3/37
Filed: 1961-11-24
Abstract: 950,369. Electric selective signalling. PYE Ltd. Nov. 6,1962 [Nov. 24, 1961], No. 42129/61. Heading G4H. [Also in Division H3] A circuit for generating trains of pulses comprises a self-oscillating pulse generator using a cold-cathode gas filled tube V1, the oscillations being inhibited whenever a second cold-cathode tube V2 is made conductive. The output may be inhibited by feeding a D. C. voltage or positivegoing pulses to the trigger of V2 so that the fall in anode voltage, when passed via diode D2 prevents capacitor C1 charging sufficiently to strike V1. The circuit may be used as a clock pulse generator in a telemetry station, the output of clock pulses being inhibited whenever pulses are received at P1.
Patent GB-1088530-A (GB)
Title: Process for the oxidation of aldehydes
IPC: H03D3/04
Filed: 1965-10-05
Abstract: Water-soluble unsaturated aliphatic aldehydes are oxidized to alkali metal salts of the corresponding acid by cupric oxide or hydroxide in an aqueous alkaline medium in the presence of a noble metal, or oxide or hydroxide thereof. Osmium, iridium, ruthenium, rhodium, palladium, silver, gold and mercury are specified as noble metals.  The alkali salt is the product in the reaction medium and may be acidified to yield the acid product.  Acrylic and methacrylic salts and acids are prepared in examples.
Patent GB-865204-A (GB)
Title: Vehicles a device for guarding against the unauthorised use of motor
IPC: B60R25/00
Filed: 1959-12-12
Abstract: 865,204. Locking vehicles. NEAL, P. S Jan. 29, 1960 [Dec. 12, 1959], No. 42319/59. Class 79(3). A device for preventing unauthorised use of vehicles comprises a tube a having slots b and c and a clasp e pivoted at i which may be locked by bringing holes g and h into register and passing a padlock therethrough. The device, in use, is passed over a brake handle k, the gear lever being inserted into the slots b and retained by the clasp e and locked by a padlock.
Patent GB-952723-A (GB)
Title: Improvements in or relating to flaying devices
IPC: A22B5/16
Filed: 1962-11-09
Abstract: 952,723. Flaying apparatus. R. SCHMID, and W. WEZEL, [trading as SCHMID & WEZEL]. Nov. 9, 1962 [Feb. 22, 1962], No. 42344/62. Heading B4B. In flaying apparatus comprising two parting discs 12, 13 driven by a compressed air motor 3 and gearing including bevel gears 7, 8, eccentric shaft 9 and drive levers 10, 11, a partition 29 is provided to seal the discs from the gearing. The partition has a base 32, a lateral wall 33 and an end wall 34. Pins 17 on the levers 10, 11 engage recesses 18 in the discs to drive the discs. Springs 37 press the levers 10, 11 against the partition for sealing purposes. Liquid foreign substances are collected in a groove 39 machined in the side of the partition facing the discs and are conducted away through outlets 40. The discs are pressed into contact with each other by a corrugated spring 27 located in a groove 26 in a covering part 23. The part 23 may be replaced by a screw having a flat head of large diameter.
Patent GB-1393296-A (GB)
Title: Correcrion material
IPC: B41J29/367
Filed: 1972-09-14
Abstract: 1393296 Correction material V BAROUH and R GLENN 14 Sept 1972 42620/72 Heading D2B  A correction material comprises a light transmitting sheet having discrete spaced opaque coatings thereon, each of the coatings being transferable at least in part upon application of pressure to a receiving sheet e.g. typewritten sheet to mask errors thereon, and weakening means, e.g. score lines, perforations, located in the sheet between the coatings to facilitate separation thereof. The base sheet may be a lightweight paper, glassine, onion skin paper, or a translucent or transparent plastics film. The base sheet may be coated with a suitable adhesive to secure the coatings thereon, and the coatings may be coated with an adhesive pressure-release coating to ensure bonding of the coating to the receiving sheet when transferred thereto. A protective coating may be applied on top of the above coatings.
Patent GB-1470880-A (GB)
Title: Method and apparatus for inserting tubular structural members in a soil formation
IPC: E02D7/26
Filed: 1974-10-04
Abstract: 1470880 Boring earth &c G H O WIBOM 4 Oct 1974 [19 Oct 1973] 43162/74 Heading E1F A tubular structural member I having a vertical cutting edge 3 is sunk into the ground by subjecting the member 1 to a combined axial and rotary movement, the zone ahead of the cutting edge 3 being drilled if rock is encountered so that the cutting edge is driven into the drilled zone. As described the member 1 has a single cutting edge 3 and a helical lower edge 4 and is subjected to rotary movement by clamp 18 and rams 16, 17 and to axial movement by rams 20. The formation 2 ahead of the cutting edge 3 is drilled (as shown in Fig. 3) by a drill bit 7 connected by a drill rod 6 to a drilling machine 9 vertically movable on a column 10 fixed to the member 1. The drill rod 6 passes through a tubular passage in the member 1 and its lower end passes through a guide 5. The drill may be a percussion rock drill and the rod 6 and bit 7 may be provided with passages 11 for flushing liquid. In a modification (Fig. 9) the column 10 supporting the drilling machine 9 is rotatably mounted on the member 1 and is secured to a telescopic arm 20, 21 which prevents the column 10 from rotating as the member 1 is rotated, thus preventing flushing hoses 24 from becoming coiled around the column 10. Alternatively the column 10 can be kept in a fixed orientation by rotating it by a hydraulic motor (not shown) as the member 1 is rotated. The member I may be provided with a plurality of cutting edges 3 and associated drills in which case the rotary motion is an oscillating motion. For Figures see next page
Patent GB-1403299-A (GB)
Title: Oscillatory armature piston pumps
IPC: H02K33/06
Filed: 1973-09-14
Abstract: 1403299 Reciprocating pumps LANDIS & GYR AG 14 Sept 1973 [22 Sept 1972] 43289/73 Heading F1A [Also in Division H2] An electromagnetically-actuated pump comprises a hollow piston 9 supported within an armature 12 by projections 11, a permanent ring magnet 17 surrounding the armature, and polepieces 23, 24 supporting the piston ends via bearing bushes 7, 8 and surrounded by one or, as shown, two coils 21, 22 supplied with alternating current to cause reciprocation of the pistonarmature assembly, valves 33, 34 controlling liquid flow through the pump. Piston outlet end 13 is of smaller cross-sectional area than piston inlet end 14 to make the pump double-acting. Springs 15, 16 bias the piston towards the central position shown. To linearize the magnetic forcetravel characteristic, Fig. 3 (not shown), the ends of the armature or of the polepieces are recessed or, alternatively, the ends of the polepieces are formed with pointed notches, Fig. 2 (not shown). Housing 1 and end cover 2 are of magnetically conducting material. The coils 21, 22 may be connected in series or parallel to provide for switching the operating voltage of the pump, e.g. from 220V to 110V.
Patent GB-1443192-A (GB)
Title: Removal of phosphate from waste water
IPC: C02F1/52
Filed: 1973-09-14
Abstract: 1443192 Removing phosphate from waste water ALLIED COLLOIDS Ltd 9 Sept 1974 [14 Sept 1973] 43361/73 Heading C1C A process for removing phosphate from waste water by first adding an inorganic coagulant then adding a water-soluble salt or quaternary ammonium salt of a copolymer which contains (a) units of aminoalkyl esters of acrylic or methacrylic acid in which the amino group may be substituted by one or two alkyl groups or by substituents which together with the nitrogen atom form a heterocyclic ring and (b) 80-97 mol per cent acrylamide units based on (a) plus (b) after which the solids are separated from the liquid. Preferred inorganic coagulants contain aluminium, ferrous, ferric or calcium ions. The copolymer preferably contains a quaternary ammonium salt of dimethylaminoethyl- or diethylaminoethyl-acrylic acid units. The copolymer is preferably added from 15 seconds to 4 mins after the inorganic coagulant. The process may be applied to chemical effluent but preferably to raw sewage or the effluent from a primary or secondary sedimentation stage.
Patent GB-1389113-A (GB)
Title: Optical focussing system
IPC: H04N7/14
Filed: 1972-09-21
Abstract: 1389113 Television SOC ITALIANA TELECOMUNICAZIONI SIEMENS SpA 21 Sept 1972 [17 Jan 1972] 43814/72 Heading H4F An optical system for a video telephone terminal comprises a first lens for focusing images on to the photo-sensitive surface of a television camera; an adjustable iris fixed relative to the first lens and controlled by a light-sensitive device via an electromechanical transducer; a carrier mounted in front of said first lens holding a prism and at least one further lens and being movable in a plane transverse to the first lens axis to bring either the prism or the further lens into register with the first lens. The vidicon camera 7 has a light-sensitive surface PF on to which lens system 6 focuses images. An adjustable aperture iris 8 is controlled by a light-sensitive source connected to a galvanometer which adjusts the iris 8 to control exposure. The terminal housing VID has two apertures 15, 16 and a document support P. If a document G is to be viewed, carrier 1 is moved in slides 2 until prism 3 lies on the lens 6 axis. In this position the carrier actuates a switch which operates a lamp to illuminate the document (Fig. 2, not shown). The prism is roofshaped (see Figs. 1, 2, not shown), and acts as a form of corner reflector. The image presented to the lens undergoes a double lateral inversion and thus appears correct. By moving carrier 1, two further lenses may selectively be aligned with the fixed lens 6 in order to focus on fields at ranges L or L<SP>1</SP>. The use of the prism enables the same scanning pattern to be used for the camera tube whichever scene is being viewed.
Patent GB-1521299-A (GB)
Title: Cathode ray tube assemblies
IPC: H01J29/70
Filed: 1975-10-24
Abstract: 1521299 Cathode ray tubes FERRANTI Ltd 20 Oct 1976 [24 Oct 1975] 43836/75 Heading H1D A cathode ray tube is provided with permanent magnets for correcting pin-cushion and barrel distortion of displays on the screen, at least one magnet 11 being rotatably mounted on a ferromagnetic U-shaped support and shunt 13 secured adjacent the tube, with means for clamping the magnet in an adjusted rotational position, and with an adjustable width air gap in the magnetic circuit including the shunt, such rotation and adjustment causing variation of the magnetic field intensity on the electron beam. As shown, the magnet 11 is cylindrical and is held by a rotatable holder 12 so as to be parallel to but spaced from the axis of rotation; the shaft 14 of the holder carries a clamping knob 16 screw-threadedly engaged thereon. Alternative clamping means may comprise a set screw in a bush receiving the rotatable shaft, or a resilient lug engaging the rotatable holder. The air gap may be adjusted by bending an arm of the support 13. The magnet assemblies 10 may be mounted, preferably in diametrically opposed pairs, on the deflection coil yoke or on a frame around the screen of the tube (see Fig. 2, not shown).
Patent GB-1144760-A (GB)
Title: Collapsing chairs
IPC: A47C4/50
Filed: 1967-09-28
Abstract: 1,144,760. Seats. C. A. JEFFERY. 5 Aug., 1968 [28 Sept., 1967], No. 44101/67. Heading A4J. In an X-frame folding deck chair of tubular metal construction, a U-shaped frame C and a crossing rectangular frame A are indirectly linked by means of tie-bars, at F, and by a further U-shaped frame B, forming arm-rests. The forward tilting of the chair is terminated by frame C engaging stops H. On folding the chair, the tie-bars have an over-centre spring action which locks the frames in the collapsed condition.
Patent GB-1306868-A (GB)
Title: Fatty ethers
IPC: C07C43/00
Filed: 1970-09-16
Abstract: 1306868 Fatty polyethers ATLAS CHEMICAL INDUSTRIES Inc 16 Sept 1970 [17 Sept 1969 (2)] 44204/70 Heading C2C [Also in Divisions C3 and C5] The invention comprises compounds of the formula [R-X-R 2 -O]y-R 3  (1) where R is alkyl, alkenyl, alkaryl or alkenaryl; y is 1, 2, 3 or 4; X is -S-, -O- or -CH 2 -; R 2  is - CH 2 H(CH 2 OH)- or -CH 2 CH( OH )CH 2 - the radical R-X-R 2  containing a saturated or unsaturated aliphatic hydrocarbon chain, of at least 8 carbon atoms, and R 3  is the radical which remains when y hydroxyl groups are removed from a polyhydric alcohol anhydride which contains at least one hydroxyl group and at least 4 carbon atoms or a polyalkyleneoxy derivative thereof, and compositions comprising at least 10% of a compound of the Formula (1) above and a compound of the formula where R 1  is the radical which remains when y hydroxyl groups are removed from a polyhydric alcohol containing at least 3 carbon atoms and 3 hydroxyl groups, the compositions not containing more than 10 wt. per cent of ethers derived from polyhydric alcohols of 3 carbon atoms, and their preparation by reacting a compound R-X-R 4 , where R 4  is an oxiranylmethyl radical with a polyhydric alcohol anhydride or an oxyalkylene derivative thereof and a polyhydric alcohol, the reaction being carried out in the presence of an epoxide addition catalyst, in such a manner as to provide 1-6 mols. epoxide per mol. polyhydric alcohol anhydride and polyhydric alcohol. The polyols from which R 3  is derived are preferably APolyols made by hydrogenolysing sugars and distilling the reduced product. The polyols are dehydrated under acid or basic conditions to give the polyol anhydrides. The epoxides R-X-R 4  may be made by reacting an alcohol or thiol R-XH with epiehlorohydrin, where X is -O- or -S-.
Patent GB-1450253-A (GB)
Title: Aircraft undercarriages
IPC: B64C25/12
Filed: 1974-10-14
Abstract: 1450253 Rotatable undercarriages MESSIER-HISPANO 14 Oct 1974 [12 Oct 1973] 44420/74 Heading B7G  An aircraft undercarriage having a long damping stroke has a pivoted lever 12 which engages rollers 18 mounted on the upper end of a shock-absorber rod 4 to withdraw the lower portion of the rod into its shock-absorbing cylinder 5, and therefore shorten the undercarriage, as it is retracted. The lever is bifurcated to provide two roller-engaging surfaces, and the rollers are mounted on a stop 20 which limits downward extension of the shockabsorber rod. Retraction is effected by a jack 11 and the undercarriage is braced in the down position by a stay 10.
Patent GB-1283732-A (GB)
Title: Variable-speed changer
IPC: F16H19/02
Filed: 1969-08-01
Abstract: 1283732 Variable-speed gearing SPYPO DYNAMICS CORP 1 Aug 1969 [2 Aug 1968 (2) 18 July 1969] 44460/71 Divided out of 1283731 Heading F2D A variable-speed gear comprises a sungear 28 secured to an input shaft 15, a tubular auxiliary shaft 19 mounted for rotation on the input shaft 19 at one side of the sun gear 28, means for driving the shaft 19 at a predetermined adjustable speed, planet gears 30 carried by the shaft 19 and meshing the sun gear 28 and a ring gear 18 carried by an output shaft 17 rotatably mounted on the input shaft 15. The shaft 19 is driven by a motor 34, whose speed may be adjusted by a rheostat 35, through gearing comprising a ball gear 20 and face gear 32 as described in Specification 1,283731. In a modification, shown in Fig. 13, speed change is effected by friction gearing comprising a friction wheel- 345 slidably keyed to a driving shaft 15<SP>1</SP> an engaging a surface plate 48 carried by a shaft 49 which is connected by gearing 52, 54 to a spiral grooved face gear 32<SP>1</SP>. Speed variation is effected by rotation of a screw 53 by means of a knob 54 in order to effect axial movement of the friction wheel 45.
Patent GB-1393567-A (GB)
Title: Squeegee device
IPC: B41F15/44
Filed: 1972-09-27
Abstract: 1393567 Screen printing apparatus FRITZ BUSER AG MASCHINENFABRIK 26 Sept 1972 [29 Sept 1971] 44596/72 Heading B6C A squeegee device for screen printing machines comprises a mounting bar 3 supporting a squeegee body 5 of elastomeric material to which is attached a blade 7 of springy metal. The body may be of rubber and the blade of spring steel.
Patent GB-1322010-A (GB)
Title: Method of producing cadmium sulphide containing a region of  p-type conductivity
IPC: H01L21/425
Filed: 1970-09-18
Abstract: 1322010 Cadmium sulphide semi-conductors HITACHI Ltd 18 Sept 1970 [22 Sept 1969] 44645/70 Heading H1K A crystal of cadmium sulphide of N-type conductivity for a laser diode is formed with a P-type region by implantation of nitrogen ions from nitrogen gas in a duo-plasmatron; after which an indium electrode is soldered to the N- type body; and also to the ion implanted region with inter-position of an evaporated gold layer.
Patent GB-1401495-A (GB)
Title: Catalyst and process for using same
IPC: B01J27/186
Filed: 1972-09-28
Abstract: 1401495 Oxidation catalyst HALCON INTERNATIONAL INC 28 Sept 1972 [28 Sept 1971] 44875/72 Heading B1E [Also in Division C2] An oxidation catalyst comprises oxides of molybdenum, arsenic and phosphenis disposed on a support having external macropores of 1 to 500 microns diameter and a surface area of up to 2 m<SP>2</SP>/gm. The composition may further comprise a promoter, e.g. Al, Co or Cu. For each mol of molybdenum the composition contains 0.04 to 0.5 mol of phosphorous, 0.02 to 1.0 mol of arsenic and, if present, up to 0.5 mol of each promoter. The composition is formed by impregnation followed by decomposition. In the examples catalysts are formed which comprise: (i) oxides of As, Mo and phosphate and an alumina-silica carrier of S.A. 0.03 m<SP>2</SP>/gm and having 30% of its exterior surface composed of pores sized 10 to 250 microns; (ii) the same oxides on a silicon carbide-silica-alumina support of the same S.A. are pore size properties; (iii) composition (i) promoted by an oxide of cobalt; and (iv) composition (i) promoted by alumina.
Patent GB-1341882-A (GB)
Title: Knife blocks for cut pile tufting machines
IPC: D05C15/24
Filed: 1971-04-22
Abstract: 1341882 Tufting machines B & J MACHINERY CO Inc 22 April 1971 [12 June 1970] 45657/71 Divided out of 1341883 Heading D1G A knife block for a cut pile tufting machine comprises a body member having side edge portions 24, 26 and a connecting web 28, a pair of opposed grooves 32, 32' extending into the side edge portions for mounting a knife (16, Fig. 1, not shown) therein, a pair of spaced slots 36, 37 extending into one of the edge portions to receive legs 42, 43, of a U-shaped bracket 40, which legs are urged along the slots, to engage and hold the knife, by means 50. The device and a tufting machine employing the device are those disclosed in Specification Reference has been directed by the comptroller to Specification 1341883.
Patent GB-1180428-A (GB)
Title: Connector Plate Combination
Inventor: SANFORD ARTHUR CAROL
IPC: F16B15/00
Filed: 1967-10-06
Abstract: 1,180,428. Spiked plates. A. C. SANFORD. 6 Oct., 1967 [20 Oct., 1966], No. 45681/67. Heading F2H. A connector plate combination for joining wooden members comprises at least one connector plate 14 and a co-operative grommet plate 15, said connector plate having a body portion 18 and a plurality of teeth 16 extending outwardly from one side of said body portion, said grommet plate having a plurality of aper. tures 32 such that at least some of the teeth on the connector plate can be inserted therethrough to position the grommet plate adjacent the body portion of the connector plate. The teeth are formed in pairs stamped out of the body portion and joined to the body portion by a base portion 19. The apertures are of such a size as to engage the base of the teeth to prevent relative movement between the two plates. In the embodiments described the grommet plate has substantially smaller surface area than the connector plate.
Patent GB-1185906-A (GB)
Title: Improvements in Rare-Earth Oxide Phosphors Activated with Bismuth
IPC: C09K11/78
Filed: 1967-10-06
Abstract: 1,185,906. Luminescent materials and uses thereof. GENERAL ELECTRIC CO. 6 Oct., 1967 [31 Oct., 1966], No. 45687/67. Heading C4S. A luminescent material is of the formula (Ln 1-x-y Bi x <SP>+3</SP>Euy<SP>+3</SP>) 2 O 3,  wherein Ln is at least one of La, Y or Gd and x is is 0 000025 to 0-05 (e.g. 0-000025 to 0-01) and y is 0 to 0-08 (e.g. 0-03 to 0-06). When y=0, x is preferably 0À002 to 0-025; y may also be in the range 0-01 to 0-08. A matrix essentially of Y 2 O 3 , Gd 2 O 2  is of cubic structure one of La 2 O 3  being hexagonal. The preparations of (Y 0À995 Bi 0À005 ) 2 O 3 , (Y 0 . 495 Gd 0 . 495 Bi 0 . 01 ) 2 O 3 , and (Y 0 . 945 Eu 0 . 05 Bi 0 . 005 ). 2 - 0 3  are described in which the oxides are dissolved in nitric acid, oxalic acid added and the precipitate fired at temperatures in the range 700‹ to 1100‹C., for 60 to 90 minutes. Excitation by long and short U.V. radiation, e.g. 3650 Š, and cathode rays is disclosed with emission wavelengths from 4500 ‰ to 6500 Š. In other examples, when Ln is Y, for y=0À05, x=0-001, 0-002, 0-000050, for y=0-03, x=0-001 and 0-003; when Ln=Gd, y=0-05, x=0À002 and when Ln is La, y=0À05, x=0-005. Applications include uses as the red phosphor in c.r. tubes, lamps, and as single crystals in lasers. Reference is made to red phosphors in colour c.r.t.s.