baber/WOPTO huggingface dataset:
Patent GB-1103873-A (GB)
Title: Improvements in or relating to safety fences
Inventor: JEHU VICTOR JAMES
IPC: E01F7/06
Filed: 1964-09-22
Abstract: 1,103,873. Crash barriers. NATIONAL RESEARCH DEVELOPMENT CORPORATION. 22 Sept., 1965 [22 Sept., 1964], No. 38673/64. Heading E1G. In a crash barrier, a tensioned horizontal guard member is attached to upright posts by means releasing the guard member on impact. The guard member comprises a number of tensioned cables supported in open ended slots in I section posts. The cables have predetermined tension set by a screw and nut device containing a number of Belleville washers; the relative positions of the nut and the body of the device providing indication of the tension. Preferably two vertically disposed cables rest in a vertical slot and are anchored at longitudinally staggered positions to concrete surface blocks, means being provided for the ends, offset from the barrier line, to release transversely on impact with whiplash limiting means. A plurality of cables may be retained in U-brackets welded to the posts and the post may be extended to support a mesh anti-dazzle screen.
Patent GB-1161793-A (GB)
Title: Improvements in or relating to Centrifugal Ball-Operated Expanding V-Belt Pulleys.
Inventor: BARNISH PHILIP
IPC: F16H61/662
Filed: 1966-08-31
Abstract: 1,161,793. Expanding-wheel gear. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 31 Aug., 1966, No. 38894/66. Heading F2D. In a centrifugal ball-operated expanding V-belt pulley 15 of a two-speed drive for a washing machine, the ball-operated axially movable pulley flange 19 and fixed ball abutment member 16 are moulded from phenol formaldehyde. The fixed pulley flange 18 may additionally also be of this material. The flange 19 is formed with radial ball pockets 26 and intermediate axially-slotted extensions 28 in which engage driving dogs 33 of the abutment member 16 keyed to the driving spindle of a twospeed motor 10, balls 20 being housed in the pockets 26 and centrifugally moved outwards, at the higher motor speed, along ramps 32 on the member 16 to axially thrust the flange 19 towards the fixed flange 18 for the higher ratio drive to a spring-loaded pulley 12 formed with a further pulley 25 driving the washing machine drum (Figs. 1 and 2, not shown).
Patent GB-972268-A (GB)
Title: Improvements in aeroplanes having wings capable of adjustment in sweep
Inventor: TOMS CHARLES FREDERICK
IPC: B64C3/40
Filed: 1962-10-16
Abstract: 972,268. Variable geometry aircraft. HUNTING AIRCRAFT Ltd. Oct. 3, 1963 [Oct. 16, 1962], No. 39175/62. Headings B7G and B7W. An aeroplane has wings which are adjustable in sweep, each wing being mounted on pivots X, Y (Figs. 5 and 6), which move along paths A, B. Thus, the wing roots are moved forwards as the wings are swept back so that the longitudinal stability is not adversely affected. The pivots X are both on a saddle 23 (Fig. 7) movable in a guide 24 by a screwjack 25. The pivots Y (30 in Fig. 7) are movable in guides 29. The wings may be stiffened by further pivotal supports 2 (Figs. 5 and 6). To vary the dihedral and incidence with sweep, the pivots X may be inclined to the vertical, and to permit this angular movement, the pivots 30 may be telescopic (Fig. 11), each pivot comprising an hydraulic cylinder 305 set in the wing 22, the piston 304 being connected to a spherical slipper 303 movable in the guide 29. The ends of the cylinder are connected by a pipe 306, 307, which when closed by a valve 309 locks the pivot. When the wing sweep is to be varied, the valve 309 is opened and the piston 304 and cylinder 305 can move relatively, but damp any movement of the wing due to flight loads.
Patent GB-1466670-A (GB)
Title: Adipic acid manufacture
IPC: C07C55/14
Filed: 1973-08-20
Abstract: 1466670 Adipic acid IMPERIAL CHEMICAL INDUSTRIES Ltd 10 July 1974 [20 Aug 1973] 39223/73 Heading C2C In a continuous process for the preparation of adipic acid by oxidation of feedstock with nitric acid in which the temperature of the reaction mixture is controlled by recycling at least part through an external cooling circuit, at least part of the organic feedstock is fed to the cooling circuit upstream of at least one cooler. Feedstock comprises cyclohexanol or cyclohexanone or a mixture thereof, and may be the product of air oxidation of cyclohexane. A temperature of 70-90‹ C., with a 30-60 concentration of nitric acid are preferred conditions and the recycle through the cooling circuit may be at least 2 times.
Patent GB-1261885-A (GB)
Title: Improvements in or relating to prisms for head-up display apparatus
Inventor: ELLIS STAFFORD MALCOLM
IPC: G02B27/01
Filed: 1968-01-26
Abstract: 1,261,885. Prisms for head-up display apparatus. ELLIOTT BROS. (LONDON) Ltd. Jan. 9, 1969 [Jan. 26, 1968], No.39351/71. Divided out of 1, 261, 884. Heading G2J. The subject-matter is identical with that disclosed in Specification 1, 261, 884 but the claims are directed to the prism having dichroic films.
Patent GB-1361280-A (GB)
Title: Mining apparatus
IPC: E21F13/10
Filed: 1971-08-23
Abstract: 1361280 Endless conveyers GEWERKSCHAFT EISENHUTTE WESTFALIA 23 Aug 1971 [23 Sept 1970] 39439/71 Heading B8A [Also in Division E1] Mining apparatus to locate a drive motor 10 and tension an endless conveyer (not shown) comprises a beam 12 along which the motor 10 is slidable by an hydraulic jack 13, to advance, for example, the conveyer towards the mine face. Opposite ends of the beam 12 are secured, via a flexible coupling 15, to a plate 16 movable within a housing 17 by an hydraulic jack 18 to thereby tension the conveyer belt. Each housing 17 mounts a prop 26 to bear on the roof of the mine and fix the position of the housing against the forces applied thereto by the conveyer. A spring 28 ensures the prop 26 adopts an inclined attitude. In a further embodiment, Fig. 5 (not shown), the beam (12) is directly coupled to the plate (16) and the prop (26) is mounted on a base-plate (30) secured to the housing (17) by a flexible coupling (15).
Patent GB-1477900-A (GB)
Title: Liquid/gas separator
IPC: B01D19/00
Filed: 1974-09-10
Abstract: 1477900 Liquid-air separator JOH VAILLANT KG 10 Sept 1974 [14 Sept 1973] 39445/74 Heading B2P A separator for removing gas from a flow of gas-laden liquid comprises a housing 1, Fig. 1, a pipe 3 for supplying the flow of gas-laden liquid to the interior of the housing a flow divider 10 (11) in the housing for dividing the flow of liquid, as indicated by arrows 18. in a direction towards an exit opening 6 from the housing and in a direction towards a substantially vertical chamber 21 (21A) located in the housing and having an opening 28 at its upper end, the division of the flow being unequal so that a larger portion of liquid and a smaller portion of gas flow to the exit opening 6 and a smaller portion of liquid and a larger portion of gas flow to the chamber 21 (21A), the chamber having an orifice 10A (11A) which allows the smaller portion of liquid to flow from the chamber to the exit opening 6, the orifice 10A (11A) being spaced above the central axis 6A of the opening 6 (by a distance shown as d 1  (d 1 ') and at a distance from the central plane P 1 , P 2 , Fig. 1A, of the chamber 21 (21A) which plane is normal to the central axis 6A of the opening 6, thereby to provide, when the separator is in use, a rotation of gas-laden liquid in the chamber so that gas is freed from the liquid and escapes from the chamber via the opening 28. As shown in Fig. 1, the flow entering from supply pipe 3 into the interior of the housing 1 at 14 is divided by a deflector 15 into equal parts (arrows 16). The subsequent unequal flow division is due to the passage cross-sections a 1  and a 2  being greater than the passage cross-sections a 3  and a 4 . The exit opening 6 connects the housing 1 to a pump 2. Liquid passing through the opening 6 is discharged from the pump 2 through a pipe 5. The pipes 3 and 5 may be connected in a closed loop in a central heating system. A gas exhauster may be provided at the opening 28. Since the orifices 10A, 11A are arranged above the axis 6A of the exit opening 6 they provide venting for the latter. Only part of the gas is separated at any one time but the flow of liquid being in a closed loop, i.e. cyclic, the gas is eventually all removed from the circulating liquid. In another embodiment, Figs. 4 and 4A, there is only one chamber 21 and the flow divider 10 encloses the exit opening 6 over a sectorial angle of about 90‹ of arc and then extends tangentially to the opening to form a flow dividing wall 51. An orifice 10A in the divider is eccentrically located with respect to the central plane P 1  P 2  of the chamber 21 and provides communication between the chamber and the opening 6. Other forms of separator are described.
Patent GB-1378668-A (GB)
Title: Catch
IPC: E05C19/06
Filed: 1973-08-23
Abstract: 1378668 Latches MOTHERCARE Ltd 23 Aug 1973 [25 Aug 1972] 39706/72 Heading E2A  The latch 6 of a medicine chest must be operated simultaneously by both buttons 10 joined by beam 9 engaging the latch spring 3, in order to release it and allow the door (disposed at 7a or 7b) to be opened. This is to prevent opening. by children, whose hands would not span the buttons 10. In addition, dummy buttons 13 serve to distract attention from the active buttons.
Patent GB-874165-A (GB)
Title: Improvements in the preparation of boron nitride
IPC: C01B21/064
Filed: 1958-12-10
Abstract: Boron nitride is produced by heating a mixture of melamine and boric acid, or anhydride, in the ratio 0.5-3 mols. boric acid per mol. melamine, to at least 600 DEG C. in the absence of oxygen.  The reactants may be mixed, either as dry powders, or by the addition of melamine to a hot aqueous solution of boric acid and evaporating the resulting solution to dryness, or cooling to precipitate a solid mixture.  This solid mixture may be heated in an atmosphere of N2, or in a covered crucible packed in granulated coke and/or sand. Specification 874,166 is referred to.
Patent GB-908002-A (GB)
Title: Food ration kit for sports and military use
IPC: B65D81/34
Filed: 1960-11-22
Abstract: 908,002. Portable stoves. LAERUM, J., MOWINCKEL, J. E., and BARDSEN, H., [trading as LAERUM & CO., JOH]. Nov. 22, 1960 [Nov. 27, 1959], No. 40049/60. Class 126. [Also in Groups VI, VIII and XVII] A carton 26, Fig. 4, containing food tins 33, 37, a fuel container 36, food blocks 35, paper 34, folded paper cups 39 and a foldable tin opener 38 and having a cover 27, possesses a single top flap 31 opening up about score lines 23 to form a tubular heating stand over the top edges of which the tins 33, 37 engage via tongues 41 which may be initially inside them and bent out after they are opened. The carton 26 is made up from a blank, Fig. 1, comprising lower and upper stuck-together sheets 30, 31, respectively of cardboard and of aluminium foilcovered on both faces with asbestos sheet adhered thereto by polyvinyl acetate emulsion and impregnated with an organic silicon polymer. Air intake openings 25 are provided.
Patent GB-1193360-A (GB)
Title: Grading and Cascading Circuit for Lighting Arresters having a Plurality of Spark Gaps
IPC: H01T4/20
Filed: 1968-08-23
Abstract: 1,193,360. Lighting arresters. WESTING- HOUSE ELECTRIC CORP. 23 Aug., 1968 [31 Oct., 1967], No. 40462/68. Heading H2H. A lightning arrester comprises series-connected spark gaps 1... 5 and capacitors 6 ... 11, each of the capacitors 7 ... 10 being connected across two adjacent spark gaps as shown. A voltage grading resistor R may be connected across each spark gap and non-linear resistance elements may be connected in series with the gaps as indicated at 20. Resistors may be provided in each of the capacitor strings 6, 7, 8 and 9, 10, 11. One or each of two of the spark gaps is a calibrated control gap.
Patent GB-957314-A (GB)
Title: Improvements in aircraft-lifting and -sustaining rotors
IPC: B64C27/54
Filed: 1960-11-25
Abstract: 957,314. Helicopter rotor systems. J. G. WEIR, and C. D. CHEATER. Feb. 8, 1962 [Nov. 25, 1960], No. 40562/60. Heading B7W. An aircraft-lifting and -sustaining rotor has at least two blades 32, 34 each freely articulated to hub 24, 26 by a single pivot 28, 30 whose axis intersects the hub axis at right angles, the spanwise axis of each blade extending substantially from the hub axis at an angle (#) to the pivot axis and when the blade is in the trailing position, Fig. 2, in which the spanwise and pivots axes are in a plane at right angles to the rotor axis, it has a preset mean pitch angle (α). Preferably angle (#) should not exceed 18 degrees and angle (α) should be in the range 6-18 degrees. In Fig. 1, two pairs of blades 32, 34 and 44, 46 are mounted on arms 24, 26 and 36, 38 of coaxial hubs driven in contrarotation from engine 22 through gears 16, 18, 20 and shafts 12, 14. For pitch and roll control by tilting the rotor head, Fig. 4, not shown, the hubs are connected to shafts 12, 14 by constant velocity universal joints.
Patent GB-1160837-A (GB)
Title: Injection Mould for the Production of Chain Links
IPC: B29C45/00
Filed: 1967-09-05
Abstract: 1,160,837. Injection mould for chains. WEST - PLAST GES. FUR KUNSTSTOFF - VERARBEITUNG m.b.H. 5 Sept., 1967 [6 Sept., 1966], No. 40611/67. Heading B5A. An injection mould for the production of chains with jointless elongated links of circular or other cross-section comprises four mould parts 16, 17, 26 and 27 and two planes of division mutually perpendicular coinciding with the mid planes of two adjacent links, the two adjacent mould parts 16 and 17 being guided by guides 13 and 14 which lie at an acute angle to the mid-plane of the link enclosed by the mould parts and which provide play. The mould is closed by upward movement of the ram 18 and this together with guides 13 and 14 causes the mould parts 16 and 17 to move upwards and towards each other at the same time their surfaces 22 and 23 engaging surfaces 24 and 25 of the mould parts 26 and 27 so bringing these together against the action of springs 29 and 30. The mid plane of the recesses for links 35<SP>1</SP> and 38<SP>1</SP> lies on the horizontal dividing plane between mould parts 16, 17 and 26, 27. Synthetic plastics material is injected through passages corresponding to 31<SP>1</SP>, 32<SP>1</SP>, 33<SP>1</SP>, 341 and 39<SP>1</SP> in the finished chain and fills the recesses for the five links 35<SP>1</SP>, 37<SP>1</SP> and 38<SP>1</SP>. The mould has recesses at its ends to accommodate a previously moulded link.
Patent GB-1178209-A (GB)
Title: Purification of Mesitylene
Inventor: AMIR EMANUEL MIRZA
IPC: C07C7/148
Filed: 1968-08-26
Abstract: 1,178,209. Mesitylene. ESSO RESEARCH & ENG. CO. 26 Aug., 1968, No. 40640/68. Heading C5E. Mesitylene is recovered from an aromatic fraction containing it together with impurities such as ethyl toluenes and pseudocumene by selective alkylation of impurities with an alkylating agent containing more than 2 carbon atoms and no tertiary carbon atoms, in the presence of an acid catalyst. Suitable alkylating agents include propylene, butenes, pentenes, higher olefins, cyclopentene, C 3-20  alcohols, isopropylchloride, eicosylchloride, and sec.-butylmercaptan. Conventional Friedel-Crafts or mineral acid catalysts are used, particularly A1C1 3 . Recovery is suitably by fractionation. For original mesitylene contents of less than 50%, the recovered product may be subjected to a further selective alkylation. 99%+ mesitylene may be obtained.
Patent GB-950277-A (GB)
Title: Improvements in or relating to flexible permanent magnet material
Inventor: STANLEY ALAN GEORGE
IPC: H01F1/00
Filed: 1959-12-02
Abstract: 950,277. Laminates. DARWINS Ltd. Dec. 1, 1960 [Dec. 2, 1959], No. 40870/59. Drawings to Specification. Heading B5N. [Also in Divisions B8, E2 and H1] A sheet of flexible plastic material in which powdered permanent magnet material of high coercive force has been compounded, and which is magnetized perpendicularly to its surfaces, is superimposed on and bonded to a sheet of plastic material in which has been compounded powdered material of relatively high magnetic permeability, e.g. iron powder, to form a composite flexible magnetic sheet. The plastic material may be rubber, synthetic rubber, polyethylene or polyvinyl chloride. The magnet material may be barium ferrite. The first sheet may be magnetized in bands or regions of alternate polarity. A compound sheet may comprise two such sheets on opposite sides of a sheet of the plastic material containing powdered material of high magnetic permeability. Alternatively, the first sheet may be of single polarity over the whole of one surface and of opposite polarity over the other. In this case, sheets of the two types may be alternated, with the surface polarities of alternate sheets of the first type reversed. Specifications 950,273, 950,274 and 950,278 are referred to.
Patent GB-1428730-A (GB)
Title: Solid-state display apparatus and wafer for use therein
IPC: H01L25/075
Filed: 1973-08-30
Abstract: 1428730 Electroluminescence MATSUSHITA ELECTRONICS CORP 30 Aug 1973 [5 Sept 1972] 40892/73 Heading C4S [Also in Divisions G4-G6] A display device comprises an array of infrared emitting diodes 4 and corresponding blocks of phosphor 5 which convert the infra-red radiation to visible light. The device comprises an insulating layer 1 supporting an Al substrate 2 with recesses 3 arranged in a figure-ofeight or to form letters or symbols. Each recess contains a GaAs diode and a block of luminescent material 5 embedded in resin 6 which acts as a light guide for the infra-red radiation; the back wall of the recesses are reflective. The blocks are of resin and a phosphor comprising one or a mixture of LaF 3 ; Yb, Er : YF 3 ; Yb, Er : YF 3  ; Yb, Tm : YOCl; Yb, Er : Y 3 OCl 7 ; Yb, Er. The cross-section of the blocks may be a circle, ellipse, square or polygon. The resins are epoxy, polyurethane or silicone. The wires 9 are of Al or Au. The Al substrate may be replaced by an Al coating on a recessed insulating layer.
Patent GB-996372-A (GB)
Title: Improvements in or relating to electric contact elements
IPC: H01R13/432
Filed: 1962-10-30
Abstract: 996,372. Two-part couplings. M. HARTING, [trading as HARTING WERK FUR ELEKTROTECHNIK UND MECHANIK W.M.]. Oct. 30, 1962 [Dec. 27, 1961], No. 40924/62. Heading H2E. A hermaphrodite electric coupling comprises a pin 2 semi-circular in cross-section and a complementary hollow resilient shell 6 dimensioned so that the mating pin fits between pin 2 and shell 6 and vice versa. The shell 6 is secured to a neck 5 of the pin 2, and is indented into a hole in the neck to prevent rotation. The shell 6 is extended to form a resilient skirt 20 for securing the contact in an insulated cavity. In modifications, Figs. 1 to 8b (not shown), the contact is not mounted in a cavity, the skirt 20 being omitted, and may be soldered or crimped to the connecting lead. The contacts may be plated.
Patent GB-1112080-A (GB)
Title: Apparatus for beating and disintegrating fibrous materials in liquid suspension
IPC: D21D1/32
Filed: 1966-09-14
Abstract: An apparatus for beating and disintegrating fibrous materials in liquid suspension, comprises a container for the suspension, a rotary impeller mounted at the end of a driving shaft in an opening in the container, the impeller having substantially radially extending fins projecting into the container to cause, when the impeller is rotated at a high speed, an intense circulation of the liquid in the container and a mechanical beating action and, hence, disintegration of the liquid suspended material coming into contact with the impeller fins, and an annular screening device surrounding the rotary impeller in the container opening, covering the outlet duct for the container, and being mounted on a tubular shaft surrounding the impeller driving shaft so as to be rotatable independently of the impeller.  The screening device may comprise a perforated plate mounted on top of a centrifugal pump which sucks the disintegrated suspension through the plate, or may comprise a plurality of blades extending radially outwards from the tubular shaft, with the disintegrated suspension passing between the blades.  The edge of each blade facing the container is directed towards the centre of the container and is straight or toothed, with the teeth optionally being bent out of the plane of the blade either towards the same side of the blade or alternatively to opposite sides. The screening device may be rotated in the same direction as, or in the opposite direction to, the impeller.  The impeller may be mounted in the base or in a side of the container.
Patent GB-1046976-A (GB)
Title: Improvements in and relating to fasteners
Inventor: MARRIOTT JOHN HENRY
IPC: F16B2/24
Filed: 1963-10-17
Abstract: 1,046,976. Screw sockets. F. T. PRODUCTS Ltd. Oct. 15, 1964 [Oct. 17, 1963; June 26, 1964], Nos. 41103/63 and 26562/64. Heading F2H. [Also in Division E2] A screw socket in the form of a plastics screwreceiving bush 25 having flanges 26, 27 is injection moulded in an aperture which as described is in one end portion of a fastener (see Division E2), the bush in use receiving a self-tapping screw.
Patent GB-1009119-A (GB)
Title: Improvements in or relating to glass containers
IPC: B65D39/16
Filed: 1962-10-31
Abstract: 1,009,119. Container closures. ALFRED BIRD & SONS Ltd. (GENERAL FOODS CORPORATION). Oct. 22, 1963 [Oct. 31, 1962], No. 41158/62. Heading B8T. A glass jar has an unground neck to receive the plug portion 4 of a hollow glass stopper 1, and a resilient cup-shaped sealing member 10, e.g. of polythene, is attached to the plug portion by an internal rib 21 which is forced over a rib 5. When the stopper is in place a tapered portion 13 of the sealing member is compressed against the neck mouth.
Patent GB-984084-A (GB)
Title: Improvements in a process for the manufacture of urethanes
Inventor: IBBOTSON ARTHUR
IPC: C08G71/00
Filed: 1962-10-31
Abstract: Urethanes of the general formula Z(OCONH2)n(OH)m wherein Z represents the residue of a primary or secondary alcohol Z(OH)n + m after removal of the hydroxy groups, n is an integer of at least 1 and m is zero or an integer, are prepared by heating urea with a primary or secondary alcohol in the presence of a tertiary amine, stannous chloride or hydroxide, a stannous salt of an organic acid or an organo-tin compound containing at least one direct carbon to tin band.  The alcohols may be mono- or polyhydric alcohols, hydroxylic ethers or polyethers, hydroxyl-ended polyesters or hydroxyl-ended polymers and co-polymers, e.g. polymers of cyclic oxides.  Usually 5%, preferably 0.2 to 2.5%, by weight of catalyst is employed and the reaction may be performed in the presence of a diluent or solvent, including an alcohol other than that alcohol to be reacted with urea. The reaction may be accelerated by removal of the ammonia formed either by carrying out the reaction under reduced pressure or by passing an inert gas through the reaction mixture.  Examples relate to the preparation of methanes from n-butanol, triethanolamine and a polypropylene glycol. Specification 899,948 is referred to.
Patent GB-1486762-A (GB)
Title: Thickener for acidified milk gels
IPC: A23L29/20
Filed: 1976-10-05
Abstract: 1486762 Food thickeners; milk gels MERCK & CO INC 5 Oct 1976 [8 Oct 1975] 41319/76 Heading A2B A thickener suitable for adding to a mixture of milk and an acidic food juice e.g. fruit juice comprises type B gelatin having an isoelectric point of pH 4.7-5.1, and carboxymethyl cellulose. A preferred composition comprises 15- 410/; gelatin, 1.5-4% CMC, 0.16-0.2% of an acidulent (e.g. fumaric, adipic, citric, tartaric or succinic acid), and a sweetener (e.g. 60-81% sugar or the equivalent sweetening amount of saccharin or an alkali or alkaline earth metal salt thereof. The thickener may be added so that it forms about 10% of the total weight of a mixture also containing approximately equal amounts of milk and a fruit juice e.g. orange, grapefruit, black cherry, papaya, mango, grape, cranberry, lemon, lime or apple. The milk and juice may be in dried form. The mixture may be gelled by heating and stirring at 160F for 30 minutes.