baber/WOPTO huggingface dataset:
Patent GB-1491112-A (GB)
Title: Turbines
IPC: F01D11/16
Filed: 1975-07-25
Abstract: 1491112 Cooling and heating turbines SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 25 July 1975 [31 July 1974] 31132/75 Heading FIG and F1T A gas or steam turbine includes a proportioning device to adjust the relative flows of heating and cooling fluids to a stator part with changing operating conditions so as to control the rotor tip clearance J. Fig. 4 shows a gas turbine engine in the cold state at starting. The proportioning device comprises an annular wall 3a with a circumferential array of cold air ports 6a and an inner peripheral flange 35. Wall 3a co-operates on its upstream side with a structure on the combustion chamber wall 18a comprising radial and axial walls 32, 21a with cold air ports 33, 39 and a flange 37 defining an annular cold air passage 38 with flange 35. On its downstream side wall 3a co-operates with a disc 8a having a circumferential slot 41, ports 9a, 10a and a flange 15a defining an annular hot gas passage 24a with flange 37. In the starting condition in Fig. 4, a stream of hot combustion gas 16a from the main flow passes without obstruction via passage 24a and ports 9a into chamber 26a. The latter also receives cold air via ports 39, passage 38 and ports 9a. The mixture flows via tubes 53 into chamber 13a to thus heat the stator structure 28a surrounding rotor blade tips 20a and maintain the clearance J at a safe value during engine acceleration. As engine temperature increases both wall 18a and disc 8a expand radially relative to wall 3a until a stable state is reached, Fig. 4c, in which annular passage 38 and ports 9a are completely blocked and only cold air flows into chamber 26a via the now open ports 33, 6a and 10a, before flowing onwards to cool stator 28a. Wall 32 expands at a faster rate than disc 8a, guidance of the latter being assisted by dogs 42, 43. Modified arrangements of proportioning device are described, e.g. in which upstream wall 32 is omitted, Figs. 2, 2a (not shown).
Patent GB-1277654-A (GB)
Title: Scanning assembly for video tape machines
IPC: G11B15/61
Filed: 1969-06-19
Abstract: 1277654 Rotary head systems WESTEL Inc WESTEL ASSOCIATES and WESTEL CALIFORNIA INVESTORS [trading as WESTEL CO] 19 June 1969 [19 June 1968] 31160/69 Heading G5R In a helical scan system, a bracket 36 is used to adjustably support and locate a rotary heads drum assembly 40. To bring the heads scanning plate 144 to the desired location, the lower drum part 142 is mounted on a bolt 202, which loosely fits a bore 84 in the bracket 36, and is then moved vertically until the plate 144 contacts a dowel 368, Fig. 19, fixed to a spacer body 360 temporarily supported at a predetermined level relative to an upper reference surface 64 of the bracket. The bolt 202 is then tightened to bring the drum part into contact with further reference surfaces 70a, 70b of the bracket. The upper drum part 140 may then be supported by a bolt 162, as indicated, when the spacer is removed. The bracket 36 also supports entry and exit inclined tape guides 38, 42, the guides being located prior to adhesive fixing in relatively large apertures 100 with the aid of a specially constructed jig (Fig. 8, not shown).
Patent GB-1293490-A (GB)
Title: Improvements in or relating to roller trains
IPC: B65G13/00
Filed: 1971-07-02
Abstract: 1293490 Roller conveyers CONTINENTAL GUMMI-WERKE AG 2 July 1971 [3 July 1970] 31167/71 Heading B8A Stationary axle members 3 of rollers 1 are secured in rubber battens 5 mounted on side frame members by vulcanization. By providing L-shaped side frame members (6), no adhesion is required between these members and the battens (5), Fig. 2 (not shown). In Fig. 3 (not shown), a side member (6) is of U-section. Fig. 4 shows a batten 5 fastened to a side member 6 and shaped to provide a head 10 in which an axle member 3 is secured by a nut 14.
Patent GB-1273218-A (GB)
Title: Improvements in tail-lights for vehicles
IPC: F21V5/00
Filed: 1969-06-19
Abstract: 1,273,218. Vehicle lamps. ROBERT BOSCH G.m.b.H. 19 June, 1969 [20 June, 1968], No. 31173/69. Heading F4R. A vehicle tail light has a dispersing lens which includes four corrugated zones 3, 4, 5, 6, arranged symmetrically relative to a horizontal and a vertical plane located perpendicularly to the plane of the lens and passing through its centre to deflect light both in a direction away from the horizontal plane and away from the vertical plane. The corrugations have saw-tooth cross-sections when considered in both the horizontal and vertical cross-sections, and where they do not fill the lens they are rectangular honey-comb lens portions 2. The light distribution from a light fitted with such a lens is evenly distributed over a rectangular area. In a second embodiment the four corrugated zones are symmetrically positioned as before, but the corrugations are inclined at an angle of between 10 and 25 degrees to the vertical, are ribbed or fluted and fill the lens area, Fig. 6 (not shown).
Patent GB-1006649-A (GB)
Title: A process for preparing polyethylene
IPC: C08F110/02
Filed: 1964-08-04
Abstract: Ethylene polymers are prepared by polymerizing ethylene in the presence of a catalyst obtained by reacting a solid, crystalline titanium trichloride with a Group II or III metal alkyl, at 50 DEG to 100 DEG  C. and 150 to 750 p.s.i.g. and in the presenc of a paraffinic hydrocarbon havingr a boiling point below 10 DEG  C. and which is liquid under the polymerization conditions.  Specified hydrocarbons are ethane, propane, butane, isobutane and neopentane. Hydrogen may be present as modifier.  The preferred catalyst components are titanium trichloride, which may be co-crystallized with aluminium chloride, and aluminium alkyls such as triethyl aluminium or diethyl aluminium chloride.  The titanium trichloride may be ball milled in the dry state. The hydrocarbon diluent may be pretreated with aluminium trialkyl, and the polymer may be de-ashed by treating with isopropanol or an isopropanol-heptane azeotrope containing hydrogen chloride.  The polymerization of ethylene is exemplified and apparatus suitable for carrying out the process of the invention is described and illustrated.
Patent GB-1157881-A (GB)
Title: Method of and apparatus for manufacturing the Plates of Plate-Type Heaters and the like
Inventor: ORTH PETER
IPC: B21D53/04
Filed: 1966-07-12
Abstract: 1,157,881. Corrugating; making radiators. P. ORTH. 12 July, 1966 [20 July, 1965], No. 31317/66. Headings B3A and B3E. Plates for a plate-type radiator are formed from metal strip by rolling the strip between a pair of profiled rolls 3, 4 to produce transverse ribs 18 and longitudinal channels 19 in the strip. Projections 9 on the rolls 3 co-operate with depressions 10 in the roll 4 to produce transverse ribs, while co-operating annular rings and depressions at the ends of the rolls produce the channels, which are of greater depth than the ribs. The channels extend from the plane of the strip in the opposite direction from the ribs, in order to minimize distortion of the strip during forming. Rollers 8a and 8b on the exit side of the rolls complete the forming of the channels. Further rollers 13 and 14 merely serve to guide the formed strip before it is cut to produce the plates. The rollers 8a, 8b, 13 and 14 engage only the edges of the strip and are adjustable towards and away from each other to accommodate different strip widths. A roller assembly 7 is provided to feed the strip between the rolls 3 and 4, the rolls themselves being removable vertically to permit the use of replacement rolls.
Patent GB-994116-A (GB)
Title: Stabilized compositions based on low-pressure polymers or copolymers of alkenes-1 and process for the preparation thereof
IPC: C08K5/13
Filed: 1963-08-08
Abstract: A polyolefin such as polypropylene is stabilized with (a) an organic sulphur compound, (b) a polynuclear polyphenol consisting of a benzene ring substituted with n 3,5-dialkyl-4-hydroxybenzyl groups bound to n different ring carbon atoms and with 6-n alkyl groups bound to each of the remaining ring-carbon atoms, n being 3 or 4, and (c) a bis- or tris-phenolic compound obtained by reacting either a saturated or unsaturated aldehyde or ketone, or sulphur dichloride, with a phenol having at least one ortho ring-carbon atom bound to a secondary or tertiary alkyl group. Specified stabilizers are, for example:  (a) dihydrocarbyl mono- or disulphides, dialkyl esters of thiodicarboxylic acids; (b) 1,3,5 - trialkyl - 2,4,6 - tris(3,5 - di - t. - butyl - 4 - hydroxybenzyl)benzene; and (c) 1,1,3 - tris(2 - methyl - 4 - hydroxy - 5 - t. - butylphenyl) butane, thio-bisphenols. Specifications 890,761, 920,476 and 951,931 are referred to.
Patent GB-225393-A (GB)
Title: Improvements in and relating to the production of soda crystals
IPC: C01D7/35
Filed: 1923-12-17
Abstract: 225,393. Kidd, H. L. Dec. 17, 1923. Crystallizing. - T h e crystallization of sodium carbonate solution is promoted by passing electricity through the solution. An alternating current or the interrupted current from the secondary of an induction coil may be used and may be passed through galvanized iron hangers immersed in the solution. The solution may be formed by adding soda ash to cold water when the heat of solution raises the temperature sufficiently to form a solution which deposits crystals on cooling. Soda ash is supplied by a hoisting gear 9 to a series of tanks 1 in which the solution is made. The secondary of an induction coil 11 is earthed at one end and connected at the other by wires 17 to galvanized iron hangers 15 supported in the tanks. The crystals are removed from the tanks into an. inclined gauze trough 3 from which liquid falls into a trough 4 and passes to a tank 7. The liquid is returned to the tanks 1 by a pump 8. Specification 15613/91, [Class 1, Acids, alkalies, &c.], is referred to.
Patent GB-1472778-A (GB)
Title: Electrostatic transducers
IPC: H04R19/01
Filed: 1974-07-17
Abstract: 1472778 Electret transducers SONY CORP 17 July 1974 [23 July 1973] 31693/74 Heading H4J An electrostatic transducer comprising an electret diaphragm disposed between a pair of spaced back electrodes has, in addition, an electrostatic shield to minimize gradual discharge of the electret. The electret may be formed by sandwiching polyethylene, polyester or polypropylene film between two electrodes, heating to 120 C. and applying an electric field whilst first maintaining the elevated temperature and then allowing it to fall. The electret thereby formed has a single polarity surface charge, either positive or negative. In a first embodiment (Fig. 3) the electret diaphragm 10, negatively charged, has a spacer ring 11A, 11B bonded to each side by epoxy resin. Push-pull electrodes 15A, 15B each consist of a high polymer resin plate 12A, 12B with an electrically conductive layer 13A, 13B on the inner surface. Air holes 14A, 14B are provided. The conductive layers 13A, 13B are of silver paint, carbon graphite applied by a silk screen process, vacuum evaporated aluminium, gold or nickel or punched aluminium, stainless steel or brass. Electrostatic shields 18 are formed of a mesh of stainless steel, brass, carbon or conductive cotton. The shields 18 are connected to the corresponding layers 13A, 13B through connection which lead to the secondary winding of a transformer 17. The diaphragm 10 may be replaced by two electret films (40A, 40B), Fig. 7 (not shown), each having aluminium layers (41B, 42B) bonded to one surface, the aluminium layers (41B, 42B) themselves being bonded together. Alternatively (Fig. 4) spacer rings 11A, 11B are on opposite sides of an electret diaphragm. Back members 15A, 15B with inner electrode coatings and air holes 14A, 14B have the electrode coatings electrically connected to respective metal mesh shields 19A, (19B, not shown). Frames 21A, 21B are integral with the members 15A, 15B (see Fig. 5, not shown). Frame 21A has two apertures 22A and two pins 23A which fit two pins 23B and two apertures 22B on frame 21B.
Patent GB-305645-A (GB)
Title: Process for the preparation of sodium sulphide or similar inorganic chemical substances in the form of bodies of predetermined shape and size
IPC: C01B17/40
Filed: 1928-10-31
Abstract: 305,645. Kali-Chemie Akt.-Ges., (Assignees of Rhenania-Kunheim Verein Chemischer Fabriken Akt.-Ges.). Feb. 10, 1928, [Convention date]. Addition to 233,316. Spray, freezing. - In the production from sodium sulphide and similar chemical substances of bodies of predetermined shape and size by allowing individual drops of the molten substance to fall on to surfaces maintained below the melting point of the substance, as described in the parent Specification, the surfaces are preliminarily treated with substances which are highly viscous at the working temperatures employed, for instance with highly viscous oils or fats, to prevent spreading of the drops. A sufficiently thin film may be obtained by application at high temperatures or by application in solution followed by volatilization of the solvent. Cylinder oil or high @pressure compressor oils for instance, may be applied in solution in benzene.
Patent GB-476205-A (GB)
Title: Improvements in or relating to the production of a rubber article having a rough sponge-like surface
IPC: B29C37/00
Filed: 1936-11-19
Abstract: 476,205. Brushes and mops. SAMUEL, M. Nov. 19, 1936, No. 31703. [Class 19] [Also in Group V] Sponge rubber articles, e.g. brushes, are provided with a rough sponge like surface, whilst retaining the outer skin normally produced during vulcanization, by impressing during vulcanization small closely adjacent recesses or cavities into the surface to such a depth that the size of the cells produced in the surface is substantially equivalent to the size of the cells in the interior of the sponge rubber, e.g. by providing the inner surface of the vulcanizing mould with closely adjacent pointed or granular projections. The Figure shows a brush 1 of sponge rubber, the upper and lower surfaces 3 of which have been roughened by the above process ; these surfaces may be replaced in part by rubber bristles.
Patent GB-499605-A (GB)
Title: Improvements in or relating to shaft brackets particularly ship's propeller shaft brackets and associated parts
IPC: B63B3/42
Filed: 1937-11-18
Abstract: 499,605. Shaft brackets. STEVENS, C. H. Nov. 18, 1937, No. 31741. [Class 113 (ii)] A fabricated propeller shaft bracket has a tubular or part tubular portion connected to the hull by one or more integral arms of streamlined cross-section. In one form, Fig. 1, the tubular portion is formed partly of a portion 2 integral with the arms 3 and partly of an insert 5 welded to the remainder. In a modification, the tubular part is surrounded by a plate which is shaped to form a single streamlined arm. In a further modification, Fig. 15, the tube 16 passes through and is welded to several plates 37, these being surrounded by a streamlined cover-plate 45.
Patent GB-1122367-A (GB)
Title: Sparking plug cover
Inventor: GAYLES GEORGE ALFRED
IPC: H01F38/12
Filed: 1966-07-15
Abstract: 1,122,367. Sparking plug connectors. WIPAC DEVELOPMENT Ltd. 14 July, 1967 [15 July, 1966], No. 31960/66. Heading H2E. [Also in Division H1] A sparking plug cover incorporating an ignition coil has a cup-shaped part 10 of moulded insulating material accommodating in an annular recess in its cylindrical wall an iron core 11, secondary winding 12 and primary winding 13, and a connector cap 14 which engages the terminal pin of the sparking plug is fixed to the base of cup 14 by rivet 15 in electrical connection with the secondary winding via lead 16, the primary winding being connected to the low tension supply circuit via lead 20 and contact plate 18, and the two windings having a common earth contact plate 22. Contact plates 18, 22 are riveted to moulded plate shaped part 17 which covers the open end of the annular recess, a hood 21 integral with part 17 shrouding contact plate 18.
Patent GB-365643-A (GB)
Title: Improvements in or relating to machines for progressively operating upon boots or shoes
IPC: A43D93/00
Filed: 1930-10-24
Abstract: 365,643. Boot-making machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., Union Works, Belgrave Road, Leicester.-(United Shoe Machinery Corporation; 140, Federal Street, Boston, U.S.A.) Oct. 24, 1930, No. 31961. [Class 17 (i).] Ornamenting.-Relates to machines of the kind described in Specification 19122/06, [Class 17, Boots &c.], for stitch-indenting or other ornamenting or pressing operations on the marginal portions of shoe bottoms by a rotary tool. The tool is mounted for free rotation on a shaft itself freely rotatable. Spinning of the tool is thus stopped by the lightest contact with the work, and scuffing or gouging prevented. The work-feeding support is angularly adjustable about an axis located substantially in a plane which contains the axis of the tool, and is rotated at a low speed by a self-contained planetary gear assembly. The work support 64 is covered with textile or rubberized fabric held in place by a clamping band 70. It is supported on ball bearings by a carrier member 74 adjustable along an arcuate guide in a head 76 at the upper end of a stem 78 vertically adjustable by a hand-wheel 84 actuating worm and screw gearing. The support is driven by a shaft 62 connected by slide blocks and universal joints with a shaft 50 driven by a gear 46 on a shaft 16. This shaft is driven by an internallvtoothed wheel 20 meshing with a spur-wheel 22 rotating with a larger spur-wheel 24 meshing with a stationary annular gear 26. The wheels 22, 24 roll inside the other pair and are free to rotate on an eccentric 36 driven by a pulley 30, the total gear reduction being 22 to 1. This gear is housed in a casing 14 which may be interchanged for others giving different gear ratios. A flange 32 on the pulley 30 prevents oil escaping from a chamber 40. The stitchindenting wheel 100 is free to rotate on a pin 102 secured to a shaft 90 supported on ball bearings in an eccentric sleeve 104 driven by a belt 112 and supported in ball bearings 106 carried by a frame 114, which can rock about trunnions in the plane of the belt. To press the tool yieldingly towards the work, the rear end of the frame 114 is urged upwardly by a spring 128 on an adjustable rod 124, the spring engaging a sleeve 122 connecting arms at the rear of the member 114. For the insertion of work, the member is rocked about its trunnions by a lever 132 actuated by a treadle. A sheet metal yoke 140 protects the upper of the shoe. The tool is heated by radiation from an electric heater 144 held in sheet metal clamps 142.
Patent GB-1580079-A (GB)
Title: Dampening liquid spraying device
IPC: B41F7/30
Filed: 1977-07-29
Abstract: The damping-medium spraying device for damping a roller in an offset printing machine comprises a flinger roll (1) which rotates in a housing (4) about an axis running parallel to the offset printing machine rollers. The housing (4) has an outlet slot (8) which is bounded at the bottom by a covering plate (9). The flinger roll (1) has webs (2) which run radially outwards and enclose the flinger roll (1) at an inclination to a plane running vertically to the roll axis. The webs (2) have blades (3) which fling off the damping medium. The damping medium is fed to the webs (2) through spraying nozzles (5). Provided along the roll axis in the housing (4) are a plurality of spraying nozzles (5) by means of which a veil of liquid of low height and large lateral extent can be produced. This spraying device delivers a spraying jet with droplets of substantially equal, small size and allows precise metering even of very small quantities of the flung-off damping medium. <IMAGE>
Patent GB-1531502-A (GB)
Title: Float valves
IPC: F16K31/26
Filed: 1976-06-08
Abstract: 1531502 Valves PEGLERS Ltd 8 June 1976 [31 July 1975] 32094/75 Addition to 1337110 Heading F2V The float valve of Specification 1,337,110 is modified in that the two non-return valves 56, 58 are provided in a unit coupled to the float valve inlet pipe 12, the valve 56 comprising a ball element which closes an outlet from said unit and is guided within an outlet passage by a moulded element having a plurality of vanes extending along the outlet passage. The second non-return valve 58 constitutes an air break device and consists of a resilient washer 66 which is urged to close a plurality of air holes 72 in a closure cap 70. In a second embodiment the air holes are provided in a flange of the unit body part, the washer 66 then being housed in the closure cap 70. A further embodiment of the unit is described and claimed in Specification 1,510,895.
Patent GB-1037896-A (GB)
Title: Iodopropargyl carbinol compounds
Inventor: SEKI SHIGEO
IPC: C07C21/04
Filed: 1964-07-28
Abstract: The invention comprises compounds of general formula <FORM:1037896/C2/1> where R1 is alkyl (1-6 C), phenyl or phenyl substituted by one or two halogen atoms, and R2 is hydrogen, alkyl (1-6 C), phenyl or phenyl substituted by one or two halogen atoms, or R1 and R2 are combined to form a cycloalkyl group; and their preparation by reacting iodine with compounds R1R2C(OH).CH2.C ­ CH in an aqueous alcohol and in the presence of an alkali metal hydroxide. Compounds R1R2C(OH).CH2.C ­ CH are prepared from propargyl bromide and R1R2CO with zinc.  Pharmaceutical and veterinary compositions comprise compounds I with carriers.  External application of these antimicrobial compounds is mentioned.
Patent GB-215684-A (GB)
Title: Improvements in and relating to lifting jacks for motor and like vehicles
IPC: B66F15/00
Filed: 1923-12-22
Abstract: 215,684. Baert, C. E. Dec. 22, 1923. Jacks.-The lever d has a curved part n to engage the axle of a motor vehicle and is provided with a pivot pin e which rests in notches g<1>, g<2> formed in opposite sides of the slotted head of the pedestal a. A stirrup q surrounding the pedestal engages with teeth h<1> - - h<4> and is pivoted at o to the lever d. Extensions r of the arms p of the stirrup are joined by a cross-piece s which forms an operating handle or pedal.
Patent GB-153906-A (GB)
Title: Improvements in motion picture machines
IPC: G03B41/08
Filed: 1920-11-15
Abstract: 153,906. Plank, W. C. Nov. 13, 1919, [Convention date]. Kinematograph apparatus.-In apparatus for continuously moving films, the optical compensating means comprises two prisms or rings of prisms 4 each having two parallel reflecting surlaces, the two prisms or sets of prisms being rotated at the same speed round a common axis but in opposite directions. As shown, the prisms are contiguously arranged round drums 5, 6, have inner ends narrower than the outer ends, and have parallel reflecting surfaces of which one describes a greater circle than the other. The optical system comprises a condenser 12, a prism 3 before the gate 2, the prisms 4, and an objective 13. An adjustable thin lens may be arranged between the prism 3 and the prisms 4 to increase definition and permit adjustment of the system in accordance with the distance between successive picture centres. The prisms 4 are rotated by means of a handle 14 on a hollow shaft 10. The rings of prisms are mounted on rotatable drums 5, 6, of which the drum 5 is secured to the shaft 10. Each drum has a bevel wheel 11 in mesh with bevel wheels 8 carried on fixed axes, so that the drums rotate at equal and opposite speeds. The film 1 passes from the gate 2 round the drum 5 and is fed thereby. An adjustable jockey roller is provided for film centring.
Patent GB-327433-A (GB)
Title: Improvements in or relating to circuit arrangements for amplifying electric oscillations
IPC: H03F1/50
Filed: 1928-11-05
Abstract: 327,433. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Nov. 5, 1928. Thermionic amplifiers.-An amplifier comprises two thermionic valves I, II and a single plate voltage source B having its positive terminal connected directly to the plate of the first valve and through an output impedance Tu to the plate of the second valve. The negative terminal of the source B is connected to the filament of the second valve and through a resistance R, which is preferably variable, to the filament of the first valve.