baber/WOPTO huggingface dataset:
Patent GB-829183-A (GB)
Title: Improvements in rotary-wing aircraft
IPC: B64C27/18
Filed: 1955-12-21
Abstract: 829,183. Rotary wing aircraft. AEROTECNICA S. A. Dec. 21, 1955 [April 11, 1955], No. 36668/55. Class 4. In a rotary wing aircraft in which the rotor is driven by a gas turbine power plant, a proportion of the exhaust gases are fed to a duct 2 at the tail end of the fuselage 1 to be ejected either rearwardly to provide forward propulsion or laterally to provide an anti-torque effect. The rear end of jet pipe 2 carries, on a vertical pivot 4, a hollow frusto-conical member 3 which may by swung transversely of the aircraft by a control 5 operated in conjunction with rudders 6 by the pilot so that the exhaust gases may be diverted to either side by a pair of deflectors 7 formed as shown in the plan view in Fig. 2, with a curved profile on either side of the vertical centre line. The deflectors 7 have greater depth than the arms 8 which support them for vertical pivoted movement about a transverse axis XX. Separating movement in 4 vertical directions of the deflectors about the axis XX enables the exhaust gases to eject rearwardly and assist in forward propulsion of the aircraft.
Patent GB-1525941-A (GB)
Title: Cathodes for organic-electrolyte electric cell
IPC: H01M2/26
Filed: 1975-09-08
Abstract: 1525941 Current collectors for organic electrolyte cells P R MALLORY & CO Inc 8 Sept 1975 [6 Sept 1974] 36910/75 Heading H1B A current collector for an organic electrolyte cell is made from Ta, Ti, Mo, Zr, Nb, V, Cr or W. Electrolytes and cathode and anode materials are specified.
Patent GB-1317759-A (GB)
Title: Power cables
IPC: H01B9/02
Filed: 1970-07-30
Abstract: 1317759 Electric cables KABELWERK RHEYDT AG 30 July 1970 [20 Aug 1969] 36996/70 Heading H1A An electric power cable has a neutral conductor 1 surrounding its core and a plastics sheath 5, longitudinal sections of the neutral conductor being insulated individually and/or collectively by a plastics material or covered by a corrosion protective substance 4. In regions devoid of such insulation or covering the wires comprizing the neutral conductor are electrically connected to each other, either by a coil of wire or by a grooved metallic sleeve 3, the wires of the neutral conductor being embedded in the grooves. The connecting regions are located in positions 2 in which the direction of the lay of the wires is reversed. The distance between the connecting regions is at least twice the distance between the positions at which the direction of lay is reversed.
Patent GB-627616-A (GB)
Title: Improvements relating to toys
IPC: A63H7/00
Filed: 1946-12-17
Abstract: 627,616. Toys. LINES BROS., Ltd., and LINES, W. Dec. 17, 1946, No. 37144. [Class 132 (iii)] In a toy comprising a figure mounted on a support 3 and made up of blocks 1 strung together on cords 2, the lower ends of the cords are anchored to lugs 5, Fig. 2, of a cup-shaped base 4, the base fitting telescopically in support 3 and being spaced therefrom by a rubber ball 6 which normally serves to hold the cords under tension. By applying manual pressure to the base 4 the cords are relaxed and the figure assumes various postures. On release of pressure the base is returned to its initial position By the resiliency of the ball 6. In a modification, Fig. 4, the rubber ball is replaced by a rubber open-ended cylinder 7 with its lower end in airtight contact with the base 4. Alternatively, both the ball and base may be replaced by a rubber cylinder 8, Fig. 5, the open upper end of which makes airtight contact with the support 3 and the lower end of which forms a diaphragm 11 to which the cords 2 are attached. In a further modification, Fig. 6, the cords 2 are attached to a rubber diaphragm 11 which is stretched across the open end of support 3 and held by an annular clip 12. Specification 580,314 is referred to.
Patent GB-824788-A (GB)
Title: Improvements in and relating to the automatic control of feeding movements
Inventor: PROWSE DONALD WINDSOR
IPC: G05D7/06
Filed: 1956-12-05
Abstract: 824,788. Automatic weight control systems. BRITISH THOMSON-HOUSTON CO. Ltd. Nov. 13, 1957 [Dec. 5, 1956], No. 37193/56. Class 38 (4). The speed of motor 1 driving turntable 2, which feeds material to vat 20 via conveyer 5, is varied to maintain a constant weight per unit area on the conveyer. Weighing means 8 deflects the movable core of a variable inductor 10 in circuit with a control field 12 of amplidyne 14. When the conveyer delivery is correct the winding 12 is balanced by the biasing winding 13 and there is no amplidyne output, but when the delivery varies the difference field energizes the amplidyne and motor 15 is operated to vary the field control 16 for motor 1. The variable inductor may comprise a transformer with a movable core. Specification 822,743 is referred to.
Patent GB-1262448-A (GB)
Title: Process for the production of polyvinylidene fluoride
IPC: C08F14/22
Filed: 1970-08-03
Abstract: 1,262,448. Polyvinylidene fluoride. SUDDEUTSCHE KALKSTICKSTOFF - WERKE A.G. 3 Aug., 1970 [5 Aug., 1969], No. 37347/70. Heading C3P.  Polyvinylidene fluoride is produced by the polymerization of vinylidene fluoride in an aqueous medium, in the presence of a persulphate as initiator, under a pressure above atmospheric pressure and at a temperature above ambient temperature, the polymerization being carried out in the acidic pH range at a persulphate concentration of less than 0À5 g./litre liquid phase in the reactor. In the examples vinylidene fluoride is polymerized in the presence of water, ammonium persulphate, hydrochloric acid, potassium persulphate, sulphuric acid, boric acid and ammonia and the polymer dispersion is coagulated with sodium chloride solution.
Patent GB-1116644-A (GB)
Title: Tobacco products
IPC: A24D3/16
Filed: 1965-09-02
Abstract: A tobacco product contains smoking tobacco and at least one alkali metal salt of a weak acid, i.e. those which are basic in aqueous solution, the tobacco salt being disposed so that when the tobacco is ignited and smoked the tobacco smoke contacts the salt. The salt may be a carbonate, bicarbonate, thiosulphate, phosphate, bisulphite, citrate, acetate, or tartrate.  Preferably the salt is a carbonate, bicarbonate or bisulphite of sodium, potassium or lithium.  The salt is preferably present in an amount of 0.1-5% by weight of the tobacco.  The particle size of the salt may be 5-400, and preferably 20-50 mesh.  The salt may be contained in the tobacco of a cigarette, the cigarette containing 4-750 mg. and preferably 10-85 mg. of the salt.
Patent GB-626902-A (GB)
Title: Improvements in or relating to lawn mowers
IPC: A01D43/063
Filed: 1948-01-21
Abstract: 626,902. Lawn-mowers. WATSON, J. Jan. 21, 1948. No. 37608/46. [Class 6(ii)] A lawn-mower comprises a cutter consisting of a closed drum 1 having radial blades 2 which co-operate with a ledger blade 4, a casing 3 almost completely enclosing the drum, a grass box 5 wholly located between the front and rear wheels of the mower and a duct 6 connecting the casing with the grass box, said duct being substantially tangential to the drum periphery. Rollers, one of which 8 is adjustable for height, and an adjustable handle are provided. The cut grass is propelled by a suction effect to the box. U.S.A. Specification 1,899,181 is referred to.
Patent GB-923312-A (GB)
Title: Improvements in and relating to chain or cable tension devices
IPC: E21C29/14
Filed: 1960-11-02
Abstract: 923,312. Wire strainers. HOPE HYDRAULICS Ltd., and J. W. G. CAMBELL. Nov. 14, 1961 [Nov. 2, 1960], No. 37689/60. Class 45. [Also in Group XXX] A cable or chain tensioning device for use in a mine haulage system comprises a hydraulic piston 16, Fig. 2, connected to one end of the cable 24 through a connecting rod 23 and supplied with hydraulic fluid through an adjustably spring loaded pressure control valve 33 which maintains a minimum predetermined pressure on the piston 16. Pressure fluid is supplied to the valve 33 at connection 40 and annulus 41 and passes through a controllable outlet 44, to a hollow pin 27 extending into a hollow piston rod 15 having apertures 20 through which the fluid passes to the cylinder 10. The pressure fluid also passes to the inner end of the valve 33 and acts in opposition to the adjustably loaded spring 37 so that the outlets 44 are closed when the required predetermined pressure is reached. The device is arranged to tension the ends of cables or chains used for haulage of coal cutting machines in which a winch drum on the machine drivingly engages the cable to haul the machine along the length of the cable. The maximum pressure reached in the cylinder 10 during hauling is limited by an adjustable relief valve 48 (not shown).
Patent GB-1075850-A (GB)
Title: Improvements in and relating to printing machines
IPC: B41F23/00
Filed: 1965-09-03
Abstract: 1,075,850. Printing-machines. P. T. NOACK. Sept. 3. 1965 [Sept. 9, 1964], No. 37846/65. Heading B6C. Highly absorbent paper sheets 14 are fed from a stack by a feed roller 13 against a stop 15, and, when the stop is lowered, to take-up rollers 18 and between a stencil printing drum 19 and impression roller 20, and while a sheet is slightly buckled against the stop, heated air is blown on to it by a nozzle 11 inclined 15 degrees rearwardly of vertical, or a pair of such nozzles also directed inwardly, to remove loose sheets or particles of paper adhering to the sheet. The warm air also improves drying of the ink after printing.
Patent GB-1271945-A (GB)
Title: Thiodialkanoic acid esters
Inventor: SHARMA VIJAY RATNA
IPC: C08F/
Filed: 1968-08-08
Abstract: 1,271,945. Thiodialkanoic acid esters. IMPERIAL CHEMICAL INDUSTRIES Ltd. 28 July, 1969 [8 Aug., 1968], No. 37953/68. Heading C2C. [Also in Division C3] Novel mixtures of at least three esters of formula R . O . CO . (CH 2 ) n -S-(CH 2 ) n CO.OR<SP>1</SP>, where R and R<SP>1</SP> are C 12 -C 15  straight chain primary alkyl groups and n is 2 or 3, are prepared by esterification of the thiodialkanoic acid with a mixture of at least two of the C 12 -C 15  alkanols in presence of an esterification catalyst or by treatment of a mixture of the said alkanols on the acid nitrile with a solvent containing HCl and used as additives for polymers.
Patent GB-1099306-A (GB)
Title: Hydropneumatic suspension devices
IPC: F16F9/06
Filed: 1966-08-25
Abstract: 1,099,306. Hydro-pneumatic suspension unit. GENERAL MOTORS CORPORATION. Aug. 25, 1966 [Oct. 4, 1965], No. 38121/66. Heading F2S. In a hydro-pneumatic suspension unit, which comprises a hollow piston-rod 32 having a piston 22 which works in a cylinder 16 to form an upper gas-filled chamber 38 and an annular liquid-filled second chamber 42 around the rod 32 upper and lower liquid and gas-filled chambers 46, 48 respectively being formed within the rod by a floating separating-piston 44, a valve system is located between the annular chamber 42 and the upper piston-rod chamber 46 which valve system provides a larger cross-sectional liquid flow area between the chambers 42, 46 during a contraction stroke than during an extension stroke of the unit. During a contraction stroke of the piston 22 the gas in the chamber 38 is compressed and the pressure in the gas-filled accumulator chamber 48 urges the liquid in the chamber 46 through two parallel paths to a port 50 in the rod 32 and into the annular chamber 42 which is expanding one of the paths comprising a restricted annular orifice between a cup-shaped valve housing 58 bolted to the underside of the piston 22, and the piston-rod wall 62. The other path is through a number of orifices 56 in the base of the housing 58, past a spring-loaded valve 54 and through a radial passage 59 in the side of the housing. During an expansion stroke, which takes place at reduced speed, liquid flow from the annular chamber 42 to the chamber 46 can only take place through the path comprising the restricted annular orifice, the valve 54 being urged closed and the gas chambers 38, 48 expanding and contracting respectively.
Patent GB-1282045-A (GB)
Title: Improvements in and relating to cartons
Inventor: ROBERTS JOHN ANTHONY DAVID
IPC: B65D83/08
Filed: 1969-07-31
Abstract: 1282045 Dispensing cartons BPB INDUSTRIES Ltd 28 July 1970 [31 July 1969] 38499/69 Heading B8P [Also in Division A4] A carton for packaging and dispensing a roll of sheet material is erected from a blank comprising front, rear and base panels 1, 3 and 2 respectively, having extensions 1a, 2a, 3a which are secured together to form end walls, and panels 4 and 5 whose extension 4a, 5a are secured together forming a flanged lid overlying the upper part of the carton. The lid is releasably locked in the closed position by engagement of tongues 7 on the extension 2a with slots 6 formed in the lid flange. The free end of the flange 5 is provided with a serrated edge 8 to facilitate dispensing of the roll of sheet material.
Patent GB-339504-A (GB)
Title: Improvements relating to the preparation of magnesium by electrolysis
IPC: C25C3/04
Filed: 1929-12-16
Abstract: 339,504. Arnold, C., (Dow Chemical Co.). Dec. 16, 1929. Magnesium and chloride, obtaining.-In the preparation of magnesium by electrolysis of fused magnesium chloride, the by-product chlorine is converted to hydrochloric acid, the latter reacted with a magnesium limestone such as dolomite to obtain a mixed solution of magnesium and calcium chlorides, and the magnesium chloride separated, dehydrated, and returned to the cycle. The chlorine may be reacted with sulphur dioxide and water to obtain a mixture of hydrochloric and sulphuric 'acids and the calcium chloride obtained from the dolomite &c. used to convert the mixed acids wholly to hydrochloric acid. A part of the latter may be reacted with dolomite, the solution obtained being treated with calcined dolomite to obtain a solution of calcium chloride and a precipitate of magnesium hydroxide, and the latter be reacted with the remaining hydrochloric acid to form magnesium chloride. Alternatively the whole of the hydrochloric acid may be reacted with dolomite and crystals of the double salt CaCl2 2MgCl2 12H2O be obtained from the solution, the crystals being then leached with water to extract the calcium chloride only from the double salt.
Patent GB-1201693-A (GB)
Title: Apparatus for calibrating pipes
IPC: B21C37/30
Filed: 1968-08-13
Abstract: 1,201,693. Tube expanding; stamping. KOCKS WERMELSKIRCHEN G.m.b.H., [trading as FRIEDRICH KOCKS]. 13 Aug., 1968 [1 Sept., 1967], No. 38644/68. Headings B3J and B3Q. [Also in Division G1] Apparatus for calibrating pipes comprises a housing, a ring of die segments, a cylindrical sleeve bearing on the inner or outer faces of the segments and forming with the housing a chamber receiving fluid under pressure for moving the sleeve to expand or contract the die segments, and stops for engaging the ends of the segments to limit expansion or contraction of a pipe. In an example for expanding pipes 10, Fig. 3, e.g. to facilitate welding or to improve the physical properties of the material, leaf springs (2), Fig. 2 (not shown), are disposed between the die segments 1 which are contracted by annular springs 6. The sleeve 3 is of rubber, and shoulders on the housing's flanges 4, 5 act as stops for the segments. An outer ring-die 9 may be used, and the length of the pipe may be expanded in sections, or an adjustable stop may locate the housing. In a modification, Fig. 4 (not shown), the ends (41b) of the segments are formed as radial pistons for returning the segments by pressure fluid contained in a vessel (40). In another construction, Fig. 6, the die 51 contracts the pipe 10, preferably on to a mandrel 60 and against the bias of springs 66. Leafsprings are located between the segments. This construction may be adapted, Fig. 7 (not shown), for return of the dies by pressure fluid. The pipe expander, Fig. 8, is adapted also for pressure testing. An end-plate 82 seals the housing, the inner end of which is also sealed by packing 85c expanded by the testing fluid in the pipe. Pipes may be fed to the expander or contractor on roller tables, Figs. 9 and 10 (not shown), or the tool may be fed, Fig. 11 (not shown), over or into a stationary pipe. A travelling tool may engage each end of the pipe, Fig. 12 (not shown), which is supported resiliently. Travelling expanders may also be adapted for testing.
Patent GB-1153074-A (GB)
Title: Air Driven Dental Hand Piece
Inventor: KRZYSZCZUK EDWARD
IPC: A61C1/18
Filed: 1966-08-31
Abstract: 1,153,074. Dental handpieces. AMERICAN HOSPITAL SUPPLY CORP. 31 Aug., 1966, No. 38795/66. Heading A5R. [Also in Division F2] An air-driven dental handpiece comprises an air turbine, two-speed epicyclic transmission means, speed-reducing transmission means operative between the turbine and the twospeed epicyclic transmission means, and a speed-selection control means including a manually operable frictional clutch which selects which of the two speeds is operative. As shown, the dental turbine handpiece is arranged so that the drive to the burr may be reversed and also adjusted for speed and comprises a turbine rotor having a first set of blades 33 facing in one direction and a second set of blades 34 facing in the opposite direction, the rotor being coupled through planetary gear rings (44) (Figure 3, not shown) and bearings 47 to a pulley 45 and thence to a second set of planetary gear rings (72) (Figure 4, not shown) having a clutch mechanism which provides a variable drive to the chuck shaft 82. Air is supplied to the turbine rotor via a conduit 14 and is directed to either set of turbine blades through conduits 16 or 17 by moving a valve member (20) (Figure 7, not shown). The clutch mechanism and speed control is actuated by rotating a knurled ring 61 which, through a spigot 60 (see also Figure 6, not shown), moves a shaped annular member 56 from stationary clamped engagement with the handpiece housing 50 through an intermediate partially slipping condition until it is in rotating clamped engagement with an inner wedge shaped member 53. The member 53. is provided with bearings 67 and is rotated by the pulley 45 via planetary rings (72) (Figure 4, not shown) engaging in the space 69 between the pulley 45, the annular member 56 and the bearings 67, the rings (72) driving .the member 53 at a speed dependent on the freedom to rotate of the member 56. The member 53 is connected to a shaft 48 driving the chuck of the handpiece. The handpiece also includes a knob 81 used to actuate a central shaft 80 which adjusts the chuck, a button 84 which can lock the shaft 48 to facilitate adjusting the chuck, and an air exhaust conduit 15.
Patent GB-1532005-A (GB)
Title: Leaf and loose-leaf binder combination
IPC: B42F11/00
Filed: 1975-09-22
Abstract: 1532005 Loose leaves WALTER PHILLIPS (PERIVALE) Ltd 22 Sept 1975 38798/75 Addition to 1249226 Heading B6E A leaf in a loose leaf binder as described in the Parent Specification comprises a sheet 1 of cardboard which is attached to a binding rod 2 consisting of folded strip of metal, the parallel flanges 21, 22, 23 of which form a channel to grip the sheet 1 along an edge portion thereof. The rod 2 is provided with two narrow tongues 3 projecting beyond the two opposite side-edges of the sheet 1 and which may be received in channels of receptacles at the ends of the spine of the binder.
Patent GB-1424966-A (GB)
Title: Powder coating compositions
IPC: C09D5/03
Filed: 1974-09-05
Abstract: 1424966 Powder coating composition FORD MOTOR CO Ltd 5 Sept 1974 [6 Sept 1973] 38872/74 Heading C3B A powder coating composition comprises a mixture of: (I) a copolymer of (by wt.) 5-20% of a glycidyl ester of a monoethylenically unsaturated acid, 0-10% of a C 5-7  hydroxyalkyl (meth)acrylate or (meth)acrylamide and 70- 95% of other monomer(s) which has a glass transition temperature of 40-90‹ C. and M.W. 1500-15,000; (II) a C 4-20  saturated straight chain aliphatic acid to provide 0À1-0À6 COOH groups per functional group (i.e. epoxy and hydroxy and/or amide group) of I; and (III) a polyanhydride (M.W. 1000-5000) to provide 0À2-1À1 anhydride groups for each functional group of I. II may be adipic, bimelic, suberic, azelaic, sebacic, undecanoic or brassylic acid. II may be poly(adipic-, azelaic- or sebacic-) anhydride. Conventional flow control agents, catalysts, pigments and antistatic agents may be present.
Patent GB-863988-A (GB)
Title: Improvements in and relating to drawing boards and stands
Inventor: SHOEBOTHAM GEORGE WILLIAM
IPC: A47B27/00
Filed: 1957-12-13
Abstract: 863,988. Drawing board stands. MASON & SONS Ltd., E. N. Dec. 15, 1958 [Dec. 13, 1957; June 12, 1958], Nos. 38921/57 and 18812/58. Class 52(3). A drawing board 10 can be raised or lowered with respect to a supporting frame 5 by an electric motor 6<SP>b</SP> on the frame. The motor may operate rack and pinion gearing 16, 17 through a reduction gear 6<SP>c</SP> or can rotate a nut, by a chain or worm drive, through which a screwed rod secured to the back of the drawing board is moved. The frame 5 has side cheeks 3 pivoted at 4 on supporting brackets to enable the board to be angularly adjusted a clamping bolt 11 being provided. Spirally coiled spring strips 21 may be provided between the board and frame to assist the raising movement.
Patent GB-1314120-A (GB)
Title: Process for the production of anthraquinone-alpha-sulphonic acid
IPC: C09B1/00
Filed: 1971-08-20
Abstract: 1314120 Anthraquinone-α-sulphonic acid BAYER AG 20 Aug 1971 [21 Aug 1970] 39195/71 Heading C2C Anthraquinone-α-sulphonic acid is prepared by reacting anthraquinone with a sulphonating agent in the presence of a solvent and a catalyst comprising a metal of Group Ib or VIII of the Periodic Table or a compound containing such a metal. The sulphonating agent, e.g. SO 3 , may also act as the solvent. Preferred catalysts are palladium and ruthenium and compounds containing these metals. The preferred reaction temperature is 50 to 180 C.
Patent GB-1149555-A (GB)
Title: A method for outer covering and steamtight sealing the insulation of insulated heat conducting lines and a casing for accomplishing said method
Inventor: MEIER-SCHENK ARTHUR
IPC: F16L59/02
Filed: 1966-09-02
Abstract: 1,149,555. Heat-insulated pipes. A. MEIERSCHENK. 2 Sept., 1966 [2 Sept., 1965], No. 39255/66. Heading F2P. A sheet 1 of metal or plastics material forming the casing for the heat-insulation 7, 8 of a pipe 6 is provided along one longitudinal edge thereof with a tape 3 adhesive on both sides and the non-adhering side having a cover strip 4. The sheet is wrapped around the insulation so that the tape and covering strip are overlapped and the strip is then removed through the gap 10 between the overlying portions of the sheet so that those portions may be bonded together. The sheet may be preformed and be temporarily secured by string 9. The bonded joint may be protected by a covering strip.