baber/WOPTO huggingface dataset:
Patent GB-1172619-A (GB)
Title: Polypivalolactone fibres of high resistance to stretch.
IPC: D01F6/62
Filed: 1967-12-04
Abstract: 1,172,619. Polypivalolactone fibres of high stretch resistance. E. I. DU PONT DE NEMOURS & CO. 4 Dec., 1967 [5 Dec., 1966], No. 55095/67. Heading B5B. Fibres consisting of a polymer at least 70 mol. per cent of whose repeating units have the formula which fibres have an inherent viscosity of at least 0À75 as determined at a concentration of 0-5 gm. of polymer per 100 ml. of solution in trifluoroacetic acid at 30 C., an orientation angle not exceeding 17 degrees, an alpha ratio of less than 1-5, an alpha crystallite size transverse to the fibre axis of less than 125  and a radial breadth of at most 0-40 may be produced by subjecting oriented filaments of the polymer (the filaments having an inherent viscosity of at least 0-75 determined as above) to the following series of treatments: (a) heatsetting the filaments at a temperature of at least 135 for at least 3 seconds; (b) drawing the filaments at a draw ratio of at least 1-5 at a temperature of 120-190 C.; and (c) heating the filaments at a temperature of 160-200 C. If the polymer of which the filaments consist is a copolymer of pivalolactone and 2,2-diethylpropiolactone containing at least 10 mol. per cent of repeating units derived from the latter monomer, step (a) may be omitted. The filaments may consist of a copolymer of pivalolactone and 2-methyl-2-chloromethyl-propiolactone or pivalolactone and 2,2-di-n-propylpropiolactone. The expressions "orientation angle," " α crystallite size " and " radial breadth " are defined. Polypivalolactorie fibres produced according to Specification 766,347 are stated to require a load of only 1 gpd. or less to stretch them 7% after they have been boiled for half an hour in water under no tension and dried. The fibres of the present invention are stated to require a load of 1-5 to 4 gpd. and higher after the above treatment. The fibres of the invention may consist solely of the polymer specified or may consist of a copolymer of the polymer with another polymer consisting of different repeat units, the proportion of the other polymer being up to 30 mol. per cent of the copolymer.
Patent GB-1115792-A (GB)
Title: Improvements in or relating to ventilators
Inventor: LAMBIE HOWARD RUSSELL
IPC: F04D29/54
Filed: 1964-06-22
Abstract: 1,115,792. Ventilators. COLT VENTILATION & HEATING Ltd. 18 June, 1965 [22 June, 1964], No. 55153/66. Divided out of 1,115,791. Heading F4V. The subject-matter of this Specification is substantially the same as that described in Specifications 1,115,791 and 1,115,793 but the claims differ.
Patent GB-1368989-A (GB)
Title: 3,-deoxykanamycin a and a process for the production thereof
IPC: C07H15/236
Filed: 1971-11-29
Abstract: 1368989 3<SP>1</SP>-Deoxykanamycin A ZAIDAN HOJIN BISEIBUTSU KAGAKU KENKYU KAI 29 Nov 1971 [3 Feb 1971] 55335/71 Heading C2A The novel antibiotic 3<SP>1</SP>-deoxykanamycin A having the formula and acid-addition salts thereof, are prepared by condensing in a solvent a 3-deoxy-sugar derivative of formula wherein R is benzyl, X is a halogen atom and Y is an azido group, with a protected 6ÀO-(3- amino - 3 - deoxy - α - D - glucopyranosyl) - 2- deoxy-streptamine having the formula wherein W is a benzyl group, P is a C 2-6  alkylidene group, and Z is a C 1-4  alkoxy group, to produce a condensation product of formula in which R, Y, P, W and Z have the aforesaid meanings and then catalytically hydrogenating the azido group Y into an amino group -NH 2  and removing the hydroxyl- and aminoprotecting groups to give 3<SP>1</SP>-deoxykanamycin A.
Patent GB-1171938-A (GB)
Title: Improvements to Antenna Systems Comprising Electronically Scanned Arrays.
IPC: G01S7/03
Filed: 1966-12-09
Abstract: 1,171,938. Aerials. THOMSON CSF. 9 Dec., 1966 [13 Dec., 1965], No. 55353/66. Heading H4A. In an antenna radiation lobe scanning system for monopulse radar, the antenna is formed of an array of elementary antennµ, or radiating sources, Sm, each of which has a phase adjuster, 1.m, in the associated feeder. The signal representing the required beam axis angle is applied at 30 to the phase computer, 30, which derives the theoretical value of the phase shift for each phase adjuster. The outputs from 30 are applied to the computer, 4, which derives quantized phase shift values, which approximate to the theoretical values, in accordance with a predetermined rounding-off law. The quantization phase errors, derived at 4, are applied to the computer, 5, together with the required angle signal, from 30, the beam angle error is provided at the output 52 but applied to the adder 7. The output from 7 is the effective beam angle and is applied to the data processor, 8, also fed from the receiver, 2.
Patent GB-553916-A (GB)
Abstract: 553,916. Controlling aircraft guns. BOULTON PAUL AIRCRAFT, Ltd., and CLARKE, W. H. V. Dec. 10, 1941, No. 15898. [Class 92 (i)] A gun mounted on aircraft and pointed to fire at a ground target during horizontal flight is de. pressed automatically by motor-operated means tc keep the gun directed or the target. For this purpose the speed of the motor is regulated by means pre-set in accord. ance with the height anc speed of the aircraft. As shown, the feed to an hydraulic motor through the passages 1, 2 is controlled by needle valves 9, 10 set in accordance with height and speed respectively. A third needle valve 15 is set in accordance with the ground range or the initial angle of depression of the gun when firing starts.
Patent GB-1492780-A (GB)
Title: Composition and process for drying water-wet surfaces
IPC: C09K3/00
Filed: 1974-12-23
Abstract: The process consists in treating the surfaces with a composition comprising (1) 1,1,2-trichloro-1,2,2-trifluoroethane, (2) 0.01 to 10% by weight based on the weight of 1,1,2-trichloro-1,2,2- trifluoroethane, of a soluble phosphate salt of (i) a monoalkyl phosphate or dialkyl phosphate or a mixture of these, where each alkyl group has 6 to 20 carbon atoms, and (ii) a saturated aliphatic amine having 6 to 20 carbon atoms and 1 to 3 alkyl groups bonded to an amine nitrogen atom in an amount which suffices to at least neutralise the phosphate, and (3) 0.025 to 1% by weight based on the weight of 1,1,2-trichloro-1,2,2-trifluoroethane, of a partially oleated N,N,N',N'-tetrakis(2-hydroxypropyl)ethylenediamine having, on average, two oleate groups which is quaternised with 0.7 to 1.7 mol (per mole of ethylenediamine) of dimethyl sulphate. The process avoids the retention and/or formation of water droplets and residue specks on the dried surfaces.
Patent GB-1315259-A (GB)
Title: Process for producing a dry semi-permeable cellulose acetate membrane
Inventor: KAISER W
IPC: C08B/
Filed: 1971-11-30
Abstract: 1315259 Semipermeable cellulose acetate membranes KALLE AG 30 Nov 1971 [1 Dec 1970] 55523/71 Heading B5B Dry cellulose acetate membranes consisting of an active separating layer and a porous supporting layer are made by treating a membrane, still wet from its preparation by evaporation and precipitation, with an aqueous solution containing an organic carboxylic acid and a polyhydric alcohol and then drying at a temperature between the ambient and 100 C. The acid contains 1 to 3 carbon atoms in the molecule and is present in solution in a concentration of from 2 to 20% by weight, whilst the alcohol has 2 or 3 carbon atoms and is present to an extent of from 20 to 40% by weight. The preferred acid is acetic acid and glycerol is preferred as the polyhydric alcohol. The membrane may have a reinforcing fibrous support. The preferred cellulose acetate contains from 37À5 to 41% by weight of acetyl groups.
Patent GB-1332417-A (GB)
Title: Catalytic hydrogenation process and catalyst therefor
IPC: B01J23/85
Filed: 1971-12-07
Abstract: 1332417 Hydrocarbon treatment catalysts NIPPON OIL CO Ltd 7 Dec 1971 [7 Dec 1970] 56881/71 Heading B1E [Also in Division C5] Catalyst for use in the hydrogenation of petroleum hydrocarbon distillation residues comprises a catalytically-active metal hydrogenation catalyst component supported on carrier material selected from alumina gel obtained from a basic aluminium sulphate hydrosol and silica-alumina gel obtained from a basic mixture of a basic aluminium sulphate hydrosol and a silica hydrosol, the gel having a BET surface area of from 250 to 450 m<SP>2</SP>/g, a pore volume of from 0.5 to 1.5 cm<SP>3</SP>/g and a mean pore radius of from 40 to 100 Angstroms, more than 15 per cent of the pore volume being constituted by pores having radii within a 10 Angstrom range within the mean pore radius range. The metal hydrogenation catalyst component may constitute from 5 to 20 weight per cent of the catalyst and may be selected from the metals of Groups VI and VIII; exemplified metals are molybdenum, tungsten, cobalt and nickel. The Specification gives full details relating to the preparation of the gel which may be in the form of spheres obtained by a procedure wherein the hydrosol or mixture of hydrosols is either passed into a waterimmiscible liquid medium heated at a temperature of from 40 to 100C or spray-dried. The metal hydrogenation catalyst component may be composited with the gel by impregnation from solution, the resulting composite being dried and thereafter calcined at a temperature preferably of at least 350C, for example from 350 to 600C. Prior to use, the catalyst may be sulphided. As exemplified, catalyst containing molybdenum and cobalt supported on alumina is prepared by a procedure involving either "oil-dropping", extruding and sulphiding (Example 1) or "oil-dropping" and sulphiding (Example 2) and catalyst containing molybdenum, cobalt and nickel supported on silica-alumina is prepared by a procedure involving either "oil-dropping" (Example 3) or spray-drying and extruding (Example 4); comparative examples are given.
Patent GB-1391370-A (GB)
Title: Safety razors
IPC: B26B21/26
Filed: 1972-12-12
Abstract: 1391370 Safety razors GILLETTE INDUSTRIES Ltd 5 Dec 1973 [12 Dec 1972] 57249/72 Heading B4B A safety razor blade magazine comprises two elongated blade strips 3, 4 each wound to form a respective storage coil from which coils 5, 6 they are fed by a take-up means 9 along respective paths, the path defining means 12, 16, 17 being disposed such that the cutting edges are in staggered relationship thereby ensuring that both blades can engage the skin and will follow one another in tandem relationship during the shaving operation. The blade 4 is arranged to pass between a backing surface 12 formed on the magazine body and a plate 16 of aluminium or plastics material. The blade 3 passes between the plate 11 and a support plate 17 of the same material. The plate 16 is provided with curved end portions to guide the blade 3, Fig. 2 (not shown). An indicator (10) Fig. 1 (not shown) indicates the number of usable lengths of blade remaining. The magazine may be connected to a handle, e.g. as described in Specification 1,225,060. The storage coils 5, 6 may be arranged in poitions different from that shown in Fig. 4.
Patent GB-1273212-A (GB)
Title: Method of treating cellulosic material
Inventor: TATTERSALL ROGER
IPC: D06M15/423
Filed: 1969-05-17
Abstract: 1,273,212. Treating cellulosic material. ENGLISH CALICO Ltd. 17 Aug., 1970 [17 May, 1969; 25 Nov., 1969], Nos. 25247/69 and 57556/69. Heading D1P. A method of impregnating textile fabric containing at least 50% of regenerated cellulosic fibres with an aqueous mixture capable of forming a urea-formaldehyde resin in presence of acid, together with a catalyst which is an ammonium salt of an acid having a pk<3, drying the fabric so that it contains 4 to 25% by weight of moisture calculated on the dry weight of the fabric, allowing the fabric to stand in ambient temperature for example from 48 to 96 hours and under such conditions that it retains moisture between the limits of 4 to 25% by weight for a sufficient time for resin formation to take place, and then drying the fabric. The preferred catalyst is ammonium thiocyanate and preferably the fabric contains 10 to 25% by weight of moisture. The fabric may be pleated or, creased or a garment made from it whilst it is in the moist state and before resin formation takes place, and then the fabric is washed to remove catalyst residues after resin formation has taken place but before drying. Alternatively the catalyst residues are not removed and the fabric is pleated or creased after resin formation has taken place. The impregnated textile fabric may be 100% viscous rayon or fabric containing at least 50% viscous rayon, the remainder being synthetic, substantially non-water-absorbent fibre.
Patent GB-1240018-A (GB)
Title: Chart-type recorders
IPC: G01D9/40
Filed: 1969-11-25
Abstract: 1,240,018. 018. Recording-apparatus MECHANICS FOR ELECTRONICS Inc. Nov.25, 1969, No.57709/69. Heading G1J. Recording-apparatus comprises a lead screw 40 with a plurality of parallel threads 60, 62 ..... of the same pitch engaged by a correspondingly threaded element 42, 44 to produce a trace 52 on paper 10 carried by a roll 12 to indicate variations in a parameter when the screw 40 is rotated in response to an input signal Y representing the parameter and the paper is advanced over the roll 12. The paper 10 may be advanced by rotating the roll 12 in response to an input signal X representing another parameter and both the roll 12 and screw 40 may be under servocontrol in systems including servomotors and feedback potentiometers 32, 54. The multi-threaded arrangement provides a high transmission ratio with minimum backlash, small changes of the input Y producing large movements of the tracing element 44.
Patent GB-1356044-A (GB)
Title: Apparatus for grading and counting coins
IPC: G07D9/00
Filed: 1971-12-13
Abstract: 1356044 Endless belt conveyers K M REIS 13 Dec 1971 [12 Dec 1970] 57727/71 Heading B8A [Also in Division G4] In a coin sorting machine coins are fed from a storage container 2 by a conveyer belt 5 to a grading'belt 21, which has its conveying surface in a vertical plane and means for retaining coins thereon, this belt conveying the 'coins past a series of elements 23 which sort the coins according to their diameter. In the embodiment described the belt 5 (see also Figs. 2 and 3, not shown) is fitted with rows of coin engaging pins, and has upwardly and downwardly inclined portions and a stripper plate (13) for ensuring that a single layer of coins is fed into a gap (14) between a face plate (15) of the machine and a cover-plate 16, the coins being guided by a sloping rail 17 on to the grading belt 21. A rotary agitator 20 is provided to obviate jamming of the coins in the gap (14). The retaining means on the belt 21 may, as shown, be in the form of V-shaped cut-outs 27 or retaining pins (33) (Fig. 5, not shown). The rear surface of the belt is provided with teeth 28 for engagement with a driving roller 31.
Patent GB-1286646-A (GB)
Title: Well fracturing method using an explosive slurry
Inventor: FLETCHER DAVID ADAMS
IPC: E21B43/263
Filed: 1969-11-26
Abstract: 1286646 Explosive compositions TALLEY INDUSTRIES Inc 26 Nov 1969 57825/69 Heading C1D [Also in Division E1] A method of fracturing a formation adjacent a well bore comprises injecting through a tube extending from the surface through the well bore to a level adjacent the formation a slurry consisting of a fluid dispersive medium capable of desensitizing a granular explosive dispersed therein, one or more granular solid explosives which are organic nitro compounds for example- RDX, HMX, PETN or TNT-of high explosive power and which are essentially non-hygroscopic and insoluble in the dispersive medium, evenly dispersed throughout the dispersive medium, and a gelling agent for maintaining the granular solid explosive evenly dispersed throughout the dispersive medium under conditions of pressure and temperature existing in well fracturing, placing a detonating device containing a high explosive charge within the slurry in the well bore, and detonating the high explosive charge to explode the slurry, thereby fracturing said formation. The dispersive medium may be water, hexane, kerosene, or alcohol, and the gelling agent a carboxy vinyl polymer, a fatty acid or protein colloid gelling agent, aluminium silicate, or a metallo-organic compound. Finely powdered metals may be added to a non-aqueous slurry.
Patent GB-1285890-A (GB)
Title: Improvements in or relating to radar systems
Inventor: HEWLETT MICHAEL GILBERT TANNER
IPC: H01J17/04
Filed: 1968-12-06
Abstract: 1285890 Pulse radar; frequency modulation PLESSEY CO Ltd 24 Nov 1969 [6 Dec 1968] 57982/68 Headings H4D and H3R [Also in Divisions H1] A system comprises a transmission line means connected to the output of an oscillator and means for accelerating an effective short circuit along the line towards the oscillator to produce a Doppler shift in the wave reflected from the short circuit before it is fed to an aerial. In a transmitter for a pulse compression radar, a magnetron 4 is pulsed by pulser 5 and a length of waveguide attached to the output of the magnetron is divided into two sections 1, 3, the section 1 being sealed at 9 and evacuated through part 10. Before the magnetron 4 is pulsed a mass of hydrogen is injected through a hollow electrode 6 into the waveguide 1. A pulse tapped from the pulser 5 ionizes the gas thereby short-circuiting the waveguide. A magnetic field applied transversely to the waveguide accelerates the ionized gas column towards the oscillator. The R.F. pulse from the magnetron is reflected from the short circuit and undergoes a Doppler shift due to the movement thereof. The waveguide may be replaced by a coaxial cable, wherein the gas forms an annulus which is accelerated along the line by a current along the centre conductor.
Patent GB-1378494-A (GB)
Title: Protective head gear
IPC: A42B3/12
Filed: 1971-12-08
Abstract: 1378494 Protective headgear DEFENCE SECRETARY OF STATE FOR 8 Dec 1971 [10 Dec 1970] 58698/70 Heading A3V An article of protective headgear comprises a shell 1 and a piece of flexible gas permeable fabric spaced from the shell by tie members 5 to define a space 2 of approximately constant thickness which is occupied by expanded polystyrene spheroids 6 which are displaced relative to one another to allow the inner surface 4 of the fabric to conform to a wearer's head when the headgear is donned. The fabric is permeable by gas and liquid to provide ventilation and a pipe or pipes may be used to supply air to enhance the effect. In an alternative embodiment a plurality of bags are attached to the interior of the shell, each bag containing spheroids and optionally tie members, and the portions of the bag facing the interior of the headgear are of a gas permeable fabric and form the contact surface for the wearer's head. The sides of the bags opposite those forming the contact surface may be bonded to the inside of the shell 1 and a similar construction may be used in the Fig. 1 embodiment. The headgear comprises also earcups 7 and 8 having a pocket 9 for the ear surrounded by an annular pad 10 filled with polystyrene spheroids and telecommunications equipment may also be incorporated.
Patent GB-1397252-A (GB)
Title: Golf club covers
IPC: A63B55/00
Filed: 1971-12-18
Abstract: 1397252 Golf club covers D N MEE and R I HALLAM 11 Dec 1972 [18 Dec 1971] 58945/71 Heading A6D A cover for a golf iron comprises a pouch 2 for receiving the head of the iron, a flexible tab 12 extending from one side of the pouch and capable of being folded back around the heel and shaft of the iron, and securing means for detachably attaching the free end of the tab to another part of the pocket. In the embodiment described the securing means comprises a VELCRO (Trade Mark) fastener 14, 18 and the pouch is formed from two pieces of PVC 4, 6 stitched at 8.
Patent GB-1360764-A (GB)
Title: Electrochemical cell
IPC: H01B1/06
Filed: 1972-12-27
Abstract: 1360764 Electric cells GTE LABORATORIES Inc 27 Dec 1972 [27 Dec 1971] 59714/72 Heading H1B An electrochemical cell has an active anode material consisting of an alkali metal, a Group IIIA element, or a rare earth element; a solid active cathode material consisting of a Group VIB element or a compound thereof with a metallic element; and an electrolyte comprising an inorganic solvent of formula P x O 2x-1 Cl +-2  where x = 1, 2, 3 or 4, and a solute which yields at least 10-<SP>3</SP> moles. litre<SP>-1</SP> each of anion and cation in the electrolyte. Suggested cathode materials are sulphur, selenium, cuprous oxide, cupric oxide, nickel oxide, lead dioxide, argentous oxide, argentic oxide, vanadium oxides, niobium oxides, tantalum oxide, manganese dioxide, chromium trioxide, cuprous sulphide, cupric sulphide, and nickel sulphide. These materials may be pressed into hollow-cylindrical or disc form, may be made more conductive with carbon or graphite fibres or silver particles, and may contain polyethylene, polypropylene or PTFE as binder. The anode materials lithium, sodium, potassium, the lanthanides, scandium, and yttrium may be contacted by a metal grid. For lithium anodes, grid materials may be nickel, coppernickel, stainless steel, silver, or platinum. The solvents specified are anhydrous phosphorus oxychloride (POCl 3 ) and pyrophosphoryl chloride (P 2 O 3 Cl 4 ) and mixtures of these. Suggested solutes are LiAlCl 4 ; LiBCl 4 ; LiBF 4 ; LiPF 6 ; LiAsF 6 ; LiSbF 6 ; LiSbCl 6 ; Li 2 SnCI 6 ; Li 2 ZrCl 6 ; Li 2 TiCl 6 ; LiSO 3 Cl; AlCl 3 ; BF 3 ; SnCl 4 ; SbCl 5 ; SbF 5 ; TiCl 4 ; AlBr 3 ; PF 5 ; PCl 5 ; AsF 5 ; AsCl 5 ; ZnCl 2 ; ZrCl 4 ; Lewis bases formed by the fluorides, chlorides, bromides, iodides, and oxides of Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba, and the rare earth metals; materials yielding Cl-, Br-, I-, ICl 2 _, ClO 4- , and PO 2 Cl 2 - ions or adducts of the PO 2 Cl 2 - ion with ZrCl 4 , AlCl 3 , or BCl 3 ; materials yielding R 4 N+ (where R = methyl, ethyl, propyl, iso-propyl, butyl, or iso-butyl), POCl<SP>+</SP> 2 , or cations from Li, Na, K, Cs, Rb, Mg, Ca, Sr, Ba, La, Tb, Nd, Ce, Eu, or Sm. The cell may have a mechanical separator of alumina, beryllia, magnesia, zirconia, titania, porcelain, porous glass, fritted glass, or non-woven porous PTFE polypropylene or polyethylene, or may have an ion-selective membrane separator of zeolite or perfluorinated hydrocarbon sulphonate. In the 19 specific embodiments the anode is of lithium sheet, strip, or pieces and the solvent is POCl 3 . In most embodiments an electrolyte container of stainless steel is used which acts as a collector for a hollow cylindrical cathode. The cathode surrounds a glass-seal supported nickel mesh basket on to which is passed the lithium strip or sheet or which contains the lithium pieces. In one embodiment the container acts as anode collector for lithium strip and the nickel basket as cathode collector for selenium shot contained therein. Some embodiments use a disc cathode with a strip anode.
Patent GB-1361399-A (GB)
Title: Electro-chemical machining apparatus
IPC: B23H11/00
Filed: 1972-02-09
Abstract: 1361399 Electro-machining HEALY OF LEICESTER Ltd 9 Feb 1972 [16 Dec 1970] 59816/70 Heading C7B An electro-chemical machining apparatus has a machining chamber comprising structural members, e.g. tie bars and cross-members of stainless steel or iron, titanium or bronze, encased in non-corrodible plastics material e.g. polyester reinforced with glass fibres.