baber/WOPTO huggingface dataset:
Patent GB-875069-A (GB)
Title: Manufacture of shaped articles such as filaments of aromatic polysulphonamides
Inventor: MARSDEN RALPH JOHN BASIL
IPC: D01F6/76
Filed: 1957-11-25
Abstract: In the production of filaments by extruding a solution of an aromatic polysulphonamide into an aqueous coagulating bath of acidity greater than that of the polymer solvent, the coagulating bath comprises an aqueous solution buffered to maintain a substantially constant pH, and the solvent is miscible in all proportions with the coagulating bath liquid.  The latter preferably has a pH value of not less than about 5,0 and may be made from an aqueous solution of a weak organic acid in which is dissolved a salt of the acid with a strong base such as caustic soda.  The polysulphonamides may be aromatic meta-or para-polysulphonamides prepared from meta-or para-disulphonic acids and diamines such as hexamethylene diamine.  In an example, a 25% solution of polyhexamethylenebenzene-meta-disulphonamide in an aqueous solution of 200 grams per litre of caustic soda is spun into an aqueous solution of 100 grams per litre concentration of sodium bicarbonate at 65 DEG C.  In another example, the polymer solution is spun into an aqueous solution of acetic acid and sodium acetate having a pH value of about 6,5.  Specifications 875,067, 875,068, 875,070 and 875,071 are referred to.
Patent GB-1084305-A (GB)
Title: Method of developing improved machining characteristics of steel bar stock and product produced thereby
Inventor: TUFTS MARSHALL W
IPC: C21D7/00
Filed: 1964-09-07
Abstract: 1,084,305. Improving physical properties. SCREW & BOLT CORPORATION OF AMERICA. Sept. 7, 1964 [Sept. 5, 1963], No. 36666/64. Heading B3V. [Also in Division C7] A method of improving the machining and drawing characteristics of steel comprises tensioning the steel beyond its yield point and then cold working it to final form. Bar-stock may be tensioned to produce a permanent extension of 6-20%, after which it may be cold drawn. Before being drawn the bar may be pickled, worked and limed, and after drawing it may be straightened. If the bar is furnacestress-relieved to improve the yield strength, elongation and reduction in area, a further straightening operation will be needed. For even higher physical properties, before stretching the bar is annealed, normalized or quenched, and tempered; it may also be surface-hardened in a furnace with a controlled atmosphere. A number of examples are given in which are listed the treatment given and the physical and machining properties of the material. Steels having the following composition are listed:-
Patent GB-1465335-A (GB)
Title: Electrical displacement transducer
IPC: G01D5/14
Filed: 1974-08-22
Abstract: 1465335 Measuring displacement electrically W BRADLEY 22 Aug 1974 [13 Sept 1973] 36844/74 Heading G1N A transducer providing an electrical signal varying with displacement of shaft 27 along its longitudinal axis includes magnets 14, 15 bearing respective poles 11, 12 of opposite polarity; a magnetic flux transmitting armature 26 mounted for displacement along the longitudinal axis of the shaft towards or away from the poles to increase or decrease the flux transmitted by the armature; a magnetoresistor 55 carried by the armature which latter has a range of movement s between limits, at one of which the flux transmitted through the element is a maximum and at the other of which the flux transmitted through the element falls to zero due to the flux being shunted through a shorting bar or bulkhead 38. In an alternative embodiment Fig. 7 (not shown) the armature (80) is formed by an elongate stem (81) with heads (82a, b) at opposite ends thereof, which co-operate with poles (83a, b) of a tubular magnetic member (83) arranged co-axially with the armature and with a tubular flux shorting bar (86) to cause the flux through magnetoresistor (85) to drop to zero when the head (82b) is adjacent end (86b) of the bar. Temperature compensation is provided.
Patent GB-875151-A (GB)
Title: Improvements in antiozonants for rubber
IPC: C08K5/24
Filed: 1959-10-30
Abstract: Natural and synthetic rubber, e.g. copolymers of butadiene with styrene, acrylonitrile or vinyl-pyridine is rendered resistant to ozone cracking by compounding the rubber stock with from 0,1-5 parts by weight, per 100 parts of the rubber, of a substituted hydrazine of formula: <FORM:0875151/IV (a)/1> where R1 and R2 are any of saturated straight chain and branched chain alkyl radicals, unsaturated straight chain alkyl radicals, saturated cycloalkyl radicals, and aralkyl radicals, which radicals contain 1-18 carbon atoms, where also the total number of aralkyl radicals is less than 3, and where R3 and R4 are any of the above stated radicals or are hydrogen atoms. The R1 and R2 substituents may together be a tetra-methylene, pentamethylene or oxydiethylene radical.  Specified hydrazines include tetra-methylene hydrazine, 1-cyclohexyl-1-methylhy-drazine, 1-cyclohexyl-2, 2-dimethyl hydrazine, 1, 1-dimethyl-2-n-octadecylhydrazine and 1, 1-dimethyl-2-n-octyl hydrazine which hydrazines may be prepared by the method disclosed in Specification 875,152.  As an alternative the antiozonants may be coated in liquid form or in solution on to the vulcanized rubber articles.ALSO:The invention comprises as new chemical compounds:- 1 - cyclohexyl - 2,2 - dimethyl - hydrazine, 1,1-dimethyl-2-n-octadecylhydrazine and 1,1-dimethyl-2-n-octylhydrazine.  The first of these is prepared by reacting anhydrous ethylene glycol dimethyl ether with cyclohexanone dimethyl hydrazone, the ether being heated with lithium aluminium hydride before adding the ketone; the latter two compounds are prepared by the method described in Specification 875,152.  The use of these and other specified hydrazines as antiozonants in rubber compositions is described.
Patent GB-302293-A (GB)
Title: Improvements in conduit coupling
IPC: F16L27/08
Filed: 1927-08-15
Abstract: 302,293. Roach, F. E. Oct. 9, 1926, [Convention date]. Divided on 278,677. Couplings, disconnectible. -The socket and plug parts 43, 44 of a conduit coupling are connected by means of a plurality of spring tongues 49, which are formed integral with the plug member and are each provided at their outer ends with a bead 50 adapted to snap into a groove 47 in the socket member. Fluid-tightness is secured by means of a rubber tube 45 which is positioned within the plug member and projects therefrom to make contact with the socket member under the action of the internal fluid pressure. Specification 278,677 is referred to.
Patent GB-394258-A (GB)
Title: Improvements in and relating to air blowers
IPC: A45D20/10
Filed: 1932-12-30
Abstract: 394,258. Centrifugal blowers. POLLAK, J. E., 20, Holborn, London.- (Schott & Co. Kommanditges, Dr. Ing.; Langenhagen, Hanover, Germany.) Dec. 30, 1932, No. 36907. [Class 110 (i).] The impeller of an electrically driven airblower comprises blades the air propelling surfaces 2 of which are inclined to the radial direction so that when immediately in front of the blower pipe 3 they are normal thereto. The casing is formed in two parts which are held together by a screwed handle 5.
Patent GB-1445333-A (GB)
Title: Ultrafiltration membranes and separation processes
IPC: C08K3/04
Filed: 1972-08-09
Abstract: 1445333 Ultra filtration of milk and whey UNILEVER Ltd 8 Aug 1973 [9 Aug 1972] 37080/72 Heading B1X [Also in Divisions B5 and C3] An ultra filtration membrane comprising a film of a cellulose ester or ether, poly vinyl chloride, polyacrylonitrile polyolefine or a polyacrylic ester having wholly dispersed therein in the form of a finely divided non colloidal particles a quantity of a water insoluble, impervious solid, chemically inert to the membrane and to the filtrate especially particles of carbon, iron, cobalt, nickel, molybdenum, chromium or their oxides or alloys (e.g. stainless steel), silica or sulphur (see Division B5) is used in the concentration of milk and whey products. The membrane gives improved flux rates.
Patent GB-1072277-A (GB)
Title: Lightweight bead core for pneumatic tires
IPC: B60C15/04
Filed: 1965-08-31
Abstract: 1,072,277. Pneumatic tyres. B. F. GOODRICH CO. Aug. 31, 1965 [Sept. 1, 1964], No. 37141/65. Heading B7C. A bead core for a pneumatic tyre is made of continuously wound, epoxy resin dipped, continuous filament glass fibre in the proportion 8% to 40% by weight epoxy resin and 92% to 60% by weight glass fibre.
Patent GB-1198296-A (GB)
Title: Improvements in Valves for Inflatable Articles
Inventor: NICHOLLS BRYAN FREDERICK
IPC: F16K15/20
Filed: 1967-08-15
Abstract: 1,198,296. Valves. METTOY CO. Ltd. 15 Nov., 1968 [15 Aug., 1967], No. 37396/67. Heading F2V. A plug which is designed for use with an inflatable article 1 and adapted to be fitted within a resistant hollow sleeve 2 formed integrally with the article, comprises cylindrical head and stem portions 6 and 4 respectively, of which the head portion is formed with a coaxial cylindrical recess 7 which extends inwardly from the outermost portion of the head and part way along its axial length, and of which the head and stem portions are formed with two passages 8 which extend inwardly from the innermost end of the cylindrical recess 7, are disposed symmetrically about the plug axis, and open radially outwards in the cylindrical surface of the stem adjacent the inner end of the head, the grooves decreasing in radial dimensions in a direction towards the stem tapered end 5. In operation, application of pressure to aperture 3 results in such pressure being transmitted through the recess 7 to the grooves 8 and hence in the deformation of sleeve 2 and the consequential establishment of communication between port 3 and the article interior.
Patent GB-873209-A (GB)
Title: Method of preparing shaped articles from isotactic crystallisable polymers
IPC: B29C67/00
Filed: 1958-11-21
Abstract: Isostatic crystallizable polystyrene having a first order transition temperature above 200 DEG C. and a second order transition temperature below room temperature, is moulded into a shaped article by heating it to a temperature equal to or above its melting point, rapidly cooling it to a temperature equal to or below 30 DEG C. at a rate sufficient to prevent crystallization, shaping it in apparatus at a temperature within the range in which crystallization occurs most rapidly, and retaining it in that apparatus until it is completely or almost completely crystallized.  In one example polystyrene is initially heated to 230 DEG C. and extruded through a filament forming die into cold water, the filaments are granulated, charged into a mould and retained therein at 170 DEG C. for 10 minutes.  In a further example the polystyrene granules are injected through a nozzle heated to 240 DEG C. into a mould maintained at 170 DEG C., and retained there for 10 minutes.  Specification 873,208 is referred to.ALSO:Isostatic crystallisable polystyrene having a first order transition temperature above 200 DEG C. and a second order transition temperature below room temperature, is moulded into a shaped article by heating it to a temperature equal to or above its melting point, rapidly cooling it to a temperature equal to or below 30 DEG C. at a rate sufficient to prevent crystallisation, shaping it in apparatus at a temperature within the range in which crystallisation occurs most rapidly, and retaining it in that apparatus until it is completely or almost completely crystallised. In one example polystyrene is initially heated to 230 DEG C. and extruded through a filament forming die into cold water, the filaments are granulated, charged into a mould and retained therein at 170 DEG C. for 10 minutes.  In a further example the polystyrene granules are injected through a nozzle heater to 240 DEG C. into a mould maintained at 170 DEG C., and retained there for 10 minutes. Specification 873,208 is referred to.
Patent GB-849695-A (GB)
Title: Improvements in, or relating to, traps for waste outlets of sanitary appliances
Inventor: GOLDER HUGH CLIFFORD
IPC: E03C1/282
Filed: 1957-12-04
Abstract: 849,695. Traps. ECONOMIC WATER SOFTENERS Ltd. Feb. 4, 1959 [Dec. 4, 1957], No. 37707 /57. Class 33. A trap for a washhand basin, sink or like sanitary appliance comprises a hollow body 1, connected at the upper end into the waste outlet thereof, the lower end having a depending annular threaded skirt 14 into which may be screwed the neck 15 of a replaceable glass jar 16 or like domestic receptacle. The skirt 14 depends from a ring 12 at the body's lower end around a shoulder 13 beneath which a resilient washer 17 is seated, on to which the neck 15 is screwed. The body's upper end has a collar 3 secured to a pipe 2, the upper end of which has a shoulder 4 to coact with the neck 5 of the waste outlet, the upper end of which has a shoulder 4 to coact with the neck 5 of the waste outlet, with an intervening compressible washer, and on the neck 5a coupling nut 6 is screwed to engage the shoulder 4. The joint for a waste pipe 10 is similarly made.
Patent GB-1095938-A (GB)
Title: Improvements in or relating to display stands, stools, tables, desks and other articles having legs
Inventor: MILLER HAMISH GORDON MUNRO
IPC: A47B3/12
Filed: 1963-09-25
Abstract: 1,095,938. Dismountable furniture. HALL & GOULDING Ltd. Sept. 22, 1964 [Sept. 25, 1963], No. 37725/63. Heading A4H. An article of furniture such as a display stand, stool or table has its legs joined together in pairs, each pair of legs 12 or 14 being joined by a cross bar 16 while the frame 10 has sockets (18) in which the cross bars fit. A lower frame 20 includes struts 22 which fit into sockets in the legs and tend to thrust the legs apart and jam the cross bars 16 in their sockets 18.
Patent GB-1335474-A (GB)
Title: Azo dyestuffs their manufacture and use
IPC: G03C7/29
Filed: 1971-08-11
Abstract: 1335474 Photographic materials containing azo dyes CIBA-GEIGY AG 11 Aug 1971 [19 Aug 1970] 37766/71 Heading G2C [Also in Division C4] Azo dyes of formula are used in photographic light-sensitive materials, and in particular as image dyestuffs for the silver dye bleach process. In the above formula A is optionally substituted alkylene, phenylene or naphthylene, an optionally substituted heterocyclic radical with 5 or 6 ring members containing O, S or N atoms, or a radical of formula where A' is -(CH 2 ) F , -CO-, -NH, -O-, -S-, -SO 2  -, or -N=N-; s is 1 or 2; r is an integer from 1-4; D and D' are H, halogen, C 1  -C 4  alkyl or alkoxy; R is H or SO 3 H; X is H, NH 2  or amino substituted by alkyl, cycloalkyl or substituted phenyl; E is H, SO 3 H or C 1 -C 4  alkoxy and U is H or a C 1 -C 4  alkyl or alkoxy group. The purple dyes of formula I may be used in multi-layer photographic material in combination with a green-blue and a yellow dyestuff. They may also be incorporated in an auxiliary layer or a layer adjacent to the light-sensitive layer.
Patent GB-1084783-A (GB)
Title: Root-crop harvesters
Inventor: HAASE GREGORY
IPC: A01D33/14
Filed: 1964-09-16
Abstract: 1,084,783. Root crop harvesters. WEIMAR-WERK VEB. Sept. 16, 1964, No. 37797/64. Heading A1F. The body 1 of a root crop harvester is articulated with a front wheel support bearing 11 by parallel guide rods 8, 7 so that the body can pivot vertically about rear axle 3. The front wheel axle 13 is rotatable for steering in the bearing and is connected with a draw bar 22. The upper guide rod 8 includes a further rod 15 pivotally connected to a hydraulic ram 16, by means of which working tools 2 can be raised. A free adjustment spindle 20 limits the working depth of the tools. In operation if the tools engage an obstruction the axles 3 and 13 will be forced apart and the tools will be raised.
Patent GB-1281214-A (GB)
Title: Permselective membrane assembly and method of manufacture
Inventor: MCLAIN EARL ANDERSON
IPC: B01D63/04
Filed: 1969-07-29
Abstract: 1281214 Winding on spherical cores DOW CHEMICALS CO 29 July 1969 37894/69 Addition to 1221994 Heading B8G [Also in Division B1] A semipermeable membrane assembly comprising arcuate segments of hollow filament supported on a substantially spherical core is made by a process comprising winding the filament 10 coming from a spinning machine or unwinding from a bobbin (not shown) and passing through hollow rotating shaft 12 and rotating yarn guide 13 on to a core 15, core 15 rotating on axis 18 which is simultaneously oscillated about the core's centre. The plane of winding is at an acute angle to the axis of rotation of the core and varies through an angle of 5 to 85 degrees. During winding, resin may be applied to an equatorial section 20 of the winding, and subsequently cured. Portions of the hollow filaments are finally cut away to permit entry of fluids.
Patent GB-933819-A (GB)
Title: Electric motor control
Inventor: HOHNE JACK CYRIL
IPC: H02P7/06
Filed: 1959-11-10
Abstract: 933,819. Control of motors. GLOBE INDUSTRIES Inc. Nov. 10, 1959, No. 38125/59. Class 38 (3). [Also in Group XXXV] A speed control system for an electric motor includes switching means having a pair of contacts, means for opening and closing said contacts at times related to the speed of the motor, a transistor having base, collector and emitter electrodes, the collector electrode and one other electrode being connected across the diagonal of a current direction limiting bridge and the switching means being connected in series with the base electrode and one other electrode. As shown, a power transistor 14 having a base 20, collector 18 and emitter 16 is interposed between a motor 2 and a power source 1, the emitter 16 and collector 18 being connected across the diagonal of a bridge 3 constituted by rectifiers 6, 8, 10, 12 connected and arranged so that current will flow through the transistor in the same direction regardless of the polarity of the voltage source. The base 20 and collector 18 are connected in series with a centrifugal governor 4 mounted on the motor shaft 5 and comprising contacts 36, 38. Current flows through the transistor until the governor contacts open when the current is switched off by reason of the base 20 assuming the same potential as the emitter, this being assured by a resistor 42 inserted between the base 20 and the positive side of the bridge 3. The base and collector (Fig. 2, not shown) or the collector and emitter (Fig. 3, not shown) may be connected across the diagonal of the current direction limiting bridge, a source of bias potential for the transistor being included for these modifications.
Patent GB-1397717-A (GB)
Title: Sinterable aluminium titanate powder
IPC: C04B35/478
Filed: 1973-08-13
Abstract: 1397717 Sinterable aluminium titanate UNITED STATES ATOMIC ENERGY COMMISSION 13 Aug 1973 [11 Sept 1972] 38196/73 Heading C1A A method for preparing sinterable aluminium titanate powder comprising mixing a solution of an aluminium compound at a plus-3 valence state and a titanium compound at a plus-4 valence state, coprecipitating the A1 and Li from solution as aluminium titanium hydroxide, filtering and drying the precipitate, and calcining the hydroxide by heating in air at a temperature of 700-800 C. for 5-40 hours to remove volatiles and increase the average size of the powder particulates. Coprecipitation of sinterable Al 2 LiO 5  powder can be achieved by the synthesis of a 50 : 50 mol. per cent Al 2 O 3 - LiO 2  mix involving the hydrolysis of metal alkoxides in benzene. For example, under an argon atmosphere aluminium isopropylate was dissolved in benzene, titanium isopropylate was added to this solution and the solution refluxed for several hours and allowed to cool. Water was then added with stirring to hydrolyse the organo-metallics, an excess of water being used to improve filtration. Alcohol and water was removed from the hydrolized powder by heating in vacuo at 20-60 C. for 12-48 hours. The dry powder was then calcined in air at 700- 800 C. for 5-40 hours which increased the particle size to 600-650 . Other suitable alkoxides are ethylates, butylates and tertarrylates and in place of benzene, toluene, hexane and xylene are suitable as diluents. Alternatively water soluble aluminium and titanium salts such as chlorides or nitrates can be used, if necessary the titanium salt may be oxidized with an acid such as HCl to assure the presence of the plus 4 ion state, and then hydrolysis is carried out using an aqueous hydroxide solution, e.g. ammonium hydroxide. Calcined powders may be formed into a desired product shape by any suitable metallurgical procedure, e.g. isostatic pressing or slip casting followed by sintering at 1300-1700 C. to give products of thermal expansion <1Î10<SP>-6</SP> in./in. C.
Patent GB-1436727-A (GB)
Title: Apparatus for noise and air pollution abatement
IPC: E04B1/82
Filed: 1973-08-14
Abstract: 1436727 Sound insulation LOCKHEED AIRCRAFT CORP 14 Aug 1973 [28 Aug 1972] 38474/73 Heading F2X [Also in Division F4] A sound absorbing apparatus comprises a perforate element having a through flow resistance which is a non-linear function of the differential fluid pressure thereacross, and means providing a differential fluid pressure across the element sufficient to bias the flow resistance therethrough to a through flow resistance which is within the range of from 10 to 200 cgs rayls. The fluid pressure may be equal to the characteristic acoustical impedance of the fluid. In one embodiment (Fig. 1), a hood for a machine tool such as a metal-cutting lathe comprises an outer impervious wall 14 and an inner perforate wall 15 with the space between the walls divided into compartments by means of spacers (17) (Fig. 2, not shown). A plenum 6 collects air from under the hood, and the air thus collected passes through a flow-measuring section 7 into a flexible conduit 8 and is finally exhausted via discharge conduit 11 by a blower 9. A gauge 12 indicates the pressure between the walls 14, 15 while a gauge 13 indicates the differential pressure across the flow-measuring section 7. Both ventilation and sound absorption functions may be performed efficiently and simultaneously if the through flow resistance of the perforate wall 15 approximates the acoustical impedance of the air (about 42 rayls). Since the sound absorption is accomplished without the use of any fibrous material, the apparatus can operate directly in sprays of oil or coolant, and showers of heated chips ejected from the machine. To assure that the system is operating within its intended range of parameters, it is desirable to monitor both the negative pressure on the inner side of the structure and the amount of ventilating flow, using the gauges 12, 13 respectively. A pan 4 designed to catch the coolant, chips, etc. is provided with edges 16 which serve as a track upon which wheels 5 provided on either side of the hood can run so that the hood can be rolled away to expose the cutting area for inspection, etc. In an alternative embodiment (Fig. 3) the invention is incorported into the wall or ceiling of a room to provide both ventilation and sound absorption. Hangers 22 secure a perforate facing panel 23 spaced from a wall 21 (or ceiling). Conduit 25 is connected to a suction means and is coupled to the compartmented space between wall 21 and panel 23 by means of ducts 26, 27. In use, the ventilation system filters particulate matter, grease and other solids out of the airstream passing through the perforate element thus tending to clog the perforations in this element, and an automatic flow regulator is described (Fig. 4, not shown) which maintains the necessary air flow for proper functioning of the sound absorber in spite of this partial clogging of the perforations.
Patent GB-1484215-A (GB)
Title: Solid-depolarizer electric cells
IPC: H01M6/06
Filed: 1975-10-02
Abstract: 1484215 Electrolytes for primary cells FRANCE ARMED FORCES MINISTER OF 2 Oct 1975 [31 Oct 1974] 38652/75 Heading H1B A primary cell comprises a solid depolarizer a Zn anode 4, and a graphite cathode 1 surrounded by manganese dioxide 2 impregnated with an electrolyte which is an aqueous solution containing lithium chloride and one of the perchlorates of Zn or Mg. The manganese dioxide is separated from the Zn by a paper cylinder 3, and a cardboard disc 5. A top plug 8 of wax or pitch is cast on a washer 6. The manganese dioxide may also contain finely divided carbon and zinc hydroxide.