baber/WOPTO huggingface dataset:
Patent GB-365977-A (GB)
Title: An improved locking device for cords, ropes, straps or the like
IPC: F16G11/04
Filed: 1931-07-07
Abstract: 365,977. Friction grips. LARSSON, L. J., H÷glunda, Borglunda, Sweden. July 7, 1931, No. 19592. [Class 44.] A wedging member 2 is pressed by a spring 10 so as tc grip a cord which lies between the opposite sides of the member and a casing 1. By inserting a finger in the hole 8, the wedging member 2 can be pushed upwards to release the cord.
Patent GB-585808-A (GB)
Title: Improvements in and relating to condensation products
IPC: C08G8/28
Filed: 1943-11-24
Abstract: Thermosetting hydrocarbon-modified phenolformaldehyde resins are obtained by heating together in presence of a catalyst an emulsified mixture of formaldehyde, a phenol and a hydrocarbon which can be emulsified with the other reactants, the porportions of the reactants being 1 mol. of formaldehyde to 1 mol. of phenol represented by 30 to 70 per cent by weight of the hydrocarbon. Phenol, cresols, xylols are specified and hydrocarbons such as petroleums, tars, kerosene, naphtha, or cracked products particularly those described in Specification 573,240.  Acid or alkaline condensing agents may be employed.  The reaction may be stopped when a gel is obtained which dissolved in butyl alcohol may be used in film form or may be rendered infusible by heating and moulding.  The gel may also be extracted with naphtha and petroleum ether to give films.  In examples: (1) 6 gs. of a condensate obtained as described in Specification 573,240, mixed with 6 gs. phenol and 12 gs. 40 per cent formaldehyde, were shaken until emulsified and then heated for 40 mins., when a soft p  jelly was obtained; (2) a reaction mixture of 6 gs. liquid paraffin, 6 gs. phenol, 0.3 manganese naphthenate, 12 gs. formaldehyde and 1 c.c. 30 per cent NaOH solution in water was employed; (4) the oil employed was a condensate obtained by convertive distillation of low temperature tar and the jelly obtained was mixed with asbestos and heated at 140 DEG  C. Specifications 104,887, 205,167, [both in Class 2 (iii)], 571,246, 571,248 and 571,249 also are referred to.
Patent GB-986990-A (GB)
Title: Improvements in or relating to the manufacture of hollow threads and staple fibres from synthetic linear polycondensate or polymerization products
IPC: D01D5/24
Filed: 1963-05-17
Abstract: 986,990. Spinnerets. ONDERZOEKINGSINSTITUUT RESEARCH N.V. May 17, 1963 [May 24, 1962], No. 19680/63. Heading B5B. A spinneret' for use in making hollow threads or staple fibres from synthetic linear polycondensation or addition polymerization products comprises one or more spinning orifices, each consisting of two or more arc-shaped slits which together define the walls of the hollow thread, the distance between the ends of adjacent slits ranging from 1 to 6 times the average width of the slits, wherein the slits which together form the spinning orifice partly enclose a surface area of from 0.01 to 7 sq. mm., and wherein the ends of the adjacent slits in a longitudinal direction are substantially parallel with each other. The distance along which the slits are parallel with each other may be from 0À05-2 mm., and the width of the slits may be 0À02-0À4 mm. The ends of adjacent arc-shaped slits may be bent inwardly; outwardly, or both inwardly and outwardly, in order to bring the ends into parallel relationship. Preferred forms are shown in Figs. 1-8. Shaped branch slits may be provided at the outer edge of the arc-shaped slits (Fig. 6). Polyamides, polyesters and polyolefins may be melt-spun through the spinnerets.
Patent GB-256964-A (GB)
Title: Improvements in the manufacture and production of valuable liquid and other hydrocarbons and derivatives thereof by the destructive hydrogenation of mineral coal and other solid carbonaceous materials
IPC: C10G1/06
Filed: 1926-08-10
Abstract: 256,964. I, G. Farbenindustrie Akt.- Ges. Aug. 14, 1925, [Convention date]. Hydrogenation, destructive.-In the production of lighter liquid hydrocarbons by the treatment at elevated temperatures and pressures of coals and other solid carbonaceous substances with hydrogen or gases containing or giving rise to hydrogen, the carbonaceous material is mixed with lignite or peat or both whereby coking is prevented and the introduction into the reaction vessel of the carbonaceous matter is facilitated. Catalysts, e.g. uranium oxide, may be added to the materials treated or arranged separately in the reaction vessel or one through which the products pass before cooling, or may be used in both ways. Preferably the hot parts of the apparatus in contact with the reacting materials are made of material inert thereto, e.g. iron coated with chromium or alloys rich in chromium such as chromium-nickel-iron substantially or completely free from carbon. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the addition of peat &c. to liquid carbonaceous materials. This subject-matter does not appear in the Specification as accepted.
Patent GB-572453-A (GB)
Title: Improvements in larders and like receptacles on vehicles
IPC: B60N3/10
Filed: 1943-11-25
Abstract: 572,453. Refrigerators. TRANSRECEIVERS, Ltd., and HERMES, L. W. Nov. 25, 1943, No. 19728. [Class 29] [Also in Group XXXII] A vehicle includes a larder or like receptacle having a shell which is of heat insulating construction and the interior of the larder is adapted to be cooled by a current of air picked up by a scoop disposed beneath the floor of the vehicle in such a position that it is normally in the shade. The larder frame 10 is hollow and divided into several closed air cells 13 internally lined with insulating material 14 and the interior is provided with grid shelves 15. The air scoop system is fixed and comprises ducts 20 arranged longitudinally of the vehicle and provided with scoops 16, a deflector 21 between the ducts deflecting the air into the larder. Each scoop 16 is provided with louvres 17 and coarse and fine air filters 18, 19. The ducts may be artificially cooled by a jacket 24 of water-absorbent material surrounded by an outer duct 25 provided with an air scoop 26. The sides of the vehicle are extended below the vehicle floor to form an inverted channel through which air is directed towards the scoops, a door being provided in the extensions for access to the filter slides.
Patent GB-1465875-A (GB)
Title: Electrical circuit arrangements for producing a stable output voltage
IPC: H02M3/338
Filed: 1975-05-12
Abstract: 1465875 Automatic control of voltage and current ROBERT BOSCH GmbH 12 May 1975 [6 Dec 1974] 19809/75 Heading G3R An electricity supply circuit comprises a blocking oscillator including a switching transistor connected in the primary circuit of a transformer. An output voltage is taken across a capacitor connected through a rectifier to a secondary winding of the transformer. The switching transistor can be turned off by a control transistor in dependence on the output voltage and the switching transistor current, so as to regulate the output voltage despite variations in the input voltage. As shown, a load 11 is supplied from a vehicle battery through a circuit including a switching transistor 6, a transformer 1 with primary winding 2 and secondary windings 3, 4, 5, a rectifier 7 and a capacitor 8. In normal operation, the transistor 6, which receives a constant control current through secondary winding 5 and an incandescent lamp resistor 19, oscillates while a control transistor 20 remains blocked. If the output voltage reaches a predetermined limiting value, the voltage on a capacitor 27 charged by secondary winding 4 is sufficient to break down Zener diode 25 which turns on the transistor 20 and stops further oscillation of the transistor 6 until the output voltage falls. The current through transistor 6 is measured by a resistor 24, and transistor 20 is also turned on if the current reaches a limiting value. The load 11 may be an ignition light pistol or an engine tester.
Patent GB-969384-A (GB)
Title: Analogue-to-digital converters
Inventor: DUNCAN ALAN HENRY
IPC: H03M1/00
Filed: 1962-05-25
Abstract: 969,384. Electric selective signalling.  MINISTER OF AVIATION. May 16,1963 [May 25, 1962], No.20163/62. Heading G4H. An impedance X is measured in a bridge circuit incorporating a balancing element RV which is varied cyclically by means M which is also coupled to a shaft position encoder SE to provide an instantaneous digital indication of the state of balancing element RV, a signal pulse being produced at balance (of the bridge) to read-out the indication of encoder SE. In the Figure, X is a  resistance and balancing element RV is a circular potentiometer driven continuously by a motor M. At balance, a series circuit of amplifier A, threshold circuit TC and differentiator D cause encoder read-out into a temporary store TS which is emptied into a permanent store PS (magnetic or punched tape) once per cycle. Store TS may be omitted. Independence X may be a capacitance or inductance, balancing element RV then being a variable capacitor or inductance.
Patent GB-1113743-A (GB)
Title: Holding means for workpieces
Inventor: MAY DENIS COLIN
IPC: B23Q3/06
Filed: 1966-05-06
Abstract: 1,113,743. Drilling machine workholder. KENARD ENGINEERING CO. Ltd. 12 Dec., 1966 [6 May, 1966], No. 20164/66. Headings B3B and B3C. Work-holding means for a drilling or like machine having an upright pillar comprises a first lever member 1 having a ring 2 adapted to encircle the pillar with slight clearance for sliding movement thereon, a further lever member 16 pivotally connected to the first lever and having a foot 31 arranged to clamp a workpiece on the machine table, a manuallyoperated cam arrangement 14, 18, 19, 23, 24 being provided which operates simultaneously on the two levers 1, 16 to cause the ring 2 to tilt and thereby to clamp the lever 1 on th pillar and to cause the lever member 16 to pivot on the lever 1 to depress the foot 31 into clamping engagement with the workpiece. The first lever member 1 has an extension 7 which fits telescopically in an arm portion 3. An adjustable stop may be fitted on the pillar to determine the clamping position of the ring where repeated clamping operations are to be carried out. The work-holding lever arrangement may be mounted on a special pillar therefor, suitably fixed to the work-table.
Patent GB-784305-A (GB)
Title: Improvements in side delivery rakes
IPC: A01D78/00
Filed: 1954-04-29
Abstract: The subject-matter of this Specification is included in Specification 784,303 but the claims differ.
Patent GB-1380776-A (GB)
Title: Systems for addressing data stores
IPC: G11C8/12
Filed: 1972-05-02
Abstract: 1380776 Addressing digital stores INTERNATIONAL BUSINESS MACHINES CORP 2 May 1972 [4 May 1971] 20307/72 Heading G4C A digital data store comprises, for example, 2<SP>18 </SP>22 bit words organized into four blocks BLI-IV, each block having 32 cards, each card having 11 modules, each module having 8 bipolar transistor chips, each chip having 512 cells. An address register SAR receives an 18 bit address, 2 bits of which are used to select one of the four blocks using signals BLAI-IV. Each block has twelve current drivers TR with AND gates for inputs which receive 12 bits of the address and these are enabled by the respective block signals. Provision of the block selection signals is stated to reduce selection current since current drivers only charge address line capacitance in the selected block.
Patent GB-1269957-A (GB)
Title: A method for the manufacture of cellular bodies from polymers free from liquid plasticizers
IPC: C08J9/00
Filed: 1969-04-21
Abstract: 1,269,957. Cellular vinyl chloride polymers. FOSFATBOLAGET A.B. 21 April, 1969 [22 April, 1968], No. 20327/69. Headings C3C, C3G and C3P. An article having a uniform cellular structure and a smooth surface is prepared from a starting material, free from liquid plasticizers, the starting material comprising (a) a graft copolymer of vinyl chloride on to an ethylene-vinyl ester copolymer; (b) a mixture of polyvinyl chloride and an ethylene-vinyl ester copolymer; or (c) a mixture of polyvinyl chloride and the graft copolymer of (a) ; and containing ethylene-vinyl ester copolymer in an amount of from 3 to 50% by weight based on the total weight of the starting material, by admixing the starting material with a chemical expanding agent, and optionally with a stabilizer and/or a lubricant, moulding or extruding the material at a temperature above the decomposition temperature of the expanding agent to form an article and immediately allowing the article to expand. In the examples graft copolymers of vinyl chloride and ethylene-vinyl acetate copolymer, polyvinyl chloride, chlorinated polyethylene, acrylonitrile-butadienestyrene copolymer, methyl methacrylatebutadiene copolymer, acrylic resin, ethyleneacrylate copolymer containing Ba/Cd stabilizer, triphenyl phosphate, epoxy plasticizer, polythene wax and TiO 2  and expanded using azodicarbonamide.
Patent GB-1098088-A (GB)
Title: Variable-speed transmission
IPC: F16H47/08
Filed: 1966-05-09
Abstract: 1,098,088. Hydromechanical change-speed gear. CATERPILLAR TRACTOR CO. May 9, 1966 [June 28, 1965], No. 20386/66. Heading F2D. A hydromechanical transmission comprises a hydrodynamic torque converter 10 and first and second planetary gear units 14p, 18p having their planet carriers 108, 118 secured together, the input drive shaft being connected to the torque converter impeller P and, by a shaft 94, to the second gear unit 18p, while the converter turbine T is connected by a sleeve shaft 64 to the sunwheel 102 of the gear unit 14p. The ring gear 112 of unit 14p is provided with a brake 14c, while a clutch 18c connects shaft 94 and the planet carrier 118 of the second gear unit 18p, the sunwheel 130 of which is provided with a brake 20c. With brake 14c engaged converter drive is obtained, as shown, through shaft 64, sunwheel 102 and carrier 118 to the output shaft 136. With clutch 18c engaged a direct mechanical drive is obtained through shaft 94, carrier 118 and planets 120 to shaft 136, while a direct underdrive is obtained through shaft 94, annulus 122 and planets 120 when sunwheel 130 is held by brake 20c. The shaft 136 may be connected to a range gear-box 24 comprising three-element gear units 30p, 32p, 34p controlled by a clutch 26c and brakes 30c, 32c for three forward speeds, and by a third brake 34c for reverse drive. The brakes and clutches of the respective gear-boxes may be operated independently to give a total of nine forward and three reverse speeds. All the brakes and clutches are of the disc-type operated by annular piston actuators supplied with pressure liquid by an impellerdriven pump (88), Figs. 1 and 2 (not shown).
Patent GB-141266-A (GB)
Title: An improvement in means for preventing the unauthorised starting of internal combustion engines
IPC: B60R25/042
Filed: 1919-08-20
Abstract: 141,266. Hammond, S. J. Aug. 20, 1919. Valves or cocks fitted with independently-actuated supplementary valves.-A cock with a nest of plugs A, B, C, D, having numbered dials at their upper ends, requires certain of the numbers to coincide when the bores of all the plugs are in line. The cock is fitted to the carburettor of an engine in a way that will prevent it from being by-passed. Reference has been directed by the Comptroller to Specification, 144,875.
Patent GB-879505-A (GB)
Title: Amino-esters of therapeutic utility
Filed: 1960-06-10
Abstract: The invention comprises b -dimethylaminoethyl p-alkylamino-benzoates, wherein the alkyl group is an n-amyl, n-hexyl or n-heptyl group and acid addition salts thereof such as the hydrohalides, sulphates, acetates, tartrates, citrates and succinates.  It comprises also the preparation of these compounds by (a) esterifying the free acid with dimethylaminoethanol, preferably in the presence of a strong acid; (b) transesterifying a C1-4 alkyl ester of the alkylaminobenzoic acid with dimethylaminoethanol, preferably in the presence of a strong base; (c) reacting a haloethyl p-alkylaminobenzoate with dimethylamine; or (d) alkylating b -dimethylaminoethyl p-aminobenzoate with an aryl, hexyl or heptyl halide.  The compounds are used pharmaceutically in the treatment of peptic ulcer or gastritis (see Group VI).  p-Alkylaminobenzoic acids such as the p-amylamino- and p-hexylaminocompounds and their esters such as ethyl p-heptylaminobenzoate are made by the action of the alkyl halide on the p-aminobenzoic acid or its ester.  Chloroethyl p-alkylaminobenzoates such as the p-amylaminobenzoate are made by the action of ethylene chlorohydrin on the acid.  Dimethylaminoethyl p-aminobenzoate is prepared by esterifying the acid with dimethylaminoethanol.ALSO:Pharmaceutical preparations for the treatment of gastritis, peptic ulcer and the like, by oral administration, comprise at least one b -dimethylaminoethyl p - alkylaminobenzoate wherein the alkyl group is an n-amyl, n-hexyl or n-heptyl group or an acid addition salt, such as an hydrohalide, sulphate, acetate, tartrate, citrate or succinate, thereof, in association with a pharmaceutical carrier.  The preparations suitably take the form of tablets, pills, powders or syrups.
Patent GB-1027574-A (GB)
Title: Improvements in pattern wax compositions
IPC: C08K5/20
Filed: 1964-05-19
Abstract: A low-shrinkage wax base composition suitable for making eliminable casting patterns comprises upwards of 50% weight of a base wax, e.g. paraffin and microcrystalline waxes, petroleum resins, vegetable waxes such as candelilla wax and materials such as hydrogenated castor oil and oxidized linseed oil, polyester resins and polyoxyethylene glycols, or mixtures of the foregoing, and from 5-50% weight of a filler compound having a melting point higher than the base materials and insoluble therein and of formula <FORM:1027574/C4-C5/1> where R1 and R2, which may be the same or different, are unsubstituted aliphatic radicals having a straight or branched chain of 8-24 carbons, or a corresponding chain having hydroxy, amino, carboxy, or cyclic aliphatic substituents, and R3 is an unsubstituted straight or branched chain aliphatic radical of 2-10 carbons, or a corresponding chain having hydroxy, amino, carboxy, or cyclic aliphatic substituents.  Examples are ethylene distearamide and ethylene dipalmitamide.
Patent GB-614642-A (GB)
Title: Improvements in or relating to stress or load indicators
IPC: G01L1/02
Filed: 1946-07-10
Abstract: 614,642. Measuring forces and strains. VICKERS - ARMSTRONGS, Ltd., and HOUGHTON, E. C. July 10, 1946, No. 20622. [Class 106 (ii)] An indicator for loadr and stresses, particularly those of momen tary duration, comprises two members adapted to be fastened in spaced relationship to the stressed element and a flexible tape or combination of levers arranged between the two members so as tc form an elongated diamond - shaped quadri. lateral whose diagonals will vary with changes in the distance between the two members and further comprises a fluid container which is in communication with a pressure gauge and which is so arranged that its effective volume varies in accordance with the changes in length of the shorter diagonal. Supports 1 and 2 are fastened to the element, as by dowels or welding, and carry a roller 9, adjustable by means of a collar 6 and a roller 10 respectively, round which passes a metal tape 11 urged outwardly between the two rollers by further rollers carried by sprung abutments 13 freely supported by a bracket 15. A bellows 21, or cylinder and piston, containing fluid is mounted between the abutments 13 and connected by a ventable tube to a pressure gauge 22 which may have an auxiliary pointer to register the maximum reading. Either the pressure gauge or the bellows may be provided with a known type of recording device. The bracket 15 is carried by a casing 16 which is rigidly secured to the support 1 but which has a rubber ring 17 to permit relative movement between the support 2 and the. casing. A hinged flap in the latter enables the collar 6 to be adjusted. In another embodiment (not shown), the bellows is replaced by a vessel closed at its two ends by diaphragms carrying pins which project into holes in the tape 11. Two tapes may be used to obtain greater magnification or the tapes may be replaced by a corresponding system of levers.
Patent GB-1237706-A (GB)
Title: Improvements relating to electromagnets
Inventor: MACK JOHN EDWARD
IPC: H01F7/16
Filed: 1968-05-01
Abstract: 1,237,706. Electromagnet. HYMATIC ENG. CO. Ltd. 1 May, 1969 [1 May, 1968], No. 20662/68. Heading H1P. An electromagnet which may operate a small pneumatic valve is in the form of a pot magnet with a remanent magnet 22 gripped between a root portion 21 of the core of the electromagnet and pole member 23 having a pole face and shoulders tapering toward the pole face arranged for co-operation with shoulders 28 of a retaining member 28 which may be part of a coil former 27. The former 27 is held in the pot 11, 12 by a guide ring 32 in an annular top wall 34 of the magnet which has a raised portion surrounding the hollow armature 36 which is biased away from the core by a spring 43 and contains one end of an actuating rod 18 guided in the ring 32. A compression spring 38 is interposed between the end of the rod 18 and a plug 39 in the end of the armature to enable the armature to start to. move downwards before the rod moves.
Patent GB-461885-A (GB)
Title: Improvements in the manufacture and production of polyhydroxy compounds of the dibenzanthrone series
IPC: C09B3/30
Filed: 1935-07-22
Abstract: Polyoxy-dibenzanthrones are prepared by treating Bz - amino - Bz2.Bz2<1> - dioxydibenzanthrones or the corresponding diquinones with hydrolyzing agents.  Hydrolyzing agents specified are water, solutions of acids, bases or salts in water or other diluents, and reaction is generally effected by heating whereby amino groups are split off.  In examples: (1) Bz3-amino - Bz2.Bz2<1> - dioxydibenzanthrone is heated at 220--230 DEG  C. for 10 hours with dilute sulphuric acid to give a trioxy compound; sodium carbonate solution, acetic acid or dilute hydrochloric acid may also be used as hydrolyzing agents, in the latter case a compound containing chlorine being obtained; (2) Bz3-aminodibenzanthrone -Bz2.Bz2<1> - quinone (prepared by the oxidation of p Bz3<4>-amino-Bz2.Bz2<1>-dioxydibenzanthrone with ferric sulphate in dilute sulphuric acid) is heated as in (1) to give the quinone of a trioxy compound; (3) Bz3.Bz3<1>-diaminodibenzanthrone - Bz2.Bz2<1> - quinone (prepared by oxidizing the Bz3.Bz3<1>-diamino-Bz2.Bz2<1> - dioxy compound--cf. example 11 of Specification 442,860--with ferric sulphate in dilute sulphuric acid) is heated as in (1); the corresponding Bz3.Bz3<1>-diamino-Bz2.Bz2<1>-dioxy compound, and in both cases a tetroxy derivative or a quinone derivative thereof may be used; (4) dibromo-Bz3.Bz3<1> diaminodibenzanthrone-Bz2.Bz2<1>-quinone (prepared by nitrating the bromo derivative of Bz2.Bz2<1>-dimethoxydibenzanthrone prepared according to example 1 of Specification 205,304, [Class 2 (iii)], in glacial acetic acid and reducing the product in monohydrate containing copper and boric acid) is treated with dilute sulphuric acid as in (1); the corresponding Bz3.Bz3<1> - diaminodibenzanthrone-Bz2.Bz2<1>-quinone containing chlorine (similarly prepared from chloro-Bz2.Bz2<1>-dimethoxydibenzanthrone) may similarly be treated.  The starting materials may be prepared according to Specification 442,860.
Patent GB-425574-A (GB)
Title: Improvements in or relating to means or devices for investigating, correcting, and developing the power of human vision
IPC: A61B3/00
Filed: 1933-09-06
Abstract: 425,574. Sight -- testing appliances. SIMPKINS, R. B., 13, Holly Road, Edgbaston, Birmingham. Sept. 6, 1933, No. 20738/34. Divided out of 425,474. [Class 97 (i)] [See also Group VI] An appliance for testing and exercising binocular focusing of the eyes comprises an annulus 4, mounted on a bracket 5 on a handle 5<a>, and a disc 7, having a focusing spot 7a or other marking thereon, carried by a screw 6 in a bearing 5<b> on the handle, the screw permitting relative adjustment of the disc and annulus. The annulus 4 may bear radial markings at 90‹ to one another.