baber/WOPTO huggingface dataset:
Patent GB-439518-A (GB)
Title: Improvements in padding applicable for laundry calendar rollers, garment presses andsimilar machines
IPC: D06F83/00
Filed: 1934-06-20
Abstract: 439,518. Woven fabrics. KENYON & SON, Ltd., J., Derby Street Mills, and EVANS, J., 516, Walmersley Road, both in Bury. June 20, 1934, No. 18219. [Class 142 (iv)] [See also Group VIII] Padding for laundry &c. machines consists of a three or four ply woven fabric of the type shown having two or three picks of rove-like absorbent cotton or wool weft and one pick of harder material, such as jute, ramie or linen, superimposed straight across the fabric and bound by relatively thin warps passing from face to back, the jute &c. being interwoven at the back or as an intermediate ply. Specifications 316,047 and 323,377, [both in Class 138 (ii)], are referred to. According to the Provisional Specification asbestos yarn may be substituted for the jute &c. yarn.
Patent GB-435882-A (GB)
Title: Improvements relating to contact fingers for electric circuit controllers
IPC: H01H1/44
Filed: 1934-06-20
Abstract: 435,882. Switch contacts. SMITHSON, J. G., and SMITHSON & CO., Ltd., J. G., Lifford Lane, King's Norton, Birmingham. June 20, 1934, No. 18235. [Class 38 (v)] The contact-carrying lever b pivots on a knife-edge fulcrum consisting of a gapped plate d straddling a wedge-shaped adjustable fulcrum piece e capable of sliding on the support a. Spring pressure is applied by a spring g on a loosely-mounted pin h. A flange k limits inward movement of the lever b. Preferably the wedge e is notched as shown.
Patent GB-890726-A (GB)
Title: Process for the manufacture of thermoplastic films
IPC: B29C55/28
Filed: 1958-06-06
Abstract: 890,726. Treatment of tubular films. FARBWERKE HOECHST A.G. June 6, 1958 [June 6, 1957], No. 18237/58. Drawings to Specification. Addition to 849,466. Class 2(2) The process of the parent Specification (in which a tube of thermoplastic material is heated at a temperature within a range extending from the crystallite melting point or softening point of the thermoplastic material to 60‹C. below that point and subjected to distention by the application of internal pressure) is modified in that the tube is heated, in the region immediately preceding the place at which the distention occurs, to a temperature which is 1‹-10‹C. higher than the temperature at which the remaining parts of the tube are heated. Polyolefines are specified thermoplastic materials, especially low temperature polyethylene and polypropylene. The portion of tube subjected to the higher temperature may range from 0À2-2À0 metres. In Examples (1) low pressure polyethylene tubing having a crystallite melting point of 128‹C. is heated initially to 125‹C. and then to 128‹C. before being distended by the application of internal pressure and (2) low pressure polypropylene tubing is heated initially to a temperature between 147‹ and 165‹C. and subsequently to 148‹-175‹C. the first temperature being 1‹-10‹C. below the second temperature, before being distended by the application of internal pressure.
Patent GB-300105-A (GB)
Title: Improvements relating to hat-brushing machines
IPC: A42C1/08
Filed: 1928-06-23
Abstract: 300,105. Schwarz, C. June 23, 1928. Brushing.-In a hatbrushing machine of the kind in which the hat body being brushed is supported on a conical revolving block a, a conical weighted ring c is provided to clamp the lower edge of the body b to the block and prevent it rucking up under the brush.
Patent GB-1583819-A (GB)
Title: Process for producing linalool
IPC: C07B61/00
Filed: 1978-05-08
Abstract: Linalool is produced by a hydrogenation of O-linalyl-N,N-dimethyl hydroxylamine having the formula    <IMAGE>  (I)  wherein Me represents methyl group and the reference numerals 1 to 10 represent 1 to 10 carbon positions under a hydrogen partial pressure of lower than 30 Kg/cm2 in the presence of a catalyst of a combination of Ni or Co component with a modifying component selected from the group consisting of Al, Ge, Sn, As, Sb, S, Se and Cr.
Patent GB-613327-A (GB)
Title: Improvements in or relating to electric connectors
IPC: H01R13/64
Filed: 1946-06-19
Abstract: 613,327. Two-part couplings. JACKSON, D., and PYE, Ltd. June 19, 1946, No. 18374. [Class 38 (i)] A moulded electric plug connector comprises a flat metal member 3 having tongues 4 at one end which are bent over to secure a bundle of conductors 1 carrying metal plugs 2 to the member, the conductors being disposed some on either side of the member and also bound and tied with thread thereto, if desired. After positioning the pins in desired relationship a body of insulating material, e.g. polythene, is moulded around and between the pins and the ends of the conductors, the pins and member 3 protruding partially from the body. The member 3 is positioned eccentrically so as to form a locating key to ensure insertion of the plug in a socket in the correct position. A flexible insulating sleeve may be placed over the conductors adjacent the tongues 4 so as to be partially embedded in the body. In addition, one of the conductors or a screening sheath may be connected to the member 3.
Patent GB-1505417-A (GB)
Title: Hydraulic motor control and brake system
IPC: G05D16/00
Filed: 1975-05-02
Abstract: 1505417 Fluid pressure brakes; valves DEERE & CO 2 May 1975 [3 May 1974] 18378/75 Headings F2F and F2V A spring-loaded vehicle brake actuator 42 is released by fluid pressure from a pump 44, transmitted through valve 112 and line 146, when either of the service lines 54, 56 to a reversible motor 26 is pressurized. The valve 112 normally vents the brake actuator through bore 142 and exhaust 138. Pressure applied from service line 54 or 56 passes a shuttle valve 110 and at a first pressure lifts the ball 130 from its seat 132. The larger area of piston 148 is then available, and the valve will stay open, releasing the brake, until the service pressure falls to a lower pressure than the first pressure. The supply to the motor 26, which may drive one track of a track-laying vehicle, is controlled by a pair of poppet valves 62, 64, one for each service line. When e.g. the service line 54 is pressurized, pressure on the valve face 100 opens the valve seats 76, 78. Exhaust fluid passes through a bore 101 of the valve 64 and between ports 92, 90 of a counterbalancing valve 68 which is opened by the application of pressure from service line 54 to a pilot piston 84. When the motor 26 tends to overrun, e.g. downhill with low service line pressure, the valve 68 closes, pressure across the piston of the valve 64 equalizes because of the opening 101, and the valve 64 closes until pressure builds up in the service line 54 sufficient to open the valve 68.
Patent GB-751859-A (GB)
Title: Improvements in or relating to aromatization catalysts
IPC: B01J27/04
Filed: 1953-07-03
Abstract: A catalyst for use in the aromatization or hydroforming of paraffinic and naphthenic hydrocarbons comprises an oxide or sulphide of chromium, vanadium or molybdenum and a support prepared from a zirconia gel or hydrogel which has been peptized by contact with a dilute acid either before or after the incorporation of the specified oxide or sulphide.  The zirconia may be precipitated from a dilute solution of zirconium oxychloride or zirconyl sulphate and then peptized by treatment with a dilute solution of acetic or nitric acid.  Chromium is incorporated by impregnating the peptized gel with a water soluble chromium compound, e.g. CrO3, chromium acetate or nitrate, or ammonium chromate or dichromate, or by mulling or dry mixing the gel with one of these chromium compounds or with chromium oxalate, chromium carbonate, or Cr2O3.  Molybdenum or vanadium is incorporated by impregnating the gel with an ammoniacal or aqueous solution of ammonium molybdate or vanadate or by mulling with MoO3. Alternatively the oxide or sulphide of chromium, vanadium, or molybdenum may be coprecipitated with the zirconia gel or hydrogel, followed by peptization of the gel.  The catalyst is dried and calcined and then reduced in hydrogen which may contain a small amount of water.  Suitable proportions of the components are 3-60 per cent chromium as Cr2O3 and 3-30 per cent molybdenum or vanadium as MoO3 or V2O5.  The catalyst may also contain a compound of zinc, magnesium, an alkali metal, or an alkaline earth metal in an amount equivalent to 0.05-2 per cent by weight of K2O; suitable compounds are oxides, carbonates, acetates, oxalates, and chromates.  Other additives specified are silica, boria, hydrogen fluoride, ammonium fluoride, calcium fluoride aluminium phosphate, zirconium phosphate, and ammonium phosphate.  The catalyst may be prepared in the form of pellets, granules, or powder.  When a sulphur-containing feedstock is treated, the oxides in the catalyst are converted to sulphides, which also act catalytically.
Patent GB-656796-A (GB)
Title: Improvements in or relating to extrusion die mechanisms for extruding continuous rods of compressed powdered metal
IPC: B22F3/20
Filed: 1948-07-12
Abstract: 656,796. Forming metal rods by extrusion of powder. CLIMAX MOLYBDENUM CO. July 12, 1948, Nos. 18676 and 18677. Convention dates, Sept. 25, 1947, and Nov. 24, 1947. [Class 87 (ii)] [Also in Groups XI and XXII] Metal powder is forced by a reciprocating plunger 26 through a die 25, the upper (shorter) part of which is in the form of a circumferentially-continuous cylinder 27 and the lower (longer) part of which is split circumferentially by four slots 30. The die is supported by (or may be integral with) four tapered shoes 34 which fit inside a stationary hollow cone 35. The shoes rest on a plate 36 which is urged upwardly by springs 38 which are based on a stationary plate 39 and act through a movable plate 40 and bolts 37. The die is of such length that when it is not expanded it will frictionally prevent all movement of the compressed powdered metal therethrough. When the pressure within the die exceeds a certain value the springs 38 yield, the die and shoes descend momentarily, the lower part of the die expands, and the compacted powder column descends a short distance. The pressure exerted by the springs may be adjusted by means of nuts 37<SP>1</SP>. Metal powder is fed from a magazine 20 to the die by means of a vibrated feeding tray 22 and funnel 24. The plunger 26 is secured to but electrically insulated from the piston-rod 48 of a hydraulic cylinder 41. The compacted metal powder column 56 is sintered by heat from electric current passed therethrough, one electrical terminal being connected to the plate 16 which is in electrical communication with the die 25 and the other electrical terminal being connected to insulated resiliently-mounted contact shoes 57. In order to delay descent of the column to allow completion of sintering, a pair of friction shoes may be disposed around the column below the shoes 57. The die and its appurtenances are contained in a housing 1 which is evacuated of air through an opening 69. The extruded sintered metal column acts as a consumable electrode in a vacuum arc melting furnace, the collecting pot or mould 4 being secured to the bottom of the housing 1.
Patent GB-884850-A (GB)
Title: New pyrazolopyrimidines and process for the manufacture thereof
Filed: 1959-06-01
Abstract: The invention comprises 5-alkyl-6-alkoxy-4-oxo - 4,5 - dihydro - pyrazolo [3,4-d] pyrimidines the pyrazole nucleus of which is N-unsubstituted or N-substituted by an alkyl group, and the preparation thereof by reacting the corresponding 6-halogen derivative with an alkanolate, preferably with an alkali metal or an alkaline-earth metal alkanolate.  The compounds of the invention may also be substituted in the 3-position by an alkyl group. Specifications 884,848, 884,849 and 884,851 are referred to.ALSO:Pharmaceutical compositions comprise 5-alkyl - 6 - alkoxy - 4 - oxo - 4,5 - dihydropyrazolo-[3,4-a ]-pyrimidines where the 1, 2 or 3 positions may be substituted by alkyl groups in admixture or in conjunction with a pharmaceutical carrier.  The preparations may be in conventional forms and may contain further therapeutically active substances.  Specifications 884,848, 884,849 and 884,851 are referred to.
Patent GB-788614-A (GB)
Title: Improvements in or relating to variable capacitors
Inventor: SHEN TZU EN
IPC: H01G5/06
Filed: 1955-06-28
Abstract: 788,614. Variable capacitors. BRITISH DIELECTRIC RESEARCH, Ltd. June 27, 1956 [June 28, 1955], No. 18721/55. Class 37. In a variable capacitor, inter-electrode spacing is reduced by coating one or both sets of plates with a non- hygroscopic, moisture-repellent insulating material having a low coefficient of friction with itself or with metal. As shown, the edges of the interleaving portions are rounded by mechanical, chemical or electro-chemical polishing or may be etched away after coating. The plates may be from 0.01 to 0.1 inch thick, of porous metal, or may be surface-etched to provide a key. Aluminium plates may be anodised. The insulating coating may take the form of polytetrafluoroethylene latex which is afterwards sintered. The coating and sintering processes can be repeated alternately to provide greater thickness; any edge etching is carried out after sintering the first coating. Alternatively, high or low density polyethylene may be applied in molten state or in the form of a solution at elevated temperature. The coatings are preferably 0.125 to 10 mil. thick.
Patent GB-255909-A (GB)
Title: Improvement in the manufacture of artificial silk and other textile fibre
IPC: D06M15/17
Filed: 1926-07-27
Abstract: 255,909. Neutrasol Products Corporation, (Assignees of Pohl, E.). July 27, 1925, [Convention date]. Yarns, treating with liquids.-To facilitate the wording of artificial silk by the throwster, weaver, or knitter, and to enable finer yarns to be used, the filaments are caused to adhere together by the application thereto of a coating which performs the functions of sericin in natural silk, and which can be easily removed. A suitable composition consists of beeswax 3 parts, Japan wax 3¢ parts, stearic acid 3¢ parts, and oleic acid or red oil 1 part. These are melted together and intimately mixed. One part of caustic soda is dissolved in 20 parts of water and the solution mixed with the melted wax mixture. The product is applied in melted condition to the yarn and may be done either by the silk manufacturer or by the user of the yarn. Afterwards, the coating may be removed and the material left clean for dyeing by treating with water at 160‹ F., the caustic soda causing the saponification of the Japan wax, stearic acid, and oil and the emulsification of the beeswax. The treatment may be applied to any textile fibre or yarn.
Patent GB-1280398-A (GB)
Title: Integrated circuit audible alarm system
IPC: H03B5/36
Filed: 1970-04-20
Abstract: 1280398 Audible alarm systems P R MALLORY & CO Inc 20 April 1970 [21 April 1969] 18794/70 Heading G4F An alarm system comprises a transistorized oscillator circuit 2 driving a piezoelectric crystal X1 to generate an audible sound. To make the sound distinguishable from a noise background the supply to input terminal 4<SP>1</SP> is derived from a transistorized switching circuit 1 having a power input B1, the circuit 1 functioning as an oscillator to supply a pulsed supply to terminal 4<SP>1</SP> so that the crystal generates an intermittent sound. To minimize production costs the circuits 1, 2 are similar apart from resistor R1, capacitor Cl and crystal X1. The switching frequency is determined by the resonant circuit components R1, Cl.
Patent GB-637463-A (GB)
Title: Improvements in or relating to electron-discharge tubes
IPC: H01J25/12
Filed: 1947-07-15
Abstract: 637,463. Velocity-modulated tubes ; inductive output tubes. SPERRY GYROSCOPE CO., Inc. July 15, 1947, No. 18831. Convention date, June 28, 1943. [Class 39 (i)] An electron discharge tube of the electrongrouping type contains an electron interceptor electrode in the path of the beam to prevent electrons between longitudinal electron concentrations in the beam from interacting with the energy-extraction field. In the klystron shown in Fig. 1 the electrons from the annular cathode 25 are focused on the disc 18 in the centre of the grid 16 at the end of the drift tube. Electrons in the bunches spread out, owing to mutual repulsion, and pass through the grid whilst electrons between the bunches are intercepted. The disc 18 is joined by a metal rod 21 to the grid at the other end of the. drift tube to assist cooling ; the grid may be as shown in Fig. 3, the radial metal slats 19 being crimped to allow for thermal expansion. In the modification shown in Fig. 4, the envelope has a re-entrant portion 45 having a flat face 46 which acts as an interceptor for the electrons ; the tube 45 also serves to conduct heat away from the face 46. The bunches may also be formed by density modulation. Specifications 523,712, 548,725 and 605,257 are referred to.
Patent GB-244673-A (GB)
Title: Improvements in or relating to devices for measuring lengths
IPC: G01B3/10
Filed: 1925-07-24
Abstract: 244,673. Simplex Sampling Association, Ltd., and Bedington, W. P. July 24, 1925. Advertising on measures of length.-An indicator clip 1 for a tape-measure &c. 3 is formed by turning in the edges 2 of a piece of sheet material, preferably celluloid, and then bending it longitudinally so that the warped part 2a will exert a friction grip on the tape. The clip may be formed by bending a flattened tube. An advertisement may be inserted under the celluloid. The ends of the tape may be provided with a pocket 6 for a memorandum tablet 7, and postal and other information may be printed on the back.
Patent GB-1212523-A (GB)
Title: Method and apparatus for treating gases leaving a zinc blast furnace
Inventor: CATTELAIN CLAUDE
IPC: C22B19/18
Filed: 1967-04-25
Abstract: 1,212,523. Gas-scrubber. IMPERIAL SMELTING CORP. (N.S.C.) Ltd. 9 April, 1968 [25 April, 1967], No. 19004/67. Heading B1R. Lead-containing gases form a zinc blast-furnace are passed via an upwardly inclined duct 2 to a gas-scrubber 6 in which sprays 4 and 7 are so arranged that the entering gases impinge upon a curtain of water. In a modification concentric rings of sprays are provided in the top wall of the scrubber, the sprays being directed inwardly towards the axis of the scrubber.
Patent GB-314088-A (GB)
IPC: H04B1/16
Filed: 1929-06-21
Abstract: 314,088. Telefunken Ges. f³r Drahtlose Telegraphie. June 23, 1928, [Convention date]. Frequency, changing. - The cathode R of a thermionic valve or other discharge tube is heated by the higher harmonics produced by a transformer T, whose core is highly saturated, the lower harmonics and fundamental being eliminated by a rejector circuit L2, C2. A rejector circuit L1, C1 prevents the higher harmonics from returning to the alternating supply n, n, while lagging currents may be prevented from reaching the supply by making the reactance of C1 larger than that of L1, or by providing a byepass condenser Cp. The transformer T may be replaced by a choke, Fig. 2 (not shown), the harmonics being passed through a normal transformer.
Patent GB-871258-A (GB)
Title: Weight checking apparatus
IPC: B07C5/20
Filed: 1958-06-16
Abstract: 871,258. Sorting by weight. FOOD MACHINERY & CHEMICAL CORPORATION. June 16, 1958 [June 17, 1957], No. 19203/58. Class 143 A weight checking apparatus comprises means for continuously moving articles across a weighing platform resiliently preloaded to a position which is maintained for all articles below a predetermined weight and associated with a transducer producing different electric signals according to whether the platform is depressed from the initial position or not and an article segregating mechanism operated through actuating circuit means in accordance with one of the signals to effect segregation of articles of each of the weights. In the form shown, articles of oblong form are fed on to a flexible conveyer 31 on the machine, passing under a star wheel which ensures regular spacing, and are carried across a platform 32 supported by two. V- shaped frames 79, 80 converging on a plate 83 and by two springs 69 (only one shown) bearing on the underside of the platform and a further spring 68 bearing on the underside of the plate 83. A pillar 89 carried by the plate 83 is urged upward by a spiral spring 95, means being provided to vary the tension of the spring for adjusting the weight at which the platform will be depressed. The pillar 89 also carries a rigid support arm 161 on the opposite end of which is mounted the movable core of a transformer 34 having an oscillator in the primary circuit and two opposed secondary windings so that movement of the core due to downward movement of the platform produces an unbalance in the voltages induced in the secondary windings which is used to produce a current which may operate a recording instrument and may be read on a measuring instrument. It is however primarily used to bias the grid of one of a pair of thyratron tubes so that this is prevented from firing. The second tube is connected in the circuit of a photoelectric cell 38, Fig. 6, which is normally illuminated by a lamp 269, the rays of which are cut off by the interposition of an article on the conveyer, thereby putting the tube in a state to fire. The tubes are so arranged that neither will fire unless both are in a conductive state, and this occurs only during the passage of an article of insufficient weight to depress the platform. In that event, the circuit operates a solenoid 293 to move an arm 296 into the path of the article whereby it is turned through 90 degrees from the position in which its long axis is transverse to the direction of travel. As they leave the conveyer 31, the articles traverse two parallel sets of rollers 297, 298 spaced apart so that articles turned through 90 degrees will drop between these into a reject shoot 39.
Patent GB-1066388-A (GB)
Title: Preparation of aromatic hydrocarbons
IPC: B01J23/42
Filed: 1965-05-06
Abstract: Paraffinic naphtha is reformed in the presence of a previously reduced mixed platinum-palladium on alumina catalyst containing 0.1-1.5% of metal of which 25-60% wt. is platinum at 875-990 DEG  F., 0.1-10 w./w./hr. and 200-600 p.s.i.g. with 3-55 mols of hydrogen per mol of hydrocarbon, the charge stock containing less than 100 p.p.m. of water and 25 p.p.m. of sulphur and the effluent containing less than 100 p.p.m. of water.  The naphtha may contain 40-80% of paraffins and 15-50% of naphthenes by volume.
Patent GB-1394322-A (GB)
Title: Method of direct bonding metals to non-metallic substrates
IPC: C04B37/02
Filed: 1973-04-24
Abstract: 1394322 Ceramic-metal seals GENERAL ELECTRIC CO 24 April 1973 [20 April 1972] 19258/73 Heading B3V A metal member is bonded direct to a non- metallic refractory member by placing the members in contact with each other, heating them in a reactive atmosphere to form a eutectic with the metal member which wets both members and cooling the thus bonded members. The process may be used in making vacuum tubes, semi-conductor circuits or high-power circuits. After bonding, the metal member may be etched to produce a desired pattern for an integrated circuit. Metal-ceramic-metal and ceramic-metalceramic bonds may also be made. Non-metallic materials such as alumina, beryllia, fused silica, titanates and spinnels may be used and metals such as Cu, Fe, Ni, Co, Cr and Ag. Alloys may be used such as Cu-Ni, Ni-Co Cu-Cr, Cu-Co, Fe-Ni, Ag-Au, Be-Cu and ternary compositions of Fe, Ni and Co. The reactive atmosphere is a mixture of an inert gas, e.g. argon, helium or nitrogen, with a minor amount of a reactive gas, e.g. oxygen, a phosphorus gas such as phosphine, or a sulphur gas such as hydrogen sulfide. The percentage of reactive gas by volume for good bonds is 0À01-0À5 depending upon the eutectic compound, and a list of eutectics is included which exhibit a eutectic temperature within 50‹ C. of the mp. of the metal. The eutectic is a mixture of atoms of the metal, or generally of the metal of lower mp. in the case of an alloy, and the reactive gas or compound formed between the metal and gas. The process may be performed in a quartz tube 32, Fig. 7, surrounded by R.F. heating coils 35 or in an alternative furnace surrounded by a distance coil, Fig. 6 (not shown).