baber/WOPTO huggingface dataset:
Patent GB-746617-A (GB)
Title: Improvements in pre-stressed concrete construction
IPC: E04C5/12
Filed: 1954-02-05
Abstract: 746,617. Reinforced concrete. BOCK, F. Feb. 5, 1954 [Feb. 9, 1953 ; Sept. 29, 1953], No. 3493/54. Class 20(4). A post-tensioned reinforcement is of hair-pin or closed loop, shape, the tension being applied by a wedge member engaged between the protruding curved part of the loop and a backing plate bearing upon the concrete. When the reinforcements are closed loops E, the free ends are joined by welding, and the loops and the backing plates P are laid in a mould with the ends BS protruding beyond the plates leaving spaces A which are filled with concrete after the tensioning. The plates P have recesses Ke, which locate the ends BS in diagonal fashion, and ribs F between which wedges K are located and guided. Tangs L are bent down from the plates P and become embedded in the concrete. The wedges have flat surfaces to bear upon the plates P and curved surfaces to correspond with the curves of the ends BS. The wedges are driven by hammers, or, if the wedges of a pair are inserted from opposite directions, by a jack which forces them simultaneously towards each.other. In Fig. 5, the reinforcement is of hair-pin form, the free ends 105 each being grooved to receive a split tapered sleeve 107, with complementary grooves, the sleeve being retained by a thimble 110 which bears against the plate 102b. The sleeve, thimble and plates 102b, 102a are assembled on the reinforcement before casting the concrete, and the tension is ultimately applied by forcing home the wedge K. The grooves in the free ends 105 may be spaced and dimensioned non-uniformly.
Patent GB-400820-A (GB)
Title: Improvements in non-skid studs
IPC: A43B21/12
Filed: 1933-02-06
Abstract: 400,820. Horseshoes. WHITAKER, E., College Farm, Ampthill Road, and VEITCH, W., 1, Rosamond Road, both in Bedford. Feb. 6, 1933, No. 3525. [Class 67.] A non-skid stud for horseshoes and the like comprises a block a of non- slipping material with a recess b in its base formed by a straight sided tapered wall c connected at the apex by a short curved concave surface d to afford selfclearance of material lodging in the recess. The recess is approximately one-third the depth of the stud. The studs may be provided with an attaching flange e as shown.
Patent GB-694479-A (GB)
Title: Arrangement for driving a conical tool out of a conical recess provided in a carrier having a slot for driving out the tool
IPC: B23B31/07
Filed: 1952-02-12
Abstract: 694,479. Prizing tools. UNTERNAHRER, J. J., and SCHMIDLIN, J. F. Feb. 12, 1952 [Feb. 16, 1951], No. 3658/52. Class 61 (ii). [Also in Group XXV] Drills &c. are ejected from taper sockets provided with a cam slot by a tool comprising reversely arranged wedges 1, 2. A rib 3 on the wedge 1 slides in a slot on the wedge 2 and has a slot 4 to pass a retaining pin 5. The ends of the wedges enter the forked end of the lever 9 the wedge 2 being pivoted at 8 and the wedge 1 having a slot 10 engaged by a pivot pin 7. The tool is pushed into the slot with the parts in the position shown and movement of the lever in the direction of the arrow causes relative movement of the wedges and ejects the tool. In a modification the wedges taper in the same direction.
Patent GB-1370894-A (GB)
Title: Extrusion
IPC: B21C23/00
Filed: 1972-01-26
Abstract: 1370894 Extruding UNITED KINGDOM ATOMIC ENERGY AUTHORITY 16 Feb 1972 [12 March 1971 26 Jan 1972] 6778/71 and 3668/72 Heading B3P [Also in Division B5] An extrusion apparatus for material, e.g. metal, in solid or powder form comprises a rotatable wheel 1 with a circumferential groove 3 and a shoe 4 which fits over part of the periphery of the wheel to enclose the groove and has an abutment 5 in or adjacent to which a die aperture 6 is formed and through which material is extruded under the force applied by at least partly the frictional drag of the groove walls on the material as the wheel is rotated. The shoe may have an integral billet container 7 with its own ram or the metal may be in bar form, Fig. 4, fed by rollers to the groove. If the metal is in powder form it is fed by a screw feeder or by gravity to the groove. The die may have more than one aperture or the aperture may be elongated or suitable for tubes, Figs. 5-9 (not shown). Two or more shoes may be arranged around the wheel, Fig. 4. In an alternative embodiment the die is mounted on a rotary carrier 13, Fig. 10, as in Specification 1,289,482. The groove 3 may be square, rectangular or V-shaped. The abutment need not fit exactly in the groove so that the contaminated outer surface is forced between the groove and abutment as flash.
Patent GB-694525-A (GB)
Title: Improvements in electric capacitors
Inventor: HUGGETT JOHN PHILIP
IPC: H01B3/48
Filed: 1951-02-15
Abstract: 694,525. Electric condensers. BRITISH DIELECTRIC RESEARCH, Ltd. Feb. 14, 1952 [Feb. 15, 1951], No. 3716/51. Class 37. [Also in Group VIII] The dielectric of a condenser comprises a spacer of pure regenerated cellulose impregnated with a semiconducting liquid. Regenerated cellulose (e.g. that known under the Registered Trade Mark " Cellophane ") is leached with water which may contain alcohol to remove the plasticizer, and if necessary washed again with water to obtain material of the required purity which is defined as having a D.C. resistivity of not less than 1 x 10<SP>14</SP> ohm-cms. when dried. The impregnant may be tricresyl phosphate with wood rosin, aniline, m-dinitro-benzene beta-naphthol, glacial acetic acid, cresol, phenol, or alpha-naphthyl amine ; other combinations may be cresol with dibutyl phthalate or dibutyl tartrate, dibutyl tartrate with trichlor-benzene or dibutyl phthalate; nitro-benzene or cinnamic aldehyde may be used alone; all impregnants must have an A.C. resistivity, measured at 20‹ C., at a frequency of 50 c.p.s. and at a voltage not greater than 15 volts, of 1-100 megohm-cms.
Patent GB-489511-A (GB)
Title: Improvement in roller-and-trough apparatus for finishing fabrics
IPC: D06C29/00
Filed: 1937-02-08
Abstract: 489,511. Controlling A.C. motors. GESSNER AKT.-GES., E., and WENZEL,E. Feb. 8, 1937, No. 3723. Addition to 435,986, [Group VIII]. [Class 38 (iii)] [Also in Group VIII] In a fabric-calendering machine as claimed in the parent Specification, the motor for producing the pressure between the trough and the roller is now a three-phase induction motor r with a switch 4 in its main circuit and on the same shaft as the switch a three-phase resistance 10 in the rotor circuit of the motor, an ammeter 14 in this circuit being graduated to give pressure reading between the trough and roller of the calendering machine. Between the switch 4 and the motor stator are two resistances 15, 16 which are short circuited periodically by a rotary switch 17 geared to the calendering roller, or by a hand switch 24.
Patent GB-249281-A (GB)
Title: Improvements in stands for displaying umbrellas, textiles and the like
IPC: A47F5/06
Filed: 1925-02-10
Abstract: 249,281. Finlay, J. B. Feb. 10, 1925. Rack stands; umbrella and like racks.-A stand for displaying umbrellas &c. comprises a telescopic pedestal C mounted upon a base D, formed with holes to receive the ends of umbrellas &c., and provided with a flat pivoted head A carrying a number of metal hooks B each formed with a stem slidably arranged in an aperture in the periphery of the head and secured by a set screw E. The head may be tilted and the loops B used for displaying handkerchiefs, gloves, &c. When the loops B are removed the stand may be used for supporting a glass shelf or for displaying piece goods.
Patent GB-1467046-A (GB)
Title: Process for producing methyl methacrylate polymers
IPC: C08F2/00
Filed: 1975-01-28
Abstract: 1467046 Bulk polymerizing methyl methacrylate MITSUBISHI RAYON CO Ltd 28 Jan 1975 [4 Feb 1974] 3751/75 Heading C3P In the continuous bulk polymerization of methyl methacrylate, optionally containing up to 20% of comonomer, at 150-180 C. to 50- 80% conversion with separation and recycle of volatiles, the volatiles are treated to remove polymers of molecular weight 186-1000 and the content of impurities boiling below 200 C. is maintained in the range 5-20%, e.g. by bleeding off part of the recycle.
Patent GB-189696-A (GB)
Title: Improved tool for facilitating removal of valves of internal combustion engines
IPC: B25B27/26
Filed: 1922-02-09
Abstract: 189,696. MacGregor, R. H., and Duncan, A. F. Feb. 9, 1922. Prizing-tools; pliers.-Tools for facilitating removal of the valves of internal-combustion engines of the kind comprising two pivoted members providing gripping handles on one side of the pivot and forked jaws on the other side of the pivot, are formed of two flat metal strips 1, 2, pivoted together by a pin 7, the jaws 3, 4 being produced by twisting the metal through 90‹. After the valve spring has been compressed, the members may be locked by the sliding ring 8, accidental removal of which is prevented by splaying the handles 5, 6 outwardly.
Patent GB-594475-A (GB)
Title: Polymeric detergents
IPC: C09B67/46
Filed: 1945-02-15
Abstract: Water-soluble surface-active resinous products are made by heating a phenol substituted by a hydrocarbon radical of at least four carbon atoms with formaldehyde in the proportion of 0.5 to 1 mol. of formaldehyde to 1 mol. of phenol to form a condensate and heating the said condensate with eight or more mols. of an alkylene oxide. Hydrocarbon radicals specified are n-butyl, iso-butyl, tert.-butyl, amyl, tert.-amyl, n-octyl, diisobutyl, decyl, dodecyl, hexadecyl, octadecyl, cyclohexyl, methylcyclohexyl, butylcyclohexyl, dicyclohexyl. Aryl-substituted phenols, such as p-phenyl-, p-tolyl and p-naphthyl-phenol may be employed, as also mixtures of phenols, e.g. of p-tert.-amyl-and p-diisobutyl-phenols.  The formaldehyde may be used as a solution, as paraformaldehyde, or as a formal or hexamethylene tetramine, and may be heated with the phenol in the presence of solvents and/or acid catalysts.  Alkylene oxides specified are ethylene, propylene, trimethylene, butylene and isobutylene oxides, and these may be used with an alkali metal hydroxide as catalyst.  At least eight mols. of alkylene oxide per mol. of phenol is preferred and proportions of ten to twenty and sixty are mentioned; mixtures of oxides, e.g. ethylene and propylene, may be employed.  In examples: (1) p-(a ,a ,g ,g -tetramethylbutyl) phenol, and (2) p-octadecylphenol are reacted with formaldehyde and the product is reacted with ethylene oxide.  The product are used in the laundering of cotton fabrics, the scouring of wool, sized, dyed and printed fabrics, the preparation of dispersions, the treatment of leather, dispersing of pigments and in dyeing.  Specification 494,769 is referred to.
Patent GB-597211-A (GB)
Title: Improvements in or relating to presses for moulding tyres
IPC: B29D30/06
Filed: 1944-03-02
Abstract: 597,211. Presses for moulding and vulcanizing tyres. DUNLOP RUBBER CO., Ltd., and NORCROSS, T. March 2, 1944, No. 3895. [Class 87 (ii)] One mould section is transversely moved (for the initial stripping of the tyre &c. from the mould surfaces), by means attached to the other section, whilst the sections are opening and closing. Two constructions are described. Fig. 2 shows a press having two mould sections 1, 2, which are opened and closed by linkage 17, guide 18 and fluid-pressure unit 19 as described in Specification 573,101. The lower section is hinged on a fixed pin 3 and the upper section is hinged on a pin 4 which is vertically adjustable in links 6 pivotally mounted on the pin 3. Rigidly secured to the lower section and extending rearwardly of the pin 3 are brackets 10 each carrying a spring-loaded plunger 11 which engages a notch 9 in a link 6. As the press opens, mould section 1 descends and the brackets 10 rise, i.e., turn clockwise about pin 3, and this turning movement is transmitted by plungers 11 to links 6 which also turn clockwise. Accordingly, the pin 4 and the upper section 2 move to the right. Movement of links 6 is limited by stops 23, 24. Fig. 3 shows a press having a lower section 29 which is vertically stationary but horizontally slidable. As the upper section 26 pivots upwardly about a pin 27, a spring-loaded plunger 31 carried thereby rocks clockwise a link 32 (pivoted on 27) to push section 29 to the left. Stops 35, 37, limit the sliding movement. Specification 526,659 also is referred to.
Patent GB-1389451-A (GB)
Title: Method of and apparatus for treating tobacco
IPC: A24B3/04
Filed: 1972-01-27
Abstract: 1389451 Treating tobacco HAUNI-WERKE KORBER & CO KG 27 Jan 1972 [27 Jan 1971 29 June 1971] 3931/72 Heading F4G Tobacco is treated in a first section 2 by passing a first air stream through the tobacco leaving the section 2 and then through the tobacco entering-the section 2, and in a second section 3 by passing air firstly through the tobacco entering the section 3 and then through tobacco leaving the section 3. Tobacco is conveyed through the first section 2 by air- .permeable vibrating conveyers 7, 8, 9 (or belt or rotary drum conveyers), and heated air is supplied to the section 2 by a fan 38 and exits at 44. The tobacco may be fluidized by the vibration and air streams. Tobacco is conveyed through the chambers 11, 12, 13 of the second section 3 by the conveyer 9, and heated air is supplied to the first chamber 11 by a fan 54, passes via conduits 57, 58 to the chambers 12, 13 and exits at 59. The air entering at 44 passes through a conduit 43 to a fan 77 which delivers it to a third section 4, temperature and moisture sensors 84, 86 controlling a heater 94 and a water injector 98 so that the air is at a pre-set temperature and moisture content in order that the air is substantially in hygroscopic equilibrium with the tobacco. The moisture content of the tobacco is detected at 99 and compared with a reference value at 71 to control a mixture shutter 67 adjusting the ratio of heated air and ambient air supplied by the fan 54 to the first chamber 11. In a modification, the moisture content of the tobacco is measured before it enters the first section 2 and compared with a reference value to control a mixture shutter (like shutter 67), in the duct 41 of the fan 38. The tobacco is supplied at a constant rate to the first section 2 via a weighing conveyer. In a further modification, the moisture content of the tobacco is measured following the second section 3 and before the third section 4 and compared with a reference value to control the mixture shutter 67.
Patent GB-123819-A (GB)
Title: Improvements in Wheelbarrows.
Inventor: SHIPWRIGHT WILLIAM GEORGE
IPC: B62B1/20
Filed: 1918-03-06
Abstract: 123,819. Shipwright, W. G. March 6, 1918. Wheelbarrows.-A wheelbarrow which can be readily taken to pieces and put together again comprises a pair of side frames or members B, C, D connected by bolts F, G, H, a body or pan A having lugs a for engagement beneath flanges b or other projections on the bars B, and the wheel E, the axle of which has bearing in holes e in the side members. The vehicle is preferably constructed wholly of metal. The side members can be laid flat one upon the other when disconnected.
Patent GB-538964-A (GB)
Title: Improvements in disconnectible couplings for pipes or the like
IPC: F16L37/084
Filed: 1940-03-02
Abstract: 538,964. Pipe couplings. AUSTIN, R. W. March 2, 1940, No. 3960. [Class 99 (i)] In a disconnectible coupling for pipes or the like conveying pressure fluid, a conical spigot 25 engages a conical socket 12 and compresses a soft washer 18, at the same time opening a valve 23 to allow passage of fluid, the coupling- members being held together by locking- catches 29 closed by a stout rubber ring 36, also serving as a cushion to prevent damage to the coupling. The stems 21, 22 of the valve may be of flat, triangular, square, or other section allowing the fluid to pass.
Patent GB-650565-A (GB)
Title: An alarm-operating mechanism for protecting vehicles against unauthorised removal
IPC: B60R25/10
Filed: 1948-02-11
Abstract: 650,565. Inertia switches. REEVES, H. A. Feb. 11, 1948, No. 4001. [Class 38(v)]. [Also in Group XXXVIII] An alarm-operating mechanism for protecting vehicles against unauthorized removal (see Group XXXVIII), comprises a pair of contacts 1, 1, respectively mounted on a pair of vibratory reeds 2, 2, weighted at 6, 6 to have the same periodicity so that the reeds move in unison for small deflections. Larger deflection of the lower reed is impeded by the casing 5 (adapted to be secured to the vehicle) so that should the vehicle be shaken the reeds vibrate out of unison and contacts 1, 1 close intermittently to complete an alarm circuit. In a modification (Fig. 2, not shown), the two reeds are symmetrically disposed and stops 7 are provided to destroy the unison of large vibrations.
Patent GB-1283411-A (GB)
Title: A method of jointing electric cables
IPC: H02G15/00
Filed: 1969-01-23
Abstract: 1283411 Mastic DUSSEK BROS Ltd and G E BENNETT 23 Jan 1970 [23 Jan 1969] 4015/69 Heading C3N [Also in Division H2] A mastic used in encapsulating an electric cable and comprising a major proportion by weight of a finely-divided inorganic filler and a minor proportion by weight of an oleaginous medium consisting of a major proportion by weight of a mineral oil, a synthetic polymeric stiffener and a natural or synthetic wax having a melting point of at least 85‹ C. is as disclosed and claimed in Specification 1,283,412.
Patent GB-123828-A (GB)
Title: Improvements in or relating to Fastening-means for Recording and like Instruments in Dashboards and the like.
IPC: B60K37/00
Filed: 1918-03-07
Abstract: 123,828. Smith & Sons, S., and Dorer, P. O. March 7, 1918. Mounting and supporting indicating and recording apparatus.-A device for mounting instruments on the dashboards of motor-vehicles or similar boards or plates consists of a U-shaped plate A, which is placed behind the board through which the instrument projects, and carries a pair of spring members D, the arms D<2> of which engage studs K on the instrument. The instrument is provided with a flange P resting against the front of the dashboard. In a modification the spring members D are replaced by pivoted members the lower ends of which are engaged by springs or adjustable screws.
Patent GB-695897-A (GB)
Title: Multiple electrode polyphase arc welding
IPC: B23K9/067
Filed: 1951-02-19
Abstract: 695,897. Supply systems for welding arcs. UNION CARBIDE & CARBON CORPORATION. Feb. 19, 1951 [March 7, 1950], No. 4048/51. Drawings to Specification. Class 38 (iv). In the method of arc welding wherein the respective phases of a polyphase current source are connected one to the work-piece and the remainder to a plurality of electrodes positioned along the direction of welding, and wherein during progressive advance of the work-piece or electrodes in this direction the arcs of the separate electrodes are directed towards a common zone of fusion whilst substantially constant voltage is maintained across each arc (for instance by automatic and independent feeding of the electrodes), the phase angle difference between the electrode currents is so regulated that at least the trailing arc assumes a forwardly-inclined position during the major part of its vibratory cycle. Thus two electrodes and the work-piece may be supplied from mesh-connected secondary windings of a three-phase transformer, the required phase angle distribution being obtained by variable reactors in the three secondary output leads. Alternatively, in the case of an open V supply to the electrodes and work-piece, the required phase distribution may be obtained by a single variable reactor in the phase connection to the work-piece. The phase angle difference between the leading electrode current and the trailing electrode current should be adjusted to between 70 and 140 degrees, preferably between 107 and 120 degrees.
Patent GB-1020301-A (GB)
Title: A method of rendering the surface of a body of plastic material anti-static
IPC: C08J7/044
Filed: 1964-01-30
Abstract: The invention comprises the use, as antistatic agents, of siloxanes containing sulphate ester groups which are described in Specification 942,812.  Further examples of their preparation are given.ALSO:The surface of a body of plastic material is rendered antistatic by treating it with a siloxane containing the unit ­SiMOSO3X, wherein M is an alkylene or substituted alkylene radical of at least 3 C atoms, and X is H, a metal equivalent of H or an ammonium or substituted ammonium group.  The siloxanes are described in Specification 942,812 (See Div. C3). The siloxanes may be used in the form of aqueous and/or alcoholic solutions or in the form of aerosols which are suitable for treating large surfaces, e.g. textiles of synthetic fibres, such as curtains, rugs and wearing apparel.  If desired the siloxane can be permanently fixed on textile fibres, by treating them with the siloxane in conjunction with a fixing agent, e.g. zirconium oxychloride or acetate, with subsequent thermal curing.  In Example (2) the siloxane was worked into a spinning preparation for polyester fibres.  Mention is also made of the use of the p  siloxanes in preparations for the setting of human hair.ALSO:The surface of a body of plastic material is rendered antistatic by treating it with a siloxane containing the unit ­SiMOSO3X, wherein M is an alkylene or substituted alkylene radical of at least 3 C atoms and X is H, a metal equivalent of H or an ammonium or substituted ammonium group. The siloxanes are described in Specification 942,812 (see Division C3).  The siloxane may be used in the form of an aqueous or alcoholic solution, e.g. by wiping the surface of a photographic film or gramophone record with a cloth impregnated with a solution of the siloxane, or by immersing plates or records in solutions of the siloxane, or by spraying in the form of an aerosol.  In examples, (1) a gramophone record made from a mixture of polyvinylchloride and polyvinylacetate was treated with an aqueous-alcoholic solution of the siloxane; (3) polyvinylchloride plates, and (4) polyethylene plates were dipped in aqueous and aqueous-alcoholic solutions, respectively, of the siloxane and heat dried.