baber/WOPTO huggingface dataset:
Patent GB-456186-A (GB)
Title: Improvements in or relating to trolley wires
IPC: B60M1/13
Filed: 1935-08-26
Abstract: 456,186. Electric trolly wires. HURST, T. H., P.O. Box 6924, Johannesburg, South Africa. Aug. 26, 1935, No. 23859. [Class 104 (iii)] In a trolly wire, the curved surfaces d of the wearing area and the longitudinal grooves c for the suspension ears are disposed between top and bottom surfaces a, b, which are flat, the top surface being wider than the bottom surface but narrower than the greatest width of the wire. The dimensions may be as specified on the drawing.
Patent GB-1021512-A (GB)
Title: Water dilutable surface coating modified phenolic resins
Inventor: MASSY DEREK JAMES ROWLAND
IPC: C08G8/28
Filed: 1962-06-21
Abstract: A water-dilutable resin as hereinafter defined contains groups <FORM:1021512/C3/1> wherein <FORM:1021512/C3/2> is a phenolic residue forming part of a phenolic resin molecule having a plurality of phenolic groups, -O.CO.Z- (COOH)n+1 is an ester group derived from an anhydride having the formula <FORM:1021512/C3/3> wherein n is O or an integer, M is a saturated aliphatic hydrocarbon group in which the carbon atoms of the backbone chain may be hydroxy-substituted, Y represents an alkenyl group having b ,g -unsaturation with respect to the ether oxygen and Z is an organic polyvalent group. Water-dilutable is defined as meaning that a solution of the resin in the presence of a base either in water, or in a mixture of water and a water-miscible solvent, can be diluted with water without precipitation to produce aqueous solutions or stable dispersions which can be used to make aqueous paints or primers which can be applied directly to a surface to be protected.  The water-dilutable resins are prepared by etherifying a phenolic resin containing a plurality of phenolic groups with a b ,g -unsaturated alkenyl glycidyl ether and esterifying the product with an anhydride of the above formula.  Alternatively, the polyglycidyl ether of the phenolic resin may be formed by reacting the resin with epichlorohydrin and then etherified with a b ,g -unsaturated alcohol and finally esterified with the anhydride.  Phenolic resins specified are novolac resins, polyphenols and spaced polyphenols. Free secondary hydroxyl groups in the water-dilutable resins may be esterified with drying oil fatty acids, and the carboxyl groups may be neutralized with ammonia or amines.  Air-drying of the water-soluble resins may be accelerated by the usual driers.
Patent GB-714314-A (GB)
Title: Method and apparatus for cutting electrical heating elements from metal foil
IPC: B23D29/02
Filed: 1952-09-24
Abstract: 714,314. Electric heating resistances. DUNLOP RUBBER CO., Ltd., and TREVASKIS, H. W. Aug. 27, 1953 [Sept. 24, 1952], No. 23906/52. Class 39 (3) [Also in Group VIII] A crenellated electrical heating elements, e.g. for aircraft de-icing, is formed by slotting a strip 2 of metal foil (see Group VIII). The strip 2 may be of approximately 0.002 to 0.008 inches thick and of the order of ¢-4 inches wide. The tongues 10 formed by slotting the strip 2 may each be of the order of 0.125 to 0.25 inches wide, and the slots 9 between the tongues may each be 0.005 inches wide.
Patent GB-157509-A (GB)
Title: An improved electrode for use in depositing molten metal, and process or method of making same
IPC: B23K35/02
Filed: 1919-09-30
Abstract: 157,509. Boorne, W. H. Sept. 30, 1919. Uniting by fusion.- An electrode for arc welding is made by closely winding a metal core a with one oi more e carbonaceous threads b, which have been soaked in a flux mixture, and during or after the winding applying a further quantity of flux, say by extrusion. Superfluous flux may be removed by a smoothing die. Specification 132,354 is referred to.
Patent GB-1184702-A (GB)
Title: Novel High Bulk Continuous Filament Low Stretch Yarn
IPC: D02G1/02
Filed: 1967-05-23
Abstract: 1,184,702. Bulky yarns. MONSANTO CO. 23 May, 1967 [31 May, 1966], No. 23968/67. Headings D1F and D1W. A synthetic continuous filament singles yarn of low stretch and high bulk comprises a substantially straight load-bearing core composed of at least one filament, surrounded by and having bonded thereto a bulk-imparting sheath made up of a plurality of textured filaments. In the apparatus shown one or more ends 12 of the sheath filaments are drawn about heated pin 17, crimped by gears 18 which may be positively cooled and overfed to splitter pin 10, while one or more ends of the core filaments are drawn about draw pin 7, receive a bonding agent at 9 and are combined with the sheath filament at pin 10. The filamentary bundle is false-twisted by a friction or spindle falsetwister 19 with the twist running back into heating zone 20 where the sheath filaments are bonded to the core filaments, passed about draw roll 21, 22, optionally relaxed - for example using a plural stage heating and relaxing procedure - and then wound up, with or without twist. The process may be modified by replacing the gear crimping by edge, false-twist, or stuffer box crimping, by drawing the filaments in more than one stage, and/or by drawing and crimping the filaments separately from the combining step. The'filaments of the core and sheath may be of the same or different material, for example a polyolefin, a polyurethane, a vinyl or acrylic polymer, a polyamide or a polyester, be of circular or triskelion cross-section and have the same or different denier per filament, and total denier. The filaments may be bonded by using a solvent for the filaments, numerous examples of solvents being given, an adhesive or a process of bonding polyamides using gaseous hydrogen halide or boron trifluoride. The yarns may be plied. Fabrics described have the weft comprised of a nylon 66 yarn foamed as shown in the drawing and the warp of a similar yarn in a birdseye weave, of a ordinary nylon 66 yarn in a plain weave, of acrylic stable yarn in plain basket or twill weave, or of false-twist crimped nylon yarn to form a stretch fabric.
Patent GB-169438-A (GB)
Title: Improvements in acoustical apparatus for telephonic communication
IPC: H04R1/22
Filed: 1921-09-08
Abstract: 169,438. Signal Ges. Sept. 27, 1920, [Convention date]. Magnetic instrumemts; microphones. - Microphones and telephone receivers are constructed of two or more coupled vibratory structures formed of solid bodies whose natural periods are such that the frequencies of the coupled structure form the limits between which lie the frequencies for which the apparatus is intended. In the microphone shown in Fig. 2, the two vibratory structures are the diaphragm P and microphone proper M. The latter comprises two electrodes O1, O2 connected together by elastic members such as spring bows b, b1. In a telephone receiver, Fig. 3, one vibratory member is the diaphragm P, the other being the magnet system, which is preferably in two parts m1, m2 connected together by the elastic members e, e1. These are coupled again with an air space R. The vibratory structures are preferably so coupled that the damping is greater than the coupling, where damping is " the logarithmic decrement of two successive oscillations " and coupling is the ratio of energy put in on one side to that taken out on the other.
Patent GB-392793-A (GB)
Title: Mouthpiece or tube for cigars and the like
IPC: A24D1/04
Filed: 1932-08-27
Abstract: 392,793. Cigar &c. holders. BRUUN, R. E. G., 60, Vildersgade, Copenhagen. Aug. 27, 1932, No. 23994. Convention date, Feb. 27. [Class 130.] A holder for cigars, cheroots, or cigarettes, having a screw-thread B for engaging the cigar &c. D is so short that in use the holder is concealed by the lips E of the smoker. A restriction C is engaged by the teeth F and the part of the holder behind the restriction is of smaller length and diameter than the part in front. Reference has been directed by the Comptroller to Specification 7163/15, [Class 130, Tobacco].
Patent GB-1056727-A (GB)
Title: Gate valves for plastic melts
IPC: B29C48/50
Filed: 1965-06-04
Abstract: 1,056,727. Valves. K. H. SCHMIDT, and E. ROETHE, [personal representatives of H. J. ZIMMER lately trading as HANS J. ZIMMER VERFAHRENSTECHNIR]. June 4, 1965 [June 6, 1964], No. 24016/65. Heading F2V. A cylindrical plug-lift valve for plastic melts comprises a closure 25, the Figure not shown, which is moved axially by a rod 27 to control flow from an inlet 2 to an outlet 7. Plug 25 cooperates with a sealing ring 14 which forms a seat and a sealing ring 13 is acted upon by a gland 19 and closes one end of a housing 2, the other end being closed by ring 21 and gland 22. Adjacent rings 13 and 14 are stripping rings 15 and 16 which clean the plug and are formed from carbon rings backed with metal. The connections 2 and 7 may be reversed.
Patent GB-707727-A (GB)
Title: Saw blade
IPC: B23D61/12
Filed: 1952-09-25
Abstract: 707,727. Saws. JONSSON, L.H. Sept. 25, 1952, No. 24032/52. Class 145 (2) A saw blade has consecutive groups of four teeth in each of which the outer cutting teeth 1, 4 have cutting edges 5, 6 substantially normal to the longitudinal direction of the blade and cutting edges 7, 8 sloping downwards towards the middle of the group and the intermediate sawdust-grinding teeth 2, 3 have bevelled cutting edges 9, 10 at their tips; the slope of the edges 7, 8 is less than the slope of the edges 9, 10 and the adjacent teeth 1, 4 of two groups have their cutting edges 5, 6 facing each other and are sharpened and set from the same side of the blade. The bottoms of the spaces between adjacent teeth 1, 4 are also bevelled to assist sawdust removal. The back of the blade is preferably hollow-ground and, if sufficiently hollow-ground, no setting is necessary for sawing dry wood.
Patent GB-346642-A (GB)
Title: Improvements in dry gas meters
IPC: G01F3/22
Filed: 1930-08-11
Abstract: 346,642. Gas meters. ALLGEMEINE ELEKTRICIT€TS-GES., 2, Friedrich Karl- Ufer, Berlin. Aug. 11, 1930, No. 24064. Convention date, Aug. 17, 1929. [Class 54.] The gas meter casing c, d is divided into two measuring chambers a, b by the valve chamber e and a diaphragm f, and the valve change-over mechanism and the counting mechanism y are arranged outside the measuring chambers under a removable cover x. The central stiff part of the diaphragm is suspended from a pivoted stirrup f<1> so that the diaphragm is swung in pendulum fashion by the gas entering one measuring chamber through the valve g<3> or g<4> and leaving the other measuring chamber through the valve g<1> or g<2>. The diaphragm is connected by hinged links m, m<1> to a rocking spindle n which projects through a stuffing-box outside the chamber b and carries a projection p adapted, as the diaphragm approaches its end positions, to engage the forked end of a lever q and move it past its dead-centre position. The movement of the lever to one of two end positions is completed by a spring r. The movement of the lever q is communicated by a fork q<2> to an arm u<1> on a spindle u which projects through a stuffing-box into the measuring chamber b and carries an arm w operating the cross-bar w<3> connecting the valve rods w<1>, w<2>. The opening and closing of the valves is made more rapid by a tipping spring s, which is weaker than the spring r, engaging an arm t on the spindle u.
Patent GB-775119-A (GB)
Title: Improvements in and relating to the recovery of mineral values
Inventor: STEDMAN RONALD EDWIN
IPC: C01G43/01
Filed: 1954-08-18
Abstract: Uranium values are recovered from uranium-containing phosphatic materials in which the uranium is present in the hexavalent state by subjecting them to an extraction with aqueous alkali metal or ammonium carbonate or bicarbonate and thereafter precipitating phosphate ion from the resulting solution by treatment with a cation giving rise to an insoluble phosphate, separating the liquor from the insoluble phosphate thus produced and subjecting the liquor to further treatment by known means to recover the uranium values.  If the uranium is not present in the hexavalent state the material is treated with an oxidizing agent such as a dichromate or permanganate of an alkali metal or hydrogen peroxide to attain the hexavalent state.  The phosphatic materials employed may be rock phosphates or concentrates containing uranium phosphates obtained in the working up of rock phosphates, or alternatively ammonium uranyl phophate such as is obtained in the process of Specification 768,946 may be employed. According to an example ammonium uranyl phosphate obtained by opening up rock phosphate as described in Specification 768,946 was extracted with an aqueous solution of sodium carbonate at 20 DEG C.  Magnesium sulphate was then added to precipitate the phosphate ions and after stirring the liquir was filtered off as a solution of sodium uranyl carbonate.  This solution was acidified with nitric acid to decompose the carbonate, amyl alcohol added as an anti-frothing agent and the resultant solution was neutralized with ammonia liquor to precipitate the uranium as an ammonium di-uranate. Alternatively the alkali metal uranyl carbonate solution obtained by the extraction may be directly treated with an alkali metal hydroxide to precipitate an alkali metal diuranate but preferably the liquor is first acidified with a mineral acid and then treated either with an oxidizing agent to precipitate hydrated uranium tetra oxide or alternatively with an alkali metal hydroxide thereby precipitating alkali metal di-uranate. Specification 730,230 also is referred to.
Patent GB-701415-A (GB)
Title: Improvements in electric fuses
IPC: H01H85/055
Filed: 1951-10-17
Abstract: 701,415. Fusible cut-outs. CRABTREE & CO., Ltd., J. A., and CARDING, J. T. Oct. 9, 1952 [Oct. 17, 1951], No. 24193/51. Class 38 (1) A fuse comprises a silver fuse element (or elements) Fig. 2 (not shown) b which is threaded through apertures a<SP>1</SP> in a plate a (or plates) of metal or alloy of low melting- point, such as leadtin. The element is inserted in a cartridgefuse casing c, asbestos rings d being placed on the ends and the ends of the element bent over them. One end of the casing is sealed by an inner apertured contact cap e, an asbestos washer #, and an outer contact cap g. The casing is then filled with sand, and the other end sealed similarly by two caps k, g<SP>1</SP> and a washer f.
Patent GB-1466986-A (GB)
Title: Catalysts comprising a metal halide salt on an interstratified synthetic alumino-silicate carrier
IPC: C07C21/12
Filed: 1974-05-31
Abstract: 1466986 Oxychlorination catalyst VULCAN, MATERIALS CO 31 May 1974 [4 June 1973] 2,4203/74 Heading B1E [Also in Division C2] An oxychlorination catalyst comprises a copper halide deposited on a carrier comprising a synthetic aluminosilicate of mixed layer or interstratified crystal structure with randomly alternating layers of montmorillonite-like (smectite-like) and mica-like (illite-like) structure, the copper halide being present in an amount to provide 2-15% wt copper calculated as metal on the basis of such metal and the carrier. The catalyst may further comprise 1-15% wt, alkali metal chloride and a crystalline molecular sieve component. The interstratified aluminosilicate may be of the form  n SiO 2  : Al 2 O 3   m AB :  x H 2 O wherein B is a negative ion internal to the lattice, e.g. F-, OH- or O<SP>2-</SP>; A is one equivalent of an exchangeable cation having a valence not greater than 2, e.g. H<SP>+</SP>, NH 4 <SP>+</SP>, Na<SP>+</SP>, K<SP>+</SP>, Li<SP>+</SP>, ¢Ca<SP>2+</SP>, ¢Ba<SP>2+</SP>, ¢Mg<SP>2+</SP> or ¢Sr<SP>2+</SP> and is external to  the lattice; n is from 2.4 to 3.0; m is 0.2  to 0.6 and x is 2.0 to 3.5 at 50% relative  humidity. A dehydrated form of the same material may also be used. The Examples describe compositions containing copper and sodium or potassium chlorides.
Patent GB-868951-A (GB)
Title: Improvements in or relating to electrical information transmitting or recording systems
IPC: H04L25/49
Filed: 1957-07-31
Abstract: 868,951. Electric selective signalling systems. MINNEAPOLIS - HONEYWELL REGULATOR CO. July 31, 1957 [Aug. 1, 1956], No. 24284/57. Class 40 (1). Apparatus in which data is represented by " 0's " and " 1's " in the form of dots and dashes and in which a dot normally represents a " 0 " and a dash normally represents a " 1 " includes a circuit arrangement adapted to complement each bit of data in a block of data if the block contains more " 1's " than " 0's ." The arrangement is applicable to data processing apparatus such as electrical computers and telegraph systems. Data is recorded as dots and dashes, Fig. 1, on magnetic tape or as ink mark or punchings or alternatively the ends of dots and dashes may be indicated by pulses, markings or punchings (Fig. 2, not shown). A data processor 15, Fig. 3, has a serial output 16 from which binary data is to be transmitted or recorded. A block of N bits of data passes thence to a serial storage line 17 comprising N storage positions whose parallel output may take one of two possible forms indicating a " 1 " or a " 0," the digit which is actually passed to a further shift register storage line 18 being selected under the control of a complementing control circuit 21. A counter 20 counts the number of " 1's " passing into the storage line 17 and provides an output to the control circuit 21 if the number of " 1's " is greater than the number of " 0's " thereby activating a line C for each digit position which is effective to open a gate 19 and store a " 1 " in the N+1 position of the register 18 which indicates that complementing has taken place and to open the " and " gate N if N (regarded as a representative digit) is a " 0 " (an output N is operative) thereby passing a " 1 " to the register 18, the gate N remaining closed if N is a " 1 " (the output N is operative) to pass a " 0 " to the register 18. If the number of " 1's " is less than the number of " 0's " a line C is activated and the gate N passes the digit N without complementing it. In a modification (Fig. 5, not shown) particularly suited for telegraph signalling, the output from the data processor passes directly to a shift register whose serial output at the other end is complemented or not complemented according to the count of " 1's." A receiver circuit (Fig. 6, not shown) is described which is arranged to receive the data transmitted by the circuits of Figs. 3 or 5. This circuit includes means to sense the additional data positions N+1, Fig. 3, where the presence of a " 1 " indicates that complementing has occurred and to complement the incoming data thereby restoring it to its original state if such complementing has occurred.
Patent GB-963222-A (GB)
Title: A method of improving p-n junctions
IPC: H01L21/24
Filed: 1961-07-05
Abstract: 963,222. Semi-conductor devices. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. July 5, 1961 [July 8, 1960], No. 24286/61. Heading H1K. If in the manufacture of a semi-conductor device a PN junction produced by a conventional alloying process is found to have inadequate rectifying properties, the semi-conductor body is etched in the region of the junction and subjected to a second alloying process without the addition of further alloying material. The example described relates to the alloying of gold/antimony pellets to silicon bodies. It is advantageous to wash the semiconductor body with petroleum ether after the etching, and best results are achieved if the second alloying stage is carried out under the same conditions as the first, although cooling down of the melt after the second stage may be carried out more slowly than after the first. The body may be etched after completion of the second alloying process.
Patent GB-850366-A (GB)
Title: Improvements in or relating to domestic detergents
IPC: C11D17/00
Filed: 1956-08-09
Abstract: A detergent block comprises a synthetic detergent, suitably sodium dodecylbenzene sulphonate, a filler or binder, and a deodorant and/or germicide such as hexachloroprene.  The filler or binder is suitably sodium sulphate, carbonate, phosphate, tripolyphosphate, or carboxymethylcellulose.  The blocks are formed by mixing the powdered constituents and then subjecting them to compression under a pressure of 1-10 tons per sq. in. The block obtained is conveniently used by placing it in a sieved container which is whisked or agitated in water until the required amount of detergent has been dissolved, whereafter the container with the block is hung up to dry.
Patent GB-171214-A (GB)
Title: A fault indicator for use in connection with electric ignition systems
IPC: F02P17/00
Filed: 1920-08-24
Abstract: 171,214. Ellmore, F. A. A. Aug. 24, 1920. Detecting faults. - In a device for testing sparking-plugs of the kind comprising two electric conductors A carrying adjustable spark-gap pins a in insulation B, the gap between the pins is formed within the insulation in a chamber b sufficiently deep to present a dark interior. The strips may be hinged or otherwise made adjustable and may have attached thereto extension pieces A'. A gauge may be supplied and may be attached to the insulation so as to span one side of the hole b. A gauge having a number of leaves after the manner of an engineer's feeler gauge may be employed.
Patent GB-245429-A (GB)
Abstract: 245,429. Soc. Generale des Compteurs de Voitures (Taximetres). Dec. 31, 1924, [Convention date]. Taximeter setting- spindle mechanism.- Relates to means for preventing the flag from passing from the " for hire " position to any tariff position before the fare drums have been zeroized. On the flag-shaft 10 is mounted a disc 11, a notch 14 in which is adapted to be engaged, in the " for hire " position, by a pawl 12 so as to lock the flag if the zeroizing of the fare drums has not been completed. The zeroizing is effected by a pivoted toothed sector 3 which is pulled over by a spring 5. A pin 15 engages a pin 16 on the pawl 12 to disengage it at the end of the zeroizing movement. The sector 3 rotates a pinion 2 on a slotted shaft 1 which co-operates with pawls 6 on the fare drums in order to reset them. A sliding stop-bar 8 having notches 8' is positioned by a cam 9 to co-operate with the pawls 6. A pawl 13 is arranged to engage notches in the disc 11 in order to prevent reverse movement of the flag when between the " for hire " and first tariff positions or between the third tariff and " for hire " positions.
Patent GB-1103270-A (GB)
Title: Improvements in and relating to optical interferometers
Inventor: MARTIN ALBERT EDWARD
IPC: G01J3/453
Filed: 1965-06-10
Abstract: 1,103,270. Photo-electric interferometers. SIR HOWARD GRUBB PARSONS & CO. Ltd. May 25, 1966 [June 10, 1965], No.24608/65. Heading G1A. [Also in Division G2] An interferometric spectrometer is used to produce concurrently three interferograms i.e. one for a sample substance, one for a comparison substance and a reference interferogram relating to the background energy in the interfering beam paths when neither a sample nor a comparison sample is present therein. From the interferograms, transmittance spectra may be obtained for the sample and comparison substances. A Michelson interferometer Fig. 1 (not shown) similar to one described in Patent Specification 1,056, 566 may be used. The sample and comparison substances are mounted in respective compartments of a holder (Fig. 3) with an empty compartment or open aperture providing the background reference and introduced in a predetermined sequence at regular increments or decrements of path difference of the two interfering beam paths of the interferometer, while this path difference is changed either continuously or in discrete steps. The absorption by the sample and comparison substances changes with the change in path length and is detected by a Golay cell, the output of which is recorded on a punched tape, representing the three concurrently recorded interferograms. The tape can be processed by a digital computer, and if the transmittance spectrum of the comparison substance obtained from this compares well with its spectrum obtained by known methods the transmittance (or absorption spectrum) of the sample is correct. Mathematical expressions used by the computer for obtaining this spectrum are given and their derivation obtained. Further comparison or sample substances may be arranged in the holder, to produce four or more concurrent interferograms.