baber/WOPTO huggingface dataset:
Patent GB-1415584-A (GB)
Title: Method and apparatus for coded binary data retrieval
IPC: H04L25/49
Filed: 1973-08-01
Abstract: 1415584 Digital storage systems BURROUGHS CORP 1 Aug 1973 [1 Nov 1972] 36580/73 Heading G4C Magnetically recorded data in modified frequency modulated code is decoded by a circuit receiving 'window' signals and pulses representing the flux transitions in the recording. The window signals consist of a series of pulses, there being one pulse for each bit cell of the recording. The position of the pulse within the cell, and its duration, are variable. Line a of Fig. 4 represents an example of the form of the coded data on the recording. The signal b in the read head is processed to provide a pulse c at each flux transition. The pulses may be displaced from the centre of the bit cells by amounts PS. The signal b passes to a circuit, comprising a voltage controlled oscillator in a phase lock loop, which generates clock signal d. The rising flank of each clock pulse triggers a first mono-stable to generate signal e. Signal e triggers a second monostable which provides the window signal f. By varying the astable period of the first and second monostables by a variable resistor the position of each window pulse within its bit cell, and its duration, can be chosen so that the error rate of the read out system is minimized, the majority of the pulses c pertaining to 1-bits then lying within a window pulse. This may be done by monitoring the error rate resulting from reading a test pattern from the record medium. The signals c set a bi-stable in the decoding circuit. The bi-stable is reset by the rising flanks of the window pulses f and consequently provides a signal g which is fed to a second bistable. This is also fed with window signal f, and it outputs a signal h to a third bi-stable. The third bi-stable is also fed with the clock signal d and outputs signal i representing the decoded data.
Patent GB-1073977-A (GB)
Title: Cobalt-base alloys
IPC: C22C19/07
Filed: 1964-09-07
Abstract: An alloy has the following percentage composition:- <TABS:1073977/C6-C7/1> the minimum ratio Zr/Ti being 1.  The alloy may also contain:-  .B.0-0.2 .Fe.0-5 .Mo.0-3 .Si.0-1 .Ni.0-10 .Mn.0-2
Patent GB-1309008-A (GB)
Title: Apparatus for controlling the contact pressure between a contact roller and material wound on a winding reel
IPC: B65H23/04
Filed: 1970-07-29
Abstract: 1309008 Winding webs NISHIMURA SEISAKUSHO CO Ltd 29 July 1970 [30 July 1969] 36788/70 Heading B8R The contact pressure between a web roll 22b and a contact roller 1 is sensed by a pneumatic detector 12 and the resulting signal is applied to a servo-valve 31 for comparison with an adjustable reference signal; the output signal from valve 31 is applied to a pneumatic cylinder 26 having a piston 27 which urges the roll 22b against the contact roller 1, whereby the contact pressure between the roller 1 and the roll 22b is automatically maintained at a desired value, thus ensuring a roll of the required density. The support for the roller 1 includes an arm 4 mounted for limited movement against a very stiff spring 8, and a fixed part 19 of the detector 12, co-operates with this arm to produce the signal representative of contact pressure (Fig. 2, not shown).
Patent GB-400027-A (GB)
Title: Improvements relating to the production of the metal elements of sliding clasp fastener strips
IPC: B21D53/50
Filed: 1933-01-24
Abstract: 400,027. Sliding-clasp fasteners. DIESELDORFF, E. P., Coban, Alta Verapaz, Guatemala. Jan. 24, 1933, No. 36944/32. Convention date, Feb. 22, 1932. Drawings to Specification. [Class 44.] The elements of sliding-clasp fasteners are cut from a strip coated with nickel, a precious metal, rubber, enamel, paint, lacquer, or other material. Specification 379,762 is referred to.
Patent GB-1178845-A (GB)
Title: Improvements in or relating to Spanners
Inventor: ROBOTHAM ALFRED
IPC: B25B13/08
Filed: 1966-08-18
Abstract: 1,178,845. Spanners. L. JOHNSON, and K. ROBOTHAM. 2 Aug., 1967 [18 Aug., 1966], No. 36965/66. Heading B3N. A spanner for screwing up a pipe coupling 10, comprises ends 28, 32 forming different diameter apertures 34, 36, and equally spaced recesses 38, 40 for engagement with projections 12 on the coupling. The pitch of the recesses is half that of the projections and the apertures extend  for more thana semi-circle. In a modification every other recess is elongated so as to accommodate imperfectly formed couplings. The spanneris bent at points 42, 44.
Patent GB-1091423-A (GB)
Title: Improvements in and relating to hydraulic jacks
Inventor: FANSHAWE HEW DALRYMPLE
IPC: F15B15/22
Filed: 1963-09-19
Abstract: 1,091,423. Jacks. F.N.R.D. Ltd. Sept. 18, 1964 [Sept. 19, 1963], No. 36987/63. Heading B8J. In an hydraulic jack comprising a cylinder 7 slidable on a piston 3, the jack is mounted on a hollow support 1 having a spherical surface 6 arranged to coact with a complementary surface on a tube 5 fitted to the piston 3, whereby misalignment of the jack is permitted. A tube 12 secured to the piston 3 passes through the support 1 and is tensioned to ensure a fluidtight joint at the spherical surface 6. Pressure fluid is supplied through a passage 2 in the support 1 to piston face 3a to extend the cylinder 7, and through the tube 12 to piston face 3b to retract the cylinder.
Patent GB-1166543-A (GB)
Title: Process for the Production of DL-Methionine Composition
IPC: C07C319/20
Filed: 1967-08-11
Abstract: 1,166,543. Feed supplement. SUMITOMO CHEMICAL CO. Ltd. 11 Aug., 1967 [11 Aug., 1966], No. 31173/67. Heading A2B. A composition, suitable for use as an animal feed supplement, consisting of DL-methionine and calcium salts of phosphoric acid is prepared by forming the calcium salt of DL-methionine during the production or refining of DL-methionine, and then reacting said salt with phosphoric acid. Thus, the calcium salt may be obtained by the hydrolysis of 5-#-methylmercaptoethyl hydantoin in the presence of calcium hydroxide in an aqueous medium, preferably at 130-250‹C. and 2.7-44 atm. Alternatively, crude DL-methionine may be dissolved with calcium hydroxide in an aqueous medium, which solution is then refined. The solution may be purified with active carbon or by filtration.
Patent GB-1129540-A (GB)
Title: High speed cigarette cutoff
IPC: B26D1/56
Filed: 1966-08-19
Abstract: 1,129,540. Cigarette making machines. AMERICAN MACHINE & FOUNDRY CO. 19 Aug., 1966 [24 Aug., 1965], No. 37281/66. Heading A2C. A cigarette cut-off mechanism comprises a support 38 and a carrier assembly 12 journalled in the support for rotation on a drive shaft 28, a rotatable knife 50 journalled in the carrier 12 on a shaft 46, and a belt and pulley arrangement for rotating the knife on the shaft 46 at speeds approximating the rotational speed of the carrier on the shaft 28. The shaft 46 lies in a plane parallel to a plane containing the shaft 28 and is slightly canted with respect to the shaft 28 to allow for the longitudinal speed of the cigarette rod R. The knife is driven by the pulley 58 from a belt 61 which also passes around a pulley 62 fixed to the support 38.
Patent GB-1197512-A (GB)
Title: Means for the Releasable Sealing of Pipes, particularly High Pressure with Each Other or with Connector Plugs
Inventor: HENNLICH GUNTHER
IPC: B07C5/12
Filed: 1967-08-15
Abstract: 1,197,512. Pipe couplings. G. HENNLICH, [trading as OTTO HENNLICH]. 15 Aug., 1967 [15 Oct., 1966; 28 Oct., 1966], No. 37366/67. Heading F2G. In a coupling comprising a connection piece 1, a counter connection piece 2, a collar 3, gasket means 1a, 2a and a U-shaped clamp strap 7 of which one arm 11a is longer than the other arm 11b, the strap engages in an annular groove 8 of the piece 2 and respective tangential bores 10 of the collar, and one or both of the bores are arranged in such a manner as to make the passage area of the semicircular or segmental section groove 8 into a cylindrical bore. The shorter arm of the strap traverses the bore extending tangentially to the inner surface of the collar and the groove in the counter connection piece, and the longer arm of the strap is located in the other tangential bore and has a safety catch 12 to prevent complete detachment of the strap As shown, the collar 3 is secured to the connection piece 1 by a wire 4. In a modification, the apertures in the collar and the groove 8 are initially displaced and insertion of the strap 7 draws together the pieces 1, 2 to axially compress between them a gasket. The legs of the strap may be cylindrical or conical in form and the distance between the legs may decrease towards the free ends thereof. The leg 11a may be formed with a recess so that the piece 2 can be withdrawn without complete removal of the strap.
Patent GB-1390974-A (GB)
Title: Production of film-forming pigmented resin powders
IPC: C09B63/00
Filed: 1972-08-11
Abstract: 1390974 Preparation of pigmented polymer powders BADISCHEANILIN- & SODAFABRIK AG 11 Aug 1972 [14 Aug 1971] 37533/72 Heading C3P Film forming pigmented resin powders are produced by a process which comprises dissolving one or more film forming polymeric substances in an organic solvent or mixture of solvents and dispersing a minor amount of one or more pigments throughout said solution, the thus prepared pigment dispersion then being finely dispersed with the aid of mixing energy in water containing at least one protective colloid, and then separating the resultant pigment powder from the solvent(s) and water, of from the water, having first removed the solvent(s). In a preferred embodiment, water containing a protective colloid is introduced at a rate of 5-100 m./sec. through one or a plurality of coaxial nozzles into an impulse exchange chamber immersed in water containing a protective colloid, which extends in the direction of entry of the nozzle(s), together with said dispersion issuing in the immediate vicinity of the nozzles, the mean hydraulic diameter of the impulse chamber being from 2-20 times the diameter of the nozzle orifice (the inner nozzle when a plurality are used), and its length being from 2-30 times its hydraulic diameter. The dispersion may also be introduced into water containing a protective colloid in the vicinity of a mechanical stirrer. In the example, a powder of a copolymer of styrene, methyl methacrylate, ethylhexyl acrylate, butoxymethyl methacrylamide and acrylic acid pigmented with TiO 2  is produced using ethyl acetate as the solvent and polyvinyl alcohol as the colloid. The figure shows an impulse exchange chamber having two concentric nozzles 1 and 2, an impulse exchange tube 3 and mixing tank 4. Solvent is distilled off at 6 and aqueous dispersion leaves via 5. The water/ colloid is introduced through nozzle 1 and pigment dispersion through nozzle 2. The powders may be used for electrostatic powder coating processes.
Patent GB-949974-A (GB)
Title: Dispensing type closure
Inventor: GALBIERZ JEROME J
IPC: B65D47/26
Filed: 1960-11-01
Abstract: 949,974. Container closures. R. C. CAN CO. Nov. 1, 1960, No. 37576/60. Heading B8T. A dispensing closure for assembly in an opening in a container top, comprises a pliable under-closure 15 in which an upper closure member 16 is rotatable by means of a finger grip 31 to bring apertures 34 or 36 in member 16 into alignment with an aperture 21 in the closure member 15. The closure is secured to the container by the engagement of the edge of the container opening in a groove 24 defined by a flange 19 and shoulder 23 provided on the under closure, a projection formed in the groove fitting into a notch in the container top to index the closure in position. Ribs 32, 33 on member 16 provide a pouring spout.
Patent GB-972095-A (GB)
Title: Cylinders and cylinder liners
Inventor: MURCOTT JOSEPH VERNON
IPC: F16J10/04
Filed: 1959-11-06
Abstract: A cylinder liner of a hyper-eutectic aluminium-silicon alloy is formed by a pressure die casting process.  The liner may be cast from an alloy containing 18-26% silicon and Cu, Ni, Mg, Cr, Fe, Ti, Mn, Zn, Co, Sn and Pb.
Patent GB-1368663-A (GB)
Title: Method for improving soil
IPC: C05G3/90
Filed: 1972-08-14
Abstract: 1368663 Fixing harmful metal ions in soil SANKYO KASEI CO Ltd 14 Aug 1972 [20 Aug 1971] 37757/72 Heading C1B A method for treating acidic or neutral soil to fix a metal ion harmful to plant or animal life, comprises adding to the soil a mercapto-striazine or water-soluble salt thereof, said triazine having the formula wherein R is hydrogen, -NH4, -OH, alkyl having 1 to 8 carbon atoms, alkoxy having 1 to 8 carbon atoms, phenyl, cyclohexyl, oxazinyl, phenoxy, morpholino, -NR<1>2 or SR<11>, R<1> being hydrogen, alkyl having 1 to 8 carbon atoms, phenyl, cyclohexyl, naphthyl or benzyl, R<11> being alkyl having 1 to 8 carbon atoms, phenyl, cyclohexyl, naphthyl or benzyl; m is an integer of 1 to 3 and n is 0 or an integer of 1 to 2. The triazines also prevent nitrification.
Patent GB-847761-A (GB)
Title: Resolution of racemic threo-ª-(p-nitrophenyl)-serine-n-butyl ester
Filed: 1958-11-24
Abstract: The invention comprises optically active isomers of threo-b -(p-nitrophenyl)-serine-n-butyl ester and a process for the separation of optically active isomers of racemic threo-b -(p-nitrophenyl) serine-n-butyl ester which comprises reacting racemic threo-b -(p-nitrophenyl) serine-n-butyl ester with d-camphor-sulphonic acid in the presence of a solvent and separating the resulting diastereoisomeric d-camphorsulphonates from one another by means of their different solubilities in the solvent.  The salt formation preferably takes place in water or n-butanol although mixed solvents, e.g. aqueous alcohol, acetone or dioxan or alcoholic esters, chloroform or dioxan may be used. The Ls(+) salt precipitates in an optically pure state and the Ds(-) salt is recovered from the mother liquor.  The optically active ester may be recovered from the salt by treatment with a base, e.g. alkali metal hydroxides, carbonates or bicarbonates or with a mineral acid to give a mineral acid salt.  Examples are given.  Racemic threo-b -(p-nitrophenyl)-serine n-butyl ester may be prepared by esterifying threo-b (p-nitrophenyl)-serine with n-butanol saturated with hydrochloric acid and liberating the free base from the hydrochloride.  Specifications 715,876 and 727,995 are referred to.
Patent GB-1436596-A (GB)
Title: Assembly for applying thin damping layers to a building structure
IPC: E04B1/84
Filed: 1973-08-10
Abstract: 1436596 Insulating blocks AKUSTIKBYRAN AB 10 Aug 1973 [10 Aug 1972] 38017/73 Heading E1B [Also in Division B2] An assembly for applying -thin damping layers to a building structure to impart noise and vibration-damping properties (hereto, comprises a backing strip having on both sides a layer of a visco-elastic material, at least one of the layers having at the surface thereof a bonding layer of a granular material, the products of which are partly embedded in the damping layer and the remaining part being intended to be embedded in the building structure during the casting thereof thereby to secure the assembly to the structure. The backing may be a foil, fabric or cardboard, particle board, concrete slab or rigid plate, or a metal sheet, and may be in the form of a roll or plate. A layer of viscoelastic damping material is applied to both sides of the backing and prior to hardening sand or gravel, for example, are spread on to the layer and adhered thereto.
Patent GB-852798-A (GB)
Title: Device with a semiconductor rectifier
IPC: H01L23/58
Filed: 1958-11-26
Abstract: 852,798. Semi-conductor rectifiers. BROWN, BOVERI & CIE A.G. Nov. 26, 1958 [Nov. 29, 1957], No. 38075/58. Class 37 A ring 5 of high permeability magnetic material surrounds at least one of the leads to a semi-conductor rectifier to reduce high voltage peaks which develop during the reverse cycle of rectification due to sudden cessation of hole storage current. The rectifier, which may consist of germanium is in a container 1 closed by metal end portions 2 and 3 which holds supply cable 4. Two additional magnetic rings 6, 7 may be added. The magnetic material may consist of 75 % nickel and 25 % iron. Current windings may be associated with the ring to form a current transformer for control of the rectifier or for fault or overload switching operations.
Patent GB-1534717-A (GB)
Title: Autographic register systems
IPC: B41L5/14
Filed: 1976-08-17
Abstract: 1534717 Autographic registers; carbon gloves MOORE BUSINESS FORMS Ltd 17 Aug 1976 [17 Sept 1975] 38241/75 Heading B6A An autographic register is provided with a printing mechanism whereby embossed data on credit cards can be printed on to record webs held in the register. Superposed record webs 2 are fed by rollers 32 over a writing plate 4 where transversely fed transfer webs 6 are interleaved to copy written information to the underlying webs. The printing mechanism 7 is shown in raised position but is normally lowered and locked by a screw 23. It comprises a roller 19 which can be reciprocated along a cam slot 17 by a handle 21. The roller is either inked or associated with a carbon glove held between dyes 24, 25. Thus when an embossed credit card is located on a slide 10 and pushed into the register beneath the record webs, the embossed data is printed on to the top web as the roller A is reciprocated. At the same time the data is printed on to the underlying webs by virtue of carbon patches provided on each overlying web. The carbon glove is in the form of a strip of carbon having cardboard end tabs, or windowed envelopes of mica or plastics material for accommodating a carbon insert.
Patent GB-868747-A (GB)
Title: Improvements in the production of water-soluble dyestuffs of the azaporphin series
IPC: C09B47/26
Filed: 1957-12-19
Abstract: Water-soluble azaporphin dyestuffs are made by reacting an azaporphin polysulphonic acid chloride containing two or more sulphonic acid chloride groups per molecule with a primary or secondary hydroxyalkylamine having up to 4 carbon atoms in the presence of acid-binding agents, so that at least one sulphonic acid chloride group is amidized and at least one sulphonic acid chloride group is unamidized, saponifying the unamidized groups to obtain sulphonic acid groups and substituting the hydroxyl groups of the sulphonic acid-hydroxyalkylamide radicals with chlorine or bromine atoms by treatment with an inorganic acid halide.  The dyestuffs dye and print textile goods of natural and/or regenerated cellulose in conjunction with an alkali and heat treatment to give blue shades. Specifications 823,098 and 826,689 also are referred to.
Patent GB-1085788-A (GB)
Title: Alternating current supply systems
IPC: B63J3/04
Filed: 1964-09-18
Abstract: 1,085,788. Parallel operation of alternators. SIEMENS-SCHUCKETWERKE A.G. Sept. 18, 1964 [Sept. 18, 1963], No. 38312/64. Heading H2H. An alternating current supply system comprises a plurality of diesel driven alternators 1 connectible to bus bars 4 with means to control the output frequencies of the alternators together with means for controlling the division of load between the alternators, the alternators each having their own individual control means or alternatively one alternator with its control means may be used as a master unit and all the other alternators controlled in accordance therewith. A device 8 is fed with a D.C. supply, e.g. from a transformer-rectifier assembly 10, and a signal representative of the load on the alternator 1 from a current transformer 11. By means of controls 13, 14 an output signal is generated in the device 8 having a predetermined frequency/current relationship and this signal is fed into a comparator 6. Also fed into the comparator are a signal 12 representing the frequency of the bus-bars 4 and a signal representing the output of the alternator 1, an error signal being developed in the comparator 6 which is used to control a motor 9 and thence to control the governor of the diesel driving the alternator 1. When it is desired to run up the alternator 1 and place it on the bus-bars 4 to relieve the load on the existing alternators thereon switches 3, 7 are open and the frequency of the alternator 1 is compared in the unit 6 with the bus-bar frequency signal 12, the motor 9 and the governor of the diesel thus being controlled to increase the output frequency of the alternator 1 until it is running synchronously with the bus-bars 4. Switch 3 then closes putting the alternator on the bars 4 and switch 7 closes therewith whereupon, in the unit 6, the alternator frequency signal is now compared with the signal received in the unit 6 from the device 8. The error signal now controls the motor 9 and thereby the governor of the diesel so that the output frequency and the load taken by the alternator 1 are controlled according to the settings 13, 14. If each generating set is controlled individually a device 8 and a comparison unit 6 will be associated with each set whereas if one set is used as a master, it only will be provided with a device 8 and unit 6 and the other sets controlled therefrom so as to maintain the correct load distribution. Should one set only be used the signal from the current transformer 11 may be disconnected and the device 8 will then control the alternator to a constant output frequency.
Patent GB-1273349-A (GB)
Title: Improved glazing
Inventor: CHRISTIE THOMAS
IPC: E06B3/68
Filed: 1968-08-10
Abstract: 1,273,349. Glazing. T. CHRISTIE. 4 Aug., 1969 [10 Aug., 1968], No. 38327/68. Heading E1R. A glazing mounting comprises a bar 22 separating two panes 23 and having its longitudinal free edges secured in grooves in glazing bars 25 by separate fastening members. Preferably the outside glazing bars are secured by glue and the inside ones by screws or pins. A lattice of bars in a frame 14, 15 supports a plurality of glass panes 23. Beads 26 secure the edges of the panes adjacent frame 14, 15.
Patent GB-1364866-A (GB)
Title: Polyurethane type polymers and adhesive systems therefrom
IPC: C08G18/08
Filed: 1971-08-16
Abstract: 1364866 Polyurethanes MINNESOTA MINING & MFG CO 16 Aug 1971 [17 Aug 1970] 38390/71 Heading C3R Solid polyurethanes, polyurethane-ureas or polyureas containing at least 20% by weight pendant chains connected to branching sites in the backbone of the polymer, the backbone containing between 5 and 15% by weight of aromatic nuclei based on the total weight of the polymer may be prepared by capping a polyurethane, polyurea or polyurethane-urea prepolymer having a functionality of at least 2À5 with at least 0À5 equivalent of a monofunctional capping agent, the prepolymer having at least 20% by weight of pendant chains, each of the pendant chains having a weight of 600 to 4000 atomic mass units, and f-m (f-2) free NCO groups wherein m is 0À5 to 1-35 and f is the functionality of the prepolymer prior to capping and reacting the capped prepolymer with a chain extender. The capped prepolymer may be obtained (1) by partially capping an isocyanate-terminated prepolymer with a monofunctional active hydrogen reactant, e.g. a monool or a N,N-dialkyl alkanolamine or with epsilon caprolactam, (2) by adding a monoisocyanate to a prepolymer-forming reaction mixture in which the polyol used is at least trifunctional or (3) by modifying one or more OH groups of an at least trifunctional polyol, e.g. by esterification or etherification before reacting the polyol with a polyisocyanate to form the prepolymer. The capped prepolymer may contain hydrophilic groups in the backbone, e.g. protonatable tertiary nitrogens by chain extension with an alkyldiethanolamine. Extremely stable latices may be provided by chain extension of the capped prepolymer in water or an aqueous solution containing a diamine chain extender. Films produced from solutions of the polymers, preferably aqueous solutions, are pressure-sensitive without the use of external tackifiers. In a typical example a mixture of poly(oxypropylene)triol and poly(oxypropylene/ oxyethylene)tetrol is reacted with toluene diisocyanate to form a prepolymer which is partially end-capped with diethylethanolamine and then formed into a latex by chain extension in water containing acetic acid. Other end capping agents are butanol and poly(oxyethylene)- glycol mono-oleate. The latex is cast into a film which is tacky to the touch.