baber/WOPTO huggingface dataset:
Patent GB-951004-A (GB)
Title: Improvements in drive and feed device for a string of rotary drill string elements
IPC: E21B21/00
Filed: 1962-04-17
Abstract: 951,004. Boring earth &c. ATLAS COPCO A.B. April 17, 1962 [April 17, 1961], No. 14723/62. Heading E1F. A feed mechanism for a rotary drill string 68 comprises a frame 2, chucks 30, 32 mounted on the frame and operable to engage and disengage the drill string whilst rotating, means 22, . . ., 24 for raising and lowering each chuck independently of the other, and motors 60, 62 for independently rotating the chucks at the same or different speeds. The frame is mounted on a shaft 3 adjustable on a trolley 5 housing a motor E, a pump F and manually or automatically operable valves K, L, . . . W for controlling the flow of pneumatic or hydraulic fluid to the components of the mechanism. During drilling the chuck 30 engages the string, rotates and moves downwardly whilst the chuck 32 is disengaged from the string, and moves upwardly without rotating. Just before the chuck 30 reaches its lowermost position the chuck 32 engages the string, is rotated and fed downwardly with the chuck 30. At the bottom of its stroke the chuck 30 is stopped rotating and disengaged after which it commences to rise whilst the feed is taken over by the chuck 32. During the rest of the drilling the chucks alternate in feeding the string. The first drill rod is inserted into the open chucks which engage, rotate and feed the rod for a small distance before the feed is taken over by the upper chuck. When only the chuck 32 can engage the string a new rod is inserted in the chuck 30 as the chuck 32 nears the bottom of its stroke, both chucks travelling downwards and rotating but the speed of the chuck 30 being greater than that of the chuck 32 to screw the rod on to the string. To pull the string the chuck 32 is disengaged and the chuck 30 is engaged and moved upwardly. When a joint between rods arrives at a position between the chucks and nearer to the chuck 30, the chuck 30 is rotated in a reverse direction and has its upward speed increased to break the joint so that the upper rod may be removed. Drilling fluid which may be liquid, gas or a liquid-gas mixture is supplied to the string by means of pipes 312, 314 connected to tongs 316, 318 at connector 298. Sleeves 254 rotatable relative to the string on housings 252 located at intervals along the string are engaged, when suitably positioned, by one or other of the tongs, fluid from the respective connector 298 entering the sleeve aperture 255 and annulus 266 to pass to the bore 268 of the string. A ball 271 in the housing at the upper end of the string prevents leakage of fluid from the upper end of the string, and leakage from the apertures 255 when not engaged by a tong is prevented by a ball 261. Specifications 865,879 and 938,278 are referred to.
Patent GB-1601437-A (GB)
Title: Preparing 1,2,4-triazolyl-3-azo dye
IPC: C09B41/00
Filed: 1978-04-14
Abstract: The process for the preparation of novel basic red dyes of the group of the 1,2,4-triazolyl-3-azo dyes, of formula <IMAGE> in which B denotes a group of a suitable coupling component B-H, preferably a coupling component containing aromatic amino, aromatic hydroxyl or active methylene, is simple since it does not require any separate steps for isolating any intermediates. The desired dyes are obtained in high yield and purity and isolation of the hazardous 3-amino-1,2,4-triazolyl intermediate is avoided. The process comprises converting an aminoguanidine salt, namely aminoguanidine formate, into 3-amino-1,2,4-triazole, diazotising 3-amino-1,2,4-azole and coupling with the coupling component B-H to form the azo dye, and is characterised in that the aminoguanidine formate or aminoguanidine bicarbonate is heated, at 100 to 120 DEG C, with at least a molar amount of formic acid (in the case where the formate is used) or with at least a 2-molar amount (in the case of a bicarbonate), to form 3-formamido-1,2,4-triazole, the 3-formamido-1,2,4-triazole is hydrolysed in acid to give 3-amino-1,2,4-triazole and an azo dye is formed without intermediate isolation of 3-amino-1,2,4-triazole from the reaction mixture when it is prepared.
Patent GB-947864-A (GB)
Title: Improvements in or relating to nuclear-chlorinated aromatic compounds
IPC: C07C/
Filed: 1960-04-27
Abstract: 947,864. Herbicidal compositions. PHILIPS GLOEILAMPENFABRIEKEN N.V. April 27, 1960 [April 28, 1959], No. 14773/60. Heading A5E. [Also in Divisions A2 and C2] A composition for combating undesirable plant-growth consists of 2,3-dichlorobenzonitrile, or a mixture thereof with 2,6-dichlorobenzonitrile, and an inert solid or liquid carrier. A dust preparation, for controlling premature sprouting of potatoes, consists of 4% of the active substance mixed with 16% of kieselguhr and 80% of magnesium marlstone. A specific example of a liquid preparation comprises 25% of the active substance dissolved in 61% of xylene and 6% of methyl ethyl ketone with the addition of 8% of an emulsifying agent. Wettable powders may be made up using wetting agents, such as fatty acid sulphates or alkylaryl sulphonates, and dispersion agents such as lignin sulphonate. Specification 862,863 is referred to.
Patent GB-949829-A (GB)
Title: Improvements in or relating to electric supply arrangements for gas discharge tubes
IPC: H02M7/53862
Filed: 1960-04-27
Abstract: 949,829. Supply systems for discharge lamps. PHILIPS ELECTRICAL INDUSTRIES Ltd. April 27, 1960 [April 30, 1959], No. 14778/60. Heading H2H. [Also in Division H3] A transistor oscillator supplying a gas discharge tube 8, e.g. a fluorescent lamp, and fed from a battery 3, has positive feedback provided through an LC series circuit 6, 7 across a part of which the tube is connected. As shown, the oscillator supplies a square wave voltage from a transformer 4 to the LC circuit which, due to resonance, provided a higher voltage to the lamp 8. Feedback is via a second transformer 5, and an RC circuit 9, 10, 11 ensures a starting pulse for the oscillator; the lamp ignites immediately. The lamp may alternatively be connected across part or all of the choke and in an alternative oscillator the transistors are in series across the supply 3 and are controlled in phase opposition by separate windings on transformer 5; transformer 4 is dispensed with. The output is then derived via a capacitor, between the common point of the transistors and a battery terminal. A further alternative, comprising one transistor, a transformer and a limiter diode, is mentioned.
Patent GB-514900-A (GB)
Title: Improvements relating to the fastening means of stanchions and the like
IPC: B62D47/02
Filed: 1938-05-18
Abstract: 514,900. Pillars. GABRIEL & CO., Ltd., and GABRIEL, E. P. May 18, 1938, No. 14794. [Class 20 (i)] [Also in Group XXXIII] The effective length of a stanchion is adjusted by screwed end fittings. The stanchion has a screwed spigot b which works in the screwed bore of the heel fitting a. The adjusted length of the stanchion is locked by the screw c.
Patent GB-1299984-A (GB)
Title: Adaptively coded data communications system
Inventor: ABRAHAMSON NORMAN
IPC: H04L1/00
Filed: 1970-03-26
Abstract: 1299984 Error-correcting transmission systems AMERICAN COMPUTER COMMUNICATIONS CO Inc 26 March 1970 14795/70 Heading G4A In an error-correcting transmission system in which check signal bits are appended to a transmitted block of data the receiver includes circuitry which corrects burst errors, where possible, and calls for retransmission of any block found to be uncorrectable. Dependent upon the noise characteristics of the transmission channel and upon the proportion of errors a further circuit determines when burst errors which can not be corrected by the check bits are likely to occur, and in such a case the length of the data and of the check signal is increased by a factor a. This has the effect of distributing the check bits over a longer block of data, permitting correction of longer error bursts without recourse to a more redundant coding. At the transmitter a 15-bit data word is passed to buffer 30 and also to register 28. Register 28 has various feed-back connections (some shown) and modulo-2 adders so that a 6-bit check word is generated. Subsequently the data and check words are transmitted as a 21-bit block. At the receiver the block is fed to a buffer and to a feed-back register similar to that at the transmitter. Dependent upon the varying content of the register as the block is read from the buffer to a store the block is shown to be either correct or uncorrectable or is corrected. If the block is uncorrectable repetition is called for, and if an excessive proportion of errors is detected the receiver commands the transmitter to increase the block length. This is done by tripling the capacity of buffer 30 to 45 bits (i.e. a=3). The capacity of register 28 is increased to 18 bits by replacing each stage 1-6 by three stages, Fig. 13 (not shown). Similar increases in capacity take place at the receiver. When operating in long block mode, even if the block as a whole is found to contain an uncorrectable error it is possible to determine whether any of the three 21-bit sub-blocks is error free or contains a correctable error.
Patent GB-1116043-A (GB)
Title: Electro-magnetic force motor
Inventor: FITZPATRICK RONALD
IPC: H01F7/16
Filed: 1964-04-09
Abstract: 1,116,043. Electromagnets. DOWTY ELECTRICS Ltd. 7 July, 1965 [9 April, 1964], No. 14797/64. Heading H1P. An electromagnetic force motor comprises a solenoid 1 and an annular body 5 of resin mounted side-by-side on a non-magnetic, metallic guide tube 2, one or more electrical components (such as surge-damping rectifiers) being embedded in the resin body 5. As described, a magnetic circuit 8, 9, 11, 12 and plunger 14 are included, the plunger 14 being spring-coupled to a rod 15, actuating anhydraulic valve. The plunger 14 may be manually operated by a push-button 23 contained in a rubber boot 24.
Patent GB-712794-A (GB)
Title: Sorting machines
Inventor: TEARNE WILLIAM
IPC: B07C5/26
Filed: 1952-06-12
Abstract: 712,794. Weighing apparatus. SOUTHALL & SMITH, Ltd. June 10. 1953 [June 12, 1952], No. 14816/52. Class 143 A machine for sorting articles by weight comprises at least one weigh-beam which is intermittently rotated in a circular horizontal path, past a series of fixed switches, the beam actuating one of the switches in accordance with the weight of the article to release the article or stamp it with the weight value. Sorting by weighing. Pieces o, Fig. 1, to be sorted in accordance with their weight, e.g. turbine blades, are individually held by a magnetic clutch p at one end of a beam k having a pre-set counter poise n. The beam is pivoted at m and rotates with a turntable d which is intermittently stepped on by a Geneva stop mechanism c, f, Fig. 2, rotated by a spindle n driven through gearing i by shaft j. At each stopping place of the turntable, the arm u depending from beam k is directly over one, v, of a plurality of beams each of which is set by its counterpoise x to overbalance at a different value of the force applied by u. Thus the beam k eventually reaches a position where it causes one of the beams v to overbalance to close contacts b to actuate solenoid r releasing clutch p and allowing the piece o to fall into the appropriate bin. During movement of the turntable d, the beams k, v, are locked in their upper positions by plungers 10, 15 actuated by levers 8, 13 which are moved by discs 5. 3 raised and lowered by plunger 6 actuated by cam '7 on shaft j. At the loading position, a ramp 18 locks the beam k in its uppermost position. A plurality of beams k may be provided. Recording weight on each piece. In Fig. 3 the pieces o are all discharged at a common point, and as the beam k is rotated, each piece is stamped with its weight. When the beam k reaches a position where its extension u tips one of the beams v, the contacts b (not shown) close to actuate solenoid 30 to release catch 28 and allow member 27 and shaft 24 to be pulled down by spring 25 thus actuating fingers 32 (only one of which is shown) to embrace the piece o and stamp thereon the weight. Subsequently, a valve (not shown) opens to admit air to a cylinder 20 to move lever 22 and thus withdraw shaft 24 to its original (dotted line) position. Solenoid 40 is also energized to withdraw catch 39 and thus allow spring 36 to move yoke 34 to lock the beam k in its uppermost position. When the beam reaches the discharge point, solenoid r is energized to release clutch p and allow the piece o to fall away into a bin.
Patent GB-216697-A (GB)
Title: Improvements in folding mechanism for printing machines
IPC: B65H45/16
Filed: 1923-06-06
Abstract: 216,697. Rogers, H. G. June 6, 1923. No Pa,tent granted (Sealing fee not paid). Folding paper.-In folding mechanism for printing machines of the kind comprising a folding blade rotatably mounted and adjustable circumferentially on a rotary cylinder, the folding blade being rotated by a pinion on its shaft engaging a curved rack on the adjacent machine framing to cause the edge of the blade to project periodically beyond the periphery of the cylinder and push the middle of the sheet between a pair of folding rollers, the folding blade bearings are received in grooved flanges which are external to the ends of the cylinder and which are provided with spaced holes in the grooves to permit circumferential adjustment of the bearing bolts. The sheets are passed from the impression cylinder 1 to a rotary cylinder 4 wholly or partly of skeleton formation and carrying the rotary folding blade 6 mounted in end bearings 7, 8. The latter are secured by means of bolts and spaced holes 9<a> in grooved flanges 9 disposed on the outer ends of the cylinder 4. Another bearing 19 supports the blade intermediately. Pinions 10 on the folding blade shaft engaging racks 11 on the framing cause the blade to rotate and project beyond the cylinder when opposite the folding rollers 12. Subsequent folds mav be imnarted to the paper by mechanism of ordinary construction comprising oppositely travelling sets of tapes and chopper blades.
Patent GB-901822-A (GB)
Title: Improvements in systems for high voltage measurement
IPC: G01R15/14
Filed: 1960-04-28
Abstract: 901,822. Voltage measurements. FOSTER TRANSFORMERS Ltd., and JENNINGS, R. E. April 27, 1961 [April 28, 1960], No. 14899/60. Class 37. Apparatus for measuring the alternating voltage output of a step-up transformer comprises an impedance Z in series with the secondary S developing a voltage drop which is vectorially combined with a voltage produced across an auxiliary winding T representing the open circuit secondary voltage, the combined voltage being measured by an instrument V m  connected in circuit with the impedance and the auxiliary winding to represent the output voltage compensated for on-load voltage drop (Fig.1). In a modification (Fig. 2), correcting for instrument load the impedance is an air-gapped iron cored reactor X shunted by resistance r and tapped to develop across part b a voltage equal to that across Z (Fig. 1), which is combined in instrument V m  with that across T, the part a of the reactor being earthed, while the effect of secondary self capacitance C is compensated by capacitance c across the instrument. In a further modification (Fig. 3), correcting for instrument load, an extension auto transformer connected winding b of reactor X is coupled through resistance R to winding T, and carries a current equal and opposite to that in b to cancel the effect of the ampereturns therein on the voltage drop across the impedance. Design formulµ are given, and by the use of moving iron, rectifier moving coil or peak reading instruments the mean, RMS, or peak values of voltage output are measurable.
Patent GB-664705-A (GB)
Title: Improvements in or relating to the separation of gas mixtures
IPC: F25J3/04
Filed: 1949-06-03
Abstract: 664,705. Separation of gases. BRITISH OXYGEN CO., Ltd., and SCHUFTAN, P. M. May 30, 1950 [June 3, 1949], No. 14941/49. Class 8 (ii) In a process for separating a gas mixture, e.g., air into its constituents product oxygen and waste nitrogen by liquefaction and rectification wherein at least part of the cold required is obtained from isentropic expansion of at least part of the initial mixture or of at least one of its separated constituents e.g., waste nitrogen the liberated energy is utilized to reduce below atmospheric the pressure of one of the separated constituents, e.g., waste nitrogen The expansion may be effected by a turbine and the energy used to drive a directly coupled axial flow blower drawing waste nitrogen which supplies a vacuum brake for the turbine rotor. In a modification the expansion occurs in a reciprocating engine having an extra cylinder acting as a vacuum brake and serving to bring about the desired pressure reduction of the waste nitrogen.
Patent GB-860917-A (GB)
Title: Improvements in and relating to electrical measuring instruments
Inventor: SANDELS ERNEST GEORGE
IPC: G01N27/07
Filed: 1956-05-14
Abstract: 860,917. Electrical measuring systems. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 9, 1957 [May 14, 1956], No. 14954/56. Class 40 (1). [Also in Group XXXVI] The temperature of a liquid in a conductivity cell Cc is measured by connecting electrodes provided in the form of conductive lands round a thermometer immersed in the liquid, in an arm of the bridge shown, the thermometer and electrodes forming a capacitance, the value of which depends on the length of the mercury when under the electrode on the tube. The thermometer is connected in one arm at Cc, the other arms of the bridge consisting of a fixed resistance Rs, a fixed capacitor Cs and a variable capacitor Cv, the voltages across Cc and Cv being rectified and connected in opposition, their difference being reduced to zero by adjustment of Cv, the value of Cv for the null condition then corresponding to the temperature. The liquid is supplied from an R.F. oscillator.
Patent GB-451334-A (GB)
Title: Piston-rings
IPC: F16J9/20
Filed: 1936-02-07
Abstract: 451,334. Piston-rings. W.P. (LYMING- TON), Ltd., and HOWLETT, J. W., Radial Works, Stanford Road, Lymington, Hampshire. Feb. 7, 1936, No. 14966. Divided out of 452,041. [Class 122 (i)] A piston-ring comprises a number of laminations 12 of bronze or bronze alloy expanded by a spring 14 which may be a plain or wavy ring or of the form described in Specification 451,045 which is referred to.
Patent GB-1469453-A (GB)
Title: Monoazo dyes containing a sulphato-ethyl group
IPC: C09B62/51
Filed: 1974-04-04
Abstract: 1469453 Monoazo dyes containing a sulphatoethyl group CIBA-GEIGY AG 4 April 1974 [4 April 1973 8 March 1974] 15037/74 Heading C4P Novel dyestuffs of the formula (wherein n is zero or 1; R is H, optionally substituted alkyl, or cycloalkyl; the A ring may be substituted; and B is a heterocyclic coupling component radical free from water-solubilizing groups and substituted in a position ortho to the azo bridge by an optionally substituted amino group) are prepared by diazotizing an appropriately substituted aniline and coupling with BH. Coupling components of the aminopyrazole, amino-pyridine and amino-pyrimidine series are specified. The dyestuffs are used for printing and, particularly, dyeing of semi-synthetic or, particularly, fully synthetic materials, especially textile fibres. Examples of substrates are polyacrylonitrile and polymers made from acrylontrile and other vinyl compounds, mixed polymers from dicyanoethylene and vinyl acetate, polyurethanes, polyamides, cellulose acetates and, particularly, aromatic polyesters.
Patent GB-1348540-A (GB)
Title: Method and apparatus for forming a layer of catalyst powder upon a substrate
IPC: B22F3/11
Filed: 1971-05-14
Abstract: 1348540 Spray nozzle; coated electrodes SIEMENS AG 14 May 1971 [15 May 1970] 15101/71 Headings B2E and B2F [Also in Divisions Dl and H1] In the spraying of powder for coating a substrate the powder is, in the embodiment shown in Fig. 6 agitated in a hopper by means of a cam device acting against a movable member 56, falls onto a moving conveyor 66 and is impelled out of an orifice 64 by means of a brush 67, along with air from the interior of the chamber 61 which is kept at above atmospheric pressure. Another embodiment (Fig. 5, not shown) has no chamber 61 and the powder is sprayed by the brush alone, and yet another has the powder fed onto a roller in place of the conveyor 66. The device shown in Fig. 3g is a nozzle consisting of a slit 38 in one cylinder and a helical slit 39 in a cylinder within this, relative rotation of these causing the orifice 33 to move, powder fed to the inside being sprayed from the orifice. The powder sprayed is a catalytic powder of "Raxey" silver or "Raney" nickel optionally mixed with binding agents (or impregnated with them) such as PTFE, polyethylene, or polyglycol, the substrate to be coated either moving in the direction of the spray or against this direction and so a gradation of particles from large to small or vice versa is obtained (see coatings 75 and 76, Fig. 7). Shown are two coatings, 74 and 75 with gauze 77 between them. The coating may be dried and then passed between calendar rolls to consolidate it, and the substrate may be in the form of the individual plates of an electrochemical cell (particularly a fuel cell). Fillers, such as soluble salts (e.g. potassium carbonate or potassium oxalate) may also be added to the powder.
Patent GB-1159623-A (GB)
Title: Low Elongation Set Spandex Filaments and process for the preparation thereof
IPC: D01F6/72
Filed: 1967-04-03
Abstract: 1,159,623. Producing spandex filaments. KURASHIKI RAYON K.K. 3 April, 1967 [5 April, 1966], No. 15197/67. Heading B5B. Spandex filaments of temporarily lowered elongation are produced by dry-spinning a solution in an organic solvent having a boiling point not exceeding 200‹ C. of an elastic polyurethane prepared from a polymeric diol having a molecular weight of 500 to 5000, an aromatic diisocyanate and a diol having a molecular weight of 50 to 200, drying the spun filaments at a temperature above the boiling point of the solvent but not exceeding 200‹ C. to reduce the solvent content of the filament to not more than 0À5% by weight, drawing the filaments at a draw ratio of 2 : 1 to 6 : 1 at a temperature of 80‹ to 150‹ C., preferably 120‹ to 150‹ C., heat setting the drawn filaments at a temperature of 150‹ to 200‹ C., preferably 160‹ to 180‹ C., cooling the filaments to a temperature below 50‹ C. and thereafter shrinking them by 5 to 15% of their length before the shrinking step. The low molecular weight diol may be ethylene glycol. The polyurethane may be obtained by reacting a polyethylene propylene adipate having a molecular weight of 500-5000, 4,4<SP>1</SP>-diphenyl methane diisocyanate and ethylene glycol. The solvent may be dimethyl formamide, dimethyl-acetamide, tetrahydrofurane or dimethyl-sulphoxide. The object of producing spandex filaments of temporary relatively low elongation is to facilitate subsequent processing of the filaments such as knitting and weaving. After the filaments have been used in the making of knitted or woven fabrics their elongation and elasticity may be restored by heating the fabrics to above 90‹ C., preferably 100‹ to 150‹ C. The spandex filaments of the invention have an elongation of about 100 to 120% and a tenacity of about 2À0 to 4À0 g/d. When shrunk in water at 15‹ C. for 15 minutes free of tension their elongation rises to, for example, 377%.
Patent GB-238500-A (GB)
Title: Display rack for coats, costumes and the like
IPC: A47F7/24
Filed: 1925-06-12
Abstract: 238,500. Whitbys, Ltd., and Shipway, S. P. June 12, 1925. Garment racks.-A display rack for garments comprises a U-shaped portion a formed of solid drawn steel tubing between the ends of which is welded a straight hanging bar b of similar material, the frame being supported on castors e carried by tubular members d welded to the upright parts of the portion a.