baber/WOPTO huggingface dataset:
Patent GB-867072-A (GB)
Title: Drill bits
IPC: E21B10/60
Filed: 1960-02-19
Abstract: 867,072. Boring earth. JERSEY PRODUCTION RESEARCH CO. Feb. 19, 1960 [March 2, 1959], No. 5938/60. Class 85. A rotary bit for drilling boreholes comprises a bladelike cutter having a cutting edge extending radially from the axis of the bit, and a body member which supports the cutter adjacent to the cutting edge and is slidable automatically relatively to the cutter so as to expose for feed action, a desired amount of the cutter irrespective of the wear on the cutting edge, a passage through the body discharging cutting fluid adjacent to the cutting edge. Fig. 6 is a section on the line 6 - 6 of Fig. 4. The drill string is coupled to a mandrel 35 which slides in a bore 41 in the body member 31, keys 42, 52 sliding in key ways 53 to transmit the rotary motion to the body 31 and an extension sleeve 33 screwed thereto. The member 31 is formed in two halves held together by bolts, the lower shoe parts 32 being spaced to receive the cutter blade 37 which is guided for vertical movement by grooves 50 and is supported near vertical reaming edges by vertical beads 45 which, with other beads 46, act as centralizers. The bottom of the shoe is preferably rounded, surfaced with abrasive particles and the entire bottom may be cast to contain abrasive particles. The cutting edges of the blade 37 project downwardly beyond the rounded bottom of the shoe to an extent dependent on the pumped fluid pressure in the space 40, and the amount of weight of drill string allowed to be applied. The bottom of the shoe is thus thrust against the bottom of the borehole, pressures of 500 to 1000 lbs being mentioned. The blade 37 has surface hardened cutting faces or they may be provided with hard particles of abrasive material, e.g., tungsten carbide. The vertical reaming edges may have diamond or tungsten carbide inserts. The blade has a vertical central slot which relieves stresses in the blade. In a modification, the blade 37 is replaced by two completely separated plates and the grooves 50 are slightly divergent downwardly whereby, as the blade wears at its bottom edge and descends in the shoe 32, the blade halves are moved slightly outwards to compensate for wear on the vertical reaming edges. The surface of the shoe 32 backing up the cutters is formed with tortuous channels to enable drilling fluid to pass between the cutters and the shoes to dislodge cuttings and other solid material.
Patent GB-1076245-A (GB)
Title: Process for the production of calcium-n'-methylol-n-(4-phthalylaminobenzenesulfonyl)-urea
IPC: C07C311/54
Filed: 1966-02-10
Abstract: Calcium N1 - methylol - N -(4 - phthalylaminobenzenesulphonyl)urea is prepared by reacting 4-phthalylaminobenzenesulphonylurea or its sodium salt with a water soluble salt of calcium in the presence of water and with formaldehyde.
Patent GB-1022091-A (GB)
Title: Synchro arrangement
Inventor: UJEJSKI JADEUS
IPC: G05D3/14
Filed: 1961-02-17
Abstract: 1,022,091. Electric selective signalling systems. EPSYLON RESEARCH & DEVELOPMENT CO. Ltd. Feb. 14, 1962 [Feb. 17, 1961], No. 5956/61. Heading G4H. [Also in Division G1] The angular position of a synchro rotor is defined by an arrangement comprising a static transformer, of a kind which can provide a two-phase output from a three-phase input (e.g. a Scott-connected transformer arrangement (Fig. 1) or a further synchro having two perpendicular rotor windings (Fig. 3, not shown)), having a resistor 25 and a capacitor 26 connected in series across its series-connected output windings 22, 23 so that output terminals connected to the junction of the windings and the junction of the resistor and capacitor provide an output voltage of constant amplitude, phase displaced from the voltage on lines 16, 17 by an amount depending on the rotor position. The phase shifted output may then be converted to digital form by opening a gate to pass clock pulses whenever the voltage on line 16 reaches a predetermined value, and closing the gate when the output voltage at terminal 27 reaches a certain value. The clock pulses passed may be recorded on a single magnetic track.
Patent GB-861005-A (GB)
Title: Inlet control system for supersonic aircraft
IPC: F02C7/057
Filed: 1959-02-20
Abstract: 861,005. Fluid-pressure servomotor-control systems. BENDIX CORPORATION. Feb. 20, 1959 [April 23, 1958], No. 5963/59. Class 135. [Also in Group XXVI] To obtain maximum pressure recovery at the air inlet of an engine of a supersonic aircraft, the oblique shock wave occurring at the inlet is positioned in accordance with Mach number by positioning an inlet wedge member 14 as a function of static and total head pressures as measured by detectors 63, 64. Since such an arrangement may provide a greater air flow than is required over a portion of the operating range a by-pass gate or valve 17 is provided for diverting air from the engine and this valve is controlled by the Mach number measured by static and total head detectors 118, 122 and modified in accordance with the position of the member 14. The member 14, with which is movable a pivoted member 16 situated within the forward portion of the engine nacelle 10 to provide a suitable inlet configuration, is positioned by a servomotor 22 under the control of a spool valve 34 which is moved hydraulically in response to movement between nozzles 48, 50 of a flapper 56 actuated by a diaphragm 58 subject on its upper face to static pressure and on its lower face to total head pressure which has passed through a restriction 68 and a chamber 70 containing a bleed 76 which is adjusted by a needle 74 controlled by a cam 142 movable by the servomotor 22. Sonic flow through the bleed 76 is obtained by connecting it to an ejector 82 fed, e.g. from the compressor of the engine. The by-pass valve 17 is operated by a servomotor 90 controlled by a diaphragm 112 and spool valve 108 similar to those controlling the servomotor 22, a variable bleed 134 being governed by a cam 144 also movable by the servomotor 22. At some angles of attack the system may limit air flow to a greater extent than desired and to overcome this the by-pass valve 17, when closed, opens a valve 152 which bleeds the chamber 70 to cause the inlet area to be increased, this bleed being closed by a valve 162 actuated by an abutment 156 on the cam 142 as the wedge member 14 reaches its fully open position. At the same time a valve 164 is opened by an abutment 166 so that the lower face of the diaphragm 112 is subject to full total head pressure whereby the by-pass valve 17 is maintained closed until the member 14 moves away from its fully open position. At high Mach numbers, when movement of the member 14 ceases, the static head 118 controls the servomotor 90 to maintain the shock wave that is normal to the air flow at a given position along the length of the head.
Patent GB-751124-A (GB)
Title: Improvements in supporting and insulating systems for overhead electric lines
IPC: H02G7/20
Filed: 1954-03-02
Abstract: 751,124. Supporting conductors. McLEAN, G. O., and MILNE, A. G. Feb. 14, 1955 [March 2, 1954], No. 6013/54. Class 36. A supporting structure 2 is provided with a cross arm 1. having shaped slots 3 into each of which is fitted and secured an insulating tube 4 surrounding a conductor. The tubes may be secured in the grooves by wedges 5 and may have flared ends 6. The tubes may be formed around the conductors in situ from suitably shaped flat insulating sheets which are folded around the conductors. Alternatively they may be moulded to shape and may be threaded on to the conductors, or provided with longitudinal slots through which the conductors are inserted, a wedge-shaped cover being provided to close the slot and press on the conductor.
Patent GB-608690-A (GB)
Title: Device for counting the revolutions of a shaft
IPC: G06M1/14
Filed: 1946-02-27
Abstract: 608,690. Indicating-apparatus; counting- apparatus. PEARCE, R. R. Feb. 27, 1946, No. 6120. [Classes 106 (i) and 106 (iv)] [Also in Group XL (c)] Means for counting the revolutions of a shaft comprise a disc secured to the shaft, another disc behind geared to it to rotate at a slightly different speed, windows in the first disc located at different radii and spaced angularly about the axis of rotation and numerals on the second disc to appear at the windows as the shaft rotates to indicate revolutions. A gear-wheel 2 fixed with a cover-plate 5 by screws 4 to a knob 3 secured to a shaft 1 rotates therewith and through a pinion 9 on a countershaft 10 fixed in a casing 6 drives a second gear-wheel 7 with a different number of teeth mounted on an eccentric boss 8 formed on the casing 6. Numerals 12 marked on the wheel 7 appear successively through windows 11 in the wheel 2 and disc 5 as each window comes opposite a fiducial mark 13 while sub-divisions 14 of the angular distance between the windows are marked on the plate 5. If the. loads transmitted are not great, the wheels 2, 7 may be coaxial and may engage with a single pinion or with pinions of different diameters fixed coaxially on the countershaft 10.
Patent GB-1131633-A (GB)
Title: Improvements in or relating to apparatus for forming hollow cylindrical moulds in mould boxes
IPC: B22C13/10
Filed: 1965-02-12
Abstract: 1,131,633. Moulding-machines; centrifugal-casting machines. A. E. CRAWLEY and A. C. RAY. 11 Feb., 1966 [12 Feb., 1965], No. 6140/65. Heading B3F. A hollow sand mould (M), Fig. 7 (not shown), is formed in a perforated tubular mould-box B held coaxially in an outer casing 12 rotatable by supporting-rollers 5 during the moulding operation and, possibly, during subsequent casting. Sand is fed into the mould-box B, in a manner similar to that described in Specification 969,616, by a screw conveyer S of varying pitch in a casing SC inserted into the box by movement of either the box B or the casing SC. A helical guide vane G is secured by one end to the end of the conveyer casing SC and, because its pitch decreases towards its free end T (initially adjacent an end closure ring ER of the box B), sand forced out of a port E of the casing SC towards the box end is compacted between the end closure ER, the vane end T and a former F mounted for free rotation on a shaft 15 (fixed to an end plate 17 of the casing SC) and extending coaxially through the vane G and end closure ER. The compacted mass of sand forms the mould (M) (with a bore determined by the former F) as an axial movement of the box B and its outer casing 12, relative to the screw conveyer casing SC with its vane and former, causes the mass to be built up along the box. Compressed air is fed to the casing SC and to perforated pipes 72 at the back of the screw, and the screw is faced and edged with rubber, to facilitate sand movement. The tubular mould box B has a longitudinal slit 73, Fig. 6, so that when clamps 75 are released it opens sufficiently to release the mould (M). The bore of the sand mould may be finished by spraying with refractory powder. Centrifugal-casting machines.-When the tubular sand mould (M) is complete, end rings ER of the mould-box B are removed and refractory cores (64, 65), Fig. 7 (not shown) are inserted at both ends of the box and covered by the end rings, for forming flange or socket ends on a cast pipe. After spraying and drying, the outer casing 12 with the contained box B is spun, with molten metal inside, by the supporting rollers 5 of the moulding-machine or by a further spinning machine. The mould and its box B may be extracted from the outer casing 12 before core fitting &c., then spun elsewhere for casting.
Patent GB-1121522-A (GB)
Title: Resistor composition
Inventor: ELYARD CHARLES ANTHONY
IPC: H01C7/02
Filed: 1965-02-12
Abstract: The invention relates to resistors which over a temperature range of 90-160 DEG  C. show a positive temperature coefficient of resistance. These are polycrystalline ceramic compositions based on barium titanate in which a small part of the barium is replaced by thorium. An appreciable part of the remaining barium may be replaced by strontium, lead, or mixtures thereof.  A barium thorium titanate (in which the oxygen content may depart from the stoichiometric quantity) is made by ball-milling barium carbonate with thoria and titania, calcining the mixture in air, and re-milling. The mixture is then pressed into discs with a polybutyl methacrylate binder, fired slowly in air to remove the binder, and then sintered in air.  A similar resistor was made in which lead oxide and strontium carbonate were added to the starting mixture.  In general the metals may be mixed as their oxides, carbonate, acetates, or oxolates.
Patent GB-325393-A (GB)
Title: Improvements in or relating to wringers and mangles or stands therefor
IPC: D06F1/00
Filed: 1929-02-26
Abstract: 325,393. Sims & Sons, Ltd., S., Sims, W. H., and Sims, R. S. C. Feb. 26, 1929. Mangles and wringers. -A mangle or wringer a is pivoted at c to the upper members g, g<1>, of a stationary supporting framework b and, when the mangle is folded, the top bar i thereof rests upon these members and supports the mangle horizontally. Sufficient space is left beneath the folded mangle to accommodate a wash-tub &c. The mangle is supported in its operative position by the engagement in a recess in the member g of a screw e carried by a U-shaped bracket d' depending from the strut d which is formed on the folding mangle frame. A table cover m is supported in a vertical position when the mangle is in its operative position by a strut n pivoted at n' to the stationary framework b; when the mangle is folded the table cover is swung over the mangle and framework. Instead of being pivoted directly to the framework b, the mangle may be clipped to a member pivoted thereto.
Patent GB-745384-A (GB)
Title: Improvements in or relating to food products containing food adjuncts
Inventor: MORRISON GILBERT STEWART
IPC: A23L27/00
Filed: 1953-03-06
Abstract: A packeted dry product for mixture with a given quantity of water or milk to make a uniformly flavoured comestible comprises a dry, powdered or granular food, a sweetening agent and a flavouring material sufficient for the whole comestible incorporated into solid fondant, i.e. a solid or plastic preparation of minute sucrose crystals and sugar, e.g. sucrose, glucose or invert sugar, syrup. The dry foods are exemplified by table jelly crystals, lemonade powders, arrowroot and cornflour preparations, custard and blancmange powders.  Pieces of flavoured fondant for packaging with such foods are made, according to an example, by heating 4 parts of granulated sugar with 1 part of glucose and 1 part of water, cooling the syrup so formed, stirring to produce minute sugar crystals and cooling further, melting the fondant so formed at 175 DEG F. mixing an essence of strawberry containing concentrated natural fruit juice and flavouring esters into the molten fondant, and pouring the mixture into flexible moulds of the required size.
Patent GB-1431241-A (GB)
Title: Web tensioning device
IPC: B65H77/00
Filed: 1974-02-12
Abstract: 1431241 Web tensioning devices MASCHINENFABRIK WIFAG 12 Feb 1974 [27 Feb 1973] 06358/74 Heading B8R A web tensioning device comprises a pair of web feed rollers 1, 3, at least one of which has a resilient surface, pressed towards each other by a piston 8 which is movable in a cylinder and articulated to the roller 3, the displacement of the piston for the purpose of regulating the tension in web B being controlled by a biased dancer roller 10 opening or closing valves 15, 16 connected to a valve 17 which in turn is connected to the cylinder. In operation the rollers are driven at a speed VT which is smaller than the speed VV of the web B. The difference between speeds corresponds to the selected web tension.
Patent GB-513256-A (GB)
Title: Improvements in or relating to resinous polystyrene suitable for moulding
IPC: C08F6/28
Filed: 1938-03-01
Abstract: 513,256. Polystyrene. BAKELITE, Ltd. March 1; 1938, No. 6457. Convention date, May 18, 1937. [Class 2 (iii)] Polystyrene for making moulded articles not. liable to "frosting" is prepared by polymerizing styrene at about 110C. to a molecular weight above 40,000 and treating the product so as to eliminate methanolsoluble material in excess of 3 per cent. by weight of the polystyrene, e.g. by mechanical and heat-treatment at about 125-130C. In the Example, styrene 90 per cent. pure is heated at 110C. under reflux until 60 per cent. is polymerized ; polymerization is allowed to continue in batches first without heating, and finally with heating in oil-bath at 110C. until 90-95 per cent. is converted to polystyrene of molecular weight 80,000-85,000 ; the product is kneaded on differential rolls at 125-130C. until at least 97 per cent. is insoluble in methamol; the molecular weight is above 40,000, e.g. 55,000-60,000. Specification 446,580 is referred to.
Patent GB-1024752-A (GB)
Title: Improvements in or relating to air extraction apparatus for vehicles
IPC: B60H1/24
Filed: 1963-02-18
Abstract: 1,024,752. Vehicle bodies. FRANCAISE DU FERODO S.A. Feb. 18, 1963 [Feb. 26, 1962], No. 6472/63. Heading B7B. [Also in Divisions Fl and F4] The space 5 between the radiator 2 and fan 3 of a front engined car forms a low pressure zone connected to the compartment by a structural member 15, a silencer 9 (see Division F1) and a perforated tube 6 located at the base of the rear window to extract air from the interior of the body. The structural member 15 is of U-section having its open side filled in with a metal strip and its ends plugged.
Patent GB-123229-A (GB)
Title: Improvements in Internal Combustion Engines.
Inventor: HAGENS HUBERT
IPC: B63H21/14
Filed: 1918-04-17
Abstract: 123,229. Hagens, H. April 17, 1918. Compression engines.-Engine units, which each comprise a number of parallel cylinders, are arranged radially about a central driving-shaft 2' to which the crank-shafts 4 of the different units are geared. The engine shown in Fig. 1 has sixty cylinders arranged in ten radial planes, the cylinders in each plane comprising a unit having its own carburetting and igniting mechanism. The crank-shafts carry gear wheels 5 which engage a wheel 6 on the central shaft. A faulty unit may be put out of action, e.g. by sliding a gear wheel 5 out of engagement with the wheel 6 on the driving shaft.
Patent GB-1441522-A (GB)
Title: Monoazo dyestuffs derived from 4-amino-2-nitro-diphenylamines
IPC: C09B43/11
Filed: 1974-02-13
Abstract: 1441522 Monoazo dyestuffs BAYER AG 13 Feb 1974 [14 Feb 1973] 6532/74 Heading C4P Novel monoazo dyestuffs of the formula (in which R 1  is an alkoxy group ortho or para to the azo group; R 2 , R 3 , R 4 , and R 5  are independently H, halogen, alkyl, alkoxy, or optionally substituted aryl; Y is H, SO 3 H, NO 2  or optionally substituted sulphamoyl; n=0 or 1 provided that the total number of SO 3 H groups is 1 and that the SO 3 H group is not attached to the benzene ring bearing R 4  if Y denotes a sulphamoyl group) are prepared by alkylating the dyes corresponding to the formula above where R 1  is OH, alternatively by reacting the corresponding p-aminoazobenzene with the appropriate orthohalonitrobenzene compound. The dyes are used for dyeing and printing natural or synthetic polyamide materials.
Patent GB-477500-A (GB)
Title: Improvements in or relating to car couplers
IPC: B61G3/04
Filed: 1937-03-05
Abstract: 477,500. Railway vehicle couplings. NATIONAL MALLEABLE & STEEL CASTINGS CO. March 5, 1937, No. 6613. Convention date, March 7, 1936. [Class 103 (v)] In a railway-vehicle coupling as described in Specification 349,373 in which a releasing lever is operated from the side of the vehicle and is mounted on a trunnion integrally formed with a pair of spaced flanges depending from the under side of the coupling, the lever 12 comprises an arm 14 connected to a member 17 connected in a known fashion to the leg 5 of the locking member 4, the other, hooked end 13 of the lever being mounted on the trunnion 9 integrally formed with the depending flanges 8. The two parts 13, 14 are joined by flanges 20, 21 at right-angles, the flange 21 being extended downwards to form a shelf 26; the hook portion is reinforced by flanges 22, 23 and is provided with heels 32. The operating rod 25 is passed through a hole 24 and its hooked end 29 engages the under surface 28 of the shelf the points of contact lying in a vertical plane which extends diagonally forward towards the knuckle side of the coupling.
Patent GB-372867-A (GB)
Title: Improvements in the manufacture of steam superheater elements
IPC: B21C37/28
Filed: 1931-03-04
Abstract: 372,867. Junction pieces. S T E NNING, H. A. and SUPERHEATER CO., Ltd., Bush House, Aldwych, London. March 4, 1931, No. 6755. [Class 99 (i).] Steam superheater elements for locomotive and similar smoke tube boilers consisting of three or more U-loop tubes arranged in parallel within an enlarged smoke tube and having a single inlet portion for connection to the saturated steam header chamber and a single outlet portion for connection to the superheated steam header chamber, are made by forgewelding at one operation the inlet ends of the inflow legs into a common waist portion, similarly forge-welding the outlet ends of the outflow legs and then swaging down the waist portions to cylindrical form. The portions 10, 11, Fig. 3, are then secured to the header either by welding to tubes 12, 13 connected to the header chambers or by extending them by forging and then expanding them into holes in the header. The return bends 7, 8, 9, Fig. 2, of the tubes 1 and 4, 2 and 5, 3 and 6, may cross each other, or return bends may be arranged in parallel, horizontal or vertical planes. The inlet legs 1, 2, 3, and the outlet legs 4, 5, 6 may be arranged on the arc of a circle so as to form the waist portions without bending the ends thereof, or the ends may be bent so as to be arranged in horizontal or vertical planes. The tubes 12, 13 may be bent upwardly or may be given a swan neck bend so as to be secured to a header disposed between an upper and lower horizontal row of elements. The waist portions may be lengthened prior to being formed cylindrical. In the form in which the tubes are in the arc of a circle, a waist portion with a re-entrant wall 18, Fig. 18, is first formed, the re-entrant portion being then forced out into the form shown in Fig. 21. The cylindrical portions 10, 11 and the tubes 12, 13 may be chamfered and butt welded with welding metal or the tubes 12, 13 may be welded into sockets in the cylindrical portions. The ends of the tubes 12, 13 may also have spherical jointing surfaces as described in Specification 340,073. Specifications 6304/15, 120,042, 120,391, [all in Class 83 (ii), Metal articles &c.], 355,414, and 355,415, [both in Group XXII], are also referred to.
Patent GB-1000400-A (GB)
Title: Improvements in or relating to transport mechanism for an elongate magnetisable medium
Inventor: MILNE PETER
IPC: G11B15/44
Filed: 1961-02-25
Abstract: 1,000,400. Driving magnetic tapes. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 23, 1962 [Feb. 25, 1961], No. 6999/61. Heading G5R. [Also in Division F2] In a record tape drive, a motor 3, which may be a multi-speed motor, drives a shaft 8 through a belt 6. The shaft 8 has an enlarged portion 9 which drives a flywheel 2, or a driven shaft 1, through an idler 10 when a solenoid 13 is energized to move an arm 11 against a spring 12. When the solenoid is not energized, current passes through an electromagnet 14a to attract a driven clutch member 14c to a driving clutch member 14b and couple a pulley 15 to the shaft 8 to drive the shaft 1 through a belt 17 and pulley 16. More than two speeds may be provided by having a stepped portion 9 and a number of idlers or by using stepped pulleys 5 and 7 on the motor and driving shafts.