baber/WOPTO huggingface dataset:
Patent GB-693105-A (GB)
Title: Improvements in or relating to rock drills
IPC: E21B17/04
Filed: 1949-11-22
Abstract: 693,105. Making rock drills. OWEN, T. L. Nov. 16, 1950 [Nov. 22, 1949], No. 29943/49. Classes 83 (ii) and 83 (iv). [Also in Group XXIII] Forging.-In a method of connecting a rock-drill bit to a drill-rod an integral shank is formed on the drill bit of such a shape that when embedded in the drill rod it cannot move without deformation. The shank 5, Fig. 2, of a high-grade carbon steel drill bit 4 having an elliptical axial and transverse crosssection, is forced into the heated end 7a of a drill rod 7 between a die 10 and plunger 14 which upset the end 7a and cause it to closely embrace the shank 5. The die 10 is in halves which clamp the end of the rod and has an enlarged end recess 13 of cruciform cross-section in which the arms 3 of the drill bit slide and are accurately positioned. An intermediate enlarged recess 12 of the die encloses the part of the rod end 7a to be forged and is slightly larger in diameter than the body of the drill bit 4 which enters the recess during forging. The plunger 14 is of cruciform cross-section and is a sliding fit in the recess 13 of the die.. The end face of the plunger has V-section grooves 14b which engage the tungsten-carbide inserts 2 on the drill bit, channels 14c in the grooves preventing damage to the cutting edges of the inserts. In carrying out the process the drillrod end 7a is heated and the bore 15 is enlarged by the insertion of a punch, the outer diameter being reduced by swaging and the end 7a is then reheated if necessary before insertion into the die 10. In a modification, the shank 5 may be circular in axial cross-section with diametricallyopposed flats to prevent relative rotation. In a further example the shank 5, Fig. 4, may have a series of circumferential grooves 5a and longitudinal ridges 5d. In modified forms of apparatus the enlarged end recess 13 of the die 10 may be omitted, and the bore 12 may be replaced by an opening which is hexagonal in cross-section, the volume of the space enclosed being substantially equal to the volume of the shank 5 plus the volume of the part of the heated end of the drill-rod to be forged.
Patent GB-499193-A (GB)
Title: Improvements in or relating to reinforced collapsible file casings
IPC: A47B43/02
Filed: 1937-04-16
Abstract: 499,193. Filing - cabinets. SCHEINMAN, S. April 16, 1937, No. 30003/38. Convention date, May 16, 1936. Divided out of 493,923. [Class 18] A collapsable paper-board file casing C constructed with metal end frames F as described in Specification 493,923 is particularly intended for grouping in stacked formation and to hold drawer elements. Specification 437,024 also.is referred to.
Patent GB-770559-A (GB)
Title: Improvements in or relating to filters
IPC: B01D29/00
Filed: 1954-10-19
Abstract: 770,559. Filters. WALTER, F. Oct 19, 1954 [Oct. 19, 1953], No. 30016/54. Class 46. Perforations 1, 2, Fig. 2 of sheet material 3 for supporting filter media 4 e.g., kieselguhr contained in liquid undergoing filtration are so constricted in the direction of filtration as to provide an edge bounding the area of least cross-section of each perforation whereby small bridges are built up of the deposited filter medium. The perforations may be circular or elongated and the sheet material of metal, glass or plastic material is corrugated and formed into the desired shape e.g. a cylinder. Perforations 1, 2, Fig. 4, are confined to the troughs whereby filter medium 4 becomes arched between the crests and the margins 5 of the elongated slots 1 and round holes 2 are pressed out in the direction of flow thus forming restricted passages leading to the perforations.
Patent GB-843921-A (GB)
Title: Improvements in clutch control devices for automobile vehicle transmission
IPC: F16D48/06
Filed: 1956-10-02
Abstract: 843,921. Clutch control mechanisms. FRANCAISE DU FERODO S.A. Oct. 2, 1956 [Oct. 5, 1955; Dec. 17, 1955], No. 30044/56. Class 80 (2). In an automotive vehicle comprising an engine 11 having a driver-actuated throttle, a clutch 10, a gear-box 12 with a driver-actuated lever 25 there is provided (1) a first declutching device sensitive to the engine speed and operative to declutch when the engine is idling; (2) a second declutching device having an electric circuit and a switch 24 actuated by the gear-box lever 25 to declutch when changing gear; (3) a further control of one of the two declutching devices comprising a second electric circuit including a switch 31 actuated by the position of the gears in the gear-box 12. As shown, the vehicle dynamo 15, Fig. 2, is connected to a clutch coil 13 so that the clutch 10 is disengaged at idling engine speeds. The circuit including the gear lever switch has a relay coil 18 connected to a battery 19. When the coil 18 is energized the circuit to the clutch coil 13 is broken and the clutch 10 disengages. The switch 31 is open only when the gear-box is in the neutral position. Earthed leads 22, 23, connected to the switch 31 have switches 26, 29 respectively. Switch 26 is closed when the engine bonnet 27 is raised and switch 29 is closed or open depending on whether the weight applied to the driver's seat 30 is less or greater than a predetermined amount. Thus, if the bonnet 27 is raised or the driver's seat 30 is empty or occupied by a child the relay coil 18 is energized, the clutch coil 13 is deenergized and it is not possible to drive the vehicle. In a modification the switches 26, 29 are in series. In another modification the clutch is of the centrifugal type disengageable electrically. As shown in Fig. 5, the circuit including the gear-box switch 31 has a switch 36 closed at low speeds of the gear-box output shaft 12b, and a warning lamp 37. The switch 31 is only open at first, second, and reverse gears. If therefore the vehicle is running in third or higher gear and the vehicle speed is insufficient for that gear the switch 36 closes, the clutch 10 is disengaged and the lamp 37 indicates to the driver that a gear change down is required. In a further modification the circuit including the gear-box switch 31, Fig. 6, has an electromagnet coil 41 the plunger 42 of which is connected to the lever 43 of the carburetter valve 44. The accelerator pedal 45 is connected to the lever 43 by a spring 47. Thus, if the vehicle is running at a speed insufficient to keep the switch 36 open the coil 41 is energized and the valve 44 is closed irrespective of the position of the accelerator pedal 45. The engine speed thus drops and the clutch disengages automatically.
Patent GB-1479989-A (GB)
Title: Treatment of pigment
IPC: C09C1/36
Filed: 1975-07-17
Abstract: 1479989 Treating TiO 2  TIOXIDE GROUP Ltd 27 May 1976 [17 July 1975] 30049/75 Heading ON TiO 2  pigment is treated by forming an aqueous dispersion of the pigment containing a water-soluble P compound in amounts of 0À2- 1-0% by weight expressed as P 2 O 5 , adding to the dispersion acidic water-soluble compounds of Al, Ti and Zr in amounts to provide 2À5- 3-5% Al 2 O 3 , 0À5-1À5% ZrO 2  and 1À5-3% TiO 2  and thereafter a water-soluble Si compound in an amount to provide 0À2-2À0% SiO 2 , adjusting pH to 3À5-4À5 and adding a water-soluble P compound in amounts to provide 0À2-1À0% P 2 O 5  and then an alkaline reacting water-soluble Al compound in amounts of 0À5-1À5% Al 2 O 3  (all percentages by weight being based on the weight of TiO 2  in the pigment) and adding to the dispersion a mineral acid to adjust pH to 6À5-8 and recovering the treated pigment. The starting pigment is preferably a calcined "sulphate process" titanium dioxide containing at least 95% rutile. The starting pigment may contain 0À1-0À5% Al 2 O 3 . The aqueous dispersion containing the watersoluble P compound is preferably wet milled in the presence of an alkali prior to further treatment. The Al, Ti and Zr compounds are preferably added to the dispersion in the form of a mixed aqueous solution, e.g. a mixed sulphate solution of pH 0À7-1À2. The treated pigment after recovery may be milled in a fluid energy mill, preferably in the presence of an amine (e.g. an alkanolamine) or polyol.
Patent GB-1472019-A (GB)
Title: Device for measuring heat consumption in individual apartments in a centrally heated building
IPC: G01K17/08
Filed: 1975-07-17
Abstract: 1472019 Measuring heat flow electrically SVENSK VARMEMATNING CB-SYSTEM AB 17 July 1975 [18 July 1974] 30054/75 Heading G1N Apparatus for determining the rate of heat consumption in individual apartments of a centrally heated building comprises means for cyclically measuring the difference between the outside temperature and that inside each apartment and is characterized in that the temperature sensors are energized for short periods only for each measurement. As shown, the inside temperature transducers R i1  - R in  are cyclically connected by switch O 1  to a differential circuit D which also receives an outside temperature signal measured by transducer R y . The difference is converted at AD to a digital signal and sent via synchronously operating switch O 2  to counters R 1  - R n . Switches O 1 , O 2  are controlled by a timer T which also controls a pulse generator K to feed synchronous short voltage pulses to transducer Ry and the selected inside transducer R i1  - R in  for each measurement, the frequency of timer T determining the calibration of counters R 1  - R n  in degree hours.
Patent GB-1118932-A (GB)
Title: Anti-freezing solution for internal combustion engines
IPC: F01P11/20
Filed: 1965-07-15
Abstract: An anti-freezing solution comprises an aqueous solution of, as an anti-freezing agent, a polyalcohol and, as a non-ionic surface-active agent, a polyethoxy polyethylene glycol or a polyethoxy fatty alcohol in which the fatty alcohol is a mixture of cetyl alcohol and stearyl alcohol.  Optional additives include silicone anti-foaming agents such as polydimethyl siloxanes and corrosion inhibitors such as borax.
Patent GB-1375494-A (GB)
IPC: F16C32/06
Filed: 1972-06-28
Abstract: 1375494 Externally pressurized bearing G J WATT 28 June 1972 [6 July 1971] 30319/72 Heading F2A An externally pressurized bearing having a pair of relatively movable bearing members 11, 15 having opposed bearing surfaces separated by a clearance through which bearing fluid is passed, has at least one of the members formed with an imperforate flexible membrane 14, one side of which constitutes the bearing surface of the member, the other side of the membrane being attached to lands 16 on the member which support the membrane and allow it to deform in response to variations in fluid pressure and bearing load. The fluid may be supplied to the clearance via a duct 12 which opens into an annular groove 13.
Patent GB-363747-A (GB)
Title: Improvements in slitting machines
IPC: B65H18/10
Filed: 1930-10-10
Abstract: 363,747. Slitting webs. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Cameron Machine Co. ; 61, Poplar Street, Brooklyn, New York, U.S.A.) Oct. 10, 1930, No. 30345. [Class 31 (i).] Stationarycutter machines.- A web 3 of flexible material passes over a roller 1 where it is slit into bands by a score cutter 2 working against a glass hard roller 1 and is then wound up on a drum 5, the vibrations of the bands being damped by the weight of a hinged bar 6 adjustably flexed to bear on the bands. The bar 6 is flexed as required by screwing its supports 7 out or in. The bar may carry deflectors 11 adjustable along the bar and convexly curved in two directions. Sockets 13 on the bar 6 secure it to its support 7 by the sockets sliding lengthwise over all the heads 12 of the supports at once and being locked thereon by a single pinching screw.
Patent GB-1369709-A (GB)
Title: Carbamic acid derivatives and their use as pesticides
IPC: A01N47/22
Filed: 1972-06-29
Abstract: 1369709 Carbamic acid derivatives PFIZER Ltd 26 June 1973 [29 June 1972] 30396/72 Heading C2C The invention comprises compounds of the general Formula I: in which R<SP>1</SP> is a C 1 -C 6  alkyl group; R<SP>2</SP> is hydrogen, C 1 -C 6  alkyl or an "acyl" group; R<SP>3</SP> and R<SP>4</SP> are halogen, C 1 -C 6  alkyl, C 1 -C 6  alkoxy, C 1 -C 6  alkylthio, trifluoromethyl, nitro, cyano, or aryl; m is 0-4, n is 0-5 and when m and/or n is more than 1, R<SP>3</SP> and/or R<SP>4</SP> respectively may represent the same or different groups; X is oxygen or sulphur; and Y is sulphur or a sulphinyl or sulphonyl group with the proviso that Y is not a sulphonyl group in the 4-position of benzene ring A relative to the group -OCXNR<SP>1</SP>R<SP>2</SP>, when m is 0 and either n is 0 or (R 4 ) n  is 4-lower alkyl, X is oxygen and R<SP>2</SP> is hydrogen. The compounds may be prepared as follows:-(a) the compounds in which Y is sulphur and R<SP>2</SP> is hydrogen by reacting a phenylthiophenol of formula  with R<SP>1</SP>NCO or R<SP>1</SP>NCS; (b) compounds in which Y is sulphinyl or sulphonyl by the oxidation of compounds of Formula (I) in which Y is sulphur; alternatively the intermediate p-phenolthiophenols may be oxidized to the corresponding sulphinyl or sulphonyl compounds which are then reacted with R<SP>1</SP>NCO or R<SP>1</SP>NCS or treated as in (c) and (d); (c) compounds of the Formula (I) in which R<SP>2</SP> is a C 1 -C 6  alkyl group may be prepared from an alkali metal derivative of an appropriately substituted phenyl thiophenol or of a corresponding sulphinyl or sulphonyl compound by treating with a carbamoyl or thiocarbamoyl chloride of formula R<SP>1</SP>R<SP>2</SP>NCXCl; and (d) compounds of the Formula (I) in which R<SP>2</SP> is acyl may be prepared from the corresponding compounds in which R<SP>2</SP> is hydrogen by acylation. The "acyl" groups referred to are defined as of formula -COR<SP>5</SP> in which R<SP>5</SP> is hydrogen, alkyl, alkoxyalkyl, alkylthioalkyl, haloalkyl, phenylalkyl, phenoxyalkyl, phenylthioalkyl, or phenyl, the alkyl and alkoxy groups referred to having 1-6 carbon atoms and any benzene ring being optionally substituted by one or more of the groups specified in the definition of R<SP>3</SP> and R<SP>4</SP>. Numerous examples of the preparation of the compounds are given. The compounds of the invention may be used as active ingredients in pesticides and may be used in the forms of dusts, wettable powders, or as dips or sprays comprising an aqueous emulsion of an emulsifiable concentrate.
Patent GB-520444-A (GB)
Title: Improvements relating to cases or holders for sticks of lip salve and similar preparations
IPC: A45D40/06
Filed: 1938-10-21
Abstract: 520,444. Holders for lip salve &c. JARRETT, RAINSFORD, & LAUGHTON, Ltd., and LAUGHTON, G. A. Oct. 21, 1938, No. 30442. [Class 18] In a case or holder for a stick of lip salve &c. of the kind in which a sleeve a contains a cap (not shown) containing the lip stick, and is slotted to take a pin projecting from the cup into a helical slot in a barrel (not shown) surrounding the sleeve, so that rotation of the sleeve by means of its end b projects the stick of lip salve &c. the sleeve has a resilient tongue h pressing lightly on the cup to position it throughout its movement. Specification 468,035 is referred to.
Patent GB-389769-A (GB)
Title: Improvements in or relating to pneumatic apparatus for separating or sorting solid materials
IPC: B03B4/02
Filed: 1932-10-31
Abstract: 389,769. Separating solid materials. LAURENT, E., 2, Rue Abbe Lemire, La Madeleine-Lez-Lille, France. Oct. 31, 1932, No. 30548. Convention date, Nov. 24, 1931. [Class 117.] In apparatus for separating coal and stone or other materials according to density of the type in which the mixed materials are passed over a jigging perforated table 4 and simultaneously subjected to the action of an upward air current, an air-driven propeller 12 is mounted in the air duct 9 leading to the underside of the table and drives a centrifugal or other governor 13 which lifts to varying degrees a relief valve 18 in the compressed air supply chamber. The governor simultaneously controls, through a system of levers, the flaps by which the discharge openings in the table are regulated.
Patent GB-882355-A (GB)
Title: Improvements relating to grinding balls
IPC: B24B31/14
Filed: 1960-09-05
Abstract: 882,355. Balls for grinding processes. STEATIT-MAGNESIA A.G. Sept. 5, 1960 [Sept. 4, 1959; Feb. 29, 1960], No. 30557/60. Class 60. An ellipsoidal grinding ball has the minor axis h of the generating ellipse as the axis of revolution, this axis being between 0.5 % and 5% shorter than the major axis. Alternatively the ball may be an ellipsoid, proportioned as described above, with an equatorial ridge having a radius of curvature in the plane of Fig. 2, which is smaller than h (2), h being, as in Fig. 1, less than d.
Patent GB-192811-A (GB)
Title: Improvements in revolving cylinder internal combustion motors
IPC: F02B75/26
Filed: 1921-11-16
Abstract: 192,811. Demartini, J. L. Nov. 16, 1921. Valve-gear.-In a revolving-cylinder engine, the valves are worked from fixed cams 12 on the inside of a stationary casing.
Patent GB-1020533-A (GB)
Title: Coated paper
IPC: D21H19/82
Filed: 1962-08-09
Abstract: A coated paper resistant to moisture vapour transmission comprises a paper substrate e.g. kraft, bond or parchment paper, having thereon an aqueous emulsion-deposited coating comprising 30-95% by weight of at least one ethylene polymer and, correspondingly, 70-5% by weight of at least one rubbery film forming thermoplastic polymer which has a film-forming temperature of less than 50  DEG C. and an elongation at break of at least 150%. The ethylene polymer may be an ethylene homo-polymer or copolymer. The rubbery film-forming thermoplastic polymer may be (i) a rubbery copolymer of at least 90% by weight of isobutylene and less than 10% by weight of a conjugated 1,3-diene; (ii) a rubbery butadiene homo-polymer or copolymer; or (iii) a hydrolysed copolymer of ethylene and alkyl acrylate in which at least 10% by weight of the alkyl acrylate moiety has been hydrolysed to carboxylate groups.  The two polymers may be present as separate superimposed coatings.  The coating in immediate contact with the paper substrate may be the hydrolysed copolymer in (iii).  The coating which may be applied as a plurality of layers comprises 5-70% by weight of a copolymer of vinyl acetate and a maleic or fumaric acid ester of a monohydric alcohol containing from 4-8 carbon atoms in the molecule e.g. a dibutyl ester, the balance of the coating being polyethylene.  The coating or coatings may be formed by applying e.g. by roll coating, knife coating or spraying, to the paper an aqueous dispersion or latex of thermoplastic polymer solids and heating to coalesce the solids to form a continuous film on the paper.  At least one additional layer may be formed over the coalesced polymer layer on the paper by reapplying the latex and repeating the drying and heating steps.  The ethylene may be copolymerized with vinylidene monomers containing the group <FORM:1020533/B1-B2/1> e.g. vinyl halides, acrylic and methacrylic acids, esters of alcohols containing 1-18 carbon atoms with acrylic and methacrylic acids, acrylonitrile, vinyl esters of fatty acids containing 1-18 carbon atoms such as vinylacetate, and styrene.
Patent GB-1272672-A (GB)
Title: Improvements in or relating to the manufacture or preparation of yoghourt
Inventor: IRWIN LEONARD
IPC: A23C9/12
Filed: 1969-06-17
Abstract: 1,272,672. Yoghurt. L. IRWIN. 16 Sept., 1970 [17 June, 1969], No. 30611/69. Heading A2B. [Also in Divisions C6 and F4]  A yoghurt culture is incubated in a sealed polypropylene vessel 15, Figures 1 and 2, in a heat-insulating chamber 13-14 provided within a casing or container formed of. foamed or expanded polystyrene.
Patent GB-691038-A (GB)
Title: Copolymerisation of vinyl phenol type compounds with styrene type compounds
IPC: C08F16/02
Filed: 1948-11-26
Abstract: Vinyl phenols or their lower nuclear homologues, e.g. methyl, ethyl or propyl substituted derivatives, are copolymerized with styrene compounds, e.g. styrene, monomethyl, ethyl and a -methyl p-methyl styrene and mono- and dichlorstyrenes; maleic acid esters and half esters of saturated aliphatic alcohols; acrylic compounds, e.g. methacrylic, a -ethyl, a -chlor, a -fluor acrylic acids, methyl and ethyl acrylates, ethyl and butyl methacrylates, methyl a -chlor-acrylate, acrylonitrile, methacrylonitrile, acrylyl chloride, and acryl- and methacrylamide; vinyl organic esters, e.g. formate, acetate, propionate, butyrate and stearate; vinyl ethers, e.g. methyl, ethyl, isopropyl, butyl, phenyl, tolyl, naphthyl, vinyl and propenyl ethers; vinyl ketones, e.g. methyl, ethyl, isopropyl, and butyl ketones; N-vinyl compounds, e.g. N-vinyl carbazole, pyrrole and piperidine; polymerizable allyl compounds, e.g. esters of allyl, methallyl, ethallyl, chlorallyl, crotonyl, cinnamyl, butene-1-ol-3, pentene-1-ol-3 and butadiene-2 : 3-ol-1, and polyhydric allyl alcohols with formic, phenoxy formic, acetic, lactic, butyric, glycollic, salicylic and oleic acids; or allyl ethers and allyl substituted aldehydes and ketones and their acetals and ketals.  The reactive group in the latter may be chemically after-treated, and the vinyl ester copolymers may be hydrolysed partially or completely to produce vinyl alcohol units which in turn may be acetalized, e.g. with formaldehyde or hexamethylene tetramine.  Copolymerization may be effected by heat or ultra-violet light with catalysts such as acetyl, crotonyl, benzoyl, tertiary-butyl, and isopropyl benzene peroxides, tertiary butyl perbenzoate, tertiary butyl and isopropyl benzene hydroperoxides, hydrogen peroxide, alkali metal or ammonium persulphates, Friedel-Craft catalysts, such as boron tri-fluoride, strong hydrochloric or sulphuric acid and acid-activated clay, or a Redox system with, e.g. sodium sulphite, in a homogeneous phase or in an aqueous dispersion of pH 7 or less.  High molecular weight polymers may be separated by dissolving the initial resin in benzene, for example, and fractionally precipitating by an ethanol/petroleum ether mixture. The resins may be after-treated by cross-linking and/or etherification.  Examples describe the homogeneous copolymerization of meta-vinyl phenol with styrene, ethyl acrylate, allyl caproate, diamyl maleate, ethyl vinyl ether containing divinyl ether, diallyl phthalate, and N-vinyl carbazole; of orthovinyl phenol with styrene; the copolymerization of meta-vinyl phenol with acrylonitrile, vinyl acetate or styrene in emulsions, in which sulphonated castor oil, polyethylene oxide, sodium sulphite and hydrogen peroxide are used; and the copolymerization of a solution of b -methyl styrene and m-vinyl phenol in toluene.  Specifications 691,035, 691,036 and 691,037 are referred to.
Patent GB-1107585-A (GB)
Title: New or improved self-cleaning filter
Inventor: GIST JOHN FREDERICK
IPC: B01D29/11
Filed: 1965-07-20
Abstract: 1,107,585. Fluid filter. G. & A. FIRKINS Ltd. 29 April, 1966 [20 July, 1965], No. 30731/ 65. Heading B1D. An oil filter comprises a cylindrical screen 17 which is cleaned during use by a reverse flow of filtrate from an assembly of parallel tubes 19 having outlet slits directed towards the screen, the assemlbly being arcuately reciprocated on the downstream side of the screen. As shown, four tubes 19 are spaced at 90‹ intervals inside screen 17. and handle 35 serves to actuate a semi-rotary pump 26, which draws filtrate from chamber 14 and delivers it by ports 32, 33 34 to tubes 19, and to rotate the tube assembly, through more than 90‹. An assembly of three spaced tubes would be reciprocated through more than 120‹. Screen 17 may be sintered bronze or stainless steel and is closed by plate 18 at one end. and tubes 19 may carry rubber strips which make sealing contact with the screen. The housing is periodically cleared of sludge by removing a drain plug closing port 37. In a larger filter, the reverse flow fluid may be supplied through a power operated pump, and the pump and tube assembly driving means may be separate.