baber/WOPTO huggingface dataset:
Patent GB-1519500-A (GB)
Title: Manufacture of graft polymers
IPC: C08F255/02
Filed: 1975-11-21
Abstract: Graft polymers are prepared by grafting an ethylenically unsaturated carboxylic acid onto a propylene polymer. The grafting is carried out by means of a free-radical initiator which has a half life period of from 0.01 to 60 minutes at the temperature of the molten propylene polymer. The process is carried out under the conditions given in the Claim. The above process allows the preparation of graft polymers having particularly long side chains.
Patent GB-1484876-A (GB)
Title: Automatic fish-striking device
IPC: A01K97/11
Filed: 1974-11-06
Abstract: 1484876 Clamps R T ANDREE 6 Nov 1974 47988/74 Heading E2B [Also in Division A1] A quick release rod holder provided on an automatic fish striking device comprises a post 106 to which a hook 108 is pivotally attached, the hook being movable between a rod holding position (full lines) and a rod release position (phantom lines) by moving a plate 116 which is pivotally connected to the hook 108 and a link 112 to provide an over-centre arrangement.
Patent GB-1065995-A (GB)
Title: Benzotriazoles and their production
Inventor: RANDELL DONALD RICHARD
IPC: C08L23/00
Filed: 1963-12-06
Abstract: Benzotriazoles of the general formula <FORM:1065995/C4-C5/1> in which R is a straight- or branched-chain alkyl group containing 2-20 carbon atoms may be incorporated, as metal corrosion inhibitors in lubricants, hydraulic fluids, mineral oil compositions and anti-freeze mixtures such as aqueus ethylene glycol or other glycol-containing compositions.  They may also be added to synthetic lubricant compositions which contain an antioxidant, e.g. dioctyl diphenylamine.ALSO:The invention comprises benzotriazoles of formula <FORM:1065995/C2/1> in which R is a straight or branched-chain alkyl group containing 2.20 carbon atoms. They may be produced by reacting a substituted 1,2-phenylenediamine of formula <FORM:1065995/C2/2> with nitrous acid or a compound capable of forming nitrous acid under the reaction conditions. The diamine used as starting material may be produced by the reduction of a nitroaniline of formula <FORM:1065995/C2/3> for example by catalytic hydrogenation.  The nitroaniline, in turn, may be produced by nitration of a substituted aniline of formula <FORM:1065995/C2/4> for example, by treatment with nitric acid, preferably after protecting the amino group by converting it into an acylamino group.ALSO:Benzotriazoles of the general formula <FORM:1065995/C6-C7/1> in which R is a straight or branched chain alkyl group containing 2-20 carbon atoms, may be used for treating metal surfaces to preserve them against corrosion or tarnishing.  The compounds may be used in the vapour phase or as solutions, for example, in aqueous, glycol or polyglycol solvents and may be applied in any conventional manner, such as spraying on as a solution, immersing the metal in a solution or by wrapping the metal in packaging material containing the compound.  Among the metals which may be treated are silver, iron and cadmium and thin alloys and, particularly, copper and its alloys.  In addition the treatment of copper and its alloys with the benzotriazoles enable steam or other vapours to condense thereon as droplets and the compounds may thus be used to improve the heat transfer properties of copper and its alloys.ALSO:Benzotriazoles of the general formula <FORM:1065995/C3/1> in which R is a straight- or branched-chain alkyl group containing 2-20 carbon atoms may be used as metal deactivators to inhibit degradation of polymeric structures in contact with copper.  For example, they may be incorporated into polypropylene material for use as covering material for copper wire or other copper articles.ALSO:A benzotriazole of formula <FORM:1065995/D1-D2/1> in which R is an alkyl group containing 2-20 carbon atoms may be incorporated in paper.ALSO:Copper wire may be coated with polypropylene containing as stabiliser a benzotriazole of formula <FORM:1065995/B1-B2/1> in which R is a straight- or branchedchain alkyl group containing 2-20 carbon atoms.
Patent GB-1033725-A (GB)
Title: Improvements in building structures
IPC: E04C3/04
Filed: 1962-12-24
Abstract: 1,033,725. Metal frameworks. KEENAN BROS. Ltd. Dec. 24, 1962 [Feb. 28, 1962], No. 48543/62. Heading E1K. A structure comprises a beam composed of two or more sections and extending between outer supports A, F and over one or more intermediate supports B-E the sections being pivoted together at a point or points P-S between the supports. The bending moment of a section over an intermediate support is equal to the maximum bending moment on the beam between adjacent supports. Each pivot is situated at a distance from an adjacent support of from one tenth to four tenths the distance between the supports. The conditions for a beam supporting a uniformly distributed load, a rolling load and a load at the centre between two supports are shown.
Patent GB-1271145-A (GB)
Title: Sulphur containing organotin compounds
IPC: C07F7/22
Filed: 1969-10-02
Abstract: 1,271,145. 1,2,4 - Thiadiazole containing organo-tin compounds. M. & T. INTERNATIONAL N.V. 2 Oct., 1969 [2 Oct., 1968], No. 48560/69. Heading C2J. Compounds of the formula wherein R and R<SP>1</SP> are alkyl, cycloalkyl, aryl, aralkyl or alkenyl groups wherein the double bond is not attached to the alpha C atom, which groups may bear non-reactive substituents such as alkyl, aryl, cycloalkyl, aralkyl, alkaryl, alkenyl, alkoxy, carbalkoxy or nitro groups, and n is 1, 2 or 3 are prepared by reacting a compound of formula [R<SP>1</SP> 4-n Sn] m Y n  where Y is O, -OH, -Cl, -Br or -I and n and m are 1, 2 or 3 with a compound of formula in which M is a metal ion or hydrogen and p is the valency of M. M may be an alkali metal, Cu, Al, Fe or Mg ion. The process may be effected in an aqueous organic solvent at 15- 50 C. Specified compounds of Formula I are those in which R is -CH 3  and when n is 1, R<SP>1</SP> is cyclohexyl, butyl or phenyl, and when n is 2, R<SP>1</SP> is butyl. The compounds show biocidal activity.
Patent GB-1273402-A (GB)
Title: Improved method of and apparatus for mixing polymers
Inventor: MANNING DONALD PACE
IPC: B29C48/85
Filed: 1969-10-02
Abstract: 1,273,402. Compression mixers. ALLIED CHEMICAL CORP. 2 Oct., 1969 [15 Nov., 1968], No. 48595/69. Heading B1C. [Also in Division B5] Apparatus mixing liquids of different viscosities especially a polymer composition for extrusion into textile fibrils comprises a screw having a feedzone 4A, a metering zone 6A, and a transition section 5A in which the depth of the screw flight gradually diminishes; the metering zone comprises 45-60 per cent of the length of the barrel and the screw has two to six flight-interruptions to accommodate mixing rings as at 11A, 12A, 13A, the ratio of flight interruption length to barrel diameter being between 0.1 and 0.36. The mixing rings (see also Figs. 3 and 4, not shown) comprise a series of obstructions across the flow of material. The material of greater viscosity is fed through the hopper 20, and that of lesser viscosity with the other, or by means not shown at or near the second interruption. The crest of the screw may be rounded as at 23, 24 and there may be ramps between the turns of the screw as at 22. The screw may be cooled at 25 in conjunction with heating in the transition and metering zones.
Patent GB-1240016-A (GB)
Title: Improvements in or relating to multiple way stop cocks
IPC: F16K11/065
Filed: 1968-10-16
Abstract: 1,240,016. Valves. QUICKFIT & QUARTZ Ltd., and H. R. RICHTER. 26 Sept., 1969 [16 Oct., 1968], No. 49040/68. Heading F2V. A cock comprises a body 1, e.g. of glass, and an obturating assembly formed by a liner 5, e.g. of P.T.F.E., a clamping device 8, 10 whose length can be varied, and a filling 12 of an elastomeric material that can be compressed by the device 8, 10 to vary the seal pressure exerted by the liner 5 on the body of the cock. In the Figure, the obturating assembly is rotated by a member 4 to vary the flow through connections 2, 3, but in Fig. 3 (not shown), it can be rotated and/or moved axially to vary the flow. The filling 12 can be inserted into the liner 5 in a preformed state, or in a liquid state, in the latter case it can comprise two reactants. The ends of the obturating assembly are sealed by glands 9 and 10a, which need not extend over the liner 5. The liner 5 has a circumferential groove 6 and longitudinal grooves 7, which can extend obliquely. The liner may also be grooved externally to improve the seal. The body can have one or any number of connections 3, with the liner 5 grooved to suit.
Patent GB-981708-A (GB)
Title: Production of non-glare glass
IPC: C03C15/00
Filed: 1963-12-12
Abstract: 981,708. Etching. PITTSBURGH PLATE GLASS CO. Dec. 12, 1963 [Jan. 18, 1963], No. 49096/63. Heading B6J. [Also in Division G2] In order to reduce the reflectivity of one surface of a glass sheet-like article while maintaining the resolution of the article unimpaired, the other surface is contacted with molten metal and then the whole article is dipped in an etchant. The metal may be lead, tin or a mixture thereof. It is stated that the contacting of the other surface with the metal minimizes etching of that surface. The etchant may be a mixture of hydrofluoric acid, ammonium bifluoride and one of sorbitol, glycerine or a sugar such as sucrose, dextrose or molasses. The Specification described in detail how to produce a non-reflecting surface having from 1 x 10<SP>5</SP> to 5 x 10<SP>5</SP> projections per sq. inch each being between 20 x 10<SP>-6</SP> and 40 x 10<SP>-6</SP> inches high and having base and plateau diameters between 0À0015 and 0.003 inches and between 0À001 and 0.0022 inches respectively.
Patent GB-1332686-A (GB)
Title: Self-drilling dental implant
IPC: A61C5/35
Filed: 1970-10-15
Abstract: 1332686 Dental implants J SCIALOM 15 Oct 1970 [22 Oct 1969] 49122/70 Heading B3A [Also in Division A5] Self-drilling dental implants of diameter between 0À3 and 1 mm. are formed with grooves 4 by impressing a metal wire in the direction f 1 . This has the effect of upsetting the metal between two successive grooves in the direction f 2  to form projecting portions between the grooves. Cutting portion 2 is formed by  obliquely cutting body 1 using, e.g. a grinding wheel. The implants are made of stainless steel when intended to be driven into the dentine, and of tantalum, titanium, or zirconium and alloys thereof when driven into the bone.
Patent GB-1032318-A (GB)
Title: Curable polysulfide compositions and vulcanizates therefrom
IPC: C08L81/00
Filed: 1964-12-03
Abstract: Polysulphides are cured by heating a composition of the polymer of formula HS(RSS)nRSH wherein R is an alkylene, oxahydrocarbon or thiahydrocarbon radical having at least two primary carbon atoms for connection to the disulphide linkages or mercapto sulphur atoms and n is an integer greater than 1, a metal oxide curing agent for the polymer and ortho nitroanisole Suitable metal oxides are MnO2, TeO2, SeO2, Sb2O3, CaO2, MgO2 and PbO2, in general, in amounts that are sufficient to oxidize substantially all of the free -SH groups present in the polymer.  The orthonitroanisole is preferably present in amounts from 2 to 50 parts by weight per 100 parts by weight of polysulphide polymer.
Patent GB-1068950-A (GB)
Title: Bipolar digital to analog converter
IPC: H03M1/00
Filed: 1965-11-22
Abstract: 1,068,950. Digital-analogue converters. INTERNATIONAL BUSINESS MACHINES CORPORATION. Nov. 22, 1965 [Dec. 24, 1964], No. 49454/65. Heading G4H. A digital to analogue converter for operation on both positive and negative numbers in which the negative numbers are represented by complementary digits including magnitude digits and a sign digit comprises bias means responsive to the presence in the input number of a sign digit representing a negative number to apply a negative voltage (of an amount proportional to the sum of the absolute values of the positive and negative numbers represented by identical magnitude digits) to the output terminal. In one embodiment, (Fig. 1) in which each negative number is represented by the complement plus one of the corresponding positive number, switches 20, 21, 22, 23, 24 are set in accordance with the magnitude and sign digits respectively to pass a positive voltage +V to selected ones of the binary weighted resistances 30, 31, 32, 33 and, when the input is a negative number, to apply a voltage of - V through a resistance 34. When the resistors 30-33 have impedances 1Y, ¢Y, “Y, and #Y respectively, the resistance 34 has an impedance <SP>1</SP>/ 16 Y since the sum of the absolute values of the positive and negative numbers having identical magnitude digits is 16. The switches 20-24 may be replaced by transistors. When the negative numbers are represented by the direct complements of the positive numbers the voltage - V applied to the resistance 34 is replaced by a voltage of - 15V
Patent GB-1444747-A (GB)
Title: Internal combustion engine with soundproof v-belt pulley
IPC: F02B67/06
Filed: 1973-10-24
Abstract: 1444747 Belt gearing H LIST 24 Oct 1973 [10 Nov 1972] 49485/73 Heading F2Q A V-belt drive in an internal combustion engine comprising a driving pulley 6 attached to one end of the engine crank-shaft and provided with a sound-proof housing 10 resiliently attached to the engine cam-shaft drive gear cover (Fig. 1, not shown), the V-belt passages 14 having sound absorbing inserts 16 to form absorption silencers surrounding the belt 15. The housing 10 has a cover (12) (Fig. 1, not shown) held by releasable locking devices 13.
Patent GB-1470496-A (GB)
Title: Graphitising furnace
IPC: F27D11/04
Filed: 1975-12-02
Abstract: 1470496 Graphitizing carbon bodies SIGRI ELEKTROGRAPHIT GmbH 2 Dec 1975 [7 Dec 1974] 49544/75 Heading F4B [Also in Division H5] A furnace for graphitizing a plurality of carbon bodies 3 by direct resistance heating comprises a refractory base 1, support elements 2 let into the base for holding a plurality of said carbon bodies in line with each other in the furnace above the refractory base, end walls 4 housing electrodes 5 at least one of which is adjustably mounted so that the electrodes can be caused to bear against the carbon bodies thereadjacent and cause the carbon bodies to enter into end-to-end abutment, and wall means 8 for enclosing the furnace between the said end walls comprising a plurality of movable segments which can be moved to render the interior of the furnace gas tight. The wall means 8 may be U-section members mounted in channels 7 in the furnace floor as shown or alternatively may be U -section members mounted at the top of side walls anchored to the furnace floor. The furnace may be provided with cooling means for cooling the wall means externally either by a sprinkling system 10 as shown or by cooling tubes fixed to the wall means and connected by flexible hoses to a water reservoir and a pump. Means 11, 12 may also be provided for feeding and withdrawing a protective gas (N 2  specified). The electrodes 5, which may be of graphite and water cooled, may be connected to a transformer or rectifier by means of bus-bars 6.
Patent GB-496343-A (GB)
Abstract: 496,343. Fusible cut-outs; engine stop-gear. STASSEN, E. DE W. Jan. 25, 1938, No. 2414. [Class 38 (i)] [Also in Group XXVI] The ignition circuit of an internal - combustion engine includes a fuse wire which when the engine is too hot is melted by the combustion of a plug in contact with the cylinder head. The fuse wire 20 enclosed by an insulating liner 17 has its ends clamped respectively by a metal casing 24 and by a metal ring 22. The casing screws into a metal socket 25 to which one lead is secured by a terminal 30. The other lead is similarly connected with the ring. The liner is closed at the top by a vented cover 18 and at the bottom by the combustible plug 23. The whole is supported by a bracket 10 bolted to the cylinder head and a switch is provided to byepass the fuse in an emergency.
Patent GB-1212950-A (GB)
Title: Improved power take-off shaft assembly
Inventor: ZAJICHEK WILLIAM J
IPC: F16H3/00
Filed: 1969-10-10
Abstract: 1,212,950. Change-speed gear; shaft couplings. ALLIS-CHALMERS MFG. CO. 10 Oct., 1969 [11 Oct., 1968], No. 49825/69. Headings F2D and F2U. A two-speed power take-off for a tractor has an endwise reversible flanged adaptor 1 which, in one position, Fig. 1, bolted at 27 to flanged sleeve 3, presents a projecting 6-tooth spline 26 for connection to an implement requiring 540 r.p.m., whilst when reversed end-for-end (Fig. 2, not shown), and bolted by the same bolts 27 to a flanged shaft 7, it presents a 21-tooth spline 25 for connection to a 1000 r.p.m. implement, the sleeve 3 and shaft 7 being driven at the respective speeds by gearing, not described, with or without a change-over clutch. Three bolts 27 are used with or without dowels and are asymmetrically spaced to avoid incorrectassembly. Axial flanges 60, 61 ensure concentricity.
Patent GB-1161688-A (GB)
Title: A Method of Producing an 1,2-diaryl-3,5-dioxo-4 (3-oxobutyl) Pyrazolidine
IPC: C07D231/36
Filed: 1966-11-08
Abstract: 1,161,688. Production of 1,2-diaryl-3,5- dioxo-4-(31-oxobutyl) pyrazolidine. SPOFA UNITED PHARMACEUTICAL WORKS. 8 Nov., 1966 [12 Nov., 1965], No. 49878/66. Heading C2C. 1,2 - Diaryl - 3,5 - dioxo - 4 - (3<SP>1</SP> - oxobutyl) pyrazolidines are prepared by condensing methyl-#-haloethyl ketones, CH 3 COCH 2 CH 2 X, where X represents halogen, with a 1,2-diaryl- 3,5-dioxo pyrazolidines or salts thereof in the presence of an alkaline condensation agents and acidifying the alkali-metal salts produced. Reference has been directed by the Comptroller to Specification 781,439.
Patent GB-1073579-A (GB)
Title: Improvements in or relating to smokers' ashtrays
IPC: A24F19/00
Filed: 1964-12-09
Abstract: 1,073,579. Smokers' ashtrays. F. C. PAGE. March 2, 1966 [Dec. 9, 1964], No. 50063/64. Heading A2M. An ashtray comprises an open-topped container 1 provided with an internal shelf 2 at least one edge of which is spaced from the container wall to form a trough 3, the shelf having flutings 4 so that if a lighted cigarette is placed on the shelf with its butt overhanging the trough, the butt will eventually fall into the trough. A lip 5 is provided which extinguishes a cigarette on the shelf 2 if the lighted end is pushed under the lip. The trough 3 may be filled with water. The container may be rectangular or circular and may be made e.g. of glass, aluminium or earthenware.
Patent GB-1016069-A (GB)
Title: Improvements in or relating to frictional bearing surfaces
IPC: F16C33/12
Filed: 1963-12-19
Abstract: 1,016,069. Bearings. AUTOMOBILES M. BERLIET & HYDROMECANIQUE ET FROTTEMENT. Dec. 19, 1963 [Oct. 25, 1963], No. 50128/63. Heading F2A. A metal friction arrangement comprises two elements, a ferrous metal element having a layer of cadmium and an element of light metal based on aluminium having a layer of aluminium oxide. The layers of aluminium oxide and cadmium being arranged in frictional contact with each other.
Patent GB-1451493-A (GB)
Title: Heterocyclic ring-substituted naphthoquinones
IPC: C09B57/00
Filed: 1973-10-30
Abstract: 1451493 Naphthoquinone dyestuffs for colouring polymers SANDOZ Ltd 30 Oct 1973 [3 Nov 1972 18 Dec 1972 12 Jan 1973] 50305/73 Heading C3P [Also in Division C4] Naphthoquinone compounds have the formula in which R 1  signifies halogen, nitro, or unsubstituted or substituted alkoxy or amino, R 2  signifies the carbon atoms necessary to form an unsaturated ring system containing 1 or 2 nuclei and which is unsubstituted or substituted, R 3  signifies an unsubstituted or substituted striazinyl or pyrimidyl radical, and n is 0, 1, or 2, and which is free from sulphonic acid aroups. The compounds may be used for pigmenting viscose, cellulose acetate, polyethylene, polystyrene, p.v.c. and rubber in the mass.
Patent GB-1515938-A (GB)
Title: Xerographic toner carrier
IPC: G03G15/08
Filed: 1975-12-09
Abstract: 1515938 Donor construction for xerographic apparatus XEROX CORP 9 Dec 1975 [3 Feb 1975 (2)] 50416/75 Heading B2L A donor for the type of xerographic apparatus wherein a photoconductor is image-wise exposed at B, developed at C and the image transferred at D comprises an endless support member 24 adapted to pick up charged toner particles 28 and transport them to station C, said donor having a plurality of electrically conductive elements 32 separated and mutually isolated by dielectric material 34 and means for establishing a plurality of electrostatic microfields between elements 32; as shown, said means may comprise two brushes 50 and 52 of opposite polarity past which conductive tabs 38, 40 and 42, 44 respectively pass during rotation of drum 24a, whereby the potential of elements 32 alternates continuously; the larger potential applied to drum 10 at station C overcomes the electrical attraction of the particles 28 to drum 24, and they are thus coated on to the drum. Alternative forms of conductive elements may be provided by (1) winding the drum with 2 wires, either (a) helically or (b) longitudinally (2) providing a drum of a stack of circular conductive plates separated by dielectric or (3) making a drum of 2 helical conductive springs between common end plates and separated by a helical insulating member (see Figs. 3-22, not shown). In case 1(a) above, a helical insulating cord may be wound in between or seated on the wires so as to protrude thereabove, giving automatic spacing from drum 10; similarly the insulating member in (3) above may be raised to perform this function. Drum 24 may be resilient, e.g. an inflated drum, to allow for irregularities in drum 10.
Patent GB-1517998-A (GB)
Title: Supply bin and feeder system combination for textile cops or pirns
IPC: B65H67/06
Filed: 1976-12-03
Abstract: 1517998 Supplying cops SCHWEITER ENG WORKS Ltd (MASCHINENFABRIK SCHWEITER AG) 3 Dec 1976 [18 Dec 1975] 50569/76 Heading D1F  A cop supplying bin and feeder comprises a cop bin 21, 22, 23 with a downwardly inclined movable base 31 leading to a cop removal opening 19, a flap 26 releasably closing the opening 19 and an ejector 40 movable between a rest position (as shown) in which it closes off the cop removal opening 19, a re-supply position (Fig. 3, not shown) beneath the bottom of the bin to allow a new cop to pass into the opening 19, and a feed position (Fig. 4, not shown) in which the ejector 40 feeds the cop along the downwardly inclined bin bottom 31, 23 against the bias of flap 26 and through the cop supply opening 19. The bin base 31 is movable between a feed position (as shown) and a relatively upward position (Fig. 4). The ejector 40 may be in the form of a rake passing through a grid in the bin bottom. A lever 50 may push some cops away from the opening 19 during the feed of a cop through the opening. A lifting shoe 38 associated with the bin base may help prevent adjacent cops 7b being fed through the opening 19 with the leading cop 7a. A conveyor 24 may supply the cops to a re-winding station.
Patent GB-1114756-A (GB)
Title: Power transmission systems for motor vehicles
Inventor: STOTT THOMAS CHARLES FELIX
IPC: B60K17/34
Filed: 1966-11-11
Abstract: 1,114,756. Transmission arrangement. VAUXHALL MOTORS Ltd. 9 March, 1967 [11 Nov., 1966], No.50712/66. Heading B7H. [Also in Divisions F1 and F2] A motor vehicle transmission arrangement comprises an engine (not shown) located adjacent a final drive unit 10 for a pair of road wheels, change-speed gearing 18 located between an engine drive clutch 12 and interaxle differential 32 having a first output shaft 40 connected through transfer gearing 48, 50 to unit 10, and a second output shaft 44 connected to drive a second pair of road wheels through a second final drive unit. The output from the gearing 18 is via the hollow layshaft 24 through which the shaft 40 passes. The gearing 18 is of the constant-mesh type with double-ended synchromesh or dog-tooth clutches 26 and an idler gear 32 of a reverse gear train. The transfer gearing may have bevel gear wheels or be replaced by a chain or toothed belt drive.