baber/WOPTO huggingface dataset:
Patent GB-1434641-A (GB)
Title: Thermoplastic polyolefin compositions with controlled degra dability
IPC: C08K5/00
Filed: 1973-09-19
Abstract: 1434641 Degradable polyolefin compositions CHEMISCHE WERKE HULS AG 19 Sept 1973 [20 Sept 1972] 43908/73 Heading C3P Thermoplastic compositions of controlled degradability comprise relative to the polyolefin (a) 0À01 to 1 weight per cent of an antioxidant, (b) 0À02 to 1 weight per cent of an organic copper salt, (c) 0À1 to 2 weight per cent of an organic manganese, cobalt or iron salt, (d) 0À01 to 0À4 weight per cent of a peroxide, (e) 0À02 to 3 weight per cent of a ketone and optionally (f) 1 to 10 weight per cent of an optionally epoxidized hydrocarbon oil, carboxylic acid ester or carboxylic acid amide. The polyolefin may be a polymer or copolymer of ethylene, propylene or butene-1. The antioxidant may be a hindered phenol. The copper, manganese, cobalt and iron salts may be resinates, naphthenates, oleates, palmitates, stearates and octoates. The peroxide may be cumene, benzoyl, propyl, t-butyl, cyclohexyl, barium or potassium peroxide. Preferably a mixture of a peroxide which decomposes at polymer processing temperatures with a peroxide which is stable at such temperatures is used. The ketone may be benzophenone, benzoin, 2,4-dimethyl benzophenone, o-dibenzoyl benzene or a hydroxyketone of melting point above 250‹ C. The epoxidized oil may be an epoxidized polyethylene or polybutadiene, or an epoxidized vegetable oil. The compositions may also contain light stabilizers, reducing agents such as disodium phosphite and calcium sulphite, and fillers such as kaolin, clay and diatomaceous earth. The compositions may be subject to silent electric discharges, e.g. corona discharges. Examples describe compositions of polybutene-1, polypropylene and polyethylene.
Patent GB-1166045-A (GB)
Title: Photographic Physical Developers and Monobaths
IPC: G03C5/38
Filed: 1966-10-04
Abstract: 1,166,045. Physical developers and monobaths. EASTMAN KODAK CO. Oct. 4, 1966 [Oct. 4, 1965] , No. 44269/66. Heading G2C. A physical developer comprises a solution containing a silver halide developing agent, a reducible water-soluble metal. salt e. g. AgNO3 or Cu, Hg, Pt or Au or Pd salts, an ionic surfactant and an organic anti-foggant and has a stabilisation factor which is greater than the sum of the stabilisation factors of developer a) which is free from the anti-foggant and developer b) which is free from the surfactant, aqueous mono-baths additionally containing a silver halide complexing agent which when used contain at least 5 x 10<.3> gms/litre of the reducible metal salt are also described. Specified developers are dihydroxy benzenes, p - phenylene diamines, amino phenols ascorbic and iso-ascorbic acid or water-soluble salts thereof, pyrocathechol, gallic acid gentisic acid, pyrogallol and 1-phenyl-3-pyrazolidone. Numerous antifoggants are listed and include arylamines, triazoles, tetrazoles, thiazoles, oxazoles, thionemicarbozides, pyrimidines, thiazolidines, iodenium derivatives, thio barbituric acids, benzene sulphinic acids, alkaloids, thioanilides, saccharins, pyrazolines, brominated fatty acids, acetylene dicarboxylic acids, protein degradation products and thiols.
Patent GB-1376670-A (GB)
Title: Driving mechanism for the turntable of record players
IPC: G11B19/26
Filed: 1972-09-26
Abstract: 1376670 Speed changing LUXORINDUSTRI AB 26 Sept 1972 [27 Sept 1971] 44457/72 Heading G5R [Also in Division F2]  A drive for a record-player turntable 3, providing two-speed ratios both in the same direction, comprises a friction wheel 14 arranged between and movable radially of the turntable selectively into engagement with either one of two concentric flanges 5, 6 on the turntable according to the direction of rotation of a driving electric motor 9, the wheel 14 being freely mounted on a shaft 15 carried in a bracket 16 which can pivot about an offset axis 17, the wheel 14 being also subject to brake drag as by engagement of felt-padded blade springs 24, carried by the wheel 14, with a part 18 secured to the shaft 15, such brake drag causing the bracket to swing about its piovt axis 17 in one or other direction in accordance with the direction of the torque applied to the friction wheel 14 by the motor 9. As shown the wheel 14 is fast with a pulley 13 driven through a belt 12 by the motor 9. Alternatively, the friction wheel 14 may be directly mounted on a pivoted motor. The take the brake drag torque the shaft 15 is stationed by a pawl 26 engaging a toothed wheel 20 meshing a smaller wheel 19 fast on the shaft 15, the pawl being released to free the shaft of drag torque by lowering the pick-up arm 2 to its idle support position. The traction pressure of the friction wheel 14 against the flange 5 or 6 increases with drive torque.
Patent GB-1513079-A (GB)
Title: Rotary ring assemblies for spinning machines
IPC: D01H7/58
Filed: 1976-10-28
Abstract: 1513079 Bearings H YAMAGUCHI 28 Oct 1976 [28 Oct 1975] 44843/76 Heading F2A [Also in Division D1] A rotary ring is provided with a peripheral wedge shaped groove, the walls of the groove being provided with two series of parallel secondary grooves C 1 , C 2  inclined at an angle to the radial plane of the ring, the base of the wedge shaped groove carrying an annular bearing member 4 in sliding engagement with a complementary annular recessed bearing surface 3 in the surrounding wall of the ring holder 2. The surrounding wall is closely adjacent and of complementary configuration to the grooved peripheral surface of the ring 1, and the space between the ring 1 and the holder 2 is covered by elastic dust covers 5, 6 attached to the upper and lower surfaces of the rotary ring 1. The dust covers 5, 6 may be provided with a series of inclined parallel grooves on their inner surfaces. The grooves on the ring and dust cover assist in the exclusion of dust and fibres from the bearing surfaces of the ring and create an air bearing for the ring. The ring is rotated by friction of the rotating traveller and the dust covers 5, 6 may brake the ring as its rotational speed reduces.
Patent GB-960494-A (GB)
Title: Improvements in or relating to polarisers for very high frequency electro-magnetic waves
Inventor: MARK JOHN RICHARD
IPC: H01Q13/02
Filed: 1961-12-14
Abstract: 960,494. Waveguides. MARCONI CO. Ltd. Sept. 12, 1962 [Dec. 14, 1961], No. 44872/61. Heading H1W. A polarizing arrangement for producing linearly, circularly or elliptically polarized waves comprises a length of circular waveguide containing an odd number of axially-spaced diametrical conductor units for producing a rotation of either 45 degrees or zero of a linearly polarized input wave. As shown, the circular waveguide contains three units 1B1, 1B2, 2B1 of three conductors, the first two units 1B1, 1B2 being fixed and arranged respectively at right angles and at 22¢ degrees to the plane of polarization of the input wave. The third unit 2B1 is rotatable between two positions, in the first of which it lies parallel to the first unit 1B1, whereby a total wave rotation of zero is produced, and in the second of which it lies at 45 degrees to the first unit, whereby a total wave rotation of 45 degrees is produced. In both positions, the wave suffers two rotations of 22¢ degrees. Thus the amount of energy reflected by the conductor units is the same whether the wave is rotated or not. The circular waveguide is coupled to a horn D through a rectangular waveguide C1 containing a phaseshifting vane C2, the dimensions and disposition of these three elements being such that, when the circular waveguide is set to produce at rotation of 45 degrees, a circularly polarized wave or a wave of desired ellipticity is produced at the mouth of the horn.
Patent GB-970006-A (GB)
Title: Method of stabilizing hydrochlorinated rubber
IPC: C08C19/16
Filed: 1962-11-28
Abstract: A solution of rubber containing at least 51% of cis- 1.4-polyisoprene is treated with hydrogen chloride in the presence of a phenolic heat and/or light stabilizer containing at least two substituents on the benzene ring in addition to the hydroxyl group.  The rubber preferably containing at least 90% of cis- 1-4-polyisoprene and the stabilizer may be dissolved in a rubber solvent and treated with hydrogen chloride. Specified stabilizers include 2-6-ditertiary butyl-p-cresol, butylated hydroxy anisole, creosol, engenol and isoengenol while benzene chloroform and toluene are specified solvents.  Natural rubber is included in the term rubber.
Patent GB-1209240-A (GB)
Title: A method for the pollination of alfalfa and other trefoils
Inventor: HARUSTIAK MILOS
IPC: A01G7/02
Filed: 1968-09-24
Abstract: 1,209,240. Pollinating alfalfa. VYZKUMNY USTAV ZEMEDELSKYCH STROJU. 24 Sept., 1968 [2 Oct., 1967], No. 45234/68. Heading A1E. Pollination of alfalfa or other trefoils is effected by subjecting the plants to the blowing action of a stream of warm air and carbon dioxide from the exhaust of a jet engine mounted on a vehicle. The engine may be equipped with means, e.g. an injector, to reduce the temperature of the exhaust.
Patent GB-992052-A (GB)
Title: Vertical take-off and landing aircraft
IPC: B64C29/00
Filed: 1962-11-29
Abstract: 992,052. Axial flow fans; gas turbine jet propulsion plant. M. A. N.-TURBOMOTOREN G.m.b.H. Nov. 29, 1962 [Dec. 2, 1961], No. 45252/62. Headings F1C, F1G and F1J. [Also in Division B7] In a vertical take-off and landing aircraft, lift is provided by one or more pairs of ducted fans 5, 5<SP>1</SP> and 6, 6<SP>1</SP> driven through free-wheels 13, 13<SP>1</SP> (Fig. 3) by a free power turbine 41 (Fig. 7) in each of two jet propulsion engines 2. Flaps 47, 48 in each engine direct the exhaust gases either to the turbine 41 as seen at the bottom of Fig. 7, or past it through an annular duct 44, as seen at the top of Fig. 7. The fan intakes 7 (Fig. 2) are opened and closed by flaps 8 and the propulsion engine intakes are preferably located laterally of the intake 7.
Patent GB-1157388-A (GB)
Title: A Boot Mould
IPC: B29C33/00
Filed: 1967-10-05
Abstract: 1,157,388. Injection - moulding of boots. DESMA-WERKE G.m.b.H. 5 Oct., 1967 [5 Oct., 1966 ; 15 Feb., 1967; 15 Sept., 1967], No. 45552/67. Heading B5A. A boot last 19, split at 20, is disposed in spaced relationship to a bottom die 41 and split sides 13 of a mould, and the base of the last is located by guide ribs 25, 26 on the die which engage about the edge of the last and prevent transverse movement of the last. The die 14, which enables a part 16 of the sole to be moulded with the boot sides 17 has an injection passage 15. The mould assembly is located within a carrier 11, 18 pivoted to a shaft 10 connected to a turntable of an automatic moulding machine. The last is also mounted on the shaft by pivots 21, 22. The ribs 25, 26 at the heel and toe of the last may be horseshoe-shaped with inner guide surfaces arranged parallel to the axis of the last. A textile lining may be placed around the last. In a modification. Fig. 4, (not shown), the apparatus has two bottom dies brought into operation in sequence such that the first die provides a layer of the boot sole, and the second die enables the rest of the sole to be formed. Each rib may have one or more grooves to facilitate flow of moulding material between them and the last. In the embodiment of Figs. 8 and 9, (not shown), the bottom die is recessed and resiliently supports, in the recess, a mould plate having the guide ribs to receive the last.
Patent GB-1490528-A (GB)
Title: Process for preparing finely-divided precipitated silica flatting agent
IPC: C09C1/00
Filed: 1974-10-22
Abstract: 1490528 Silica flatting agent PPG INDUSTRIES Inc 22 Oct 1974 [23 Oct 1973] 45555/74 Heading ClA [Also in Division C3] A silica flatting agent is prepared by milling amorphous synthetic precipitated silica containing silica agglomerate particles greater than 27 microns, screening the milled silica having agglomerate particles in the range 4-27 microns and a minor amount of particles of less than 2 microns through a screen having nominal openings (as defined) no greater than 27 microns and thence collecting the product free of particles greater than 27 microns and having less than 5 weight percent of particles less than 2 microns and having a median agglomerate size of 4-8 microns.
Patent GB-1531437-A (GB)
Title: Method and apparatus for transferring articles
IPC: B65G51/02
Filed: 1975-11-03
Abstract: 1531437 Conveying articles along conduits; feeding endless conveyers MONSANTO CO 3 Nov 1975 [4 Nov 1974] 45664/75 Heading B8A Containers 148 are conveyed pneumatically along a duct to means 73 which load the containers into pockets 116 of a turntable and when a number of containers accumulates at the downstream end of the duct, a device 14 operates to deflect further containers from the duct. The containers are accelerated into the duct by means of an eductor 26 defining an annular nozzle 40 supplied with air from an inlet 30. The deflecting device 44 is positioned at a portion of the duct where the containers are guided by rails 18, the device including a ram 50 operative to move movable portions (48, Fig. 2) of the rails out of the container guiding position and at the same time pivot a container deflecting tongue 70 into a container engaging position. The ram 50 is actuated when a sensor 46 detects a build up of containers in the duct.  The loading means 73 includes a pair of laterally offset vertically spaced paddles 74, 76 which can be pivoted alternately into a container stopping position within the duct. A stop 80 may also be pivoted into the duct, between the paddles, by means of a ram 86 in response to a sensor 88 in order to cause a build up of articles in the duct. Containers are accelerated out of the duct by opposed wheel sets 94, 96, the paddles oscillating to allow one container to be released at a time. The containers are carried by the turntable to opposed conveyer belts. A C-shaped platform 130 supports containers in the turntable pockets 116 and is inclined from a raised end at a container receiving station to a lower end adjacent the conveyer belts. The containers are guided into the pockets by cams (142, Fig. 9) carrying pegs 140 and fixed to the turntable, the container initially striking the peg and then being guided into a respective pocket.
Patent GB-1194725-A (GB)
Title: Process for the production of Self-Extinguishing and Antistatic Laminated Articles Based on Polyolefine Mouldings
IPC: B32B27/00
Filed: 1967-10-06
Abstract: 1,194,725. Laminates. CHEMISCHE WERKE HœLS A.G. 6 Oct., 1967 [28 Oct., 1966], No. 45792/67. Heading B5N. [Also in Division F2] A polyolefine moulding, which has been given a self-extinguishing property, is provided with a sheath of plasticized polyvinylchloride film or sheeting (which has a Shore hardness of from 62 to 70 and which has been given a selfextinguishing and antistatic quality) by adhesively bonding said moulding to the plasticized polyvinylchloride film or sheeting, the said plasticized polyvinylchloride containing 35-50 parts by weight per 100 parts of polyvinyl chloride of a furnace, channel or thermal carbon black having a mean particle size of from 200-400 Š, as an antistatic agent, and 30 to 70 parts by weight of a phosphoric acid plasticizer. The polyolefines may be polyethylene, polypropylene or polybutene and the self-extinguishing additive pentabromodiphenyl or antimony trioxide with or without a chloroparaffin.
Patent GB-1262820-A (GB)
Title: Variable capacitor
Inventor: JENSEN PER BECK
Filed: 1970-09-25
Abstract: 1,262,820. Variable capacitors. P. B. JENSEN. 25 Sept., 1970, No. 45863/70. Heading H1M. Nut 3 threaded on spindle 2 has an annular tongue engaging a recess in brass electrode sleeve 4 so that rotation of nut 3 moves sleeve 4 along the spindle, leaf springs 13, 14 acting to resist rotation of sleeve 4 round the spindle, the fixed electrode being constituted by metallized layer or metal cap 6 on insulating sleeve 5. The leaf springs may engage longitudinal grooves. End 8 of the spindle may be soldered to a printed circuit board.
Patent GB-1069295-A (GB)
Title: Anthraquinone dyestuffs
Inventor: LODGE FRANK
IPC: C09B1/50
Filed: 1964-11-11
Abstract: The invention comprises mixtures of water-insoluble anthraquinone dyestuffs of the formula <FORM:1069295/C4-C5/1> wherein one of X1 and X2 represents an OH or O.COY. group and the other represents an NH2 or NH.COY group, provided that X1 and X2 together do not represent an OH and an NH2 group; and Y represents a substituted or unsubstituted alkenyl, alkyl, alkoxy, aralkyl, cycloalkyl or aryl radical; and the ring A may carry substituents other than COOH and SO3H groups.  They may be obtained by reacting in a basic or an inert solvent one or more compounds of the formula <FORM:1069295/C4-C5/2> wherein one of X3 and X4 represents an OH group and the other a primary amino group, with at least one equivalent of an acid chloride, acid bromide or anhydride of one or more acids of the formula HOOC.Y.  The process may be carried out in the presence of an acid-binding agent. Specified radicals for Y are C1-C4 alkyl, C1-C4 alkoxy (C1-C4) alkyl, C1-C4 acyloxy (C1-C4) alkyl, C1-C4 alkoxy, hydroxyphenyl and methoxyphenyl.  Specified substituents for ring A are Cl, Br, C1-C4 alkyl, C1-C4 alkoxy, C1-C4 alkane sulphonyl, sulphamyl and N-(C1-C4)-alkyl derivatives thereof; CH2OH, CH2CH2OH, -OCH2CH2OH, -CH2OCH2CH2OH, -CH2OCO.CH2CH2OH, and -CH2OCOCH3. Examples are given for the production of the dyestuffs.  They may be used for dyeing textile materials comprising synthetic fibres, for example, polyamides, cellulose esters, polymers and copolymers of acrylonitrile, polyolefines and polyesters.  A minor proportion of one or more anthraquinone dyestuffs of the formula <FORM:1069295/C4-C5/3> may be obtained by the above process.
Patent GB-1033010-A (GB)
Title: Olefin copolymers
IPC: C08F36/00
Filed: 1963-11-21
Abstract: Substantially linear, amorphous vulcanizable high molecular weight copolymers of ethylene, an olefin of the general formula R-CH = CH2 wherein R is an alkyl group containing from 1 to 6 carbon atoms, and an olefinically unsaturated halogen containing hydrocarbon monomer in which the halogen atom or atoms are linked directly to carbon atoms bound by double bonds are made by copolymerizing the monomeric mixture in the presence of a halogen containing catalyst consisting of the reaction product between a vanadium compound and an aluminium or beryllium organometallic compound and optionally an ether, thioether, amine or trisubstituted phosphine.  The halogen-containing monomer may be p-bromoallylbenzene, pentafluoroallylbenzene, 2-chloro-1,4 - pentadiene, 2 - bromo - 1,4 - pentadiene, 4 - bromo - 1,4 - hexadiene, 6 - chloro - 1,5-hexadiene, 1 - chloro - cyclo - octadiene - 1,5, 1 - bromo - cyclooctadiene - 1,5, 1 - chloro - 4 - vinyl - cyclo - hexane - 1, 2 - chloro - 4 - vinyl-cyclohexene - 1, 2 - chloro - bicyclo - [2,2,1]-heptadiene - 2,5 - (2 - chloronorbornadiene), and 2,3 - dichlorobicyclo - [2,2,1] - heptadiene-2,5 - (2,3 - dichloronorbornadiene).  The Specification contains extensive lists of suitable catalyst components of which the following are exemplified, VCl4 and aluminium trihexyl, VCl4 and aluminium diethyl monochloride, VCl4 and beryllium diethyl, vanadium trichloride pyridinate and aluminium diethyl monochloride, and vanadium oxytrichloride and aluminium diethyl monochloride.  The reaction is preferably effected in an inert diluent, and the reaction terminated by addition of methanol and phenyl-beta-naphthyl-amine. The copolymers are purified by treatment with dilute HCl, water and acetone.  The copolymer is vulcanized with zinc oxide or zinc stearate.
Patent GB-1331271-A (GB)
Title: Drive balance assemgly for an electronic timepiece
IPC: G04C3/04
Filed: 1970-09-29
Abstract: 1331271 Electric timepieces CITIZEN WATCH CO Ltd 29 Sept 1970 [29 Sept 1969] 46171/70 Heading G3T In an electronic timepiece of the kind having a balance 10 carrying a pin 22 which advanced a stepping wheel 23, when the balance is in its neutral position the pin 22 is offset by at least 20 degrees from a line 28 joining the axed O 1 , O 2  of the balance and stepping wheel. The arrangement is stated to introduce a stepping error  which may be arranged to compensate for other errors in isochronism - see Figs. 5, 6 (not shown). The pin 22 may be offset to either side of the line 28 and the arrangement is also stated to facilitate self-starting. A magnet 27 fixed to a plate 20 co-operates with the teeth of the wheel 23 to prevent reverse rotation. The balance 10 carries counterweights 13a, b and permanent magnets 12a, b which co-operate with fixed driving and sensing coils 14. In an alternative arrangement, the balance carries four permanent magnets (12a'-d'), Fig.4 (not shown) and has a single counterweight (13).
Patent GB-1450561-A (GB)
Title: Capacitance circuits
IPC: H01L21/822
Filed: 1973-10-03
Abstract: 1450561 Semiconductor integrated circuits HITACHI Ltd 3 Oct 1973 [4 Oct 1972] 46246/73 Heading H1K [Also in Division H3] In an integrated circuit comprising a semiconductor junction capacitance element C which develops noise at breakdown, a zener diode DZ is formed electrically in parallel with the element C, the zener diode having a p-n junction area of about 200 Ám<SP>2</SP>, and a lower breakdown voltage and a lower noise level than the element c. As shown, the capacitance element C operates by virtue of the depletion layer at the junction between a buried n<SP>+</SP> region 4 and a p<SP>+</SP> isolation region 5<SP>11</SP>, and the zener diode DZ comprises an n<SP>+</SP> region 11 and a p  region 12. In modifications, region 12 is omitted, DZ being formed by n<SP>+</SP> region 11 and an adjoining p<SP>+</SP> isolation region common with element C (Fig. 7b, not shown); the p<SP>+</SP> region of element C is separate from the isolation region (Fig. 8b, not shown); and DZ is constituted by the base-emitter junction of an n-p-n transistor (Figs. 9, 10, not shown). Transistor regions in the IC may be diffused simultaneously with corresponding regions of C and DZ. The IC may comprise a detector circuit for colour television apparatus (see Division H3).
Patent GB-1092221-A (GB)
Title: Optical filters
Inventor: WARREN STANLEY WILLIAM
IPC: G02B5/28
Filed: 1965-11-02
Abstract: 1,092,221. Optical filters. STANDARD TELEPHONES & CABLES Ltd. Nov. 2, 1965, No. 46288/65. Heading G2J. An optical filter, e. g. for use at a wavelength of 30 microns, comprising a plurality of alternately partially-reflecting and spacing layers is formed by depositing by evaporation in vacuo films H of a material for the partially-reflecting or spacing layers on to a plurality of polished slices L of a material for the spacing or partiallyreflecting layers, these composite layers then being arranged in tandem to form one filter. These composite layers may be arranged contiguously or in spaced relationship. The material of the deposited films is germanium while that of the polished slices is monocrystalline quartz.