baber/WOPTO huggingface dataset:
Patent GB-1063384-A (GB)
Title: Substituted 3-haloacetyl indoles
IPC: C07D209/22
Filed: 1963-08-26
Abstract: 1,063,384. 3-Haloacetylindoles. MERCK & CO. Inc. Aug. 26, 1963 [Sept. 7, 1962], No. 43065/65. Divided out of 1,063,383. Heading C2C.  Novel compounds of formula in which R 1  is an aromatic radical having one ring or two fused rings containing 5 or 6 atoms, any hetero atoms being oxygen, nitrogen and/or sulphur and there being no more than three hetero atoms in no more than one of said rings, which may be substituted by halogen, hydroxy, alkoxy, phenoxy, nitro, allyloxy, benzoyl, phenylacetyl, benzylthiomethyl, sulphonamido, alkanoylamino, dialkylamino, mercapto, alkylthio, haloalkylthio, benzylthio, benzyloxy, phenylthio, haloalkyl, alkanoyl, haloalkanoyl, haloalkoxy, cyano, dialkylsulphonamido, carboalkoxy, aldehydo or dialkylcarbamoyl, R 2  is a hydrogen atom or alkyl, alkenyl, phenyl, p. methoxyphenyl, p-chlorophenyl, tolyl or benzyl, R 5  is hydrogen, alkyl, alkoxy, allyloxy, CF 3 , CHF 2 , nitro, cyano, aminomethyl, amino, benzyloxy, benzylmercapto, alkylthio, diphenylamino, benzylamino, #-phenylethylamino, chloroalkylamino, chlorophenylamino, chlorobenzylamino, alkoxyalkylamino, alkylanilino, alkoxyanilino, dialkylamino, alkanolamino, dialkanolamino, anilino ureido, morpholino or alkylamino, X is chlorine, bromine or fluorine, and each of Y and Z is hydrogen, chlorine, bromine or fluorine are prepared by reacting an indole, which may be substituted in the R 2  and/or R 5  position as defined above, except that R 5  is not an amino or alkylamino group, with a haloacetyl halide or anhydride of formula CXYZ.CO.X<SP>0</SP> or CXYZ.CO.O.CO. CXYZ, where X<SP>0</SP> is a halogen to form a 3- haloacetylindole and treating this with an acylating agent capable of introducing the radical R 1 CO- and, if R 5  is a nitro group, if desired reducing this group to form an amino group which may be alkylated, or by reacting an indole which may be substituted as stated above with an acylating agent capable of introducing the R 1 CO- radical, and, if R 5  is a nitro group, if desired reducing this group to form an amino group which may be alkylated, and reacting the 1-aroylindole with a haloacetyl halide or anhydride.
Patent GB-920195-A (GB)
Title: Spring loaded impact device
Inventor: HOELSCHER GERHARD
IPC: B21J7/12
Filed: 1960-12-15
Abstract: 920,195. Percussive tools; centre punches. MUSTAD MASCHINEN-UND EISENWARENFABRIK G.m.b.H. Dec. 15, 1960, No. 43226/60. Classes 61 and 124. In a spring-actuated tool comprising a spring 5 compressed by downward movement of an outer shell 2, and a striker 4 impelled by the spring on to an anvil 1<11> on the tool holder 1, the striker is held inoperative during downward movement of the shell by balls 8 running along inclined channels 10 in the striker and engaging the end 1<1> of the holder. Towards the end of the downward movement a surface 2<1> on the shell forces the balls into the channels to release the striker. The tool 3 is exchangeable, and the compression of the spring 5 may be adjusted by a cap 6 having a lock-nut 7.
Patent GB-1358390-A (GB)
Title: Injection nozzle of adjustable length
IPC: B29C45/20
Filed: 1971-09-20
Abstract: 1358390 Injection moulding machine nozzles BISCHOFF CHEMICAL CORP 20 Sept 1971 43711/71 Heading B5A A nozzle for an injection moulding machine comprises an externally threaded hind member 341 (Fig. 3) engaging an internally threaded fore member 332, the hind member having a tubular portion 394 fitting with close tolerance within the fore member and having a zone 395 which can be expanded against the fore member by the pressure of injected material so as to prevent rotation thereof and seepage of material between the members 341, 332. Escape of material is further hindered by 0-rings 374, 378, 380. Any material which does reach a groove 382 or a chamber 384 can escape through holes 383, 385. Fig. 1 shows a mould 11 for making a boat and having a plurality of orifices 21, 22 supplied by injection nozzles 31. An extension member 39 may be inserted between portions 40, 41 of the nozzle, being held in place by couplings 37, 38 incorporating screwed ferrules (as 154, 155 in Fig. 2, not shown). The nozzle outlet 391 can be closed by a plunger 390.
Patent GB-915380-A (GB)
Title: Improvements relating to photo-sensitive circuits employing transistors
Inventor: THORNTON GEOFFREY
IPC: G01J1/44
Filed: 1960-12-20
Abstract: 915,380. Photo transistor relay circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Oct. 31, 1961 [Dec. 20, 1960], No. 43771/60. Class 40 (6). A photo-sensitive indicator comprising a pair of transistors T1, T2 coupled to form a twostate circuit, and a photo-sensitive element connected so that the conductive state of the circuit depends on the illumination reaching the element is characterized in that means are provided for preventing the return of the circuit to one of its two states for a predetermined minimum time irrespective of any intervening change in illumination of the photo-sensitive element. As shown in Fig. 1, the load R2 has a larger resistance than the relay coil 1 so that when the circuit switches from T2 conducting to T1 conducting the the current through R4 decreases, and the potential at point A goes more positive. This positive change is fed through capacitor C1 to reverse bias the base of photo-transistor P1 until the capacitor charge takes up its new value. During this time P1 remains non-conducting irrespective of any increase in illumination. In an alternative embodiment, Fig. 2, the photo-sensitive device is a diode P2 and the capaciter C1 is connected to apply bias to the base of a transistor T3 arranged to be switched by the change in conduction of the photo-diode. The circuit operates in an identical manner except that it is the transistor T3 which is controlled by the potential at point A and not the photo-sensitive device. Specification 874,915 is referred to.
Patent GB-965786-A (GB)
Title: Improved polymeric moulding compositions
Inventor: ENNOR KENNETH STAFFORD
IPC: C08L33/08
Filed: 1961-12-08
Abstract: A thermoplastic moulding composition comprises a mixture of (A) polymethyl methacrylate or a copolymer of methyl methacrylate with less than 40% by weight of units of a monoethylenic comonomer, and (B) a saturated rubber which is polyethyl acrylate or a copolymer of ethyl acrylate with up to 20% by weight of units of a monoethylenic comonomer, the saturated rubber forming from 5 to 50% by weight of the mixture. Comonomers specified for use in polymer (A) are styrene, alkyl styrenes, halo-styrenes, acrylic and methacrylic nitriles and amides, and lower alkyl acrylates; and for use in polymer (B) are acrylonitrile, 3-chloropropyl acrylate, chloromethyl and 2-chloroethyl vinyl ethers.  The mixture of the two polymers may be made by the following methods: (i) by mixing latices of the two polymers and removing the water, (ii) by mixing one polymer in dry for with a latex of the other polymer and removing the water, (iii) by masticating both polymers together in dry form, (iv) by polymerizing a methyl methacrylate-containing monomeric material containing a saturated rubber dissolved therein, and (v) by polymerizing a methyl methacrylate-containing monomeric material in a latex of the saturated rubber.  In the examples: (1) a mixture of methyl methacrylate and ethyl acrylate containing dissolved polyethyl acrylate is polymerized in suspension in an aqueous medium containing polyvinyl alcohol in the presence of benzoyl peroxide; and (3) polymethyl methacrylate and an ethyl acrylate/acrylonitrile copolymer are milled together.
Patent GB-1058495-A (GB)
Title: Improvements in and relating to electrical contact brushes
Inventor: JEFFREYS NATHANIEL GEORGE MIDD
IPC: H01R39/24
Filed: 1964-10-28
Abstract: 1,058,495. Brushes for commutators or slip rings. LE CARBONE (HOLDINGS) Ltd. Oct. 28, 1965 [Oct. 28, 1964], No. 44027/64. Heading H2A. An electrical contact brush, e.g. of a commutator or slip ring, has spaced therefrom but movable relatively thereto a pressure plate 1 which is connected to a member 4 located in a passage extending transversely of the brush and supported therein by resilient material so that the plate is resiliently mounted on the brush. The brush may comprise one or a plurality of carbon parts 9, 10 having slight relative movement and riveted together by the member 4 which may be a copper, brass or steel rod or tube insulated at the ends by resin washers 6, 7 or shellac coatings. The pressure plate 1 may be of copper, brass, steel or plastics and bevelled and provided with two support arms 2. The resilient material may be a neoprene, silicone or other rubber sleeve 3 adhered to both the brush passage and member 4. In other embodiments each brush has two members 4 and sleeves 3 in which case the adhesive therebetween is omitted.
Patent GB-1101666-A (GB)
Title: Improvements in or relating to travelling wave tubes
Inventor: THOMPSON ROGER ROSS
IPC: H01J23/30
Filed: 1963-11-11
Abstract: 1,101,666. Travelling wave tubes. ENGLISH ELECTRIC VALVE CO. Ltd. 7 Aug., 1964 [11 Nov., 1963], No. 44380/63. Heading HID. A travelling wave tube has a delay line and an attenuator, the axial position of which is so chosen that the phase change produced in the section A of the delay line is substantially cancelled out by the phase change produced in the section B. The length of section A compared with section B is between 0À65 and 0À75, preferably 0.7. The attenuator may be in the form of a graphite layer disposed either on the inside of the envelope or on the helix support rods, or the attenuation may be constituted by a gap or sever in the helix.
Patent GB-1174716-A (GB)
Title: Preparation of Organic Nitriles
IPC: B01J31/16
Filed: 1968-09-19
Abstract: 1,174,716. Preparation of organic nitriles. E. I. DU PONT DE NEMOURS & CO. 19 Sept., 1968 [31 Oct., 1967], No. 44506/68. Heading C2C. Organic nitriles are obtained by reacting hydrogen cyanide with an organic compound having at least one non-conjugated ethylenic carbon-carbon double bond and containing from 2 to 20 carbon atoms at a temperature of from - 25‹ to 200‹ C. and in the presence of a zero valent nickel complex and a borane of the formula B a H a+4 , wherein n is an integer of 2- 10, or B m H m+6 , where m is an integer of from 4-10, or an organoboron compound of the formula B(R<SP>1</SP>) 3 , where R<SP>1</SP> is H, a C 6-18  aryl radical, a lower (C 1-7 ) alkyl radical, or a cyano substituted lower alkyl radical, the molar ratio of borane or organoboron compound to nickel complex being from 1: 16 to 50: 1. The nickel complex, which is suitably one which causes the isomerization of 3-pentenenitrile to 4-pentenenitrile, may be pre-formed or prepared in situ and suitably has the formula where A<SP>1</SP>, A<SP>2</SP>, A<SP>3</SP> and A<SP>4</SP>, which may be the same or different, are M(XYZ), where M is P, As or Sb and X, Y and Z, which may be the same or different, are R or OR, where R is an alkyl or aryl group having up to 18 carbon atoms. The ligand may be used in excess, when it may serve as a solvent, or an inert organic solvent may be present. The examples describe the production of adiponitrile, 2-methyl glutaronitrile and ethylsuccinonitrile.
Patent GB-1362097-A (GB)
Title: Freeze-drying apparatus
Inventor: BOULDOIRES J-P
IPC: F26B5/06
Filed: 1972-09-27
Abstract: 1362097 Freeze drying NESTLE SA 27 Sept 1972 [30 Sept 1971] 44540/72 Heading F4G In a freeze drying process the condition of the product is monitored by apparatus 16 measuring the capacitance and/or associated resistance of capacitors with the product as dielectric between metal partitions 15 dividing the tray 6 on which the product is placed. Hot glycol is circulated either through the partitions 15, which are hollow, or through pipes (28) (Fig. 3, not shown) which heat the trays. In the former case the trays are plastics; in the latter ease the trays are metallic and electrically but not thermally insulated from their solid, striplike paritions by a thin coating. Screens for removing water vapour may be situated between the partitions.
Patent GB-1182087-A (GB)
Title: Pneumatic Speed Transducer System
IPC: G01P3/26
Filed: 1968-09-19
Abstract: 1,182,087. Valves. GENERAL MOTORS CORP. 19 Sept., 1968 [1 Nov., 1967], No. 44581/68. Heading F2V. [Also in Divisions G1 and G3] In a vehicle speed indicating system, a magnet 81 driven from the vehicle transmission 44 positions a speed cup 76 to control a valve member 68 regulating air leakage into a conduit 20 connected to a vacuum source, such as the inlet manifold, via restriction 26 and reservoir 30. The air pressure in conduit 20 is thereby a function of the vehicle speed and is communicated with a suitably calibrated vacuum gauge 12. A shaft 84 also driven from the transmission has a flat adapted to actuate a switch 94 once each revolution to energize a solenoid 98 of an odometer 16. The eddy current motor formed by the magnet 81 and cup 76 has no return spring, the bias being provided by the pressure difference across valve member 68. The motor, valve and switch are housed in a two-part easing (48, 50) provided with an inlet air filter pad (58).
Patent GB-1523910-A (GB)
Title: Method of manufacturing ferrite cores
IPC: C04B35/38
Filed: 1975-10-29
Abstract: 1523910 Manganese zinc ferrous ferrites PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 29 Oct 1975 [12 Nov 1974] 44625/75 Heading C1J A manganese-zinc-ferrous ferrite body (e.g. a core for a magnetic head) having a reduced porosity of less than 1% is manufactured by preparing a mixture containing oxides of iron, manganese and zinc and/or compounds which form these oxides on heating; prefiring the mixture, grinding the prefired material, compressing the ground material, heating the compressed material to the sintering temperature and sintering the compressed material wherein the material to be heated and sintered is given a ferrous content which differs by not more than 20% from the ferrous content of the stoichiometric composition (ratio of cations to anions is 3:4) during one of the steps preceding the step of heating the compressed material to the sintering temperature. The sintering temperature is between 1200‹ C. and 1300‹ C. except in the case where the mixture contains the required ferrous ion in the form of Fe 3 O 4  when the sintering temperature is between 1050‹ C. and 1300‹ C. The ferrous content may also be given during the prefiring step by use of an oxygen containing atmosphere, the partial oxygen pressure of which corresponds to the equilibrium oxygen pressure of the material having the stoichiometric spinel composition of the temperature used.
Patent GB-1060497-A (GB)
Title: Oxymethylene polymer compositions
IPC: C08K9/08
Filed: 1963-11-13
Abstract: A stable thermoplastic composition containing an oxymethylene polymer and carbon black is obtained by intimately mixing the carbon black with a thermoplastic polymer inert thereto and thereafter blending the mixture obtained with the oxymethylene polymer. Suitable thermoplastic polymers are polyolefine polyalkyl methacrylates, polytetrafluoroethylene and polychlorotrifluoroethylene.  Carbon blacks used are preferably channel blacks and furnace blacks, the particles of which have been agglomerated with water to form particles having a diameter between 0.01 and 0.03 inch. The oxymethylene polymers are preferably copolymers of formaldehyde with cyclic ethers, e.g. ethylene oxide.  The compositions may also contain stabilizers, e.g. cyano guanidine and 2,21-methylene bis-(4-methyl-6-t.-butyl phenol).
Patent GB-1457360-A (GB)
Title: Electrolytic steam genrators
IPC: F22B1/30
Filed: 1974-10-16
Abstract: 1457360 Electrolytic steam generators INNOVATIVE PROCESS EQUIPMENT Inc 16 Oct 1974 [25 Feb 1974] 44884/74 Heading F4A [Also in Division H5] In an electrolytic steam generator, a tank 11 encloses a steam generating chamber within which is located on electrode support 36 with a plurality of involute-shaped, mutually spaced apart electrodes 53 connected to conductive discs 44, 45 and 46 forming part of the electrode support 36 which, in turn, is connected to a source of electric power through electrical connector 25 located in a cover-plate 14 of the tank 11. A water inlet 18 is provided at the lower part of the side wall of the tank, a drainage outlet 19 is provided in the base of the tank and steam outlets 22, 23 are provided in the top cover of the tank. A plurality of non-conductive discs 40, 41 42 and 43 are sandwiched between the conductive discs 44, 45 and 46. The expansion and contraction of the electrodes 53 causes scale deposits on the electrodes to be dislodged therefrom.
Patent GB-1522434-A (GB)
Title: Non-opaque flame retardant polycarbonate composition
IPC: C08L77/00
Filed: 1976-10-28
Abstract: 1522434 Flame retardant polycarbonate compositions GENERAL ELECTRIC CO 28 Oct 1976 [29 Oct 1975] 44937/76 Addition to 1495970 Heading C3R A non-opaque flame retardant composition comprises a polycarbonate and from 0À001 to 2À0% by weight, based on the polycarbonate, of an alkali metal or alkaline earth metal salt of a monomeric or polymeric aromatic sulphonic acid that contains a sulphone group bonded to an aromatic ring, the polycarbonate and the salt each having a refractive index of from 1À54 to 1À65. Many salts are specified, e.g. potassium salt of diphenyl sulphone-3-sulphonic acid.
Patent GB-1116476-A (GB)
Title: Method and apparatus for winding roving
IPC: B65H54/02
Filed: 1966-10-07
Abstract: 1,116,476. Making rovings: twisting apparatus. CERTAIN - TEED PRODUCTS CORPORATION. 7 Oct.. 1966 [29 June. 1966], No. 44976/66. Headings DID and D1F.  In a method of producing a roving package, a number of parallel -strands which are not twisted around one another, are wound on a non-rotating support and twisted during the winding so as to produce one revolution of twist of the strands in the roving around one another for each turn around the support. The method is particularly applicable to the production of glass fibre rovings from strands withdrawn together from a number, e.g. 60 of packages which are themselves produced in each case from a number e.g. 204 of filaments. When a roving is withdrawn from a package so produced, it receives a twist which may prove undesirable in the subsequent use of the roving, and the method of the invention aims to impart a twist to the roving to neutralize the twist imparted by the withdrawal. The roving is laid on a mandrel carried by a hollow shaft 44, Fig. 2, which does not rotate but is reciprocated axially, as a drum 22 rotates around the shaft. The drum is driven from a motor 13 through belts attached to pulleys one at each end of a shaft 16. The shaft is reciprocated by a cam 33 rotated by a shaft 32 driven from the motor through a shaft (25. Fig. 1 ) fitted with a fly-wheel (28) and a speed-reducer (31). The cam rotates between plates 36 with cam followers 34, 35 which rock about a pivot 37 and are connected by a pivoted link 41 to a clamp 43 fixed to the shaft. For laying the yarn, the inside of the drum has pivoted to it an arm 59, Fig. 4, spring-urged at its pivot so that a roller 68 at its free end is kept in contact with the mandrel 49. The arm carries pigtail and guide-eyes 64, 65. The strands of the roving travel axially through the tube, are gathered in the pigtail 64, pass as a roving through the guide 65 and under the roller 68, to be wound with one revolution of twist for each rotation of the drum in the form of a cylindrical package. For doffing, the arm is pulled away from the mandrel by a handle (63, Fig. 5, not shown) and a collar 53 is removed by undoing a set screw 54 so that the package can be slid off the mandrel.
Patent GB-1107479-A (GB)
Title: Gear cutting machine with stock-divider
IPC: B23F23/08
Filed: 1966-10-10
Abstract: 1,107,479. Toothed gearing. GLEASON WORKS. 10 Oct., 1966 [10 Dec., 1965], No. 45194/66. Heading F2Q. [Also in Division B3] A composite bevel gear comprises a stem 5, a spiral bevel pinion 6 and a spiral bevel gear 7 brazed together. In the manufacture of the gear the teeth of the bevel pinion are cut first, the parts then brazed together and the teeth of the bevel gear cut in a machine having stock divider means (see Division B3) which use the teeth of the bevel pinion as a reference surface in order to ensure that the teeth of the bevel pinion are cut in accurate angular relation to those of pinion 6.
Patent GB-1383355-A (GB)
Title: Screening machine
IPC: B07B1/30
Filed: 1972-10-04
Abstract: 1383355 Vibratory screening machine MIAG MUHLENBAU UND INDUSTRIE GmbH 4 Oct 1972 [12 Oct 1971] 45780/72 Heading B2H A screening machine comprises a box 11-15 within which is mounted one or more screens 31, 33, Figs. 1 and 3, inclined downwardly in the direction of flow of material to be screened from an inlet for the material, and a pressure frame 34 for holding the screens in position, spacer frames, e.g. 32, being provided between the screens, and the box being closed at its top by a cover 21, 23, having outlets for screened material and for oversized and/or undersized material, being supported at its sides on resilient mounting 44, Fig. 4, and being provided on each side with a vibrator 19 for imparting vibrations to the screens. The pressure frame 34 has a cross-bar 34' through which the frames and the screens are pressed against one another by means of screws 24. The material is fed through a feed box 16 within which is mounted an inclined tray 16' having an adjustable extension 16" for controlling the feed. The clean grain which has passed through the coarse screen 33 is removed in the direction of arrow 1, the rejects from the screen 24 leave in the direction of arrow 3 and the fines which have passed through fine screen 31 leave in the direction of arrow 4. The cover has a flap portion hinged at 25 which can be lifted in the direction of arrow 2 and which can be locked by an eccentric lock 26. Each vibrator 19 is in the form of an adjustable out-of-balance rotor transmitting linear vibrations in the direction of arrows 8. The box is supported by angle irons 43 resting on rubber cushions 44 which 'in turn are supported on angle irons 45 adjustably fixed to posts 41, 42 so that the inclination of the screens may be varied.
Patent GB-1402470-A (GB)
Title: Shaft seal
IPC: B29D99/00
Filed: 1972-10-04
Abstract: 1402470 Shaft seals FEDERAL MOGULSUPERTEX SpA 4 Oct 1972 [12 Jan 1972] 45791/72 Heading F2B [Also in Division B5] In moulding a shaft sealing ring respective materials are supplied to an inner and an outer part of the mould, the materials being polymerized or vulcanized subsequently to produce an inner flexible sealing lip and an outer rigid ring part, which parts are chemically bonded together. Both materials may be basically an elastomer, e.g. rubber containing butadiene acrylonitrile copolymer, mixed with fillers, e.g. magnesium oxide, silicic acid, carbon black and phenolic resin, and additives, e.g. lauric acid and tertiary butyl-peroxy-isopropylbenzene. The rigid ring part material may additionally contain fibreglass, and the lip material contains a substantially greater proportion of propanetrimethylol-acrylic ester plasticizer than the rigid part. After moulding the ring, by compression moulding or by injection moulding using two separate injectors, polymerization may be carried out for five minutes at 170‹ C.